CN107269504B - Peristaltic pump - Google Patents
Peristaltic pump Download PDFInfo
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- CN107269504B CN107269504B CN201710704141.5A CN201710704141A CN107269504B CN 107269504 B CN107269504 B CN 107269504B CN 201710704141 A CN201710704141 A CN 201710704141A CN 107269504 B CN107269504 B CN 107269504B
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- hose
- peristaltic pump
- pump head
- adjusting
- support base
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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
- F04B43/12—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
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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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
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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
- F04B2205/00—Fluid parameters
- F04B2205/09—Flow through the pump
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to the technical field of peristaltic pumps, in particular to a peristaltic pump. In order to solve the known defects of flow regulation of the peristaltic pump, the invention provides the peristaltic pump; the peristaltic pump has a fine tuning step: the flexible pipe is stretched to change the tensioning degree of the flexible pipe, the inner diameter of the flexible pipe positioned in the arc of the pump head is adjusted, and the flow of the peristaltic pump is finely adjusted; and a coarse adjustment step: roughly adjusting the flow of the peristaltic pump by a conventional method for adjusting the rotating speed of a driving disc; the coarse adjustment step is combined with the fine adjustment step to continuously adjust the flow rate of the peristaltic pump. The peristaltic pump is combined with the adjusting mechanism, the tensioning degree of the hose is adjusted in a moving or rotating mode through the adjusting mechanism, and the inner diameter of the hose is adjusted to adjust the flow rate of the peristaltic pump. Compared with the prior art, the invention can realize fine adjustment and continuous adjustment.
Description
Technical Field
The invention relates to the technical field of peristaltic pumps, in particular to a peristaltic pump capable of finely adjusting flow.
Background
The peristaltic pump consists of three parts: a drive, a pump head, and a hose.
The conventional peristaltic pump adjusts the flow rate by changing the rotation speed of the peristaltic pump (within a certain rotation speed range, the faster the rotation speed, the faster the flow rate), because the liquid transfer rate of the peristaltic pump actually refers to the product of the number of "unit volume" transferred per unit time of the pump head of the peristaltic pump and the "unit volume". Note: "unit volume" refers to the contained volume of fluid between two rollers.
Among all the pump types at present, the peristaltic pump is the pump type product with the highest hygienic level, so that the peristaltic pump is the most suitable fluid transfer device from the hygienic level on food and medicine machinery. However, the peristaltic pump at present cannot meet the requirements of actual industrial production in terms of flow rate stability and filling amount adjustment, and particularly cannot be slightly adjusted after production conditions are changed, which is the biggest obstacle for limiting the use of the peristaltic pump. Because the structure of the peristaltic pump is limited, the liquid to be transmitted is in one flow, and the rotation speed regulation resolution of the peristaltic pump is generally 0.1rpm in the interval of 0-100rpm and 1rpm in the interval of 100-600 rpm; this results in that the peristaltic pump is not really stepless speed-regulating when regulating the flow, but has a jump variable, for example, from 100rpm to 101rpm, the flow rate is increased by 1%, if we need to increase the flow rate by 0.5%, which cannot be achieved by the prior art. The peristaltic pump cannot adjust the flow rate to any required setting on the occasion of high-precision flow rate requirement; in addition, the peristaltic pump hose can generate elastic change in the process of transmitting fluid by being extruded by the roller, so that the flow rate is attenuated or increased, and the initially set flow rate cannot be completely recovered by adjusting the rotating speed; in a high-precision filling occasion, the filling amount of the peristaltic pump cannot be set randomly, for example, the filling amount is adjusted from 4g to 4.02g, so that the adjustment of the precision is far beyond the reach of the conventional peristaltic pump; when a plurality of pump heads are filled or used for transferring fluid, the flow rate of the peristaltic pump heads of the same type has certain difference under the condition of the same rotating speed due to the size error of the pump heads and the manufacturing error of the hoses, and the difference cannot be adjusted to be consistent by changing the rotating speed. There is currently no effective way to solve the above problems in peristaltic pumps.
