阅读说明：本技术 蠕动泵的滑靴副挤压装置及蠕动泵 (Vice extrusion device of piston shoes and peristaltic pump of peristaltic pump ) 是由 张功华 武亚雄 张勇 唐明波 周鹏 程胜 于 2019-09-28 设计创作，主要内容包括：本发明的蠕动泵的滑靴副挤压装置,包括挤压滑块,驱动所述挤压滑块滑动的驱动机构,所述挤压滑块远离所述驱动机构的一端上设有在输液管横截面方向对输液管进行弧形挤压的挤压机构。本发明还公开了蠕动泵,包括如上所述蠕动泵的滑靴副挤压机构。本发明提供了蠕动泵的滑靴副挤压装置,驱动机构驱动挤压滑块滑动,从而使挤压滑块上的挤压机构在输液管横截面方向上对输液管进行弧形挤压。弧线挤压时,挤压机构对输液管的挤压逐渐增大,然后又逐渐减少,挤压过程具有过渡性,减少挤压时所产生的脉冲,避免刚性挤压对输液管产生损坏,也避免造成输液管中的物质造成破坏。(The piston shoe pair extrusion device of the peristaltic pump comprises an extrusion sliding block and a driving mechanism for driving the extrusion sliding block to slide, wherein an extrusion mechanism for performing arc extrusion on an infusion tube in the cross section direction of the infusion tube is arranged at one end of the extrusion sliding block, which is far away from the driving mechanism. The invention also discloses a peristaltic pump which comprises the piston shoe pair extrusion mechanism of the peristaltic pump. The invention provides a sliding shoe pair extrusion device of a peristaltic pump, wherein a driving mechanism drives an extrusion sliding block to slide, so that an extrusion mechanism on the extrusion sliding block performs arc extrusion on an infusion tube in the cross section direction of the infusion tube. When the arc extrusion, extrusion mechanism is crescent to the extrusion of transfer line, then reduces gradually again, and the extrusion process has transitivity, reduces the produced pulse when extruding, avoids rigid extrusion to produce the damage to the transfer line, also avoids causing the material in the transfer line to cause the destruction.)

1. Vice extrusion device of piston shoes of peristaltic pump, including extrusion slider (1), the drive extrusion slider (1) gliding actuating mechanism (11), its characterized in that: one end of the extrusion sliding block (1) far away from the driving mechanism (11) is provided with an extrusion mechanism (2) which extrudes the infusion tube in an arc shape in the cross section direction of the infusion tube.

2. The slipper secondary compression device of a peristaltic pump of claim 1, wherein: the extrusion mechanism (2) comprises a sliding shoe pair mechanism (3) which is pressed on the infusion tube by an arc surface, and a supporting device (4) which is used for placing the infusion tube by the arc surface and is matched with the sliding shoe pair mechanism (3) to extrude the infusion tube.

3. The slipper secondary compression device of a peristaltic pump of claim 2, wherein: the sliding shoe pair mechanism (3) comprises a sliding shoe pair extrusion assembly (31) which is hinged with the extrusion sliding block (1) and rotates relative to the extrusion sliding block (1).

4. A slipper secondary compression device for a peristaltic pump as set forth in claim 3, wherein: the sliding shoe pair extrusion assembly (31) comprises a rotating part (313) rotating relative to the extrusion sliding block (1), and a first contact end part (314) and a second contact end part (315) which extend towards the direction of the supporting device (4) and respectively extend outwards towards two sides of the rotating part (313) gradually are arranged on the rotating part (313).

5. The slipper secondary compression device of a peristaltic pump of claim 4, wherein: the distance from the first contact end part (314) to the rotation center of the rotating part (313) is larger than the distance from the second contact end part (315) to the rotation center of the rotating part (313), and a slipper arc surface (3121) for pressing on the infusion tube is arranged between the first contact end part (314) and the second contact end part (315).

6. A slipper secondary compression device for a peristaltic pump as set forth in claim 3, wherein: vice extrusion subassembly (31) of piston shoes includes vice extrusion head (311) of piston shoes, and locates the surrounding edge (312) of the vice extrusion head (311) periphery of piston shoes, be equipped with on surrounding edge (312) and be used for pressing piston shoes cambered surface (3121) on the transfer line, be equipped with on extrusion slider (1) with vice extrusion subassembly (31) articulated pivot (32) of piston shoes, be equipped with on extrusion slider (1) and be used for the restriction rotatory position's of the vice extrusion subassembly (31) of piston shoes swivelling chute (33).

