Liquid sampling device
This liquid sampling device, based on the principle of air pressure, utilizes a pressurized bulb and a storage bulb to achieve efficient liquid sampling without opening the reaction flask. This solves the problems of cumbersome sampling operations and evaporation in the laboratory, and improves experimental efficiency.
Patent Information
- Application Number
- CN202423154384.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-02-05
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Liquid sampling in the laboratory is cumbersome, difficult to control the sample volume, and can easily lead to volatilization or termination of the reaction, affecting the progress of the experiment.
The liquid sampling device, which uses the principle of pneumatic pressure, inflates the storage balloon with a pressure bulb. The gas enters the reaction bottle to achieve liquid sampling. The inner tube design ensures that the liquid flows out, and the sealing plug prevents evaporation.
It enables efficient continuous sampling without opening reaction flasks or disassembling devices, simplifies liquid volume control and prevents evaporation, thus improving experimental efficiency.
Smart Images
Figure CN223815261U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to laboratory liquid sampling instrument technical field, concretely relates to a liquid sampling device. BACKGROUND
[0002] When synthesizing and compounding in the laboratory, sampling detection is often needed in the middle of the experiment. The conventional operation is to open the sampling port of the reaction container, use a glass dropper to sample, or disassemble the reaction container to pour out the liquid material for sampling.
[0003] However, the glass dropper is not easy to control the sampling amount, and the reaction container needs to be in an open state for a long time during sampling, and the liquid material is easy to evaporate from the sampling port. If the reaction device is disassembled to sample, the reaction needs to be terminated. In summary, the sampling process is complicated, time-consuming and laborious, and the experiment progress is slow.
[0004] Therefore, the prior art needs to be further developed. UTILITY MODEL CONTENT
[0005] The utility model aims at overcoming the above technical defects, providing a liquid sampling device to solve the technical problem that the sampling operation of the reaction liquid in the related art is not easy to control.
[0006] To achieve the above technical purpose, the utility model adopts the following technical scheme: a liquid sampling device is provided, which comprises: a pressurizing ball for pressurizing the reaction bottle by inflating; a gas storage balloon connected with the pressurizing ball, used for storing gas; an outer tube connected with the gas storage balloon, one end of the outer tube being a closed end, the gas entering the outer tube being sealed at the closed end, the other end of the outer tube being a gas inlet end, the gas entering the reaction bottle from the gas inlet end; an inner tube provided with a liquid outlet, the liquid outlet being in communication with the inside of the reaction bottle, the inner tube being arranged in the outer tube, one end of the inner tube extending into the reaction bottle, the other end of the inner tube passing through the outer tube to the outside of the outer tube; the distance from the gas inlet end to the bottom of the reaction bottle being greater than the distance from the end of the inner tube to the bottom of the reaction bottle, so that the end of the inner tube is below the liquid level of the reaction liquid and the gas inlet end is above the liquid level of the reaction liquid.
[0007] Further, the liquid sampling device further comprises a communication tube, one end of the communication tube being connected with the gas storage balloon, the other end of the communication tube being connected with the outer tube, a first valve being arranged on the communication tube, the first valve being used for communicating or closing the gas storage balloon and the outer tube.
[0008] Further, the liquid sampling device further comprises an exhaust pipe connected with the communication tube, the exhaust pipe being used for exhausting the gas in the outer tube and the gas storage balloon, a second valve being arranged on the exhaust pipe, the second valve being used for opening or closing the exhaust pipe.
[0009] Further, the outer tube comprises a first outer tube and a second outer tube, the communication tube is connected with the first outer tube, one end of the first outer tube is connected with the reaction bottle, the other end of the first outer tube is connected with the second outer tube, and the closed end is arranged on the second outer tube.
[0010] Further, the inner tube comprises a first inner tube, a second inner tube and a third inner tube, the first inner tube, the second inner tube and the third inner tube are connected in sequence, the first inner tube is arranged in the first outer tube, the second inner tube is arranged in the second outer tube, the liquid outlet is arranged on the third inner tube, and the third inner tube penetrates through the second outer tube so that the liquid outlet is exposed.
[0011] Further, the second outer tube is arranged on the side of the first outer tube away from the communication tube.
[0012] Further, the second outer tube supports the second inner tube, and an included angle exists between the second outer tube and the first outer tube.
[0013] Further, the included angle is an acute angle, so that the second inner tube is in an inclined state.
[0014] Further, the third inner tube is parallel to the first outer tube.
[0015] Further, the liquid sampling device further comprises a sealing plug, and the sealing plug penetrates through the first outer tube to seal the reaction bottle.
