Injection water sampling device for pharmacy

Abstract

The utility model discloses a pharmaceutical injection water sampling device, which relates to the technical field of sampling devices and comprises an exploring tube, a connecting seat is fixedly mounted at the upper end of the exploring tube, a motor is arranged at the upper end of the connecting seat, the lower end of the motor is fixedly mounted on the connecting seat through a mounting frame, and the motor is electrically connected with an external controller through a connecting wire. A sampling barrel is movably installed in the exploring tube, a control lead screw is further movably installed in the exploring tube and the connecting base, and the upper end of the control lead screw penetrates through the connecting base to be fixedly connected with the output end of the motor. The probe tube is inserted into the matching tank through the connecting seat, and part of water for injection in the liquid preparation tank can be extracted into the connecting seat by virtue of the control screw rod, the sampling barrel and the flow guide seat, and is discharged and collected through the liquid discharge pipe, namely, the whole sampling structure is arranged in the liquid preparation tank, so that the interior of the liquid preparation tank is not exposed outside, and the water for injection is prevented from being polluted; and the sampling barrel is matched with the first liquid discharge hole and the second liquid discharge hole, so that injection water can be prevented from remaining in the sampling barrel after the liquid preparation tank is empty.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a sampling device for pharmaceutical injection water. Background Technique

[0002] Injection water is mainly used as a solvent or diluent for injectable drugs in hospitals and other medical institutions to ensure that injectable drugs can be fully dissolved and to guarantee the safety of treatment. Generally, injection water is prepared by distillation or re-distillation of deionized water, so it is also called double-distilled water;

[0003] When sampling injection water, a certain amount of injection water sample is obtained from the liquid preparation tank through a sampling device. Since existing liquid preparation tanks generally cooperate with the sampling device through the corresponding ports at the top of the tank body, when sampling through a sampling tube inserted into the liquid preparation tank and cooperating with a sampling pump, after sampling is completed, part of the injection water remains in the sampling tube, which easily causes the remaining injection water in the sampling tube to deteriorate and contaminate the injection water in the subsequent liquid preparation tank or, during subsequent sampling, the sampled injection water sample is mixed with the previous sampling sample, affecting the detection. In addition, some sampling devices using piston extraction draw samples through the ports at the top of the liquid preparation tank, and this operation method easily causes the contaminated sampling device to contaminate the injection water in the liquid preparation tank after being inserted into the liquid preparation tank. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a sampling device for pharmaceutical injection water, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A sampling device for pharmaceutical injection water includes a probe tube. A connecting seat is fixedly installed at the upper end of the probe tube. A motor is arranged at the upper end of the connecting seat. The lower end of the motor is fixedly installed on the connecting seat through a mounting frame, and the motor is electrically connected to an external controller through a connecting wire. A sampling cylinder is movably installed in the probe tube. A control lead screw is also movably installed in the probe tube and the connecting seat. The upper end of the control lead screw passes through the connecting seat and is fixedly connected to the output end of the motor.

[0007] As a further preferred scheme of the utility model, the transverse cross-section of the probe tube is in a hexagonal structure, and through grooves with a hexagonal transverse cross-section are respectively formed in the probe tube and the connecting seat.

[0008] As a further preferred embodiment of the present utility model, four liquid permeating grooves are provided inside the probe tube. The probe tube located between two of the liquid permeating grooves is also provided with first liquid discharging holes. By providing the liquid permeating grooves, the medium in the liquid distribution tank can enter the sampling cylinder through the liquid permeating grooves, and by providing the first liquid discharging holes, the medium in the sampling cylinder can be prevented from remaining in the sampling cylinder.

[0009] As a further preferred embodiment of the present utility model, a first limiting seat is fixedly installed inside the probe tube at a position below the liquid permeating groove. The first limiting seat is arranged along the inner edge of the probe tube. By providing the first limiting seat, the downward movement of the sampling cylinder in the probe tube can be limited.

[0010] As a further preferred embodiment of the present utility model, a diversion seat is fixedly installed at the lower end of the sampling cylinder. The diversion seat is inclined from the central position towards the inside of the sampling cylinder. A threaded hole is provided at the central position inside the diversion seat. Second liquid discharging holes are provided on both sides of the sampling cylinder above the diversion seat. A sealing ring is inserted and installed outside the diversion seat. The sampling cylinder and the diversion seat are inserted and installed inside the probe tube or the connecting seat. By providing the sampling cylinder and the diversion seat, the medium in the liquid distribution tank can be extracted in cooperation with the control lead screw and the probe tube.