Since the flow rate of a peristaltic pump is the product of the number of "units of volume" delivered per unit of time and the "unit of volume". The control of the number of the unit volume in the unit time is actually to adjust the flow rate by adjusting the rotating speed, so a method for adjusting the flow rate of the peristaltic pump by adjusting the size of the unit volume and the peristaltic pump manufactured based on the method are needed to solve the problems.
Disclosure of Invention
The invention aims to design a peristaltic pump flow adjusting method and a peristaltic pump based on the method, and the peristaltic pump has the advantages of being capable of achieving a fine adjustment function and a continuous adjustment function.
The invention is realized by the following technical scheme:
the peristaltic pump flow adjusting method comprises the fine adjustment steps of:
different forces are applied to the discharge end and the suction end of the hose, which are positioned outside the circular arc of the pump head, so that the tensioning degree of the hose is changed, the inner diameter of the hose positioned in the circular arc of the pump head is adjusted, and the purpose of finely adjusting the flow of the peristaltic pump is achieved in a mode of changing the unit volume.
Further comprises a coarse adjustment step:
roughly adjusting the flow of the peristaltic pump by a conventional method for adjusting the rotating speed of a driving disc; and the coarse adjustment step is combined with the fine adjustment step to continuously adjust the flow rate of the peristaltic pump.
Further, one aspect of the fine tuning step includes the steps of:
A. fixing one end of the hose, which is positioned outside the arc of the pump head;
B. and stretching the other end of the hose, which is positioned outside the arc of the pump head.
Wherein, the one end and the other end refer to a suction end or a discharge end of the hose which is positioned outside the arc of the pump head.
As another scheme of the fine tuning step, the fine tuning step includes the following steps:
the opposite ends of the hose, which are located outside the pump head arc, are simultaneously stretched towards the outside of the pump head arc.
A peristaltic pump comprises a pump head and a hose; the pump head is provided with an adjusting mechanism, and the adjusting mechanism is fixedly connected with the pipe bodies at two opposite ends of the hose, which are positioned outside the arc of the pump head, through a clamping piece; the adjusting mechanism controls the clamping piece to move to stretch the hose.
Wherein, the opposite ends outside the pump head arc refer to the suction end and the discharge end of the hose located outside the pump head arc.
In order to further better implement the invention, the following arrangement structure is particularly adopted: the adjusting mechanism comprises a supporting base, an adjusting screw rod and a movable clamping seat, and the clamping piece is a hose sleeve clamp;
the hose cover card is fixed respectively and cup joints on the pipe shaft that the hose lies in the relative both ends outside the pump head circular arc, supporting pedestal fixed connection is in the pump head, the relative both ends of removing the cassette are fixed connection with corresponding hose cover card respectively, adjusting screw's one end and supporting pedestal counterbalance, adjusting screw's the other end pass supporting pedestal in proper order with remove the cassette and with remove the cassette spiro union.
When the structure is arranged, the movable clamping seat and the hose sleeve clamp fixedly connected to the hose realize indirect fixed connection with the hose, the movable clamping seat moves up and down by rotating the adjusting screw rod, the tensioning degree of the hose between the hose sleeve clamps is changed, and the adjustment of the inner diameter of the hose section between the hose sleeve clamps is realized.
In order to further better implement the invention, the following arrangement structure is particularly adopted: the adjusting mechanism further comprises a guide rod arranged in parallel with the adjusting screw rod, one end of the guide rod is fixedly connected to the supporting base, and the other end of the guide rod penetrates through the movable clamping seat.
When the structure is arranged, the movable clamping seat can be adjusted more conveniently and stably by the aid of the guide rod.
In order to further better implement the invention, the following arrangement structure is particularly adopted: the supporting base, the adjusting screw, the movable clamping seat and the guide rod are arranged in the pump head, the movable clamping seat is arranged above or below the supporting base, the adjusting screw is vertically arranged, and the movable clamping seat can move up and down by rotating the adjusting screw.
