Liquid medicine filling machine

Abstract

The utility model discloses a liquid medicine filling machine, which relates to the technical field of liquid medicine filling, and comprises a first liquid storage tank, the bottom of the first liquid storage tank is fixedly communicated with a filling pipe in an annular shape, the peripheral side of the bottom of the filling pipe is fixedly connected with a connecting device, the connecting device comprises a sealing plug, the top end of the sealing plug is provided with a return pipe, and the top end of the return pipe is provided with a liquid outlet. The bottom end of the backflow pipe penetrates through the sealing plug and is in sliding connection with the sealing plug, a liquid level sensor is arranged on the top of the first liquid storage tank, and the bottom end of the liquid level sensor is inserted into the first liquid storage tank. According to the liquid medicine filling machine, due to the fact that the backflow pipe is arranged in the filling process, the filling quantity of liquid medicine is larger than the specified quantity in the filling process, under the action of the backflow pipe, redundant liquid medicine can be discharged through the backflow pipe under the action of pressure in the filling process, and therefore the filling quantity of the liquid medicine is guaranteed; and the filling quantity is not too low.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid medicine filling, in particular to a liquid medicine filling machine. Background Art

[0002] The filling volume control principle of the existing filling machine for large-volume injections is: set the liquid level of the liquid storage tank to be controlled within the specified range, and set the delay time of the filling pneumatic valve to control the filling volume of the liquid;

[0003] During the continuous filling process, since there is no subsequent replenishment of liquid in the liquid storage tank, the liquid level in the liquid storage tank gradually decreases. At this time, the original filling pneumatic valve opens and delays the closing time. Due to the decrease in the liquid level in the liquid storage tank, the filling volume will be low and may be lower than the qualified standard, resulting in unqualified filling and waste of liquid medicine. Utility Model Content

[0004] The purpose of the utility model is to provide a medicine liquid filling machine to solve the problem raised in the above-mentioned background technology that during the continuous filling process, due to the lack of subsequent medicine liquid replenishment in the liquid storage tank, the liquid level in the liquid storage tank gradually decreases. At this time, the original filling pneumatic valve is opened and the closing time is delayed. Due to the decrease in the liquid level in the liquid storage tank, the filling volume will be low and may be lower than the qualified standard, thereby making the filling unqualified and causing waste of medicine liquid.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a medicine liquid filling machine, comprising a first liquid storage tank, the bottom of the first liquid storage tank is annularly fixedly connected to a filling tube, the peripheral side of the bottom of the filling tube is fixedly connected to a connecting device, the connecting device comprises a sealing plug, a reflux pipe is arranged at the top of the sealing plug, the bottom end of the reflux pipe passes through the sealing plug and is slidably connected to the sealing plug, a liquid level sensor is arranged on the top of the first liquid storage tank, and the bottom end of the liquid level sensor is plugged into the first liquid storage tank.

[0006] Preferably, a second liquid storage tank is fixedly connected above the first liquid storage tank, a connecting pipe is fixedly connected between the first liquid storage tank and the second liquid storage tank, and the top end of the reflux pipe is fixedly connected to the peripheral side of the second liquid storage tank.

[0007] Preferably, a stop valve is fixedly installed on the peripheral side of the connecting pipeline, and a flow rate sensor is fixedly connected to the inside of the return pipe.

[0008] Preferably, the sealing plug is provided with a through hole matching the reflux pipe, the inner wall of the through hole is slidably provided with a rubber ring, the rubber ring is sleeved on the peripheral side of the reflux pipe and fits tightly therewith, and the peripheral side of the rubber ring is sealed with the through hole.

[0009] Preferably, a flow guide pipe is fixedly connected to the peripheral side of the first liquid storage tank, and a filling pneumatic valve is fixedly installed on the peripheral side of the filling pipe.

[0010] Compared with the prior art, the beneficial effect of the utility model is that the medicine liquid filling machine is provided with a reflux pipe during filling. During the filling process, the filling amount of the medicine liquid is greater than the specified amount. Under the action of the reflux pipe, during the filling process, the excess medicine liquid will be discharged through the reflux pipe under pressure, thereby ensuring the filling amount of the medicine liquid and preventing the filling amount from being too low. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0013] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0014] Figure 4 This is a schematic diagram of the filling tube structure of the utility model;

[0015] Figure 5 This is a schematic diagram of the structure of the connecting device of the utility model.