[0011] As a further preferred embodiment of the present utility model, a liquid discharging pipe is fixedly installed outside the connecting seat.

[0012] As a further preferred embodiment of the present utility model, a second limiting seat is fixedly installed at the lower end of the control lead screw, and the control lead screw is also threadedly connected to the threaded hole inside the diversion seat. By driving the control lead screw to rotate by a motor, the sampling cylinder and the diversion seat can be controlled to move up and down inside the probe tube and the connecting seat.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] For the injection water sampling device for pharmaceutical use of the present utility model, the probe tube is inserted and installed inside the matching tank through the connecting seat, and a part of the injection water in the liquid distribution tank can be extracted into the connecting seat by means of the control lead screw, the sampling cylinder and the diversion seat, and discharged and collected through the liquid discharging pipe. That is, the sampling structure is entirely placed inside the liquid distribution tank, without exposing the inside of the liquid distribution tank, preventing the injection water from being contaminated, and the sampling cylinder, in cooperation with the first liquid discharging holes and the second liquid discharging holes, can prevent the injection water from remaining in the sampling cylinder after the liquid distribution tank is emptied. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the main structure of the injection water sampling device for pharmaceutical use of the present utility model;

[0016] Figure 2 is a cross-sectional view of the main structure of the injection water sampling device for pharmaceutical use of the present utility model;

[0017] Figure 3 is Figure 2 an enlarged view of location A in

[0018] Figure 4 is Figure 2 an enlarged view of location B in

[0019] In the figure: 1, exploration pipe; 2, connecting seat; 3, motor; 4, mounting bracket; 5, sampling cylinder; 6, control lead screw; 7, liquid permeating groove; 8, first limit seat; 9, first liquid discharge hole; 10, liquid discharge pipe; 11, diversion seat; 12, screw hole; 13, second liquid discharge hole; 14, sealing ring; 15, second limit seat. Specific embodiments

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] As Figures 1-4 shown, a sampling device for pharmaceutical injection water provided by the present utility model includes an exploration pipe 1. A connecting seat 2 is fixedly installed at the upper end of the exploration pipe 1. A motor 3 is arranged at the upper end of the connecting seat 2. The lower end of the motor 3 is fixedly installed on the connecting seat 2 through a mounting bracket 4, and the motor 3 is electrically connected to an external controller through a connecting wire. A sampling cylinder 5 is movably installed in the exploration pipe 1. A control lead screw 6 is also movably installed in the exploration pipe 1 and the connecting seat 2. The upper end of the control lead screw 6 passes through the connecting seat 2 and is fixedly connected to the output end of the motor 3.

[0022] As Figures 3-4 shown, the transverse cross-section of the exploration pipe 1 is in a hexagonal structure. Through grooves with a hexagonal transverse cross-section are respectively opened in the exploration pipe 1 and the connecting seat 2. Four liquid permeating grooves 7 are opened on the inner side of the exploration pipe 1. First liquid discharge holes 9 are also opened in the exploration pipe 1 between two of the liquid permeating grooves 7. By means of the opening of the liquid permeating grooves 7, the medium in the dispensing tank can enter the sampling cylinder 5 through the liquid permeating grooves 7. The opening of the first liquid discharge holes 9 can prevent the medium in the sampling cylinder 5 from remaining in the sampling cylinder 5. A first limit seat 8 is fixedly installed on the inner side of the exploration pipe 1 at a position below the liquid permeating grooves 7. The first limit seat 8 is arranged along the inner edge of the exploration pipe 1. Through the setting of the first limit seat 8, the downward movement of the sampling cylinder 5 in the exploration pipe 1 can be limited;

[0023] As Figures 3-4As shown in the figure, a flow guide seat 11 is fixedly installed at the lower end of the sampling cylinder 5. The flow guide seat 11 inclines from the central position towards the inner side of the sampling cylinder 5. A screw hole 12 is provided at the central position inside the flow guide seat 11. Second drain holes 13 are provided on both sides of the sampling cylinder 5 above the flow guide seat 11. A sealing ring 14 is inserted and installed outside the flow guide seat 11. The sampling cylinder 5 and the flow guide seat 11 are inserted and installed in the detection tube 1 or the connecting seat 2. With the arrangement of the sampling cylinder 5 and the flow guide seat 11, the medium in the liquid distribution tank can be extracted by cooperating with the control screw rod 6 and the detection tube 1. A drain pipe 10 is fixedly installed outside the connecting seat 2. A second limit seat 15 is fixedly installed at the lower end of the control screw rod 6, and the control screw rod 6 is also threadedly connected with the screw hole 12 inside the flow guide seat 11. By driving the control screw rod 6 to rotate through the motor 3, the up and down movement of the sampling cylinder 5 and the flow guide seat 11 in the detection tube 1 and the connecting seat 2 can be controlled.

