Chemical reagent additive liquid changing device

Abstract

The utility model discloses a chemical reagent assistant liquid changing device, and particularly relates to the technical field of chemical reagent assistant preparation, the chemical reagent assistant liquid changing device comprises a collecting bottle and a liquid changing bottle, the top of the collecting bottle and the top of the liquid changing bottle are both in threaded connection with bottle caps, and the tops of the two bottle caps are respectively communicated with a first guide pipe and a second guide pipe. A conversion mechanism used for converting the flowing direction of gas is arranged between the first guide pipe and the second guide pipe, a reaction bottle is arranged on one side of the first guide pipe, and a gas pumping mechanism used for pumping the gas in the reaction bottle is arranged at one end in the reaction bottle; the utility model has the technical effects and advantages that one end of the second catheter can be conveniently switched and communicated between the first catheter and the air guide tube by arranging the switching mechanism, so that the operation convenience is greatly improved; and by arranging the air exhaust mechanism, air in the liquid changing bottle can quickly flow into the reaction bottle, so that the reaction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical reagent additive preparation, and more specifically, the utility model relates to a chemical reagent additive liquid changing device. Background Technique

[0002] Chemical reagents are relatively standard substances for chemical research and component analysis. They are important conditions for scientific and technological progress and are widely used in the synthesis, separation, qualitative and quantitative analysis of substances. It can be said that chemical reagents are the eyes of chemists. In the daily work of factories, schools, hospitals and research institutes, chemical reagents are indispensable. Sometimes, chemical reagents need to be replaced during chemical experiments, so a liquid changing device is required to complete the liquid change.

[0003] For example, a liquid changing device for preparing chemical reagent additives with the patent number 202321497868.8 includes a basic component and an air filling component. The basic component includes a liquid changing part and a detection part. The detection part is arranged on the liquid changing part. The air filling component includes an air inlet part and a limiting part. The air inlet part is arranged on the liquid changing part, and the limiting part is arranged on the air inlet part. The liquid changing part includes a liquid changing bottle, a collection bottle, a bottle stopper, a liquid inlet pipe, a gas pipe, a first manual valve and a large bottle cap. The collection bottle is arranged on the side of the liquid changing bottle. When the liquid changing device for preparing chemical reagent additives is in use, it can achieve the effect of accelerating the gas flow inside the liquid changing bottle, so as to ensure that gas can quickly enter the tube, which is convenient for the reaction bottle to detect the gas and improves the use efficiency.

[0004] Although this device can accelerate the gas flow effect and improve the use efficiency, in actual work, it is necessary to frequently manually control the opening and closing of the first manual valve and the second manual valve. The operation steps are relatively cumbersome, not only the efficiency is low, but also it is easy to have operation errors, resulting in the first manual valve and the second manual valve not being able to open and close in time. And this device improves the gas flow rate inside the liquid changing bottle by pressing the piston to achieve the efficiency of gas detection. However, the liquid changing bottle is connected to the reaction bottle, and pressing the piston will only cause the air pressure in the liquid changing bottle and the reaction bottle to rise, and the effect of increasing the gas flow rate is not obvious, resulting in the gas detection efficiency not being able to be quickly improved. Content of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a chemical reagent additive liquid changing device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A chemical reagent additive liquid changing device, comprising: a collection bottle and a liquid changing bottle. The tops of the collection bottle and the liquid changing bottle are both threadedly connected with bottle caps. One end of each of the two bottle caps is respectively communicated with a first conduit and a second conduit. A conversion mechanism for converting the flow direction of gas is provided between the first conduit and the second conduit. A reaction bottle is provided on one side of the first conduit. One end inside the reaction bottle is provided with an air extraction mechanism for extracting the gas inside the reaction bottle.

[0008] In a preferred embodiment, the conversion mechanism includes a communication box provided between the first conduit and the second conduit. One end of each of the first conduit and the second conduit penetrates through the side wall of the communication box and extends into the communication box. One end of the second conduit is communicated with a flexible hose. A driving plate is slidably connected to the side of the communication box close to the first conduit. One side of the driving plate penetrates through the side wall of the driving plate and is fixedly connected with a connecting pipe. One end of the flexible hose far from the second conduit is communicated with one end of the connecting pipe. A gas guide pipe is communicated with the side wall of the communication box at one end of the first conduit. The driving plate is located at the relative positions of the first conduit and the gas guide pipe. One side of the connecting pipe is horizontally rotatably connected with a screw rod. One end of the screw rod penetrates through the side wall of the communication box and is threadedly connected with the side wall of the communication box. A liquid inlet pipe is communicated with the top of the bottle cap above the liquid changing bottle.