As an alternative to the above-mentioned adjusting mechanism, the adjusting mechanism includes a supporting base, an adjusting screw and a rotating sheet, and the clamping member is a hose sleeve clamp;
the support base is fixedly connected with the pump head, one hose sleeve clamp is fixedly connected with one end of the support base, the other hose sleeve clamp is fixedly connected with one end of the rotary sheet body, and the other end of the rotary sheet body is hinged with the other end of the support base through a hinge rotating shaft;
the rotary sheet body and the support base are respectively provided with a movable rotating shaft capable of freely rotating through a hoop in a clamping manner, and the two movable rotating shafts are arranged in parallel with the hinge rotating shaft;
one end of the adjusting screw rod is abutted to the movable rotating shaft arranged on the supporting base, the other end of the adjusting screw rod sequentially penetrates through the movable rotating shaft arranged on the supporting base, the movable rotating shaft arranged on the rotary sheet body, the rotary sheet body and the rotary sheet body, and is in threaded connection with the rotary sheet body, and the axis of the adjusting screw rod is perpendicular to the axis of the movable rotating shaft.
In order to further better implement the invention, the following arrangement structure is particularly adopted: support base, adjusting screw and rotatory lamellar body set up outside the pump head, support base fixed connection is in the pump head outer wall.
The invention has the following advantages and beneficial effects:
(1) the invention relates to a flow adjusting method of a peristaltic pump, which comprises a fine adjustment step and a coarse adjustment step; in the fine adjustment step, the flexible pipe is stretched to change the tensioning degree of the flexible pipe, so that the inner diameter of the flexible pipe positioned in the arc of the pump head is adjusted, and the purpose of fine adjustment of the flow of the peristaltic pump is achieved in a mode of changing the unit volume; meanwhile, the fine adjustment step is used as supplement, and the fine adjustment step and the rough adjustment step are combined, so that the setting of the flow rate in any interval can be realized, namely the continuous adjustment of the flow of the peristaltic pump is realized;
(2) according to the invention, different structures of adjusting mechanisms are designed for different pump heads, the opposite ends of the hose positioned outside the arc of the pump head are fixed by the adjusting mechanisms, the tensioning degree of the hose is adjusted in a movable or rotary adjusting mode, the purpose of adjusting the inner diameter of the hose is realized, and thus the flow of the peristaltic pump is adjusted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of a peristaltic pump described in embodiment 3;
FIG. 2 is a schematic front view of the peristaltic pump of embodiment 3;
FIG. 3 is a schematic view of the structure of the peristaltic pump described in embodiment 4;
FIG. 4 is a schematic front view of the peristaltic pump of embodiment 4;
labeled as:
1-a support base; 2-adjusting the screw rod; 3-moving the card holder; 4, sleeving and clamping a hose; 5-a guide rod; 6-rotating the sheet body; 7-a movable rotating shaft; 8-hinge rotating shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1:
the flow adjusting method of the peristaltic pump has the advantages of being capable of achieving a fine adjustment function and a continuous adjusting function.
The method comprises the following fine tuning steps:
the discharge end and the suction end of the hose outside the circular arc of the pump head are clamped, different forces are applied to the clamping position, the hose is stretched to change the tensioning degree of the hose between the two clamping positions, the inner diameter of the hose in the circular arc of the pump head is adjusted, and the purpose of fine adjustment of the flow of the peristaltic pump is achieved by changing the unit volume.
The flow fine-tuning function of the peristaltic pump can be finally realized through the method. Through actual tests, the flow speed of the peristaltic pump can be adjusted within a +/-6% adjusting range under the condition that the rotating speed of the peristaltic pump is unchanged, and any flow speed within the adjusting range can be set, so that stepless speed regulation is realized in the true sense, and the purpose of micro-adjustment of the flow of the peristaltic pump is achieved. Therefore, the peristaltic pump can adjust any flow and set any filling amount, and the flow and the filling amount can be consistent under the condition that a plurality of peristaltic pump heads are connected in series.
Further comprises a coarse adjustment step:
the flow of the peristaltic pump is roughly adjusted by a conventional method for adjusting the rotating speed of a driving disc, and the rough adjusting step and the fine adjusting step are combined to realize continuous adjustment of the flow of the peristaltic pump.
