CN217602892U - Large-traffic elasticity peristaltic pump - Google Patents

Abstract

The utility model provides a large-flow elastic peristaltic pump, which comprises a rotating shaft and a rotor assembly, wherein a guide supporting device is arranged on the rotating shaft, and the guide supporting device rotates along with the rotating shaft; the rotor assembly is arranged on the guide supporting device; the rotor assembly is elastically connected with the rotating shaft, and when the rotor assembly moves relative to the rotating shaft, the guide supporting device provides guide and support for the rotor assembly. The utility model provides a large-flow elastic peristaltic pump, the diameter of the rotor component is large; the number of rotor assemblies is large; the rotor assembly is elastically connected with the rotating shaft through groove guide and a spring; simple structure, with low costs, the flow is bigger, and the reliability is higher.

Description

Large-traffic elasticity peristaltic pump

Technical Field

The utility model relates to a biological cell handles technical field, especially relates to a large-traffic elasticity peristaltic pump.

Background

At present, when biological cells are treated, the technology of flowing and pumping liquid in a pipeline is involved, a peristaltic pump is often needed, and the pipeline is used for transferring liquid through bidirectional rotation of the peristaltic pump.

An elastic peristaltic pump already exists in the prior art, and mainly comprises a pump shell, an elastic pump head, a limiting wheel, a guide wheel, a spring, a screw, a hose, a rotor assembly and other parts as shown in fig. 1. The working principle is that the elastic pump head is driven to rotate by the motor, the rotor assembly extrudes the hose at the pressure point A and the pressure point B, and when the rotor assembly rotates clockwise, negative pressure generated in the hose enables liquid to move from the pressure point A to the pressure point B, so that the liquid is pumped. When the rotor assembly forms a pressure point with the hose, the relation between the thickness T of the hose and the wall thickness T of the hose is required as follows: t is less than or equal to 2T, so that the two side walls are tightly pressed when the hose at the pressing point is extruded to the middle, and no gap exists in the hose. The direction of motion of two springs is K and J, has certain elasticity when rotor subassembly and hose extrusion, and the deformation power that is equivalent to originally the rotor subassembly does all can act on the spring, "hard extrusion" of having avoided rotor subassembly and hose, has also avoided the hose to use in certain time and has had the risk of damage and then weeping.

However, under the condition that the rotating speed and the diameter of the hose are fixed, the diameter of the rotor assembly is phi 60mm, the number of pillows generated by one circle of rotation of the elastic pump head is 2, and the flow rate is small; the pillow of the utility model is a liquid bag sealed in the hose between two pressure points. The diameter of rotor subassembly is adjusting through the screw, the deviation appears easily, too big or undersize promptly, and hardly guarantee two rotor subassemblies about the center pin symmetry, the flow that will have the pump like this is inhomogeneous, the pulse stream that produces is also inhomogeneous, and in long-time operation, the screw can take place not hard up to a certain extent, lead to the diameter to be bigger and bigger, the rotor subassembly is in the extrusion in-process with the hose, frictional resistance increases, under the unchangeable condition of motor speed, the flow that the pump was got in same time further reduces. Meanwhile, although the limiting wheels and the guide wheels have a certain guiding function in the creeping rotation process, the actual function is not great.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, the utility model provides a large-traffic elasticity peristaltic pump. The utility model provides a large-traffic elasticity peristaltic pump, simple structure, it is with low costs, the flow is bigger, and the reliability is higher.

The utility model provides a technical scheme does:

the utility model provides a large-flow elastic peristaltic pump, which comprises a rotating shaft and a rotor component, wherein a guide supporting device is arranged on the rotating shaft, and the guide supporting device rotates along with the rotating shaft; the rotor assembly is arranged on the guide supporting device; the rotor assembly is elastically connected with the rotating shaft, and when the rotor assembly moves relative to the rotating shaft, the guide supporting device provides guide and support for the rotor assembly.

Furthermore, the guide supporting device is composed of two high manganese steel plates which are fixedly connected with the rotating shaft through screws.

Further, the rotor assembly is connected with the rotating shaft through a spring.

Further, the rotor assembly comprises a threaded shaft, a bearing adjusting ring and a roller shell, wherein the bearing and the bearing adjusting ring are directly installed on the threaded shaft, and the roller shell is connected with the threaded shaft through the bearing and the bearing adjusting ring.

