Buffer tank for pharmacy

Abstract

The pharmaceutical buffer tank comprises a tank body, a cavity used for containing liquid medicine is formed in the tank body, a medicine inlet communicated with the cavity is formed in the top of the tank body, and a medicine outlet communicated with the cavity is formed in the bottom of the tank body; the pressure regulating box is fixedly arranged on the side wall of the tank body and communicates with the cavity, and an air inlet and an air outlet are formed in the side wall of the pressure regulating box; the sliding block is arranged at the communication position of the tank body and the pressure regulating box in a sealed mode and arranged in the pressure regulating box in a sliding mode along with air pressure changes, and the size of the interior of the pressure regulating box is larger than that of the sliding block. The first sliding plate is arranged in the pressure regulating box in a sliding mode and fixedly connected with the sliding block. The second sliding plate is arranged in the pressure regulating box in a sliding mode and synchronously and reversely slides with the first sliding plate, the air inlet and the air outlet are formed in the two ends of the second sliding plate respectively, the second sliding plate covers the air inlet and the air outlet, and the air inlet or the air outlet is opened along with air pressure changes. The other end is connected with the second sliding plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of pharmaceutical equipment, especially a kind of buffer tank for pharmacy. BACKGROUND

[0002] In the pharmaceutical process, the storage, delivery and pressure regulation of liquid medicine are crucial. Traditional buffer tanks are often single-function, which cannot meet the requirements of pharmaceutical process on liquid medicine pressure regulation, uniform mixing and temperature control. For example, the stability of subsequent delivery of liquid medicine (especially microspheres and other suspensions) may be affected by pressure fluctuations in the buffer tank, and there is a lack of effective stirring and temperature control measures, which can easily lead to uneven composition of liquid medicine, deterioration and other problems. In addition, the pressure in the traditional buffer tank needs to be manually adjusted, which is complicated to operate. Even if a regulating valve is installed, it is difficult for the valve to automatically regulate both air intake and exhaust, and the valve is prone to damage, which will affect subsequent work if the valve is damaged. Therefore, there is an urgent need for an improved buffer tank for pharmacy to solve these problems. SUMMARY

[0003] The main purpose of the utility model is to provide a buffer tank for pharmacy to solve the problem of manual adjustment of pressure in the buffer tank and complicated operation.

[0004] To solve the above technical problems, the technical scheme adopted by the utility model is as follows:

[0005] A buffer tank for pharmacy, comprising:

[0006] A tank body is provided with a cavity for holding liquid medicine inside, an inlet for liquid medicine is provided on the top of the tank body and communicates with the cavity, and an outlet for liquid medicine is provided on the bottom of the tank body and communicates with the cavity;

[0007] A pressure regulating box is fixedly arranged on the side wall of the tank body and communicates with the cavity, and an air inlet and an air outlet are formed in the side wall of the pressure regulating box;

[0008] A sliding block is arranged at the communication between the tank body and the pressure regulating box, and slides in the pressure regulating box as the air pressure changes, and the size of the inside of the pressure regulating box is larger than the size of the sliding block;

[0009] A first sliding plate is slidably arranged in the pressure regulating box and fixedly connected with the sliding block;

[0010] A second sliding plate is slidably arranged in the pressure regulating box and synchronously and reversely slidably arranged with the first sliding plate, the air inlet and the air outlet are respectively located at both ends of the second sliding plate, the second sliding plate covers the air inlet and the air outlet, and opens the air inlet or the air outlet as the air pressure changes;

[0011] A reset spring is arranged in the pressure regulating box, and one end of the reset spring is connected with the sliding block, and the other end of the reset spring is connected with the second sliding plate.

[0012] As a further technical solution, a gear is arranged in the pressure regulating box, a first gear rack is fixedly arranged on the end of the first sliding plate away from the sliding block, a second gear rack is fixedly arranged on the end of the second sliding plate away from the sliding block, and the first gear rack and the second gear rack are engaged with the gear.

[0013] As a further technical solution, the second sliding plate is an L-shaped plate, and a side wall of one end of the second sliding plate is fixedly connected with the reset spring, and a side wall of the other end of the second sliding plate is fixedly connected with the second gear rack.

[0014] As a further technical solution, one end of the rotating shaft of the gear extends out of the pressure regulating box and is fixedly connected with a handle.

[0015] As a further technical solution, a stirring device is arranged on the tank body, and the stirring device comprises:

[0016] A motor reducer is fixedly arranged on the top of the tank body.

[0017] A stirring shaft is rotatably arranged in the cavity and extends out of the tank body at the top and is fixedly connected with the output shaft of the motor reducer.