[0009] In a preferred embodiment, sealing pads are fixedly connected to both ends of the driving plate. One side of each of the two sealing pads is slidably connected with the inner side wall of the communication box.

[0010] In a preferred embodiment, limit blocks are fixedly connected to the mutually remote ends of the two sealing pads. One side of each of the two limit blocks is in contact connection with both sides inside the communication box respectively.

[0011] In a preferred embodiment, second sealing gasket pads are embedded and fixedly connected to the relative positions of the connecting pipe on the side of the driving plate close to the gas guide pipe and the first conduit. First sealing gasket pads are embedded and fixedly connected to both sides of the inner side wall of the communication box at the first conduit and the gas guide pipe. One side of each of the second sealing gasket pads is in contact connection with one side of each of the two first sealing gasket pads respectively.

[0012] In a preferred embodiment, the mouth of the reaction bottle is communicated with one end of the gas guide pipe. The air extraction mechanism includes a piston slidably connected inside the reaction bottle. One side of the piston is horizontally fixedly connected with a pull rod. The end of the pull rod far from the piston extends to one side of the reaction bottle. A pH test paper is placed on the side close to the mouth of the reaction bottle inside the reaction bottle.

[0013] The technical effects and advantages of the present utility model:

[0014] 1. By providing a conversion mechanism, it is convenient to switch and communicate one end of the second conduit between the first conduit and the gas guide pipe, greatly improving the convenience of operation;

[0015] 2. By setting up an air extraction mechanism, it is convenient to make the gas in the liquid replacement bottle flow quickly into the reaction bottle, thereby accelerating the reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 It is a schematic diagram of the internal structure of the connection box of the present utility model.

[0018] Figure 3 It is a schematic diagram of the hose connection structure of the present utility model.

[0019] Figure 4 It is of the present utility model Figure 2 Schematic diagram of the enlarged structure at A.

[0020] The reference numerals are: 1. Collection bottle; 2. Liquid replacement bottle; 3. First conduit; 4. Second conduit; 5. Conversion mechanism; 6. Reaction bottle; 7. Air extraction mechanism; 8. Connection box; 9. Driving plate; 10. Connecting pipe; 11. Hose; 12. Air guide pipe; 13. Sealing cushion block; 14. Limiting block; 15. First sealing ring gasket; 16. Second sealing ring gasket; 17. PH test paper; 18. Piston; 19. Pull rod; 20. Liquid inlet pipe; 21. Screw; 22. Bottle cap. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] As shown in the attached Figures 1-4 A chemical reagent additive liquid replacement device includes: a collection bottle 1 and a liquid replacement bottle 2. Two bottle caps 22 are threadedly connected to the tops of the collection bottle 1 and the liquid replacement bottle 2. A first conduit 3 and a second conduit 4 are respectively communicated with the tops of the two bottle caps 22. A conversion mechanism 5 for converting the flow direction of the gas is provided between the first conduit 3 and the second conduit 4. A reaction bottle 6 is arranged on one side of the first conduit 3, and an air extraction mechanism 7 for pumping the gas in the reaction bottle 6 is arranged at one end inside the reaction bottle 6.

[0023] The conversion mechanism 5 includes a communication box 8 disposed between the first conduit 3 and the second conduit 4. One end of each of the first conduit 3 and the second conduit 4 penetrates the side wall of the communication box 8 and extends into the communication box 8. The flexible hose 11 is connected to one end of the second conduit 4. The driving plate 9 is slidably connected inside the communication box 8 on the side close to the first conduit 3. A connecting pipe 10 is fixedly connected to one side of the driving plate 9 through the side wall of the driving plate 9. One end of the flexible hose 11 away from the second conduit 4 is communicated with one end of the connecting pipe 10. The air guide pipe 12 is communicated with the side wall of the communication box 8 at one end of the first conduit 3. The driving plate 9 is located at the relative positions of the first conduit 3 and the air guide pipe 12. The screw rod 21 is horizontally rotatably connected to one side of the connecting pipe 10. One end of the screw rod 21 penetrates the side wall of the communication box 8 and is threadedly connected to the side wall of the communication box 8. The liquid inlet pipe 20 is communicated with the top of the bottle cap 22 above the liquid replacement bottle 2. Through the conversion mechanism 5, it is convenient to quickly switch the gas to enter the first conduit 3 or the air guide pipe 12, greatly improving the convenience of operation.

