Liquid medicine concentration detection device

Abstract

The utility model belongs to the technical field of liquid medicine detection equipment, and relates to a liquid medicine concentration detection device which comprises a bottom plate, a medicine mixing box is fixedly connected to the bottom plate, a top cover is arranged at the top end of the medicine mixing box, a medicine adding opening is formed in the top cover, a driving motor is fixedly connected to the top end of the top cover, and the driving motor is connected with a rotating shaft. A mixing mechanism is arranged at the end, close to the driving motor, of the rotating shaft, a cavity is formed in the rotating shaft, a medicine inlet is formed in the side wall of the rotating shaft, an opening and closing mechanism is arranged in the medicine inlet, the bottom of the rotating shaft is connected with a medicine outlet pipe communicated with the cavity through a rotating joint, the medicine outlet pipe is connected with a sampling mechanism, and the outer end of the sampling mechanism is connected with a detection mechanism; the medicine inlet is formed in the rotating shaft, and the opening and closing structure is arranged in the medicine inlet to seal and open the medicine inlet, so that medicine liquid at different positions can independently enter the cavity and is sampled through the sampling mechanism, and the detection accuracy is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid medicine detection equipment, and particularly relates to a liquid medicine concentration detection device. Background Art

[0002] In the existing pharmaceutical technology, the quality of the mixing uniformity directly affects the efficacy of the finished medicine. At present, the general method for detecting the mixing of drug mixtures is to extract samples from different parts in the mixing tank for laboratory chemical analysis of the concentration. If the concentration uniformity value is within the specified range of the set value, it is considered that the mixing is uniform.

[0003] There is a disclosed drug concentration detection device with the publication number CN208621505U. By opening a plurality of liquid inlet ports on the hollow tube, the liquid medicine in the mixing tank can enter the liquid storage tank and be sampled and detected through the L-shaped diversion tube. However, in actual use, the liquid medicines at different positions will enter through the liquid inlet ports together and will be remixed in the liquid storage tank, resulting in the sample liquid medicine not being able to represent the concentration at a specific position, which is no different from directly sampling from the mixing tank, thus affecting the detection accuracy. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a liquid medicine concentration detection device, which solves the problem that in the actual use of a drug concentration detection device with the publication number CN208621505U mentioned in the above background art, the liquid medicines at different positions will enter through the liquid inlet ports together and will be remixed in the liquid storage tank, resulting in the sample liquid medicine not being able to represent the concentration at a specific position, which is no different from directly sampling from the mixing tank, thus affecting the detection accuracy.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is a liquid medicine concentration detection device, which includes a bottom plate. A mixing tank is fixedly connected to the bottom plate. A top cover is arranged at the top of the mixing tank. A medicine adding port is opened on one side of the upper end of the top cover. A driving motor is fixedly connected to the top of the top cover. The output shaft of the driving motor passes through an avoidance hole opened on the top cover and enters the mixing tank, and is connected with a rotating shaft through a coupling. A mixing mechanism is arranged at one end of the rotating shaft close to the driving motor. A cavity is opened inside the rotating shaft. A plurality of liquid inlet ports communicating with the cavity are opened on the side wall of the rotating shaft from top to bottom. An opening and closing mechanism is arranged in the liquid inlet ports. The opening and closing mechanism includes an installation groove opened on the inner wall of the upper end of the liquid inlet port. An electric telescopic rod is fixedly connected in the installation groove. The lower end of the electric telescopic rod is fixedly connected with a sealing plate matched with the liquid inlet port. A groove matched with the sealing plate is opened on the inner wall of the upper end of the liquid inlet port. The bottom of the rotating shaft is connected with a liquid outlet pipe communicating with the cavity through a rotary joint. The liquid outlet pipe is connected with a sampling mechanism. The outer end of the sampling mechanism is connected with a detection mechanism.

