CN113833621A - High-flux and remotely-controllable high-precision metering pump - Google Patents

High-flux and remotely-controllable high-precision metering pump Download PDF

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Publication number
CN113833621A
CN113833621A CN202111287785.1A CN202111287785A CN113833621A CN 113833621 A CN113833621 A CN 113833621A CN 202111287785 A CN202111287785 A CN 202111287785A CN 113833621 A CN113833621 A CN 113833621A
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CN
China
Prior art keywords
valve core
sample injector
valve
channel
metering pump
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Granted
Application number
CN202111287785.1A
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Chinese (zh)
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CN113833621B (en
Inventor
张天洪
刘伟平
朱国伟
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Shenzhen Chaoci Robot Technology Co ltd
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Shenzhen Chaoci Robot Technology Co ltd
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Priority to CN202111287785.1A priority Critical patent/CN113833621B/en
Publication of CN113833621A publication Critical patent/CN113833621A/en
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Publication of CN113833621B publication Critical patent/CN113833621B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections

Abstract

A high-flux and remotely-controllable high-precision metering pump mainly comprises: the device comprises a planar reversing valve, a sample injector, a metering pump control panel, a WIFI antenna, an aviation plug and a metering pump profile; the WIFI antenna and the aviation plug transmit a received remote control signal and a control instruction of external control equipment to a metering pump control panel, the metering pump control panel starts an integrated closed-loop stepping motor and a sample injector driving motor according to the received control signal and control instruction, so that a liquid outlet of liquid adding equipment is communicated with a sample injector through a planar reversing valve, a liquid inlet of the liquid adding equipment is communicated with the sample injector through the planar reversing valve after a solution in the liquid adding equipment is sucked into the sample injector through the liquid outlet, and the solution stored in the sample injector is discharged to the liquid outlet of the liquid adding equipment through the planar reversing valve; according to the invention, the solution movement is realized through a full-automatic design, and the remote control signal reception is realized by adopting a WIFI antenna, so that the problems of low manual pipetting efficiency, poor precision and incapability of remote control are solved.

Description

High-flux and remotely-controllable high-precision metering pump
Technical Field
The invention relates to the field of liquid conveying equipment, in particular to a large-flux remote-control high-precision metering pump.
Background
In apparatuses requiring fluid transfer, such as medical equipment and industrial equipment, it is often necessary to move a solution to a specific position, and a pipetting apparatus of the prior art often requires manual operation, and is inefficient, inaccurate, and not remotely controllable.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high-flux and remotely-controllable high-precision metering pump, which realizes solution movement through full-automatic design and adopts a WIFI antenna to realize remote control signal receiving so as to solve the problems of low manual pipetting efficiency, poor precision and incapability of remote control.
The invention is realized in such a way that the technical scheme adopted by the high-precision metering pump with large flux and remote control is as follows: a high-throughput, remotely controllable, high precision metering pump comprising:
planar reversing valve (001) comprising: the device comprises a plane valve (0011), a valve core (0012), a valve core connecting sleeve (0013), an input connecting shaft (0014), a compression spring (0015), an integrated closed-loop stepping motor (0018), a plane thrust bearing (00192) and a plane valve mounting piece (0016); the plane valve (0011) is used for connecting the liquid adding equipment and the sample injector (002), and comprises a first channel (00101), a second channel (00102), a third channel (00103), a first channel connecting sleeve (001011) and a second channel connecting sleeve (001021), wherein the first channel (00101) and the second channel (00102) are respectively connected with a liquid inlet or a liquid outlet of the liquid adding equipment, and the third channel (00103) is connected with the sample injector (002); the first channel connecting sleeve (001011) is arranged on the outward protruding part of the first channel (00101) to fix the connecting pipeline of the first channel (00101) and the liquid adding equipment; the second channel connecting sleeve (001021) is arranged on the outward protruding part of the second channel (00102) to fix the connecting pipeline of the second channel (00102) and the liquid adding equipment; the valve core (0012) is rotated to enable the first channel (00101) to be communicated with the third channel (00103), or the second channel (00102) is communicated with the third channel (00103); the valve core connecting sleeve (0013) is used for fixing the valve core (0012) and enabling the valve core (0012) to rotate; the input connecting shaft (0014) is used for driving the valve core connecting sleeve (0013) to rotate; the compression spring (0015) is used for applying certain pressure to the valve core (0012) so that the valve core (0012) is tightly attached to the plane valve (0011); the integrated closed-loop stepping motor (0018) is used for driving the input connecting shaft (0014) to rotate, so that the input connecting shaft (0014) drives the valve core connecting sleeve (0013) to rotate, and the valve core connecting sleeve (0013) drives the valve core (0012) to rotate; the plane thrust bearing (00192) is used for bearing pressure generated when a motor shaft of the integrated closed-loop stepping motor (0018) rotates so as to enable the input connecting shaft (0014) to rotate stably; the plane valve mounting part (0016) is used for fixing the valve core (0012) and the valve core connecting sleeve (0013); the flat valve (0011) is provided with a first channel opening (0010101), a second channel opening (0010102) and one end of a third channel opening (0010103) is attached to one end of the valve core (0012) provided with a valve core channel (00121), the other end of the valve core (0012) is attached to one end of the valve core connecting sleeve (0013) provided with a valve core connecting sleeve convex part (00131), one end of the input connecting shaft (0014) provided with a first convex part (001411) of an input connecting shaft and a second convex part (001412) of the input connecting shaft is arranged in a valve core connecting sleeve cavity (00134) formed by outward extension of the side wall of the other end of the valve core connecting sleeve (0013), a compression spring (0015) is arranged in a valve core connecting sleeve spring mounting hole (00133) arranged at the other end of the valve core connecting sleeve (0013), a flat thrust bearing (00192) is sleeved on the outer wall of the input end (0014), and a flat valve mounting piece (0016) is sleeved on the peripheries of the valve core (0012) and the valve core connecting shaft (0013), a motor shaft of the integrated closed-loop stepping motor (0018) is embedded in an input connecting shaft through hole (00142) of the input connecting shaft (0014); the plane valve (0011) and the valve core (0012) are made of corrosion-resistant Teflon materials;
an injector (002) for sucking and discharging a solution, comprising: the device comprises a liquid inlet device (4), a plunger (1), a plunger connector (2), a sealing sleeve (11), a sealing ring (12) and a sealing gasket (13); the liquid inlet device (4) is used for inputting, outputting and storing the solution, and the liquid inlet device (4) is made of Teflon material, has good swelling resistance and chemical stability, and can store the corrosive solution; the plunger (1) is positioned in the containing cavity of the liquid inlet device (4), the plunger (1) is used for pumping or discharging a solution into or out of the liquid inlet device (4) through reciprocating drawing movement, and the plunger (1) is made of zirconia materials, and is smooth in surface, wear-resistant and corrosion-resistant; the plunger connector (2) is used for fixing the plunger (1) and connecting the sample injector driving motor (0023) so that the sample injector driving motor (0023) drives the plunger (1) to do reciprocating drawing movement through the plunger connector (2); the sealing sleeve (11), the sealing ring (12) and the sealing gasket (13) are sleeved on the plunger (1) and used for sealing the opening of the plunger (1) and the liquid inlet device (4) to prevent the solution in the liquid inlet device (4) from leaking; the sealing sleeve (11), the sealing ring (12) and the sealing gasket (13) are made of Teflon materials;
the metering pump control board (0032) is electrically connected with the integrated closed-loop stepping motor (0018) and the sample injector driving motor (0023) respectively and is used for controlling the starting, running and stopping of the integrated closed-loop stepping motor (0018) and the sample injector driving motor (0023);
the WIFI antenna (0031) is electrically connected with the metering pump control board (0032) and is used for transmitting the received remote control signal to the metering pump control board (0032);
the number of the aviation plugs (0033) is multiple, one end of each aviation plug (0033) is electrically connected with the metering pump control board (0032), and the other end of each aviation plug (0033) is connected with external control equipment, such as a liquid adding button, a liquid adding pen, an interactive controller, a weighing balance and the like;
metering pump section bar (004) for installation and fixed plane switching-over valve (001), injector (002), metering pump control panel (0032).
The working principle of the large-flux remotely-controllable high-precision metering pump is as follows:
WIFI antenna (0031) conveys received remote control signal to measuring pump control panel (0032), the external control equipment's that aviation plug (0033) will connect control command conveys to measuring pump control panel (0032), measuring pump control panel (0032) is according to received control signal and control command, start integral type closed loop step motor (0018) and injector driving motor (0023), make the liquid outlet of liquid feeding equipment pass through plane switching-over valve (001) and injector (002) intercommunication, solution in the liquid feeding equipment is back in being inhaled injector (002) through the liquid outlet, the inlet of liquid feeding equipment passes through plane switching-over valve (001) and injector (002) intercommunication, the solution of storing in injector (002) discharges to the liquid outlet of liquid feeding equipment through plane switching-over valve (001) again, thus, the transfer of solution has just been realized.