[0016] In the figure: 1. first liquid storage tank; 11. flow guide tube; 2. liquid level sensor; 3. filling tube; 31. filling pneumatic valve; 4. second liquid storage tank; 5. connecting pipeline; 51. stop valve; 6. return pipe; 7. flow rate sensor; 8. connecting device; 81. sealing plug; 82. rubber ring. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-5The utility model provides a technical solution: a medicine liquid filling machine, including a first liquid storage tank 1, the bottom of the first liquid storage tank 1 is annularly fixedly connected with a filling tube 3, the peripheral side of the bottom of the filling tube 3 is fixedly connected with a connecting device 8, the connecting device 8 includes a sealing plug 81, the top of the sealing plug 81 is provided with a reflux pipe 6, the bottom end of the reflux pipe 6 passes through the sealing plug 81 and is slidably connected with the sealing plug 81, the top of the first liquid storage tank 1 is provided with a liquid level sensor 2, and the bottom end of the liquid level sensor 2 is plugged into the first liquid storage tank 1.

[0019] Specifically, the first liquid storage tank 1 stores the medicine liquid, which is filled into the medicine bottle through the filling tube 3. The connecting device 8 connects the bottle mouth of the medicine bottle. The height of the bottom end of the reflux pipe 6 is lower than the height of the filling tube 3, so that during filling, excess medicine liquid will be discharged through the reflux pipe 6 to avoid excessive amount of medicine liquid in the medicine bottle. During filling, the filling amount is greater than the normally required amount. The liquid level sensor 2 monitors the liquid level in the first liquid storage tank 1 to prevent the liquid level from being too low.

[0020] A second liquid storage tank 4 is fixedly connected above the first liquid storage tank 1 , a connecting pipe 5 is fixedly connected between the first liquid storage tank 1 and the second liquid storage tank 4 , and a top end of a reflux pipe 6 is fixedly connected to a peripheral side of the second liquid storage tank 4 .

[0021] Specifically, the second liquid storage tank 4 stores the discharged liquid medicine, and then discharges it into the first liquid storage tank 1 again for filling and use.

[0022] A stop valve 51 is fixedly installed on the peripheral side of the connecting pipe 5 , and a flow rate sensor 7 is fixedly connected to the inside of the return pipe 6 .

[0023] Specifically, the flow rate sensor 7 monitors the reflux pipe 6, and when liquid flow is detected, the filling action can be stopped.

[0024] The sealing plug 81 is provided with a through hole matching the reflux pipe 6 , and a rubber ring 82 is slidably provided on the inner wall of the through hole. The rubber ring 82 is sleeved on the peripheral side of the reflux pipe 6 and fits tightly therewith, and the peripheral side of the rubber ring 82 is sealed with the through hole.

[0025] Specifically, the sealing plug 81 is sealed with the bottle mouth, and the rubber ring 82 slides up and down to adjust the height of the bottom of the reflux pipe 6, thereby controlling the amount of filling in the medicine bottle.

[0026] A flow guide pipe 11 is fixedly connected to the peripheral side of the first liquid storage tank 1 , and a filling pneumatic valve 31 is fixedly installed to the peripheral side of the filling pipe 3 .

[0027] Specifically, the guide tube 11 guides the liquid medicine into the first liquid storage tank 1, and the filling pneumatic valve 31 opens and closes the filling tube 3 to control the opening and closing of the filling.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid medicine filling machine, characterized in that: It comprises a first liquid storage tank (1); The bottom of the first liquid storage tank (1) is annularly fixedly connected to a filling pipe (3), and the peripheral side of the bottom of the filling pipe (3) is fixedly connected to a connecting device (8); The connecting device (8) comprises a sealing plug (81), and a return pipe (6) is arranged at the top end of the sealing plug (81); The bottom end of the reflux pipe (6) passes through the sealing plug (81) and is slidably connected to the sealing plug (81); A liquid level sensor (2) is arranged on the top of the first liquid storage tank (1), and the bottom end of the liquid level sensor (2) is inserted into the first liquid storage tank (1).

2. A liquid medicine filling machine according to claim 1, characterized in that: A second liquid storage tank (4) is fixedly connected above the first liquid storage tank (1), a connecting pipe (5) is fixedly connected between the first liquid storage tank (1) and the second liquid storage tank (4), and the top end of the reflux pipe (6) is fixedly connected to the peripheral side of the second liquid storage tank (4).

3. A liquid medicine filling machine according to claim 2, characterized in that: A stop valve (51) is fixedly installed on the peripheral side of the connecting pipe (5), and a flow rate sensor (7) is fixedly connected inside the return pipe (6).

4. The liquid medicine filling machine according to claim 1, characterized in that: The sealing plug (81) is provided with a through hole matching the return pipe (6), and a rubber ring (82) is slidably provided on the inner wall of the through hole. The rubber ring (82) is sleeved on the peripheral side of the return pipe (6) and fits tightly therewith, and the peripheral side of the rubber ring (82) is sealed with the through hole.

5. The liquid medicine filling machine according to claim 1, characterized in that: A flow guide pipe (11) is fixedly connected to the peripheral side of the first liquid storage tank (1), and a filling pneumatic valve (31) is fixedly installed to the peripheral side of the filling pipe (3).

Images