Quantitative solution taking-out device

Abstract

The utility model relates to the technical field of liquid extraction, in particular to a quantitative solution taking-out device which comprises a solution bottle, a quantitative solution taking-out mechanism is arranged on the solution bottle and comprises a sampling barrel detachably connected to an end opening of the solution bottle, a piston push rod provided with scale marks is slidably connected into the sampling barrel, and the piston push rod is connected with the sampling barrel. The bottom end of the sampling barrel is communicated with a liquid pumping pipe and a liquid outlet pipe, the input end of the liquid pumping pipe extends into the solution bottle, and the output end of the liquid outlet pipe extends out of the sampling barrel. After a certain amount of solvent is extracted through the extraction pipe, the piston push rod is pushed downwards to open the second one-way valve, and the certain amount of extracted solution is discharged through the liquid outlet pipe, so that quantitative liquid extraction is realized, a solvent bottle does not need to be poured, and the device is more convenient and faster to use and high in safety.

Description

Technical Field

[0001] This utility model relates to the field of liquid extraction technology, and in particular to a solution quantitative extraction device. Background Technology

[0002] In the process of processing cement samples, strong acids, such as hydrochloric acid, sulfuric acid, or some strong alkaline solutions, are needed to dissolve the cement samples. Currently, these corrosive solutions are generally stored in special solvent bottles. When it is necessary to remove them, the direct pouring method or pipette is usually used. Although the pouring method is quick, it is not accurate and cannot accurately control the amount of solution taken out. It is also easy to spill or the solution bottle may slip and cause danger. In cement production inspection, many test items are closely related to stoichiometry, so it is necessary to accurately control the amount of solution taken out. Although the pipette can accurately take out the liquid, the amount taken each time is small, and multiple extractions are required, which is more troublesome.

[0003] Therefore, we propose a solution quantitative extraction device to solve the above problems. Utility Model Content

[0004] This invention provides a solution quantitative extraction device to solve the problems of inconvenient and cumbersome operation in the prior art.

[0005] The technical problem solved by this utility model is achieved by the following technical solution:

[0006] A solution quantitative extraction device includes a solution bottle with a quantitative extraction mechanism. The quantitative extraction mechanism includes a sampling tube detachably connected to the port of the solution bottle. A piston rod with graduation lines is slidably connected inside the sampling tube. The bottom end of the sampling tube is connected to a suction tube and an outlet tube. The input end of the suction tube extends into the interior of the solution bottle, and the output end of the outlet tube extends into the exterior of the sampling tube. A first one-way valve and a second one-way valve are respectively provided on the suction tube and the outlet tube, and the first one-way valve and the second one-way valve have opposite conduction directions.

[0007] Preferably, the outer wall of the sampling tube is connected with a clamp for fixing the liquid outlet tube.

[0008] Preferably, the outer wall of the sampling tube is provided with a receiving plate, and the receiving plate is located at the lower end of the clamp.

[0009] Preferably, the receiving tray is threadedly connected to a receiving cylinder for collecting residual solvent on the receiving tray.

[0010] Preferably, the outer wall of the sampling tube is connected to an installation part, which is threadedly connected to the outer wall of the solution bottle.

[0011] Preferably, the input end of the liquid extraction tube is connected to a gravity ball, and the gravity ball has multiple liquid passage holes.

[0012] The beneficial effects of this invention are as follows: by adjusting the position of the piston rod upwards to reduce the pressure inside the solvent bottle, the first one-way valve opens, and a fixed amount of solvent is drawn through the extraction tube. Then, when the piston rod is pushed downwards, the second one-way valve opens, and a certain amount of the extracted solution is discharged through the outlet tube, thus achieving quantitative liquid extraction. There is no need to pour out the solvent bottle, which is more convenient, faster, and safer. At the same time, the cooperation between the receiving tray and the receiving cylinder can collect the liquid remaining at the end of the outlet tube, avoiding solution dripping and spillage that could cause pollution. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the isometric structure provided by this utility model;

[0015] Figure 2 A cross-sectional structural schematic diagram provided for this utility model;

[0016] Figure 3 A three-dimensional structural diagram of the quantitative liquid dispensing mechanism provided by this utility model;

[0017] Figure 4 This is a schematic diagram of the separation structure of the receiving plate and the receiving cylinder in this utility model.

[0018] In the diagram, 1 is the solution bottle; 2 is the sampling tube; 21 is the suction tube; 201 is the first one-way valve; 22 is the discharge tube; 202 is the second one-way valve; 23 is the mounting part; 3 is the scale line; 31 is the piston rod; 4 is the clamp; 5 is the receiving plate; 51 is the receiving tube; 6 is the gravity ball; and 61 is the liquid passage hole. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0020] Reference Figures 1-4As shown, a solution quantitative extraction device includes a solution bottle 1 for holding solvent. The solution bottle 1 is provided with a quantitative liquid extraction mechanism. The quantitative liquid extraction mechanism includes a sampling cylinder 2 detachably connected to the port of the solution bottle 1. A piston push rod 31 with scale lines 3 is slidably connected inside the sampling cylinder 2. The bottom end of the sampling cylinder 2 is connected to a liquid extraction tube 21 and a liquid outlet tube 22. The input end of the liquid extraction tube 21 extends into the interior of the solution bottle 1, and the output end of the liquid outlet tube 22 extends into the exterior of the sampling cylinder 2.

