CN220955992U - Replacement formula extrusion peristaltic pump - Google Patents

Abstract

The embodiments of the present specification disclose a replaceable squeeze 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 valves are arranged near two ends of the hose; the limiting plate is detachably connected with the shell. Limiting plate and casing in this scheme are detachable connection, but according to different flow transmission demands or different hose wall thickness, the stripper plate on the corresponding limiting plate of quick replacement need not to adjust, can ensure flow stability and rate of accuracy.

Description

Replacement formula extrusion peristaltic pump

Technical Field

The application relates to the technical field of peristaltic pumps, in particular to a replaceable 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.

When the extrusion pump works, the two stop valves are matched with the working pressing blocks to alternately extrude the hose to be completely closed, the pipe pressing quantity is insufficient and can not be completely closed, the service life of the pipe can be reduced and the hose can be damaged even if the pipe pressing quantity is excessive, and the pipe pressing gap of the extrusion pump pressure and the wall thickness of the hose are required to be matched.

Disclosure of utility model

An alternative squeeze peristaltic pump provided by embodiments 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 valves are arranged near two ends of the hose;

the limiting plate is detachably connected with the shell.

In one or more embodiments, the limiting plate includes: the fixing seat and the extrusion plate, be provided with the guide way on the fixing seat, the extrusion plate is provided with the guide rail, the guide rail of extrusion plate inserts in the guide way is fixed.

In one or more embodiments, the extrusion plates are replaceable components, and the extrusion plates with different specifications are manufactured according to the length or the thickness.

In one or more embodiments, the limiting plate further comprises: the reset device is connected to the fixed seat, the extruding plate is provided with a pin hole along the thickness direction, and a locking pin is arranged at a corresponding position of the fixed seat; when the reset device is pressed, the locking pin is retracted.

In one or more embodiments, the reset device includes: the body is a hollow cylinder, the body is in through threaded connection on the fixing base, the bottom of button penetrates inside the body, the top of button is worn out the top of body, the bottom of button is the wedge, the wedge with the first limit contact of V type spring leaf that the body is inside to be installed, the locking pin with the second limit fixed connection of V type spring leaf.

In one or more embodiments, the reset device further comprises: the limiting cover is arranged at the connecting part of the body and the button and is used for preventing the button from falling out of the body.

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

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 is driven by the transmission component to reciprocate along the direction of the fixed block.

In one or more embodiments, the fixing block includes a valve seat and a stop plate, a guide groove is provided on the valve seat, a guide rail is provided on the stop plate, the guide rail of the stop plate is inserted into the guide groove and fixed, and the stop plate is used together with the extrusion plate.

In one or more embodiments, further comprising: 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:

limiting plate and casing in this scheme are detachable connection, but according to different flow transmission demands or different hose wall thickness, the stripper plate on the corresponding limiting plate of quick replacement need not to adjust, can ensure flow stability and rate of accuracy.

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 whole structure of an alternative extrusion peristaltic pump according to the embodiments 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 a removable limiting plate;

FIG. 4 is an exploded view of the removable limiting plate;

FIG. 5a is a comparative view showing an increased thickness of the compression plate;

FIG. 5b is a comparative view showing the length of the compression plate after being increased;

FIG. 5c is a comparative view showing the thickness and length of the compression plate after both the thickness and length have been increased;

FIG. 6 is a schematic diagram of the overall structure of the resetting device;

FIG. 7 is a schematic view of the internal structure of the reset device;

FIG. 8 is a schematic diagram of the overall structure of a multichannel alternative extrusion peristaltic pump;

FIG. 9 is a schematic illustration of a specific construction of a pipe clamp;

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; 41. a fixing seat; 42. an extrusion plate; 43. a reset device; 431. wedge surface; 432. a limit cover; 433. a body; 434. a V-shaped spring piece; 435. a button; 44. a guide rail; 45. a pin hole; 46. a guide groove; 47. a locking pin; 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.

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 alternative extrusion peristaltic pump provided in this embodiment 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, 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, 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 quickly under 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 (as shown in fig. 8).

The limiting plate provided by the scheme can adjust the extruded length of the hose, so that the purpose of on-line flow regulation is achieved.

Under some scenes, the demand extrusion pump can realize different flow transmission or need use the hose of different pipe diameters and wall thickness, but different flow only fixed several, or only need fixed several pipe diameters and wall thickness's hose, this scheme designs the limiting plate of corresponding size according to fixed flow demand or the hose parameter design that selects for use, according to flow demand or hose use parameter select the limiting plate device of matching can, the limiting plate that this scheme provided can quick replacement, need not to debug the matching flow, directly change corresponding limiting plate and can use. Not only saving the cost, but also improving the working efficiency.

Specifically, in this scheme, limiting plate 4 is connected for dismantling with casing 10, can install the limiting plate of different specifications on casing 10 and realize the transmission demand of different flow.

In a specific embodiment, as shown in fig. 3 and 4, the limiting plate 4 may include: the fixing base 41 and the squeeze plate 42, the guide groove 46 is provided on the fixing base 41, the squeeze plate 42 is provided with the guide rail 44, and the guide rail 44 of the squeeze plate 42 is inserted into the guide groove 46 and fixed. The extrusion plate 42 is a replaceable component, and the extrusion plates 42 with different specifications are made according to the length or the thickness.

As shown in fig. 5a, the thickness direction of the squeeze plate 42 is changed, i.e., the depth of the squeeze tube 9 is changed, thereby changing the flow rate of the transfer fluid or adapting to the tube with different wall thickness.

