CN219878673U - Rotary dosing device and liquid distribution system comprising same - Google Patents

Abstract

The utility model belongs to the technical field of medicine dispensing, and particularly provides a rotary medicine adding device and a liquid dispensing system comprising the rotary medicine adding device. Aims at solving the problems of large volume and low liquid preparation efficiency of the existing liquid preparation device. The rotary dosing device comprises a mounting seat, a rotary driving member and a dosing mechanism, wherein the rotary driving member and the dosing mechanism are mounted on the mounting seat, the rotary driving member is connected with the dosing mechanism and can drive the dosing mechanism to rotate around a vertical shaft relative to the mounting seat so as to enable the dosing mechanism to move to a liquid pumping position and a liquid injection position, and the dosing mechanism is arranged to drive the injector to pump and inject liquid so as to pump liquid medicine in an ampoule bottle into the injector at the liquid pumping position and inject the liquid medicine in the injector into an infusion bag at the liquid injection position. The rotary dosing device has the advantages of simple integral structure, small volume and convenient assembly and use.

Description

Rotary dosing device and liquid distribution system comprising same

Technical Field

The utility model belongs to the technical field of medicine dispensing, and particularly provides a rotary medicine adding device and a liquid dispensing system comprising the rotary medicine adding device.

Background

At present, the intravenous transfusion dispensing modes of most hospitals in China are as follows: the doctor issues orders, and the nurse takes charge of preparing and completing the transfusion operation to the patient. In order to improve the safety of dispensing, reduce the requirement of medical staff on professional skills, expand the working capacity of the medical staff, ensure that the original time-consuming heavy and dangerous drug configuration work can be safely and rapidly completed, and realize automatic liquid dispensing by using a liquid dispensing device in the market, thereby saving labor.

However, the existing liquid dispensing device has large volume, and when a medicine is added, a new ampoule bottle and a transfusion belt are needed to be manually replaced for use, so that the overall liquid dispensing efficiency is low.

Accordingly, there is a need in the art for a new solution to the above-mentioned technical problems.

Disclosure of Invention

The utility model aims to solve the technical problems, namely the problems of large volume and low liquid distribution efficiency of the traditional liquid distribution device.

In a first aspect, the utility model provides a rotary dosing device comprising a mounting base, a rotary driving member and a dosing mechanism, wherein the rotary driving member and the dosing mechanism are mounted on the mounting base, the rotary driving member is connected with the dosing mechanism and can drive the dosing mechanism to rotate around a vertical shaft relative to the mounting base so as to enable the dosing mechanism to move to a liquid pumping position and a liquid injection position, and the dosing mechanism is arranged to drive a syringe to pump and inject liquid so as to pump liquid medicine in an ampoule bottle into the syringe at the liquid pumping position and inject the liquid medicine in the syringe into an infusion bag at the liquid injection position.

In the above-mentioned preferred technical scheme of gyration dosing device, the quantity of drawing liquid position is two, two drawing liquid position department is provided with first mounting and second mounting respectively, first mounting with the ampoule can be fixed to the second mounting, the quantity of annotating liquid position is two, and two annotate liquid position department is provided with first joint spare and second joint spare respectively, first joint spare with the infusion bag can be fixed to the second joint spare, first joint spare the second joint spare first mounting with the second mounting all is located dosing mechanism's below.

In the above-mentioned preferred technical scheme of gyration charge device, first joint spare the second joint spare first mounting with the second mounting distributes along circumference, first joint spare with the second joint spare all is located first mounting with between the second mounting, first joint spare is close to first mounting sets up, the second joint spare is close to the second mounting sets up.

In the above preferred technical solution of the rotary dosing device, the angle between the first fixing member and the second fixing member is 180 °, and the angle between the first clamping member and the first fixing member is equal to the angle between the second clamping member and the second fixing member.

In the preferred technical scheme of the rotary dosing device, the dosing mechanism comprises a fixed seat, a mounting assembly and a driving assembly, wherein the driving assembly is mounted on the fixed seat, the mounting assembly is connected with the syringe, the driving assembly is connected with the mounting assembly and can drive the mounting assembly to move along the vertical direction so as to drive the syringe to pump and inject liquid, the fixed seat is mounted on the mounting seat through the vertical shaft in a pivoted mode, and the rotary driving member is connected with the fixed seat and can drive the fixed seat to rotate around the vertical shaft relative to the mounting seat.