[0016] Beneficial effects:
[0017] 1. The liquid sampling device of the utility model realizes continuous sampling simply and efficiently without opening the sampling port of the reaction bottle and disassembling the reaction device by utilizing the principle of air pressure.
[0018] 2. The liquid sampling device of the utility model, the second inner tube is in an inclined state, which is beneficial to the outflow of the liquid in the reaction bottle.
[0019] 3. The liquid sampling device of the utility model, the sealing plug is used to seal the sampling port of the reaction bottle, so that the liquid material is prevented from volatilizing from the sampling port. DRAWINGS
[0020] Figure 1 is a structural schematic view of the liquid sampling device adopted by the utility model embodiment;
[0021] Figure 2 is a structural schematic view of the outer tube and the inner tube of the liquid sampling device adopted by the utility model embodiment.
[0022] Among them, the above drawings include the following reference signs:
[0023] 1, pressurizing ball; 11, breathing valve; 2, gas storage ball; 3, outer tube; 31, closed end; 32, gas inlet end; 33, first outer tube; 34, second outer tube; 4, inner tube; 41, liquid outlet; 42, first inner tube; 43, second inner tube; 44, third inner tube; 5, reaction bottle; 6, connecting tube; 61, first valve; 7, exhaust pipe; 71, second valve; 8, sealing plug; 9, hose. DETAILED DESCRIPTION
[0024] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.
[0025] According to the embodiment of the utility model, a kind of liquid sampling device is provided, please refer to Figures 1 to 2 , including: pressurizing ball 1, pressurizing ball 1 is used to inflate pressurization in reaction bottle 5;Gas storage ball 2, gas storage ball 2 is connected with pressurizing ball 1, and gas storage ball 2 is used to store gas;Outer tube 3, outer tube 3 is connected with gas storage ball 2, and one end of outer tube 3 is closed end 31, gas enters outer tube 3 and is sealed in closed end 31, and one end of outer tube 3 is gas inlet end 32, and gas enters reaction bottle 5 from gas inlet end 32;Inner tube 4, inner tube 4 is provided with liquid outlet 41, and liquid outlet 41 is communicated with the inside of reaction bottle 5, and inner tube 4 is arranged in outer tube 3, and one end of inner tube 4 extends to reaction bottle 5, and the other end of inner tube 4 passes through outer tube 3 and leads to the outside of outer tube 3;The distance from gas inlet end 32 to the bottom of reaction bottle 5 is greater than the distance from the end of inner tube 4 to the bottom of reaction bottle 5, so that the end of inner tube 4 is located below the liquid level of reaction liquid, and gas inlet end 32 is located above the liquid level of reaction liquid.The liquid sampling device of the present application adopts gas pressure balance principle, pressurizing ball 1 first stores gas in gas storage ball 2, when the amount of gas is enough, the gas in gas storage ball 2 is squeezed to outer tube 3 communicated with gas storage ball 2, because the closed end 31 of outer tube 3 is sealed, gas can only enter reaction bottle 5 along the other end gas inlet end 32, with the entering of gas in reaction bottle 5, the pressure increases, in order to achieve the pressure balance between inside and outside of bottle, the reaction liquid in reaction bottle 5 flows out from inner tube 4, thereby realizing liquid sampling operation.The device utilizes gas pressure principle, without opening the sampling port of reaction bottle 5, and without disassembling reaction device, a certain amount of gas is introduced into reaction bottle 5, and the volume of required reaction liquid can be obtained, and the amount of obtained liquid is easy to control.The liquid sampling device of the present embodiment solves the technical problem that the sampling operation of reaction liquid in experimental process in the related art is not easy to control.
[0026] Specifically, the pressurizing ball 1 cooperates with the breathing valve 11, and air is continuously fed into the hose 9 by manually pressing the pressurizing ball 1, the pressurizing ball 1 is connected with the air reservoir 2 through the hose 9, the air reservoir 2 not only stores gas but also plays a buffering role to prevent the liquid in the reaction bottle 5 from flowing out due to excessive force.
[0027] Referring to Figure 1 and Figure 2 In the liquid sampling device of the embodiment, the liquid sampling device further comprises a communication pipe 6, one end of the communication pipe 6 is connected with the air reservoir 2, the other end of the communication pipe 6 is connected with the outer pipe 3, and a first valve 61 is arranged on the communication pipe 6, the first valve 61 is used to communicate or close the air reservoir 2 and the outer pipe 3. The communication pipe 6 is arranged between the outer pipe 3 and the air reservoir 2, the first valve 61 is arranged on the communication pipe 6, and the opening and closing of the first valve 61 controls the gas to enter the outer pipe 3, further limits the condition for the liquid to flow out, and realizes accurate sampling.
