Liquid taking device and container for containing liquid
By designing a liquid collection device including an inflatable part and an air bag, physical isolation of the liquid and the environment is achieved, solving the problem of liquid chemicals being contaminated in a laboratory environment, reducing costs and improving the accuracy of experimental data.
Patent Information
- Application Number
- CN202422387787.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-09-27
AI Technical Summary
In laboratory environments, liquid chemicals are easily contaminated after opening the bottle cap multiple times, affecting product purity and the accuracy of experimental results. Existing technical solutions are costly or have limited effectiveness.
A liquid collection device is designed, including an inflatable part, an airbag and a liquid collection tube. The airbag is isolated from the outside world to achieve physical isolation of the liquid from the environment. The combined structure of the inflatable part and the airbag is used to collect the liquid to avoid contact with the outside air.
It achieves physical isolation between the liquid and the environment, avoids pollution, reduces the risk of liquid contamination, reduces waste costs and ensures the accuracy of experimental data.
Smart Images
Figure CN223324550U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of liquid reagent packaging equipment, and specifically relates to a liquid collection device and a container for holding liquid. Background Art
[0002] Currently, liquid reagents in laboratories are mostly packaged in glass bottles with plastic caps. To access the reagents, one generally needs to unscrew the cap, tilt the bottle, and pour the reagents directly out, or use a pipette. Laboratory air inevitably contains some chemicals, such as volatiles from various chemicals used in experiments and skincare products used by experimenters. Furthermore, some liquid chemicals are highly hygroscopic, and contact with air can affect product purity. Therefore, in a laboratory environment, the risk of contamination increases significantly after the caps of chemical reagent bottles are opened multiple times to access the reagents, potentially interfering with trace chemical analyses of certain daily chemical products.
[0003] To prevent liquid chemicals from being contaminated, existing technologies generally use the following three solutions:
[0004] One approach involves tightening the seal on opened reagents and using them up as quickly as possible, such as using small or aliquoted reagents, storing opened reagents in well-sealed containers, or performing a secondary seal on opened reagents. This approach cannot prevent reagent contamination and provides no direct indication of contamination.
[0005] The second is to improve the experimental equipment conditions, such as using dust-free workbenches, dedicated storage cabinets, inert gas protection, etc. This solution will increase the equipment cost of the laboratory.
[0006] The third approach is to conduct a blank control experiment. To prevent laboratory factors from influencing the experimental results, a blank test is performed on the chemicals used before the formal experiment to confirm the absence of interference. With this approach, a single blank test cannot guarantee the absence of interference from potential interfering substances in the laboratory environment.
[0007] Therefore, the present application proposes a liquid collection device and a container for holding liquid, so that the liquid in the container can be isolated from the external environment, thereby preventing the external environment from contaminating the liquid in the container from the source. Utility Model Content
[0008] In view of the above-mentioned shortcomings or deficiencies of the prior art, the technical problem to be solved by the present application is to provide a liquid collection device and a container for holding liquid.
[0009] To solve the above technical problems, this application is implemented through the following technical solutions:
[0010] The present application proposes a liquid collection device, including: an inflatable part, an airbag, a first liquid collection tube and a covering assembly, the inflatable part and the airbag are connected to each other through a first air inlet pipe, the first liquid collection tube and the first air inlet pipe pass through the covering assembly, the first end of the first liquid collection tube and the inflatable part are arranged on the first side of the covering assembly, and the second end of the first liquid collection tube and the airbag are arranged on the second side of the covering assembly.
[0011] Optionally, the above-mentioned liquid collection device, wherein the covering assembly includes: a cover body and a first cover plate, the cover body is detachably connected to the first cover plate, and the first liquid collection tube and the first air intake pipe pass through the cover body; or, the covering assembly includes: a cover body and a second cover plate, the cover body is detachably connected to the second cover plate, and the first liquid collection tube and the first air intake pipe pass through the cover body; a through hole for the second liquid collection tube and the second air intake pipe to pass through is provided on the second cover plate, the second liquid collection tube is connected to the first liquid collection tube, and the second air intake pipe is connected to the first air intake pipe and the inflatable member.
[0012] Optionally, in the above-mentioned liquid collection device, the airbag is provided with a through hole for the first liquid collection tube to pass through.
[0013] Optionally, in the above-mentioned liquid extraction device, the cover body and the first cover plate are provided with a fool-proof structure; or the cover body and the second cover plate are provided with a fool-proof structure.
[0014] Optionally, in the above-mentioned liquid extraction device, the cover body is snap-connected with the second cover plate.