In the preferred technical scheme of the rotary dosing device, the driving assembly comprises a screw rod, a first closed-loop penetrating screw rod motor and a second closed-loop penetrating screw rod motor, wherein the first closed-loop penetrating screw rod motor and the second closed-loop penetrating screw rod motor are sleeved on the screw rod and matched with the screw rod, the screw rod is vertically installed on the installation seat and can rotate relative to the installation seat, the first closed-loop penetrating screw rod motor is located above the second closed-loop penetrating screw rod motor, the installation assembly comprises a first installation piece and a second installation piece, one end of the first installation piece is connected with the first closed-loop penetrating screw rod motor, the other end of the first installation piece is connected with a piston handle of the injector, one end of the second installation piece is connected with the second closed-loop penetrating screw rod motor, and the other end of the second installation piece is connected with an injection cylinder of the injector.

In the above-mentioned preferred technical scheme of gyration charge device, the other end of first installed part is equipped with first draw-in groove, the piston handle card is established in the first draw-in groove, the thickness of piston handle with the thickness of first draw-in groove is the same, the other end of second installed part is equipped with first spacing groove and the second spacing groove of upper and lower distribution, the injection tube runs through first spacing groove with the second spacing groove, be equipped with the second draw-in groove in the first spacing groove, keep away from the injection head the tip card of injection tube is established in the second draw-in groove.

In the preferable technical scheme of the rotary dosing device, the dosing mechanism further comprises a guide assembly, the guide assembly is located between the fixing seat and the mounting assembly, and the guide assembly is arranged to guide when the mounting assembly moves.

In the above-mentioned preferred technical scheme of gyration charge device, the direction subassembly includes linear slide rail, first direction slider and second direction slider, linear slide rail installs on the fixing base and vertical setting, first direction slider with the second direction slider with linear slide rail matches and can follow linear slide rail removes, first direction slider with first installed part or first closed loop runs through the lead screw motor and is connected, the second direction slider with the second installed part or second closed loop runs through the lead screw motor and is connected.

In a second aspect, the utility model provides a liquid dispensing system comprising the rotary dosing device described above.

Under the condition that the technical scheme is adopted, the rotary dosing device comprises the mounting seat, the rotary driving piece and the dosing mechanism, and the rotary driving piece can drive the dosing mechanism to horizontally and circumferentially rotate, so that the dosing mechanism can be moved to a liquid pumping position and a liquid injection position, liquid medicine in an ampoule bottle can be pumped into the injector at the liquid pumping position, and the liquid medicine in the injector can be injected into the infusion bag at the liquid injection position, and automatic liquid preparation work is completed. The rotary dosing device has the advantages of simple integral structure, convenient assembly and use, small radius of rotation and small volume, and the dosing mechanism is driven by the rotary driving piece to rotate and revolve along the fixed path to realize liquid pumping and liquid injection. In addition, when the rotary driving member drives the dosing mechanism to rotate, a plurality of liquid pumping positions and a plurality of liquid injection positions can be simultaneously arranged in a rotary area of the rotary driving member, and one liquid pumping position is matched with one liquid injection position, so that after one liquid pumping and injection dispensing operation is finished, the dosing mechanism is moved to the next matched liquid pumping position and liquid injection position to carry out the next liquid pumping and injection dispensing operation, and a worker can replace an ampoule bottle at the liquid pumping position and a liquid injection position infusion bag at the liquid injection position which have finished the operation in the neutral gear time, so that the machine is not stopped, and the working efficiency is improved; in addition, the rotary area can be provided with a plurality of liquid pumping positions to be matched with one liquid injection position for use, so that the situation that liquid is matched with various liquid medicines is realized, the use is more convenient, and the working efficiency is improved.

Further, the two liquid pumping positions are arranged, and the two liquid injecting positions are arranged, wherein one liquid pumping position is matched with one liquid injecting position for use, so that two liquid distributing stations are formed, the rotary dosing device can continuously execute the next liquid distributing operation after one liquid distributing operation is completed, the machine is not stopped, and the working efficiency is improved.

Still further, first joint spare, second joint spare, first mounting and second mounting distribute along circumference, first joint spare and second joint spare all are located between first mounting and the second mounting, first joint spare is close to first mounting setting, the second joint spare is close to the setting of second mounting, such setting mode makes two drawing liquid positions and two annotate liquid position circumference distribution to make matched with drawing liquid position and annotate liquid position adjacent setting, the gyration route of convenient application and control dosing mechanism, in addition, can also save space, improve the compactedness of structure.

