CN220979812U

CN220979812U - Extrusion peristaltic pump

Info

Publication number: CN220979812U
Application number: CN202322472267.8U
Authority: CN
Inventors: 张斌; 程晓东; 王玉; 王瑞鹏; 张彦峰; 张小伶
Original assignee: Baoding Lead Fluid Technology Co ltd
Current assignee: Baoding Lead Fluid Technology Co ltd
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2024-05-17
Anticipated expiration: 2033-09-12

Abstract

The embodiments of the present specification disclose an extrusion peristaltic pump comprising: the hose pressing device comprises a shell, a transmission part, a working pressing block, a limiting plate and a stop valve, wherein the transmission part is arranged in the shell, the working pressing block, the limiting plate and the stop valve are arranged on a top plate of the shell, the working pressing block is movably connected with the shell, a hose is placed between the working pressing block and the limiting plate during working, and the transmission part drives the working pressing block to reciprocate along the transverse direction of the hose so as to squeeze the hose; the stop valve is arranged near two ends of the hose. The working briquetting of this scheme is the horizontal extrusion to the extrusion direction of hose, need not to open the limiting plate and can directly load and unload the hose, can increase and decrease the passageway number at will as required moreover.

Description

Extrusion peristaltic pump

Technical Field

The application relates to the technical field of peristaltic pumps, in particular to an extrusion peristaltic pump.

Background

Peristaltic pumps are like a peristaltic pump which clamps a fluid-filled hose with fingers, and the peristaltic pump is commonly used in the market in which a roller rotates to squeeze the hose to convey the fluid as the fingers slide forward in the tube, and the roller replaces the fingers. Fluid is pumped by alternately squeezing and releasing the flexible delivery hose of the pump.

The principle of the peristaltic pump is that stop valves are respectively arranged at two sides of a working extrusion block, and in order to ensure the tightness of a pipeline, the stop valve at one side of the pump is always in a closed state, so that inconvenience is caused to pipe loading and unloading.

Disclosure of utility model

In order to solve the above technical problems, the embodiments of the present specification are implemented as follows:

an extrusion peristaltic pump provided by an embodiment of the present disclosure includes: the hose pressing device comprises a shell, a transmission part, a working pressing block, a limiting plate and a stop valve, wherein the transmission part is arranged in the shell, the working pressing block, the limiting plate and the stop valve are arranged on a top plate of the shell, the working pressing block is movably connected with the shell, a hose is placed between the working pressing block and the limiting plate during working, and the transmission part drives the working pressing block to reciprocate along the transverse direction of the hose so as to squeeze the hose; the stop valve is arranged near two ends of the hose.

In one or more embodiments, the shut-off valve includes an inlet shut-off valve and an outlet shut-off valve, the inlet shut-off valve and the outlet shut-off valve being in linkage.

In one or more embodiments, the transmission component is a camshaft, and the cams of the camshaft are shaped differently.

In one or more embodiments, the stop valve includes a movable block and a fixed block, the fixed block is fixed on the top plate of the housing, and the movable block reciprocates in the direction of the fixed block under the drive of the transmission component.

In one or more embodiments, the fixed block includes a valve seat, a valve body, a button, a locking pin, and a spring;

the valve body is arranged inside the valve seat, the button is arranged on the valve body, the locking pin and the spring are arranged inside the valve body, the locking pin is arranged below the button, when the valve body works, the valve body is close to the front limiting plate of the valve seat, the locking pin is inserted into the pin hole of the valve seat, after the button is pressed down, the locking pin is retracted, and the valve body moves to the rear limiting plate of the valve seat under the action of the spring.

In one or more embodiments, the shape of the valve body near one end of the movable block is a tip protrusion, or the shape of the movable block near one end of the valve body is a tip protrusion.

In one or more embodiments, the peristaltic pump further comprises: and the pipe clamp is arranged at the outer side of the stop valve and used for fixing the hose.

In one or more embodiments, the pipe clamp includes: a fixed clip, a movable clip and a V-shaped reed; the fixing clamp is fixed on the shell; the fixed clamp is movably connected with the movable clamp through a pin shaft, one end of the V-shaped reed is fixed on the fixed clamp, and the other end of the V-shaped reed is fixed on the movable clamp.