Wherein the fine tuning step comprises the following steps:
A. clamping and fixing one end of the hose, which is positioned outside the arc of the pump head;
B. the other end of the hose, which is positioned outside the arc of the pump head, is clamped, and the clamped position is used as a stress point to stretch.
Wherein, the one end and the other end refer to a suction end or a discharge end of the hose which is positioned outside the arc of the pump head.
The coarse adjustment step and the fine adjustment step are matched with each other, and the setting of the flow rate in any interval can be realized. The flow rate of the hoses with different inner diameters under the same pump head structure is different, and the adjusting method provided by the invention is realized by changing the inner diameter of the hose in the peristaltic pump head fundamentally, and the inner diameter of the hose is changed by changing the tension degree of the hose in the peristaltic pump from the realization structure aspect. Because the hose increases in length as it is pulled tight, while its internal diameter decreases with increasing length.
Example 2:
the flow adjusting method of the peristaltic pump has the advantages of being capable of achieving a fine adjustment function and a continuous adjusting function.
The method comprises the following fine tuning steps:
the discharge end and the suction end of the hose outside the circular arc of the pump head are clamped, different forces are applied to the clamping position, the hose is stretched to change the tensioning degree of the hose between the two clamping positions, the inner diameter of the hose in the circular arc of the pump head is adjusted, and the purpose of fine adjustment of the flow of the peristaltic pump is achieved by changing the unit volume.
The flow fine-tuning function of the peristaltic pump can be finally realized through the method. Through actual tests, the flow speed of the peristaltic pump can be adjusted within a +/-6% adjusting range under the condition that the rotating speed of the peristaltic pump is unchanged, and any flow speed within the adjusting range can be set, so that stepless speed regulation is realized in the true sense, and the purpose of micro-adjustment of the flow of the peristaltic pump is achieved. Therefore, the peristaltic pump can adjust any flow and set any filling amount, and the flow and the filling amount can be consistent under the condition that a plurality of peristaltic pump heads are connected in series.
Further comprises a coarse adjustment step:
the flow of the peristaltic pump is roughly adjusted by a conventional method for adjusting the rotating speed of a driving disc, and the rough adjusting step and the fine adjusting step are combined to realize continuous adjustment of the flow of the peristaltic pump.
Wherein the fine tuning step comprises the following steps:
the suction end and the discharge end of the hose, which are positioned outside the arc of the pump head, take the clamping position as a stress point, and simultaneously stretch towards the outside of the arc of the pump head.
The method can move the suction end and the discharge end of the hose which are positioned outside the arc of the pump head respectively in the directions away from each other so as to increase the relative distance between the clamping position of the suction end and the clamping position of the discharge end to achieve the purpose of tensioning the hose; the method can also use the driving disc as a fulcrum to move the suction end and the discharge end of the hose, which are positioned outside the arc of the pump head, towards the same direction at the same time, so as to simultaneously increase the relative distance between the clamping position of the suction end and the fulcrum and the relative distance between the clamping position of the discharge end and the fulcrum to achieve the purpose of tensioning the hose.
The coarse adjustment step and the fine adjustment step are matched with each other, and the setting of the flow rate in any interval can be realized. The flow rate of the hoses with different inner diameters under the same pump head structure is different, and the adjusting method provided by the invention is realized by changing the inner diameter of the hose in the peristaltic pump head fundamentally, and the inner diameter of the hose is changed by changing the tension degree of the hose in the peristaltic pump from the realization structure aspect. Because the hose increases in length as it is pulled tight, while its internal diameter decreases with increasing length.
Example 3:
a peristaltic pump based on the method for adjusting the flow rate of a peristaltic pump in embodiment 1 has the advantage of being able to perform a fine adjustment function and a continuity adjustment function, and is particularly configured as follows, as shown in fig. 1 and 2:
the structure of the embodiment is that an adjusting device is additionally arranged on the basis of the pump head of the original peristaltic pump; comprises a pump head and a hose; the outside of the pump head is provided with an adjusting mechanism, the hose bodies of the suction end and the discharge end of the hose, which are positioned outside the arc of the pump head, are respectively and fixedly connected with a hose sleeve clamp 4, the adjusting mechanism is detachably and fixedly connected with the hose sleeve clamp 4, and the adjusting mechanism controls the hose sleeve clamp 4 to move to stretch the hose.