Further, the spool passage (00121) has a length and a depth to accommodate both the first passage opening (0010101) and the third passage opening (0010103), or the second passage opening (0010102) and the third passage opening (0010103); the other end of the valve core (0012) protrudes outwards to form a valve core protruding part (00122), the valve core protruding part (00122) is in a cross shape, valve core sunken positions (00123) are formed by the valve core protruding part (00122) and the end face of the valve core (0012), and the number of the valve core sunken positions (00123) is four; the number of the valve core connecting sleeve bulges (00131) is four, and the valve core connecting sleeve bulges are evenly distributed on the end face of the valve core connecting sleeve (0013); the shape of the valve core connecting sleeve bulge (00131) is matched with that of the valve core sunken position (00123), the position of the valve core connecting sleeve bulge (00131) is opposite to that of the valve core sunken position (00123), so that the valve core connecting sleeve bulge (00131) is tightly placed in the valve core sunken position (00123), and the valve core connecting sleeve bulge (00131) rotates in the valve core sunken position (00123) to drive the valve core bulge (00122) to rotate, so that the valve core channel (00121) rotates.
Furthermore, the end face of the valve core connecting sleeve (0013) is provided with a through valve core connecting sleeve opening (00132), and the valve core connecting sleeve opening (00132) has a certain length so as to accommodate the input connecting shaft first protruding part (001411) and the input connecting shaft second protruding part (001412); the valve core connecting sleeve spring mounting holes (00133) are evenly distributed on the bottom surface surrounding a valve core connecting sleeve cavity (00134), the number of the valve core connecting sleeve spring mounting holes (00133) is the same as that of the compression springs (0015), and the positions of the valve core connecting sleeve spring mounting holes (00133) are opposite to that of the compression springs (0015); the first input connecting shaft protruding part (001411) and the second input connecting shaft protruding part (001412) are located on two sides of the through hole (00142) of the input connecting shaft, and the outer walls of the first input connecting shaft protruding part (001411) and the second input connecting shaft protruding part (001412) are tightly attached to the inner wall of the opening (00132) of the valve core connecting sleeve respectively; an input connecting shaft annular groove (00143) is formed in the annular outer wall of the input connecting shaft (0014), the input connecting shaft annular groove (00143) is used for placing an input connecting shaft sealing ring (00144), and the input connecting shaft sealing ring (00144) is tightly attached to the inner wall of a rear opening (001612) of the plane thrust bearing; the plane thrust bearing (00192) is positioned between the first protruding part (001411) of the input connecting shaft and the second protruding part (001412) of the input connecting shaft and the annular groove (00143) of the input connecting shaft, and one surface of the plane thrust bearing (00192) is attached to the end surface, exposed out of the valve core connecting sleeve spring mounting hole (00133), of the compression spring (0015).
Furthermore, the plane reversing valve (001) also comprises a plane valve motor fixing piece (00193) and a plane valve fixing piece (00191); the plane valve motor fixing piece (00193) is sleeved at the bottom end of a motor shaft of an integrated closed-loop stepping motor (0018), a plurality of through holes are formed in the plane valve motor fixing piece (00193), a plurality of plane thrust bearing mounting holes (00162) are formed in the plane valve mounting piece (0016) at the side of a backward opening (001612) of a plane thrust bearing, the plane thrust bearing mounting holes (00162) are connected with the through holes formed in the plane valve motor fixing piece (00193) through screws, so that the plane valve mounting piece (0016) is fixedly mounted on the plane valve motor fixing piece (00193), and one end, provided with a first channel opening (0010101), a second channel opening (0010102) and a third channel opening (0010103), of the plane thrust bearing forward opening (001611) of the plane valve mounting piece (0016) and one end, provided with the first channel opening (0010101), the second channel opening (0010102) and the third channel opening (0010103) are tightly attached to each other; the plane valve fixing piece (00191) is sleeved on the periphery of the joint of the valve core (0012) and the valve core connecting sleeve (0013);
threads arranged on the inner wall of the first channel connecting sleeve (001011) are meshed with threads arranged on the outer wall of the protruding part of the first channel (00101), so that the first channel connecting sleeve (001011) is installed on the protruding part of the first channel (00101); threads arranged on the inner wall of the second channel connecting sleeve (001021) are meshed with threads arranged on the outer wall of the protruding part of the second channel (00102), so that the second channel connecting sleeve (001021) is installed on the protruding part of the second channel (00102); the plane reversing valve (001) further comprises a plane valve top cover (00194) and a plane valve top cover connecting piece (00195), and the plane valve top cover (00194) is installed at one end, not connected with the valve core (0012), of the plane valve (0011) through the plane valve top cover connecting piece (00195).
Furthermore, the sample injector (002) also comprises a locking nut (3), wherein the locking nut (3) is used for locking the sealing sleeve (11) and the sealing gasket (13) so that the inner ring of the sealing sleeve (11) and the inner ring of the sealing gasket (13) are tightly contacted with the plunger (1) to achieve the sealing purpose; the sealing ring (12) is positioned between the sealing sleeve (11) and the sealing gasket (13) and used for fastening the sealing sleeve (11);
the liquid inlet device (4) comprises a second cylinder (41), the interior of the second cylinder (41) is a cavity for placing the plunger (1) and storing solution, and one end of the second cylinder (41) is an opening for enabling the plunger (1) to enter and exit; the inner wall of the locking nut (3) is provided with a first thread groove (31); a protruding part (42) is arranged on the periphery of one end of the second column body (41), and a second thread groove (44) is arranged on the outer surface of the protruding part (42); the inner wall of the bulge (42) is provided with a first annular step (401) and a second annular step (402), the first annular step (401) is used for fixing the sealing sleeve (11), and the second annular step (402) is used for fixing the sealing gasket (13); the first thread groove (31) and the second thread groove (44) are mutually meshed, so that the locking nut (3) locks the sealing sleeve (11) and the sealing gasket (13) through the bulge (42), and the sealing ring (12) is in deformation interference fit, so that absolute sealing is realized;
the other end of the second column body (41) protrudes outwards to form a liquid conveying part (43), a solution conveying hole is formed in the bottom of the liquid conveying part (43), the solution conveying hole is used for conveying a solution conveyed by an external pipeline into the second column body (41) and outputting the solution in the second column body (41) to the external pipeline, the liquid conveying part (43) has a certain length, and a threaded groove is formed in the outer surface of the liquid conveying part (43) to be connected with a third channel (00103);
the plunger connector (2) comprises a first cylinder (22), one end of the first cylinder (22) is provided with an opening for placing the plunger (1), the middle of the upper surface (23) of the first cylinder (22) is provided with a motor connecting part (21) which protrudes outwards to be connected with the sample injector connecting part (00241), the motor connecting part (21) has a certain length, and the outer surface of the motor connecting part (21) is provided with an annular sunken part (211); a first contact surface (201) is formed inside the upper surface (23), a second contact surface (202) is formed on the inner wall of the first cylinder (22), the first contact surface (201) is connected with the top end of the plunger (1), the second contact surface (202) is connected with the side wall of the top of the plunger (1), and the parts of the first contact surface (201) and the second contact surface (202) connected with the plunger (1) are bonded through glue so that the plunger (1) is fixedly connected with the plunger connector (2).
Furthermore, a through plane reversing valve mounting port (0041) and a sample injector movable port (0042) are arranged on the left side wall of the metering pump profile (004), a third outer cover mounting position (00434) is arranged on the right side wall of the metering pump profile (004), the plane reversing valve mounting port (0041) and the sample injector movable port (0042) are located on the same side wall, a fourth outer cover mounting position (00435) is located on the other side wall, the plane reversing valve mounting port (0041) is located above the sample injector movable port (0042), the plane reversing valve mounting port (0041) is used for fixedly mounting a plane reversing valve (001), the sample injector movable port (0042) is an up-and-down movement space of the column connector (2), and a fourth outer cover mounting position (00435) is used for mounting a fourth outer cover (00514); a photoelectric sensor slider mounting groove (00441) and a guide rail mounting position (0443) are respectively arranged on the inward two sides of the plane reversing valve mounting port (0041) and the sample injector movable port (0042), the photoelectric sensor slider mounting groove (00441) is used for mounting a photoelectric sensor slider (00516), and the guide rail mounting position (0443) is used for mounting a sample injector guide rail (00242); the middle positions of the photoelectric sensor slider mounting groove (00441) and the guide rail mounting position (0443) are baffle mounting positions (00442); a control plate installation cavity (00445) is formed in the right side wall of the metering pump section bar (004) to place a metering pump control plate (0032), and the middle position of the left side wall and the right side wall of the metering pump section bar (004) is a motor position (00444) to accommodate an integrated closed-loop stepping motor (0018) and a sample injector driving motor (0023); the top end of the metering pump section bar (004) is a second outer cover mounting position (00433) which is provided with a through hole for mounting a second outer cover (00512) through a screw; the bottom end of the metering pump section bar (004) is a third outer cover mounting position (00434) which is provided with a through hole for mounting the third outer cover (00513) through a screw; the outside of photoelectric sensor slider mounting groove (00441) forms first installation position of first enclosing cover (00431), and the outside of control panel installation cavity (00445) forms first enclosing cover second installation position (00432), and first installation position of first enclosing cover (00431) and first enclosing cover second installation position (00432) are equipped with the through-hole respectively in order to pass through first enclosing cover of screw installation (00511).
