High-precision peristaltic pump, control system and control method thereof

Abstract

The invention relates to a high-precision peristaltic pump, a control system and a control method thereof, the high-precision peristaltic pump comprises a peristaltic assembly, a transmission assembly and a shell, and the transmission assembly comprises a transmission wheel, a transmission rod and a rotating frame; a plurality of extrusion columns are arranged on the rotating frame; the shell is provided with a plurality of concave parts which are used for reducing the space in the shell; a shaft core is arranged in the shell, and the shell comprises a first shell, a second shell and a third shell; the transmission rod drives the transmission wheel to move around the shaft core, so that the extrusion column extrudes the wriggling assembly to generate negative pressure, and fluid is pumped out. The transmission wheel and the fixing frame are integrally formed and are arranged on the shaft core to be positioned in the shell, so that the center distance of a transmission assembly can be better controlled, the assembly accumulated error is greatly reduced, the assembly precision and the transmission efficiency are improved, the transmission noise is reduced, and the service life is prolonged; and the shell is provided with the concave part, so that the ineffective space in the shell can be reduced, the parts are firmer after being assembled, the vibration is reduced, the stability is improved, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of peristaltic pumps, and more specifically, to a high-precision peristaltic pump, a control system and a control method thereof. Background Art

[0002] A peristaltic pump is a fluid transport device consisting of a driver, a pump head and a hose. The fluid is isolated in an elastic transport hose and is transported by alternately pressurizing and releasing the elastic transport hose. The fluid only contacts the hose and has the advantages of no pollution and good sealing.

[0003] The peristaltic pump in the prior art squeezes the hose by driving the transmission device, thereby pumping out the fluid in the hose. However, since the transmission device has many parts, there will be gaps and spaces after assembly. After long-term use, it will lead to a large cumulative assembly tolerance, causing the product to produce greater vibration and noise, affecting the stability of the pump head rotation and the service life. Summary of the invention

[0004] The technical problem to be solved by the present invention is that the transmission device of the existing peristaltic pump has many parts, and there will be gaps and spaces after assembly, which will lead to large cumulative assembly errors, causing vibration and noise in the product, affecting stability and service life. In view of the above-mentioned defects of the prior art, a high-precision peristaltic pump, control system and control method thereof are provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A high-precision peristaltic pump is constructed, wherein the pump comprises a peristaltic assembly, a transmission assembly and a housing, wherein the transmission assembly and the peristaltic assembly are respectively arranged in the housing, and the peristaltic assembly is arranged on one side of the transmission assembly; the transmission assembly comprises a transmission wheel, a transmission rod and a rotating frame, wherein the transmission wheel is fixedly connected to the rotating frame and is transmission-connected to the transmission rod; a plurality of extrusion columns are arranged on the rotating frame, and the peristaltic assembly is arranged around one side of the extrusion column; the housing is provided with a plurality of recessed parts, and the recessed parts are respectively recessed toward the housing to reduce the space in the housing; a shaft core is arranged in the housing, and the transmission wheel is sleeved on the outer side of the shaft core and is movably connected to the shaft core; the housing comprises a first housing, a second housing and a third housing, wherein the first housing and the third housing are relatively arranged on both sides of the second housing; the shaft core passes through the second housing, and one end is located in the first housing, and the other end is located in the third housing; the transmission rod drives the transmission wheel to move around the shaft core, so that the extrusion column squeezes the peristaltic assembly to generate negative pressure and pump out fluid.

[0007] Furthermore, the transmission wheel is provided with a through hole, the first shell and the third shell are respectively provided with fixing grooves, the shaft core passes through the through hole, and one end is located in the fixing groove of the first shell, and the other end is located in the fixing groove of the third shell.

[0008] Furthermore, an arc-shaped groove is provided on a side of the second shell facing the transmission rod, and the transmission rod is located in the arc-shaped groove.

[0009] Furthermore, the rotating frame is provided with a plurality of mounting holes and limiting holes, and the mounting holes correspond to the limiting holes respectively; mounting columns are respectively provided in the mounting holes, one end of the mounting column is located in the mounting hole, and the other end is located in the limiting hole; the limiting hole is provided with a limiting portion for limiting the mounting column on the rotating frame; the extrusion columns are respectively sleeved on the outside of the mounting columns and are located between the mounting holes and the limiting holes.

