Medicament temporary storage system

Abstract

The utility model relates to the technical field of medicament sampling, in particular to a medicament temporary storage system, which is characterized in that a medicament feeding pump is stopped after medicament in a medicament feeding tank is conveyed, and the medicament feeding pump is communicated with a new medicament feeding tank again after the next medicament feeding tank is reached. When the next medicine feeding tank starts to feed medicine, if a worker forgets to take out a sample from the temporary storage tank, the liquid level monitoring unit can lock the medicine feeding pump, and the medicine feeding pump cannot convey new medicine. Accordingly, the sampling unit cannot obtain the new medicament sample from the conveying pipe, so that the original sample in the temporary storage box cannot be replaced or polluted, and the analysis of the medicament sample in each medicament conveying tank cannot be influenced. Meanwhile, the medicine feeding pump does not work, and the effect of reminding workers to take out samples is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medicament sampling, particularly to a medicament temporary storage system. BACKGROUND

[0002] When a sewage plant is designed, a dosing pump is usually used to transmit the medicament in a dosing tank to a storage tank for storage of the medicament. Each storage tank can store the medicaments in multiple dosing tanks, and when the transmission of the medicament in the previous dosing tank is completed, a new dosing tank is connected to the dosing pump to continue the transmission of the medicament. In addition, the medicament in each dosing tank needs to be sampled and analyzed during storage. A common sampling method is to connect a sampling pump to the transmission pipeline to extract the medicament and store it in a sample box, and then sample from the sample box for analysis. However, in actual production, the staff often forget to take out the medicament in the sample box. At this time, the next dosing tank is connected to the dosing pump, and the dosing pump can still transmit the medicament. If the sampling pump extracts the medicament from the transmission pipeline again, the original sample in the sample box will be replaced or contaminated, which will affect the analysis of the medicament sample in each dosing tank. SUMMARY

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a medicament temporary storage system to solve the problem that when the staff forget to take out the medicament in the temporary storage box, if the sampling pump extracts the medicament from the transmission pipeline again, the original sample in the sample box will be replaced or contaminated, which will affect the analysis of the medicament sample in each dosing tank.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a medicament temporary storage system connected to an original medicament feeding system, wherein the original medicament feeding system comprises a medicament feeding pump and a storage tank, the inlet end of the medicament feeding pump is connected to a dosing tank through a pipeline, the outlet end of the medicament feeding pump is connected to the storage tank through a transmission pipeline, the medicament temporary storage system comprises a temporary storage box, a sampling unit and a liquid level monitoring unit, the sampling unit is used to sample the medicament flowing through the transmission pipeline and transmit the sample to the temporary storage box, a sampling port is arranged on the temporary storage box to take out the sample in the temporary storage box through the sampling port, and the liquid level monitoring unit is configured to lock the medicament feeding pump if the sample in the temporary storage box is not taken out after the medicament feeding pump is stopped.

[0005] Optionally, a vertical overflow plate is arranged on the inner bottom surface of the temporary storage box, the top end of the overflow plate forms an overflow port with the temporary storage box, the overflow port is not lower than the set liquid level, the temporary storage box is divided into a temporary storage area and a backflow area by the overflow plate, the sampling unit is in communication with the temporary storage area, the sampling port is arranged in the temporary storage area, the backflow area is correspondingly provided with a backflow port on the temporary storage box, the backflow port is in communication with the medicine storage tank through a pipeline, and the heights of the sampling port and the backflow port are lower than the height of the overflow port.

[0006] Optionally, a partition plate is further arranged in the temporary storage area, the partition plate is vertically arranged on the inner top wall of the temporary storage box, the bottom end of the partition plate forms a flow-through port with the temporary storage box, and the communication port of the temporary storage box and the overflow port are both higher than the flow-through port.

[0007] Optionally, the liquid level monitoring unit is electrically connected with the control circuit of the medicine feeding pump, the control circuit of the medicine feeding pump comprises a power supply, the medicine feeding pump connected across the power supply and a start button SB2 connected in series with the medicine feeding pump.

