CN112065695B

CN112065695B - Conveniently-disassembled combined extrusion pump and liquid supply system

Info

Publication number: CN112065695B
Application number: CN202010898746.4A
Authority: CN
Inventors: 宋恩民; 龙韵翔; 熊自立; 宋师伟
Original assignee: Wuhan Yiyongkang Medical Technology Co ltd
Current assignee: Wuhan Yiyongkang Medical Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2022-08-09
Anticipated expiration: 2040-08-31
Also published as: CN112065695A

Abstract

The invention provides a conveniently-disassembled combined extrusion pump and a liquid supply system, which comprise a shell, wherein a groove body is arranged on the shell, the groove body is provided with a side wall and a bottom wall along the length direction, two ends and the top of the groove body are open, and the groove body is used for placing a pipeline; and a telescopic head moving along the width direction of the tank body is arranged on the side wall of one side of the tank body and is connected with a driving device so as to drive the telescopic head to extrude the pipeline along the radial direction of the pipeline. A liquid supply system adopting the conveniently-disassembled combined extrusion pump is characterized in that a first check valve and a second check valve are arranged on a pipeline, and the liquid flow directions of the first check valve and the second check valve are the same; and the pipeline between the first one-way valve and the second one-way valve is used for being arranged in the groove body and can be extruded and deformed by the telescopic head. Through above scheme, the transport of liquid is realized to flexible head extrusion pipeline, and pipeline convenient to detach moreover, and pipeline and mechanical component separation can not take place the pollution.

Description

Conveniently-disassembled combined extrusion pump and liquid supply system

Technical Field

The invention relates to the field of medical pumps, in particular to a conveniently-disassembled combined extrusion pump and a liquid supply system.

Background

Most of the medical pumps in the market at present are diaphragm pumps or peristaltic pumps which are used for conveying liquid. The pipeline of the peristaltic pump is not easy to disassemble. The structure of the peristaltic pump head is shown in Chinese patent CN209671175U, namely a medical peristaltic pump head, wherein a plurality of rollers which are circumferentially and uniformly distributed are arranged on a main shaft, and concave holes and a pressure relief mechanism are arranged on a cylindrical surface, so that liquid can immediately stop flowing out when a motor stops rotating. This technical scheme can solve the liquid pollution problem, but peristaltic pump's pipeline and driving system are difficult to separate, and it is inconvenient to dismantle. In the existing diaphragm pump, the separation of liquid and mechanical elements cannot be realized, the liquid needs to be contacted with the diaphragm, and the disinfection is inconvenient. In order to avoid the liquid from being polluted in the medical system, the medical system can only be used once, and the use cost is too high.

Disclosure of Invention

The invention aims to provide a conveniently-disassembled combined extrusion pump and a liquid supply system, which solve the problems that a medical pump is not easy to disassemble or the conveyed liquid is easy to pollute and the like, and provide a novel pump which is easy to assemble and disassemble and a power system can not pollute the liquid for application scenes such as chemical experiments, food brewing and the like.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a conveniently-disassembled combined extrusion pump comprises a shell, wherein a groove body is arranged on the shell, the groove body is provided with a side wall and a bottom wall along the length direction, two ends and the top of the groove body are opened, and the groove body is used for placing a pipeline;

and a telescopic head moving along the width direction of the tank body is arranged on the side wall of one side of the tank body and is connected with a driving device so as to drive the telescopic head to extrude the pipeline along the radial direction of the pipeline.

In a preferred embodiment, the telescopic head extends along the axial direction of the pipe to expand the length of the extruded pipe.

In the preferred scheme, the lateral wall of one side opposite to the flexible head is provided with an arc-shaped recess arranged along the length, the width of the top opening of the groove body is slightly smaller than the diameter of the pipeline, and the width of the widest position of the arc-shaped recess is the same as the diameter of the pipeline, so that the pipeline is fixed.

In the preferred scheme, a fixing clip is arranged at the top of the groove body, and one end of the fixing clip is pivoted with the top of the groove body;

an open slot is arranged at the other end of the fixing clamp, and a limiting pin is arranged at the top of the groove body at the corresponding position of the open slot so as to lock the pipeline by the fixing clamp.