[0006] As a preferred solution, the mixing mechanism includes cross bars fixedly connected to both sides of the rotating shaft, and stirring rods are fixedly connected to the lower sides of both ends of the cross bars.

[0007] As a preferred solution, the mixing mechanism includes mixing blades, and multiple mixing blades are fixedly connected to the outer surface of the stirring rod in a staggered manner.

[0008] As a preferred solution, there are two groups of the mixing mechanisms, and the two groups of mixing mechanisms are arranged perpendicular to each other at 90°.

[0009] As a preferred solution, both sides of the sealing plate are slidably connected to the medicine inlet, and when the sealing plate closes the medicine inlet, its upper end is still inside the groove.

[0010] As a preferred solution, guide blocks are fixedly connected to the inner walls of both sides of the groove and the installation groove, and guide grooves slidably connected to the guide blocks are formed on both sides of the sealing plate.

[0011] As a preferred solution, a waterproof layer is provided between both sides of the sealing plate and the medicine inlet.

[0012] As a preferred solution, the sampling mechanism includes a sampling pipe connected to the medicine outlet pipe, the other end of the sampling pipe passes through the medicine mixing tank and is connected to the detection mechanism, and a pump body fixedly connected to the bottom plate is provided on the sampling pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model include:

[0014] By providing a medicine inlet on the rotating shaft and arranging an opening and closing structure in the medicine inlet to close and open the medicine inlet, the present utility model can enable the liquid medicine at different positions to enter the chamber separately and be sampled by the sampling mechanism, avoiding affecting the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 is a schematic diagram of the opening and closing structure of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] It is easy to understand that according to the technical solution of the present utility model, without changing the essence of the present utility model, those of ordinary skill in the art can propose various replaceable structural forms and implementation manners. Therefore, the following detailed description and the accompanying drawings are only exemplary descriptions of the technical solution of the present utility model, and should not be regarded as the whole of the present utility model or as a limitation or restriction on the technical solution of the present utility model.

[0018] The following will be combined with the specification appendix Figure 1-2The above technical solutions will be described in detail with specific implementation manners:

[0019] A liquid medicine concentration detection device provided by the utility model includes a bottom plate 1. A mixing box 2 is fixedly connected to the bottom plate 1. A top cover 3 is arranged at the top end of the mixing box 2. A medicine adding port 4 is opened on one side of the upper end of the top cover 3. A driving motor 5 is fixedly connected to the top end of the top cover 3. The output shaft of the driving motor 5 passes through an avoidance hole opened on the top cover 3 and enters the mixing box 2, and is connected with a rotating shaft 6 through a coupling. A mixing mechanism is arranged at one end of the rotating shaft 6 close to the driving motor 5. A chamber 7 is opened inside the rotating shaft 6. A plurality of medicine inlet ports 8 communicating with the chamber 7 are opened on the side wall of the rotating shaft 6 from top to bottom. An opening and closing mechanism is arranged in the medicine inlet port 8. The opening and closing mechanism includes an installation groove 9 opened on the inner wall of the upper end of the medicine inlet port 8. An electric telescopic rod 10 is fixedly connected in the installation groove 9. As a preference, the power supply mode of the electric telescopic rod 10 is rechargeable, and its control mode is wireless control. The staff can control it through a controller; the lower end of the electric telescopic rod 10 is fixedly connected with a sealing plate 11 matching the medicine inlet port 8. A groove 12 matching the sealing plate 11 is opened on the inner wall of the upper end of the medicine inlet port 8; as a preferred embodiment, both sides of the sealing plate 11 are slidably connected with the medicine inlet port 8, and when the sealing plate 11 closes the medicine inlet port 8, its upper end is still in the groove 12, playing a certain sealing role; the bottom of the rotating shaft 6 is connected with a medicine outlet pipe 13 communicating with the chamber 7 through a rotary joint. The medicine outlet pipe 13 is connected with a sampling mechanism, and the outer end of the sampling mechanism is connected with a detection mechanism 14. As a preference, a one-way valve is arranged on the medicine outlet pipe.