Still further, make the angle between first mounting and the second mounting be 180, the angle between first joint spare and the first mounting equals the angle between second joint spare and the second mounting, and this kind of setting mode makes two drawing liquid position circumference angles be 180, and the drawing liquid position in the drawing liquid notes working interval of a complement is the same to the circumference angle of annotating the liquid position, and convenient control dosing mechanism uses and is convenient for fix a position.

Still further, set up dosing mechanism into fixing base, installation component and drive assembly, its simple structure, convenient preparation and equipment use.

Still further, the driving assembly is set to be a screw rod, a first closed-loop penetrating screw rod motor and a second closed-loop penetrating screw rod motor, the first closed-loop penetrating screw rod motor and the second closed-loop penetrating screw rod motor are matched with the same screw rod for use, the up-and-down movement position is accurate, the overall movement progress of the injector and the independent movement precision of the piston rod can be effectively ensured, and therefore the linkage precision is ensured; in addition, this setting mode, simple structure, small and convenient equipment use.

Still further, set up first draw-in groove and second draw-in groove and block respectively establish the piston handle of syringe and the injection tube of syringe, simple structure, fixed effectual.

Still further, setting up the direction subassembly can guarantee that the installation component removes along vertical direction when removing, guarantees that the injection tube can not take place rotatory and the phenomenon of position offset when removing along vertical direction.

Still further, set up the direction subassembly into linear slide rail, first direction slider and second direction slider, such setting method, simple structure, convenient equipment is used.

Drawings

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic perspective view of a rotary dosing device of the present utility model;

FIG. 2 is a top view of the rotary dosing device of the present utility model;

FIG. 3 is a schematic illustration of the connection of the rotary drive member to the dosing mechanism of the present utility model showing the mounting block;

fig. 4 is a schematic structural view of the dosing mechanism of the present utility model.

List of reference numerals：

1. A mounting base;

2. a rotary driving member;

3. a dosing mechanism; 31. a fixing seat; 32. a mounting assembly; 321. a first mounting member; 3211. a first clamping groove; 322. a second mounting member; 3221. a first limit groove; 32211. a second clamping groove; 3222. the second limit groove; 33. a drive assembly; 331. a screw rod; 332. a first closed-loop penetrating screw motor; 333. a second closed-loop penetrating screw motor; 34. a guide assembly; 341. a linear slide rail; 342. a first guide slider; 343. a second guide slider;

4. a first fixing member; 5. a second fixing member; 6. a first clamping piece; 7. a second clamping piece;

8. ampoule bottle; 9. an infusion bag; 10. a syringe.

Detailed Description

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "above," "below," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through other members. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Based on the problems of large volume and low liquid distribution efficiency of the existing liquid distribution device pointed out in the background art. According to the rotary dosing device, the rotary driving member and the dosing mechanism are arranged through the mounting seat, so that the rotary driving member drives the dosing mechanism to rotate along the vertical shaft, and the dosing mechanism can move to the liquid pumping position and the liquid injection position through circumferential rotation and rotation, so that liquid medicine in an ampoule bottle can be pumped into the injector and the liquid medicine in the injector can be injected into the infusion bag, and automatic liquid preparation is performed. The rotary dosing device has the advantages that the whole structure is simple, the assembly and the use are convenient, the rotary radius of the dosing mechanism is small, the volume is small, when the rotary driving member drives the dosing mechanism to rotate, a plurality of liquid sucking positions can be arranged in the rotary area of the rotary driving member to be matched with a plurality of liquid injection positions to form a plurality of liquid distribution stations, so that after one liquid distribution unit is completed, the dosing mechanism moves to the next matched liquid sucking position and the liquid injection position to suck liquid and dose again, and a worker can replace an ampoule bottle and a transfusion bag at the liquid injection position at the liquid sucking position which are completed before in the neutral gear, so that the machine is not stopped, and the working efficiency is improved; in addition, a plurality of liquid pumping devices can be arranged in the rotation area to be matched with one liquid injection device for use, so that the situation that liquid is matched with various liquid medicines is realized, the use is more convenient, and the working efficiency is improved.

Specifically, as shown in fig. 1, the rotary dosing device of the present utility model includes a mount 1, a rotary driving member 2, and a dosing mechanism 3. The mounting base 1 is used for mounting and fixing the rotary driving member 2 and the dosing mechanism 3, and its specific structure can be specifically set according to the structures and mounting positions of the rotary driving member 2 and the dosing mechanism 3, preferably, the mounting base 1 includes a supporting base and a mounting frame above the supporting base.