Further, the large-flux remotely-controllable high-precision metering pump further comprises a first sample injector fixing member (0021) and a second sample injector fixing member (0022), the sampler comprises a sampler connecting piece (00241), a first sampler fixing piece (0021) is used for fixing a liquid conveying part (43) on a corresponding position of the outer side of the left side wall of a metering pump profile (004), a second sampler fixing piece (0022) is used for connecting a sampler connector (2) with a sampler driving motor (0023) through the sampler connecting piece (00241), one end of the sampler connecting piece (00241) is fixed on a concave part (211) through a mounting screw, the other end of the second sampler fixing piece (0022) penetrates through a sampler movable port (0042) and is fixed at one end of the sampler connecting piece (00241) through the mounting screw, and the other end of the sampler connecting piece (00241) is fixedly arranged on a motor shaft of the sampler driving motor (0023); the motor shaft of the sample injector driving motor (0023) drives the sample injector connecting piece (00241) to move, and then the sample injector connecting piece (00241) drives the sample injector second fixing piece (0022) to move so as to drive the plunger connector (2) to move up and down, so that the plunger connector (2) drives the plunger (1) to do reciprocating drawing movement.
Further, the high-throughput, remotely-controllable, high-precision metering pump further comprises a first injector slide (00243) and a second injector slide (00244); one surface of the sampler first slide block (00243) is arranged on a position corresponding to the sampler connecting piece (00241), and the other surface of the sampler first slide block (00243) is arranged on a position corresponding to the sampler guide rail (00242); one surface of the sample injector second slide block (00244) is arranged on a corresponding position of the sample injector connecting piece (00241), and the other surface of the sample injector second slide block (00244) is arranged on a corresponding position of the sample injector guide rail (00242); the first injector slide (00243) and the second injector slide (00244) have a certain interval therebetween, and the first injector slide (00243) and the second injector slide (00244) are used for smoothly moving the injector connector (00241) along the injector guide rail (00242).
Further, the large-flux remotely-controllable high-precision metering pump further comprises a photoelectric sensor (00515), wherein the photoelectric sensor (00515) is used for detecting the movement position of the second sample injector fixing piece (0022), one end of the photoelectric sensor (00515) is installed on a photoelectric sensor sliding block (00516), and the other end of the photoelectric sensor (00515) is installed on the sample injector connecting piece (00241) through a photoelectric sensor installing piece (00517); the photoelectric sensor (00515) moves up and down by following the sample injector connecting piece (00241), so that the movement position of the second fixing piece (0022) of the sample injector is detected, and a detection signal is transmitted to the metering pump control board (0032), so that the metering pump control board (0032) can accurately control the starting, running and stopping of the integrated closed-loop stepping motor (0018) and the sample injector driving motor (0023).
Further, the high-throughput, remotely controllable, high precision metering pump further comprises a first baffle (005151), a second baffle (005152), and a guard baffle (005153), located at a baffle mounting location (00442); the first baffle (005151) and the second baffle (005152) are buckled, and the protective baffle (005153) is arranged in a cavity formed by buckling the first baffle (005151) and the second baffle (005152); the first baffle (005151), the second baffle (005152) and the protective baffle (005153) are provided with through openings so that the other end of the sample injector second fixing piece (0022) penetrates through the through openings to be connected with the sample injector connecting piece (00241), and the protective baffle (005153) moves up and down in the first baffle (005151) and the second baffle (005152) along the movement direction of the sample injector second fixing piece (0022); the first baffle (005151), the second baffle (005152), and the protective baffle (005153) are made of Teflon.
Compared with the prior art, the high-precision metering pump with large flux and remote control provided by the invention has the beneficial effects that the high-precision metering pump with large flux and remote control mainly comprises: the device comprises a plane reversing valve (001), a sample injector (002), a metering pump control panel (0032), a WIFI antenna (0031), an aviation plug (0033) and a metering pump section bar (004); the WIFI antenna (0031) and the aviation plug (0033) transmit the received remote control signal and a control instruction of an external control device to a metering pump control board (0032), the metering pump control board (0032) starts an integrated closed-loop stepping motor (0018) and a sample injector driving motor (0023) according to the received control signal and the control instruction, so that a liquid outlet of the liquid adding device is communicated with a sample injector (002) through a plane reversing valve (001), after a solution in the liquid adding device is sucked into the sample injector (002) through the liquid outlet, a liquid inlet of the liquid adding device is communicated with the sample injector (002) through the plane reversing valve (001), and the solution stored in the sample injector (002) is discharged to the liquid outlet of the liquid adding device through the plane reversing valve (001); according to the invention, the solution movement is realized through a full-automatic design, and the remote control signal reception is realized by adopting a WIFI antenna, so that the problems of low manual pipetting efficiency, poor precision and incapability of remote control are solved.
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 embodiments will be briefly described 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 that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an external schematic view of a high-throughput, remotely-controllable, high-precision metering pump according to an embodiment of the present invention.
Fig. 2 is another schematic diagram of the appearance of a large-flux remotely-controllable high-precision metering pump according to an embodiment of the present invention.
Fig. 3 is an exploded view of a high-throughput, remotely controllable, high-precision metering pump according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a part of a large-flux remotely-controllable high-precision metering pump provided by the embodiment of the invention.
Fig. 5 is a schematic structural diagram of a part of a large-flux remotely-controllable high-precision metering pump provided by the embodiment of the invention.
Fig. 6 is a partially exploded view of a high-throughput, remotely controllable, high-precision metering pump according to an embodiment of the present invention.
Fig. 7 is a second partially exploded schematic view of a high-throughput, remotely controllable high-precision metering pump according to an embodiment of the present invention.
Fig. 8 is a third partially exploded schematic view of a high-throughput, remotely controllable high-precision metering pump according to an embodiment of the present invention.
Fig. 9 is an external view of a planar reversing valve of a high-flux remotely-controllable high-precision metering pump provided by the embodiment of the invention.
Fig. 10 is another schematic diagram of the appearance of the planar reversing valve of the high-flux remotely-controllable high-precision metering pump provided by the embodiment of the invention.
Fig. 11 is another schematic diagram of the appearance of the planar reversing valve of the high-flux remotely-controllable high-precision metering pump provided by the embodiment of the invention.
Fig. 12 is a schematic partial structural view of a planar reversing valve of a high-throughput remotely-controllable high-precision metering pump provided by an embodiment of the invention.
Fig. 13 is another schematic view of a part of the structure of a planar reversing valve of a high-throughput remote-controllable high-precision metering pump according to an embodiment of the invention.
Fig. 14 is another schematic view of a part of the structure of a planar reversing valve of a high-flux remotely-controllable high-precision metering pump provided by the embodiment of the invention.
Fig. 15 is an exploded view of a planar reversing valve of a high-throughput, remotely controllable, high-precision metering pump according to an embodiment of the present invention.
Fig. 16 is an exploded schematic view in another direction of a planar reversing valve of a high-throughput, remotely controllable, high-precision metering pump according to an embodiment of the present invention.
Fig. 17 is a partially exploded view of a planar reversing valve of a high-throughput, remotely controllable high-precision metering pump according to an embodiment of the present invention.
Fig. 18 is a partially exploded view in another direction of a planar reversing valve of a high-throughput, remotely controllable high-precision metering pump according to an embodiment of the present invention.
Fig. 19 is another schematic diagram of a partially exploded view of a planar reversing valve of a high-throughput, remotely controllable high-precision metering pump according to an embodiment of the present invention.
Fig. 20 is a schematic plane valve diagram of a plane reversing valve of a high-flux remotely-controllable high-precision metering pump provided by an embodiment of the invention.
Fig. 21 is another schematic view of a planar valve of a planar reversing valve of a high-throughput remotely-controllable high-precision metering pump according to an embodiment of the present invention.
Fig. 22 is a schematic diagram of a valve core of a planar reversing valve of a high-flux remotely-controllable high-precision metering pump provided by an embodiment of the invention.
Fig. 23 is another schematic diagram of the valve core of the planar reversing valve of the high-flux remotely-controllable high-precision metering pump according to the embodiment of the invention.
Fig. 24 is a schematic diagram of a valve core connecting sleeve of a planar reversing valve of a high-throughput remote-controllable high-precision metering pump provided by an embodiment of the invention.
Fig. 25 is another schematic view of a valve core connecting sleeve of a planar reversing valve of a high-throughput remote-controllable high-precision metering pump provided by the embodiment of the invention.
Fig. 26 is a schematic diagram of an input connecting shaft of a planar reversing valve of a high-flux remotely-controllable high-precision metering pump provided by an embodiment of the invention.
Fig. 27 is another schematic view of the input connecting shaft of the planar reversing valve of the high-flux remotely-controllable high-precision metering pump according to the embodiment of the invention.
Fig. 28 is a schematic view of a planar valve mount of a planar reversing valve of a high-throughput, remotely controllable, high-precision metering pump provided by an embodiment of the present invention.
Fig. 29 is another schematic orientation of a planar valve mount of a planar reversing valve of a high-throughput, remotely controllable, high-precision metering pump according to embodiments of the present invention.
Fig. 30 is a schematic external view of a sample injector of a high-throughput, remotely-controllable, high-precision metering pump according to an embodiment of the present invention.
FIG. 31 is a schematic view of another aspect of a sample injector of a high-throughput, remotely-controllable, high-precision metering pump according to an embodiment of the present invention.