In a preferred scheme, the driving device is an air cylinder or a hydraulic cylinder.

In the preferred scheme, the driving device is a motor, a motor shaft of the motor is connected with a gear set, the gear set is connected with a crank rocker mechanism, a rocker of the crank rocker mechanism is connected with a sliding rod, and the sliding rod is connected with the telescopic head so as to drive the telescopic head to stretch.

In a preferred scheme, the driving device is a motor, a shell of the motor is fixedly connected with a fixed sleeve, the fixed sleeve is in sliding connection with a telescopic sleeve, a sliding block is arranged on the inner wall of the telescopic sleeve, a vertical sliding groove is formed in the outer wall of the fixed sleeve, and the sliding block is slidably positioned in the vertical sliding groove;

the inner wall of the telescopic sleeve is also provided with a cam groove, the motor shaft passes through the fixed sleeve and is fixedly connected with a cam pin, the cam pin is vertical to the axis of the motor shaft, and the cam pin is positioned in the cam groove.

In a preferred embodiment, the cam groove is a sinusoidal groove.

In a preferable scheme, an elastic pressing plate mechanism is further arranged on one side of the groove body and used for assisting the pipeline to recover and deform;

the structure of the elastic pressing plate mechanism is as follows: the pressing plate is pivoted with the pull rod pin, the pull rod pin is L-shaped or T-shaped, one rod of the pull rod pin penetrates through the spring and vertically extends into the shell on one side of the groove body, one end of the spring is limited by the end cover, the end cover is fixedly connected with the shell, the other end of the spring is limited by the end nut, the end nut is fixedly connected with the pull rod pin, the pressing plate covers the upper portion of the groove body during working, and when a pipeline is assembled and disassembled, the pressing plate is lifted to leave the top opening of the groove body.

In the preferred scheme, a working plane is arranged on the bottom surface of the pressure plate, and a loading plane is arranged on the side surface of the pressure plate close to the pull rod pin;

when the loading device works, the working plane is in contact with the top of the shell under the state of being tensioned by the spring, and when the pipeline is loaded and unloaded, the loading plane is in contact with the top of the shell under the state of being tensioned by the spring.

In a preferable scheme, a battery or a power supply is further arranged in the shell, and the battery or the power supply, the switch and the motor form a driving circuit.

A liquid supply system adopting the conveniently-disassembled combined extrusion pump is characterized in that a first check valve and a second check valve are arranged on a pipeline, and the liquid flow directions of the first check valve and the second check valve are the same;

and the pipeline between the first one-way valve and the second one-way valve is used for being arranged in the groove body and can be extruded and deformed by the telescopic head.

The invention provides a conveniently-disassembled combined extrusion pump and a liquid supply system. The invention overcomes the defects that a peristaltic pump pipeline is difficult to install and a diaphragm pump is easy to pollute liquid, and is ideal equipment for the field of non-contact pumping of liquid. Can be used in the medical field and also in the fields of food and chemical industry.

Drawings

The invention is further illustrated with reference to the following figures and examples:

fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a schematic view of a driving device of the present invention.

Fig. 4 is a schematic view of another preferred structure of the driving device of the present invention.

Fig. 5 is a schematic structural diagram of the elastic pressing plate mechanism of the invention during operation.

Fig. 6 is a schematic structural view of the elastic pressing plate mechanism of the present invention when loading and unloading a pipeline.

Fig. 7 is a schematic sectional view a-a of fig. 6.

Wherein: the device comprises a groove body 1, a telescopic head 2, a shell 3, a fixing clamp 4, a limiting pin 5, a motor 6, a fixing sleeve 7, a vertical sliding groove 71, a telescopic sleeve 8, a sliding block 81, a cam groove 82, a connecting rod 83, a switch 9, a battery 10, a pipeline 11, a first check valve 12, a second check valve 13, a liquid container 14, a motor shaft 15, a cam pin 151, a gear set 16, a crank rocker mechanism 17, a sliding rod 18, a pressing plate 19, a working plane 191, a loading plane 192, a pull rod pin 20, an end cover 21, a spring 22 and an end nut 23.