[0015] Optionally, in the above-mentioned liquid collection device, a one-way valve is provided in the first air inlet pipe and / or the first liquid collection pipe.
[0016] Optionally, in the above-mentioned liquid collection device, the first air inlet pipe and / or the first liquid collection pipe are both provided with a rotary switch.
[0017] Optionally, in the above-mentioned liquid collection device, the first air inlet pipe and the second air inlet pipe are connected via a quick connector; and / or the first liquid collection pipe and the second liquid collection pipe are connected via a quick connector.
[0018] Optionally, in the above-mentioned liquid extraction device, the inflatable component includes: an air pump or an air pump.
[0019] On the other hand, the present application also proposes a container for holding liquid, including the liquid extraction device.
[0020] Compared with the existing technology, this application has the following technical effects:
[0021] The present application has a simple structure, low cost and is easy to use. It not only achieves physical isolation between the liquid being taken out and the ambient air, but also achieves physical isolation between the liquid remaining in the container and the ambient air, avoiding the risk of the liquid being contaminated when exposed to the laboratory air environment, reducing the cost of discarding the contaminated liquid, and providing a basic guarantee for the accuracy of experimental data analysis. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:
[0023] Figure 1 : A schematic structural diagram of Example 1 of the present application;
[0024] Figure 2 :like Figure 1 a front view of the structure shown;
[0025] Figure 3 :like Figure 2 a cross-sectional view of the structure shown;
[0026] Figure 4 :like Figure 1 a side view of the structure shown;
[0027] Figure 5 :like Figure 2 a top view of the structure shown;
[0028] Figure 6 : Explosion diagram of Example 2 of the present application;
[0029] Figure 7 : Explosion diagram of Example 3 of the present application;
[0030] In the figure: inflatable part 1, first air inlet pipe 2, first liquid collection pipe 3, cover assembly 4, cover body 41, first cover plate 42, second cover plate 43, accommodating cavity 44, first groove 45, first protrusion 46, second protrusion 47, opening part 48, airbag 5, second air inlet pipe 6, second liquid collection pipe 7, rotary switch 8, container 9, opening and closing switch 10. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0032] Example 1
[0033] like Figures 1 to 5 As shown, one of the embodiments of the present application is a liquid collection device, including: an inflatable member 1, an airbag 5, a first liquid collection tube 3 and a covering assembly 4, the inflatable member 1 is connected to the airbag 5 through a first air inlet pipe 2, the first liquid collection tube 3 and the first air inlet pipe 2 pass through the covering assembly 4, the first end of the first liquid collection tube 3 and the inflatable member 1 are arranged on the first side of the covering assembly 4, and the second end of the first liquid collection tube 3 and the airbag 5 are arranged on the second side of the covering assembly 4.
[0034] In this embodiment, the inflatable part 1 is connected to the first air inlet pipe 2, the first air inlet pipe 2 passes through the cover assembly 4 and is respectively connected to the airbag 5 and the inflatable part 1 at both ends; the first liquid collection tube 3 passes through the cover assembly 4, wherein the first end of the first liquid collection tube 3 and the inflatable part 1 are arranged on the first side of the cover assembly 4, the airbag 5 and the second end of the first liquid collection tube 3 are arranged on the second side of the cover assembly 4, and the cover assembly 4 can be connected to the container 9 described below, the first side is the outside of the cover assembly 4, and the second side is the inside of the cover assembly 4, and the airbag 5 and the second end of the first liquid collection tube 3 are arranged inside the container 9 described below.
[0035] The use process of the liquid taking device of this embodiment is as follows:
[0036] After the liquid collection device is mounted on the container 9, the inflator 1 is activated to inflate the airbag 5. After the air is admitted, the airbag 5 expands from the second side of the cover assembly 4 in a direction away from the cover assembly 4. During the expansion process, the airbag 5 squeezes the liquid in the container 9. The squeezed liquid flows out along the second end of the first liquid collection tube 3 toward the first end of the first liquid collection tube 3, thereby completing the liquid collection. Those skilled in the art may connect the first end of the first liquid collection tube 3 to another container 9 for liquid, etc., depending on actual usage.
[0037] This embodiment has a simple structure, low cost, and is easy to use. It not only achieves physical isolation between the liquid being taken out and the ambient air, but also achieves physical isolation between the liquid remaining in the container 9 and the ambient air, avoiding the risk of the liquid being contaminated when exposed to the laboratory air environment, reducing the cost of discarding the contaminated liquid, and providing a basic guarantee for the accuracy of experimental data analysis.