[0028] Referring to Figure 1 and Figure 2 In the liquid sampling device of the embodiment, the liquid sampling device further comprises an exhaust pipe 7, the exhaust pipe 7 is connected with the communication pipe 6, the exhaust pipe 7 is used to exhaust the gas in the outer pipe 3 and the air reservoir 2, a second valve 71 is arranged on the exhaust pipe 7, and the second valve 71 is used to open or close the exhaust pipe 7. The communication pipe 6 is connected with the exhaust pipe 7, the second valve 71 opens or closes the exhaust pipe 7, so that the atmospheric pressure is communicated. The exhaust pipe 7 and the second valve 71 are arranged to adjust the gas entering the outer pipe 3.
[0029] Referring to Figure 2 In the liquid sampling device of the embodiment, the outer pipe 3 comprises a first outer pipe 33 and a second outer pipe 34, the communication pipe 6 is connected with the first outer pipe 33, one end of the first outer pipe 33 is connected with the reaction bottle 5, the other end of the first outer pipe 33 is connected with the second outer pipe 34, and the closed end 31 is arranged on the second outer pipe 34. The outer pipe 3 comprises two pipe sections, the gas inlet end 32 is arranged on the first outer pipe 33 and connected with the communication pipe 6, and the closed end 31 is arranged on the second outer pipe 34.
[0030] Referring to Figure 2 In the liquid sampling device of the embodiment, the inner pipe 4 comprises a first inner pipe 42, a second inner pipe 43 and a third inner pipe 44, the first inner pipe 42, the second inner pipe 43 and the third inner pipe 44 are connected in sequence, the first inner pipe 42 is arranged in the first outer pipe 33, the second inner pipe 43 is arranged in the second outer pipe 34, the liquid outlet 41 is arranged on the third inner pipe 44, and the third inner pipe 44 penetrates through the second outer pipe 34 so that the liquid outlet 41 is exposed. The first inner pipe 42 of the inner pipe 4 is used to draw out the liquid, the second inner pipe 43 is arranged in the second outer pipe 34 and used to flow the drawn-out liquid, the third inner pipe 44 is arranged outside the outer pipe 3, the liquid outlet 41 is arranged on the third inner pipe 44, and the liquid outlet 41 is used to discharge the liquid.
[0031] Referring to Figure 1 and Figure 2 In the liquid sampling device of the embodiment, the second outer tube 34 is arranged at the side of the first outer tube 33 away from the communicating tube 6. The first outer tube 33 is connected with the communicating tube 6 at one side and connected with the second outer tube 34 at the other side. The space on both sides is fully utilized. The pressing gas storage operation is completed at the left side of the device, and the liquid sampling operation is completed at the right side of the device, so that the function partition is realized.
[0032] Referring to Figure 1 and Figure 2 In the liquid sampling device of the embodiment, the second outer tube 34 supports the second inner tube 43, and there is an included angle between the second outer tube 34 and the first outer tube 33. The second outer tube 34 supports the second inner tube 43, so that there is an included angle between the first inner tube 42 and the second inner tube 43.
[0033] Referring to Figure 1 and Figure 2 In the liquid sampling device of the embodiment, the included angle is an acute angle, so that the second inner tube 43 is in an inclined state. The gas pressed out from the first inner tube 42 flows from the inclined second inner tube 43 to the third inner tube 44 under the action of gravity, and finally flows out from the liquid outlet 41. The extension direction of the third inner tube 44 is arranged vertically, which is beneficial to the liquid flowing out from the liquid outlet 41.
[0034] Referring to Figure 1 and Figure 2 In the liquid sampling device of the embodiment, the third inner tube 44 is parallel to the first outer tube 33, so that the liquid flows out vertically to the horizontal plane.
[0035] Referring to Figure 1 In the liquid sampling device of the embodiment, the liquid sampling device further comprises a sealing plug 8, which seals the reaction bottle 5 through the first outer tube 33. When the liquid is taken, the opening of the reaction bottle 5 is quickly opened, and then the bottle opening is immediately sealed with the sealing plug 8 to prevent the liquid from volatilizing.
[0036] In the liquid sampling device of the embodiment, the gas inlet end 32 of the outer tube 3 is inserted into the reaction bottle 5 and placed above the liquid surface, the end of the inner tube 4 in the outer tube 3 is placed below the liquid surface, and the sealing plug 8 is fixed and sealed with the sampling opening of the reaction bottle 5. By manually pressing the pressurizing ball 1, air is continuously conveyed into the hose 9, and then the gas storage ball 2 plays a role of buffering and storing gas. Then, the first valve 61 is opened, the second valve 71 is closed, the gas flows to the gas inlet end 32 of the outer tube 3 through the communicating tube 6, and then the liquid in the reaction bottle 5 flows out from the liquid outlet 41 under the action of gas pressure. In the liquid sampling device of the embodiment, the outer tube 3 is sleeved outside the inner tube 4, and the experimenter can operate by contacting the outer tube 3, which can prevent the inner tube 4 from being scalded by high-temperature liquid.