Detailed Description

Example 1:

as shown in fig. 1-2, a conveniently-disassembled combined extrusion pump comprises a housing 3, wherein a tank body 1 is arranged on the housing 3, the tank body 1 is provided with a side wall and a bottom wall along the length direction, two ends and the top of the tank body 1 are open, and the tank body 1 is used for placing a pipeline 11;

the side wall of one side of the tank body 1 is provided with a telescopic head 2 which moves along the width direction of the tank body 1, and the telescopic head 2 is connected with a driving device so as to drive the telescopic head 2 to extrude the pipeline 11 along the radial direction of the pipeline 11. With this structure, the pipeline 11 can be intermittently pressed, thereby facilitating the liquid delivery by the deformation of the pipeline.

In the preferred embodiment shown in fig. 1-2, the telescopic head 2 extends along the axial direction of the pipeline 11 to expand the length of the extruded pipeline 11. With this structure, the amount of liquid delivered per squeeze is increased.

In a preferred scheme, as shown in fig. 1, an arc-shaped recess is arranged along the length of the side wall opposite to the telescopic head 2, the width of the top opening of the tank body 1 is slightly smaller than the diameter of the pipeline 11, and the width of the widest position of the arc-shaped recess is the same as the diameter of the pipeline 11, so that the pipeline 11 can be fixed conveniently.

A further preferable scheme is as shown in fig. 1 and 2, a fixing clip 4 is arranged at the top of the tank body 1, and one end of the fixing clip 4 is pivoted with the top of the tank body 1;

an open slot is arranged at the other end of the fixing clamp 4, and a limiting pin 5 is arranged at the top of the groove body 1 at the corresponding position of the open slot so as to lock the pipeline 11 by the fixing clamp 4. Preferably, the number of the fixing clips 4 is two, and the fixing clips are respectively located at two ends of the tank body 1, so that the pipeline 11 is prevented from being separated from the tank body 1.

In a preferred scheme, the driving device is an air cylinder or a hydraulic cylinder. The air or hydraulic cylinders are not shown in the figures.

In a preferred embodiment, as shown in fig. 4, the driving device is a motor, a motor shaft of the motor is connected to a gear set, the gear set in this embodiment is a bevel gear set, the gear set is connected to a crank-rocker mechanism, a rocker of the crank-rocker mechanism is connected to a sliding rod 18, and the sliding rod 18 is connected to the telescopic head 2 to drive the telescopic head 2 to extend and retract. The sliding rod 18 is driven to reciprocate by the rotation of the motor shaft, so that the telescopic head 2 is driven to stretch and extrude the pipeline.

In a preferred scheme, as shown in fig. 3, the driving device is a motor 6, a housing of the motor 6 is fixedly connected with a fixed sleeve 7, the fixed sleeve 7 is slidably connected with a telescopic sleeve 8, a sliding block 81 is arranged on the inner wall of the telescopic sleeve 8, a vertical sliding groove 71 is arranged on the outer wall of the fixed sleeve 7, and the sliding block 81 is slidably located in the vertical sliding groove 71;

the inner wall of the telescopic sleeve 8 is also provided with a cam groove 82, the motor shaft 15 passes through the fixed sleeve 7 and is fixedly connected with a cam pin 151, the cam pin 151 is perpendicular to the axis of the motor shaft 15, and the cam pin 151 is positioned in the cam groove 82.

In a preferred embodiment, the cam slot 82 is a sinusoidal slot. With this structure, when the motor shaft 15 rotates, the cam pin 151 is located in the cam groove 82 to drive the telescopic sleeve 8 to move up and down, and the telescopic sleeve 8 can only reciprocate up and down along a straight line due to the sliding of the slider 81 in the vertical sliding groove 71.

