Summary of the invention
The technical problem to be solved in the present invention is to provide that a kind of volume is little, automaticity is high, is suitable for forming the automatic sampling gun of multi-channel loading device.
Automatic sampling gun of the present invention, comprise on unit mounting rod under mounting rod and unit, on described unit, the lateral surface of mounting rod is fixedly connected with linear slider, on the inner surface that on unit, mounting rod is relative with mounting rod under unit, be fixedly connected with respectively upper rail and lower guideway, on unit, wherein one end of mounting rod is horizontally installed with vertical drive motor, active synchronization belt wheel is installed on the output shaft of described vertical drive motor, on described unit, the other end of mounting rod is provided with driven synchronous pulley, on described active synchronization belt wheel and driven synchronous pulley, be set with Timing Belt, under described unit, the upper end of mounting rod is all fixedly connected with contiguous block, on described upper contiguous block, top shoe is all installed, described top shoe is slidably arranged on corresponding upper rail, on described unit, the lower end of mounting rod is all installed with lower connecting block, sliding block is all installed on described lower connecting block, described sliding block is slidably arranged on corresponding lower guideway, described Timing Belt fixes with corresponding upper contiguous block,
Under described unit, the outside of mounting rod is all fixedly connected with support frame, described support frame comprises and is separately fixed at the upper support bar on mounting rod and lower support bar under unit, and be fixedly connected on the fixed bar between upper support bar and lower support bar, linear drive apparatus is all installed in described support frame, on described parts moving linearly, be fixedly connected with one and drive connecting plate, the stroke of described driving connecting plate is between upper support bar and lower support bar, in described lower support framework, be also provided with syringe pump, the pump housing of described syringe pump is fixedly connected with lower support bar, the piston rod of syringe pump is fixedly connected with driving connecting plate,
Under described unit, the lower end of mounting rod is fixedly connected with injection pump seat, the upper surface of described injection pump seat all offers installing hole, lower surface all offers lower installing hole away from a side of mounting rod under unit, the lower end of described syringe pump is arranged in installing hole, in described each lower installing hole, sample needle is installed, described syringe pump is connected by the injection pipeline in injection pump seat with the internal duct of sample needle, described injection pump seat upper surface offers installation of sensors hole, the lower end in described installation of sensors hole is connected with injection pipeline, installation of sensors is installed with pressure sensor in hole, the induction end of described pressure sensor is downwards towards injection pipeline, pressure sensor is connected with electrical control gear by holding wire.
Automatic sampling gun of the present invention, wherein said linear drive apparatus comprises spindle motor, leading screw and feed screw nut, described spindle motor is fixedly connected on lower support bar, the upper end of described leading screw is arranged in upper support bar by bearing, the lower end of leading screw is connected with the output shaft of spindle motor, and described feed screw nut is arranged on leading screw and is fixedly connected with driving connecting plate as parts moving linearly.
Automatic sampling gun of the present invention, is also fixedly connected with balancing pole between wherein said upper support bar and lower support bar, described balancing pole is through the middle part of described driving connecting plate.
Automatic sampling gun of the present invention, on the upper surface of wherein said lower support bar, be fixedly connected with approach switch, on the lower surface of described driving connecting plate, be fixedly connected with magnet steel, the position of described magnet steel is corresponding with approach switch, and described approach switch is for controlling the break-make of spindle motor.
Automatic sampling gun of the present invention, the output shaft of wherein said spindle motor is connected with leading screw by shaft coupling.
Automatic sampling gun of the present invention, between wherein said sample needle and injection pump seat, dress is installed and gets TIPS checkout gear, described dress is got TIPS checkout gear and is comprised detection steel disc and detecting sensor, described detection steel disc comprises sliding cylinder, be positioned at the detection head and the detection sensing chip that is positioned at sliding cylinder upper end of sliding cylinder lower end, described sliding cylinder is sleeved on sample needle, detection head is fixedly connected on the lower surface of sliding cylinder, and have along the radially outer projection of sliding cylinder, the internal diameter of described protrusion distance detection head axis is slightly less than the external diameter of TIPS, the external diameter of protrusion distance detection head axis is slightly larger than the external diameter of TIPS, described detection sensing chip is fixedly connected on the upper surface of sliding cylinder, detect sensing chip corresponding with the induction region of detecting sensor, described detecting sensor is fixedly installed in injection pump seat, the lower surface of described injection pump seat offers and holds the groove that detects sensing chip.
Automatic sampling gun of the present invention, on the inwall of wherein said groove, be provided with limited post, on described detection sensing chip, offer spacing slotted hole longitudinally, described limited post is positioned in the middle of spacing slotted hole, when the relative sample needle of described sliding cylinder slides up and down, described limited post relatively slides up and down in spacing slotted hole.
Automatic sampling gun of the present invention, on wherein said unit, the top of mounting rod is fixedly connected with upper unit controls plate, under described unit, the top of mounting rod is fixedly connected with lower unit control panel, between described upper unit controls plate and lower unit control panel, by soft arranging wire, be electrically connected to, under described unit, on a side of mounting rod, offer downward cabling groove, on described unit, on a side of mounting rod, offer upward wiring groove from top to bottom.