Wherein, adjustment mechanism includes supporting pedestal 1, adjusting screw 2 and rotatory lamellar body 6.
A support base 1 position L-shaped base; the horizontal segment of support base 1 fixed connection is in the bottom of the outer wall of pump head, and the right-hand member of the horizontal segment of support base 1 can dismantle fixed connection with the hose sleeve card 4 of fixing at the discharge end of hose.
The rotary sheet body 6 is a thin plate part vertically arranged, and the rotary sheet body 6 is positioned at the right side of the vertical section of the support base 1 and above the horizontal section of the support base 1; the bottom of the rotary sheet body 6 is detachably and fixedly connected with a hose sleeve clamp 4 fixed at the suction end of a hose, the top end of the rotary sheet body 6 is hinged with the top end of the vertical section of the supporting base 1 through a hinge rotating shaft 8-bit shaft, and the axis of the hinge rotating shaft 8 is parallel to the rotating central line of the driving disc.
The left side of the rotary sheet body 6 and the left side of the vertical section of the supporting base 1 are respectively provided with a clamp, the clamp is provided with a movable rotating shaft 7 capable of rotating freely, and the two movable rotating shafts 7 are arranged in parallel with the hinge rotating shaft 8.
The left end of adjusting screw 2 adjusts the end promptly and offsets with setting up the activity pivot 7 on support base 1, and the right-hand member of adjusting screw 2 screw end promptly passes in proper order and sets up activity pivot 7, support base 1 on support base 1, sets up activity pivot 7 and the rotatory lamellar body 6 on rotatory lamellar body 6 to with the spiro union of rotatory lamellar body 6, the axis of adjusting screw 2 perpendicular to activity pivot 7's axis.
The pump head of the existing peristaltic pump does not have the function of micro-adjustment, and the adjusting device of the embodiment is additionally provided with an adjusting device on the basis of the pump head of the existing peristaltic pump, so that the existing peristaltic pump has the functions of micro-adjustment and continuous adjustment.
During adjustment, as the pump head of the peristaltic pump is fixed with the support base 1, the adjusting end of the adjusting screw rod 2 is rotated, and the rotating sheet body 6 rotates clockwise or anticlockwise around the hinge rotating shaft 8. Because the position of the peristaltic pump head and the support base 1 is relatively fixed, and the natural length of the hose between the two hose sleeve clamps 4 is unchanged, the hose can be tensioned or loosened when the rotary sheet body 6 runs clockwise or counterclockwise, and the purpose of flow regulation is achieved.
It should be noted that the specific structure and arrangement of the adjusting mechanism of this embodiment are only based on one implementation of the peristaltic pump flow adjusting method of embodiment 1, and other different structures can be designed according to the specific peristaltic pump type and the actual using conditions and requirements to perform the hose loosening or tightening function. The adjusting mode can be manual or can be achieved by a motor.
Example 4:
a peristaltic pump based on the method for adjusting the flow rate of a peristaltic pump in embodiment 2 has the advantage of being able to perform a fine adjustment function and a continuity adjustment function, and is particularly configured as follows, as shown in fig. 3 and 4:
this embodiment is a pump head with an adjustment device redesigned according to the peristaltic pump adjustment method,
comprises a pump head and a hose; the inside adjustment mechanism that is provided with of pump head, the hose lie in the suction end of pump head circular arc outside and the pipe shaft of discharge end respectively with a hose sleeve card 4 fixed connection, adjustment mechanism and hose sleeve card 4 detachable fixed connection, adjustment mechanism control hose sleeve card 4 removes and stretches the hose.
Wherein, adjustment mechanism includes supporting pedestal 1, adjusting screw 2, removes cassette 3 and guide bar 5.
The support base 1 is horizontally arranged and fixedly connected to the bottom of the pump head, and the movable clamping seat 3 is horizontally arranged, positioned above the support base 1 and positioned below the driving disc; the left end and the right end of the movable clamping base are respectively detachably and fixedly connected with the corresponding hose sleeve clamps 4.