In one or more embodiments, the working press block or the movable block is connected with a linear shaft through a guide seat and a linear bearing, the linear shaft is connected with a side plate of the shell, the linear shaft is arranged in parallel with the top plate, the guide seat and the linear shaft are arranged inside the shell, and a return spring is arranged between the linear shaft and the shell.

In one or more embodiments, the working press blocks are arranged in multiple groups, and multiple groups of working press blocks are arranged in parallel along the direction of the hose.

The above-mentioned at least one technical scheme that this description embodiment adopted can reach following beneficial effect:

1. The extrusion direction of the hose is horizontal extrusion, the hose can be directly assembled and disassembled without opening the limiting plate, and the number of channels can be increased or decreased at will according to the requirement.

2. The stop valve is arranged to be in a quick spring-open and reset structure, and when a button is pressed, the stop valve is quickly spring-open to release the hose; the valve body is shifted to the working position and then is automatically locked, and the stop valve enters the working state.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic view of the overall structure of an extrusion peristaltic pump according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the internal structure of the housing of FIG. 1 with portions broken away;

FIG. 3 is a schematic view of the internal structure of the housing of FIG. 1 with portions broken away;

FIG. 4 is a schematic overall structure of a single-channel peristaltic extrusion pump with a tube clamp;

FIG. 5 is a schematic view of the overall structure of a multi-channel peristaltic pump with a tube clamp;

FIG. 6 is a schematic view of the internal structure of a multi-channel peristaltic pump with a tube clamp;

FIG. 7 is a schematic illustration of a specific construction of a pipe clamp;

FIG. 8 is a schematic structural view of the inlet shutoff valve fixed block;

FIG. 9 is a partial structural cross-sectional view of the inlet shutoff valve mounting block;

FIG. 10 is a cross-sectional view of the inlet shutoff valve mounting block;

Reference numerals: 1. a driving motor; 2. an inlet stop valve fixed block; 3. an inlet stop valve movable block; 4. a limiting plate; 5. working pressing blocks; 6. an outlet stop valve fixing block; 7. an outlet stop valve movable block; 8. a pipe clamp; 9. a hose; 10. a housing; 11. a return spring; 12. a linear shaft; 13. a linear shaft mounting seat; 14. a cam shaft; 15. a guide seat; 21. a valve seat; 22. a rear limiting plate; 23. a valve body; 24. a button; 25. a front limiting plate; 26. a locking pin; 27. a spring; 81. a fixing clamp; 82. a movable clamp; 83. a pin shaft; 84. v-shaped reed.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

For the loading and unloading of convenient extrusion peristaltic pump hose, more efficient completion is traded the pipe, especially when multichannel is traded the pipe, this scheme has proposed a horizontal extrusion structure, need not to open briquetting (limiting plate) and just can directly put into the hose perpendicularly, can open the stop valve of closing fast when putting the pipe, and the stop valve resets fast after the hose is put.

The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

Example 1

As shown in fig. 1, the squeeze peristaltic pump includes: the device comprises a driving motor 1, an inlet stop valve, a limiting plate 4, a working press block 5, an outlet stop valve, a hose 9, a shell 10 and a transmission part; the inlet stop valve comprises an inlet stop valve fixed block 2 and an inlet stop valve movable block 3, and the outlet stop valve comprises an outlet stop valve fixed block 6 and an outlet stop valve movable block 7.

The inlet stop valve, the limiting plate 4, the working press block 5, the outlet stop valve and the hose 9 are arranged on the top plate of the shell 10, the inlet stop valve fixing block 2, the limiting plate 4 and the outlet stop valve fixing block 6 are fixedly connected with the top plate, and the working press block 5, the inlet stop valve moving block 3 and the outlet stop valve moving block 7 are movably connected with the top plate. The transmission part is arranged in the shell 10 and is used for driving the working press block 5, the inlet stop valve movable block 3 and the outlet stop valve movable block 7 to reciprocate.