[0018] A plurality of stirring blades are fixedly arranged on the stirring shaft along the axial direction of the stirring shaft.

[0019] As a further technical solution, an outer side of the tank body is covered with a cladding layer, a cladding layer is formed between the outer wall of the tank body and the cladding layer, a liquid outlet is arranged at the top of the cladding layer, and a liquid inlet is arranged at the bottom of the cladding layer.

[0020] As a further technical solution, a cover is arranged on the sealing cover of the medicine inlet, and a valve is arranged on the medicine outlet.

[0021] As a further technical solution, a liquid level meter, a pressure gauge and a temperature sensor are arranged on the tank body.

[0022] The beneficial effects of the present application are as follows:

[0023] 1. Precise pressure regulation: through the unique pressure regulating box structure, the linkage of the slider, the first sliding plate, the second sliding plate, the gear, the first rack and the second rack, and the cooperation of the air inlet and the air outlet, the automatic precise adjustment according to the pressure change in the tank can be realized, the structure is simple and ingenious, the air inlet and the air outlet are realized at the same time through the pressure regulating box structure, and the pressure regulating box structure is not easy to be damaged; in addition, the pressure regulating box structure can also be manually intervened through the handle, so that the storage and transportation of the liquid medicine under the stable pressure environment are effectively ensured.

[0024] 2. Uniform mixing: the setting of the stirring device ensures uniform mixing of the liquid medicine components and prevents drug settlement, avoids the influence of uneven components on the quality of the medicine, and improves the stability of the pharmaceutical process and the consistency of the quality of the medicine.

[0025] 3. Effective temperature control: the cladding layer and the sandwich structure, in combination with the liquid inlet and the liquid outlet, and the temperature sensor feedback control, can accurately adjust the temperature of the liquid medicine in the tank, prevent the liquid medicine from deteriorating due to temperature fluctuations, prolong the shelf life of the liquid medicine, and improve the pharmaceutical efficiency.

[0026] 4. Real-time monitoring: the liquid level meter, the pressure gauge and the temperature sensor are equipped, so that the operator can master the key parameters of the liquid medicine in the tank in real time, and the equipment running state can be adjusted in time, so that the safety and efficiency of the pharmaceutical process are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0027] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0028] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0029] Figure 2 It is a sectional structure schematic diagram of the utility model in a sealed state;

[0030] Figure 3 It is a sectional structure schematic diagram of the utility model when the pressure in the tank becomes small;

[0031] Figure 4 It is a sectional structure schematic diagram of the utility model when the pressure in the tank becomes large;

[0032] Figure 5 It is Figure 2 The enlarged structure schematic diagram of part A of the utility model.

[0033] EXPLANATION OF REFERENCE NUMBERS

[0034] 1. Tank body; 2. Inlet; 3. Outlet; 4. Pressure regulating box; 5. Air inlet; 6. Air outlet; 7. Sliding block; 8. First sliding plate; 9. Second sliding plate; 10. Return spring; 11. Gear; 12. First rack; 13. Second rack; 14. Handle; 15. Stirring device; 151. Motor reducer; 152. Stirring shaft; 153. Stirring blade; 16. Coating layer; 17. Jacket; 18. Liquid inlet; 19. Liquid outlet; 20. Cover; 21. Valve. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] like Figures 1-5 As shown, this utility model proposes a pharmaceutical buffer tank, which mainly includes a tank body 1, a pressure regulating box 4, a slider 7, a first sliding plate 8, a second sliding plate 9, and a return spring 10.

[0037] The tank body 1 is made of stainless steel to prevent corrosion from the medicinal liquid. The tank body 1 has an internal cavity for holding the medicinal liquid. An inlet 2, communicating with the cavity, is located at the top of the tank body 1 for easy liquid injection. A sealing cap 20 is provided on the inlet 2 to prevent impurities from entering. An outlet 3, communicating with the cavity, is located at the bottom of the tank body 1 for liquid discharge. A valve 21 is provided at the outlet 3 to control the flow of the medicinal liquid. A covering layer 16 is provided on the outside of the tank body 1, forming a sandwich layer 17 between the outer wall of the tank body 1 and the covering layer 16. An outlet 19 is connected to the top of the sandwich layer 17, and an inlet 18 is connected to the bottom of the sandwich layer 17. By injecting or discharging temperature-controlled liquid into the sandwich layer 17, the temperature of the medicinal liquid inside the tank body 1 can be precisely adjusted, providing a suitable temperature environment for the medicinal liquid. The tank 1 is equipped with a level gauge, a pressure gauge, and a temperature sensor. The level gauge can monitor the liquid level in the tank 1 in real time, the pressure gauge is used to display the pressure in the tank 1, and the temperature sensor can accurately reflect the temperature of the liquid. Operators can adjust the equipment operating parameters in a timely manner based on these data.

