CN219711765U

CN219711765U - Eccentric peristaltic pump

Info

Publication number: CN219711765U
Application number: CN202320111239.0U
Authority: CN
Inventors: 武运贤
Original assignee: Nanyang Dinghao Electronic Technology Co ltd
Current assignee: Nanyang Dinghao Electronic Technology Co ltd
Priority date: 2023-01-16
Filing date: 2023-01-16
Publication date: 2023-09-19
Anticipated expiration: 2033-01-16

Abstract

The utility model discloses an eccentric peristaltic pump, and relates to the technical field of mechanical water pumps. An eccentric peristaltic pump comprising: the device comprises a driving part, an eccentric assembly, a sealing pressure plate, a pump shell, a pump cover and a diaphragm; the driving piece is fixedly connected with the eccentric assembly, and the eccentric assembly is fixedly connected with the sealing pressure plate; the pump shell is fixedly connected with the pump cover, the sealing pressure plate is fixedly arranged between the pump shell and the pump cover, and the eccentric assembly is fixedly arranged in the pump shell; the diaphragm is fixedly arranged on the sealing pressure plate and arranged between the sealing pressure plate and the pump cover; the pump cover comprises a water delivery mechanism which is arranged at the inner side of the pump cover; when the driving piece operates, the driving piece drives the eccentric assembly to do eccentric motion, and then drives the sealing pressure plate, the diaphragm is extruded by the sealing pressure plate and the pump cover, and the medium is pumped through the water delivery mechanism. The eccentric peristaltic pump provided by the utility model can avoid the defects of damage to the pump pipe of the peristaltic pump, pipe replacement, short service life and the like.

Description

Eccentric peristaltic pump

Technical Field

The utility model relates to the technical field of mechanical water pumps, in particular to an eccentric peristaltic pump.

Background

Peristaltic pump is a new type of industrial pump, which is a product of modern industrial development, has self-priming function and strong self-priming capability. In peristaltic pumps, the pumped fluid is only in contact with the holes of the tube, thus eliminating the risk of the pump contaminating the fluid. Peristaltic pumps are therefore commonly used to pump sterile fluids and are therefore particularly well suited for use in the biopharmaceutical industry.

In peristaltic pumps, a compressible tube is squeezed between a roller and a rail on the arc of a circle, forming a seal at the point of contact. As the rollers advance along the tube, the seal also advances. After the roller passes, the tube returns to its original shape, creating a partial vacuum that is filled with fluid drawn from the suction port.

The mode that the roller drives the roller to squeeze the hose to enable liquid or other mediums in the hose to be squeezed and moved to realize work is generally to use the hose, the service life of the hose is limited, the hose is easy to damage due to long-term squeezing of the hose, the service life is short, the hose needs to be replaced after a period of use, and the hose replacement operation is troublesome and inconvenient to use.

Disclosure of Invention

The embodiment of the utility model aims to provide an eccentric peristaltic pump, which can avoid the defects of damage to a pump pipe of the peristaltic pump, pipe replacement, short service life and the like.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an embodiment of the present utility model provides an eccentric peristaltic pump comprising: the device comprises a driving part, an eccentric assembly, a sealing pressure plate, a pump shell, a pump cover and a diaphragm; the driving piece is fixedly connected with the eccentric assembly, and the eccentric assembly is fixedly connected with the sealing pressure plate; the pump shell is fixedly connected with the pump cover, the sealing pressure plate is fixedly arranged between the pump shell and the pump cover, and the eccentric assembly is fixedly arranged in the pump shell; the diaphragm is fixedly arranged on the sealing pressure plate and arranged between the sealing pressure plate and the pump cover; the pump cover comprises a water delivery mechanism, and the water delivery mechanism is arranged at the inner side of the pump cover; when the driving piece operates, the driving piece drives the eccentric assembly to do eccentric motion so as to drive the sealing pressure plate, and the diaphragm is extruded by the sealing pressure plate and the pump cover and pumps medium through the water delivery mechanism.

In some embodiments, the water delivery mechanism comprises: the water inlet, the water outlet and the water channel; the water inlet is arranged at one end of the water channel, and the water outlet is arranged at the other end of the water channel.

