CN207946252U - A kind of automatic injection pump - Google Patents

Abstract

The utility model is related to a kind of automatic injection pumps, including main vertical frame, the first driving mechanism, the second driving mechanism, rotary valve, syringe and the push rod arranged vertically, first driving mechanism is placed in the side of main vertical frame, push rod is placed in side of the main vertical frame far from the first driving mechanism, first driving mechanism is connect with push rod, and the first driving mechanism drives push rod along main vertical frame vertical shift；Second driving mechanism is placed in the upper end of the first driving mechanism, and rotary valve is placed in the top of push rod, and the second driving mechanism is connect with rotary valve；Syringe is placed in the lower end of rotary valve, and is connect with rotary valve；Syringe is placed in the lower end of rotary valve, and syringe is connect with rotary valve；Syringe is connect with push rod, and push rod vertical shift drives the piston movement of syringe, syringe to carry out imbibition and drain by rotary valve.Compared with the prior art, the utility model realizes push rod constant velocity linear's displacement, stablizes movement, realizes the accurate at the uniform velocity sampling injection of injection.

Description

A kind of automatic injection pump

Technical field

The utility model is related to liquid sampling technical field, more particularly to a kind of automatic injection pump.

Background technology

In clinical examination and lab analysis, it is often necessary to liquid sample and reagent progress are quantitatively drawn, distributed, The fluid treatment operations such as mixing, liquid volume to be treated is typically small, the accuracy and precision requirement to liquid shifting equipment It is higher.Liquid-transfering gun can realize the accurate sampling of micro liquid, but still need a large amount of manual operations, not only take and be also susceptible to Error.

Utility model content

The purpose of this utility model is to provide a kind of automatic injection pump, the technical problem to be solved is that：Liquid-transfering gun can be real The accurate sampling of existing micro liquid, but still a large amount of manual operations are needed, it not only takes and is also susceptible to error.

The technical solution that the utility model solves above-mentioned technical problem is as follows：A kind of automatic injection pump, including arrange vertically Main vertical frame, the first driving mechanism, the second driving mechanism, rotary valve, syringe and push rod, first driving mechanism is placed in institute The side of main vertical frame is stated, the push rod is placed in side of the main vertical frame far from first driving mechanism, first driving The output end of mechanism is connect with the push rod, and the output end of first driving mechanism drives the push rod to be moved vertically along main vertical frame It is dynamic；

Second driving mechanism is placed in the upper end of first driving mechanism, and the rotary valve is placed in the upper of the push rod Side, the output end of second driving mechanism are connect with the rotary valve, and the rotary valve is driven to rotate；

The syringe is placed in the lower end of the rotary valve, and is connect with the rotary valve；The syringe is placed in described The lower end of rotary valve, the dispensing end of the syringe are threadedly coupled with the rotary valve；The piston end of the syringe with it is described Push rod is threadedly coupled, and the push rod vertical shift drives the piston of the syringe to move, and syringe is inhaled by rotary valve Liquid and drain.

The utility model has the beneficial effects that：First driving mechanism realizes push rod constant velocity linear's displacement, stablizes movement, realizes The accurate at the uniform velocity sampling injection of injection；Using being threadedly coupled, replaceable not co-content syringe is realized different at syringe both ends Volume liquid divides sample；Using rotary valve, it can be achieved that cleaning solution and point turning liquid and passing through different conduits；First driving mechanism and Two driving mechanism longitudinal arrangements so that the present apparatus has the features such as small, light-weight, has extensive market prospects.

Based on the above technical solution, the utility model can also do following improvement.

Further, first driving mechanism includes the first driving motor, lead screw and synchronous belt, first driving motor It is fixedly connected with the main vertical frame by motor rack；The output end of first driving motor straight up, and is set with first Gear, the lead screw are vertically placed in the main vertical frame, and the upper and lower part of the lead screw is rotatablely connected with the main vertical frame； Second gear is set on the top of the lead screw, the synchronous belt is sleeved in the first gear and second gear；The silk Be set on bar can along the bogie of lead screw vertical shift, the one end of the push rod pass through the main vertical frame by fast pulley with The bogie connection；

The output shaft of first driving motor drives the first gear rotation, the first gear to be driven by synchronous belt The dynamic second gear rotation, the second gear drive lead screw rotation, the lead screw to drive the bogie along the lead screw Vertical shift, the bogie drive the push rod along main vertical frame vertical shift by fast pulley.

Advantageous effect using above-mentioned further scheme is：First driving motor is used as driving original paper using stepper motor, Bogie is driven to realize that constant velocity linear's displacement, drive push away by first gear, synchronous belt, second gear and the constant large torque of lead screw Bar stablizes movement vertically, realizes accurate at the uniform velocity sucking and the exhaustjet liquid of liquid.