[0020] A variety of liquid medicines are added into the mixing box 2 through the medicine adding port 4. Then the driving motor 5 is started to drive the rotating shaft 6 to rotate, so that the mixing mechanism can mix and stir the liquid medicine in the mixing box 2. After mixing for a certain time, the electric telescopic rod 10 retracts upwards. As a preference, the initial state of the electric telescopic rod 10 is in the extended state. At this time, the sealing plate 11 can close the medicine inlet port 8 to prevent the liquid medicine from entering the chamber 7 through the medicine inlet port 8. As the electric telescopic rod 10 retracts, there is a gap between the lower end of the sealing plate 11 and the medicine inlet port 8. As the rotating shaft 6 rotates, the liquid medicine in the mixing box 2 will enter the chamber 7 through the gap. Then the sampling mechanism takes out the liquid medicine in the chamber 7 through the medicine outlet pipe 13 and detects it through the detection mechanism 14. When the detected liquid medicine concentration meets the standard, the driving motor 5 stops working. If it does not meet the standard, the driving motor 5 continues to work; as a preference, by controlling the working of the opening and closing mechanisms in the grooves 12 at different positions, the liquid medicine in different areas of the mixing box 2 can enter the chamber 7, so as to detect the liquid medicine concentration in different areas, and multiple samplings are carried out to ensure the accuracy of the detection;

[0021] Preferably, the detection mechanism 14 for detecting the concentration of the liquid medicine is a relatively mature existing technology, such as the spectroscopic method, etc., so it will not be elaborated here.

[0022] Preferably, a maintenance opening can be provided at the corresponding position of the rotating shaft 6 and the installation groove 9. A cover plate is provided at the maintenance opening and waterproof measures such as waterproof tape are taken. When it is necessary to charge or maintain the electric telescopic rod 10, remove the top cover 3 to take out the rotating shaft 6, and then perform maintenance through the maintenance opening.

[0023] As a preferred embodiment, the mixing mechanism includes cross bars 15 fixedly connected to both sides of the rotating shaft 6, and stirring rods 16 are fixedly connected to the lower sides of both ends of the cross bars 15. When the driving motor 5 works to drive the rotating shaft 6 to rotate, it will drive the cross bars 15 to rotate, and then drive the stirring rods 16 to rotate and mix and stir the liquid medicine.

[0024] To improve the stirring effect, as a preferred embodiment, the mixing mechanism includes stirring blades 17. There are multiple stirring blades 17 and they are fixedly connected to the outer surface of the stirring rod 16 in a staggered manner.

[0025] To further enhance the stirring effect, as a preferred embodiment, there are two groups of mixing mechanisms, and the two groups of mixing mechanisms are arranged perpendicular to each other at 90°.

[0026] To improve the sealing performance between the sealing plate 11 and the medicine inlet 8, as a preferred embodiment, guide blocks 18 are fixedly connected to the inner walls of both sides of the groove 12 and the installation groove 9, and guide grooves 19 that are slidably connected to the guide blocks 18 are provided on both sides of the sealing plate 11.

[0027] To further enhance the sealing performance, as a preferred embodiment, a waterproof layer is provided between both sides of the sealing plate 11 and the medicine inlet 8. The waterproof layer is preferably a corrosion-resistant rubber layer.

[0028] As a preferred embodiment, the sampling mechanism includes a sampling tube 20 connected to the medicine outlet pipe 13. The other end of the sampling tube 20 passes through the mixing tank 2 and is connected to the detection mechanism 14. A pump body 21 fixedly connected to the bottom plate 1 is provided on the sampling tube 20. After the liquid medicine in the chamber 7 reaches a certain amount, the pump body 21 starts to work, and the liquid medicine is pumped out by the pump body 21 through the medicine outlet pipe 13 and the sampling tube 20 and sent to the detection mechanism 14 for detection. Preferably, the bottom of the chamber 7 is inclined towards the direction of the medicine outlet pipe 13 to prevent liquid medicine from remaining in the chamber 7 and affecting the detection result of the next sampling.