[0010] Furthermore, the second shell is provided with a plurality of buckles, the first shell is provided with buckle positions corresponding to the buckles, and the buckles are respectively engaged in the buckle positions; a plurality of positioning groups are provided between the second shell and the third shell; each of the positioning groups includes a positioning column and a positioning hole, the positioning column is provided on the second shell, the positioning hole is provided on the third shell, and is provided corresponding to the positioning column; the first shell is provided with a first sealing structure, and the second shell is provided with a second sealing structure; the first sealing structure is provided toward the second shell; when the buckle is located in the buckle position, the first sealing structure is located in the second shell; the second sealing structure is provided toward the third shell, and when the positioning columns are respectively located in the positioning holes, the second sealing structure is located in the third shell.

[0011] Furthermore, a driving member is provided on one side of the third shell, and a placement groove is provided on the side of the third shell facing the second shell, and the opening of the placement groove is conical; the second shell is provided with a protrusion corresponding to the opening, and the protrusion is located in the opening; the output shaft of the driving member is fixedly connected to the center hole of the transmission rod, and drives the transmission rod to rotate; the transmission rod and the transmission wheel are respectively provided with transmission parts, and the transmission parts are meshed with each other; the driving member drives the transmission rod to rotate, and drives the transmission wheel and the rotating frame to rotate.

[0012] Further, the peristaltic assembly includes a tube body disposed on the second housing and on one side of the extrusion column; the transmission rod rotates to drive the extrusion column to extrude the tube body; fixing blocks are respectively provided at both ends of the tube body, and the second housing is provided with corresponding clamping positions for the fixing blocks; the fixing blocks are respectively engaged in the clamping positions; a plurality of fixing bars are respectively provided in the clamping positions, and the fixing bars are arranged oppositely; a plurality of fixing surfaces are provided on the fixing blocks, and the fixing bars are respectively in contact with the fixing surfaces.

[0013] Further, a flexible layer is provided on the outer side of the extrusion column to reduce vibration and noise.

[0014] The present invention also provides a control system for a high-precision peristaltic pump, which includes a driving member for driving the transmission rod to rotate; a control module electrically connected to the driving member and used for controlling the driving member; a sensor disposed on the tube body or the extrusion column and electrically connected to the control module; and an alarm module for receiving a trigger signal and emitting an alarm.

[0015] The present invention also provides a control method for a control system of a high-precision peristaltic pump, including the following steps:

[0016] Obtain the real-time pressure data of the peristaltic pump through a plurality of preset sensors;

[0017] Monitor whether the real-time pressure data is within a preset pressure threshold range;

[0018] If so, transmit the real-time pressure data to a preset control module, and control a preset driving member through the control module to adjust the parameters of the peristaltic pump; wherein, the parameters include extrusion frequency, extrusion force, and pump speed;

[0019] If not, trigger a preset alarm module to emit an alarm.

[0020] The beneficial effects of the present invention are as follows: By integrally forming the transmission wheel and the fixing frame and positioning them on a shaft core in the housing, the center distance of the transmission assembly can be better controlled, the cumulative assembly tolerance can be greatly reduced, the assembly accuracy and transmission efficiency can be improved, the transmission noise can be reduced, and the service life can be increased; and the housing is provided with a recessed portion, which can reduce the ineffective space in the housing, make the components more firmly assembled after assembly, reduce vibration, and improve stability and service life. Description of the Drawings

[0021] Figure 1 is an exploded view of a high-precision peristaltic pump in an embodiment of the present invention;

[0022] Figure 2 is a three-dimensional schematic diagram of the third housing in an embodiment of the present invention;

[0023] Figure 3 is a schematic top view of a high-precision peristaltic pump in one embodiment of the present invention;

[0024] Figure 4 The present invention Figure 3 Schematic cross-sectional view at AA in the middle;

[0025] Figure 5 is a three-dimensional schematic diagram of a rotating frame in one embodiment of the present invention;