[0008] The liquid level monitoring unit comprises the contact of the intermediate relay KA7 and the coil of the intermediate relay KA1 connected in series with the start button SB2, the liquid level monitoring unit further comprises the coil of a liquid level controller SL connected across the power supply and the contact of the intermediate relay KA1, the contact of the liquid level controller SL and the coil of the intermediate relay KA7 connected in series with each other, and the liquid level monitoring unit further comprises two liquid level detection electrodes arranged at intervals in the temporary storage area of the temporary storage box and electrically connected with the liquid level controller SL.

[0009] Optionally, the sampling unit comprises a peristaltic pump, the inlet end of the peristaltic pump is in communication with the conveying pipe through a pipeline, and the outlet end of the peristaltic pump is in communication with the temporary storage box.

[0010] Optionally, the peristaltic pump is started or stopped synchronously with the medicine feeding pump.

[0011] Optionally, the peristaltic pump is electrically connected across the power supply and has the contact of an intermediate relay KA8 connected in series, and the other contact of the intermediate relay KA1 and the coil of the intermediate relay KA8 connected in series across the power supply.

[0012] Optionally, the liquid level monitoring unit comprises a time delay module, the time delay module is used to lock the medicine feeding pump if the liquid level in the temporary storage box is not lower than the set liquid level after the medicine feeding pump is stopped.

[0013] Optionally, the liquid level monitoring unit is electrically connected with a control circuit of the medicine feeding pump, the control circuit of the medicine feeding pump comprises a power supply and the medicine feeding pump connected across the power supply and a start button SB2 connected in series with the medicine feeding pump;

[0014] The delay module comprises a time relay KT, the liquid level monitoring unit comprises a contact of an intermediate relay KA7 connected in series with the start button SB2 and a coil of an intermediate relay KA1, the liquid level monitoring unit further comprises a coil of a liquid level controller SL connected across the power supply and a coil of the time relay KT and a contact of the intermediate relay KA7 connected in series with each other and across the power supply, the liquid level monitoring unit further comprises two liquid level detection electrodes arranged at intervals in the temporary storage area of the temporary storage tank, and the liquid level detection electrodes are electrically connected with the liquid level controller SL.

[0015] Optionally, a plurality of medicine feeding pumps are arranged, and the plurality of medicine feeding pumps are independently controllable.

[0016] In conclusion, the beneficial effects of the present application are as follows:

[0017] When the medicine feeding tank is empty, the liquid level monitoring unit stops the medicine feeding pump, and when the next medicine feeding tank is connected, the liquid level monitoring unit starts the medicine feeding pump again. If the worker forgets to take out the sample from the temporary storage tank when the next medicine feeding tank starts to feed, the liquid level monitoring unit will lock the medicine feeding pump, so that the medicine feeding pump cannot feed new medicine. Correspondingly, the sampling unit cannot obtain the new medicine sample from the delivery pipe, so as to ensure that the original sample in the temporary storage tank cannot be replaced or contaminated, and thus the analysis of the medicine sample in each medicine feeding tank is not affected. At the same time, the medicine feeding pump is not working, which also reminds the worker to take out the sample. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a connection diagram of a medicine temporary storage system of an embodiment of the present application;

[0019] Figure 2 is Figure 1 is a local enlarged diagram of part A of the embodiment of the present application;

[0020] Figure 3 is an electrical schematic diagram of a medicine temporary storage system of an embodiment of the present application;

[0021] Figure 4 is an electrical schematic diagram of a medicine temporary storage system of another embodiment of the present application;

[0022] Figure 5 is the electrical schematic diagram of the medicine temporary storage system of another embodiment of the utility model;

[0023] Figure 6 is the electrical schematic diagram of the medicine temporary storage system of another embodiment of the utility model. DETAILED DESCRIPTION

[0024] A medicine temporary storage system of the utility model will be described below with reference to Figures 1 to 6 In the description of this embodiment, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features, that is, one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. When a certain feature "includes or contains" a certain or certain features, unless otherwise specifically described, it indicates that other features and can further include other features are not excluded.