Further, the guide rod that setting is arranged vertically in the main vertical frame, the guide rod are in the side of the lead screw；It is described The end sleeve that push rod is connect with bogie is on the guide rod, and push rod is along the guide rod vertical shift.

Advantageous effect using above-mentioned further scheme is：Guide rod, which can be realized, is oriented to the precision of push rod, realizes liquid Accurate at the uniform velocity sucking and exhaustjet liquid.

Further, catch is provided on the bogie, the catch is fixedly connected by screw with the bogie；Institute The side for stating main vertical frame is fixedly connected with control panel, and optoelectronic switch is equipped on the control panel, first driving motor Sending end is connect by the optoelectronic switch with power supply；When the bogie is moved to along lead screw close to the top of the lead screw, The catch is contacted with the optoelectronic switch, and the optoelectronic switch is powered off.

Advantageous effect using above-mentioned further scheme is：The first driving motor can be automatically controlled to start and stop, being promoted Accuracy and percent of automatization avoid manual operation from causing to slip up.

Further, second driving mechanism includes encoder and the second driving motor, the signal output of the encoder The signal input part of end and second driving motor by connection, with the main vertical frame fix by second driving motor Connection；The output shaft of second driving motor is connect across the main vertical frame with the rotary valve, drive the rotary valve into Row operating.

Advantageous effect using above-mentioned further scheme is：The output end that encoder can be precisely controlled the second driving motor turns Dynamic angle, promotes accuracy and percent of automatization, manual operation is avoided to cause to slip up.

Further, the rotary valve includes valve body and spool, and the valve body is cylindrical-shaped structure, and solid with the main vertical frame Fixed connection；It is radially provided with injection canal, first passage and second channel in the valve body, chamber is provided in the valve body One end of body, the injection canal, first passage and second channel is connected to the cavity, and the injection canal, first are led to The other end of road and second channel is connected to the periphery of valve body；The injection canal be in the port in valve body periphery with The dispensing end of the syringe is threadedly coupled；

The spool is placed in the cavity, and with the output axis connection of second driving motor, the second driving motor Output shaft drive the spool along the valve body axial-rotation；The spool is close to the injection canal, first passage and The cylindrical structure in end in two channels, and third through-hole and fourth hole are radially provided in the end, the third One end of through-hole and fourth hole intersects at the axle center of the end, and the other end of the third through-hole and fourth hole is connected to The periphery of the end.

Advantageous effect using above-mentioned further scheme is：The accurate of injection and exhaustjet liquid can be promoted using rotary valve Property, high degree of automation reduces human error.

Further, the angle between the injection canal and first passage is 150 degree, the injection canal and second channel Between angle be 150 degree, the angle between the first passage and second channel is 60 degree.

Further, the angle between the third through-hole and fourth hole is 150 degree.

Advantageous effect using above-mentioned further scheme is：Angle between third through-hole and fourth hole can make injection logical Road is precisely connected to first passage, or injection canal is made precisely to be connected to second channel, promotes control convenience.

Description of the drawings

Fig. 1 is a kind of front view of automatic injection pump of the utility model；

Fig. 2 is a kind of front view of automatic injection pump of the utility model；

Fig. 3 be the utility model main vertical frame, the first driving mechanism and control panel structural schematic diagram；

Fig. 4 be the utility model main vertical frame, the first driving mechanism and control panel side view；

Fig. 5 is the structural schematic diagram of the utility model the second driving mechanism and control panel；

Fig. 6 is the front view of the utility model rotary valve；

Fig. 7 is the vertical view of the utility model rotary valve；

Fig. 8 is the upward view of Fig. 7；

Fig. 9 is the structural schematic diagram of the utility model rotary valve.

In attached drawing, parts list represented by the reference numerals are as follows：

1, main vertical frame；

2, the first driving mechanism, the 201, first driving motor, 202, lead screw, 203, synchronous belt, 204, motor rack, 205, One gear, 206, second gear, 207, bogie, 208, guide rod；

3, the second driving mechanism, 301, encoder, the 302, second driving motor；

4, rotary valve, 401, valve body, 402, spool, 403, injection canal, 404, first passage, 405, second channel, 406, cavity, 407, third through-hole, 408, fourth hole；

5, syringe, 6, push rod, 7, control panel.

Specific implementation mode

The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining this practicality It is novel, it is not intended to limit the scope of the utility model.