[0026] Figure 6 A three-dimensional schematic diagram of another angle of the rotating frame in one embodiment of the present invention;

[0027] Figure 7 is a three-dimensional schematic diagram of a second housing in one embodiment of the present invention;

[0028] Figure 8 This is an overall structural diagram of a high-precision peristaltic pump in one embodiment of the present invention;

[0029] Fig. 9 is another exploded schematic diagram of a high-precision peristaltic pump in one embodiment of the present invention;

[0030] Fig.10 is a three-dimensional schematic diagram of a first shell in one embodiment of the present invention;

[0031] Fig.11 is a three-dimensional schematic diagram of the second housing from another angle in one embodiment of the present invention;

[0032] Fig.12 is a three-dimensional schematic diagram of a fixing block in one embodiment of the present invention;

[0033] Fig.13 It is a structural schematic diagram of a control system of a high-precision peristaltic pump in one embodiment of the present invention;

[0034] Fig.14 It is a flow chart of the steps of a control method of a control system of a high-precision peristaltic pump in one embodiment of the present invention.

[0035] Explanation of reference numerals: peristaltic component 1, transmission component 2, shell 3, transmission wheel 201, transmission rod 202, rotating frame 203, shaft core 301, extrusion column 204, recessed portion 302, first shell 303, second shell 304, third shell 305, through hole 205, fixing groove 306, arc-shaped groove 307, mounting hole 308, mounting column 309, limiting hole 310, limiting portion 311, buckle 312, buckle position 313, positioning group 314, positioning column 315, positioning hole 316, first sealing structure 317, second sealing structure 318, driving member 319, placement groove 320, opening 330, protrusion 331, transmission portion 321, tube body 101, fixing block 102, clamping position 322, fixing strip 323, fixing surface 103, control module 4, sensor 5, alarm module 6. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] Please refer to Figure 1 The present invention proposes a high-precision peristaltic pump, including a peristaltic component 1, a transmission component 2 and a housing 3, wherein the transmission component 2 and the peristaltic component 1 are respectively arranged in the housing 3, and the peristaltic component 1 is arranged on one side of the transmission component 2; the component includes a transmission wheel 201, a transmission rod 202 and a rotating frame 203, wherein the transmission wheel 201 is fixedly connected to the rotating frame 203 and is transmission-connected to the transmission rod 202; a plurality of extrusion columns 204 are arranged on the rotating frame 203, and the peristaltic component 1 is wound around one side of the extrusion columns 204; the housing 3 is provided with a plurality of recessed portions 302, and the recessed portions 302 are respectively recessed toward the inside of the housing 3, so as to reduce the pressure of the housing 3. The shell 3 is provided with an axis core 301, and the transmission wheel 201 is sleeved on one side of the axis core 301 and movably connected with the axis core 301; the shell 3 includes a first shell 303, a second shell 304 and a third shell 305, and the first shell 303 and the third shell 305 are relatively arranged on both sides of the second shell 304; the axis core 301 passes through the second shell 304, and one end is located in the first shell 303, and the other end is located in the third shell 305; the transmission rod 202 drives the transmission wheel 201 to move around the axis core 301, so that the extrusion column 204 squeezes the peristaltic component 1 to generate negative pressure and pump out the fluid.

[0038] In this embodiment, the rotating frame 203 is integrally formed with the transmission wheel 201 and is installed in the housing 3 through the shaft core 301, so that the positioning is more accurate, and the center distance of the transmission wheel 201 can be accurately controlled, which is conducive to improving the transmission efficiency of the transmission wheel 201, reducing the cumulative assembly tolerance, and improving the assembly accuracy. In a specific embodiment, the transmission wheel 201 is a gear, and the rotating frame 203 is installed through the shaft core 301, which can reduce the linear speed of the rotating frame 203 and the gear shaft, avoid friction heating, and improve reliability. A plurality of extrusion columns 204 are provided on the rotating frame 203, and because the rotating frame 203 and the transmission wheel 201 are integrally formed, the extrusion columns 204 can alternately squeeze and release the tube body 101 in the peristaltic component under the drive of the transmission rod 202 to transport the fluid. The extrusion column 204 can be fixed on the rotating frame 203, or it can be rotatably connected to the rotating frame 203. Preferably, the rotatable connection between the extrusion column 204 and the rotating frame 203 can reduce wear and noise and increase the service life.