As shown in fig. 2 and 3, the transmission part is a cam shaft 14, the driving motor 1 drives the cam shaft 14 to rotate, the guide seat 15 reciprocates along the horizontal direction under the action of the cam, and the guide seat 15 is arranged into three groups, and the inlet stop valve movable block 3, the working press block 5 and the outlet stop valve movable block 7 are respectively installed. The guide seat 15 moves linearly along the linear shaft 12 through a linear bearing, and can return rapidly under the action of the return spring 11. The linear shaft 12 is fixed to the side plate of the housing 10 by two-end linear shaft mounting seats 13.

The extrusion peristaltic pump that this scheme provided is the horizontal extrusion to the extrusion direction of hose, need not to open the limiting plate and can directly load and unload the hose, can increase and decrease the passageway number at will as required moreover (as shown in fig. 4 and fig. 5).

In addition, in order to realize sequential actions of the stop valve and the working press block, each cam of the cam shaft needs to be designed to ensure the working sequence of the peristaltic pump, wherein the inlet stop valve and the outlet stop valve can realize linkage. At this time, the shape of each cam of the camshaft is certainly different.

Example two

In order to better fix the hose, preventing it from slipping off when the shut-off valve is released, the solution is also provided with a pipe clamp 8 (as shown in figures 4 and 5) arranged outside the shut-off valve, fixed to the top plate of the housing 10, for fixing the hose. It should be noted that the tube clamp 8 may be provided on a single-channel peristaltic pump as in fig. 4, or on a multi-channel peristaltic pump as in fig. 5.

Optionally, in order to adapt to hoses with different sizes, the pipe clamp can be configured to be adaptive to the pipe diameter of the hose. Specifically, as shown in fig. 7, the pipe clamp 8 includes: a fixed clip 81, a movable clip 82 and a V-shaped reed 84. Wherein, the fixing clip 81 is fixed on the casing 10, the fixing clip 81 is detachably connected with the casing 10, specifically, a through hole can be arranged on the fixing clip 81, and the fixing clip 81 and the casing 10 are fixed by a screw.

In order to achieve the adaptability adjustment, the fixed clip 81 and the movable clip 82 are movably connected through a pin 83, and therefore, the fixed clip 81 and the movable clip 82 can rotate relatively. In order to fix the hose, the same side ends of the fixed clip 81 and the movable clip 82 are connected by a V-shaped spring 84, i.e., one end of the V-shaped spring 84 is fixed on the fixed clip 81, and the other end of the V-shaped spring 84 is fixed on the movable clip 82. The spring action of the V-shaped springs 84 ensures a reliable fixing of the hose clamp 8 to hoses of different diameters.

It should be noted that the end of the fixing clip 81 to which the housing 10 is fixed is the end near the V-spring 84.

In addition, in order to prevent the hose from slipping off, the top of one end of the fixed clip 81 and the movable clip 82 holding the hose may be provided in the shape of an inner protrusion to restrict the hose inside the fixed clip 81 and the movable clip 82.

Example III

As shown in fig. 8 to 10, the fixed block of the shut-off valve includes a valve seat 21, a valve body 23, a button 24, a locking pin 26, and a spring 27; wherein the valve seat 21 is a housing structure fixed to the top plate of the housing 10, and a part of the structure of the valve body 23 can be placed inside the valve seat 21. The middle of the valve body 23 is provided with a through hole for placing the locking pin 26, and correspondingly, the bottom of the valve seat 21 is also provided with a counter bore, and the locking pin 26 can be inserted. A button 24 is provided on the top of the valve body 23, and depressing the button 24 controls the position of the lock pin 26.

The spring 27 is disposed in a counter bore of the valve body 23 adjacent to the front limiting plate 25 of the valve seat 21, and can spring the valve body 23 back to the rear limiting plate 22 of the valve body 23 when the locking pin 26 is not inserted into the counter bore of the valve seat 21. For stable operation of the valve body 23, the spring 27 may be provided in a symmetrical structure.