In a preferable scheme, as shown in fig. 5-7, an elastic pressing plate mechanism is further arranged on one side of the tank body 1 and is used for assisting the pipeline 11 to recover and deform;

the structure of the elastic pressing plate mechanism is as follows: the pressing plate 19 is pivoted with the pull rod pin 20, the pull rod pin 20 is L-shaped or T-shaped, one rod of the pull rod pin 20 penetrates through the spring 22 and vertically extends into the shell 3 on one side of the groove body 1, one end of the spring 22 is limited by the end cover 21, the end cover 21 is fixedly connected with the shell 3, the other end of the spring 22 is limited by the end nut 23, the end nut 23 is fixedly connected with the pull rod pin 20, when the pressing plate 19 is used, the pressing plate 19 covers the groove body 1, and when the pipeline 11 is assembled and disassembled, the pressing plate 19 is lifted to enable the opening in the top of the groove body 1 to be formed.

In a preferred scheme, as shown in fig. 5-7, a working plane 191 is arranged on the bottom surface of the pressing plate 19, and a loading plane 192 is arranged on the side surface of the pressing plate 19 close to the pull rod pin 20;

in operation, the working plane 191 contacts the top of the housing 3 under the tension of the spring 22, and the loading plane 192 contacts the top of the housing 3 under the tension of the spring 22 when the pipeline 11 is loaded and unloaded.

From this structure, when pipeline 11 is by the extrusion deformation of flexible head 2, the deformation of pipeline 11 lifts clamp plate 19 simultaneously, and when flexible head 2 withdrawal, clamp plate 19 pushes down under the effect of spring 22, and the deformation of auxiliary line 11 resumes, and then the quick feed liquor of auxiliary line 11 to can promote the flexible speed of flexible head 2, and can not receive the restriction of pipeline 11 recovery rate.

In a preferred scheme, a battery 10 or a power supply is further arranged in the shell 3, and the battery 10 or the power supply, the switch 9 and the motor 6 form a driving circuit.

Example 2:

as shown in fig. 2, a liquid supply system using the above-mentioned detachable combined extrusion pump includes a liquid container 14, the liquid container 14 is communicated with a pipeline 11, a first check valve 12 and a second check valve 13 are arranged on the pipeline 11, and the liquid flow directions of the first check valve 12 and the second check valve 13 are the same;

the pipeline 11 between the first check valve 12 and the second check valve 13 is arranged in the groove body 1 and can be extruded and deformed by the telescopic head 2. With the structure, when the telescopic head is used, the pipeline 11 with the first one-way valve 12 and the second one-way valve 13 is connected with the liquid container 14, then the pipeline between the first one-way valve 12 and the second one-way valve 13 is clamped into the groove body 1, the switch 9 is started, and the telescopic head 2 reciprocates to extrude the pipeline 11. As shown in fig. 2, when the telescopic head 2 presses the pipeline 11, the first check valve 12 is opened, and the liquid in the pipeline 11 flows out from the first check valve 12. When the telescopic head 2 loosens the pipeline 11, the volume of the pipeline 11 is restored to generate negative pressure, the second one-way valve 13 is opened, and the liquid flows into the pipeline between the first one-way valve 12 and the second one-way valve 13 from the second one-way valve 13, so that the liquid is circularly conveyed in a one-way mode. The liquid container 14 includes a liquid bag and a liquid bottle. When a liquid bottle is used, an air inlet pipe needs to be inserted.

In the application scenario for anorectal irrigation, the outlet of the first one-way valve 12 is connected to an irrigation head, which extends into the anus, and the switch 9 is actuated, so that liquid from the liquid container 14 passes through the irrigation head and enters the anorectal for irrigation.

In the application scene for urinating, the export of first check valve 12 is connected with liquid container 14, and the import of second check valve 13 is connected with the catheter, and start switch 9, urine flows into liquid container 14 in second check valve 13 and first check valve 12 are passed through in proper order from the catheter to realize initiatively urinating, avoid the urine in the bladder to deposit.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims

1. A conveniently-disassembled combined extrusion pump is characterized in that: the pipeline cleaning device comprises a shell (3), wherein a groove body (1) is arranged on the shell (3), the groove body (1) is provided with a side wall and a bottom wall along the length direction, two ends and the top of the groove body (1) are open, and the groove body (1) is used for placing a pipeline (11);

a telescopic head (2) moving along the width direction of the tank body (1) is arranged on the side wall of one side of the tank body (1), and the telescopic head (2) is connected with a driving device so as to drive the telescopic head (2) to radially extrude the pipeline (11) along the pipeline (11);

a first check valve (12) and a second check valve (13) are arranged on the pipeline (11), and the liquid flow directions of the first check valve (12) and the second check valve (13) are the same;

the pipeline (11) between the first check valve (12) and the second check valve (13) is arranged in the tank body (1) and can be extruded and deformed by the telescopic head (2);

the side wall of one side opposite to the telescopic head (2) is provided with arc-shaped depressions arranged along the length, the width of the top opening of the tank body (1) is slightly smaller than the diameter of the pipeline (11), and the width of the widest position of the arc-shaped depressions is the same as the diameter of the pipeline (11) so as to fix the pipeline (11);

an elastic pressing plate mechanism is further arranged on one side of the tank body (1) and is used for assisting the pipeline (11) to recover and deform;

the structure of the elastic pressing plate mechanism is as follows: the pressure plate (19) is pivoted with a pull rod pin (20), the pull rod pin (20) is L-shaped or T-shaped, one rod of the pull rod pin (20) penetrates through a spring (22) and vertically extends into the shell (3) on one side of the groove body (1), one end of the spring (22) is limited by an end cover (21), the end cover (21) is fixedly connected with the shell (3), the other end of the spring (22) is limited by an end nut (23), the end nut (23) is fixedly connected with the pull rod pin (20), when the pressure plate works, the pressure plate (19) covers the upper part of the groove body (1), and when the pipeline (11) is assembled and disassembled, the pressure plate (19) is lifted to leave the opening at the top of the groove body (1);

a working plane (191) is arranged on the bottom surface of the pressure plate (19), a loading plane (192) is arranged on the side surface of the pressure plate (19) close to the pull rod pin (20),

during operation, the working plane (191) contacts the top of the housing (3) under the state of being tensioned by the spring (22), and when the pipeline (11) is assembled and disassembled, the loading plane (192) contacts the top of the housing (3) under the state of being tensioned by the spring (22).

2. The easy-to-detach type combination extrusion pump as set forth in claim 1, wherein: the telescopic head (2) extends along the axial direction of the pipeline (11) to expand the length of the extruded pipeline (11).

3. The easy-to-detach type combination extrusion pump as set forth in claim 1, wherein: a fixing clip (4) is arranged at the top of the tank body (1), and one end of the fixing clip (4) is pivoted with the top of the tank body (1);

an open slot is arranged at the other end of the fixing clamp (4), and a limiting pin (5) is arranged at the top of the groove body (1) at the position corresponding to the open slot so as to lock the pipeline (11) by the fixing clamp (4).

4. The easy-to-detach type combination extrusion pump as set forth in claim 1, wherein: the driving device is a cylinder or a hydraulic cylinder;

or the driving device is a motor, a motor shaft of the motor is connected with a gear set, the gear set is connected with a crank rocker mechanism, a rocker of the crank rocker mechanism is connected with a sliding rod (18), and the sliding rod (18) is connected with the telescopic head (2) so as to drive the telescopic head (2) to stretch.

5. The easy-to-detach type combination extrusion pump as set forth in claim 1, wherein: the driving device is a motor (6), a shell of the motor (6) is fixedly connected with a fixed sleeve (7), the fixed sleeve (7) is slidably connected with a telescopic sleeve (8), a sliding block (81) is arranged on the inner wall of the telescopic sleeve (8), a vertical sliding groove (71) is arranged on the outer wall of the fixed sleeve (7), and the sliding block (81) is slidably positioned in the vertical sliding groove (71);

the inner wall of the telescopic sleeve (8) is also provided with a cam groove (82), the motor shaft (15) passes through the fixed sleeve (7) and is fixedly connected with a cam pin (151), the cam pin (151) is vertical to the axis of the motor shaft (15), and the cam pin (151) is positioned in the cam groove (82);

the cam groove (82) is a sinusoidal groove.

6. The easy-to-detach type combination extrusion pump as set forth in any one of claims 1 and 5, wherein: a battery (10) or a power supply is also arranged in the shell (3), and the battery (10) or the power supply, the switch (9) and the motor (6) form a driving circuit.