[0039] Further, such as Figure 2 As shown, the shell 3 is provided with a plurality of recessed portions 302, and the recessed direction of the recessed portions 302 is toward the inside of the shell 3, which can reduce the redundant space inside the shell 3, improve the assembly efficiency, reduce the assembly cost and material cost, make the overall volume of the product smaller, make the components inside the shell 3 more tightly connected, facilitate the control of concentricity, and improve the stability of the product.

[0040] Furthermore, since the rotating frame 203 and the driving wheel 201 are one component, the total height of the housing 3 is reduced, the redundant space is reduced, the product volume is reduced, the components are more tightly assembled, the vibration is reduced, and the stability and service life are improved.

[0041] More specifically, when the driving member 319 is powered on, the transmission rod 202 fixed to the output shaft of the driving member 319 rotates, and the transmission rod 202 drives the rotating frame 203 to rotate. During this period, the squeezing column 204 provided on the rotating frame 203 squeezes the tube body 101, sucks the liquid from one end, and then outputs it from the other end, thereby realizing the fluid transportation. In addition, the flow rate of the peristaltic pump is determined by the rotation speed of the rotating frame 203, the size of the tube body 101, the number of squeezing columns 204, and the gap between the squeezing columns 204 and the rotating frame 203.

[0042] In one embodiment, the transmission wheel 201 is provided with a through hole 205, the first shell 303 and the third shell 305 are respectively provided with a fixing groove 306, the shaft core 301 passes through the through hole 205, and one end is located in the fixing groove 306 of the first shell 303, and the other end is located in the fixing groove 306 of the third shell 305.

[0043] Specifically, Figure 4As shown, the housing 3 includes a first housing 303, a second housing 304, and a third housing 305. The first housing 303 and the third housing 305 are oppositely arranged on both sides of the second housing 304. As Figure 5 shown, the transmission wheel 201 is provided with a through hole 205 for the shaft core 301 to pass through and fix the transmission wheel 201. As Figure 1 and Figure 4 shown, the first housing 303 and the third housing 305 are respectively provided with fixing grooves 306, and the fixing groove 306 of the first housing 303 and the fixing groove 306 of the third housing 305 are oppositely arranged. One end of the shaft core 301 is located in the fixing groove 306 of the first housing 303, and the other end is located in the fixing groove 306 of the third housing 305. The fixing groove 306 can fix the shaft core 301 in the housing 3. During assembly, taking the shaft core 301 as the positioning shaft can make the peristaltic pump more accurately positioned.

[0044] Please refer to Figure 4 and Figure 7 , on the side of the second housing 304 facing the transmission rod 202, there is an arc-shaped groove 307, and the transmission rod 202 is located in the arc-shaped groove 307.

[0045] In specific implementation: The second housing 304 being provided with the arc-shaped groove 307 can facilitate the positioning and installation of the transmission rod 202. At the same time, since the transmission rod 202 is located in the arc-shaped groove 307, the overall height can be reduced, making the product more compact.

[0046] Please refer to Figure 5 , the rotating frame 203 is provided with a plurality of mounting holes 308 and limiting holes 310, and the mounting holes 308 correspond to the limiting holes 310 respectively; mounting posts 309 are respectively arranged in the mounting holes 308. One end of the mounting post 309 is located in the mounting hole 308, and the other end is located in the limiting hole 310; the limiting hole 310 is provided with a limiting portion 311 for limiting the mounting post 309 on the rotating frame 203; the extrusion posts 204 are respectively sleeved outside the mounting posts 309 and are located between the mounting hole 308 and the limiting hole 310.

[0047] In specific implementation: The rotating frame 203 is provided with two mounting holes 308, which are arranged on both sides of the through hole 205, and the limiting holes 310 are correspondingly arranged with the mounting holes 308. The mounting holes 308 and the limiting holes 310 are respectively arranged on both sides of the rotating frame 203, and the limiting hole 310 is provided with a limiting portion 311. Each mounting hole 308 is provided with a mounting post 309. When installing the mounting post 309, the mounting post 309 is inserted into the mounting hole 308 and then into the limiting hole 310. As Figure 6 shown, the limiting portion 311 in the limiting hole 310 can limit the mounting post 309 to prevent the mounting post 309 from falling out of the rotating frame 203.

