Liquid preparation auxiliary device

Abstract

The utility model relates to a mixing container, and discloses a liquid preparation auxiliary device, which comprises a variable-volume container, an extrusion assembly and a driving assembly, the variable-volume container has a certain volume and is communicated with a dry powder container filled with dry powder below through a second opening; the volume of the whole device formed by communicating the variable-volume container with the dry powder container can reach the volume required by liquid preparation, so that a solvent can enter the variable-volume container from the second opening and flow out of the first opening of the variable-volume container to be circularly dissolved; when liquid preparation is completed and disinfection is needed, the variable-volume container is made of an elastic material and is arranged between the first extrusion part and the second extrusion part, and the second extrusion part is driven by the driving assembly to move relative to the first extrusion part, so that the variable-volume container is extruded, the overall pressure of the variable-volume container is reduced, and an internal cavity is correspondingly reduced; therefore, the purposes of saving time for disinfecting the variable-volume container and the container filled with the dry powder A and saving the use amount of disinfection articles are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of mixed containers, in particular to a kind of auxiliary device for liquid preparation. BACKGROUND

[0002] Dialysis treatment needs to use dialysis fluid, which purifies blood by solute exchange with blood on both sides of dialysis membrane. Dialysis fluid is usually made by mixing A concentrate and B concentrate with reverse osmosis water. Since B concentrate is slightly alkaline, it is easy to grow bacteria, so it is usually made into dry powder state to inhibit bacterial growth and facilitate transportation and storage. Similarly, A concentrate is also usually made into dry powder state.

[0003] Single-serve A liquid needs about 5L of water to dissolve and prepare with A dry powder. If water is directly injected into the dry powder container containing A dry powder to prepare liquid, the dry powder container needs to have a large volume.

[0004] In order to ensure the sterility of the final dialysis fluid, the dry powder container needs to be disinfected frequently. If the dry powder container has a large volume, it means that more time and cost are needed to disinfect the dry powder container, and it is inconvenient to operate, time-consuming and laborious. SUMMARY

[0005] The purpose of the utility model is to provide an auxiliary device for liquid preparation, which solves the problem of long time consumption and excessive use of disinfectant when disinfecting a large-volume dry powder container in the prior art.

[0006] In order to achieve the above purpose, the utility model provides an auxiliary device for liquid preparation, which comprises a variable-volume container, a squeezing assembly and a driving assembly.

[0007] The variable-volume container is made of a material with elasticity, and the two ends of the variable-volume container are respectively provided with a first opening and a second opening.

[0008] The squeezing assembly comprises a first squeezing member and a second squeezing member, which are parallel and spaced apart, and the variable-volume container is arranged between the first and second squeezing members.

[0009] The output end of the driving assembly is connected to the second squeezing member, and the driving assembly can drive the second squeezing member to move relative to the first squeezing member to squeeze or release the variable-volume container.

[0010] Further, the driving assembly comprises a driving motor, a mounting seat, a linear motion mechanism and a connecting rod.

[0011] The driving motor is arranged on the mounting base, the mounting base is provided with a mounting cavity, the linear motion mechanism is arranged in the mounting cavity and connected with the output end of the driving motor;

[0012] One end of the connecting rod is connected to the second extrusion piece, the other end of the connecting rod is slidably arranged in the mounting base and connected with the linear motion mechanism, the linear motion mechanism is used for driving the connecting rod to move linearly, thereby driving the second extrusion piece to move close to or away from the first extrusion piece.

[0013] Further, the linear motion mechanism comprises a screw rod, a guide rod and a connecting piece;

[0014] The screw rod and the guide rod are arranged in parallel with the connecting rod; the screw rod is rotatably connected to the mounting base and fixedly connected with the output end of the driving motor, and the guide rod is fixedly connected to the mounting base;

[0015] The connecting piece is sleeved on the outer periphery of the screw rod and screwed with the screw rod, and the connecting piece is slidably sleeved on the guide rod;

[0016] The other end of the connecting rod is connected to the connecting piece.

[0017] Further, the linear motion mechanism further comprises two limiting pieces;

[0018] The two limiting pieces are fixedly sleeved on the guide rod at intervals, and the connecting piece is located between the two limiting pieces; the two limiting pieces are used for limiting the movement distance of the connecting piece.

[0019] Further, the driving assembly further comprises a gear set, and the gear set comprises a driving gear and a driven gear;

[0020] The driving motor comprises a housing and an output shaft;

[0021] The mounting base is provided with an extension on the side surface away from the second extrusion piece, the extension is arranged to extend outwardly perpendicular to the axial direction of the screw rod; the housing is connected to the extension, and the output shaft is parallel to the screw rod;

[0022] The driving gear is fixedly connected to the output shaft, the driven gear is fixedly connected to the screw rod, and the driving gear is in transmission connection with the driven gear.