7. The slipper secondary compression device of a peristaltic pump of claim 2, wherein: the supporting device (4) comprises a guide fixing plate (41), a guide contact surface (411) which is used for placing an infusion tube and is in a concave arc shape is arranged on the guide fixing plate (41), and the sliding shoe auxiliary mechanism (3) is rolled to the other side from one side of the infusion tube along the guide contact surface (411).

8. The slipper secondary compression device of a peristaltic pump of claim 7, wherein: the guide fixing plate (41) is provided with a limiting block (42) which is positioned on two sides of the sliding shoe pair mechanism (3) and used for limiting the sliding shoe pair mechanism (3) to rotate along the guide contact surface (411), and the limiting block (42) is provided with a limiting groove (43) used for limiting the infusion tube.

9. A peristaltic pump, characterized by: a slipper secondary compression device comprising a peristaltic pump as claimed in any one of claims 1 to 8.

10. A peristaltic pump as set forth in claim 9, wherein: the infusion tube fixing device is characterized by further comprising a pressing plate (5) used for fixing the infusion tube on the supporting device (4), a groove (412) is formed in the guide fixing plate (41), a slot (51) matched with the groove (412) and used for limiting the position of the infusion tube is formed in the pressing plate (5), and guide grooves (53) used for positioning the infusion tube are formed in the two ends of the pressing plate (5) and the slot (51) respectively.

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of fluid conveying equipment, in particular to a slipper pair extrusion device of a peristaltic pump and the peristaltic pump.

[ background of the invention ]

The peristaltic pump is a volume type special pump widely applied to the fields of chemical industry, food, medicine and the like, and is generally divided into a finger-shaped peristaltic pump and a disc-shaped peristaltic pump, wherein the working surface of the cylindrical structure is a cylindrical surface, a pump core is a cylinder, a series of rollers are arranged on the cylindrical surface, an elastic soft pump tube is placed in a working space formed by the cylindrical surface and a pump shell together, and the pump core extrudes the pump tube when rotating to enable the pump tube to form continuous peristalsis and push liquid to flow; the working space of the finger-shaped peristaltic pump is linear, a series of finger-shaped sliding blocks which are pushed by the cam group and arranged into a linear shape extrude the pump pipe to form the peristaltic action so as to push the liquid to flow. However, the pressing mechanism of the disk-shaped peristaltic pump has large pulse, and the rigid tooth sheet of the pressing mechanism of the finger-shaped peristaltic pump has large damage to the infusion tube and is easy to damage substances such as blood cells, blood fat, lipid and the like in the fluid.

[ summary of the invention ]

The invention provides the sliding shoe pair extrusion device of the peristaltic pump, which has a simple structure and a reasonable design, and aims to solve the technical problems that the extrusion mechanism causes large pulse, easily causes damage to a transfusion tube and easily damages substances in fluid.

The invention is realized by the following technical scheme:

the auxiliary extrusion device for the sliding shoe of the peristaltic pump comprises an extrusion sliding block and a driving mechanism for driving the extrusion sliding block to slide, wherein one end of the extrusion sliding block, which is far away from the driving mechanism, is provided with an extrusion mechanism for performing arc extrusion on an infusion tube in the cross section direction of the infusion tube.

According to the auxiliary slipper extrusion device of the peristaltic pump, the extrusion mechanism comprises an auxiliary slipper mechanism which is pressed on the infusion tube through an arc surface, and a supporting device which is used for placing the infusion tube through the arc surface and is matched with the auxiliary slipper mechanism to extrude the infusion tube.

According to the auxiliary sliding shoe squeezing device of the peristaltic pump, the auxiliary sliding shoe squeezing mechanism comprises an auxiliary sliding shoe squeezing assembly which is hinged with the squeezing slide block and rotates relative to the squeezing slide block.

The pair of piston shoe squeezing devices of the peristaltic pump comprises a rotating part rotating relative to the squeezing slider, and a first contact end part and a second contact end part which extend towards the direction of the supporting device and respectively extend towards two sides of the rotating part gradually are arranged on the rotating part.

In the above-described pair of piston shoe pressing devices for a peristaltic pump, the distance from the first contact end portion to the rotation center of the rotating portion is greater than the distance from the second contact end portion to the rotation center of the rotating portion, and a piston shoe curved surface for pressing against the infusion tube is provided between the first contact end portion and the second contact end portion.