[0025] Unless otherwise specifically defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and other terms should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0026] In addition, in the description of this embodiment, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of this embodiment, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" or "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0027] In the description of the embodiments, the description of the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] As Figure 1 and Figure 2 The present application provides a medicine temporary storage system, which is connected to an original medicine feeding system. The original medicine feeding system comprises a medicine feeding pump 1 and a medicine storage tank 12. The inlet end of the medicine feeding pump 1 is connected to a medicine feeding tank 13 through a pipeline, and the outlet end of the medicine feeding pump 1 is connected to the medicine storage tank 12 through a conveying pipe 11. By starting the medicine feeding pump 1, the medicine in the medicine feeding tank 13 can be conveyed to the medicine storage tank 12.

[0029] The medicine temporary storage system comprises a temporary storage box 2, a sampling unit and a liquid level monitoring unit. The sampling unit is used to sample the medicine flowing through the conveying pipe 11 and convey the sample into the temporary storage box 2. The temporary storage box 2 is provided with a sampling port 4, through which the sample in the temporary storage box 2 can be taken out for sample analysis. The liquid level monitoring unit is configured to lock the medicine feeding pump 1 if the sample in the temporary storage box 2 is not taken out after the medicine feeding pump 1 is stopped.

[0030] When the medicine in the medicine feeding tank 13 is conveyed, the medicine feeding pump 1 will be stopped, and after the next medicine feeding tank 13 is reached, the medicine feeding pump 1 will be connected to the new medicine feeding tank 13. When the next medicine feeding tank 13 starts to feed medicine, if the staff forgets to take the sample from the temporary storage box 2, the liquid level monitoring unit will lock the medicine feeding pump 1, so that the medicine feeding pump 1 cannot convey new medicine. Correspondingly, the sampling unit cannot obtain the sample of the new medicine from the conveying pipe 11, so as to ensure that the original sample in the temporary storage box 2 will not be replaced or contaminated, and thus the analysis of the sample of the medicine in each medicine feeding tank 13 will not be affected. At the same time, the medicine feeding pump 1 is not working, which also plays a role in reminding the staff to take out the sample.

[0031] Further, the inner bottom surface of the temporary storage box 2 is vertically provided with an overflow plate 21, the top end of the overflow plate 21 forms an overflow port 26 with the temporary storage box 2, and the overflow port 26 is not lower than the set liquid level. The temporary storage box 2 is divided into a temporary storage area 23 and a backflow area 24 through the overflow plate 21, the sampling unit is communicated with the temporary storage area 23, and the sampling port 4 is arranged in the temporary storage area 23. The backflow area 24 is correspondingly provided with a backflow port 25 on the temporary storage box 2, the backflow port 25 is communicated with the medicine storage tank 12 through a pipeline, and the height of the sampling port 4 and the backflow port 25 is lower than the height of the overflow port 26. The sample is transported to the temporary storage area 23 through the sampling unit, with the passage of time, the sample gradually rises, and when the liquid level is higher than the overflow port 26, the sample flows into the backflow area 24 and then flows into the medicine storage tank 12 through the backflow port 25, so that the liquid level in the temporary storage area 23 is always maintained at the position of the overflow port 26. At this time, when the next medicine tank 13 starts to send medicine, if the staff forgets to take out the sample from the temporary storage box 2, the new medicine is sent into the temporary storage box 2 by the sampling unit, and the original medicine sample in the temporary storage box 2 will overflow from the overflow port 26 to the backflow area 24, so that the original medicine sample is replaced, and through the liquid level monitoring unit, the original medicine sample can be prevented from being replaced.