[0038] Preferably, a through hole is provided on the airbag 5, which passes through the airbag 5. The aperture of the through hole matches the first liquid collection tube 3, so as to facilitate the first liquid collection tube 3 to pass through the airbag 5, thereby avoiding the mutual influence between the airbag 5 and the first liquid collection tube 3 during the inflation process, thereby ensuring that the expansion of the airbag 5 can naturally unfold along the radial and axial directions of the airbag 5, and better fit with the inner surface of the container 9; the airbag 5 can be made of a material with high corrosion resistance, high pressure resistance and high elasticity.
[0039] Optionally, in this embodiment, a one-way valve (not shown in the figure) is further provided in the first air inlet pipe 2, so that the gas in the first air inlet pipe 2 can only enter the airbag 5. Similarly, a one-way valve (not shown in the figure) is provided in the first liquid collection pipe 3, so that the liquid in the first liquid collection pipe 3 can only flow from the container 9 into the first liquid collection pipe 3, thereby ensuring the uniform and stable liquid discharge from the first liquid collection pipe 3; of course, those skilled in the art can choose to set a one-way valve between the first air inlet pipe 2 and the first liquid collection pipe 3 as needed.
[0040] Optionally, a rotary switch 8 can be set on both the first air inlet pipe 2 and the first liquid collection pipe 3, so that the liquid in the container 9 can be better prevented from overflowing or being contaminated during transportation or when stationary; of course, those skilled in the art can choose to set the rotary switch 8 between the first air inlet pipe 2 and the first liquid collection pipe 3 as needed.
[0041] In this embodiment, the inflatable member 1 can be a device with an inflating function such as an air pump or an air pump. The inflatable member 1 is the air source for inflating the airbag 5 and is also the source of kinetic energy of the liquid extraction device.
[0042] Example 2
[0043] like Figure 6 As shown, compared with Example 1, the cover assembly 4 of this embodiment includes: a cover body 41 and a first cover plate 42, the cover body 41 and the first cover plate 42 are detachably connected, and the first liquid extraction pipe 3 and the first air inlet pipe 2 pass through the cover body 41.
[0044] The difference between this embodiment and embodiment 1 is that a detachably connected first cover plate 42 is provided on the cover body 41 .
[0045] A receiving cavity 44 is defined in the middle of the top surface of the cover 41. A first cover plate 42 is configured to mate with the receiving cavity 44 of the cover 41. A foolproof structure is provided between the cover 41 and the first cover plate 42. Specifically, in this embodiment, the cover 41 is provided with a first groove 45, and the first cover plate 42 is provided with a first protrusion 46 that mates with the first groove 45. The first groove 45 and the first protrusion 46 implement a foolproof function, ensuring that the cover 41 and the first cover plate 42 can be closed smoothly.
[0046] The first cover plate 42 can protect the first air inlet pipe 2 and the first liquid extraction pipe 3 to prevent the first air inlet pipe 2 and the first liquid extraction pipe 3 from being damaged due to bumps during transportation.
[0047] Optionally, an opening portion 48 is further provided on the first cover plate 42 to facilitate separation of the first cover plate 42 from the cover body 41 .
[0048] The liquid collection process of this embodiment is as follows: first, the first cover plate 42 is removed from the cover body 41; second, the inflatable member 1 is connected to the first air inlet pipe 2, and the subsequent liquid collection process is the same as that of Example 1.
[0049] Example 3
[0050] like Figure 7 As shown, compared with Example 1, the cover assembly 4 of this embodiment includes: a cover body 41 and a second cover plate 43, the cover body 41 and the second cover plate 43 are detachably connected, the first liquid collection pipe 3 and the first air intake pipe 2 pass through the cover body 41; the second cover plate 43 is provided with a through hole for the second liquid collection pipe 7 and the second air intake pipe 6 to pass through, the second liquid collection pipe 7 is connected to the first liquid collection pipe 3, and the second air intake pipe 6 is connected to the first air intake pipe 2 and the inflatable member 1.
[0051] The difference between this embodiment and the first embodiment is that a detachably connected second cover plate 43 is provided on the cover body 41 .
[0052] The cover 41 is the same as that in the second embodiment.
[0053] The second cover plate 43 is provided with through holes for the second liquid pipe 7 and the second air intake pipe 6 to pass through; the second liquid pipe 7 is connected to the first liquid pipe 3, and one end of the second air intake pipe 6 is connected to the first air intake pipe 2 and the other end is connected to the inflatable member 1.
[0054] The second cover plate 43 is matched with the accommodating cavity 44 of the cover body 41. The second cover plate 43 is provided with a second protrusion 47, which cooperates with the first groove 45 on the cover body 41 to achieve an anti-fouling function and ensure that the second cover plate 43 and the cover body 41 are smoothly covered.