As shown in Figures 1 to 9, a kind of automatic injection pump, including arrange vertically main vertical frame 1, the first driving mechanism 2, Two driving mechanisms 3, rotary valve 4, syringe 5 and push rod 6, first driving mechanism 2 are placed in the side of the main vertical frame 1, institute State push rod 6 and be placed in side of the main vertical frame 1 far from first driving mechanism 2, the output end of first driving mechanism 2 with The push rod 6 connects, and the output end of first driving mechanism 2 drives the push rod 6 along 1 vertical shift of main vertical frame；

Second driving mechanism 3 is placed in the upper end of first driving mechanism 2, and the rotary valve 4 is placed in the push rod 6 Top, the output end of second driving mechanism 3 connect with the rotary valve 4, and the rotary valve 4 is driven to rotate；

The syringe 5 is placed in the lower end of the rotary valve 4, and is connect with the rotary valve 4；The syringe 5 is placed in The lower end of the rotary valve 4, the dispensing end of the syringe 5 are threadedly coupled with the rotary valve 4；The piston of the syringe 5 End is threadedly coupled with the push rod 6, and 6 vertical shift of the push rod drives the piston of the syringe 5 to move, and syringe 5 passes through Rotary valve 4 carries out imbibition and drain.

First passage 404 is connected to the port of sucking injection by hose, the end of second channel 405 and exhaustjet liquid Mouth is connected to by hose；The output end of second driving mechanism 3 drives the rotary valve 4 to rotate so that rotary valve 4 is logical by first Road 404 sucks injection and is transmitted at syringe 5, and the output end of the first driving mechanism 2 drives the push rod 6 perpendicular along main vertical frame 1 It directly moves down, push rod 6 drives the piston end of syringe 5 to move down, and syringe 5 carries out sucking injection by rotary valve 4；

The output end of first driving mechanism 2 inverts, and drives the push rod 6 to be moved straight up along main vertical frame 1,6 band of push rod The piston end of dynamic syringe 5 moves up, and syringe 5 carries out exhaustjet liquid by rotary valve 4；Second driving mechanism 3 it is defeated Outlet drives the rotary valve 4 to rotate so that the injection in syringe 5 is transmitted to the end of exhaustjet liquid by rotary valve 4 At mouthful.

First driving mechanism 2 realizes 6 constant velocity linear's displacement of push rod, stablizes movement, realizes that the precision of injection at the uniform velocity samples Injection；Using being threadedly coupled, replaceable not co-content syringe 5 realizes that different volume liquids divide sample at syringe 5 both ends；Using rotation Rotary valve 4 is, it can be achieved that cleaning solution and point turning liquid and passing through different conduits；First driving mechanism 2 and the longitudinal row of the second driving mechanism 3 Row so that the present apparatus has the features such as small, light-weight, has extensive market prospects.

In above-described embodiment, first driving mechanism 2 includes the first driving motor 201, lead screw 202 and synchronous belt 203, First driving motor 201 is fixedly connected by motor rack 204 with the main vertical frame 1；First driving motor 201 it is defeated Outlet straight up, and is set with first gear 205, and the lead screw 202 is vertically placed in the main vertical frame 1, the lead screw 202 Upper and lower part with the main vertical frame 1 be rotatablely connected；Second gear 206 is set on the top of the lead screw 202, it is described Synchronous belt 203 is sleeved in the first gear 205 and second gear 206；Being set on the lead screw 202 can be perpendicular along lead screw 202 The one end of the dynamic bogie 207 of translation, the push rod 6 passes through the main vertical frame 1 to connect by fast pulley and the bogie 207 It connects；

The output shaft of first driving motor 201 drives the first gear 205 to rotate, and the first gear 205 is logical Crossing synchronous belt 203 drives the second gear 206 to rotate, and the second gear 206 drives lead screw 202 to rotate, the lead screw 202 Drive the bogie 207 along 202 vertical shift of the lead screw, the bogie 207 drives 6 edge of the push rod by fast pulley 1 vertical shift of main vertical frame.

First driving motor 201, as driving original paper, passes through first gear 205, synchronous belt 203, the using stepper motor Two gears 206 and 202 constant large torque of lead screw driving bogie 207 realize constant velocity linear's displacement, drive push rod 6 to stablize vertically and move It is dynamic, realize accurate at the uniform velocity sucking and the exhaustjet liquid of liquid.

In above-described embodiment, the guide rod 208 that setting is arranged vertically in the main vertical frame 1, the guide rod 208 is in the silk The side of bar 202；The end sleeve that the push rod 6 is connect with bogie 207 is on the guide rod 208, and push rod 6 is along the guide rod 208 vertical shifts.