FIG. 32 is a schematic view of another aspect of a sample injector for a high-throughput, remotely-controllable, high-precision metering pump according to an embodiment of the present invention.
FIG. 33 is a partially exploded view of the sample injector of a high-throughput, remotely controllable, high-precision metering pump according to embodiments of the present invention.
FIG. 34 is an exploded view of the sample injector of a high-throughput, remotely controllable, high-precision metering pump according to embodiments of the present invention.
FIG. 35 is another schematic exploded view of the injector of the high-throughput, remotely controllable high-precision metering pump according to embodiments of the present invention.
FIG. 36 is another schematic exploded view of the injector of a high-throughput, remotely controllable, high-precision metering pump according to embodiments of the present invention.
FIG. 37 is a schematic drawing of the inlet of the sample injector of a high-throughput, remotely controllable, high-precision metering pump according to an embodiment of the present invention.
Fig. 38 is another schematic diagram of the liquid inlet of the sample injector of the high-throughput, remotely-controllable, high-precision metering pump according to the embodiment of the present invention.
FIG. 39 is a schematic diagram of the plunger connector of the injector of a high-throughput, remotely controllable, high-precision metering pump according to an embodiment of the present invention.
Fig. 40 is an external schematic view of a metering pump profile of a high-throughput, remotely-controllable, high-precision metering pump according to an embodiment of the present invention.
Fig. 41 is another schematic diagram of the external appearance of a metering pump profile of a large-flux remotely-controllable high-precision metering pump according to an embodiment of the present invention.
Fig. 42 is another schematic diagram of the external appearance of a metering pump profile of a large-flux remotely-controllable high-precision metering pump according to an embodiment of the present invention.
Fig. 43 is another schematic diagram of the external appearance of a metering pump profile of a high-throughput, remotely-controllable high-precision metering pump according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. It is to be understood that the terms "upper", "lower", "left", "right", and the like, if any, are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms in the drawings describing the positional relationships are used for illustrative purposes only and are not to be construed as limiting the present patent, and the specific meanings of the terms will be understood by those skilled in the art according to the specific circumstances.
The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 43, a preferred embodiment of the present invention is shown.
The invention provides a large-flux high-precision metering pump capable of being remotely controlled, which comprises:
a planar reversing valve 001, comprising: the device comprises a plane valve 0011, a valve core 0012, a valve core connecting sleeve 0013, an input connecting shaft 0014, a compression spring 0015, an integrated closed-loop stepping motor 0018, a plane thrust bearing 00192 and a plane valve mounting part 0016; the plane valve 0011 is used for connecting the liquid adding equipment and the sample injector 002, and comprises a first channel 00101, a second channel 00102, a third channel 00103, a first channel connecting sleeve 001011 and a second channel connecting sleeve 001021, wherein the first channel 00101 and the second channel 00102 are respectively connected with a liquid inlet or a liquid outlet of the liquid adding equipment, and the third channel 00103 is connected with the sample injector 002; the first channel connecting sleeve 001011 is arranged on the outward protruding part of the first channel 00101 to fix the connecting pipeline of the first channel 00101 and the liquid adding equipment; the second channel connecting sleeve 001021 is arranged on the outward protruding part of the second channel 00102 to fix the connecting pipeline of the second channel 00102 and the liquid adding equipment; the valve core 0012 rotates to enable the first channel 00101 to be communicated with the third channel 00103, or the second channel 00102 to be communicated with the third channel 00103; the valve core connecting sleeve 0013 is used for fixing the valve core 0012 and enabling the valve core 0012 to rotate; the input connecting shaft 0014 is used for driving the valve core connecting sleeve 0013 to rotate; the compression spring 0015 is used for applying a certain pressure to the valve core 0012 so that the valve core 0012 is tightly attached to the planar valve 0011; the integrated closed-loop stepping motor 0018 is used for driving the input connecting shaft 0014 to rotate, so that the input connecting shaft 0014 drives the valve core connecting sleeve 0013 to rotate, and the valve core connecting sleeve 0013 drives the valve core 0012 to rotate; the plane thrust bearing 00192 is used for bearing pressure generated when a motor shaft of the integrated closed-loop stepping motor 0018 rotates, so that the input connecting shaft 0014 can rotate stably; the plane valve mounting part 0016 is used for fixing the valve core 0012 and the valve core connecting sleeve 0013; one end of the plane valve 0011 provided with a first channel opening 0010101, a second channel opening 0010102 and a third channel opening 0010103 is attached to one end of the valve core 0012 provided with a valve core channel 00121, the other end of the valve core 0012 is attached to one end, provided with a valve core connecting sleeve convex part 00131, of the valve core connecting sleeve 0013, one end, provided with an input connecting shaft first convex part 001411 and an input connecting shaft second convex part 001412, of the input connecting shaft 0014 is installed in a valve core connecting sleeve cavity 00134 formed by outward extension of the side wall of the other end of the valve core connecting sleeve 0013, a compression spring 0015 is installed in a valve core connecting sleeve spring installation hole 00133 formed in the other end of the valve core connecting sleeve 0013, a plane thrust bearing 00192 is sleeved on the outer wall of the input connecting shaft 0014, a plane valve installation part 0016 is sleeved on the peripheries of the valve core 0012 and the valve core connecting sleeve 0013, and a motor shaft of the integrated closed-loop stepping motor 0018 is embedded and installed in an input connecting shaft through hole 00142 of the input connecting shaft 0014; the plane valve 0011 and the valve core 0012 are made of corrosion-resistant Teflon materials;
the injector 002 for sucking and discharging the solution includes: the liquid inlet device 4, the plunger 1, the plunger connector 2, the sealing sleeve 11, the sealing ring 12 and the sealing gasket 13; the liquid inlet device 4 is used for inputting, outputting and storing the solution, and the liquid inlet device 4 is made of Teflon material, has good swelling resistance and chemical stability, and can store corrosive solution; the plunger 1 is positioned in the containing cavity of the liquid inlet device 4, the plunger 1 is used for pumping or discharging a solution into or out of the liquid inlet device 4 through reciprocating drawing movement, and the plunger 1 is made of zirconia materials and is smooth in surface, wear-resistant and corrosion-resistant; the plunger connector 2 is used for fixing the plunger 1 and connecting the sample injector driving motor 0023, so that the sample injector driving motor 0023 drives the plunger 1 to perform reciprocating drawing movement through the plunger connector 2; the sealing sleeve 11, the sealing ring 12 and the sealing gasket 13 are sleeved on the plunger 1 and used for sealing the opening of the plunger 1 and the liquid inlet device 4 so as to prevent the solution in the liquid inlet device 4 from leaking; the sealing sleeve 11, the sealing ring 12 and the sealing gasket 13 are made of Teflon materials;
a metering pump control board 0032 which is respectively and electrically connected with the integrated closed-loop stepping motor 0018 and the sample injector driving motor 0023 and is used for controlling the start, operation and stop of the integrated closed-loop stepping motor 0018 and the sample injector driving motor 0023;
the WIFI antenna 0031 is electrically connected with the metering pump control board 0032 and used for transmitting the received remote control signal to the metering pump control board 0032;
a plurality of aviation plugs 0033 are provided, one end of each aviation plug 0033 is electrically connected with the metering pump control board 0032, and the other end of each aviation plug 0033 is connected with external control equipment, such as a liquid adding button, a liquid adding pen, an interactive controller, a weighing balance and the like;
a metering pump section 004 for installing and fixing the plane reversing valve 001, the sample injector 002 and the metering pump control plate 0032.
The working principle of the large-flux remotely-controllable high-precision metering pump is as follows:
WIFI antenna 0031 conveys received remote control signal to measuring pump control panel 0032, aviation plug 0033 conveys the control command of the external control equipment who connects to measuring pump control panel 0032, measuring pump control panel 0032 is according to received control signal and control command, start integral type closed loop step motor 0018 and injector driving motor 0023, make the liquid outlet of liquid feeding equipment pass through plane switching-over valve 001 and injector 002 intercommunication, solution in the liquid feeding equipment is through the liquid outlet by the back in being inhaled injector 002, the inlet of liquid feeding equipment passes through plane switching-over valve 001 and injector 002 intercommunication, the solution rethread plane switching-over valve 001 of storing in the injector 002 discharges to the liquid outlet of liquid feeding equipment, thus, the transfer of solution has just been realized.
The high-precision metering pump with large flux and capable of being remotely controlled comprises: the method mainly comprises the following steps: the device comprises a planar reversing valve 001, a sample injector 002, a metering pump control board 0032, a WIFI antenna 0031, an aviation plug 0033 and a metering pump section bar 004; the WIFI antenna 0031 and the aviation plug 0033 transmit the received remote control signal and a control instruction of external control equipment to the metering pump control board 0032, the metering pump control board 0032 starts the integrated closed-loop stepping motor 0018 and the sample injector driving motor 0023 according to the received control signal and the control instruction, so that a liquid outlet of the liquid adding equipment is communicated with the sample injector 002 through the planar reversing valve 001, after a solution in the liquid adding equipment is sucked into the sample injector 002 through the liquid outlet, a liquid inlet of the liquid adding equipment is communicated with the sample injector 002 through the planar reversing valve 001, and the solution stored in the sample injector 002 is discharged to the liquid outlet of the liquid adding equipment through the planar reversing valve 001; according to the invention, the solution movement is realized through a full-automatic design, and the remote control signal reception is realized by adopting a WIFI antenna, so that the problems of low manual pipetting efficiency, poor precision and incapability of remote control are solved.