[0037] It should be noted that the terms "first", "second" and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. It is to be understood that the use of these terms is arbitrary apart from their definition in the specification or by understanding that the use of these terms in the present description is solely for the purpose of nomenclature and does not in any way limit the scope of the application. Furthermore, the terms "comprise", "to comprise", "comprising", "include", "to include", "including" and the like are used herein to whether directly or indirectly comply with a number of elements, including a number of steps, operations, elements, units and / or the like. Not all the components or steps are mandatory and some can be substituted for other, equivalent components or steps, the inverse being possible.
[0038] Optionally, the specific examples in the embodiments can refer to the examples described in the above embodiments, and the embodiments will not be repeated here.
[0039] The serial numbers of the above embodiments of the present application are only for description, not representing the advantages and disadvantages of the embodiments.
[0040] In the above embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.
[0041] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.
Claims
1. A liquid sampling device, characterized by, The liquid sampling device comprises: a pressurizing ball (1) for pressurizing the reaction bottle (5) with gas; a gas storage ball (2) connected with the pressurizing ball (1), for storing gas; an outer tube (3) connected with the gas storage ball (2), one end of the outer tube (3) being a closed end (31) where gas enters the outer tube (3) and is sealed, the other end of the outer tube (3) being a gas inlet end (32) where gas enters the reaction bottle (5); an inner tube (4) provided with a liquid outlet (41) communicating with the inside of the reaction bottle (5), the inner tube (4) being arranged in the outer tube (3), one end of the inner tube (4) extending into the reaction bottle (5), the other end of the inner tube (4) passing through the outer tube (3) to the outside of the outer tube (3); the distance from the gas inlet end (32) to the bottom of the reaction bottle (5) is greater than the distance from the end of the inner tube (4) to the bottom of the reaction bottle (5), so that the end of the inner tube (4) is below the liquid level of the reaction liquid and the gas inlet end (32) is above the liquid level of the reaction liquid.
2. The liquid sampling device of claim 1, wherein, The liquid sampling device further comprises a communication tube (6), one end of the communication tube (6) being connected with the gas storage ball (2), the other end of the communication tube (6) being connected with the outer tube (3), the communication tube (6) being provided with a first valve (61) for communicating or closing the gas storage ball (2) and the outer tube (3).
3. The liquid sampling device of claim 2, wherein, The liquid sampling device further comprises an exhaust tube (7) connected with the communication tube (6), the exhaust tube (7) being used for exhausting gas in the outer tube (3) and the gas storage ball (2), the exhaust tube (7) being provided with a second valve (71) for opening or closing the exhaust tube (7).
4. The liquid sampling device of claim 2, wherein, The outer tube (3) comprises a first outer tube (33) and a second outer tube (34), the communication tube (6) being connected with the first outer tube (33), one end of the first outer tube (33) being connected with the reaction bottle (5), the other end of the first outer tube (33) being connected with the second outer tube (34), the closed end (31) being arranged on the second outer tube (34).
5. The liquid sampling device of claim 4, wherein, The inner tube (4) comprises a first inner tube (42), a second inner tube (43) and a third inner tube (44), the first inner tube (42), the second inner tube (43) and the third inner tube (44) being connected in sequence, the first inner tube (42) being arranged in the first outer tube (33), the second inner tube (43) being arranged in the second outer tube (34), the liquid outlet (41) being arranged on the third inner tube (44), the third inner tube (44) passing through the second outer tube (34) so that the liquid outlet (41) is exposed.
6. The liquid sampling device of claim 5, wherein, The second outer tube (34) is arranged on the side of the first outer tube (33) away from the communication tube (6).
7. The liquid sampling device of claim 6, wherein, The second outer tube (34) supports the second inner tube (43), and the second outer tube (34) and the first outer tube (33) form an included angle.
8. The liquid sampling device of claim 7, wherein, The included angle is an acute angle, so that the second inner tube (43) is in an inclined state.
9. The liquid sampling device of claim 8, wherein, The third inner tube (44) is parallel to the first outer tube (33).
10. The liquid sampling device of claim 4, wherein, The liquid sampling device further comprises a sealing plug (8) which seals the reaction bottle (5) through the first outer tube (33).