[0024] Two sealing pads 13 are respectively fixedly connected to both ends of the driving plate 9. One side of each of the two sealing pads 13 is slidably connected to the inner side wall of the communication box 8. Through the two sealing pads 13, it is convenient to respectively block one end of the first conduit 3 and one end of the air guide pipe 12 to prevent gas from entering their interiors when not in use.

[0025] Two limiting blocks 14 are respectively fixedly connected to the mutually remote ends of the two sealing pads 13. One side of each of the two limiting blocks 14 is in contact connection with both sides inside the communication box 8. Through the two limiting blocks 14, it is convenient to accurately fix the position of the connecting pipe 10 so that it can accurately align with the first conduit 3 or the air guide pipe 12.

[0026] The second sealing gasket 16 is embedded and fixedly connected to the side of the driving plate 9 close to the air guide pipe 12 and the first conduit 3 at the relative position of the connecting pipe 10. Two first sealing gaskets 15 are embedded and fixedly connected to the inner side wall of the communication box 8 respectively on one side of the first conduit 3 and the air guide pipe 12. One side of the second sealing gasket 16 is in contact connection with one side of each of the two first sealing gaskets 15. Through the contact connection of the second sealing gasket 16 with the corresponding first sealing gasket 15, it is convenient to improve the sealing performance of the connection between the connecting pipe 10 and the first conduit 3 or the air guide pipe 12.

[0027] The specific implementation method is as follows: By setting the conversion mechanism 5, it is convenient to switch and connect one end of the second conduit 4 between the first conduit 3 and the air guide pipe 12, greatly improving the convenience of operation.

[0028] As shown in the attached Figure 1 In the attached Figure 2A chemical reagent additive liquid replacement device shown in the figure. The mouth of the reaction flask 6 is connected to one end of the air duct 12. The air extraction mechanism 7 includes a piston 18 slidably connected inside the reaction flask 6. The extraction rod 19 is horizontally and fixedly connected to one side of the piston 18. The end of the extraction rod 19 away from the piston 18 extends to one side of the reaction flask 6. A pH test paper 17 is placed near the mouth of the reaction flask 6. By pulling the extraction rod 19 to drive the piston 18 to move, it is convenient to quickly introduce the gas in the liquid replacement bottle 2 into the reaction flask 6, improving the efficiency of gas detection.

[0029] The specific implementation method is as follows: By setting the air extraction mechanism 7, it is convenient to quickly flow the gas in the liquid replacement bottle 2 into the reaction flask 6, accelerating the reaction efficiency.

[0030] The working principle of the present utility model: When in use, first pour the liquid into the liquid replacement bottle 2 through the liquid inlet pipe 20. At this time, the liquid reacts in the liquid replacement bottle 2 and generates chlorine gas. Then the chlorine gas will enter the second conduit 4 and then be introduced into the first conduit 3 through the hose 11. The second sealing gasket 16 contacts and connects with the first sealing gasket 15 on one side of the first conduit 3, improving the sealing effect of the connection between the connecting pipe 10 and the first conduit 3. The gas entering the first conduit 3 flows into the collection bottle 1. There is clear water in the collection bottle 1. Then the chlorine gas will react with the clear water. At this time, when the chlorine gas contacts the clear water, hypochlorous acid and hydrogen chloride will be generated, and the hypochlorous acid and hydrogen chloride will dissolve in the water. In this way, the collection bottle 1 can well collect the harmful gas. After reacting for a certain period of time, rotate the screw rod 21 to make the connecting pipe 10 drive the driving plate 9 to move horizontally until the connecting pipe 10 on the driving plate 9 aligns with the air duct 12. At this time, the limiting block 14 on one side of one of the sealing pads 13 will contact and connect with the inner side wall of the communication box 8, facilitating the accurate alignment of the connecting pipe 10 with the air duct 12. Then the second sealing gasket 16 on one side of the driving plate 9 will contact and connect with the first sealing gasket 15 on one side of the air duct 12, improving the sealing performance of the connection between the connecting pipe 10 and the air duct 12. When the connecting pipe 10 is connected to the air duct 12, the other sealing pad 13 covers and seals one end of the first conduit 3. Then pull the extraction rod 19 to drive the piston 18 to move, pumping the air in the reaction flask 6 to generate negative pressure in the reaction flask 6. At this time, the gas in the liquid replacement bottle 2 will quickly enter the reaction flask 6 through the second conduit 4 and the hose 11. If there is still chlorine gas in the liquid replacement bottle 2, then the chlorine gas will contact the pH test paper 17 in the reaction flask 6, and the pH test paper 17 will change color. When the pH test paper 17 no longer changes color, it means that there is no longer chlorine gas in the liquid replacement bottle 2. At this time, the two bottle caps 22 can be opened, and then the interiors of the collection bottle 1 and the liquid replacement bottle 2 can be cleaned.