[0048] Specifically, the extrusion column 204 is respectively sleeved on the outside of the mounting column 309, and the extrusion column 204 is placed on the rotating frame 203, so that the center hole of the extrusion column 204 is aligned with the mounting hole 308 and the limiting hole 310, and the mounting column 309 is inserted into the mounting hole 308, the center hole and the limiting hole 310 to fix the extrusion column 204 on the rotating frame 203.

[0049] Furthermore, the limiting portion 311 may be a block or a sheet, which can limit the mounting column 309 on the rotating frame 203 .

[0050] Please refer to Figure 7 The second housing 304 is provided with a plurality of buckles 312. Figure 2 As shown, the first shell 303 is provided with a buckle position 313 corresponding to the buckle 312, and the buckle 312 is respectively engaged in the buckle position 313; a plurality of positioning groups 314 are provided between the second shell 304 and the third shell 305; each positioning group 314 includes a positioning column 315 and a positioning hole 316, the positioning column 315 is provided on the second shell 304, and the positioning hole 316 is provided on the third shell 305, and is provided corresponding to the positioning column 315.

[0051] In specific implementation: Figure 8 As shown, the first housing 303 and the second housing 304 are connected by a buckle 312 and a buckle position 313, which can reduce costs and simplify assembly process compared to traditional screw connections. Fig. 9 As shown, a plurality of positioning groups 314 are provided between the second housing 304 and the third housing 305; the positioning groups 314 include positioning posts 315 and positioning holes 316. Fig.10 As shown, the positioning column 315 is disposed on the second housing 304. Fig. 9 As shown, the positioning hole 316 is disposed on the third housing 305 , and the positioning hole 316 and the positioning column 315 are disposed correspondingly.

[0052] Specifically, the second shell 304 is provided with three positioning columns 315 , and the third shell 305 is provided with three positioning holes 316 , which can reduce product assembly errors and improve product stability.

[0053] Furthermore, a positioning group 314 is also provided between the second shell 304 and the first shell 303 to facilitate the positioning and installation of the first shell 303 and the second shell 304 .

[0054] Please refer to Fig.10 , the first shell 303 is provided with a first sealing structure 317. Figure 7As shown, the second shell 304 is provided with a second sealing structure 318; the first sealing structure 317 is arranged toward the second shell 304; when the buckle 312 is located in the buckle position 313, the first sealing structure 317 is located in the second shell 304; the second sealing structure 318 is arranged toward the third shell 305, and when the positioning columns 315 are respectively located in the positioning holes 316, the second sealing structure 318 is located in the third shell 305.

[0055] In specific implementation: the first sealing structure 317 is protrudingly arranged on the inner surface of the first shell 303. After the first shell 303 and the second shell 304 are installed, the first sealing structure 317 is accommodated in the second shell 304. The first sealing structure 317 can increase the sealing effect between the first shell 303 and the second shell 304, prevent the fluid from flowing out when the tube body 101 is damaged, and play a role in noise reduction. A second sealing structure 318 is arranged between the second shell 304 and the third shell 305. The second sealing structure 318 protrudes from the second shell 304 and is arranged toward the third shell 305. After the second shell 304 and the third shell 305 are installed, the second sealing structure 318 is accommodated in the third shell 305, thereby playing a sealing role.

[0056] Please refer to Figure 1 A driving member 319 is provided on one side of the third housing 305. Figure 2 As shown, a placement groove 320 is provided on one side of the third housing 305 facing the second housing 304, and an opening 330 of the placement groove 320 is tapered. Figure 7 As shown, the second shell 304 is provided with a protrusion 331 corresponding to the opening 330. After the second shell 304 and the third shell 305 are assembled, the protrusion 331 is located in the opening 330; the output shaft of the driving member 319 is fixedly connected to the center hole of the transmission rod 202, and drives the transmission rod 202 to rotate; the transmission rod 202 and the transmission wheel 201 are respectively provided with a transmission part 321, and the transmission parts 321 are engaged with each other; the driving member 319 drives the transmission rod 202 to rotate, and drives the transmission wheel 201 and the rotating frame 203 to rotate.