As an embodiment of the present invention, referring to fig. 9 to 29:
the spool passage 00121 has a length and depth to accommodate both the first passage opening 0010101 and the third passage opening 0010103, or the second passage opening 0010102 and the third passage opening 0010103; the other end of the valve core 0012 protrudes outwards to form a valve core protruding portion 00122, the valve core protruding portion 00122 is cross-shaped, the valve core protruding portion 00122 and the end face of the valve core 0012 form a valve core sunken position 00123, and the number of the valve core sunken positions 00123 is four; the number of the valve core connecting sleeve bulges 00131 is four, and the valve core connecting sleeve bulges are evenly distributed on the end face of the valve core connecting sleeve 0013; the shape of the valve core connecting sleeve bulge 00131 is matched with that of the valve core sunken position 00123, the position of the valve core connecting sleeve bulge 00131 is opposite to that of the valve core sunken position 00123, so that the valve core connecting sleeve bulge 00131 is tightly placed in the valve core sunken position 00123, and the valve core connecting sleeve bulge 00131 rotates in the valve core sunken position 00123 to drive the valve core bulge 00122 to rotate, so that the valve core channel 00121 rotates;
the end face of the valve core connecting sleeve 0013 is provided with a through valve core connecting sleeve opening 00132, and the valve core connecting sleeve opening 00132 has a certain length so as to accommodate the input connecting shaft first protruding part 001411 and the input connecting shaft second protruding part 001412; the valve core connecting sleeve spring mounting holes 00133 are evenly distributed on the bottom surface surrounding the valve core connecting sleeve cavity 00134, the number of the valve core connecting sleeve spring mounting holes 00133 is the same as that of the compression springs 0015, and the positions of the valve core connecting sleeve spring mounting holes 00133 are opposite to that of the compression springs 0015; the input connecting shaft first protruding part 001411 and the input connecting shaft second protruding part 001412 are located on two sides of the input connecting shaft through hole 00142, and the outer walls of the input connecting shaft first protruding part 001411 and the input connecting shaft second protruding part 001412 are tightly attached to the inner wall of the valve core connecting sleeve opening 00132 respectively; an annular input connecting shaft ring 00143 is arranged on the annular outer wall of the input connecting shaft 0014, the annular input connecting shaft ring 00143 is used for placing an input connecting shaft sealing ring 00144, and an input connecting shaft sealing ring 00144 is tightly attached to the inner wall of the rear opening 001612 of the planar thrust bearing; the plane thrust bearing 00192 is positioned between the input connecting shaft first protruding part 001411 and the input connecting shaft second protruding part 001412 and the input connecting shaft annular groove 00143, and one surface of the plane thrust bearing 00192 is attached to the end surface of the compression spring 0015 exposed out of the valve core connecting sleeve spring mounting hole 00133;
the plane reversing valve 001 further comprises a plane valve motor fixing piece 00193 and a plane valve fixing piece 00191; the plane valve motor fixing piece 00193 is sleeved at the bottom end of a motor shaft of the integrated closed-loop stepping motor 0018, a plurality of through holes are formed in the plane valve motor fixing piece 00193, a plurality of plane thrust bearing mounting holes 00162 are formed in the plane valve mounting piece 0016 at the side of a backward opening 001612 of the plane thrust bearing, and the plane thrust bearing mounting holes 00162 are connected with the through holes formed in the plane valve motor fixing piece 00193 through screws, so that the plane valve mounting piece 0016 is fixedly mounted on the plane valve motor fixing piece 00193, and one ends of the plane thrust bearing forward opening 001611 of the plane valve mounting piece 0016 and the plane valve 0011, provided with a first channel opening 0010101, a second channel opening 0010102 and a third channel opening 0010103, are tightly attached to each other; the plane valve fixing part 00191 is sleeved on the periphery of the joint of the valve core 0012 and the valve core connecting sleeve 0013;
threads arranged on the inner wall of the first channel connecting sleeve 001011 are meshed with threads arranged on the outer wall of the protruding part of the first channel 00101, so that the first channel connecting sleeve 001011 is installed on the protruding part of the first channel 00101; the threads arranged on the inner wall of the second channel connecting sleeve 001021 are meshed with the threads arranged on the outer wall of the protruding part of the second channel 00102, so that the second channel connecting sleeve 001021 is installed on the protruding part of the second channel 00102; the plane reversing valve 001 further comprises a plane valve top cover 00194 and a plane valve top cover connecting piece 00195, wherein the plane valve top cover 00194 is installed at one end, which is not connected with the valve core 0012, of the plane valve 0011 through the plane valve top cover connecting piece 00195;
specifically, the working principle of the planar reversing valve 001 is as follows:
a first channel 00101 of the plane valve 0011 is connected with a liquid inlet of liquid adding equipment, a second channel 00102 is connected with a liquid outlet of the liquid adding equipment, and a third channel 00103 is connected with a sample injector 002;
when the liquid inlet of the liquid adding equipment needs to be communicated with the sample injector 002, a motor shaft of the integrated closed-loop stepping motor 0018 rotates in a specified direction, so that the input connecting shaft 0014 is driven to rotate in the specified direction, the input connecting shaft 0014 drives the valve core connecting sleeve 0013 to rotate in the specified direction, and the valve core connecting sleeve 0013 further drives the valve core 0012 to rotate in the specified direction, so that the first channel opening 0010101 and the third channel opening 0010103 are located in the valve core channel 00121, the first channel 00101 is communicated with the third channel 00103, and therefore the liquid inlet of the liquid adding equipment is communicated with the sample injector 002 through the first channel 00101 and the third channel 00103;
when the liquid outlet of the liquid adding equipment needs to be communicated with the sample injector 002, the motor shaft of the integrated closed-loop stepping motor 0018 rotates in the designated direction, so that the input connecting shaft 0014 is driven to rotate in the designated direction, the input connecting shaft 0014 drives the valve core connecting sleeve 0013 to rotate in the designated direction, the valve core connecting sleeve 0013 further drives the valve core 0012 to rotate in the designated direction, the second channel opening 0010102 and the third channel opening 0010103 are located in the valve core channel 00121, the second channel 0010102 is communicated with the third channel 00103, and therefore the liquid outlet of the liquid adding equipment is communicated with the sample injector 002 through the second channel 00102 and the third channel 00103.
As an embodiment of the present invention, referring to fig. 30 to 39:
the sample injector 002 further comprises a locking nut 3, wherein the locking nut 3 is used for locking the sealing sleeve 11 and the sealing gasket 13, so that the inner ring of the sealing sleeve 11 and the inner ring of the sealing gasket 13 are in tight contact with the plunger 1, and the sealing purpose is achieved; the sealing ring 12 is positioned between the sealing sleeve 11 and the sealing gasket 13 and used for fastening the sealing sleeve 11;
the liquid inlet device 4 comprises a second cylinder 41, the interior of the second cylinder 41 is a cavity for placing the plunger 1 and storing the solution, and one end of the second cylinder 41 is an opening for enabling the plunger 1 to enter and exit; the inner wall of the locking nut 3 is provided with a first thread groove 31; a protrusion 42 is arranged on the periphery of one end of the second column 41, and a second thread groove 44 is arranged on the outer surface of the protrusion 42; the inner wall of the protrusion 42 is provided with a first annular step 401 and a second annular step 402, the first annular step 401 is used for fixing the sealing sleeve 11, and the second annular step 402 is used for fixing the sealing gasket 13; the first thread groove 31 and the second thread groove 44 are mutually meshed, so that the sealing sleeve 11 and the sealing gasket 13 are locked by the locking nut 3 through the bulge 42, and the sealing ring 12 is in deformed interference fit, thereby realizing absolute sealing;
the other end of the second cylinder 41 protrudes outwards to form a liquid conveying part 43, a solution conveying hole is formed in the bottom of the liquid conveying part 43 and used for conveying a solution conveyed by an external pipeline into the second cylinder 41 and outputting the solution in the second cylinder 41 to the external pipeline, the liquid conveying part 43 has a certain length, and a thread groove is formed in the outer surface of the liquid conveying part 43 and is connected with a third channel 00103;
the plunger connector 2 comprises a first cylinder 22, one end of the first cylinder 22 is open to insert the plunger 1, a motor connecting part 21 protruding outwards is arranged in the middle of the upper surface 23 of the first cylinder 22 to be connected with a sample injector connecting part 00241, the motor connecting part 21 has a certain length, and the outer surface of the motor connecting part 21 is provided with an annular concave part 211; the inner part of the upper surface 23 forms a first contact surface 201, the inner wall of the first cylinder 22 forms a second contact surface 202, the first contact surface 201 is connected with the top end of the plunger 1, the second contact surface 202 is connected with the side wall of the top part of the plunger 1, and the parts of the first contact surface 201 and the second contact surface 202 connected with the plunger 1 are bonded through glue so as to fixedly connect the plunger 1 with the plunger connector 2.