[0031] The following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative positional relationship. When the absolute position of the object being described changes, the relative positional relationship may change;

[0032] Second, in the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0033] Finally, the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A chemical reagent auxiliary liquid replacement device, comprising: A collecting bottle (1) and a liquid exchange bottle (2), characterized in that: the tops of the collecting bottle (1) and the liquid exchange bottle (2) are both threadedly connected with bottle caps (22), the tops of the two bottle caps (22) are respectively connected with a first conduit (3) and a second conduit (4), a conversion mechanism (5) for converting the flow direction of gas is provided between the first conduit (3) and the second conduit (4), a reaction bottle (6) is provided on one side of the first conduit (3), and a gas extraction mechanism (7) for extracting gas in the reaction bottle (6) is provided at one end thereof.

2. A chemical reagent auxiliary liquid replacement device according to claim 1, characterized in that: The conversion mechanism (5) comprises a connecting box (8) arranged between the No. 1 conduit (3) and the No. 2 conduit (4); one end of the No. 1 conduit (3) and the No. 2 conduit (4) penetrates through the side wall of the connecting box (8) and extends into the connecting box (8); one end of the No. 2 conduit (4) is connected to a hose (11); a driving plate (9) is slidably connected to one side of the connecting box (8) close to the No. 1 conduit (3); one side of the driving plate (9) penetrates through the side wall of the driving plate (9) and is fixedly connected to a connecting pipe (10); the hose (11) is away from the connecting box (8); One end of the No. 2 conduit (4) is connected to one end of the connecting tube (10); the side wall of the connecting box (8) is located at one end of the No. 1 conduit (3) and is connected to an air guide tube (12); the driving plate (9) is located at a relative position between the No. 1 conduit (3) and the air guide tube (12); one side of the connecting tube (10) is horizontally rotatably connected to a screw rod (21); one end of the screw rod (21) penetrates the side wall of the connecting box (8) and is threadedly connected to the side wall of the connecting box (8); and the top of the bottle cap (22) above the liquid exchange bottle (2) is connected to a liquid inlet tube (20).

3. A chemical reagent auxiliary liquid replacement device according to claim 2, characterized in that: Both ends of the driving plate (9) are fixedly connected to sealing gasket blocks (13), and one side of the two sealing gasket blocks (13) is slidably connected to the inner wall of the connecting box (8).

4. A chemical reagent auxiliary liquid replacement device according to claim 3, characterized in that: The ends of the two sealing gasket blocks (13) that are away from each other are fixedly connected to the limit blocks (14), and one side of the two limit blocks (14) is respectively in contact with the two sides of the connecting box (8).

5. A chemical reagent auxiliary liquid replacement device according to claim 2, characterized in that: The driving plate (9) is located near the airway tube (12) and the No. 1 conduit (3) and is fixedly connected to a No. 2 sealing ring gasket (16) at a position opposite to the connecting tube (10); the inner side wall of the connecting box (8) is located near the No. 1 conduit (3) and the airway tube (12) and is fixedly connected to a No. 1 sealing ring gasket (15); one side of the No. 2 sealing ring gasket (16) is in contact with one side of the two No. 1 sealing ring gaskets (15) respectively.

6. A chemical reagent auxiliary liquid replacement device according to claim 2, characterized in that: The mouth of the reaction bottle (6) is connected to one end of the air guide tube (12), and the air extraction mechanism (7) comprises a piston (18) slidably connected to the reaction bottle (6). A pull rod (19) is horizontally fixedly connected to one side of the piston (18), and the pull rod (19) extends toward one side of the reaction bottle (6) away from the end of the piston (18). A pH test paper (17) is placed in the reaction bottle (6) near the bottle mouth.

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