CN112545889B - Western medicine working device that dispenses - Google Patents

Western medicine working device that dispenses Download PDF

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Publication number
CN112545889B
CN112545889B CN202011412121.9A CN202011412121A CN112545889B CN 112545889 B CN112545889 B CN 112545889B CN 202011412121 A CN202011412121 A CN 202011412121A CN 112545889 B CN112545889 B CN 112545889B
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medicine
rod
threaded rod
gear
sleeve
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CN202011412121.9A
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CN112545889A (en
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李伟栋
孙伟
王兰兰
付茂文
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14Details; Accessories therefor
    • A61J1/20Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14Details; Accessories therefor
    • A61J1/20Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2006Piercing means
    • A61J1/2013Piercing means having two piercing ends
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14Details; Accessories therefor
    • A61J1/20Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/202Separating means
    • A61J1/2041Separating means having removable plugs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14Details; Accessories therefor
    • A61J1/20Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2048Connecting means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J1/00Containers specially adapted for medical or pharmaceutical purposes
    • A61J1/14Details; Accessories therefor
    • A61J1/20Arrangements for transferring or mixing fluids, e.g. from vial to syringe
    • A61J1/2003Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
    • A61J1/2048Connecting means
    • A61J1/2055Connecting means having gripping means

Abstract

The invention discloses a western medicine dispensing working device which comprises a base, wherein a first threaded rod is arranged at the top end of the base. According to the invention, the motor drives the rotating rod to rotate clockwise, the rotating rod drives the second sleeve to rotate clockwise, so that the third threaded rod drives the push rod to move rightwards, at the moment, the medicine taking device conveys liquid medicine in the medicine bag to the cavity through the medicine taking pipe, and simultaneously the liquid medicine in the cavity is conveyed to the first joint and the second joint through the discharge pipe, and when the rotating rod rotates, the second gear drives the first gear to rotate, so that the second threaded rod drives the first threaded rod to move up and down in the first sleeve, so that the discharge pipe moves up and down along with the left and right movement of the push rod when the liquid medicine is extracted by the push rod, the discharge pipe is prevented from being fixed in height, the liquid medicine dripped into the medicine bag is prevented from splashing, the participation degree of medical staff is reduced to the maximum degree, the medicine dispensing efficiency is improved, and the pollution of the liquid medicine or instruments is reduced.

Description

Western medicine working device that dispenses
Technical Field
The invention relates to the field of dispensing equipment, in particular to a western medicine dispensing working device.
Background
The infusion solution or large-volume injection solution is large-dose injection solution which is infused into a human body by intravenous drip, and the dose is more than 100ml at one time. It is a branch of injection, usually packaged in glass or plastic infusion bottles or bags, and contains no bacteriostatic agent. When in use, the dropping speed is adjusted by the infusion apparatus, the medicine is continuously and stably infused into the body, and the used liquid medicine is required to be prepared into a mixed solution according to a certain proportion before infusion.
The mode of dispensing commonly used at present utilizes the cylinder to pour into the medicine bottle after taking out the liquid medicine of dispensing, if the dose is too big, then the working process is very loaded down with trivial details to the piston rod of cylinder is touched to the mistake in the operation very easily, then brings the bacterium inside the cylinder through the piston rod, and long-time operation is tired easily moreover, and work efficiency is also not high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a western medicine dispensing working device which has the advantage of improving the dispensing efficiency of medical personnel and solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a western medicine dispensing working device comprises a base, wherein a first threaded rod is arranged at the top end of the base, a first sleeve is arranged on the outer wall of the first threaded rod, a second threaded rod is connected to the surface of the first threaded rod in a threaded manner, a first gear is arranged at one end of the second threaded rod, a support is arranged at the top end of the first sleeve, a box body is arranged at the top end of the support, a cavity is arranged in the box body, a push rod is sleeved in the cavity, a discharge pipe is communicated with one side of the cavity, a second sleeve is horizontally arranged at the bottom end of the box body, a third threaded rod is connected to the inner cavity of the second sleeve in a threaded manner, one end of the third threaded rod is connected with one end of the push rod through a bearing, a rotating rod is arranged at the other end of the second sleeve, a motor fixed on one side of the box body is arranged at the other end of the rotating rod, a second gear capable of horizontally moving is arranged on the surface of the rotating rod, and No. two gears and a gear are connected for the meshing, one side of cavity is run through and is had the medicine pipe and extend to the outside of box, the other end of medicine pipe is provided with the device of getting it filled.