Specifically, when the solution in the external pipeline of the first channel 00101 needs to be discharged to the external pipeline of the second channel 00102, the metering pump control board 0032 controls the integral closed-loop stepping motor 0018 to move to drive the planar valve 0011 to rotate so as to communicate the first channel 00101 with the third channel 00103, and meanwhile, the metering pump control board 0032 controls the sample injector to drive the motor 0023 to move so as to drive the plunger 1 to move, so that the solution in the external pipeline of the first channel 00101 is sucked into the liquid inlet device 4 through the third channel 00103; then, the metering pump control board 0032 controls the integrated closed-loop stepping motor 0018 to move so as to drive the plane valve 0011 to rotate, so that the second channel 00102 is communicated with the third channel 00103, and meanwhile, the metering pump control board 0032 controls the sample injector to drive the motor 0023 to move so as to drive the plunger 1 to move, so that the solution in the liquid inlet 4 is discharged to an external pipeline of the second channel 00102 through the third channel 00103;
similarly, when the solution in the external pipeline of the second channel 00102 needs to be discharged to the external pipeline of the first channel 00101, the metering pump control board 0032 controls the integral closed-loop stepping motor 0018 to move to drive the planar valve 0011 to rotate so that the second channel 00102 is communicated with the third channel 00103, and meanwhile, the metering pump control board 0032 controls the sample injector to drive the motor 0023 to move so as to drive the plunger 1 to move, so that the solution in the external pipeline of the second channel 00102 is sucked into the liquid inlet 4 through the third channel 00103; then, the metering pump control board 0032 drives the planar valve 0011 to rotate by controlling the movement of the integrated closed-loop stepping motor 0018, so that the first passage 00101 is communicated with the third passage 00103, and meanwhile, the metering pump control board 0032 drives the motor 0023 to move by controlling the sample injector to drive the plunger 1 to move, so that the solution in the liquid inlet device 4 is discharged to an external pipeline of the first passage 00101 through the third passage 00103.
As an embodiment of the present invention, referring to fig. 40 to 43, a left side wall of a metering pump profile 004 is provided with a through-going flat directional valve mounting port 0041 and an injector movable port 0042, a right side wall of the metering pump profile 004 is provided with a third outer cover mounting position 00434, wherein the flat directional valve mounting port 0041 and the injector movable port 0042 are located on the same side wall, a fourth outer cover mounting position 00435 is located on the other side wall, the flat directional valve mounting port 0041 is located above the injector movable port 0042, the flat directional valve mounting port 0041 is used for fixedly mounting a flat directional valve 001, the injector movable port 0042 is a vertical movement space of a plunger connector 2, and the fourth outer cover mounting position 00435 is used for mounting a fourth outer cover 00514; a photoelectric sensor slider mounting groove 00441 and a guide rail mounting position 0443 are respectively arranged on the inward two sides of the plane reversing valve mounting port 0041 and the sample injector movable port 0042, the photoelectric sensor slider mounting groove 00441 is used for mounting a photoelectric sensor slider 00516, and the guide rail mounting position 0443 is used for mounting a sample injector guide rail 00242; the middle positions of the photoelectric sensor slider mounting groove 00441 and the guide rail mounting position 0443 are baffle mounting positions 00442; the right side wall of the metering pump section 004 is provided with a control plate installation cavity 00445 for placing a metering pump control plate 0032, and the middle position of the left side wall and the right side wall of the metering pump section 004 is a motor position 00444 for accommodating an integrated closed-loop stepping motor 0018 and a sample injector driving motor 0023; the top end of the metering pump section 004 is provided with a second outer cover mounting position 00433 which is provided with a through hole for mounting a second outer cover 00512 through a screw; the bottom end of the metering pump section 004 is a third outer cover mounting position 00434 provided with a through hole for mounting a third outer cover 00513 through a screw; the outside of photosensor slider mounting groove 00441 forms first installation position 00431 of first enclosing cover, and the outside of control panel installation cavity 00445 forms first enclosing cover second installation position 00432, and first installation position 00431 of first enclosing cover and first enclosing cover second installation position 00432 are equipped with the through-hole respectively in order to pass through first enclosing cover 00511 of screw installation.
As an embodiment of the present invention, referring to fig. 3 to 8:
the large-flux remotely-controlled high-precision metering pump further comprises a first sample injector fixing piece 0021, a second sample injector fixing piece 0022 and a sample injector connecting piece 00241, wherein the first sample injector fixing piece 0021 is used for fixing the liquid conveying part 43 on the corresponding position of the outer side of the left side wall of the metering pump section 004, the second sample injector fixing piece 0022 is used for connecting the column connector 2 with a sample injector driving motor 0023 through a sample injector connecting piece 00241, one end of the sample injector connecting piece 00241 is fixed on the concave part 211 through a mounting screw, the other end of the second sample injector fixing piece 0022 penetrates through a sample injector movable opening 0042 and is fixed on one end of the sample injector connecting piece 00241 through the mounting screw, and the other end of the sample injector connecting piece 00241 is fixedly arranged on a motor shaft of the sample injector driving motor 0023; a motor shaft of the sample injector driving motor 0023 drives the sample injector connecting piece 00241 to move, and the sample injector connecting piece 00241 drives the sample injector second fixing piece 0022 to move so as to drive the plunger connector 2 to move up and down, so that the plunger connector 2 drives the plunger 1 to do reciprocating drawing movement;
the high-throughput, remotely-controllable, high-precision metering pump further comprises an injector first slide 00243 and an injector second slide 00244; one surface of the injector first slide block 00243 is mounted on a corresponding position of the injector connecting piece 00241, and the other surface of the injector first slide block 00243 is mounted on a corresponding position of the injector guide rail 00242; one side of the injector second slide block 00244 is mounted on a corresponding position of the injector connecting piece 00241, and the other side of the injector second slide block 00244 is mounted on a corresponding position of the injector guide rail 00242; the first injector slide block 00243 and the second injector slide block 00244 have a certain interval therebetween, and the first injector slide block 00243 and the second injector slide block 00244 are used for making the injector connector 00241 move smoothly along the injector guide rail 00242;
the large-flux remotely-controllable high-precision metering pump further comprises a photoelectric sensor 00515, wherein the photoelectric sensor 00515 is used for detecting the movement position of the second sample injector fixing piece 0022, one end of the photoelectric sensor 00515 is arranged on a photoelectric sensor sliding block 00516, and the other end of the photoelectric sensor 00515 is arranged on the sample injector connecting piece 00241 through a photoelectric sensor mounting piece 00517; the photoelectric sensor 00515 moves up and down by following the sample injector connecting piece 00241, so that the movement position of the second fixing piece 0022 of the sample injector is detected, and a detection signal is transmitted to the metering pump control board 0032, so that the metering pump control board 0032 can accurately control the start, operation and stop of the integrated closed-loop stepping motor 0018 and the sample injector driving motor 0023;
the high-throughput, remotely controllable, high-precision metering pump further comprises a first baffle 005151, a second baffle 005152, and a guard baffle 005153, located at a baffle mounting location 00442; the first baffle 005151 and the second baffle 005152 are buckled, and the protective baffle 005153 is arranged in a cavity formed by buckling the first baffle 005151 and the second baffle 005152; the first baffle 005151, the second baffle 005152 and the guard baffle 005153 are provided with through openings so that the other end of the injector second mount 0022 passes through to connect the injector connector 00241, and the guard baffle 005153 follows the moving direction of the injector second mount 0022 and moves up and down in the first baffle 005151 and the second baffle 005152; the first baffle 005151, the second baffle 005152 and the guard baffle 005153 are made of teflon.
Preferably, integral closed-loop stepper motor 0018 is a stepper motor and injector drive motor 0023 is a lift motor.