Further, the rotor assembly further comprises a bracket; the bracket comprises a U-shaped frame; through holes are formed in two sides of the U-shaped frame, two ends of the threaded shaft penetrate through the through holes and then are fixedly connected with the high manganese steel ball through threads, and the roller shell is rotatably supported on the support.

Further, the bracket also comprises a connecting guide post; the connecting guide column is arranged on one side of the U-shaped frame; the connecting guide post is inserted into the spring, so that the rotor assembly and the rotating shaft are elastically connected in a reciprocating manner.

Furthermore, a groove is formed in the high manganese steel plate, and the high manganese steel ball is abutted to the groove.

Further, the width of the groove is smaller than the diameter of the high manganese steel ball.

Further, the pump shell comprises an inner cavity, and the rotating shaft is coaxially arranged in the inner cavity; the flexible pipe is tightly attached to the wall of the inner cavity, and two ends of the flexible pipe extend out of the pump shell.

Further, the roller shell is elastically abutted to the hose through the spring, and the roller shell and the hose are extruded to form a pressure point.

Compared with the prior art, the large-flow elastic peristaltic pump provided by the embodiment of the disclosure has the following beneficial effects:

the utility model provides a large-traffic elasticity peristaltic pump, the diameter of rotor subassembly can conveniently expand, makes the hose length increase in the elasticity peristaltic pump simultaneously, and then can increase the flow of elasticity peristaltic pump.

The utility model provides a large-flow elastic peristaltic pump, the number of rotor components is a plurality; the elastic peristaltic pump can generate a plurality of pillows when rotating for one circle, compared with the number of the pillows in the prior art, the volume of the fluid conveyed when the rotor assembly rotates for one circle is larger, and therefore the flow of the elastic peristaltic pump is increased.

The utility model provides a large-traffic elasticity peristaltic pump, rotor subassembly and rotation axis pass through slot direction and spring elastic connection's mode, need not the diameter of adjusting the rotor subassembly in the installation, have also avoided the rotor subassembly to have asymmetric possibility to the rotation center at the in-process of adjustment distance, and the reliability improves greatly.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the scope of the invention, as claimed.

Drawings

FIG. 1 is a schematic diagram of a prior art elastomeric peristaltic pump;

fig. 2 is a schematic structural diagram of a large-flow elastic peristaltic pump provided by an embodiment of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view taken along A-A of FIG. 2;

fig. 4 is a sectional view taken along B-B in fig. 3.

The device comprises a pump shell 10, a rotating shaft 20, a high manganese steel plate 30, a groove 301, a rotor assembly 40, a threaded shaft 401, a bracket 402, a bearing 403, a bearing adjusting ring 404, a roller shell 405, a high manganese steel ball 406, a spring 50 and a hose 60.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the following specific embodiments. It should be noted that the following described embodiments are exemplary only and are not to be construed as limiting the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection or electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The large flow elastic peristaltic pump provided by the present invention will be described in detail by specific embodiments as follows:

as shown in fig. 2-4, the present invention provides a large flow elastic peristaltic pump, which comprises a pump housing 10, a rotating shaft 20, a high manganese steel plate 30, a rotor assembly 40, a spring 50, a hose 60, and other parts.

The pump housing 10 is provided with a circular inner cavity in which the rotary shaft 20 is coaxially disposed. The hose 60 is disposed against the wall of the lumen and both ends of the hose 60 protrude from the pump housing 10.

The rotating shaft 20 is fixedly connected with two circular high manganese steel plates 30 through screws, a plurality of rotor assemblies 40 are arranged between the two high manganese steel plates 30, the number of the rotor assemblies can be selected according to actual working conditions, and the number of the rotor assemblies in the embodiment is preferably four. One end of the rotor assembly 40 is elastically connected to the rotation shaft 20 by a spring 50; the other end is in abutment with the hose 60.

The rotor assembly 40 includes a threaded shaft 401, a bracket 402, a bearing 403, a bearing adjustment ring 404, a roller housing 405, and a high manganese steel ball 406. A bearing 403 and a bearing adjustment ring 404 are directly mounted on the threaded shaft 401, and a roller housing 405 is provided on the threaded shaft 401 through the bearing 403 and the bearing adjustment ring 404.

The bracket 402 includes a U-shaped frame and a connecting guide post. Through holes are formed in two sides of the U-shaped frame, and two ends of the threaded shaft 401 penetrate through the through holes and are fixedly connected with the high manganese steel ball 406 through threads, so that the roller shell 405 is rotatably supported on the support 402. During rotation of the roller housing 405, the coaxial bearing 403 and the bearing adjustment ring 404 rotate together, reducing frictional resistance. The connection guide posts are inserted into the springs 50 to achieve an elastic connection that the rotor assembly 40 and the rotation shaft 20 can relatively reciprocate. While the roller housing 405 on the rotor assembly 40 abuts the hose 60 to form a pressure point.