[0038] The pressure regulating box 4 is fixedly arranged on the side wall of the tank body 1 and communicates with the cavity, the side wall of the pressure regulating box 4 is provided with an air inlet 5 and an air outlet 6, a sliding block 7 is arranged at the communication position of the tank body 1 and the pressure regulating box 4 and is slidably arranged in the pressure regulating box 4 with the change of air pressure, the size of the inside of the pressure regulating box 4 is greater than the size of the sliding block 7, which is beneficial to the communication between the inside of the pressure regulating box 4 and the inside of the tank body 1 after the sliding block 7 slides into the pressure regulating box 4, a first sliding plate 8 is slidably arranged in the pressure regulating box 4 and is fixedly connected with the sliding block 7, a second sliding plate 9 is an L-shaped plate, the second sliding plate 9 is slidably arranged in the pressure regulating box 4 and is synchronously and reversely slidably arranged with the first sliding plate 8, specifically, a gear 11 is rotatably arranged in the pressure regulating box 4, the end of the first sliding plate 8 away from the sliding block 7 is fixedly provided with a first gear rack 12, the end of the second sliding plate 9 away from the sliding block 7 is fixedly provided with a second gear rack 13, the first gear rack 12 and the second gear rack 13 are engaged with the gear 11, and the gear 11 gear structure makes the synchronous and reverse movement of the first sliding plate 8 and the second sliding plate 9 more accurate and stable; the air inlet 5 and the air outlet 6 are located at two ends of the second sliding plate 9, the second sliding plate 9 covers the air inlet 5 and the air outlet 6 and opens the air inlet 5 or the air outlet 6 with the change of air pressure, a reset spring 10 is arranged in the pressure regulating box 4 and has one end fixedly connected with the sliding block 7 and the other end fixedly connected with the side wall of the other end of the second sliding plate 9, so that the sliding block 7, the first sliding plate 8 and the second sliding plate 9 can be reset after the air pressure is stable. In the embodiment, one end of the rotating shaft of the gear 11 extends out of the pressure regulating box 4 and is fixedly connected with a handle 14. When necessary, the operator can manually intervene in the pressure regulating process by rotating the handle 14, so that automatic and manual conversion can be realized, and the problem that the subsequent work is affected due to the sudden damage of the valve body can be avoided.

[0039] The tank body 1 is also provided with a stirring device 15, the stirring device 15 comprises a motor reducer 151, a stirring shaft 152 and stirring blades 153, the motor reducer 151 is fixedly arranged on the top of the tank body 1, the stirring shaft 152 is rotatably arranged in the cavity and extends out of the tank body 1 and is fixedly connected with the output shaft of the motor reducer 151, the stirring blades 153 are a plurality of groups and are fixedly arranged on the stirring shaft 152 in the axial direction of the stirring shaft 152. When the motor reducer 151 is started, the motor reducer 151 drives the stirring shaft 152 to rotate, and the stirring shaft 152 drives the stirring blades 153 to rotate, so that the liquid medicine in the tank body 1 can be fully stirred, the uniform mixing of the components of the liquid medicine is ensured, and the medicine settlement is avoided.

[0040] The use process of the embodiment is as follows: the cover 20 of the medicine inlet 2 is opened, the liquid medicine is injected into the cavity in the tank body 1 through the medicine inlet 2, and the liquid level is monitored in real time through the liquid level meter, and when the required liquid level is reached, the cover 20 is closed.

[0041] During the injection, preparation or delivery of the liquid medicine, the air pressure in the tank body 1 can change. When the air pressure rises, Figure 4As shown, the gas pushes the sliding block 7 to slide away from the tank body 1, the sliding block 7 drives the first sliding plate 8 to slide away from the tank body 1, the first sliding plate 8 drives the second sliding plate 9 to slide reversely through the cooperation of the first rack 12, the gear 11 and the second rack 13, so that the second sliding plate 9 is separated from the cover of the gas outlet 6 to open the gas outlet 6 and discharge the excess gas, at this time, the return spring 10 is compressed, after the gas pressure on both sides is consistent, the sliding block 7 is reset under the pushing force of the return spring 10; when the gas pressure is reduced, the opposite is true, for example Figure 3 As shown, the sliding block 7 slides towards the tank body 1, the sliding block 7 drives the first sliding plate 8 to slide towards the tank body 1, the first sliding plate 8 drives the second sliding plate 9 to slide reversely through the cooperation of the first rack 12, the gear 11 and the second rack 13, so that the second sliding plate 9 is separated from the cover of the gas inlet 5 to open the gas inlet 5 and enter the gas, at this time, the return spring 10 is stretched, after the gas pressure on both sides is consistent, the sliding block 7 is reset under the pulling force of the return spring 10, to ensure the stability of the system. If manual intervention is needed, the operator can rotate the handle 14 to adjust the gear 11, and then control the sliding plate movement.