As above the vice extrusion device of piston shoe of peristaltic pump, the vice extrusion subassembly of piston shoe includes the vice extrusion head of piston shoe, and locates the edge that surrounds of the vice extrusion head periphery of piston shoe, it is used for pressing the piston shoe cambered surface on the transfer line to surround the edge to be equipped with, be equipped with on the extrusion slider with the vice extrusion subassembly articulated pivot of piston shoe, be equipped with on the extrusion slider and be used for the restriction the rotatory position's of the vice extrusion subassembly of piston shoe swivelling chute.

According to the auxiliary slipper extrusion device of the peristaltic pump, the supporting device comprises the guide fixing plate, a concave arc-shaped guide contact surface used for placing the infusion tube is arranged on the guide fixing plate, and the auxiliary slipper mechanism is gradually rolled from one side of the infusion tube to the other side along the guide contact surface.

According to the auxiliary piston shoe extruding device of the peristaltic pump, the guide fixing plate is provided with the limiting blocks which are positioned on two sides of the auxiliary piston shoe mechanism and used for limiting the auxiliary piston shoe mechanism to rotate along the guide contact surface, and the limiting blocks are provided with the limiting grooves used for limiting the infusion tube.

The invention also discloses a peristaltic pump, which comprises the slipper pair extrusion device of the peristaltic pump.

The peristaltic pump further comprises a pressing plate for fixing the infusion tube on the supporting device, a groove is formed in the guide fixing plate, a slot which is matched with the groove and used for limiting the position of the infusion tube is formed in the pressing plate, and guide grooves for positioning the infusion tube are formed in the two ends of the pressing plate and the slot respectively.

Compared with the prior art, the invention has the following advantages:

the invention provides a sliding shoe pair extrusion device of a peristaltic pump, wherein a driving mechanism drives an extrusion sliding block to slide, so that an extrusion mechanism on the extrusion sliding block performs arc extrusion on an infusion tube in the cross section direction of the infusion tube. When the arc extrusion, extrusion mechanism is crescent to the extrusion of transfer line, then reduces gradually again, and the extrusion process has transitivity, reduces the produced pulse when extruding, avoids rigid extrusion to produce the damage to the transfer line, also avoids causing the material in the transfer line to cause the destruction.

The invention also provides a peristaltic pump comprising a slipper secondary compression device of the peristaltic pump. The piston shoe pair extrusion device is applied to the peristaltic pump, so that the pulse generated when liquid is extruded can be reduced, and the service life of the infusion tube can be prolonged.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of the construction of a peristaltic pump of the present invention;

FIG. 2 is a schematic view of the internal structure of the peristaltic pump of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken at B-B of FIG. 2;

FIG. 5 is an exploded view of the racking apparatus and platen of the present invention;

FIG. 6 is an exploded view of the slipper subassembly of the present invention.

[ detailed description ] embodiments

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

When embodiments of the present invention refer to the ordinal numbers "first", "second", etc., it should be understood that the words are used for distinguishing between them unless the context clearly dictates otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Vice extrusion device of piston shoe of peristaltic pump, including extrusion slider 1, the drive 1 gliding actuating mechanism 11 of extrusion slider, its characterized in that: one end of the extrusion sliding block 1, which is far away from the driving mechanism 11, is provided with an extrusion mechanism 2 which extrudes the infusion tube in an arc shape in the cross section direction of the infusion tube.

The embodiment provides a vice extrusion device of piston shoe of peristaltic pump, and actuating mechanism drive extrusion slider slides to make the extrusion mechanism on the extrusion slider carry out the arc extrusion to the transfer line in transfer line cross section direction. When the arc extrusion, extrusion mechanism is crescent to the extrusion of transfer line, then reduces gradually again, and the extrusion process has transitivity, reduces the produced pulse when extruding, avoids rigid extrusion to produce the damage to the transfer line, also avoids causing the material in the transfer line to cause the destruction.

Further, as a preferred embodiment of the present invention, the pressing mechanism 2 includes a pair of sliding shoe mechanisms 3 that press the infusion tube in a curved surface, and a supporting device 4 that presses the infusion tube by placing the infusion tube in a curved surface and cooperating with the pair of sliding shoe mechanisms 3. The infusion tube is placed on the cambered surface of the supporting device, and the extrusion mechanism is pressed on the infusion tube through the cambered surface to extrude the infusion tube. In this embodiment, the arc surface of the sliding shoe pair mechanism pushing against the infusion tube is a convex arc surface, and the arc surface of the supporting device for placing the infusion tube is a concave arc surface.