[0032] Further, the temporary storage area 23 is further provided with a partition plate 22. The partition plate 22 is vertically arranged on the inner top wall of the temporary storage box 2, and the bottom end of the partition plate 22 forms a flow-through port 27 with the temporary storage box 2. The communication port of the sampling unit with the temporary storage box 2 and the overflow port 26 are all higher than the flow-through port 27. The medicine enters the temporary storage area 23 from the upper side and moves upward to the overflow port 26 through the flow-through port 27 at the lower side, and then enters the backflow area 24 for recycling. By arranging the partition plate 22, when the original sample in the temporary storage box 2 is sampled, the new medicine enters the temporary storage box 2 and flows from the lower side to the upper side to the backflow area 24, so that the residual medicine in the temporary storage area 23 can be replaced more thoroughly with the new medicine, thereby reducing the influence on the sampling result of the new medicine.

[0033] In some alternative embodiments of the present application, the temporary storage box 2 is selected to have a relatively large volume or the extraction rate of the peristaltic pump 3 is relatively low, so that when the medicine in the medicine tank 13 is completely delivered, the temporary storage box 2 still has storage space. At this time, when the next medicine tank 13 starts to send medicine, if the staff forgets to take out the sample from the temporary storage box 2, the new medicine is sent into the temporary storage box 2 by the sampling unit, and the original medicine sample in the temporary storage box 2 will be mixed with the new medicine sample, so that the original medicine sample is contaminated, and through the liquid level monitoring unit, the original medicine sample can be prevented from being contaminated.

[0034] Further, the sampling unit comprises a peristaltic pump 3, an inlet end of the peristaltic pump 3 is communicated with the delivery pipe 11 through a pipe, and an outlet end of the peristaltic pump 3 is communicated with the temporary storage box 2. The peristaltic pump 3 can deliver the medicament flowing through the delivery pipe 11 into the temporary storage box 2 by starting the peristaltic pump 3, which is simple in structure and convenient to control.

[0035] Further, the sampling port 4 is connected with a sampling pipe 41, and the sampling pipe 41 is provided with a sampling valve 42. When sampling is needed, the sampling valve 42 is opened, and the sample can flow out through the sampling pipe 41, which is convenient to operate. Meanwhile, the temporary storage box 2 has a small volume, and the pressure of the internal medicament is small, so that it is safer to open the sampling valve 42 for sampling.

[0036] Further, as shown in Figure 3 , the liquid level monitoring unit is electrically connected with the control circuit of the medicament inlet pump M1. Specifically, the control circuit of the medicament inlet pump M1 comprises a power supply, the medicament inlet pump M1 connected across the power supply, and a start button SB2 connected in series with the medicament inlet pump M1. The start button SB2 can control the on-off of the medicament inlet pump M1. The liquid level monitoring unit comprises the contact of an intermediate relay KA7 connected in series with the start button SB2 and the coil of an intermediate relay KA1. The liquid level monitoring unit further comprises the coil of a liquid level controller SL connected across the power supply and the contact of the intermediate relay KA1, the contact of the liquid level controller SL and the coil of the intermediate relay KA7 connected in series with each other across the power supply. Referring to Figure 2 , the liquid level monitoring unit further comprises two liquid level detection electrodes 5 arranged at intervals in the temporary storage area of the temporary storage box. Optionally, the bottom end of the liquid level detection electrode 5 is flush with the set liquid level. The liquid level detection electrode 5 is electrically connected with the liquid level controller SL.

[0037] Further, referring to Figure 3 , the peristaltic pump M is started or closed synchronously with the medicament inlet pump M1. The peristaltic pump M is electrically connected across the power supply and has the contact of an intermediate relay KA8 connected in series therewith. The other contact of the intermediate relay KA1 and the coil of the intermediate relay KA8 are also connected in series across the power supply.