Automatic sampling gun of the present invention, the notch place of wherein said downward cabling groove and upward wiring groove is coated with respectively trough pressing plate.
Automatic sampling gun of the present invention, is fixedly connected with extension spring upper hanging plate on wherein said upper unit controls plate, and described extension spring upper hanging plate is connected with the upper end of reset tension spring, and the lower end of described reset tension spring is connected with lower unit control panel.
After automatic sampling gun of the present invention adopts such scheme, by controlling vertical drive motor, drive Timing Belt to rotate, because Timing Belt is fixedly connected with upper contiguous block, upper contiguous block moves up and down along with the rotation of Timing Belt, thereby top shoe and sliding block are slided respectively on upper rail and lower guideway, because mounting rod on unit is to be fixedly mounted on equipment, because mounting rod under this element just moves up and down on y direction, on unit between mounting rod and mounting rod under unit 2 are connected makes under unit the motion of mounting rod more steady; By the control linear drive apparatus form of outputing power, be converted into parts moving linearly and between upper support bar and lower support bar, carry out rectilinear motion, drive connecting plate the rectilinear motion of linear parts to be passed to the piston rod of syringe pump, by the relative syringe pump of piston rod move up and down to realize the taking out of sample loading gun, discharge opeing is moved; Injection pipeline between syringe pump and sample needle is shortened as much as possible, reduce the dead volume of injection pipeline in mount pad, thereby reduced Volume Changes that in injection pipeline, gas Yin Wendu, pressure produce to sample needle is taken out, the accuracy of lifting rate produces impact; Pressure sensor is arranged on the top of injection pump seat, and its induction end arranges down, is positioned at the top of injection pipeline, even if there is liquid to enter injection pipeline from sample needle, also can not flow into induction end, can not cause damage to pressure sensor.
Dress is also installed in automatic sampling gun of the present invention and gets TIPS checkout gear, when the termination of sample needle, dress is got upper TIPS, the upper surface of TIPS can be inconsistent with the projection that detects steel disc bottom, promoting to detect steel disc moves up, the detection sensing chip that detects steel disc top can enter the induction region of detecting sensor, thereby send instruction to main control part, carries out further work; If TIPS is got in the termination of sample needle not dress; detecting steel disc can remain on original position; detect sensing chip and do not enter the induction region of detecting sensor; therefore main control part, with regard to not sending the instruction of carrying out further work to sample loading gun, has played effective protective effect to loading device.
The top and bottom of the reset tension spring in automatic sampling gun of the present invention are separately fixed on fixing upper unit controls plate and movable lower unit control panel, lower unit control panel and sample needle are all fixed under the unit that can slide up and down on mounting rod, under driver element during the unexpected power-off of motor of mounting rod, reset tension spring provides a pulling force making progress, the mounting rod shock table top that drops downwards under anti-stop element; Meanwhile, when under electric-motor drive unit, mounting rod moves upward, the reset tension spring being stretched can also provide an assisted Extraction pulling force making progress, and reduces the load of motor.
Under unit in automatic sampling gun of the present invention, on mounting rod and unit, on mounting rod, offer respectively downward cabling groove and upward wiring groove, wiring on automatic sampling gun can be arranged in downward cabling groove and upward wiring groove, avoid drawing extension phenomenon with adjacent automatic sampling gun and other devices.
Below in conjunction with accompanying drawing, automatic sampling gun of the present invention is described further.
The specific embodiment
As shown in Figure 1, automatic sampling gun of the present invention comprises on unit mounting rod 6 under mounting rod 5 and unit, on unit, the lateral surface of mounting rod 5 is fixedly connected with linear slider, is fixedly connected with respectively upper rail 7 and lower guideway 8 on the inner surface that on unit, mounting rod 5 is relative with mounting rod under unit 6.On unit, the upper end of mounting rod 5 is horizontally installed with vertical drive motor 9, active synchronization belt wheel 10 is installed on the output shaft of vertical drive motor 9, on unit, the lower end of mounting rod 5 is provided with driven synchronous pulley 11, on active synchronization belt wheel 10 and driven synchronous pulley 11, is set with Timing Belt 12.Under unit, the upper end of mounting rod 6 is all fixedly connected with contiguous block 13, on upper contiguous block 13, top shoe 14 is all installed, top shoe 14 is slidably arranged on corresponding upper rail 7, on unit, the lower end of mounting rod 5 is all installed with lower connecting block 15, sliding block 16 is all installed on lower connecting block 15, sliding block 16 is slidably arranged on corresponding lower guideway 8, and Timing Belt 12 fixes with corresponding upper contiguous block 13.