The metering pump control board 0032 and the aviation plug 0033 related to the technical scheme of the invention both adopt the existing and disclosed products or technologies, and the skilled person can easily find the existing and disclosed products or technologies to realize according to the functions of the metering pump control board 0032 and the aviation plug 0033 described in the technical scheme of the invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A high-throughput, remotely controllable, high precision metering pump, comprising:
planar reversing valve (001) comprising: the device comprises a plane valve (0011), a valve core (0012), a valve core connecting sleeve (0013), an input connecting shaft (0014), a compression spring (0015), an integrated closed-loop stepping motor (0018), a plane thrust bearing (00192) and a plane valve mounting piece (0016); the plane valve (0011) is used for connecting the liquid adding equipment and the sample injector (002), and comprises a first channel (00101), a second channel (00102), a third channel (00103), a first channel connecting sleeve (001011) and a second channel connecting sleeve (001021), wherein the first channel (00101) and the second channel (00102) are respectively connected with a liquid inlet or a liquid outlet of the liquid adding equipment, and the third channel (00103) is connected with the sample injector (002); the first channel connecting sleeve (001011) is arranged on the outward protruding part of the first channel (00101) to fix the connecting pipeline of the first channel (00101) and the liquid adding equipment; the second channel connecting sleeve (001021) is arranged on the outward protruding part of the second channel (00102) to fix the connecting pipeline of the second channel (00102) and the liquid adding equipment; the valve core (0012) is rotated to enable the first channel (00101) to be communicated with the third channel (00103), or the second channel (00102) is communicated with the third channel (00103); the valve core connecting sleeve (0013) is used for fixing the valve core (0012) and enabling the valve core (0012) to rotate; the input connecting shaft (0014) is used for driving the valve core connecting sleeve (0013) to rotate; the compression spring (0015) is used for applying certain pressure to the valve core (0012) so that the valve core (0012) is tightly attached to the plane valve (0011); the integrated closed-loop stepping motor (0018) is used for driving the input connecting shaft (0014) to rotate, so that the input connecting shaft (0014) drives the valve core connecting sleeve (0013) to rotate, and the valve core connecting sleeve (0013) drives the valve core (0012) to rotate; the plane thrust bearing (00192) is used for bearing pressure generated when a motor shaft of the integrated closed-loop stepping motor (0018) rotates so as to enable the input connecting shaft (0014) to rotate stably; the plane valve mounting part (0016) is used for fixing the valve core (0012) and the valve core connecting sleeve (0013); the flat valve (0011) is provided with a first channel opening (0010101), a second channel opening (0010102) and one end of a third channel opening (0010103) is attached to one end of the valve core (0012) provided with a valve core channel (00121), the other end of the valve core (0012) is attached to one end of the valve core connecting sleeve (0013) provided with a valve core connecting sleeve convex part (00131), one end of the input connecting shaft (0014) provided with a first convex part (001411) of an input connecting shaft and a second convex part (001412) of the input connecting shaft is arranged in a valve core connecting sleeve cavity (00134) formed by outward extension of the side wall of the other end of the valve core connecting sleeve (0013), a compression spring (0015) is arranged in a valve core connecting sleeve spring mounting hole (00133) arranged at the other end of the valve core connecting sleeve (0013), a flat thrust bearing (00192) is sleeved on the outer wall of the input end (0014), and a flat valve mounting piece (0016) is sleeved on the peripheries of the valve core (0012) and the valve core connecting shaft (0013), a motor shaft of the integrated closed-loop stepping motor (0018) is embedded in an input connecting shaft through hole (00142) of the input connecting shaft (0014); the plane valve (0011) and the valve core (0012) are made of corrosion-resistant Teflon materials;
an injector (002) for sucking and discharging a solution, comprising: the device comprises a liquid inlet device (4), a plunger (1), a plunger connector (2), a sealing sleeve (11), a sealing ring (12) and a sealing gasket (13); the liquid inlet device (4) is used for inputting, outputting and storing the solution, and the liquid inlet device (4) is made of Teflon material, has good swelling resistance and chemical stability, and can store the corrosive solution; the plunger (1) is positioned in the containing cavity of the liquid inlet device (4), the plunger (1) is used for pumping or discharging a solution into or out of the liquid inlet device (4) through reciprocating drawing movement, and the plunger (1) is made of zirconia materials, and is smooth in surface, wear-resistant and corrosion-resistant; the plunger connector (2) is used for fixing the plunger (1) and connecting the sample injector driving motor (0023) so that the sample injector driving motor (0023) drives the plunger (1) to do reciprocating drawing movement through the plunger connector (2); the sealing sleeve (11), the sealing ring (12) and the sealing gasket (13) are sleeved on the plunger (1) and used for sealing the opening of the plunger (1) and the liquid inlet device (4) to prevent the solution in the liquid inlet device (4) from leaking; the sealing sleeve (11), the sealing ring (12) and the sealing gasket (13) are made of Teflon materials;
the metering pump control board (0032) is electrically connected with the integrated closed-loop stepping motor (0018) and the sample injector driving motor (0023) respectively and is used for controlling the starting, running and stopping of the integrated closed-loop stepping motor (0018) and the sample injector driving motor (0023);
the WIFI antenna (0031) is electrically connected with the metering pump control board (0032) and is used for transmitting the received remote control signal to the metering pump control board (0032);
the number of the aviation plugs (0033) is multiple, one end of each aviation plug (0033) is electrically connected with the metering pump control board (0032), and the other end of each aviation plug (0033) is connected with external control equipment;
metering pump section bar (004) for installation and fixed plane switching-over valve (001), injector (002), metering pump control panel (0032).
2. A high-throughput, remotely controllable, high precision metering pump according to claim 1, characterized in that the spool passage (00121) has a length and depth to accommodate both the first passage opening (0010101) and the third passage opening (0010103), or the second passage opening (0010102) and the third passage opening (0010103); the other end of the valve core (0012) protrudes outwards to form a valve core protruding part (00122), the valve core protruding part (00122) is in a cross shape, valve core sunken positions (00123) are formed by the valve core protruding part (00122) and the end face of the valve core (0012), and the number of the valve core sunken positions (00123) is four; the number of the valve core connecting sleeve bulges (00131) is four, and the valve core connecting sleeve bulges are evenly distributed on the end face of the valve core connecting sleeve (0013); the shape of the valve core connecting sleeve bulge (00131) is matched with that of the valve core sunken position (00123), the position of the valve core connecting sleeve bulge (00131) is opposite to that of the valve core sunken position (00123), so that the valve core connecting sleeve bulge (00131) is tightly placed in the valve core sunken position (00123), and the valve core connecting sleeve bulge (00131) rotates in the valve core sunken position (00123) to drive the valve core bulge (00122) to rotate, so that the valve core channel (00121) rotates.
3. A large-flux remotely controllable high precision metering pump as claimed in claim 2 wherein the end face of the spool nipple (0013) is provided with a through spool nipple opening (00132), the spool nipple opening (00132) having a length to accommodate the input connecting shaft first protrusion (001411) and the input connecting shaft second protrusion (001412); the valve core connecting sleeve spring mounting holes (00133) are evenly distributed on the bottom surface surrounding a valve core connecting sleeve cavity (00134), the number of the valve core connecting sleeve spring mounting holes (00133) is the same as that of the compression springs (0015), and the positions of the valve core connecting sleeve spring mounting holes (00133) are opposite to that of the compression springs (0015); the first input connecting shaft protruding part (001411) and the second input connecting shaft protruding part (001412) are located on two sides of the through hole (00142) of the input connecting shaft, and the outer walls of the first input connecting shaft protruding part (001411) and the second input connecting shaft protruding part (001412) are tightly attached to the inner wall of the opening (00132) of the valve core connecting sleeve respectively; an input connecting shaft annular groove (00143) is formed in the annular outer wall of the input connecting shaft (0014), the input connecting shaft annular groove (00143) is used for placing an input connecting shaft sealing ring (00144), and the input connecting shaft sealing ring (00144) is tightly attached to the inner wall of a rear opening (001612) of the plane thrust bearing; the plane thrust bearing (00192) is positioned between the first protruding part (001411) of the input connecting shaft and the second protruding part (001412) of the input connecting shaft and the annular groove (00143) of the input connecting shaft, and one surface of the plane thrust bearing (00192) is attached to the end surface, exposed out of the valve core connecting sleeve spring mounting hole (00133), of the compression spring (0015).
4. A high-throughput, remotely controllable, high precision metering pump according to claim 3, wherein the planar reversing valve (001) further comprises a planar valve motor mount (00193) and a planar valve mount (00191); the plane valve motor fixing piece (00193) is sleeved at the bottom end of a motor shaft of an integrated closed-loop stepping motor (0018), a plurality of through holes are formed in the plane valve motor fixing piece (00193), a plurality of plane thrust bearing mounting holes (00162) are formed in the plane valve mounting piece (0016) at the side of a backward opening (001612) of a plane thrust bearing, the plane thrust bearing mounting holes (00162) are connected with the through holes formed in the plane valve motor fixing piece (00193) through screws, so that the plane valve mounting piece (0016) is fixedly mounted on the plane valve motor fixing piece (00193), and one end, provided with a first channel opening (0010101), a second channel opening (0010102) and a third channel opening (0010103), of the plane thrust bearing forward opening (001611) of the plane valve mounting piece (0016) and one end, provided with the first channel opening (0010101), the second channel opening (0010102) and the third channel opening (0010103) are tightly attached to each other; the plane valve fixing piece (00191) is sleeved on the periphery of the joint of the valve core (0012) and the valve core connecting sleeve (0013);
threads arranged on the inner wall of the first channel connecting sleeve (001011) are meshed with threads arranged on the outer wall of the protruding part of the first channel (00101), so that the first channel connecting sleeve (001011) is installed on the protruding part of the first channel (00101); threads arranged on the inner wall of the second channel connecting sleeve (001021) are meshed with threads arranged on the outer wall of the protruding part of the second channel (00102), so that the second channel connecting sleeve (001021) is installed on the protruding part of the second channel (00102); the plane reversing valve (001) further comprises a plane valve top cover (00194) and a plane valve top cover connecting piece (00195), and the plane valve top cover (00194) is installed at one end, not connected with the valve core (0012), of the plane valve (0011) through the plane valve top cover connecting piece (00195).