As shown in fig. 5b, the length direction of the squeeze plate 42 is changed, i.e., the length of the squeeze tube 9 is changed, thereby changing the flow rate of the transfer fluid.

As shown in fig. 5c, the length and thickness of the squeeze plate 42 are varied, i.e., the length and depth of the squeeze tube 9 are also varied, thereby varying the flow rate of the transfer fluid or adapting to different wall thickness hoses.

It should be noted that when the squeeze plates 42 of the respective specifications are replaced in order to accommodate hoses of different wall thicknesses, the inlet shutoff valve and the outlet shutoff valve also need to be changed accordingly in order to be able to completely press the hose 9. For example, the inlet stop valve fixing block 2 and the outlet stop valve fixing block 6 may be configured similar to the limiting plate 4, that is, may include a fixing seat and a replaceable squeeze plate (as shown in fig. 1), and the corresponding squeeze plates may be replaced according to different needs.

Example two

In one or more embodiments, as shown in fig. 3 and 4, the limiting plate 4 may further include: the resetting device 43, the resetting device 43 is connected to the fixed seat 41 through threads, the extruding plate 42 is provided with a pin hole 45 along the thickness direction, and the fixed seat 41 is provided with a locking pin 47 at a corresponding position; when the reset device 43 is pressed, the locking pin 47 is retracted.

When the squeeze plate 42 is inserted into the fixing seat 41, the locking pin 47 automatically retracts under the pressure of the squeeze plate 42, and when the squeeze plate 42 reaches the working position, the locking pin 47 automatically stretches out and is inserted into the pin hole 45 to lock the squeeze plate 42; when the squeeze plate 42 needs to be disassembled, only the reset device 43 needs to be pressed down, and the squeeze plate 42 can be smoothly taken down.

Further, as shown in fig. 6 and 7, the reset device 43 may include: body 433 and button 435, body 433 are hollow cylinder, set up the screw thread on the face of cylinder, and body 433 passes through threaded connection on fixing base 41, and the inside of body 433 is penetrated to the bottom of button 435, and the top of body 433 is worn out at the top of button 435, and the bottom of button 435 is wedge 431. The body 433 is internally provided with a V-shaped spring piece 434, and the locking pin 47 and the V-shaped spring piece 434 are integrally formed. The wedge surface 431 contacts a first side of a V-shaped spring 434 mounted inside the body 433, and the locking pin 47 is fixedly connected to a second side of the V-shaped spring 434.

When the button 435 is pressed, the wedge surface 431 presses the V-shaped spring piece 434 so that the locking pin 47 is retracted, and when the button 435 is released, the locking pin 47 is extended under the self-elastic force of the V-shaped spring piece 434. Finally, the limit cover 432 is clamped on the body 433 to prevent the button 435 from falling out.

Example III

In order to better fix the hose, preventing the hose from slipping down when the shut-off valve is released, the solution is also provided with a pipe clamp 8 (as shown in fig. 8 and 9) 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. 8.

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. 9, 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.

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 (13)

1. A replaceable squeeze 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 valves are arranged near two ends of the hose;

the limiting plate is detachably connected with the shell.

2. The replacement squeeze peristaltic pump of claim 1, wherein the limiting plate comprises: the fixing seat and the extrusion plate, be provided with the guide way on the fixing seat, the extrusion plate is provided with the guide rail, the guide rail of extrusion plate inserts in the guide way is fixed.

3. The replaceable peristaltic pump of claim 2 wherein the squeeze plates are replaceable components, the squeeze plates being of different sizes in length or thickness.

4. The replacement squeeze peristaltic pump of claim 2, wherein the limiting plate further comprises: the reset device is connected to the fixed seat, the extruding plate is provided with a pin hole along the thickness direction, and a locking pin is arranged at a corresponding position of the fixed seat; when the reset device is pressed, the locking pin is retracted.

5. The replacement squeeze peristaltic pump of claim 4, wherein the reset means comprises: the body is a hollow cylinder, the body is in through threaded connection on the fixing base, the bottom of button penetrates inside the body, the top of button is worn out the top of body, the bottom of button is the wedge, the wedge with the first limit contact of V type spring leaf that the body is inside to be installed, the locking pin with the second limit fixed connection of V type spring leaf.

6. The replacement squeeze peristaltic pump of claim 5, wherein the reset means further comprises: the limiting cover is arranged at the connecting part of the body and the button and is used for preventing the button from falling out of the body.

7. The replacement squeeze 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.

8. The replaceable peristaltic pump of claim 2 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 the direction of the fixed block under the drive of the drive member.

9. The replaceable peristaltic pump of claim 8 wherein the fixed block includes a valve seat and a stop plate, the valve seat being provided with a guide slot, the stop plate being provided with a guide rail, the guide rail of the stop plate being inserted into the guide slot and secured, the stop plate being used with the compression plate.

10. The replacement squeeze peristaltic pump of claim 1, further comprising: and the pipe clamp is arranged at the outer side of the stop valve and used for fixing the hose.

11. The replacement squeeze peristaltic pump of claim 10, 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.

12. The replaceable peristaltic pump of claim 8 wherein the working block or the movable block is connected to a linear shaft by a guide seat through 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 seat and the linear shaft are disposed inside the housing, and a return spring is disposed between the linear shaft and the housing.

13. The replaceable 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.