[0038] In summary, when the power is turned on, the contact of the liquid level controller SL is disconnected, the coil of the intermediate relay KA7 is not electrified, and the contact of the intermediate relay KA7 is closed. Then the start button SB2 is pressed, the coil of the intermediate relay KA1 is electrified, the contact of the intermediate relay KA1 connected with the coil of the intermediate relay KA8 is closed, and the contact of the intermediate relay KA1 connected with the contact of the liquid level controller SL is disconnected. At this time, the medicine feeding pump M1 and the peristaltic pump M start to work. When the medicine in the temporary storage tank reaches the set liquid level, the liquid level detection electrode 5 is turned on, the contact of the liquid level controller SL is closed. However, since the contact of the intermediate relay KA1 connected with the contact of the liquid level controller SL is still disconnected, the coil of the intermediate relay KA7 is still not electrified, the contact of the intermediate relay KA7 is still closed, the medicine feeding pump M1 and the peristaltic pump M still work normally, and the medicine overflowing in the temporary storage tank is transmitted to the medicine storage tank through the backflow port. When the medicine feeding in the medicine tank is completed, the start button SB2 is turned off, the medicine feeding pump M1 stops working, at this time, the coil of the intermediate relay KA1 is not electrified, the contact of the intermediate relay KA1 connected with the coil of the intermediate relay KA8 is disconnected, and the peristaltic pump M also stops working. At the same time, the contact of the intermediate relay KA1 connected with the contact of the liquid level controller SL is closed, the medicine in the temporary storage tank is still not lower than the set liquid level, the liquid level controller SL is also in the closed state due to the turn-on of the liquid level detection electrode 5. Therefore, the coil of the intermediate relay KA7 is electrified, and the contact of the intermediate relay KA7 is disconnected. At this time, even if the start button SB2 is closed again, the medicine feeding pump M1 will not work, and the locking of the medicine feeding pump M1 is realized. Only when the medicine in the temporary storage tank is taken out and the contact of the liquid level controller SL is disconnected again, the locking can be released, so that it is ensured that the sample in the temporary storage tank will not be replaced by the medicine in the next medicine tank.

[0039] Further, with reference to Figure 3 The switch QS is arranged on the live wire of the power supply, and when the switch QS is closed, the power supply is turned on.

[0040] In some other embodiments of the utility model, the medicine feeding pump is provided with a plurality of medicine feeding pumps, and the plurality of medicine feeding pumps can be independently controlled. When one of the medicine feeding pumps is faulty, another medicine feeding pump can be selected, and the purpose of ensuring that the sample in the temporary storage tank will not be replaced by the medicine in the next medicine tank can also be achieved. Alternatively, the medicine feeding pump is provided with two medicine feeding pumps. At this time, the liquid level monitoring unit is electrically connected with the control circuits of the two medicine feeding pumps.

[0041] Specifically, as Figure 4The control circuit of one of the medicine feeding pumps M1 includes a power supply and the medicine feeding pump M1 connected across the power supply and a start button SB2 connected in series with the medicine feeding pump M1. The control circuit of the other medicine feeding pump M2 includes the medicine feeding pump M2 connected across the power supply and a start button SB4 connected in series with the medicine feeding pump M2. The start button SB2 and the start button SB4 are used to control the on-off of the medicine feeding pumps M1 and M2 respectively. The liquid level monitoring unit includes the contacts of an intermediate relay KA7 connected in series with the start button SB2, the coil of the intermediate relay KA1, the contacts of the intermediate relay KA7 connected in series with the start button SB4, the coil of the intermediate relay KA4 and the coil of an intermediate relay KA4-2 connected in parallel with the coil of the intermediate relay KA4. The liquid level monitoring unit further includes the coil of a liquid level controller SL connected across the power supply and the contacts of the intermediate relay KA1, the contacts of the intermediate relay KA4, the contacts of the liquid level controller SL and the coil of the intermediate relay KA7 connected in series with each other. The liquid level monitoring unit further includes two liquid level detection electrodes arranged at intervals in the temporary storage area of the temporary storage tank. Specifically, the bottom ends of the liquid level detection electrodes are flush with the set liquid level. The liquid level detection electrodes are electrically connected to the liquid level controller SL. The peristaltic pump M is started or stopped synchronously with any one of the medicine feeding pumps M1 and M2. The peristaltic pump M is electrically connected across the power supply and the peristaltic pump M is connected in series with the contacts of an intermediate relay KA8. The other contact of the intermediate relay KA1, the contact of the intermediate relay KA4-2 connected in parallel with the other contact of the intermediate relay KA1 and the coil of the intermediate relay KA8 are also connected across the power supply.