There are two the settings of guide rod 208, and two guide rods 208 are respectively at the both sides of the lead screw 202；Two 208 energy of guide rod It realizes and the precision of push rod 6 is oriented to, realize accurate at the uniform velocity sucking and the exhaustjet liquid of liquid.

In above-described embodiment, catch is provided on the bogie 207, the catch passes through screw and the bogie 207 are fixedly connected；The side of the main vertical frame 1 is fixedly connected with control panel 7, and optoelectronic switch, institute are equipped on the control panel 7 The sending end for stating the first driving motor 201 is connect by the optoelectronic switch with power supply；The bogie 207 is moved along lead screw 202 When moving to close to the top of the lead screw 202, the catch is contacted with the optoelectronic switch, and the optoelectronic switch is powered off.

It is provided with time relay timing driving optoelectronic switch on the control panel 7 to be connected, first can be automatically controlled Driving motor 201 starts and stops, and promotes accuracy and percent of automatization, manual operation is avoided to cause to slip up.

In above-described embodiment, second driving mechanism 3 includes encoder 301 and the second driving motor 302, the coding The signal output end of device 301 and the signal input part of second driving motor 302 pass through connection, the second driving electricity Machine 302 is fixedly connected with the main vertical frame 1；The output shaft of second driving motor 302 passes through the main vertical frame 1 and the rotation Rotary valve 4 connects, and the rotary valve 4 is driven to be operated.

Encoder 301 can be precisely controlled the output end rotational angle of the second driving motor 302, promote accuracy and automation Rate avoids manual operation from causing to slip up.

In above-described embodiment, the rotary valve 4 includes valve body 401 and spool 402, and the valve body 401 is cylindrical-shaped structure, And it is fixedly connected with the main vertical frame 1；Injection canal 403,404 and of first passage are radially provided in the valve body 401 Second channel 405 is provided with cavity 406, the injection canal 403, first passage 404 and second channel in the valve body 401 405 one end is connected to the cavity 406, the injection canal 403, first passage 404 and second channel 405 the other end It is connected to the periphery of valve body 401；The injection canal 403 is in the port on 401 periphery of valve body and the syringe 5 Dispensing end be threadedly coupled；

The spool 402 is placed in the cavity 406, and with the output axis connection of second driving motor 302, second The output shaft of driving motor 302 drives the spool 402 along 401 axial-rotation of the valve body；The spool 402 is close to the note The cylindrical structure in end in channel 403, first passage 404 and second channel 405 is penetrated, and is radially provided in the end One end of third through-hole 407 and fourth hole 408, the third through-hole 407 and fourth hole 408 intersects at the axis of the end The other end of the heart, the third through-hole 407 and fourth hole 408 is connected to the periphery of the end.

The output shaft of second driving motor 302 drives the spool 402 along 401 axial-rotation of the valve body；When syringe 5 When carrying out sucking injection by rotary valve 4, spool 402 rotates so that fourth hole 408 is connected to injection canal 403, third Through-hole 407 is connected to first passage 404 so that syringe 5 passes through injection canal 403, fourth hole 408,407 and of third through-hole First passage 404 sucks injection；Using rotary valve 4 can be promoted injection and exhaustjet liquid accuracy, high degree of automation, Reduce human error.

In above-described embodiment, the angle between the injection canal 403 and first passage 404 is 150 degree, and the injection is logical Angle between road 403 and second channel 405 is 150 degree, and the angle between the first passage 404 and second channel 405 is 60 degree.

In above-described embodiment, the angle between the third through-hole 407 and fourth hole 408 is 150 degree.Third through-hole Angle between 407 and fourth hole 408 can be such that injection canal 403 is precisely connected to first passage 404, or make injection canal 403 are precisely connected to second channel 405, promote control convenience.

Present apparatus operation principle：The first passage 404 of valve body 401 is connected to the port of sucking injection by hose, the Two channels 405 are connected to the port of exhaustjet liquid by hose；

The output shaft of second driving motor 302 of the second driving mechanism 3 drives the spool 402 along 401 axis of the valve body To rotation, encoder 301 controls the output end rotational angle of the second driving motor 302；When syringe 5 is carried out by rotary valve 4 When sucking injection, after the rotation to setting position of spool 402, the second driving motor 302 shuts down so that fourth hole 408 It is connected to injection canal 403, third through-hole 407 is connected to first passage 404；

The output shaft of first driving motor 201 of the first driving mechanism 2 drives the first gear 205 to rotate, and described the One gear 205 drives the second gear 206 to rotate by synchronous belt 203, and the second gear 206 drives lead screw 202 to rotate, The lead screw 202 drives the bogie 207 to be moved straight down along the lead screw 202, and the bogie 207 passes through fast pulley The push rod 6 is driven to be moved straight down along main vertical frame 1, push rod 6 drives syringe 5 to pass through injection canal 403, fourth hole 408, third through-hole 407 and first passage 404 suck injection；