Adjusting screw 2 is vertical to be set up, and its bottom is adjusted promptly and is held up with support base 1 and be located the pump head outside, and adjusting screw 2's screw section passes support base 1 and removal cassette 3 in proper order from bottom to top and with remove cassette 3 spiro union.
The movable clamping seat 3 and the hose sleeve clamp 4 fixedly sleeved on the hose realize indirect fixed connection with the hose, the movable clamping seat 3 moves up and down by rotating the adjusting screw rod 2, the tensioning degree of the hose between the hose sleeve clamps 4 is changed, and the inner diameter of the hose section between the hose sleeve clamps 4 is adjusted.
During adjustment, the upper half part of the pump head is a pump head structure of a common peristaltic pump, and the lower half part of the pump head is a hose adjusting device. When the adjusting screw rod 2 is rotated, the movable clamping seat 3 can move upwards or downwards along the direction of the guide rod 5, and because the position of a driving disk of the pump head is unchanged and the natural length of the hose between the hose sleeve clamps 4 is fixed, the hose can be loosened or tightened in the process that the movable clamping seat 3 moves upwards or downwards, and the purpose of flow adjustment is achieved.
It should be noted that the specific structure and arrangement form of the adjusting mechanism of this embodiment are only one implementation manner of the peristaltic pump flow rate adjusting method in embodiment 2, and other different structures can be designed according to the specific peristaltic pump type and the actual using conditions and requirements as long as the peristaltic pump flow rate adjusting method is satisfied; for example, the support base 1 is disposed on top of the pump head, and the movable cassette 3 is disposed below the support base 1. The adjusting mode can be manual or can be achieved by a motor.
When the peristaltic pump works, the change of the inner diameter of the hose is realized by adjusting the tightness degree of the hose positioned in the arc of the pump head, namely the working part of the peristaltic pump, and under the condition of a certain pump head structure, the smaller the pipe diameter of the hose is, the smaller the numerical value of the unit volume is; the larger the hose diameter, the larger the "volume per unit" value. Because the special elastic hose for the peristaltic pump has excellent elasticity, a large adjusting space can be provided by adjusting the tightness of the length hose, the unit volume can be changed slightly, and the continuity of flow adjustment is ensured. The minimum regulating quantity of 0.001g can be easily realized at the highest precision in the filling industry through testing, and the filling precision and the extremely convenient filling quantity setting can be well ensured; the flow consistency of a plurality of pump heads with the same type can be easily adjusted and realized; the invention can detect the flow periodically in the long-term continuous working occasion of the peristaltic pump, and can completely ensure the stability of the flow.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (4)
1. A peristaltic pump comprises a pump head and a hose; the method is characterized in that: the pump head is provided with an adjusting mechanism, and the adjusting mechanism is fixedly connected with the pipe bodies at two opposite ends of the hose, which are positioned outside the arc of the pump head, through a clamping piece; the adjusting mechanism controls the clamping piece to move to stretch the hose;
the adjusting mechanism comprises a supporting base (1), an adjusting screw rod (2) and a movable clamping seat (3), and the clamping piece is a hose sleeve clamp (4);
the hose sleeve clamps (4) are respectively fixedly sleeved on the hose bodies at the two opposite ends of the hose outside the arc of the pump head, the support base (1) is fixedly connected to the pump head, the two opposite ends of the movable clamp seat (3) are respectively and fixedly connected with the corresponding hose sleeve clamps (4), one end of the adjusting screw rod (2) is abutted against the support base (1), and the other end of the adjusting screw rod (2) sequentially penetrates through the support base (1) and the movable clamp seat (3) and is in threaded connection with the movable clamp seat (3);
or the adjusting mechanism comprises a supporting base (1), an adjusting screw rod (2) and a rotating sheet body (6), and the clamping piece is a hose sleeve clamp (4);
the supporting base (1) is fixedly connected with a pump head, one hose sleeve clamp (4) is fixedly connected with one end of the supporting base (1), the other hose sleeve clamp (4) is fixedly connected with one end of a rotating sheet body (6), and the other end of the rotating sheet body (6) is hinged with the other end of the supporting base (1) through a hinge rotating shaft (8);
the rotary sheet body (6) and the support base (1) are respectively provided with a movable rotating shaft (7) capable of freely rotating through a hoop in a clamping manner, and the two movable rotating shafts (7) are arranged in parallel with the hinge rotating shaft (8);
the one end of adjusting screw (2) offsets with setting up activity pivot (7) on support base (1), the other end of adjusting screw (2) passes in proper order and sets up activity pivot (7), support base (1) on support base (1), set up activity pivot (7) and rotatory lamellar body (6) on rotatory lamellar body (6) and with the axis of rotatory lamellar body (6) spiro union, the axis of axis perpendicular to activity pivot (7) of adjusting screw (2).