[0023] Further, the first extrusion piece and the second extrusion piece are respectively connected with the variable volume container.

[0024] Further, the first extrusion piece and the second extrusion piece are respectively connected with the variable volume container in a detachable manner.

[0025] Further, the plug-in piece is further included.

[0026] At least two insertion holes are formed in the first and second extruding members; the number of the insertion members is the same as that of the insertion holes and the insertion members are arranged one by one in correspondence with the insertion holes and are fixedly connected to the outer wall of the variable volume container;

[0027] Each of the insertion members is inserted into the corresponding insertion hole.

[0028] Further, the insertion member comprises a connecting part and a limiting part, the connecting part is fixedly connected to the variable volume container, the limiting part penetrates the insertion hole and abuts against the side of the first or second extruding member which is away from the variable volume container, and the side of the first and second extruding members which is towards the variable volume container forms an extruding plane for abutting against the variable volume container.

[0029] Further, a magnet assembly is further included;

[0030] The magnet assembly comprises a movable magnet and a limiting electromagnet, the movable magnet is fixedly arranged on the second extruding member, the limiting electromagnet is arranged on the limiting part, and when the connecting part contacts the limiting part, the limiting electromagnet is started to lock the position of the second extruding member.

[0031] Compared with the prior art, the auxiliary device for preparing liquid has the following beneficial effects:

[0032] The auxiliary device for preparing liquid comprises a variable volume container, an extruding assembly and a driving assembly, the variable volume container has a certain volume, is vertically placed during use, and has a second opening located below and in communication with a dry powder container which contains dry powder, so that the volume of the device formed by the communication between the variable volume container and the dry powder container can meet the volume required for preparing liquid, and a solvent used for preparing liquid can enter the variable volume container from the second opening and flow out of the variable volume container through a first opening of the variable volume container to be circulated and dissolved; when sterilization is required after the preparation of liquid is completed, the variable volume container is made of a material with elasticity, and is arranged between the first and second extruding members, the second extruding member is driven to move relative to the first extruding member by the driving assembly, so that the variable volume container is extruded and the whole variable volume container is compressed to be smaller, and the internal cavity is also correspondingly reduced, so that the time required for sterilizing the variable volume container and the dry powder container and the amount of sterilizing supplies are saved. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a perspective structural schematic view of an auxiliary device for preparing liquid according to an embodiment of the present application;

[0034] Figure 2is a stereogram of the second extrusion piece and the driving assembly in the liquid preparation auxiliary device of the embodiment of the utility model;

[0035] Figure 3 is a connection structure diagram of the variable volume container, the extrusion assembly and the plug-in piece in the liquid preparation auxiliary device of the embodiment of the utility model;

[0036] Figure 4 is a connection structure diagram of the variable volume container and the plug-in piece in the liquid preparation auxiliary device of the embodiment of the utility model.

[0037] In the drawing, 100, liquid preparation auxiliary device;1, variable volume container;11, connecting block;2, extrusion assembly;20, extrusion plane;21, first extrusion piece;22, second extrusion piece;3, driving assembly;31, driving motor;311, shell;312, output shaft;32, mounting seat;320, installation cavity;321, extension;33, linear motion mechanism;331, screw;332, guide rod;333, connecting piece;334, limiting piece;34, connecting rod;35, gear set;351, driving gear;352, driven gear;4, plug-in piece;41, connecting part;42, limiting part. DETAILED DESCRIPTION

[0038] The specific implementation of the utility model will be described in further detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0039] As Figures 1 to 3 Indicated, the liquid preparation auxiliary device 100 of the embodiment of the utility model, it includes variable volume container 1, extrusion assembly 2 and driving assembly 3;Variable volume container 1 is made of the material with elasticity, and the both ends of variable volume container 1 are respectively provided with first opening and second opening;Extrusion assembly 2 includes first extrusion piece 21 and second extrusion piece 22, and first extrusion piece 21 and second extrusion piece 22 are parallel and interval arrangement, and variable volume container 1 is located between first extrusion piece 21 and second extrusion piece 22;The output end of driving assembly 3 is connected with second extrusion piece 22, and second extrusion piece 22 can be driven to move relative to first extrusion piece 21, to extrude or release variable volume container 1.