Four grooves 301 are respectively and uniformly distributed on the two high manganese steel plates 30, the width of each groove 301 is smaller than the diameter of each high manganese steel ball 406, and the high manganese steel balls 406 at the two ends of the rotor assembly 40 are respectively abutted to the grooves 301 of the upper high manganese steel plate 30 and the lower high manganese steel plate 30. When the rotor assembly 40 elastically moves relative to the rotating shaft 20, the high manganese steel ball 406 slides in the groove 301, and the friction resistance is small; while the grooves provide support and guidance for rotor assembly 40 to prevent rotor assembly 40 from shifting or disengaging as it moves relative to rotating shaft 20. Because the high manganese steel ball 406 and the high manganese steel plate 30 are made of wear-resistant materials, namely high manganese steel, the elastic peristaltic pump can be ensured not to have large wear within the service life of 5 years, for example.

The utility model provides a large-traffic elasticity peristaltic pump, the diameter of rotor subassembly is bigger, the biggest distance between two rotor subassemblies 40 of symmetrical arrangement promptly, preferably 100mm. The diameter of the rotor assembly is increased, so that the length of the hose in the peristaltic pump is increased, and the volume of fluid conveyed when the rotor assembly 40 rotates for one circle is also larger, so that the flow rate of the elastic peristaltic pump is increased.

The utility model provides a large-flow elastic peristaltic pump, the number of rotor components is four; the elastic peristaltic pump can generate four pillows when rotating for one circle, and two pillows are added compared with the elastic peristaltic pump; the pillow of the utility model is a liquid bag sealed in the hose between two pressure points. As the number of "pillows" increases, the volume of fluid delivered by the rotor assembly 40 making one revolution also increases, thereby increasing the flow rate of the elastomeric peristaltic pump.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Claims (10)

1. A large-flow elastic peristaltic pump comprises a rotating shaft and a rotor assembly, and is characterized in that a guide supporting device is arranged on the rotating shaft and rotates along with the rotating shaft; the rotor assembly is arranged on the guide supporting device; the rotor assembly is elastically connected with the rotating shaft, and when the rotor assembly moves relative to the rotating shaft, the guide supporting device provides guide and support for the rotor assembly.

2. The high-flow elastic peristaltic pump according to claim 1, wherein the guide support means are two high manganese steel plates fixedly connected to the rotating shaft by screws.

3. The high flow elastomeric peristaltic pump of claim 2, wherein the rotor assembly is connected to the rotating shaft by a spring.

4. The high flow elastomeric peristaltic pump of claim 3, wherein the rotor assembly includes a threaded shaft, a bearing adjustment ring, and a roller housing, the bearing and bearing adjustment ring being mounted directly on the threaded shaft, the roller housing being connected to the threaded shaft by the bearing and bearing adjustment ring.

5. The high flow elastomeric peristaltic pump of claim 4, wherein the rotor assembly further comprises a bracket; the bracket comprises a U-shaped frame; through holes are formed in two sides of the U-shaped frame, two ends of the threaded shaft penetrate through the through holes and then are fixedly connected with the high manganese steel ball through threads, and the roller shell is rotatably supported on the support.

6. The high flow elastomeric peristaltic pump of claim 5, wherein the bracket further comprises a connecting guide post; the connecting guide column is arranged on one side of the U-shaped frame; the connecting guide post is inserted into the spring, so that the rotor assembly and the rotating shaft are elastically connected in a reciprocating manner.

7. The high-flow elastic peristaltic pump according to claim 6, wherein the high manganese steel plate is provided with a groove, and the high manganese steel ball abuts against the groove.

8. The high flow elastomeric peristaltic pump of claim 7, wherein a width of the groove is less than a diameter of the high manganese steel ball.

9. The high flow elastic peristaltic pump of claim 8, further comprising a pump housing including an inner cavity, the rotating shaft being coaxially disposed within the inner cavity; the flexible pipe is tightly attached to the wall of the inner cavity, and two ends of the flexible pipe extend out of the pump shell.

10. The high flow elastic peristaltic pump of claim 9, wherein the roller housing is elastically abutted by the spring against the hose, the roller housing being pressed against the hose to form a pressure point.

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