[0042] In the working process, the motor reducer 151 is started, the motor reducer 151 drives the stirring shaft 152 to rotate, the stirring shaft 152 drives the stirring blade 153 to rotate, the liquid medicine is stirred to ensure that the liquid medicine components are uniform and the medicine is prevented from sinking, and according to the liquid medicine characteristics and process requirements, the stirring time and rotating speed can be set.

[0043] According to the data fed back by the temperature sensor, the temperature control liquid with a suitable temperature is injected into the interlayer 17 from the liquid inlet 18 and flows out from the liquid outlet 19, so that the temperature control of the liquid medicine in the tank body 1 is realized, and the liquid medicine is stored or processed in a suitable temperature environment.

[0044] The above description is only for the preferred embodiments of the present application, obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

Claims

1. A pharmaceutical buffer tank characterized by comprising: Include: The tank body (1) is internally provided with a cavity for containing liquid medicine, the top of the tank body (1) is provided with a medicine inlet (2) communicated with the cavity, and the bottom of the tank body (1) is provided with a medicine outlet (3) communicated with the cavity; The pressure regulating box (4) is fixedly arranged on the side wall of the tank body (1) and communicated with the cavity, and the side wall of the pressure regulating box (4) is provided with an air inlet (5) and an air outlet (6); The slider (7) is arranged at the communication between the tank body (1) and the pressure regulating box (4), and is slidably arranged in the pressure regulating box (4), and the size of the inside of the pressure regulating box (4) is greater than the size of the slider (7); The first sliding plate (8) is slidably arranged in the pressure regulating box (4) and fixedly connected with the slider (7); The second sliding plate (9) is slidably arranged in the pressure regulating box (4) and synchronously reversely slidably arranged with the first sliding plate (8), the air inlet (5) and the air outlet (6) are respectively located at two ends of the second sliding plate (9), the second sliding plate (9) covers the air inlet (5) and the air outlet (6), and opens the air inlet (5) or the air outlet (6) according to the change of air pressure; The reset spring (10) is located in the pressure regulating box (4), one end of the reset spring (10) is connected with the slider (7), and the other end of the reset spring (10) is connected with the second sliding plate (9).

2. A pharmaceutical surge tank as claimed in claim 1, wherein, The gear (11) is rotatably arranged in the pressure regulating box (4), the first rack (12) is fixedly arranged at the end of the first sliding plate (8) away from the slider (7), the second rack (13) is fixedly arranged at the end of the second sliding plate (9) away from the slider (7), and the first rack (12) and the second rack (13) are engaged with the gear (11).

3. A pharmaceutical surge tank as claimed in claim 2, wherein The second sliding plate (9) is an L-shaped plate, one end of the second sliding plate (9) is fixedly connected with the reset spring (10), and the other end is fixedly connected with the second rack (13).

4. The pharmaceutical surge tank according to claim 2, wherein One end of the rotating shaft of the gear (11) extends out of the pressure regulating box (4) and is fixedly connected with the handle (14).

5. The pharmaceutical surge tank according to claim 1, wherein The tank body (1) is provided with a stirring device (15), the stirring device (15) comprises: The motor reducer (151) is fixedly arranged at the top of the tank body (1); The stirring shaft (152) is rotatably arranged in the cavity and extends out of the tank body (1) at the top and is fixedly connected with the output shaft of the motor reducer (151); The stirring blades (153) are fixedly arranged on the stirring shaft (152) in the axial direction of the stirring shaft (152).

6. The pharmaceutical surge tank according to claim 1, wherein The outer side of the tank body (1) is covered by a cladding layer (16), a sandwich layer (17) is formed between the outer wall of the tank body (1) and the cladding layer (16), a liquid outlet (19) is arranged at the top of the sandwich layer (17), and a liquid inlet (18) is arranged at the bottom of the sandwich layer (17).

7. The pharmaceutical surge tank according to claim 1, wherein A cover body (20) is arranged on the sealing cover of the medicine inlet (2), and a valve (21) is arranged on the medicine outlet (3).

8. The pharmaceutical surge tank according to claim 1, wherein A liquid level meter, a pressure gauge and a temperature sensor are arranged on the tank body (1).

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