Preferably, the surface of discharging pipe is provided with the check valve, and the other end of discharging pipe is provided with No. one and connects, No. one connects one end threaded connection and has No. two joints, and the other end intercommunication of No. two joints has the pipe.
Preferably, the bottom end of the box body is provided with a lantern ring, and the lantern ring and the second sleeve form a movable connection.
Preferably, the outer wall of dwang has seted up the spout, one side of No. two gears is provided with the extension board, and the surface of extension board has the gag lever post through fluting swing joint, the spacing groove has been seted up to the inside bottom of spout.
Preferably, the sliding groove and the limiting rod form a sliding connection, and the limiting rod and the limiting groove are in threaded connection.
Preferably, the inside of the medicine taking device comprises a tee joint in threaded connection with one end of the medicine taking pipe, and a plurality of medicine taking devices are arranged on the surface of the tee joint.
Preferably, fixed establishment is installed on the top of base, and fixed establishment's inside is including corresponding riser and No. two risers that set up on the base top respectively, the surface of riser is provided with mobilizable threaded rod No. four, and the other end of threaded rod No. four is provided with splint.
Preferably, the medicine taking device is located right above the fixing mechanism, a glass window is arranged on the outer wall of the box body, and scale marks are arranged on the surface of the glass window.
A use method of a western medicine dispensing working device comprises the following use steps:
s1, firstly, a medicine storage bag is placed between a first vertical plate and a second vertical plate, a clamp plate is used for fixing the medicine storage bag by rotating a fourth threaded rod, then a medicine taking device is inserted into the medicine bag needing medicine taking,
s2, then starting the motor, enabling the motor to drive the rotating rod to rotate clockwise, enabling the rotating rod to drive the second sleeve to rotate clockwise, enabling the third threaded rod to drive the push rod to move rightwards, enabling the medicine taking device to convey medicine liquid in the medicine bag to the cavity through the medicine taking pipe, meanwhile, conveying the medicine liquid in the cavity to a first joint and a second joint through the discharge pipe, enabling the second gear to drive the first gear to rotate while the rotating rod rotates, enabling the second threaded rod to drive the first threaded rod to move up and down in the first sleeve, enabling the push rod to extract the medicine liquid, enabling the discharge pipe to move up and down along with the left and right movement of the push rod, avoiding the height of the discharge pipe being fixed, and leading the medicine liquid dropping into the medicine bag to splash,
s3, if need set up the height of discharging pipe into fixed, through rotating the gag lever post for gag lever post and spacing groove separation, accessible spout removes No. two gears this moment, makes No. two gears and a gear separation, can not make No. two gears drive a gear revolve when the motor rotates this moment.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the motor drives the rotating rod to rotate clockwise, the rotating rod drives the second sleeve to rotate clockwise, so that the third threaded rod drives the push rod to move rightwards, at the moment, the medicine taking device conveys liquid medicine in the medicine bag to the cavity through the medicine taking pipe, and simultaneously the liquid medicine in the cavity is conveyed to the first joint and the second joint through the discharge pipe, and when the rotating rod rotates, the second gear drives the first gear to rotate, so that the second threaded rod drives the first threaded rod to move up and down in the first sleeve, so that the discharge pipe moves up and down along with the left and right movement of the push rod when the liquid medicine is extracted by the push rod, the discharge pipe is prevented from being fixed in height, the liquid medicine dripped into the medicine bag is prevented from splashing, the participation degree of medical staff is reduced to the maximum degree, the medicine dispensing efficiency is improved, and the pollution of the liquid medicine or instruments is reduced.