[0055] The liquid collection process of this embodiment is as follows: connect the second air inlet pipe 6 to the first air inlet pipe 2, the second liquid collection pipe 7 to the first liquid collection pipe 3, and cover the second cover plate 43 with the cover body 41. The subsequent liquid collection process is the same as that of embodiment 1.
[0056] Optionally, the cover body 41 is snap-connected with the second cover plate 43. Specifically, a snap fastener that cooperates with the second cover plate 43 is provided on the side of the cover body 41 to ensure that the cover body 41 is tightly connected to the second cover plate 43, so as to avoid loosening of the connection between the first air intake pipe 2 and the second air intake pipe 6, or loosening of the connection between the first liquid collection pipe 3 and the second liquid collection pipe 7, etc. due to relative displacement between the cover body 41 and the second cover plate 43.
[0057] Optionally, the first air intake pipe 2 and the second air intake pipe 6 are connected by a quick connector; the quick connector includes but is not limited to an air quick connector or a special quick connector; the air quick connector can ensure the air tightness and pressure resistance at the interface between the first air intake pipe 2 and the second air intake pipe 6; the special quick connector can prevent the erosion of corrosive liquids at the interface between the first liquid collection pipe 3 and the second liquid collection pipe 7.
[0058] Optionally, the second liquid extraction tube 7 forms a bend less than 90° during use, and an on-off switch 10 is provided near the bend. This design takes into account that after the on-off switch 10 is closed, the liquid on the side of the on-off switch 10 away from the container 9 can flow out naturally due to gravity, and the liquid on the side of the on-off switch 10 close to the container 9 is sealed to avoid contamination.
[0059] In the present application, the first liquid extraction tube 3 and the air bag 5 can be adaptively selected to have matching specifications according to different specifications of the container 9 .
[0060] On the other hand, the present application further proposes a container 9 for holding liquid, including the liquid extraction device.
[0061] Optionally, the liquid container 9 and the liquid extraction device may be threadedly connected or snap-connected.
[0062] In the description of this application, unless otherwise expressly specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.
[0063] In the description of this embodiment, the terms "first" and "second" are only used to distinguish in the description and have no special meanings.
[0064] The above embodiments are intended only to illustrate the technical solutions of the present application and are not intended to limit the present application. The present application is described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application and should be included within the scope of the claims of the present application.
Claims
1. A liquid extraction device, characterized in that: include: An inflatable member, an airbag, a first liquid collection tube and a covering assembly, wherein the inflatable member is connected to the airbag via a first air inlet pipe, the first liquid collection tube and the first air inlet pipe pass through the covering assembly, the first end of the first liquid collection tube and the inflatable member are arranged on a first side of the covering assembly, and the second end of the first liquid collection tube and the airbag are arranged on a second side of the covering assembly.
2. The liquid extraction device according to claim 1, characterized in that: The cover assembly includes: a cover body and a first cover plate, the cover body and the first cover plate are detachably connected, and the first liquid extraction pipe and the first air inlet pipe pass through the cover body; Alternatively, the covering assembly includes: a cover body and a second cover plate, the cover body and the second cover plate are detachably connected, the first liquid collection tube and the first air intake pipe pass through the cover body; the second cover plate is provided with a through hole for the second liquid collection tube and the second air intake pipe to pass through, the second liquid collection tube is connected to the first liquid collection tube, and the second air intake pipe is connected to the first air intake pipe and the inflatable member.
3. The liquid extraction device according to claim 1 or 2, characterized in that: The air bag is provided with a through hole for the first liquid collection tube to pass through.
4. The liquid extraction device according to claim 2, characterized in that: The cover body and the first cover plate are provided with a fool-proof structure; or the cover body and the second cover plate are provided with a fool-proof structure.
5. The liquid extraction device according to claim 2, characterized in that: The cover body is clamped with the second cover plate.
6. The liquid extraction device according to claim 1 or 2, characterized in that: A one-way valve is provided in the first air inlet pipe and / or the first liquid extraction pipe.
7. The liquid extraction device according to claim 1 or 2, characterized in that: The first air inlet pipe and / or the first liquid extraction pipe are both provided with a rotary switch.
8. The liquid extraction device according to claim 2, characterized in that: The first air inlet pipe and the second air inlet pipe are connected via a quick connector; And / or, the first liquid collection tube and the second liquid collection tube are connected via a quick connector.
9. The liquid extraction device according to claim 1 or 2, characterized in that: The inflatable component includes: an air pump or an air pump.
10. A container for holding liquid, characterized in that: The liquid extraction device comprises the liquid extraction device according to any one of claims 1 to 9.