[0042] Further, with reference to Figure 4 , the peristaltic pump M is started or stopped synchronously with any one of the medicine feeding pumps M1 and M2. The peristaltic pump M is electrically connected across the power supply and the peristaltic pump M is connected in series with the contacts of an intermediate relay KA8. The other contact of the intermediate relay KA1, the contact of the intermediate relay KA4-2 connected in parallel with the other contact of the intermediate relay KA1 and the coil of the intermediate relay KA8 are also connected across the power supply.

[0043] In some embodiments of the utility model, the liquid level monitoring unit includes a time delay module, which is used to delay the locking of the medicine feeding pump if the medicine in the temporary storage tank is not lower than the set liquid level after the medicine feeding pump is stopped. During the delivery of the medicine by the medicine feeding pump, cavitation may occur in the medicine feeding pump, which requires the continuous opening and closing of the medicine feeding pump for the release of air. However, when the release of air is required, the medicine feeding pump is in the locked state if the medicine in the temporary storage tank is not lower than the set liquid level, so the medicine feeding pump cannot be opened and closed. Therefore, the time delay module is arranged to delay the locking of the medicine feeding pump if the medicine in the temporary storage tank is not lower than the set liquid level after the medicine feeding pump is stopped, and the release of air can be performed during the delay period.

[0044] Further, as shown in Figure 5 The liquid level monitoring unit is electrically connected with the control circuit of the medicine feeding pump M1. Specifically, the control circuit of the medicine feeding pump M1 includes a power supply, the medicine feeding pump M1 connected across the power supply, and a start button SB2 connected in series with the medicine feeding pump M1. The start button SB2 can be used to control the on-off of the medicine feeding pump M1. The delay module includes a time relay KT. The liquid level monitoring unit includes the contacts of an intermediate relay KA7 connected in series with the start button SB2, and the coil of an intermediate relay KA1. The liquid level monitoring unit further includes the coil of a liquid level controller SL connected across the power supply, and the contacts of the intermediate relay KA1, the contacts of the liquid level controller SL, and the coil of the time relay KT connected in series with each other across the power supply, and the contacts of the time relay KT and the coil of the intermediate relay KA7 connected in parallel across the power supply. The liquid level monitoring unit further includes two liquid level detection electrodes 5 arranged at intervals in the temporary storage area of the temporary storage tank. Specifically, the bottom ends of the liquid level detection electrodes 5 are flush with the set liquid level. The liquid level detection electrodes 5 are electrically connected with the liquid level controller SL.

[0045] Further, as shown in Figure 5 The peristaltic pump M is started or stopped synchronously with the medicine feeding pump M1. The peristaltic pump M is electrically connected across the power supply and has the contacts of an intermediate relay KA8 connected in series. The other contact of the intermediate relay KA1 and the coil of the intermediate relay KA8 are also connected in series across the power supply.

[0046] In summary, when the power is turned on, the contact of the liquid level controller SL is disconnected, the coil of the time relay KT is not electrified, the contact of the time relay KT is disconnected, the coil of the intermediate relay KA7 is not electrified, and the contact of the intermediate relay KA7 is closed. Then, the start button SB2 is pressed, the coil of the intermediate relay KA1 is electrified, the contact of the intermediate relay KA1 connected with the coil of the intermediate relay KA8 is closed, and the contact of the intermediate relay KA1 connected with the contact of the liquid level controller SL is disconnected. At this time, the medicine feeding pump M1 and the peristaltic pump M start to work. When the medicine feeding pump M1 needs to be deflated, the start button SB2 is turned off to stop the medicine feeding pump. If the medicine in the temporary storage box reaches the set liquid level, the liquid level detection electrode 5 is turned on, the contact of the liquid level controller SL is closed, the coil of the time relay KT is electrified, but the contact of the time relay KT is delayed to be closed, the coil of the intermediate relay KA7 is still not electrified, and the contact of the intermediate relay KA7 is still closed. At this time, the start button SB2 is pressed again, and the medicine feeding pump M1 can still be started. Therefore, during the time when the contact of the time relay KT is delayed to be closed, the medicine feeding pump M1 can be started and turned off at will, and the medicine feeding pump M1 will not be locked. At the same time, since the interval time of the next medicine feeding tank communicated with the medicine feeding pump M1 is much larger than the delay time of the time relay KT, before the next medicine feeding tank is communicated with the medicine feeding pump M1, the contact of the time relay KT is closed, the coil of the intermediate relay KA7 is electrified, the contact of the intermediate relay KA7 is disconnected, and the locking of the medicine feeding pump can be realized to ensure that the sample in the temporary storage box will not be replaced by the medicine in the next medicine feeding tank.