2. According to the medicine storage bag dispensing device, the limiting rod is separated from the limiting groove by rotating the limiting rod, the second gear can be moved through the sliding groove to be separated from the first gear, and the second gear cannot drive the first gear to rotate when the motor rotates, so that the height of the discharging pipe is fixed, the medicine storage bag dispensing device can dispense different medicine storage bags, different using requirements are met, and the applicability is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a western medicine dispensing device according to the present invention;
FIG. 2 is a schematic view of the left side of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic view of the rotating rod and the second gear in the present invention;
FIG. 5 is a schematic sectional view of the rotating rod and the second gear of the present invention;
FIG. 6 is a schematic view of the surface structure of the case of the present invention.
In the figure: 1. a base; 2. a first threaded rod; 201. a second threaded rod; 3. a first sleeve; 4. a first gear; 5. a support; 6. a box body; 601. a cavity; 602. a collar; 603. a glass window; 7. a push rod; 8. a discharge pipe; 801. a one-way valve; 802. a first connector; 803. a second joint; 804. a conduit; 9. a second sleeve; 10. a third threaded rod; 11. rotating the rod; 1101. a chute; 1102. a limiting groove; 12. a motor; 13. a second gear; 1301. a support plate; 1302. a limiting rod; 14. a medicine taking tube; 15. a medicine taking device; 1501. a three-way joint; 1502. a medicine taking device; 16. a fixing mechanism; 1601. a first vertical plate; 1602. a second vertical plate; 1603. a fourth threaded rod; 1604. and (4) clamping the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a western medicine dispensing device comprises a base 1, a first threaded rod 2 is arranged at the top end of the base 1, a first sleeve 3 is arranged on the outer wall of the first threaded rod 2, a second threaded rod 201 is connected to the surface of the first threaded rod 2 in a threaded manner, a first gear 4 is arranged at one end of the second threaded rod 201, a support 5 is arranged at the top end of the first sleeve 3, a box body 6 is arranged at the top end of the support 5, a cavity 601 is arranged inside the box body 6, a push rod 7 is sleeved inside the cavity 601, a discharge pipe 8 is communicated with one side of the cavity 601, a second sleeve 9 is horizontally arranged at the bottom end of the box body 6, a third threaded rod 10 is connected to the inner cavity of the second sleeve 9 in a threaded manner, one end of the third threaded rod 10 is connected with one end of the push rod 7 through a bearing, a rotating rod 11 is arranged at the other end of the second sleeve 9, and a motor 12 fixed at one side of the box body 6 is arranged at the other end of the rotating rod 11, but the surface of dwang 11 is provided with horizontal migration's No. two gears 13, and No. two gears 13 and No. one gear 4 be connected for the meshing, and one side of cavity 601 is run through and is got medicine pipe 14 and extend to the outside of box 6, and the other end of getting medicine pipe 14 is provided with device 15 of getting it filled.
Specifically, discharge pipe 8's surface is provided with check valve 801, and discharge pipe 8's the other end is provided with No. one and connects 802, No. one end threaded connection of No. one connects 802 has No. two to connect 803, and the other end intercommunication of No. two connects 803 has pipe 804, and check valve 801 can avoid the liquid medicine backward flow in discharge pipe 8, and No. one connects 802 and No. two connects 803 can dismantle or change the pipeline of other models.
Specifically, the bottom end of the box body 6 is provided with a lantern ring 602, and the lantern ring 602 and the second sleeve 9 form a movable connection, so that the second sleeve 9 can rotate conveniently.
Specifically, spout 1101 has been seted up to the outer wall of dwang 11, one side of No. two gears 13 is provided with extension board 1301, and there is gag lever post 1302 on the surface of extension board 1301 through fluting swing joint, spacing groove 1102 has been seted up to the inside bottom of spout 1101, through rotating gag lever post 1302, make gag lever post 1302 and spacing groove 1102 separation, accessible spout 1101 removes No. two gears 13 this moment, make No. two gears 13 and No. one gear 4 separation, motor 12 can not make No. two gears 13 drive No. one gear 4 and rotate during the rotation this moment, make discharging pipe 8 highly fixed, thereby make the device can dispense medicine work to different medicine storage bags or medicine storage bottles, satisfy different user demands, improve the suitability.