Wherein, rotary driving member 2 and dosing mechanism 3 are installed on mount pad 1, and dosing mechanism 3 passes through vertical axle (not marked in the figure) and is connected with mount pad 1 pivot, rotary driving member 2 is connected with dosing mechanism 3 to can drive dosing mechanism 3 and rotate for mount pad 1 around vertical axle, so that make dosing mechanism 3 remove to drawing liquid position and annotate the liquid position. The dosing mechanism 3 can horizontally and circumferentially rotate under the drive of the rotary driving member 2, so as to circumferentially rotate on the horizontal plane and smoothly move to the liquid pumping position and the liquid injection position.

The dosing mechanism 3 is arranged to be able to drive the syringe 10 for drawing in and injecting liquid medicine in order to draw the liquid medicine in the ampoule 8 into the syringe 10 at the drawing-in position and to inject the liquid medicine in the syringe 10 into the infusion bag 9 at the injection-in position.

The liquid pumping position in the utility model is the placement position of the ampoule bottle 8, when the dosing mechanism 3 is positioned at the position, the injector 10 is positioned right above the ampoule bottle 8, and the dosing mechanism 3 can drive the injector 10 to pump liquid, so that the liquid medicine in the ampoule bottle 8 is pumped into the injector 10. The liquid injection position in the utility model is the placement position of the infusion bag 9, when the medicine adding mechanism 3 is positioned at the position, the injector 10 is positioned right above the infusion bag 9, and the medicine adding mechanism 3 can drive the injector 10 to inject liquid, so that the liquid medicine in the injector 10 is injected into the infusion bag 9.

The rotary dosing device provided by the utility model consists of the mounting seat 1, the rotary driving member 2 and the dosing mechanism 3, and has the advantages of simple integral structure, small volume and convenience in assembly and use.

When the rotary dosing device is used for preparing liquid, the rotary driving member 2 drives the dosing mechanism 3 to rotate, so that the dosing mechanism 3 moves to a liquid pumping position firstly, and at the liquid pumping position, the dosing mechanism 3 drives the injector 10 to pump liquid, and liquid medicine in the ampoule bottle 8 is pumped into the injector 10; then the rotary driving member 2 drives the dosing mechanism 3 to rotate in the direction so as to rotate to a liquid injection position, and at the liquid injection position, the dosing mechanism 3 drives the injector 10 to inject liquid, and the liquid medicine in the injector 10 is injected into the infusion bag 9, so that liquid preparation is realized.

It should be noted that the number of liquid drawing positions and the number of liquid filling positions are not limited in any way, and in practical applications, those skilled in the art can specifically set the number of liquid drawing positions and the number of liquid filling positions according to the actual size of the rotary dosing device and the rotation (rotary) radius thereof. For example, two liquid extraction positions may be set, and two liquid injection positions may be set at the same time, with one liquid extraction position being used in combination with one liquid injection position; or, a plurality of pumping positions can be set, one injection position is set, and the plurality of pumping positions are matched with one injection position for use so as to realize the preparation of various medicaments; etc. The number of the liquid drawing positions and the liquid injecting positions is adjusted and changed without departing from the basic principle of the utility model, and the utility model is limited in the protection scope.

Preferably, as shown in fig. 1 and 2, the number of the liquid pumping positions is two, the two liquid pumping positions are respectively provided with a first fixing piece 4 and a second fixing piece 5, the first fixing piece 4 and the second fixing piece 5 can fix the ampoule 8, the number of the liquid injection positions is two, the two liquid injection positions are respectively provided with a first clamping piece 6 and a second clamping piece 7, the first clamping piece 6 and the second clamping piece 7 can fix the infusion bag 9, and the first clamping piece 6, the second clamping piece 7, the first fixing piece 4 and the second fixing piece 5 are all positioned below the dosing mechanism 3.

The two liquid pumping positions and two liquid injection positions are arranged, wherein one liquid pumping position is matched with one liquid injection position to form two liquid distribution stations, the next liquid distribution work can be immediately executed after one liquid distribution work is completed, the machine is operated without stopping, and the working efficiency is improved. In addition, set up first mounting 4 and second mounting 5 respectively in two liquid extraction positions for fixed ampoule 8 to accomplish the drawing operation with dosing mechanism 3 cooperation, set up first joint spare 6 and second joint spare 7 respectively in liquid injection position department, be used for fixed infusion bag 9, in order to accomplish the liquid injection operation with dosing mechanism 3 cooperation.