[0047] In some embodiments of the present application, the medicine feeding pump is provided with a plurality of medicine feeding pumps, and the plurality of medicine feeding pumps can be independently controlled. When one of the medicine feeding pumps fails, another medicine feeding pump can be selected, and the purpose of ensuring that the sample in the temporary storage box will not be replaced by the medicine in the next medicine feeding tank can also be achieved. Optionally, the medicine feeding pump is provided with two medicine feeding pumps. At this time, the liquid level monitoring unit is electrically connected with the control circuit of the two medicine feeding pumps.

[0048] Specifically, as Figure 6The control circuit of one of the infusion pumps M1 includes a power supply and the infusion pump M1 connected across the power supply and a start button SB2 connected in series with the infusion pump M1. The control circuit of the other infusion pump M2 includes the infusion pump M2 connected across the power supply and a start button SB4 connected in series with the infusion pump M2. The start button SB2 and the start button SB4 can be used to control the on-off of the infusion pump M1 and the infusion pump M2 respectively. The time delay module includes a time relay KT. The liquid level monitoring unit includes the contact of an intermediate relay KA7 connected in series with the start button SB2 and the coil of the intermediate relay KA1, the contact of the intermediate relay KA7 connected in series with the start button SB4, the coil of the intermediate relay KA4 and the coil of an intermediate relay KA4-2 connected in parallel with the coil of the intermediate relay KA4. The liquid level monitoring unit further includes the coil of a liquid level controller SL connected across the power supply and the contact of the intermediate relay KA1, the contact of the intermediate relay KA4, the contact of the liquid level controller SL and the coil of the time relay KT connected in series with each other across the power supply and the contact of the time relay KT and the coil of the intermediate relay KA7 connected in parallel across the power supply. With reference to Figure 2 The liquid level monitoring unit further includes two liquid level detection electrodes 5 arranged at intervals in the temporary storage area of the temporary storage tank. Specifically, the bottom end of the liquid level detection electrode 5 is flush with the set liquid level. The liquid level detection electrode 5 is electrically connected to the liquid level controller SL.

[0049] Further, with reference to Figure 6 The peristaltic pump M is synchronously started or stopped with either of the infusion pump M1 and the infusion pump M2. The peristaltic pump M is electrically connected across the power supply and the peristaltic pump M is connected in series with the contact of an intermediate relay KA8. The other contact of the intermediate relay KA1, the contact of the intermediate relay KA4-2 connected in parallel with the other contact of the intermediate relay KA1 and the coil of the intermediate relay KA8 are also connected across the power supply.

[0050] The above embodiments are only illustrative of the principles and effects of the present application and are not intended to limit the present application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should be covered by the claims of the present application.

Claims

1. A medicine temporary storage system connected to an original medicine feeding system, wherein the original medicine feeding system comprises a medicine feeding pump and a medicine storage tank, an inlet end of the medicine feeding pump is communicated with a medicine sending tank through a pipeline, and an outlet end of the medicine feeding pump is communicated with the medicine storage tank through a delivery pipe, characterized in that, The medicine temporary storage system comprises a temporary storage box, a sampling unit and a liquid level monitoring unit, the sampling unit is used for sampling medicine flowing through the delivery pipe and delivering the sample into the temporary storage box, a sampling port is arranged on the temporary storage box to take out the sample in the temporary storage box through the sampling port, and the liquid level monitoring unit is configured to lock the medicine inlet pump if the sample in the temporary storage box is not taken out after the medicine inlet pump is stopped.

