CN210473635U

CN210473635U - Solution blending device

Info

Publication number: CN210473635U
Application number: CN201920511902.XU
Authority: CN
Inventors: 张丽娜; 彭熠达; 成惠泽
Original assignee: Shenyang Institute of Technology
Current assignee: Shenyang Institute of Technology
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2020-05-08
Anticipated expiration: 2029-04-15

Abstract

The utility model discloses a solution blending device, which is characterized in that two runners are symmetrically arranged in the main body, the liquid outlets of the two runners are converged at the liquid outlet of the main body, the liquid inlet of each runner is respectively connected with the same liquid feeding pipe, the inlet end of each liquid feeding pipe is communicated with a connecting cavity on the main body, and the liquid feeding pipe connected with the bottom of the connecting cavity is connected with a corresponding medicament barrel; the flow passage control device comprises a plurality of flow passages, wherein each flow passage is provided with a flow stopping plug, the two flow stopping plugs are connected and synchronously move, the initial positions of the two flow stopping plugs in the non-working state enable the corresponding flow passages controlled by the flow stopping plugs to have the same opening degree, the flow stopping plugs are connected with pistons through connecting rods, and each sliding cavity is communicated with the corresponding connecting cavity, so that negative pressure generated in the conveying process of medicaments can push the pistons to slide in the sliding cavities and drive the flow stopping plugs to block/open the flow passages. The solution blending device has the advantages of simple structure, low cost, economy and applicability.

Description

Solution blending device

Technical Field

The utility model belongs to the technical field of the solution mixes, especially, relate to a device of configuration solution.

Background

In industrial production, A, B two kinds of liquid medicine (medicament) are required to be mixed to prepare a mixed solution with a certain concentration, when the mixed solution is actually used, the mixed solution with a ratio close to 1:1 is required, the proximity is different according to different requirements, for example, the mixed solution with the medicament A as the main component or the mixed solution with the medicament B as the main component is biased, and the mixed solutions do not require very accurate concentration percentage, although the currently adopted high-precision automatic preparation instrument can prepare the mixed solution with higher concentration accuracy and higher preparation efficiency, the use cost is higher, especially the cost of purchasing equipment and daily maintenance are higher, the preparation of the mixed solution in the situation is not suitable, for example, when the mixed solution which is acidic or alkaline or tends to be neutral, the preparation concentration accuracy is not required, high-precision automatic preparation instruments are not suitable and have high cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned technical problem, provide a solution blending device, this solution blending device simple structure, low cost, and can carry out extensive formula's quick preparation according to the concentration of mixed liquid in a flexible way, economy is suitable for.

The technical scheme of the utility model as follows:

a solution blending device comprises a main body, wherein a liquid outlet is formed in the main body, two flow passages are symmetrically arranged in the main body in the left-right direction, the liquid outlets of the two flow passages are converged at the liquid outlet, the liquid inlet of each flow passage is connected with the same liquid feeding pipe, the inlet end of each liquid feeding pipe is communicated with a corresponding connecting cavity on the main body and is connected with a corresponding medicament barrel through a liquid inlet pipe connected with the bottom of the connecting cavity, so that medicaments in the two medicament barrels are simultaneously injected into a blending tank through the liquid outlets through one flow passage;

the flow passage control device comprises a main body, a plurality of flow passages, a plurality of closure plugs, a connecting rod and a piston, wherein each closure plug is arranged close to each flow passage, the two closure plugs are connected and move synchronously, the initial positions of the two closure plugs in the non-working state enable the corresponding flow passages controlled by the closure plugs to have the same opening degree, the closure plugs are connected with the piston through the connecting rod, the piston can slide in a sliding cavity in the main body in a dynamic sealing mode, and each sliding cavity is communicated with the corresponding connecting cavity, so that negative pressure generated in the conveying process of medicaments can push the piston to slide in the sliding cavity and drive the closure plugs to close/open the flow passages.

Furthermore, the shutoff plugs are ∟ -shaped and are connected through a slidable sliding rod horizontally arranged in the main body to form a pi-shaped structure, and the connecting rod, the piston, the sliding cavity and the connecting cavity are all positioned between the two shutoff plugs.

Further, a power pump for pumping a medicine requiring a gradual addition amount is installed on a liquid feeding pipe of the medicine.