When the valve is in operation, the valve body 23 is close to the front limiting plate 25 of the valve seat 21, the locking pin 26 is inserted into the counter bore of the valve seat 21, after the button 24 is pressed down, the locking pin 26 is retracted, the valve body 23 moves to the rear limiting plate 22 of the valve seat 21 under the action of the spring 27, and at the moment, the stop valve releases the hose, so that the hose can be conveniently assembled and disassembled; the valve body 23 is shifted to the front limiting plate 25, the locking pin 26 is inserted into the pin hole of the valve seat 21 to lock the valve body 23, and the stop valve is reset to the working state.

The extrusion pump transmission principle makes the extrusion pump have a stop valve to be in the closed state all the time when being in the shut-down state, and the hose is in the compressed state at this moment, and is very inconvenient when changing the dress hose. The quick pipe changing extrusion pump has the functions of quickly opening and resetting the stop valve, when the pipe is changed, a button on the stop valve for pressing the hose is pressed, the stop valve is sprung to release the hose, and at the moment, the hose can be easily taken down; after a new hose is placed to the pipe clamp, the stop valve is automatically locked when the stop valve is shifted to a working rotation state, and convenience and high efficiency are realized for replacement of the pipe of the extrusion pump, particularly replacement of the pipe of the multichannel extrusion pump.

In order to better stop the hose, the contact part of the valve body and the movable block can be made into a tip protrusion, specifically, the shape of the valve body close to the movable block is a tip protrusion, or the shape of the movable block close to the valve body is a tip protrusion, and of course, the valve body and the movable block are both made into a tip structure, so that the effect is better.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a device that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such device. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a device comprising the element.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and variations of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the application are to be included in the scope of the claims of the present application.

Claims

1. An extrusion peristaltic pump comprising: the hose pressing device comprises a shell, a transmission part, a working pressing block, a limiting plate and a stop valve, wherein the transmission part is arranged in the shell, the working pressing block, the limiting plate and the stop valve are arranged on a top plate of the shell, the working pressing block is movably connected with the shell, a hose is placed between the working pressing block and the limiting plate during working, and the transmission part drives the working pressing block to reciprocate along the transverse direction of the hose so as to squeeze the hose; the stop valve is arranged near two ends of the hose.

2. The peristaltic pump of claim 1, wherein the shut-off valve comprises an inlet shut-off valve and an outlet shut-off valve, the inlet shut-off valve and the outlet shut-off valve being in linkage.

3. The peristaltic pump of claim 1 wherein the drive member is a cam shaft, the cams of the cam shaft being differently shaped.

4. The peristaltic pump of claim 1 wherein the shut-off valve includes a movable block and a fixed block, the fixed block being secured to the top plate of the housing, the movable block being reciprocally movable in a direction toward the fixed block by the drive of the drive member.

5. The peristaltic pump of claim 4, wherein the fixed block comprises a valve seat, a valve body, a button, a locking pin, and a spring;

6. The peristaltic pump of claim 5 wherein the valve body has a pointed protrusion near an end of the movable block or the movable block has a pointed protrusion near an end of the valve body.

7. The peristaltic pump of claim 1, wherein the peristaltic pump further comprises: and the pipe clamp is arranged at the outer side of the stop valve and used for fixing the hose.

8. The peristaltic pump of claim 7, wherein the tube clamp comprises: a fixed clip, a movable clip and a V-shaped reed; the fixing clamp is fixed on the shell; the fixed clamp is movably connected with the movable clamp through a pin shaft, one end of the V-shaped reed is fixed on the fixed clamp, and the other end of the V-shaped reed is fixed on the movable clamp.

9. The extrusion peristaltic pump of claim 4 wherein the working block or the movable block is connected to a linear shaft by a guide holder and a linear bearing, the linear shaft is connected to a side plate of the housing, the linear shaft is disposed parallel to the top plate, the guide holder and the linear shaft are disposed inside the housing, and a return spring is disposed between the linear shaft and the housing.

10. The peristaltic pump of claim 1 wherein the working blocks are in a plurality of groups, the plurality of groups of working blocks being disposed in parallel along the direction of the hose.