[0057] In the specific implementation: the driving member 319 is a power motor, which can drive the transmission rod 202 to rotate after power is turned on. During installation, the output shaft of the driving member 319 is placed in the opening 330 of the placement groove 320, and then the transmission rod 202 is installed on the output shaft, and then the third housing 305 is installed below the second housing 304, and the protrusion 331 is inserted into the opening 330 to fix the driving member 319 to prevent the output shaft from shaking. The opening 330 and the protrusion 331 are conical, which can be more concentrated after the assembly is completed, and the driving member 319 is better fixed on the third housing 305. The transmission rod 202 and the transmission wheel 201 are respectively provided with a transmission part 321. In a specific embodiment, the transmission rod 202 is a worm, the transmission wheel 201 is a worm wheel, and the transmission part 321 is a helical tooth, that is, the worm and the worm are respectively provided with helical teeth, and they are meshed with each other for transmission.

[0058] Please refer to Figure 4 The peristaltic assembly 1 includes a tube body 101 , which is disposed on the second shell 304 and located on one side of the squeezing column 204 ; the transmission rod 202 rotates to drive the squeezing column 204 to squeeze the tube body 101 .

[0059] In specific implementation: Figure 4 As shown, the peristaltic assembly 1 includes a tube body 101, which is disposed in the second shell 304 and located on one side of the squeezing column 204. When the squeezing column 204 rotates, it can squeeze and release the tube body 101 to transport the fluid.

[0060] Specifically, the driving member 319 is energized, and the transmission rod 202 moves on the output shaft of the driving member 319. The rotation of the transmission rod 202 drives the transmission wheel 201 meshing therewith to rotate, and the rotating frame 203 integrally formed with the transmission wheel 201 also rotates. During this process, the rotating frame 203 drives the extrusion column 204 on the rotating frame 203 to squeeze the tube body 101, sucking the liquid from one end of the tube body 101 and outputting it from the other end of the tube body 101, thereby realizing the fluid transportation.

[0061] Please refer to Figure 9-12 , fixing blocks 102 are respectively provided at both ends of the tube body 101, and the second shell 304 is provided with a clamping position 322 corresponding to the fixing block 102; the fixing blocks 102 are respectively engaged in the clamping positions 322; the clamping positions 322 are respectively provided with a plurality of fixing strips 323, the fixing strips 323 are arranged opposite to each other, and the fixing block 102 is provided with a plurality of fixing surfaces 103, and the fixing strips 323 are respectively abutted against the fixing surfaces 103.

[0062] In specific implementation: Fig.11As shown, two fixing bars 323 are provided in the locking position 322, and the two fixing bars 323 are arranged opposite to each other. The top of the fixing bar 323 abuts against the fixing surface 103 of the fixing block 102, forming a line-surface abutment fixation, which can lock the fixing block 102 in the locking position 322 to increase stability.

[0063] Specifically, the top of the fixing strip 323 is pointed, and after the fixing block 102 is placed in the locking position 322, the top of the fixing strip 323 will abut against the fixing surface 103 of the fixing block 102, and exert force on the fixing surface 103, thereby fixing the fixing block 102 in the locking position 322. The assembly method of the locking position 322 and the fixing block 102 can facilitate the repair or replacement of the tube body 101 when it is damaged, and the fixing block 102 can be removed from the locking position 322 for repair and replacement.

[0064] In one embodiment, a flexible layer is provided on the outer side of the extrusion column 204 to reduce vibration and noise.

[0065] In a specific implementation, the flexible layer is made of a flexible material that can be deformed under the action of an external force and return to its original state after the external force is removed, such as rubber or silicone. After the driving member 319 drives the transmission rod 202 to rotate, it drives the transmission wheel 201 to rotate, and drives the extrusion column 204 to squeeze the tube body 101. During this period, the flexible layer arranged on the outside of the extrusion column 204 will be deformed in the process of squeezing the tube body 101, and will return to its original state when it rotates to a position where the squeezing column 204 is not squeezed. The reciprocating alternation can squeeze and restore the tube body 101 more stably, reduce vibration and noise, and at the same time, can reduce the wear caused by squeezing the tube body 101.