Furthermore, a cylindrical spring for limiting the initial position of the closure plug is sleeved on the connecting rod between the piston and the cavity bottom of the sliding cavity at the side close to the closure plug, and two ends of the cylindrical spring are respectively connected with the end surface of the piston and the cavity bottom of the closure plug, so that the initial positions of the two closure plugs in the non-working state enable corresponding flow passages controlled by the two closure plugs to have the same opening degree.

The utility model has the advantages that: the utility model provides a prepare the selection that the device can realize certain principal ingredients of extensive formula and prepare, the precision of its solution concentration can not compare with the outfit of high accuracy, nevertheless, prepares to general extensive formula, is economic and applicable undoubtedly. The preparation device can avoid the problem that the quality of mixed liquid mainly containing a certain medicament is unstable when the medicament is added by subjectively and manually, is particularly suitable for adding the medicament which needs a certain injection speed in the preparation process, and overcomes the condition that when the medicament is injected manually at one time or in multiple times, a large amount of liquid medicament is injected instantly each time to cause uneven mixing and even violent reaction; for example, the solution preparing apparatus is suitable for a mixed solution which needs to be added and stirred at the same time, and therefore, the solution preparing apparatus is simple in structure, low in cost, capable of performing extensive rapid preparation according to the concentration of the mixed solution, and economical and practical.

Drawings

FIG. 1 is a schematic structural diagram of a solution preparing apparatus in an initial state.

Fig. 2 is a schematic structural view of the solution preparing apparatus with a closed flow channel at one side.

Element number description: the device comprises a main body 1, a liquid outlet 2, a flow channel 3, a liquid feeding pipe 4, a liquid feeding pipe 5, a slide rod 6, a piston 7, a cylindrical spring 8, a connecting rod 9, a closure plug 10 and a connecting cavity 11.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1, this embodiment provides a solution blending device, including main part 1, be equipped with a liquid outlet 2 in main part 1, can set up the valve on liquid outlet 2, main part 1 is inside still to be arranged two runners 3 bilaterally symmetrically, the liquid outlet 2 of two runners 3 meet in liquid outlet 2 department, can directly communicate the back and meet during actual preparation, also can the liquid outlet 2 of two runners 3 link to each other with liquid outlet 2 through an independent pipeline respectively. The liquid inlet of each flow channel 3 is connected with the same liquid feeding pipe 4, which can be made into a semicircular shape with an upward opening, and the inlet end of each liquid feeding pipe 4 is communicated with the corresponding connecting cavity 11 on the main body 1 and is connected with the corresponding medicament barrel through the liquid inlet pipe 5 connected with the bottom of the connecting cavity 11, so that the medicaments in the two medicament barrels (not shown in the figure) can be simultaneously injected into the blending tank through one flow channel 3 and the liquid outlet 2.

In this embodiment, a shut-off plug 10 is further disposed near each flow channel 3, the two shut-off plugs 10 are connected and move synchronously, the two shut-off plugs 10 are located at initial positions in a non-working state such that the corresponding flow channels 3 controlled by the two shut-off plugs have the same opening degree, so that the medicament can start to be filled at the same flow rate in the initial state, the shut-off plugs 10 are connected with a piston 7 through a connecting rod 9, the piston 7 can slide in a sliding cavity in the main body 1 in a dynamic sealing manner, each sliding cavity is communicated with a corresponding connecting cavity 11, so that negative pressure generated during medicament delivery can push the piston 7 to slide in the sliding cavity and drive the shut-off plugs 10 to close/open the flow channels 3, that is, the piston 7 is attracted and moved due to negative pressure inside the flow channels 3 or the conduit when the medicament flows.