[0029] The above-mentioned driving motor and pump body are mature existing technologies, so their principles and structures will not be elaborated here. The models and specifications of the motor and pump body can be selected according to the actual situation.

[0030] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art, and will not be elaborated herein. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0031] The technical scope of the present utility model is not limited to the content in the above description only. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present utility model, and these deformations and modifications should all fall within the protection scope of the present utility model.

Claims

1. A liquid medicine concentration detection device, comprising a bottom plate (1), a medicine mixing tank (2) fixedly connected to the bottom plate (1), and a top cover (3) arranged on the top of the medicine mixing tank (2), characterized in that, One side of the upper end of the top cover (3) is provided with a medicine adding port (4). A driving motor (5) is fixedly connected to the top of the top cover (3). The output shaft of the driving motor (5) passes through an avoidance hole opened in the top cover (3) and enters the mixing tank (2), and is connected with a rotating shaft (6) through a coupling. A mixing mechanism is arranged at one end of the rotating shaft (6) close to the driving motor (5). A chamber (7) is opened inside the rotating shaft (6). A plurality of medicine inlet ports (8) communicating with the chamber (7) are opened on the side wall of the rotating shaft (6) from top to bottom. An opening and closing mechanism is arranged in the medicine inlet port (8). The opening and closing mechanism includes an installation groove (9) opened on the inner wall of the upper end of the medicine inlet port (8). An electric telescopic rod (10) is fixedly connected in the installation groove (9). A sealing plate (11) matched with the medicine inlet port (8) is fixedly connected to the lower end of the electric telescopic rod (10). A groove (12) matched with the sealing plate (11) is opened on the inner wall of the upper end of the medicine inlet port (8). The bottom of the rotating shaft (6) is connected with a medicine outlet pipe (13) communicating with the chamber (7) through a rotary joint. The medicine outlet pipe (13) is connected with a sampling mechanism. The outer end of the sampling mechanism is connected with a detection mechanism (14).

2. The liquid medicine concentration detection device according to claim 1, characterized in that The mixing mechanism includes cross bars (15) fixedly connected to both sides of the rotating shaft (6). Stirring rods (16) are fixedly connected to the lower sides of both ends of the cross bars (15).

3. The liquid medicine concentration detection device according to claim 2, characterized in that, The mixing mechanism includes stirring blades (17). A plurality of the stirring blades (17) are staggeredly and fixedly connected to the outer surface of the stirring rods (16).

4. The liquid medicine concentration detection device according to claim 2, characterized in that, There are two groups of the mixing mechanisms, and the two groups of mixing mechanisms are arranged perpendicular to each other at an angle of (90)°.

5. An apparatus for detecting the concentration of a liquid medicine according to claim 1, wherein, Both sides of the sealing plate (11) are slidably connected to the medicine inlet port (8). When the sealing plate (11) closes the medicine inlet port (8), its upper end is still inside the groove (12).

6. The liquid medicine concentration detection device according to claim 1, characterized in that Guide blocks (18) are fixedly connected to the inner walls of both sides of the groove (12) and the installation groove (9). Guide grooves (19) slidably connected to the guide blocks (18) are opened on both sides of the sealing plate (11).

7. The liquid medicine concentration detection device according to claim 1, wherein, A waterproof layer is arranged between both sides of the sealing plate (11) and the medicine inlet port (8).

8. An apparatus for detecting the concentration of a liquid medicine according to claim 1, characterized in that, The sampling mechanism includes a sampling pipe (20) connected to the medicine outlet pipe (13). The other end of the sampling pipe (20) passes through the mixing tank (2) and is connected with the detection mechanism (14). A pump body (21) fixedly connected to the bottom plate (1) is arranged on the sampling pipe (20).

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