[0024] It should be noted that the present utility model is an injection water sampling device for pharmaceutical use. When sampling the injection water in the liquid distribution tank, the motor 3 and the solenoid valve connected to the drain pipe 10 can be synchronously started through an external controller. Then, the solenoid valve connected to the drain pipe 10 is opened, and the motor 3 drives the control screw rod 6 to rotate. The control screw rod 6 also rotates in the screw hole 12 of the flow guide seat 11, so that the sampling cylinder 5 containing the injection water sample gradually moves up from the detection tube 1 into the connecting seat 2. Then, when the sampling cylinder 5 moves into the connecting seat 2, one of the second drain holes 13 on one side of the sampling cylinder 5 is butted against one end of the drain pipe 10, so that the injection water sample in the sampling cylinder 5 flows into the drain pipe 10 through one of the second drain holes 13. Thus, a sample storage container can be placed at one end of the drain pipe 10 to collect the sample. Then, the controller controls the output end of the motor 3 to rotate in the reverse direction, so that the control screw rod 6 rotates in the reverse direction in the screw hole 12 to drive the flow guide seat 11 and the sampling cylinder 5 to move to the lower position inside the detection tube 1, so that the injection water in the liquid distribution tank enters the sampling cylinder 5 through the liquid permeation groove 7;

[0025] When the injection water in the liquid distribution tank is emptied, since the two second drain holes 13 are respectively aligned with the corresponding first drain holes 9, when the liquid distribution tank is emptied, the injection water in the sampling cylinder 5 is also emptied together.

[0026] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An injection water sampling device for pharmaceutical use, characterized in that: It includes a probe tube (1), a connecting seat (2) is fixedly installed at the upper end of the probe tube (1), a motor (3) is arranged at the upper end of the connecting seat (2), the lower end of the motor (3) is fixedly installed on the connecting seat (2) through a mounting frame (4), and the motor (3) is electrically connected to an external controller through a connecting wire. A sampling cylinder (5) is movably installed in the probe tube (1), and a control lead screw (6) is also movably installed in the probe tube (1) and the connecting seat (2). The upper end of the control lead screw (6) passes through the connecting seat (2) and is fixedly connected to the output end of the motor (3).

2. The sampling device for pharmaceutical injection water according to claim 1, wherein: The transverse section of the probe tube (1) is in a hexagonal structure, and through grooves with a hexagonal transverse section are respectively formed in the probe tube (1) and the connecting seat (2).

3. The sampling device for pharmaceutical injection water according to claim 2, characterized in that: Four liquid permeating grooves (7) are formed in the inner side of the probe tube (1), and first liquid discharge holes (9) are also formed in the probe tube (1) between two of the liquid permeating grooves (7).

4. The sampling device for pharmaceutical injection water according to claim 3, characterized in that: A first limiting seat (8) is fixedly installed on the inner side of the probe tube (1) at a position below the liquid permeating groove (7), and the first limiting seat (8) is arranged along the inner edge of the probe tube (1).

5. The sampling device for pharmaceutical injection water according to claim 1, characterized in that: A diversion seat (11) is fixedly installed at the lower end of the sampling cylinder (5). The diversion seat (11) inclines towards the inner side of the sampling cylinder (5) from the central position. A screw hole (12) is formed in the central position of the diversion seat (11). Second liquid discharge holes (13) are formed on both sides of the sampling cylinder (5) at a position above the diversion seat (11). A sealing ring (14) is inserted and installed on the outer side of the diversion seat (11). The sampling cylinder (5) and the diversion seat (11) are inserted and installed in the probe tube (1) or the connecting seat (2).

6. The sampling device for pharmaceutical injection water according to claim 1, wherein: A liquid discharge pipe (10) is fixedly installed on the outer side of the connecting seat (2).

7. A sampling device for pharmaceutical injection water according to claim 5, characterized in that: A second limiting seat (15) is fixedly installed at the lower end of the control lead screw (6), and the control lead screw (6) is also in threaded connection with the screw hole (12) in the diversion seat (11).

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