[0066] Please refer to Fig.13 The present invention provides a control system for a high-precision peristaltic pump, including a driving member 319 for driving a transmission rod 202 to rotate; a control module 4, which is electrically connected to the driving member 319 and is used to control the driving member 319; a sensor 5, which is disposed on a tube body 101 or an extrusion column 204 and is electrically connected to the control module 4; and an alarm module 6, which is used to receive a trigger signal and issue an alarm.

[0067] In a specific implementation, the control module 4 is electrically connected to the driving member 319, and drives the driving member 319 to rotate. In a specific embodiment, the driving member 319 is a servo motor or a power motor. By controlling the rotation speed of the driving member 319, the extrusion frequency of the extrusion column 204 and the flow rate of the peristaltic pump are controlled. The sensor 5 is arranged on the tube body 101. The sensor 5 can be single or multiple, and is electrically connected to the control module 4 to obtain the pressure data of the peristaltic pump. The sensor 5 can be a pressure sensor or a deformation sensor. When it is a pressure sensor, it is arranged on the tube body 101; when it is a deformation sensor, it is arranged on the extrusion column 204, and the pressure value is obtained by monitoring the deformation of the extrusion column 204. The alarm module 6 is electrically connected to the control module 4. Further, the alarm module 6 is connected to a speaker, which can sound an alarm after receiving a trigger signal.

[0068] Please refer to Fig.14 The present invention provides a control method for a control system of a high-precision peristaltic pump, comprising the following steps:

[0069] S1, obtaining real-time pressure data of the peristaltic pump through a plurality of preset sensors 5;

[0070] S2, monitoring whether the real-time pressure data is within a preset pressure threshold range;

[0071] S3, if yes, the real-time pressure data is transmitted to the preset control module 4, and the preset driving member 319 is controlled by the control module 4 to adjust the parameters of the peristaltic pump; wherein the parameters include the extrusion frequency, the extrusion force and the pump speed; if no, the preset alarm module 6 is triggered to sound an alarm.

[0072] In this embodiment, the real-time pressure data of the peristaltic pump is first obtained through the preset multiple sensors 5, and then the real-time pressure data is monitored to see if it is within the preset pressure threshold range. If so, the real-time pressure data is transmitted to the control module 4, and the adjustment parameters are fed back to the drive member 319, and the drive member 319 is controlled by the control module 4 to adjust the peristaltic pump, wherein the parameters include the extrusion frequency, the extrusion force and the pump speed. If not, the alarm module 6 is triggered to sound an alarm. If the real-time pressure data has not been restored to the normal range, the parameters are further adjusted until it is within the preset threshold range.

[0073] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, device, article or method including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, device, article or method. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, device, article or method including the element.

[0074] The above description is only a preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A high-precision peristaltic pump, characterized in that: It comprises a peristaltic assembly, a transmission assembly and a housing, wherein the transmission assembly and the peristaltic assembly are respectively arranged in the housing, and the peristaltic assembly is arranged on one side of the transmission assembly; The transmission assembly comprises a transmission wheel, a transmission rod and a rotating frame, wherein the transmission wheel is fixedly connected to the rotating frame and is transmission-connected to the transmission rod; The rotating frame is provided with a plurality of extrusion columns, and the peristaltic assembly is wound around one side of the extrusion columns; The shell is provided with a plurality of recessed parts, each of which is recessed toward the inside of the shell to reduce the space inside the shell; The housing is provided with an axis core, the transmission wheel is sleeved on the outside of the axis core and is movably connected to the axis core; The housing comprises a first housing, a second housing and a third housing, wherein the first housing and the third housing are arranged on both sides of the second housing opposite to each other; the shaft core passes through the second housing, and one end of the shaft core is located in the first housing, and the other end is located in the third housing; The transmission rod drives the transmission wheel to move around the shaft core, so that the squeezing column squeezes the peristaltic component to generate negative pressure and pump out the fluid.