As shown in Figure 2, on unit, the top of mounting rod 5 is fixedly connected with upper unit controls plate 1, and under unit, the top of mounting rod 6 is fixedly connected with lower unit control panel 2, and upper unit controls plate 1 is electrically connected to by soft arranging wire between the surface relative with lower unit control panel 2.Under unit, on a side of mounting rod 6, offer downward cabling groove 3, on unit, on a side of mounting rod 5, offer upward wiring groove 4 from top to bottom, the notch place of downward cabling groove 3 and upward wiring groove 4 is coated with respectively trough pressing plate 46.On upper unit controls plate 1, be fixedly connected with extension spring upper hanging plate 47, extension spring upper hanging plate 47 is connected with the upper end of reset tension spring 48, and the lower end of reset tension spring 48 is connected with lower unit control panel 2.
As shown in Figure 3, under unit, the outside of mounting rod 6 is all fixedly connected with support frame, support frame comprises and is separately fixed at the upper support bar on mounting rod 6 17 and lower support bar 18 under unit, and be fixedly connected on the fixed bar 19 between upper support bar 17 and lower support bar 18, linear drive apparatus is all installed in support frame, linear drive apparatus comprises spindle motor 20, leading screw 21 and feed screw nut 22, spindle motor 20 is fixedly connected on lower support bar 18, the upper end of leading screw 21 is arranged in upper support bar 17 by bearing, the lower end of leading screw 21 is connected with the output shaft of spindle motor 20 by shaft coupling 30, feed screw nut 22 is arranged on leading screw 21 and is fixedly connected with driving connecting plate 23 as parts moving linearly.Drive the stroke of connecting plate 23 between upper support bar 17 and lower support bar 18, be also provided with syringe pump in lower support framework, the pump housing 24 of syringe pump is fixedly connected with lower support bar 18, and the piston rod 25 of syringe pump is fixedly connected with driving connecting plate 23.
Between upper support bar 17 and lower support bar 18, be also fixedly connected with balancing pole 34, balancing pole 34 is through the middle part that drives connecting plate 23.On the upper surface of lower support bar 18, be fixedly connected with approach switch 35, on the lower surface of driving connecting plate 23, be fixedly connected with magnet steel 36, the position of magnet steel 36 is corresponding with approach switch 35, and approach switch 35 is for controlling the break-make of spindle motor 20.
As shown in Figure 4, under unit, the lower end of mounting rod 6 is fixedly connected with injection pump seat 26, the upper surface of injection pump seat 26 all offers installing hole 27, lower surface all offers lower installing hole 28 away from a side of mounting rod under unit 6, the lower end of syringe pump is arranged in installing hole 27, in each lower installing hole 28, sample needle 29 is installed, syringe pump is connected by the injection pipeline 31 in injection pump seat 26 with the internal duct of sample needle 29, injection pump seat 26 upper surfaces offer installation of sensors hole 32, the lower end in installation of sensors hole 32 is connected with injection pipeline 31, in installation of sensors hole 32, be installed with pressure sensor 33, the induction end of pressure sensor 33 is downwards towards injection pipeline 31, pressure sensor 33 is connected with electrical control gear by holding wire.
As shown in Figure 5, between sample needle 29 and injection pump seat 26, dress is installed and gets TIPS checkout gear, dress is got TIPS checkout gear and is comprised detection steel disc 37 and detecting sensor 38.Detect steel disc 37 and comprise sliding cylinder 39, be positioned at the detection head 40 and the detection sensing chip 41 that is positioned at sliding cylinder 39 upper ends of sliding cylinder 39 lower ends, sliding cylinder 39 is sleeved on sample needle 29, detection head 40 is fixedly connected on the lower surface of sliding cylinder 39, and have along the radially outer projection 42 of sliding cylinder 39, projection 42 is slightly less than the external diameter of TIPS apart from the internal diameter of detection head 40 axis, projection 42 is slightly larger than the external diameter of TIPS apart from the external diameter of detection head 40 axis, detecting sensing chip 41 is fixedly connected on the upper surface of sliding cylinder 39, detect sensing chip 41 corresponding with the induction region of detecting sensor 38, detecting sensor 38 is fixedly installed in injection pump seat 26, the lower surface of injection pump seat 26 offers and holds the groove 43 that detects sensing chip 41.On the inwall of groove 43, be provided with limited post 44, detect on sensing chip 41 and offer spacing slotted hole 45 longitudinally, limited post 44 is positioned in the middle of spacing slotted hole 45, and when the relative sample needle 29 of sliding cylinder 39 slides up and down, limited post 44 slides up and down relatively spacing slotted hole 45 is interior.
As shown in Figure 6, when the termination of sample needle 29, dress is got upper TIPS49, the upper surface of TIPS49 can be inconsistent with the projection 42 that detects steel disc 37 bottoms, promoting to detect steel disc 37 moves up, the detection sensing chip 41 that detects steel disc 37 tops can enter the induction region of detecting sensor 38, thereby send instruction to main control part, carries out further work; If TIPS49 is got in the termination of sample needle 29 not dress; detecting steel disc 37 can remain on original position; detect sensing chip 41 and do not enter the induction region of detecting sensor 38; therefore main control part, with regard to not sending the instruction of carrying out further work to sample loading gun, has played effective protective effect to loading device.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection domain of the claims in the present invention book.