Specifically, the sliding groove 1101 and the limiting rod 1302 form a sliding connection, the limiting rod 1302 and the limiting groove 1102 are in threaded connection, and the limiting rod 1302 and the limiting groove 1102 are in threaded fixation by rotating the limiting rod 1302, so that the second gear 13 is fixed on the rotating rod 11.
Specifically, the inside of the medicine taking device 15 includes a three-way joint 1501 in threaded connection with one end of the medicine taking tube 14, and the surface of the three-way joint 1501 is provided with a plurality of medicine taking devices 1502, and the medicine taking devices 1502 include but are not limited to steel needles and other instruments.
Specifically, fixed establishment 16 is installed on base 1's top, and fixed establishment 16's inside is including corresponding setting up riser 1601 and No. two risers 1602 on base 1 top respectively, and the surface of riser 1601 is provided with mobilizable No. four threaded rod 1603, and the other end of No. four threaded rod 1603 is provided with splint 1604, through rotating No. four threaded rod 1603 for splint 1604 fixes or the medicine storage bottle.
Specifically, the medicine taking device 15 is located right above the fixing mechanism 16, the glass window 603 is arranged on the outer wall of the box body 6, scale marks are arranged on the surface of the glass window 603, and the glass window 603 and the scale marks facilitate a user to clearly extract the amount of liquid medicine.
The working principle is as follows: firstly, placing an or medicine storage bottle between a first vertical plate 1601 and a second vertical plate 1602, fixing the or medicine storage bottle by a clamp plate 1604 by rotating a fourth threaded rod 1603, and then inserting a medicine taking device 1502 into a medicine bag needing medicine taking; then the motor 12 is started, so that the motor 12 drives the rotating rod 11 to rotate clockwise, the rotating rod 11 drives the second sleeve 9 to rotate clockwise, so that the third threaded rod 10 drives the push rod 7 to move rightwards, at the moment, the medicine taking device 1502 conveys medicine liquid in the medicine bag to the cavity 601 through the medicine taking tube 14, the medicine liquid in the cavity 601 conveys the first joint 802 and the second joint 803 through the discharge tube 8, and when the rotating rod 11 rotates, the second gear 13 drives the first gear 4 to rotate, so that the second threaded rod 201 drives the first threaded rod 2 to move up and down in the first sleeve 3, so that when the push rod 7 extracts the medicine liquid, the discharge tube 8 moves up and down along with the left and right movement of the push rod 7, and the situation that the height of the discharge tube 8 is fixed, so that the medicine liquid dripped into or in a medicine storage bottle splashes is avoided, if the height of the discharge tube 8 needs to be fixed, by rotating the limiting rod 1302, the limiting rod 1302 is separated from the limiting groove 1102, the second gear 13 can be moved through the sliding groove 1101 at the moment, the second gear 13 is separated from the first gear 4, and the second gear 13 cannot drive the first gear 4 to rotate when the motor 12 rotates at the moment.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a western medicine dispensing device, includes base (1), its characterized in that: the top end of the base (1) is provided with a first threaded rod (2), the outer wall of the first threaded rod (2) is provided with a first sleeve (3), the surface of the first threaded rod (2) is in threaded connection with a second threaded rod (201), the second threaded rod (201) drives the first threaded rod (2) to move up and down in the first sleeve (3), one end of the second threaded rod (201) is provided with a first gear (4), the top end of the first sleeve (3) is provided with a support (5), the top end of the support (5) is provided with a box body (6), the interior of the box body (6) is provided with a cavity (601), a push rod (7) is sleeved in the cavity (601), one side of the cavity (601) is communicated with a discharge pipe (8), the bottom end of the box body (6) is horizontally provided with a second sleeve (9), and the inner cavity of the second sleeve (9) is in threaded connection with a third threaded rod (10), one end of the third threaded rod (10) is connected with one end of the push rod (7) through a bearing, the other end of the second sleeve (9) is provided with a rotating rod (11), and the other end of the rotating rod (11) is provided with a motor (12) fixed on one side of the box body (6), the rotating rod (11) can drive the second sleeve (9) to synchronously rotate, the surface of the rotating rod (11) is provided with a second gear (13) which can horizontally move, and the second gear (13) is meshed with the first gear (4), one side of the cavity (601) is penetrated with a medicine taking pipe (14) and extends to the outside of the box body (6), the other end of the medicine taking tube (14) is provided with a medicine taking device (15), the third threaded rod (10) can drive the push rod (7) to move rightwards in the cavity (601), so that the medicine taking device (1502) can convey the liquid medicine in the medicine bag to the cavity (601) through the medicine taking tube (14).