When the injection speed of the two medicaments is the same, a mixed solution with the ratio of 1:1 or close to the ratio is prepared. When preparing one of the regulating liquids, placing the A medicament and the B medicament in corresponding medicament barrels in advance, then injecting the medicaments into the preparation tank through pumps (not shown in the figures) on conveying pipelines of the two medicaments, wherein the initial injection flow rate is the same, gradually regulating and increasing the injection amount of the A medicament along with the progress of the injection, the piston 7 at the side where the A medicament is located is attracted and moved due to the fact that the flow rate is increased and the negative pressure value is larger, the closure plug 10 at the side is driven to move, the flow channel 3 at the side is further opened, as the two closure plugs 10 are connected into a whole and move synchronously, the other closure plug 10 moves towards the direction of gradually closing the flow channel 3 at the side, the flow rate of the flow channel 3 at the other side opposite to the A medicament is reduced and finally closed (as shown in figure 2), and accordingly the A medicament is gradually reduced while the flow rate is gradually increased, so as to form a mixed solution with the A medicament as the main component. In the same way, the mixed solution with the B medicament as the main component is prepared. In this case, it is convenient to obtain a solution with a certain concentration, and if it is necessary to prepare a mixed solution of 1:1 more quickly and economically, it is possible to add a mixed solution formed by corresponding variable-speed injection to a mixed solution prepared by the same injection speed of two drugs. Of course, it is possible to more rapidly prepare a mixed solution containing a or B as a main component. The preparation device provided by the embodiment can realize extensive main component selection and preparation, and although the precision of the preparation device cannot be compared with a high-precision preparation instrument, the preparation device is economical and applicable to general extensive preparation; the method avoids the problem that the mixed solution mainly containing the medicament is prepared by subjectively adding certain medicaments by hand, is particularly suitable for the medicaments needing a certain injection speed in the preparation process, and overcomes the problem of uneven mixing and even violent reaction caused by injecting a large amount of liquid medicament instantly each time when the medicaments are injected manually at one time or in multiple times; for example, the method is suitable for a mixed solution which is required to be stirred while gradually adding the solution.

Further, in order to realize the synchronous movement of the two closure plugs 10, the closure plugs 10 are ∟ -shaped and are connected by a slidable slide bar 6 horizontally arranged in the main body 1 to form a structure of pi-shape, and the connecting rod 9, the piston 7, the slide cavity and the connecting cavity 11 are all positioned between the two closure plugs 10.

Further, a power pump (not shown in the drawings) for pumping a medicine requiring a gradual addition amount is installed on the liquid sending tube 4 of the medicine, so that the piston 7 in the sliding chamber at the connection chamber 11 is better moved by the negative pressure.

Furthermore, a cylindrical spring 8 for limiting the initial position of the closure plug 10 is sleeved on a connecting rod 9 between the piston 7 and the cavity bottom of the sliding cavity on the side close to the closure plug 10, and two ends of the cylindrical spring 8 are respectively connected with the end surface of the piston 7 and the cavity bottom of the closure plug 10, so that the initial positions of the two closure plugs 10 in the non-working state enable the corresponding flow channels 3 controlled by the two closure plugs to have the same opening degree, and the closure plug 10 can be well reset after the work is stopped.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A solution blending device is characterized in that: the liquid dispensing device comprises a main body, wherein a liquid outlet is formed in the main body, two flow passages are symmetrically arranged in the main body in the left-right direction, the liquid outlets of the two flow passages are converged at the liquid outlet, the liquid inlet of each flow passage is connected with the same liquid feeding pipe, the inlet end of each liquid feeding pipe is communicated with a corresponding connecting cavity on the main body and is connected with a corresponding medicament barrel through the liquid inlet pipe connected with the bottom of the connecting cavity, so that medicaments in the two medicament barrels are simultaneously injected into a dispensing tank through one flow passage and the liquid outlet;

2. The solution preparing apparatus according to claim 1, wherein the shut-off plugs are ∟ -shaped and are connected by a slidable slide bar horizontally disposed in the main body to form a pi-shaped structure, and the connecting rod, the piston, the slide cavity and the connecting cavity are all located between the two shut-off plugs.

3. The solution preparing apparatus according to claim 1, wherein: a power pump for pumping the medicine to be added gradually is installed on the liquid feeding pipe of the medicine.

4. The solution preparing apparatus according to claim 1, wherein: the cylinder spring for limiting the initial position of the closure plug is sleeved on the connecting rod between the piston and the cavity bottom of the sliding cavity at one side close to the closure plug, and two ends of the cylinder spring are respectively connected with the end surface of the piston and the cavity bottom of the closure plug, so that the initial positions of the two closure plugs in the non-working state enable corresponding flow channels controlled by the two closure plugs to have the same opening degree.