5. The high-throughput high-precision metering pump capable of being remotely controlled according to claim 4, characterized in that the sample injector (002) further comprises a locking nut (3), the locking nut (3) is used for locking the sealing sleeve (11) and the sealing gasket (13) so that the inner ring of the sealing sleeve (11) and the inner ring of the sealing gasket (13) are in close contact with the plunger (1) to achieve the sealing purpose; the sealing ring (12) is positioned between the sealing sleeve (11) and the sealing gasket (13) and used for fastening the sealing sleeve (11);
the liquid inlet device (4) comprises a second cylinder (41), the interior of the second cylinder (41) is a cavity for placing the plunger (1) and storing solution, and one end of the second cylinder (41) is an opening for enabling the plunger (1) to enter and exit; the inner wall of the locking nut (3) is provided with a first thread groove (31); a protruding part (42) is arranged on the periphery of one end of the second column body (41), and a second thread groove (44) is arranged on the outer surface of the protruding part (42); the inner wall of the bulge (42) is provided with a first annular step (401) and a second annular step (402), the first annular step (401) is used for fixing the sealing sleeve (11), and the second annular step (402) is used for fixing the sealing gasket (13); the first thread groove (31) and the second thread groove (44) are mutually meshed, so that the locking nut (3) locks the sealing sleeve (11) and the sealing gasket (13) through the bulge (42), and the sealing ring (12) is in deformation interference fit, so that absolute sealing is realized;
the other end of the second column body (41) protrudes outwards to form a liquid conveying part (43), a solution conveying hole is formed in the bottom of the liquid conveying part (43), the solution conveying hole is used for conveying a solution conveyed by an external pipeline into the second column body (41) and outputting the solution in the second column body (41) to the external pipeline, the liquid conveying part (43) has a certain length, and a threaded groove is formed in the outer surface of the liquid conveying part (43) to be connected with a third channel (00103);
the plunger connector (2) comprises a first cylinder (22), one end of the first cylinder (22) is provided with an opening for placing the plunger (1), the middle of the upper surface (23) of the first cylinder (22) is provided with a motor connecting part (21) which protrudes outwards to be connected with the sample injector connecting part (00241), the motor connecting part (21) has a certain length, and the outer surface of the motor connecting part (21) is provided with an annular sunken part (211); a first contact surface (201) is formed inside the upper surface (23), a second contact surface (202) is formed on the inner wall of the first cylinder (22), the first contact surface (201) is connected with the top end of the plunger (1), the second contact surface (202) is connected with the side wall of the top of the plunger (1), and the parts of the first contact surface (201) and the second contact surface (202) connected with the plunger (1) are bonded through glue so that the plunger (1) is fixedly connected with the plunger connector (2).
6. A large-flux remotely-controllable high-precision metering pump as claimed in claim 5, characterized in that the left side wall of the metering pump profile (004) is provided with a through plane reversing valve mounting port (0041) and a sample injector movable port (0042), the right side wall of the metering pump profile (004) is provided with a third outer cover mounting position (00434), wherein the plane reversing valve mounting port (0041) and the sample injector movable port (0042) are located on the same side wall, the fourth outer cover mounting position (00435) is located on the other side wall, the plane reversing valve mounting port (0041) is located above the sample injector movable port (0042), the plane reversing valve mounting port (0041) is used for fixedly mounting the plane reversing valve (001), the sample injector movable port (0042) is an up-down movement space of the column connector (2), and the fourth outer cover mounting position (00435) is used for mounting the fourth outer cover (00514); a photoelectric sensor slider mounting groove (00441) and a guide rail mounting position (0443) are respectively arranged on the inward two sides of the plane reversing valve mounting port (0041) and the sample injector movable port (0042), the photoelectric sensor slider mounting groove (00441) is used for mounting a photoelectric sensor slider (00516), and the guide rail mounting position (0443) is used for mounting a sample injector guide rail (00242); the middle positions of the photoelectric sensor slider mounting groove (00441) and the guide rail mounting position (0443) are baffle mounting positions (00442); a control plate installation cavity (00445) is formed in the right side wall of the metering pump section bar (004) to place a metering pump control plate (0032), and the middle position of the left side wall and the right side wall of the metering pump section bar (004) is a motor position (00444) to accommodate an integrated closed-loop stepping motor (0018) and a sample injector driving motor (0023); the top end of the metering pump section bar (004) is a second outer cover mounting position (00433) which is provided with a through hole for mounting a second outer cover (00512) through a screw; the bottom end of the metering pump section bar (004) is a third outer cover mounting position (00434) which is provided with a through hole for mounting the third outer cover (00513) through a screw; the outside of photoelectric sensor slider mounting groove (00441) forms first installation position of first enclosing cover (00431), and the outside of control panel installation cavity (00445) forms first enclosing cover second installation position (00432), and first installation position of first enclosing cover (00431) and first enclosing cover second installation position (00432) are equipped with the through-hole respectively in order to pass through first enclosing cover of screw installation (00511).
7. The large-flux remotely-controlled high-precision metering pump according to claim 6, further comprising a first sample injector fixing member (0021), a second sample injector fixing member (0022), and a sample injector connecting member (00241), wherein the first sample injector fixing member (0021) is used for fixing the liquid conveying part (43) at a corresponding position on the outer side of the left sidewall of the metering pump profile (004), the second sample injector fixing member (0022) is used for connecting the sample connector (2) with the sample injector driving motor (0023) through the sample injector connecting member (00241), one end of the sample injector connecting member (00241) is fixed on the recess part (211) through a mounting screw, the other end of the sample injector second fixing member (0022) passes through the sample injector movable port (0042) and is fixed at one end of the sample injector connecting member (00241) through the mounting screw, the other end of the sample injector connecting piece (00241) is fixedly arranged on a motor shaft of a sample injector driving motor (0023); the motor shaft of the sample injector driving motor (0023) drives the sample injector connecting piece (00241) to move, and then the sample injector connecting piece (00241) drives the sample injector second fixing piece (0022) to move so as to drive the plunger connector (2) to move up and down, so that the plunger connector (2) drives the plunger (1) to do reciprocating drawing movement.
8. A large-flux remotely controllable high precision metering pump according to claim 7 further comprising a first injector slide (00243) and a second injector slide (00244); one surface of the sampler first slide block (00243) is arranged on a position corresponding to the sampler connecting piece (00241), and the other surface of the sampler first slide block (00243) is arranged on a position corresponding to the sampler guide rail (00242); one surface of the sample injector second slide block (00244) is arranged on a corresponding position of the sample injector connecting piece (00241), and the other surface of the sample injector second slide block (00244) is arranged on a corresponding position of the sample injector guide rail (00242); the first injector slide (00243) and the second injector slide (00244) have a certain interval therebetween, and the first injector slide (00243) and the second injector slide (00244) are used for smoothly moving the injector connector (00241) along the injector guide rail (00242).
9. A large-flux remotely controllable high precision metering pump according to claim 8 further comprising a photosensor (00515), the photosensor (00515) being used to detect the moving position of the second injector mount (0022), one end of the photosensor (00515) being mounted on a photosensor slider (00516), the other end of the photosensor (00515) being mounted on the injector mount (00241) via a photosensor mount (00517); the photoelectric sensor (00515) moves up and down by following the sample injector connecting piece (00241), so that the movement position of the second fixing piece (0022) of the sample injector is detected, and a detection signal is transmitted to the metering pump control board (0032), so that the metering pump control board (0032) can accurately control the starting, running and stopping of the integrated closed-loop stepping motor (0018) and the sample injector driving motor (0023).
10. A large-flux remotely controllable high precision metering pump according to claim 9, further comprising a first baffle (005151), a second baffle (005152), and a guard baffle (005153) at a baffle mounting location (00442); the first baffle (005151) and the second baffle (005152) are buckled, and the protective baffle (005153) is arranged in a cavity formed by buckling the first baffle (005151) and the second baffle (005152); the first baffle (005151), the second baffle (005152) and the protective baffle (005153) are provided with through openings so that the other end of the sample injector second fixing piece (0022) penetrates through the through openings to be connected with the sample injector connecting piece (00241), and the protective baffle (005153) moves up and down in the first baffle (005151) and the second baffle (005152) along the movement direction of the sample injector second fixing piece (0022); the first baffle (005151), the second baffle (005152), and the protective baffle (005153) are made of Teflon.
CN202111287785.1A 2021-11-02 2021-11-02 But high accuracy metering pump of big flux remote control Active CN113833621B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085171A2 (en) * 1982-01-29 1983-08-10 The Perkin-Elmer Corporation Solvent delivery system
CN101709693A (en) * 2009-12-02 2010-05-19 公安部第一研究所 Precision plunger metering pump
CN108286425A (en) * 2018-04-16 2018-07-17 陕西明特石油技术有限公司 The accurate quantitative filling device of the more pit shaft desulfurizing agents of remote control well group and charging method
CN210829625U (en) * 2019-09-27 2020-06-23 平顶山市神马万里化工股份有限公司 Driving device for linkage of multiple pump heads
CN112814882A (en) * 2020-12-31 2021-05-18 深圳市弗赛特科技股份有限公司 Electric chemical agent injection system capable of automatically adjusting flow

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085171A2 (en) * 1982-01-29 1983-08-10 The Perkin-Elmer Corporation Solvent delivery system
CN101709693A (en) * 2009-12-02 2010-05-19 公安部第一研究所 Precision plunger metering pump
CN108286425A (en) * 2018-04-16 2018-07-17 陕西明特石油技术有限公司 The accurate quantitative filling device of the more pit shaft desulfurizing agents of remote control well group and charging method
CN210829625U (en) * 2019-09-27 2020-06-23 平顶山市神马万里化工股份有限公司 Driving device for linkage of multiple pump heads
CN112814882A (en) * 2020-12-31 2021-05-18 深圳市弗赛特科技股份有限公司 Electric chemical agent injection system capable of automatically adjusting flow

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