In some embodiments, the pump cap further comprises: a water retaining wall; the water retaining wall is arranged between the water inlet and the water outlet.

In some embodiments, the water delivery mechanism further comprises: a water inlet pipe and a water outlet pipe; the water inlet pipe is communicated with the water inlet, and the water outlet pipe is communicated with the water outlet.

In some embodiments, the sealing platen comprises: extruding the bulge; the shape of the extrusion bulge is matched with the shape of the water channel.

In some embodiments, the sealing platen comprises: a protruding rib; the pump cover includes: sealing grooves; the convex ribs are matched with the sealing grooves, and the convex ribs and the sealing grooves seal the diaphragm between the sealing pressure plate and the pump cover.

In some embodiments, further comprising: a fixing member; the fixing piece penetrates through the sealing pressure plate to fixedly connect the sealing pressure plate with the pump cover.

In some embodiments, the mount comprises: fixing the column; the fixed column is fixedly arranged between the fixed part and the pump shell.

In some embodiments, the driver comprises: an output shaft; the eccentric assembly includes: eccentric wheel and eccentric bearing; the eccentric wheel is fixedly connected with the output shaft, and the eccentric bearing is fixedly sleeved on the outer side of the eccentric wheel.

In some embodiments, further comprising: a diaphragm support; the diaphragm support is fixedly sleeved on the outer side of the eccentric bearing, and is fixedly connected with the sealing pressure plate.

According to the eccentric peristaltic pump provided by the utility model, the diaphragm is extruded by the sealing pressure plate, so that the diaphragm cannot be worn, the service life of the diaphragm can be prolonged, meanwhile, the tube does not need to be replaced frequently like a conventional peristaltic pump, the eccentric peristaltic pump can work for a long time, and larger flow is realized; different from the conventional diaphragm pump, the eccentric peristaltic pump is internally provided with a rocker which moves up and down, so that the vibration is low, and the noise is very low; the one-way valve in the conventional diaphragm pump is eliminated, so that the impurities in the form of overcrystallization particles and bundles can pass through even small-particle fruit-grain oranges.

Drawings

In order to more clearly illustrate the technical solutions of the present disclosure, the drawings that need to be used in some embodiments of the present disclosure will be briefly described below, and it is apparent that the drawings in the following description are only drawings of some embodiments of the present disclosure, and other drawings may be obtained according to these drawings to those of ordinary skill in the art. Furthermore, the drawings in the following description may be regarded as schematic illustrations, and are not limiting of the actual size of the products, the actual flow of the methods, etc. according to the embodiments of the present disclosure.

FIG. 1 is a schematic diagram of an eccentric peristaltic pump according to some embodiments of the present disclosure;

FIG. 2 is an exploded view of an eccentric peristaltic pump according to some embodiments of the present disclosure;

FIG. 3 is a second exploded view of an eccentric peristaltic pump according to some embodiments of the present disclosure;

FIG. 4 is a cross-sectional view of an eccentric peristaltic pump in accordance with some embodiments of the present disclosure;

FIG. 5 is a second cross-sectional view of an eccentric peristaltic pump according to some embodiments of the present disclosure;

FIG. 6 is a schematic illustration of a pump cap according to some embodiments of the present disclosure;

FIG. 7 is a second schematic structural view of a pump cap according to some embodiments of the present disclosure;

FIG. 8 is a schematic structural view of a sealing platen in accordance with some embodiments of the present disclosure;

fig. 9 is a schematic structural view of a fastener according to some embodiments of the present disclosure.

Detailed Description

The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by one of ordinary skill in the art based on the embodiments provided by the present disclosure are within the scope of the present disclosure.

Throughout the specification and claims, the term "comprising" is to be interpreted as an open, inclusive meaning, i.e. "comprising, but not limited to, unless the context requires otherwise. In the description of the present specification, the terms "one embodiment," "some embodiments," "example embodiments," "examples," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

An embodiment of the present utility model provides an eccentric peristaltic pump, as shown in fig. 1-3, comprising: the drive 1, the eccentric assembly, the sealing platen 3, the pump housing 4, the pump cover 5 and the diaphragm 6.