2. The western medicine dispensing working device according to claim 1, wherein: discharging pipe (8)'s surface is provided with check valve (801), and discharging pipe (8) the other end is provided with a joint (802), a threaded connection of one end of a joint (802) has No. two to connect (803), and the other end intercommunication of No. two joint (803) has pipe (804).
3. The western medicine dispensing working device according to claim 1, wherein: the bottom of box (6) is provided with lantern ring (602), and lantern ring (602) and No. two sleeve pipes (9) constitute swing joint.
4. The western medicine dispensing working device according to claim 1, wherein: spout (1101) have been seted up to the outer wall of dwang (11), one side of No. two gear (13) is provided with extension board (1301), and the surface of extension board (1301) has gag lever post (1302) through fluting swing joint, spacing groove (1102) have been seted up to the inside bottom of spout (1101).
5. A western medicine dispensing working device according to claim 4, wherein: the sliding groove (1101) and the limiting rod (1302) form sliding connection, and the limiting rod (1302) and the limiting groove (1102) are in threaded connection.
6. The western medicine dispensing working device according to claim 1, wherein: the inside of the medicine taking device (15) comprises a three-way joint (1501) in threaded connection with one end of the medicine taking pipe (14), and a plurality of medicine taking devices (1502) are arranged on the surface of the three-way joint (1501).
7. The western medicine dispensing working device according to claim 1, wherein: fixed establishment (16) are installed on the top of base (1), and the inside of fixed establishment (16) is including corresponding riser (1601) and No. two riser (1602) that set up on base (1) top respectively, the surface of riser (1601) is provided with mobilizable No. four threaded rod (1603), and the other end of No. four threaded rod (1603) is provided with splint (1604).
8. The western medicine dispensing working device according to claim 1, wherein: the medicine taking device (15) is located right above the fixing mechanism (16), a glass window (603) is arranged on the outer wall of the box body (6), and scale marks are arranged on the surface of the glass window (603).
9. A use method of a western medicine dispensing working device comprises the following use steps:
s1, firstly, placing the medicine storage bag or the medicine storage bottle between the first vertical plate and the second vertical plate, fixing the medicine storage bag or the medicine storage bottle by the clamp plate by rotating the fourth threaded rod, then inserting the medicine taking device into the medicine bag to be taken,
s2, then starting the motor, making the motor drive the rotating rod to rotate clockwise, the rotating rod drives the second sleeve to rotate clockwise, thereby making the third threaded rod drive the push rod to move rightwards, at the moment, the medicine taking device conveys the medicine liquid in the medicine bag to the cavity through the medicine taking pipe, meanwhile, the medicine liquid in the cavity conveys the first joint and the second joint through the discharge pipe, and when the rotating rod rotates, the second gear drives the first gear to rotate, so that the second threaded rod and the first threaded rod are driven to move up and down in the first sleeve, thereby when the push rod extracts the medicine liquid, the discharge pipe moves up and down along with the left and right movement of the push rod, avoiding the height of the discharge pipe being fixed, leading to the medicine liquid dropping to the medicine storage bag or the medicine storage bottle to splash,
s3, if the height of the discharge pipe is required to be fixed, the limiting rod is rotated to separate the limiting rod from the limiting groove, the second gear can be moved through the sliding groove, the second gear is separated from the first gear, and the motor can not drive the first gear to rotate when rotating.
CN202011412121.9A 2020-12-03 2020-12-03 Western medicine working device that dispenses Active CN112545889B (en)

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