It should be noted that, the specific structure and the installation position of the first fixing member 4 and the second fixing member 5 are not limited in the present utility model, so long as the first fixing member 4 and the second fixing member 5 can fix the two ampoule bottles 8 at two liquid pumping positions respectively, and can cooperate with the dosing mechanism 3 to pump liquid, in practical application, a person skilled in the art can set the specific structure and the installation position of the first fixing member 4 and the second fixing member 5 according to actual needs. For example, the first fixing piece 4 and the second fixing piece 5 are provided as fixing plates with fixing grooves, the ampoule bottle 8 is clamped and fixed in the fixing grooves, and the first fixing piece 4 and the second fixing piece 5 are connected with the mounting seat 1; or the first fixing piece 4 and the second fixing piece 5 are fixed plates with fixing grooves, the ampoule bottle 8 is clamped and fixed in the fixing grooves, the first fixing piece 4 and the second fixing piece 5 are respectively arranged on two feeding mechanisms, and the feeding mechanisms are in butt joint with the dosing mechanism 3 to realize feeding; etc. Such adjustments and changes concerning the structure and mounting position of the first fixing member 4 and the second fixing member 5 do not deviate from the basic principle of the present utility model, and should be limited within the scope of the present utility model.

Preferably, as shown in fig. 1, the first fixing member 4 is a first fixing plate mounted on the mounting base 1, and the first fixing plate has a first fixing groove (not shown) thereon, and the first fixing groove is used for fixing the ampoule bottle 8. The structure is simple and the use is convenient.

Preferably, as shown in fig. 1, the second fixing member 5 is a second fixing plate mounted on the mounting base 1, and the second fixing plate has a second fixing groove (not shown) thereon, and the second fixing groove is used for fixing the ampoule bottle 8. The structure is simple and the use is convenient.

It should be noted that, the specific structure and installation position of the first clamping member 6 and the second clamping member 7 are not limited in the present utility model, so long as the first clamping member 6 and the second clamping member 7 can fix the two infusion bags 9 at two infusion positions respectively, and can cooperate with the dosing mechanism 3 to infuse liquid, and in practical application, a person skilled in the art can set the structure and installation position of the first clamping member 6 and the second clamping member 7 according to actual needs. For example, the first clamping piece 6 and the second clamping piece 7 are provided as clamping plates with clamping grooves, the infusion bag 9 is clamped and fixed in the clamping grooves, and the first clamping piece 6 and the second clamping piece 7 are connected with the mounting seat 1; or the first clamping piece 6 and the second clamping piece 7 are arranged as clamping plates with clamping grooves, the infusion bag 9 is clamped and fixed in the clamping grooves, the first clamping piece 6 and the second clamping piece 7 are respectively arranged on two supporting devices, and the two supporting devices are respectively positioned at two liquid injection positions; etc. Such adjustment and modification of the structure and the installation position of the first clamping member 6 and the second clamping member 7 do not deviate from the basic principle of the present utility model, and are all limited in the scope of the present utility model.

Preferably, as shown in fig. 1 and 2, the first clamping member 6, the second clamping member 7, the first fixing member 4 and the second fixing member 5 are circumferentially distributed, the first clamping member 6 and the second clamping member 7 are both located between the first fixing member 4 and the second fixing member 5, the first clamping member 6 is disposed close to the first fixing member 4, and the second clamping member 7 is disposed close to the second fixing member 5.

The first clamping piece 6, the second clamping piece 7, the first fixing piece 4 and the second fixing piece 5 are circumferentially distributed, so that space can be saved, the compactness of the structure is improved, in addition, the dosing mechanism 3 can be moved to a liquid suction position and a liquid injection position through a turning radius of a fixed angle, and the application and control of a path are facilitated. The first clamping piece 6 and the second clamping piece 7 are arranged between the first fixing piece 4 and the second fixing piece 5, the first clamping piece 6 is close to the first fixing piece 4, the second clamping piece 7 is close to the second fixing piece 5, the ampoule bottle 8 and the infusion bag 9 corresponding to one liquid preparation station are close to each other, and liquid adding is convenient to control, and whether liquid preparation is accurate is convenient for operators to observe.

Preferably, as shown in fig. 2, the angle between the first fixing member 4 and the second fixing member 5 is 180 °, and the angle between the first clamping member 6 and the first fixing member 4 is equal to the angle between the second clamping member 7 and the second fixing member 5.