In some embodiments, the driver 1 is fixedly connected to an eccentric assembly, which is fixedly connected to the sealing platen 3.

In some examples, the drive 1 is a power source for powering the entire eccentric peristaltic pump.

Illustratively, the driving member 1 is a motor.

When the driving member 1 is operated, power is transmitted to the eccentric assembly and then to the sealing platen 3.

In some embodiments, the pump housing 4 and the pump cover 5 are fixedly connected, and the sealing platen 3 is fixedly disposed between the pump housing 4 and the pump cover 5.

In some examples, the pump housing 4 and the pump cover 5 are fixedly arranged at the output end of the driving part 1, the pump housing 4 and the pump cover 5 are connected through bolts, the sealing pressure plate 3 is arranged between the pump housing 4 and the pump cover 5, and the sealing pressure plate 3 can be pressed between the pump housing 4 and the pump cover 5.

In some embodiments, the eccentric assembly is fixedly disposed within the pump housing 4. During operation of the drive 1, the eccentric assembly moves within the pump housing 4, so that the pump housing 4 protects the eccentric assembly.

In some embodiments, the diaphragm 6 is fixedly disposed on the sealing platen 3 and between the sealing platen 3 and the pump cap 5.

The membrane 6 is illustratively made of a silicone material.

Since the seal platen 3 is disposed between the pump case 4 and the pump cover 5, and the pump case 4 and the pump cover 5 are connected by bolts, the diaphragm 6 can be pressed between the seal platen 3 and the pump cover 5.

In some embodiments, the pump cap 5 includes a water delivery mechanism disposed inside the pump cap 5.

In some examples, the diaphragm 6 is compressed between the sealing platen 3 and the pump cap 5 and is proximate to the water delivery mechanism.

In some embodiments, when the driving member 1 operates, the driving member 1 drives the eccentric assembly to make eccentric motion, so as to drive the sealing pressure plate 3, and the diaphragm 6 is pressed by the sealing pressure plate 3 and the pump cover 5, and pumps medium through the water delivery mechanism.

The driving piece 1 provides power and outputs the power to the eccentric assembly, the eccentric assembly is driven to do eccentric motion due to the eccentric structure of the eccentric assembly, the sealing pressure plate 3 fixedly connected with the eccentric assembly is driven to do eccentric motion, the diaphragm 6 is arranged between the sealing pressure plate 3 and the pump cover 5, the pump cover 5 does not move after the sealing pressure plate 3 moves, the diaphragm 6 is extruded by the sealing pressure plate 3 and forms sealing with a water delivery mechanism in the pump cover 5 at a contact point, the extruded contact point is sealed at two opposite sides, the sealing pressure plate 3 continuously rotates, media in a gap at the front end of the contact point are continuously extruded along the rotating direction, the rear end forms a vacuum state and sucks the media, and then the media are pumped through the water delivery mechanism.

In some embodiments, the water delivery mechanism comprises: the water inlet 51, the water outlet 52 and the water channel 53, the water inlet 51 is arranged at one end of the water channel 53, and the water outlet 52 is arranged at the other end of the water channel 53.

As shown in fig. 6-7, the pump cover 5 has a circular structure, and the water channel 53 is disposed inside the pump cover 5 and also has a circular structure, specifically a groove with a circular structure; the water inlet 51 and the water outlet 52 are respectively arranged at two ends of the water channel 53 and are communicated with the water channel 53. Water enters from the water inlet 51, passes through the water channel 53 and then flows out from the water outlet 52.

In some examples, as shown in fig. 6-7, the pump cap 5 further includes: a water blocking wall 54, the water blocking wall 54 being disposed between the water inlet 51 and the water outlet 52. In this way, when water enters through the water inlet 51, it can only flow to the water outlet 52 through the water channel 53, avoiding direct connection between the water inlet 51 and the water outlet 52.

In some examples, as shown in fig. 6-7, the water delivery mechanism further includes: a water inlet pipe 55 and a water outlet pipe 56, wherein the water inlet pipe 55 is communicated with the water inlet 51, and the water outlet pipe 56 is communicated with the water outlet 52. The water flow enters from the water inlet pipe 55 through the water inlet 51, passes through the water channel 53, flows out to the water outlet pipe 56 through the water outlet 52, and is discharged through the water outlet pipe 56.