[0040] Based on the above technical scheme, the liquid preparation auxiliary device 100 comprises a variable volume container 1, an extrusion assembly 2 and a driving assembly 3. The variable volume container 1 has a certain volume. In use, the variable volume container 1 is vertically placed, so that the second opening is located below and communicates with the dry powder container containing A dry powder, so that the volume of the device formed by the communication between the variable volume container 1 and the dry powder container can reach the volume required for liquid preparation. The solvent used for liquid preparation can enter the variable volume container 1 from the second opening and flow out through the first opening of the variable volume container 1 for circulation and dissolution. When disinfection is required after liquid preparation is completed, since the variable volume container 1 is made of a material with elasticity and is arranged between the first extrusion piece 21 and the second extrusion piece 22, the second extrusion piece 22 is driven to move relative to the first extrusion piece 21 by the driving assembly 3, so that the variable volume container 1 is extruded and the whole is compressed to be smaller, and the internal cavity is also correspondingly reduced, so that the purpose of saving the time and disinfecting supplies required for disinfecting the variable volume container 1 and the dry powder container is achieved.

[0041] Further, as shown in Figure 1 and Figure 2 to specifically realize that the driving assembly 3 drives the second extrusion piece 22 to move close to or away from the first extrusion piece 21, the driving assembly 3 comprises a driving motor 31, a mounting seat 32, a linear motion mechanism 33 and a connecting rod 34. The driving motor 31 is arranged on the mounting seat 32, the mounting seat 32 is provided with a mounting cavity 320, the linear motion mechanism 33 is arranged in the mounting cavity 320 and connected with the output end of the driving motor 31. One end of the connecting rod 34 is connected with the second extrusion piece 22, the other end is slidably arranged in the mounting seat 32 and connected with the linear motion mechanism 33. The linear motion mechanism 33 is used to drive the connecting rod 34 to move linearly, and then drive the second extrusion piece 22 to move close to or away from the first extrusion piece 21, so that the variable volume container 1 is compressed to be smaller or restored to the original state.

[0042] Further, as shown in Figure 1 and Figure 2 , the linear motion mechanism 33 comprises a screw rod 331, a guide rod 332 and a connecting piece 333. The screw rod 331 and the guide rod 332 are arranged in parallel with the connecting rod 34. The screw rod 331 is rotatably connected to the mounting seat 32 and fixedly connected with the output end of the driving motor 31. The guide rod 332 is fixedly connected to the mounting seat 32. The connecting piece 333 is sleeved on the outer periphery of the screw rod 331 and screwed with the screw rod 331. The connecting piece 333 is slidably sleeved on the guide rod 332. The other end of the connecting rod 34 is connected to the connecting piece 333. When the driving motor 31 is started, the screw rod 331 rotates under the drive of the driving motor 31. The connecting piece 333 screwed on the screw rod 331 moves linearly along the axial direction of the screw rod 331 under the limiting action of the guide rod 332, and then drives the connecting rod 34 connected with the connecting piece 333 to move linearly.

[0043] Further, asFigure 1 and Figure 2 As shown in

[0044] Preferably, the variable-volume container 1 is made of fluororubber or silicone.

[0045] Further, as shown in Figure 1 and Figure 2 The driving assembly 3 further comprises a gear set 35, which comprises a driving gear 351 and a driven gear 352; the driving motor 31 comprises a housing 311 and an output shaft 312; the mounting seat 32 is provided with an extension 321 on the side surface away from the second extrusion member, which extends outwardly perpendicular to the axial direction of the screw rod 331; the housing 311 is connected to the extension 321, and the output shaft 312 is parallel to the screw rod 331; the driving gear 351 is fixedly connected to the output shaft 312, the driven gear 352 is fixedly connected to the screw rod 331, and the driving gear 351 is in transmission connection with the driven gear 352. Through the transmission of the connected driving gear 351 and driven gear 352, the load of the driving motor 31 directly driving the screw rod 331 is reduced, and the transmission precision is improved.

[0046] Further, the first extrusion member 21 and the second extrusion member 22 are respectively connected to the variable-volume container 1. By connecting the variable-volume container 1 to the first extrusion member 21 and the second extrusion member 22, the variable-volume container 1 is more stable when solvent is injected into it, and is less likely to shake.

[0047] Further, as shown in Figure 1 and Figure 3 In order to facilitate the maintenance and replacement of the variable-volume container 1, the first extrusion member 21 and the second extrusion member 22 are respectively detachably connected to the variable-volume container 1.