The angle between the first fixing piece 4 and the second fixing piece 5 is specifically an angle between a connecting line of the central point of the first fixing piece 4 and the axis of the rotating shaft of the dosing mechanism 3 and a connecting line of the central point of the second fixing piece 5 and the axis of the rotating shaft of the dosing mechanism 3, and is also an adjacent circumferential angle between two liquid pumping positions; the angle between the first clamping piece 6 and the first fixing piece 4 is specifically an angle between a connecting line of the central point of the first clamping piece 6 and the axis of the rotating shaft of the dosing mechanism 3 and a connecting line of the central point of the first fixing piece 4 and the axis of the rotating shaft of the dosing mechanism 3, and is also a circumferential angle between the first liquid injection position and the first liquid extraction position; the angle between the second clamping piece 7 and the second fixing piece 5 is specifically an angle between a connecting line of the central point of the second clamping piece 7 and the axis of the rotating shaft of the dosing mechanism 3 and a connecting line of the central point of the second fixing piece 5 and the axis of the rotating shaft of the dosing mechanism 3, and is also a circumferential angle between the second liquid injection position and the second liquid extraction position.

As shown in fig. 2, the angle between the first fixing member 4 and the second fixing member 5 is 180 °, that is, the first fixing member 4 and the second fixing member 5 are symmetrically arranged, the angle b between the first clamping member 6 and the first fixing member 4 is equal to the angle a between the second clamping member 7 and the second fixing member 5, and in this arrangement, the rotation path of the dosing mechanism 3 is conveniently controlled and the positioning is convenient.

Preferably, as shown in fig. 3 and 4, the dosing mechanism 3 comprises a fixed seat 31, a mounting assembly 32 and a driving assembly 33. The fixing base 31 is used for fixing the mounting assembly 32 and the driving assembly 33, and its specific structure can be specifically set according to the specific structure and setting position of the mounting assembly 32 and the driving assembly 33.

The driving component 33 is mounted on the fixing seat 31, the mounting component 32 is used for being connected with the syringe 10, the driving component 33 is connected with the mounting component 32 and can drive the mounting component 32 to move along the vertical direction so as to drive the syringe 10 to pump and inject liquid; the fixed seat 31 is pivotally mounted on the mounting seat 1 through a vertical shaft, and the rotary driving member 2 is connected with the fixed seat 31 and can drive the fixed seat 31 to rotate around the vertical shaft relative to the mounting seat 1.

The dosing mechanism 3 is arranged as a fixed seat 31, a mounting assembly 32 and a driving assembly 33, and has simple structure and convenient preparation and assembly and use.

Preferably, as shown in fig. 4, the driving assembly 33 includes a screw 331, a first closed-loop through screw motor 332, and a second closed-loop through screw motor 333.

The screw rod 331 is vertically installed on the installation seat 1, and can rotate relative to the installation seat 1, the first closed-loop penetrating screw rod motor 332 and the second closed-loop penetrating screw rod motor 333 are sleeved on the screw rod 331 and are matched with the screw rod 331, and the first closed-loop penetrating screw rod motor 332 is located above the second closed-loop penetrating screw rod motor 333.

The mounting assembly 32 includes a first mounting member 321 and a second mounting member 322, one end of the first mounting member 321 is connected with a first closed-loop penetrating screw motor 332, the other end of the first mounting member 321 is connected with a piston handle of the syringe 10, one end of the second mounting member 322 is connected with a second closed-loop penetrating screw motor 333, and the other end of the second mounting member 322 is connected with a syringe barrel of the syringe 10.

The driving assembly 33 is arranged to be the screw 331, the first closed-loop penetrating screw motor 332 and the second closed-loop penetrating screw motor 333 are matched with the same screw 331 for use, the up-and-down moving position is accurate, the step losing phenomenon can not occur, and the linkage precision can be ensured. In addition, the arrangement mode is simple in structure and low in cost.

The driving assembly 33 drives the mounting assembly 32 to move along the vertical direction so as to drive the syringe 10 to pump and inject the liquid, which is as follows:

(1) And (3) liquid pumping operation: the first closed-loop penetrating screw motor 332 and the second closed-loop penetrating screw motor 333 operate forward at the same speed and drive the screw 331 to rotate forward, so that the first closed-loop penetrating screw motor 332 and the second closed-loop penetrating screw motor 333 respectively drive the first mounting piece 321 and the second mounting piece 322 to move downwards at the same speed, namely drive the whole injector 10 to move downwards, and the injection needle on the injector 10 is inserted into the ampoule 8; when the injection needle is inserted into the ampoule bottle 8, the second closed-loop penetrating screw motor 333 does not operate any more, so that the position of the injector 10 is kept stable, the first closed-loop penetrating screw motor 332 operates reversely and drives the screw 331 to rotate reversely, so that the first mounting piece 321 is driven to move upwards and the piston rod of the injector 10 is driven to move upwards, the liquid medicine in the ampoule bottle 8 is pumped into the injector 10, and when the liquid medicine with a preset volume is pumped, the first closed-loop penetrating screw motor 332 stops operating; after that, the first closed-loop penetrating screw motor 332 and the second closed-loop penetrating screw motor 333 operate in the same speed in the opposite direction and drive the screw 331 to rotate in the opposite direction, so that the first closed-loop penetrating screw motor 332 and the second closed-loop penetrating screw motor 333 respectively drive the first mounting member 321 and the second mounting member 322 to move upwards at the same speed, and the injector 10 integrally moves upwards, so that the injection needle is far away from the ampoule bottle 8.