2. The high-precision peristaltic pump according to claim 1, characterized in that: The transmission wheel is provided with a through hole, the first shell and the third shell are respectively provided with fixing grooves, the shaft core passes through the through hole, and one end is located in the fixing groove of the first shell, and the other end is located in the fixing groove of the third shell.

3. The high-precision peristaltic pump according to claim 1, characterized in that: An arc-shaped groove is provided on a side of the second housing facing the transmission rod, and the transmission rod is located in the arc-shaped groove.

4. The high-precision peristaltic pump according to claim 1, characterized in that: The rotating frame is provided with a plurality of mounting holes and limiting holes, and the mounting holes correspond to the limiting holes respectively; The mounting holes are each provided with a mounting post, one end of the mounting post is located in the mounting hole, and the other end of the mounting post is located in the limiting hole; The limiting hole is provided with a limiting portion for limiting the mounting column on the rotating frame; The extrusion columns are respectively sleeved on the outside of the mounting columns and are located between the mounting holes and the limiting holes.

5. The high-precision peristaltic pump according to claim 1, characterized in that: The second shell is provided with a plurality of buckles, the first shell is provided with buckle positions corresponding to the buckles, and the buckles are respectively engaged in the buckle positions; A plurality of positioning groups are provided between the second shell and the third shell; Each of the positioning groups includes a positioning post and a positioning hole, wherein the positioning post is arranged on the second shell, and the positioning hole is arranged on the third shell and corresponds to the positioning post; The first shell is provided with a first sealing structure, and the second shell is provided with a second sealing structure; The first sealing structure is arranged toward the second shell; when the buckle is located in the buckle position, the first sealing structure is located in the second shell; The second sealing structure is disposed toward the third shell, and when the positioning posts are respectively located in the positioning holes, the second sealing structure is located in the third shell.

6. The high-precision peristaltic pump according to claim 1, characterized in that: A driving member is provided on one side of the third shell, and a placement groove is provided on a side of the third shell facing the second shell, wherein the opening of the placement groove is tapered; The second shell is provided with a convex block corresponding to the opening, and the convex block is located in the opening; The output shaft of the driving member is fixedly connected to the central hole of the transmission rod and drives the transmission rod to rotate; The transmission rod and the transmission wheel are respectively provided with transmission parts, and the transmission parts are meshed with each other; The driving member drives the transmission rod to rotate, and drives the transmission wheel and the rotating frame to rotate.

7. The high-precision peristaltic pump according to claim 1, characterized in that: The peristaltic assembly includes a tube body, which is arranged on the second housing and located on one side of the extrusion column; the transmission rod rotates to drive the extrusion column to squeeze the tube body; Both ends of the tube body are respectively provided with fixing blocks, and the second shell body is provided with a clamping position corresponding to the fixing blocks; The fixing blocks are respectively engaged in the engaging positions; The clamping positions are respectively provided with a plurality of fixing strips, and the fixing strips are arranged opposite to each other; The fixing block is provided with a plurality of fixing surfaces, and the fixing strips are respectively in contact with the fixing surfaces.

8. The high-precision peristaltic pump according to claim 1, characterized in that: A flexible layer is provided on the outer side of the extruded column to reduce vibration and noise.

9. A control system for a high-precision peristaltic pump according to any one of claims 1 to 8, characterized in that: include: A driving member, used for driving the transmission rod to rotate; A control module, the control module is electrically connected to the driving member and is used to control the driving member; A sensor, the sensor is arranged on the tube body or the extrusion column and is electrically connected to the control module; The alarm module is used to receive a trigger signal and sound an alarm.

10. A control method for a control system of a high-precision peristaltic pump according to claim 9, characterized in that: The following steps are involved: Acquire the real-time pressure data of the peristaltic pump through multiple preset sensors; Monitoring whether the real-time pressure data is within a preset pressure threshold range; If yes, the real-time pressure data is transmitted to a preset control module, and the preset driving member is controlled by the control module to adjust the parameters of the peristaltic pump; wherein the parameters include extrusion frequency, extrusion force and pump speed; If not, the preset alarm module is triggered to sound an alarm.

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