[0048] Further, as shown in Figure 1 and Figure 3 In order to achieve the detachable connection between the first extrusion member 21 and the second extrusion member 22 and the variable-volume container 1, the liquid preparation auxiliary device 100 further comprises a plug-in member 4; at least two plug-in holes are formed in the first extrusion member 21 and the second extrusion member 22; the number of plug-in members 4 is the same as that of the plug-in holes and is arranged one-to-one, and the plug-in members 4 are fixedly connected to the outer wall of the variable-volume container 1; each plug-in member 4 is plugged into the plug-in hole.

[0049] Preferably, as shown in Figure 4As shown, in order to improve the connection stability of the variable volume container 1 and the plug-in part 4, the side of the variable volume container 1 is outwardly protruding and provided with a connecting block 11, the plug-in part 4 is fixedly connected with the connecting block 11 through a plug-in slot in the connecting block 11.

[0050] Further, as shown in Figure 3 and Figure 4 The plug-in part 4 includes a connecting part 41 and a limiting part 42, the connecting part 41 is fixedly connected with the variable volume container 1, the limiting part 42 penetrates the plug-in hole and abuts against the side of the first extrusion part 21 or the second extrusion part 22 away from the variable volume container 1, the side of the first extrusion part 21 and the second extrusion part 22 towards the variable volume container 1 forms an extrusion plane 20 for abutting with the variable volume container 1. So that when the variable volume container 1 is extruded, the extrusion plane 20 directly contacts and extrudes the variable volume container 1, thereby effectively increasing the area of extrusion contact and improving the extrusion efficiency; when the second extrusion part 22 moves away from the first extrusion part 21, the limiting part 42 abuts against the side of the first extrusion part 21 or the second extrusion part 22 away from the variable volume container 1, so that the movement of the second extrusion part 22 can drive the plug-in part 4 to guide the variable volume container 1 to restore to the original state.

[0051] Further, as shown in Figure 1 and Figure 2 In order to effectively control the volume of the variable volume container 1 and prevent excessive extrusion or pulling of the variable volume container 1, the liquid preparation auxiliary device 100 further includes a magnet assembly; the magnet assembly includes a movable magnet and a limiting electromagnet, the movable magnet is fixedly arranged on the second extrusion part 22, the limiting electromagnet is arranged on the limiting part 334, and when the connecting part 333 contacts the limiting part 334, the limiting electromagnet is started to lock the position of the second extrusion part 22, so that the second extrusion part 22 is locked through the interaction of the magnets to prevent further movement.

[0052] The working process of the utility model is as follows:

[0053] The variable volume container 1 is vertically placed, so that the second opening is located below and connected with the dry powder container containing A dry powder, and the liquid preparation auxiliary device 100 is arranged in the dialysis equipment together with the dry powder container; wherein the first extrusion part 21 and the mounting seat 32 are fixedly arranged in the dialysis equipment.

[0054] When the liquid preparation is performed, the variable volume container 1 is not extruded by the first extruding member 21 and the second extruding member 22, and the common volume of the variable volume container 1 and the dry powder container meets the volume required for the liquid preparation; the solvent for the liquid preparation enters the dry powder container from the lower end opening of the dry powder container, is discharged from the top opening of the dry powder container, and enters the variable volume container 1 through the second opening connected with the dry powder container, and the liquid preparation is completed; the solution flows back to the dry powder container from the second opening of the variable volume container 1, and is finally transported to the outside from the bottom opening of the dry powder container for subsequent use.

[0055] When the disinfection is performed, the driving motor 31 is started, the output shaft 312 rotates, and drives the driving gear 351 to rotate, and then drives the screw rod 331 to rotate through the transmission connection of the driving gear 351 and the driven gear 352, so that the connecting member 333 connected to the screw rod 331 moves linearly along the axial direction of the screw rod 331 under the guidance of the guide rod 332, and then drives the connecting rod 34 to move, so that the second extruding member 22 is driven by the connecting rod 34 to approach the first extruding member 21, and the variable volume container 1 is extruded, so that the variable volume container 1 is compressed to be smaller; and then the disinfectant is introduced into the variable volume container 1 to realize disinfection.

[0056] In summary, the embodiment of the utility model provides a liquid preparation auxiliary device 100, it includes variable volume container 1, extruding assembly 2 and drive assembly 3, and the variable volume container has a certain volume; when using, the variable volume container 1 is vertically arranged, so that the second opening is located below and is communicated with the dry powder container containing A dry powder, so that the volume of the device formed by the communication between the variable volume container 1 and the dry powder container can reach the volume required for liquid preparation; and the solvent for liquid preparation can enter the variable volume container 1 from the second opening, and flow out through the first opening of the variable volume container 1 to perform cyclic dissolution; when the disinfection is required after the liquid preparation is completed, since the variable volume container 1 is made of elastic material and is arranged between the first extruding member 21 and the second extruding member 22, the second extruding member 22 is driven by the drive assembly 3 to move relative to the first extruding member 21, so that the variable volume container 1 is extruded and the whole variable volume container 1 is compressed to be smaller, and the internal cavity is also correspondingly reduced, so that the purpose of saving the time and the amount of disinfectant required for disinfecting the variable volume container 1 and the container containing A dry powder is achieved.