(2) And (3) liquid injection operation: the first closed-loop penetrating screw motor 332 and the second closed-loop penetrating screw motor 333 operate forward at the same speed and drive the screw 331 to rotate forward, so that the first closed-loop penetrating screw motor 332 and the second closed-loop penetrating screw motor 333 respectively drive the first mounting piece 321 and the second mounting piece 322 to move downwards at the same speed, namely drive the whole injector 10 to move downwards, and the injection needle on the injector 10 is inserted into the infusion bag 9; after the injection needle is inserted into the infusion bag 9, the second closed-loop penetrating screw motor 333 does not run any more, so that the position of the injector 10 is kept stable, the first closed-loop penetrating screw motor 332 continues to run forward and drives the screw 331 to rotate, so that the first mounting piece 321 is driven to move downwards and the piston rod of the injector 10 is driven to move downwards, the liquid medicine of the injector 10 is injected into the infusion bag 9, and after all injection is finished, the first closed-loop penetrating screw motor 332 runs in the reverse direction and the forward direction for several times respectively, so that the injector 10 repeatedly performs liquid suction and liquid injection, and the liquid medicine in the infusion bag 9 is uniformly mixed; then, the first closed-loop penetrating screw motor 332 and the second closed-loop penetrating screw motor 333 run in the same speed in the opposite direction and drive the screw 331 to rotate in the opposite direction, so that the first closed-loop penetrating screw motor 332 and the second closed-loop penetrating screw motor 333 drive the first mounting member 321 and the second mounting member 322 to move upwards at the same speed respectively, and further the injector 10 moves upwards integrally, and the injection needle is far away from the infusion bag 9.

Preferably, as shown in fig. 4, the other end of the first mounting member 321 is provided with a first clamping groove 3211, the piston handle is clamped in the first clamping groove 3211, the thickness of the piston handle is the same as that of the first clamping groove 3211, and the first clamping groove 3211 can limit the piston handle to move up and down relative to the first clamping groove 3211; the other end of the second mounting piece 322 is provided with a first limit groove 3221 and a second limit groove 3222 which are vertically distributed, the injection tube penetrates through the first limit groove 3221 and the second limit groove 3222, a second clamping groove 32211 is arranged in the first limit groove 3221, the end part of the injection tube far away from the injection head is clamped in the second clamping groove 32211, and the second clamping groove 32211 can limit the injection tube to move up and down relative to the second clamping groove 32211.

The first mounting piece 321 clamps the piston handle in the first clamping groove 3211, the second mounting piece 322 clamps the end part of the injection cylinder in the second clamping groove 32211, and the structure is simple and the fixing effect is good.

Preferably, as shown in fig. 4, the dosing mechanism 3 further comprises a guiding assembly 34, the guiding assembly 34 being located between the fixed seat 31 and the mounting assembly 32, the guiding assembly 34 being arranged to be able to guide when the mounting assembly 32 is moved.

The mounting assembly 32 can be moved in a vertical direction by providing the guide assembly 34, thereby avoiding horizontal displacement of the syringe 10 during vertical movement.

Preferably, as shown in fig. 4, the guide assembly 34 includes a linear slide 341, a first guide slider 342, and a second guide slider 343.

The linear slide 341 is mounted on the fixing seat 31 along the vertical direction, the first guide slide 342 and the second guide slide 343 are both matched with the linear slide 341 and can move along the linear slide 341, the first guide slide 342 is connected with the first mounting piece 321 or the first closed-loop penetrating screw motor 332, and the second guide slide 343 is connected with the second mounting piece 322 or the second closed-loop penetrating screw motor 333.

The guide assembly 34 is arranged as the linear slide rail 341, the first guide slide block 342 and the second guide slide block 343, and has simple structure and convenient assembly and use.