Further, as a preferred embodiment of the present invention, not limited thereto, an extrusion head photoelectric detection system is provided in the shoe auxiliary extrusion device, and a photoelectric signal is fed back to the drive mechanism control system, thereby facilitating timely adjustment of the extrusion operation. The extrusion heads with different arcs are replaced at different positions, so that the extrusion speed and the extrusion time with different degrees are realized. By changing the extrusion acceleration of the end section, the speed change effect of extrusion is realized, thereby generating mechanical waves.

Still further, as a preferred embodiment of the present solution, but not limited thereto, the shoe pair mechanism 3 includes a shoe pair pressing assembly 31 that is hinged to the pressing block 1 and rotates relative to the pressing block 1. In this embodiment, the infusion tube 6. Because the extrusion slide block reciprocates, the rolling of the infusion tube can be realized only by rotating the sliding shoe pair extrusion assembly relative to the extrusion slide block, and the rolling is carried out from one side of the infusion tube to the other side.

Further, as a preferred embodiment of the present invention, the shoe pair pressing unit 31 includes a rotating portion 313 that rotates relative to the pressing slider 1, and the rotating portion 313 is provided with a first contact end portion 314 and a second contact end portion 315 that extend in the direction of the holder 4 and gradually extend outward on both sides of the rotating portion 313. The rotating part is used for supplying the vice extrusion subassembly of boots to rotate on extrusion slider, and when extrusion slider moved toward the supporting device, first contact tip contacted with the supporting device earlier, then extrusion slider continued to move toward the supporting device, until the vice device of boots rotates second contact tip and supporting device contact along the supporting device.

Further, as a preferred embodiment of the present invention, the distance from the first contact end 314 to the rotation center of the rotating portion 313 is longer than the distance from the second contact end 315 to the rotation center of the rotating portion 313, and a shoe arc surface 3121 for pressing the infusion tube is provided between the first contact end 314 and the second contact end 315. The extrusion slider drives the vice extrusion subassembly of piston shoe and reciprocates, and when the extrusion slider moved down, because the distance of first contact tip to rotating part center of rotation is greater than the distance of second contact tip to rotating part center of rotation, so first contact tip earlier with the contact of direction fixed plate, the extrusion slider continues to move down, the cooperation of piston shoe cambered surface and direction contact surface makes the vice extrusion subassembly of piston shoe rotate to second contact tip and direction contact surface along the direction contact surface.

Further, as a preferred embodiment of the present invention, but not limited thereto, the auxiliary sliding shoe pressing assembly 31 includes an auxiliary sliding shoe pressing head 311 and a surrounding edge 312 disposed on the outer periphery of the auxiliary sliding shoe pressing head 311, the surrounding edge 312 is provided with a sliding shoe arc surface 3121 for pressing on an infusion tube, the pressing slider 1 is provided with a rotating shaft 32 hinged to the pressing slider 1 and the auxiliary sliding shoe pressing assembly 31, and the pressing slider 1 is provided with a rotating groove 33 for limiting the rotating position of the auxiliary sliding shoe pressing assembly 31. The surrounding edge is beneficial to increasing the contact area with the infusion tube, enhancing the extrusion effect, reducing the pressure on the infusion tube, reducing the abrasion of the infusion tube and prolonging the service life of the infusion tube. The rotating shaft is hinged with the extrusion sliding block and the sliding shoe auxiliary extrusion assembly, so that the sliding shoe auxiliary extrusion assembly rotates relative to the extrusion sliding block, the sliding shoe auxiliary extrusion assembly is arranged on the rotating groove, the rotating groove limits the rotating angle of the sliding shoe auxiliary extrusion assembly, and the sliding shoe auxiliary extrusion assembly is rolled to the other side from one side of the infusion tube.

Still further, as a preferred embodiment of the present solution, but not limited thereto, the driving mechanism 11 includes a crankshaft 111. In this embodiment, the crankshaft drives the plurality of extrusion sliding blocks to move in a sinusoidal reciprocating motion, the extrusion sliding blocks drive the sliding shoe pair device to reciprocate up and down, and when the sliding shoe pair device moves down, the extrusion is performed on the infusion tube, so that the liquid in the infusion tube moves towards the direction of the other extrusion sliding block, and the pumping effect is realized. The driving mechanism also comprises a motor, a cylinder and the like.