After the injection of the sucking setting of syringe 5, the output shaft of the second driving motor 302 of the second driving mechanism 3 drives The spool 402 reversely rotates, and encoder 301 controls the output end rotational angle of the second driving motor 302；Spool 402 is reversed Behind rotation to setting position, the second driving motor 302 shuts down so that and third through-hole 407 is connected to injection canal 403, the Four through-holes 408 are connected to second channel 405；

The output shaft of first driving motor 201 inverts, and the output shaft of the first driving motor 201 drives the first gear 205 rotate backward, and the first gear 205 drives the second gear 206 to rotate backward by synchronous belt 203, and described second Gear 206 drive lead screw 202 rotate backward, the lead screw 202 drive the bogie 207 along the lead screw 202 straight up Mobile, the bogie 207 drives the push rod 6 to be moved straight up along main vertical frame 1 by fast pulley, and push rod 6 drives injection Device 5 passes through injection canal 403,405 exhaustjet liquid of third through-hole 407, fourth hole 408 and second channel；

Realize accurate at the uniform velocity sucking and the exhaustjet liquid of liquid.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (4)

1. a kind of automatic injection pump, it is characterised in that：Including arrange vertically main vertical frame (1), the first driving mechanism (2), second Driving mechanism (3), rotary valve (4), syringe (5) and push rod (6), first driving mechanism (2) are placed in the main vertical frame (1) Side, the push rod (6) be placed in the main vertical frame (1) far from first driving mechanism (2) side, it is described first driving The output end of mechanism (2) is connect with the push rod (6), and the output end of first driving mechanism (2) drives push rod (6) edge Main vertical frame (1) vertical shift；

Second driving mechanism (3) is placed in the upper end of first driving mechanism (2), and the rotary valve (4) is placed in described push away The output end of the top of bar (6), second driving mechanism (3) is connect with the rotary valve (4), drives the rotary valve (4) Rotation；

The syringe (5) is placed in the lower end of the rotary valve (4), and is connect with the rotary valve (4)；The syringe (5) It is placed in the lower end of the rotary valve (4), the dispensing end of the syringe (5) is threadedly coupled with the rotary valve (4)；The injection The piston end of device (5) is threadedly coupled with the push rod (6), and push rod (6) vertical shift drives the piston of the syringe (5) Mobile, syringe (5) carries out imbibition and drain by rotary valve (4)；

Second driving mechanism (3) includes encoder (301) and the second driving motor (302), the letter of the encoder (301) Number output end and the signal input part of second driving motor (302) pass through connection, second driving motor (302) It is fixedly connected with the main vertical frame (1)；The output shaft of second driving motor (302) pass through the main vertical frame (1) with it is described Rotary valve (4) connects, and the rotary valve (4) is driven to be operated.

2. a kind of automatic injection pump according to claim 1, it is characterised in that：The rotary valve (4) include valve body (401) and Spool (402), the valve body (401) is cylindrical-shaped structure, and is fixedly connected with the main vertical frame (1)；In the valve body (401) It is radially provided with injection canal (403), first passage (404) and second channel (405), is arranged in the valve body (401) Have a cavity (406), one end of the injection canal (403), first passage (404) and second channel (405) with the cavity (406) it is connected to, the other end of the injection canal (403), first passage (404) and second channel (405) is connected to valve body (401) periphery；The injection canal (403) is in the note of the port and the syringe (5) on valve body (401) periphery End is penetrated to be threadedly coupled；

The spool (402) is placed in the cavity (406), and with the output axis connection of second driving motor (302), the The output shaft of two driving motors (302) drives the spool (402) along the valve body (401) axial-rotation；The spool (402) The cylindrical structure in end of the close injection canal (403), first passage (404) and second channel (405), and the end Inside radially it is provided with third through-hole (407) and fourth hole (408), the third through-hole (407) and fourth hole (408) One end intersect at the axle center of the end, the other end of the third through-hole (407) and fourth hole (408) is connected to the end The periphery in portion.

3. a kind of automatic injection pump according to claim 2, it is characterised in that：The injection canal (403) and first passage (404) angle between is 150 degree, and the angle between the injection canal (403) and second channel (405) is 150 degree, described Angle between first passage (404) and second channel (405) is 60 degree.

4. a kind of automatic injection pump according to claim 3, it is characterised in that：The third through-hole (407) and fourth hole (408) angle between is 150 degree.