In some examples, as shown in fig. 5, a water retaining wall 54 is provided between the inlet tube 55 and the outlet tube 56 to prevent water from flowing directly from the inlet tube 55 to the outlet tube 56.

In some examples, as shown in fig. 8, the sealing platen 3 includes: the pressing protrusion 31, the shape of the pressing protrusion 31 matches the shape of the waterway 53.

As shown in fig. 8, the shape of the extrusion protrusion 31 is a circular structure and protrudes from the surface of the sealing platen 3, the extrusion protrusion 31 is matched with the water channel 53, when the sealing platen 3 rotates, the extrusion protrusion 31 extrudes the membrane 6 and forms a seal with the water channel 53 at a contact point, the seal is synchronously performed along with the rotation of the sealing platen 3, the extruded membrane 6 returns to the original shape to form a partial vacuum, so that water flow draws the water channel 53 from the water inlet 51, fills the partial vacuum, pumps medium through the water channel 53, and enables the eccentric peristaltic pump to work.

In some embodiments, as shown in fig. 6-8, the sealing platen 3 includes: the protruding rib 32, the pump cover 5 includes: the seal groove 57, the protruding rib 32 and the seal groove 57 cooperate, and both seal the diaphragm 6 between the seal platen 3 and the pump cover 5.

The membrane 6 is illustratively of annular configuration.

As shown in fig. 8, the protruding ribs 32 protrude from the surface of the sealing platen 3, the sealing groove 57 is concavely formed on the inner side of the pump cover 5, and the shape of the protruding ribs 32 and the sealing groove 57 are the same, so that when the diaphragm 6 is arranged between the sealing platen 3 and the pump cover 5, the inner ring of the diaphragm 6 is sealed between the sealing platen 3 and the pump cover 5 through the protruding ribs 32 and the sealing groove 57, and water leakage is avoided when the diaphragm 6 is extruded.

In some examples, the sealing platen 3 further comprises: the circular protrusion 33, the pump cap 5 further includes: the annular groove 58, circular protruding 33 protrusion in the surface of sealing pressure disk 3, the annular groove 58 is sunken to be set up in the pump cover 5 inboard, and both shapes are the same, when diaphragm 6 set up between sealing pressure disk 3 and pump cover 5, seals the outer lane of diaphragm 6 between sealing pressure disk 3 and pump cover 5 through circular protruding 33 and annular groove 58, avoids taking place the phenomenon of leaking when extrudeing diaphragm 6.

In some embodiments, as shown in fig. 2-3, the eccentric peristaltic pump further comprises: and the fixing piece 7 penetrates through the sealing pressure plate 3, and the sealing pressure plate 3 is fixedly connected with the pump cover 5.

Illustratively, a circular hole 34 is arranged in the middle of the sealing pressure plate 3, a through hole 71 is arranged in the center of the fixing piece 7, a fixing hole 59 is arranged in the center of the pump cover 5, the fixing piece 7 penetrates through the circular hole 34 of the sealing pressure plate 3, a screw penetrates through the fixing piece 7 through the through hole 71 and is fixed in the fixing hole 59, the sealing pressure plate 3 is arranged between the fixing piece 7 and the pump cover 5, and then the sealing pressure plate 3 is fixedly connected with the pump cover 5 and compresses the diaphragm 6.

In some embodiments, the fixture 7 comprises: the fixing post 72, the fixing post 72 is fixedly provided between the fixing piece 7 and the pump housing 4.

As shown in fig. 2-3, the fixing member 7 is provided with a first limit groove 73, the pump housing 4 is provided with a second limit groove 41, and both ends of the fixing post 72 are respectively located in the first limit groove 73 and the second limit groove 41. In this way, the fixing post 72 defines the position of the fixing member 7, and when the fixing member 7 is fixed, the fixing member 7 can be prevented from rotating, and the installation of the fixing member 7 is prevented from being affected.