Still further, as a preferred embodiment of the present invention, but not limited thereto, the supporting device 4 includes the guide fixing plate 41, a concave arc-shaped guide contact surface 411 for placing the infusion tube is provided on the guide fixing plate 41, and the shoe pair mechanism 3 is gradually rolled from one side of the infusion tube to the other side along the guide contact surface 411. The extrusion slide block drives the auxiliary extrusion component of the sliding shoe to reciprocate up and down, the guide contact surface is a cambered surface with high two ends and low middle, the infusion tube is placed at the position with low cambered surface, when the extrusion slide block moves down, one end of the auxiliary extrusion component of the sliding shoe is firstly contacted with one side of the guide contact surface, the extrusion slide block continues to move down, and the auxiliary extrusion component of the sliding shoe is rotated to the other end of the auxiliary extrusion component of the sliding shoe along the guide contact surface to be contacted with the guide contact surface.

Further, as a preferred embodiment of the present invention, not limited thereto, the guide fixing plate 41 is provided with stoppers 42 which are positioned on both sides of the shoe pair mechanism 3 and which regulate the rotation of the shoe pair mechanism 3 along the guide contact surface 411, and the stoppers 42 are provided with stopper grooves 43 for limiting the position of the infusion tube. The limiting block is used for limiting the sliding shoe auxiliary mechanism to rotate along the guide contact surface. The limiting groove is used for limiting the position of the infusion tube and preventing the position of the infusion tube from moving too much when the sliding shoe auxiliary mechanism extrudes the infusion tube.

The embodiment also discloses a peristaltic pump, comprising the piston shoe pair squeezing device of the peristaltic pump.

The invention also provides a peristaltic pump comprising a slipper secondary compression device of the peristaltic pump. The application of the sliding shoe pair extrusion device on the peristaltic pump can reduce the pulse generated when the liquid is pushed and can also improve the service life of the infusion tube.

Further, as a preferred embodiment of the present invention, the infusion tube support device is not limited to the above, the infusion tube support device further includes a pressing plate 5 for fixing the infusion tube on the support device 4, the guide fixing plate 41 is provided with a groove 412, the pressing plate 5 is provided with a slot 51 which is engaged with the groove 412 and used for limiting the position of the infusion tube, and two ends of the pressing plate 5 and the slot 51 are respectively provided with a guide groove 53 for positioning the infusion tube. The slot is inserted into the groove to limit the infusion tube, and the pressing plate can be fixed on the guide fixing plate. The guide grooves are used for limiting the positions of the two ends of the infusion tube.

The working principle of the embodiment is as follows:

as shown in fig. 4, when the extrusion sliding block drives the sliding shoe pair extrusion assembly to move downwards, the sliding first contact end part firstly contacts with the guide contact surface, then the extrusion sliding block continues to move downwards, the sliding shoe pair extrusion assembly rolls along the guide contact surface, and the contact position of the sliding shoe cambered surface and the guide contact surface gradually moves from the left side to the right side, so that the infusion tube positioned in the middle of the cambered surface is rolled. After rolling, the sliding shoe auxiliary extrusion component is driven to move upwards, and the extrusion to the infusion tube is separated.

The embodiment provides a vice extrusion device of piston shoe of peristaltic pump, and actuating mechanism drive extrusion slider slides to make the extrusion mechanism on the extrusion slider carry out the arc extrusion to the transfer line in transfer line cross section direction. When the arc extrusion, extrusion mechanism is crescent to the extrusion of transfer line, then reduces gradually again, and the extrusion process has transitivity, reduces the produced pulse when extruding, avoids rigid extrusion to produce the damage to the transfer line, also avoids causing the material in the transfer line to cause the destruction.

This embodiment also provides a peristaltic pump including a slipper secondary compression device as described above. The piston shoe pair extrusion device is applied to the peristaltic pump, so that the pulse generated when liquid is extruded can be reduced, and the service life of the infusion tube can be prolonged.

The foregoing is illustrative of the embodiments provided in connection with the detailed description and is not intended to limit the disclosure to the particular forms set forth herein. Similar or identical methods, structures, etc. as used herein, or several technical deductions or substitutions made on the premise of the idea of the present application, should be considered as the protection scope of the present application.