[0057] The above only describes the preferred embodiments of the utility model, and it should be noted that for ordinary skilled persons in the technical field, without departing from the technical principles of the utility model, a plurality of improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the utility model.

Claims

1. A solution preparation auxiliary device, characterized in that, Includes variable displacement container, extrusion assembly, and drive assembly; The variable capacity container is made of an elastic material, and a first opening and a second opening are respectively opened at both ends of the variable capacity container; The extrusion assembly includes a first extruder and a second extruder, which are parallel and spaced apart, and the variable volume container is disposed between the first extruder and the second extruder; The output of the drive component is connected to the second extruder and can drive the second extruder to move relative to the first extruder to extrude or release the variable volume container.

2. The solution preparation auxiliary device as described in claim 1, characterized in that, The drive assembly includes a drive motor, a mounting base, a linear motion mechanism, and a connecting rod; The drive motor is mounted on the mounting base, and the mounting base has a mounting cavity. The linear motion mechanism is mounted in the mounting cavity and connected to the output end of the drive motor. One end of the connecting rod is connected to the second extruder, and the other end slides through the mounting base and is connected to the linear motion mechanism. The linear motion mechanism is used to drive the connecting rod to perform linear motion, thereby causing the second extruder to move closer to or away from the first extruder.

3. The solution preparation auxiliary device as described in claim 2, characterized in that, The linear motion mechanism includes a screw, a guide rod, and a connecting component; The screw and guide rod are both arranged parallel to the connecting rod; the screw is rotatably connected to the mounting base and fixedly connected to the output end of the drive motor, and the guide rod is fixedly connected to the mounting base; The connector is sleeved on the outer periphery of the screw and screwed to the screw, and the connector is slidably sleeved on the guide rod; The other end of the connecting rod is connected to the connector.

4. The solution preparation auxiliary device as described in claim 3, characterized in that, The linear motion mechanism also includes two limiting members; Two limiting members are fixedly sleeved on the guide rod at intervals, and the connecting member is located between the two limiting members; the two limiting members are used to limit the movement distance of the connecting member.

5. The solution preparation auxiliary device as described in claim 3, characterized in that, The drive assembly further includes a gear set, which includes a driving gear and a driven gear; The drive motor includes a housing and an output shaft; The mounting base has an extension on the side surface away from the second extruder, and the extension extends outward perpendicular to the axial direction of the screw; the housing is connected to the extension, and the output shaft is parallel to the screw; The driving gear is fixedly connected to the output shaft, the driven gear is fixedly connected to the screw, and the driving gear and the driven gear are connected in a transmission connection.

6. The solution preparation auxiliary device as described in claim 1, characterized in that, The first extrusion member and the second extrusion member are respectively connected to the variable volume container.

7. The solution preparation auxiliary device as described in claim 6, characterized in that, The first extrusion member and the second extrusion member are detachably connected to the variable volume container.

8. The solution preparation auxiliary device as described in claim 7, characterized in that, It also includes connectors; The first extruder and the second extruder are each provided with at least two insertion holes; the number of insertion pieces is the same as the number of insertion holes and they are arranged in a one-to-one correspondence; the insertion pieces are fixedly connected to the outer wall of the variable capacity container. Each of the aforementioned connectors is inserted into the corresponding connector hole.

9. The solution preparation auxiliary device as described in claim 8, characterized in that, The connector includes a connecting part and a limiting part. The connecting part is fixedly connected to the variable capacity container. The limiting part passes through the plug hole and abuts against the side of the first extruder or the second extruder facing away from the variable capacity container. The side of the first extruder and the second extruder facing the variable capacity container forms an extrusion plane for fitting with the variable capacity container.

10. The solution preparation auxiliary device as described in claim 4, characterized in that, It also includes a magnet assembly; The magnet assembly includes a movable magnet and a limiting electromagnet. The movable magnet is fixed on the second pressing member, and the limiting member is provided with the limiting electromagnet. When the connecting member contacts the limiting member, the limiting electromagnet is activated to lock the position of the second pressing member.

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