2. The medicament staging system of claim 1, wherein, A weir plate is vertically arranged on the inner bottom surface of the temporary storage box, the top end of the weir plate forms a weir opening with the temporary storage box, the weir opening is not lower than a set liquid level, the temporary storage box is divided into a temporary storage area and a backflow area through the weir plate, the sampling unit communicates with the temporary storage area, the sampling port is arranged in the temporary storage area, and a backflow port corresponding to the backflow area is arranged on the temporary storage box, the backflow port communicates with the medicine storage tank through a pipeline, and the heights of the sampling port and the backflow port are lower than the height of the weir opening.

3. The medicament staging system of claim 2, wherein, An isolation plate is further arranged in the temporary storage area, the isolation plate is vertically arranged on the inner top wall of the temporary storage box, the bottom end of the isolation plate forms a flow-through opening with the temporary storage box, and the communication opening of the temporary storage box, the weir opening and the flow-through opening are arranged in sequence from top to bottom.

4. The medicament staging system of claim 2, wherein, The liquid level monitoring unit is electrically connected with the control circuit of the medicine inlet pump, the control circuit of the medicine inlet pump comprises a power supply and the medicine inlet pump connected across the power supply and a start button SB2 connected in series with the medicine inlet pump; The liquid level monitoring unit comprises the contact of an intermediate relay KA7 connected in series with the start button SB2 and the coil of an intermediate relay KA1, the liquid level monitoring unit further comprises the coil of a liquid level controller SL connected across the power supply and the contact of the intermediate relay KA1, the contact of the liquid level controller SL and the coil of the intermediate relay KA7 connected in series with each other across the power supply, and two liquid level detection electrodes arranged in the temporary storage area of the temporary storage box in a spaced manner, the liquid level detection electrodes being electrically connected with the liquid level controller SL.

5. The medicament staging system of claim 4, wherein, The sampling unit comprises a peristaltic pump, the inlet end of the peristaltic pump communicates with the delivery pipe through a pipeline, and the outlet end of the peristaltic pump communicates with the temporary storage box.

6. The medicament staging system of claim 5, wherein, The peristaltic pump is started or stopped synchronously with the medicine inlet pump.

7. The medicament staging system of claim 6, wherein, The peristaltic pump is electrically connected across the power supply and has the contact of an intermediate relay KA8 connected in series, and the other contact of the intermediate relay KA1 and the coil of the intermediate relay KA8 connected in series across the power supply.

8. The medicament staging system of claim 2, wherein, The liquid level monitoring unit comprises a time delay module, the time delay module is used for time delay locking the medicine inlet pump if the medicine in the temporary storage box is not lower than the set liquid level after the medicine inlet pump is stopped.

9. The medicament staging system of claim 8, wherein, The liquid level monitoring unit is electrically connected with the control circuit of the medicine inlet pump, the control circuit of the medicine inlet pump comprises a power supply and the medicine inlet pump connected across the power supply and a start button SB2 connected in series with the medicine inlet pump; The time delay module comprises a time relay KT, the liquid level monitoring unit comprises a contact of an intermediate relay KA7 connected in series with the start button SB2 and a coil of an intermediate relay KA1, the liquid level monitoring unit further comprises a coil of a liquid level controller SL connected across the power supply and a coil of the time relay KT connected across the power supply in series with one of the contacts of the intermediate relay KA1, a contact of the liquid level controller SL and the intermediate relay KA7 and the contacts of the time relay KT connected across the power supply in parallel with the coil of the intermediate relay KA7 connected across the power supply in series with each other, and two liquid level detection electrodes arranged at intervals in the temporary storage area of the temporary storage tank, which are electrically connected with the liquid level controller SL.

10. The medicament storage system according to claim 4 or 9, characterized in that, The medicine inlet pumps are provided in plurality, and the plurality of medicine inlet pumps can be independently controlled.

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