Finally, it should be noted that the specific structure of the rotary driving member 2 is not limited in the present utility model, and only the rotary driving member 2 can drive the dosing mechanism 3 to rotate, and in practical application, a person skilled in the art can set the structure of the rotary driving member 2 according to the actual needs. For example, the rotary driving member 2 may be provided as a servo motor, or the rotary driving member 2 may be provided as a stepping motor, or the like. Such modifications and changes in the specific structure of the rotary driving member 2 do not depart from the basic principle of the present utility model and are intended to be within the scope of the present utility model.

In addition, the utility model also provides a liquid preparation system which comprises the rotary dosing device.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (10)

1. A rotary dosing device is characterized by comprising a mounting seat, a rotary driving piece and a dosing mechanism,

the rotary driving piece and the dosing mechanism are arranged on the mounting seat,

the rotary driving piece is connected with the dosing mechanism and can drive the dosing mechanism to rotate around a vertical shaft relative to the mounting seat so as to enable the dosing mechanism to move to a liquid pumping position and a liquid filling position,

the medicine adding mechanism is arranged to drive the injector to pump and inject liquid so as to pump the liquid medicine in the ampoule bottle into the injector at the liquid pumping position and inject the liquid medicine in the injector into the infusion bag at the liquid injection position.

2. The rotary dosing device according to claim 1, wherein the number of the liquid pumping positions is two, a first fixing piece and a second fixing piece are respectively arranged at the two liquid pumping positions, the first fixing piece and the second fixing piece can fix ampoule bottles,

the number of the liquid injection positions is two, the two liquid injection positions are respectively provided with a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece can fix the infusion bag,

the first clamping piece, the second clamping piece, the first fixing piece and the second fixing piece are all located below the dosing mechanism.

3. The rotary dosing device of claim 2, wherein the first clamping member, the second clamping member, the first fixing member, and the second fixing member are circumferentially distributed, the first clamping member and the second clamping member are both located between the first fixing member and the second fixing member, the first clamping member is disposed adjacent to the first fixing member, and the second clamping member is disposed adjacent to the second fixing member.

4. A rotary dosing device according to claim 3, wherein the angle between the first and second fixing members is 180 °, the angle between the first clamping member and the first fixing member being equal to the angle between the second clamping member and the second fixing member.

5. The rotary dosing device of claim 1, wherein the dosing mechanism comprises a fixed seat, a mounting assembly, and a drive assembly,

the driving component is arranged on the fixed seat, the installation component is used for being connected with the injector, the driving component is connected with the installation component and can drive the installation component to move along the vertical direction so as to drive the injector to pump and inject liquid,

the fixed seat is pivotally mounted on the mounting seat through the vertical shaft, and the rotary driving piece is connected with the fixed seat and can drive the fixed seat to rotate around the vertical shaft relative to the mounting seat.

6. The rotary dosing device of claim 5, wherein the drive assembly comprises a screw and a first closed-loop through screw motor and a second closed-loop through screw motor sleeved on the screw and matched with the screw,

the screw rod is vertically arranged on the mounting seat and can rotate relative to the mounting seat, the first closed-loop penetrating screw rod motor is positioned above the second closed-loop penetrating screw rod motor,

the installation component includes first installed part and second installed part, the one end of first installed part with first closed loop runs through type lead screw motor and is connected, the other end of first installed part with the piston handle of syringe is connected, the one end of second installed part with second closed loop runs through type lead screw motor and is connected, the other end of second installed part with the injection tube of syringe is connected.

7. The rotary dosing device according to claim 6, wherein a first clamping groove is formed in the other end of the first mounting piece, the piston handle is clamped in the first clamping groove, the thickness of the piston handle is the same as that of the first clamping groove,

the other end of the second mounting piece is provided with a first limit groove and a second limit groove which are distributed up and down, the injection cylinder penetrates through the first limit groove and the second limit groove,

the first limiting groove is internally provided with a second clamping groove, and the end part of the injection cylinder far away from the injection head is clamped in the second clamping groove.

8. The rotary dosing device of claim 6, wherein the dosing mechanism further comprises a guide assembly positioned between the fixed mount and the mounting assembly, the guide assembly configured to guide when the mounting assembly is moved.

9. The rotary dosing device of claim 8, wherein the guide assembly comprises a linear slide, a first guide slide, and a second guide slide,

the linear slide rail is installed on the fixing base and is vertically arranged, the first guide slide block and the second guide slide block are matched with the linear slide rail and can move along the linear slide rail, the first guide slide block is connected with the first mounting piece or the first closed-loop penetrating type screw motor, and the second guide slide block is connected with the second mounting piece or the second closed-loop penetrating type screw motor.

10. A liquid dispensing system comprising a rotary dosing device according to any one of claims 1 to 9.