In some embodiments, as shown in fig. 4, the driving member 1 includes: the output shaft 11, the eccentric assembly includes: eccentric wheel 21, eccentric bearing 22, eccentric wheel 21 and output shaft 11 fixed connection, eccentric bearing 22 fixed cover locates the outside of eccentric wheel 21.

When the driving piece 1 operates, the output shaft 11 drives the eccentric wheel 21 to make eccentric motion, and then drives the eccentric bearing 22 to make eccentric motion.

In some examples, the eccentric peristaltic pump further comprises: the diaphragm support 8, the outside of eccentric bearing 22 is located to the fixed cover of diaphragm support 8, and diaphragm support 8 and sealed pressure disk 3 fixed connection.

The eccentric wheel 21 and the eccentric bearing 22 are arranged in the diaphragm support 8, and when the eccentric bearing 22 moves, the diaphragm support 8 is driven to do eccentric movement, and the diaphragm support 8 provides rotating force for the sealing pressure plate 3 so as to squeeze the diaphragm 6, so that the eccentric peristaltic pump works.

In some embodiments, as shown in fig. 1, the driving member 1 further includes: and the clamping ring 12 is fixedly arranged on the outer side of the driving piece 1 and used for fixing the driving piece 1.

Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. An eccentric peristaltic pump, characterized in that: comprising the following steps:

the device comprises a driving part, an eccentric assembly, a sealing pressure plate, a pump shell, a pump cover and a diaphragm;

the driving piece is fixedly connected with the eccentric assembly, and the eccentric assembly is fixedly connected with the sealing pressure plate;

the pump shell is fixedly connected with the pump cover, the sealing pressure plate is fixedly arranged between the pump shell and the pump cover, and the eccentric assembly is fixedly arranged in the pump shell;

the diaphragm is fixedly arranged on the sealing pressure plate and arranged between the sealing pressure plate and the pump cover;

the pump cover comprises a water delivery mechanism, and the water delivery mechanism is arranged at the inner side of the pump cover;

when the driving piece operates, the driving piece drives the eccentric assembly to do eccentric motion so as to drive the sealing pressure plate, and the diaphragm is extruded by the sealing pressure plate and the pump cover and pumps medium through the water delivery mechanism.

2. The eccentric peristaltic pump of claim 1, wherein,

the water delivery mechanism comprises: the water inlet, the water outlet and the water channel;

the water inlet is arranged at one end of the water channel, and the water outlet is arranged at the other end of the water channel.

3. The eccentric peristaltic pump of claim 2, wherein,

the pump cap further includes: a water retaining wall;

the water retaining wall is arranged between the water inlet and the water outlet.

4. The eccentric peristaltic pump of claim 2, wherein,

the water delivery mechanism further comprises: a water inlet pipe and a water outlet pipe;

the water inlet pipe is communicated with the water inlet, and the water outlet pipe is communicated with the water outlet.

5. The eccentric peristaltic pump of claim 2, wherein,

the sealing platen includes: extruding the bulge;

the shape of the extrusion bulge is matched with the shape of the water channel.

6. The eccentric peristaltic pump of claim 1, wherein,

the sealing platen includes: a protruding rib;

the pump cover includes: sealing grooves;

the convex ribs are matched with the sealing grooves, and the convex ribs and the sealing grooves seal the diaphragm between the sealing pressure plate and the pump cover.

7. The eccentric peristaltic pump of claim 1, further comprising:

a fixing member;

the fixing piece penetrates through the sealing pressure plate to fixedly connect the sealing pressure plate with the pump cover.

8. The eccentric peristaltic pump of claim 7, wherein,

the mounting includes: fixing the column;

the fixed column is fixedly arranged between the fixed part and the pump shell.

9. The eccentric peristaltic pump of claim 1, wherein,

the driving member includes: an output shaft;

the eccentric assembly includes: eccentric wheel and eccentric bearing;

the eccentric wheel is fixedly connected with the output shaft, and the eccentric bearing is fixedly sleeved on the outer side of the eccentric wheel.

10. The eccentric peristaltic pump of claim 9, further comprising:

a diaphragm support;

the diaphragm support is fixedly sleeved on the outer side of the eccentric bearing, and is fixedly connected with the sealing pressure plate.