[0021] Specifically, in use, the bottom end of the sampling cylinder 2 is first inserted into the solution bottle 1. At this time, the input end of the suction tube 21 will be immersed in the solution bottle 1. A first one-way valve 201 and a second one-way valve 202 are respectively installed on the suction tube 21 and the outlet tube 22. The first one-way valve 201 and the second one-way valve 202 have opposite conduction directions. When the piston push rod 31 is pulled upward, the pressure in the sampling cylinder 2 decreases, the first one-way valve 201 opens, and the solution in the solution bottle 1 is drawn into the sampling cylinder 2. Leakage can be observed on the piston push rod 31. The scale line 3 on the sampling cylinder 2 indicates whether the required sampling capacity has been reached. When it is necessary to drain the solution from the sampling cylinder 2, the piston rod 31 is pushed down. At this time, the pressure inside the sampling cylinder 2 increases, the first one-way valve 201 closes, and the second one-way valve 202 opens. The solution is discharged through the outlet pipe 22, thus eliminating the need for and to avoid the influence of the outlet pipe 22 on the piston rod 31. The outlet pipe 22 can be located in the inner wall of the sampling cylinder 2. The above steps facilitate quantitative extraction of the solution, which is quick and convenient, and eliminates the need to pour out the solution bottle 1, reducing safety hazards.

[0022] Reference Figure 1 As shown, furthermore, a clamp 4 for fixing the outlet pipe 22 is connected to the outer wall of the sampling cylinder 2. In order to facilitate the outlet pipe 22 to discharge the solution into a specific container, the part of the outlet pipe 22 located on the outside of the sampling cylinder 2 usually has a certain length, so that the part of the outlet pipe 22 away from the output end can be taken out and aligned with the designated collection container to discharge the solution. When the outlet pipe 22 is not discharging liquid, in order to avoid the outlet pipe 22 becoming messy, the area near the output end of the outlet pipe 22 can be fixed to the sampling cylinder 2 by the clamp 4. When it is needed, it can be removed from the clamp 4.

[0023] To prevent residual solvent from dripping randomly from the output end of the outlet pipe 22 after dispensing, a receiving plate 5 is provided on the outer wall of the sampling cylinder 2. The receiving plate 5 is located at the lower end of the clamp 4. When there is residual solvent at the output end of the outlet pipe 22 fixed to the clamp 4, it can drip directly onto the receiving plate 5 and be collected by the receiving plate to avoid spillage and pollution. The receiving plate 5 has a structure with the middle concave, which allows the residual solvent collected on the receiving plate 5 to accumulate in the middle. A receiving cylinder 51 for collecting residual solvent on the receiving plate 5 is also threaded onto the receiving plate 5. The residual solvent collected on the receiving plate 5 can enter the receiving cylinder 51 for centralized collection. The opening of the receiving cylinder 51 is small, which reduces the risk of direct spillage of the solvent collected on the receiving plate 5 when the solution bottle 1 is tilted. When the receiving cylinder 51 contains a certain amount of solvent, the receiving cylinder 51 can be removed and the solvent inside can be poured out.

[0024] Reference Figure 3 As shown, the outer wall of the sampling cylinder 2 is further connected to the mounting part 23, which is threadedly connected to the outer wall of the solution bottle 1. The entire quantitative liquid dispensing mechanism can be disassembled and installed on different solution bottles 1 to improve the usage effect. Furthermore, when adding solvent to the solution bottle 1, it can also be removed so that the opening of the solution bottle 1 can be leaked out, making it more convenient and practical.

[0025] Reference Figures 2-3 As shown, both the suction tube 21 and the discharge tube 22 can be made of flexible tubing. The input end of the suction tube 21 is connected to a gravity ball 6, and the gravity ball 6 has multiple liquid passage holes 61. The length of the suction tube 21 can be greater than the depth of the solvent bottle. When the remaining amount of solution in the solvent bottle is small, the solvent bottle can be tilted to a certain degree, and the gravity ball 6 can be moved to a position with a slightly larger amount of solvent by shaking the solvent bottle, so as to extract the solvent from the solvent bottle.

Claims

1. A solution dispensing device, comprising a solution bottle (1), wherein the solution bottle (1) is provided with a dispensing mechanism, characterized in that, The quantitative liquid sampling mechanism includes a sampling tube (2) detachably connected to the port of the solution bottle (1). A piston push rod (31) with a scale line (3) is slidably connected inside the sampling tube (2). The bottom end of the sampling tube (2) is connected to a liquid extraction tube (21) and a liquid outlet tube (22). The input end of the liquid extraction tube (21) extends into the interior of the solution bottle (1), and the output end of the liquid outlet tube (22) extends into the exterior of the sampling tube (2). A first one-way valve (201) and a second one-way valve (202) are respectively provided on the liquid extraction tube (21) and the liquid outlet tube (22). The first one-way valve (201) and the second one-way valve (202) have opposite conduction directions.

2. The solution quantitative extraction device according to claim 1, characterized in that, The outer wall of the sampling tube (2) is connected to a clamp (4) for fixing the liquid outlet tube (22).

3. The solution quantitative extraction device according to claim 2, characterized in that, The outer wall of the sampling tube (2) is provided with a receiving plate (5), and the receiving plate (5) is located at the lower end of the clamp (4).

4. The solution quantitative extraction device according to claim 3, characterized in that, The receiving plate (5) is threadedly connected to a receiving cylinder (51) for collecting residual solvent on the receiving plate (5).

5. A solution quantitative extraction device according to claim 1, characterized in that, The outer wall of the sampling tube (2) is connected to the mounting part (23), which is threadedly connected to the outer wall of the solution bottle (1).

6. The solution quantitative extraction device according to claim 1, characterized in that, The input end of the liquid extraction tube (21) is connected to a gravity ball (6), and the gravity ball (6) is provided with multiple liquid passage holes (61).

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