2. A peristaltic pump as claimed in claim 1, wherein: the adjusting mechanism further comprises a guide rod (5), one end of the guide rod (5) is fixedly connected to the supporting base (1), and the other end of the guide rod penetrates through the movable clamping seat (3).
3. A peristaltic pump as claimed in claim 2, wherein: support base (1), adjusting screw (2), removal cassette (3) and guide bar (5) set up in the pump head, adjusting screw (2) vertical setting.
4. A peristaltic pump as claimed in claim 1, wherein: support base (1), adjusting screw (2) and rotatory lamellar body (6) set up outside the pump head, support base (1) fixed connection is in the pump head outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710704141.5A CN107269504B (en) | 2017-08-16 | 2017-08-16 | Peristaltic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710704141.5A CN107269504B (en) | 2017-08-16 | 2017-08-16 | Peristaltic pump |
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| Publication Number | Publication Date |
|---|---|
| CN107269504A CN107269504A (en) | 2017-10-20 |
| CN107269504B true CN107269504B (en) | 2020-01-03 |
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| CN201710704141.5A Active CN107269504B (en) | 2017-08-16 | 2017-08-16 | Peristaltic pump |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113217360B (en) * | 2021-05-17 | 2022-10-21 | 保定雷弗流体科技有限公司 | Flow adjusting method for peristaltic pump |
| CN114110258B (en) * | 2021-11-19 | 2023-03-31 | 山东中保康医疗器具有限公司 | Blood pipeline attitude control device and blood separator with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL178711C (en) * | 1976-02-24 | 1986-05-01 | Gerritsen Jan Willem | HOSE PUMP AND A PUMP HOSE INTENDED FOR THIS. |
| WO2003106042A1 (en) * | 2002-06-13 | 2003-12-24 | Graco Minnesota Inc. | Adjustable flow texture sprayer with peristaltic pump |
| CN1512062A (en) * | 2002-12-31 | 2004-07-14 | 允 窦 | Novel adjustable creep pump |
| CN202125418U (en) * | 2011-07-08 | 2012-01-25 | 无锡市天利流体工业设备厂 | Squirming pump head capable of adjusting flow |
| CN202228318U (en) * | 2011-09-29 | 2012-05-23 | 无锡市天利流体工业设备厂 | Peristaltic pump head capable of adjusting gap between pressure tubes |
| CN202971123U (en) * | 2012-10-26 | 2013-06-05 | 北京众驰伟业科技发展有限公司 | Elastic pressure type bi-directional peristaltic pump system |
| CN203476665U (en) * | 2013-09-06 | 2014-03-12 | 保定纳通恒流泵制造有限公司 | Peristaltic pump head |
-
2017
- 2017-08-16 CN CN201710704141.5A patent/CN107269504B/en active Active
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| CN107269504A (en) | 2017-10-20 |
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Address after: Room 3-3-305, Guangyang Park, Baoding National University Science Park, 669 Yufeng Road, North Third Ring Road, Baoding City, Hebei Province, 071000 Patentee after: BAODING ZHUNZE PRECISION PUMP MANUFACTURING Co.,Ltd. Address before: 071000 104, District 4, Huazhuang village, damafang, GaoKai District, Baoding City, Hebei Province Patentee before: BAODING ZHUNZE PRECISION PUMP MANUFACTURING Co.,Ltd. |
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