Adjustable manual single-channel adjustable pipettor
By introducing the rotary ring, chute and elastic structure into the pipette, the problems of inconvenience in disassembly and poor sealing caused by traditional screw fixing are solved, and rapid fixation and efficient liquid extraction are achieved, which improves the convenience and accuracy of the experiment .
Patent Information
- Application Number
- CN202420964571.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-07
AI Technical Summary
In the experiment, existing pipettes are inconvenient to disassemble and clean due to screw fixation, and have poor sealing properties and are prone to leaking, which affects the accuracy of liquid extraction.
An adjustable manual single-channel adjustable pipette is designed, which uses a rotary ring and chute structure for quick fixing and adjustment. Combining the elastic structure and limiting plate to ensure sealing, avoiding the inconvenience caused by traditional screw fixing and Air leakage problem.
It realizes the functions of rapid fixing and disassembly, improves the convenience of the pipette and sealing effect, avoids liquid leakage, and simplifies the cleaning process.
Smart Images
Figure CN222219628U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chemical reagent detection, in particular to an adjustable manual single-channel adjustable pipette. Background Art
[0002] Chemical reagent testing generally requires a liquid extraction device, a beaker, an alcohol stove, etc. The existing pipette relies entirely on manual control to perform quantitative aspiration when aspirating liquid. When the aspiration value is about to be reached, the tube is squeezed to extract, and it needs to be cleaned at the end of the experiment. Traditional liquid extraction devices are provided with two types: a cannula press and a squeeze tube.
[0003] Pipettes are often used for temporary transfer of liquids in industry and scientific experiments. The liquid to be transferred is usually extracted with manual assistance. Since there is shaking when manually extracting liquid, if the internal extrusion rod is tilted, it is not conducive to extracting the liquid. The common two-section liquid extraction device is fixed by movement, which makes it easy to tilt and damage, and the sealing is poor. The top is fixed with screws, which is not convenient for movable fixation and installation.
[0004] In the process of realizing the utility model, the inventors found that the prior art had the following problems: 1. In order to accurately extract water sources and mix experimental data during experiments, a manual single-channel adjustable pipette is used for adjustment. Generally, the pipette needs to be cleaned and disassembled after the experiment. In order to prevent slipping during the experiment, some pipettes use screws to fix the top, which makes disassembly and cleaning inconvenient; 2. In order to accurately extract water sources and mix experimental data during experiments, a manual single-channel adjustable pipette is used. A closed space is required inside to squeeze the air through the piston to extract the water source. A good sealing effect is required, and the inside is not easy to slip. The tilt of the extrusion rod will cause air leakage, making it impossible to extract water. Utility Model Content
[0005] The purpose of the utility model is to provide an adjustable manual single-channel adjustable pipette to solve the problem that some pipettes proposed in the above background technology use screws to fix the top to prevent slipping during the experiment, which makes it inconvenient to disassemble and clean. To achieve the above purpose, the utility model provides the following technical solution: an adjustable manual single-channel adjustable pipette includes a shell, a sleeve shell is fitted inside the shell, and a movable shell is fitted inside the sleeve shell.
[0006] The movable shell includes a swivel, a slide groove is welded at the bottom of the movable shell, a fourth connecting block is welded at the outside of the movable shell, a pressing block is welded at one side of the swivel, a guide rod is fitted inside the swivel, a pressure guide block is welded at the top of the guide rod, and a piston block is coaxially provided in the middle of the guide rod.
[0007] Further preferably, the outer shell includes an inner shell, the outer wall of the outer shell is provided with a transparent marking, the top of the inner shell passes through the sealing ring, a first connecting block is welded to the inner wall of the outer shell, a dropper head is sleeved at the bottom of the outer shell, a hook is welded at the top of the outer shell, and the external tooth structure of the dropper head is consistent with the internal tooth structure of the outer shell, and the hook and the outer shell are integrally connected.
[0008] Further preferably, the shell includes a limiting plate, a spring is wound on the outside of the shell, a third connecting block is welded on the outside of the shell, a second connecting block is welded on the top of the shell, and the shell forms an elastic structure through the spring, and the shell forms a sliding structure through the limiting plate.
[0009] Further preferably, the external structural dimensions of the first connecting block are consistent with the external structural dimensions of the third connecting block, and the external structural dimensions of the second connecting block are consistent with the external structural dimensions of the fourth connecting block.
[0010] Further preferably, the guide rod forms a sliding structure through the pressure guide block and the slide groove.
[0011] Further preferably, the movable shell forms a rotating structure through a rotating ring, and the pressing block and the rotating ring are integrally connected.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] In the utility model, by pushing the pressing block, the fourth connecting block outside the movable shell is clamped with the third connecting block outside the sleeve shell, and the second connecting block of the sleeve shell is clamped with the first connecting block inside the outer shell. The clamping is achieved by adjusting the angle of the swivel, which facilitates quick fixing of the pushing device to extract water. There is no need to remove the screws at the bottom one by one, and the fixing device can be flexibly adjusted to facilitate later cleaning. At the same time, the risk of the internal pressing block slipping can also be avoided.
[0014] In the utility model, the joint is movably fixed by a thread and can be disassembled and cleaned, so that the guide rod drives the piston block to move inside the inner shell, so that the joint absorbs water, and the sealing ring is sealed to avoid internal air leakage, so that the dropper head can absorb water according to the transparent marking on the outside. Sealing devices are provided on the upper and lower parts of the inner shell to avoid air leakage during use, resulting in failure to extract water. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the explosion structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the internal structure of the housing of the utility model;
[0018] Figure 4 This is a schematic diagram of the external structure of the casing of the utility model;
[0019] Figure 5 This is a schematic diagram of the external structure of the mobile shell of the utility model.
[0020] In the figure: 1. outer shell; 101. dropper head; 102. hook; 103. sealing ring; 104. inner shell; 105. transparent marking; 106. first connecting block; 2. sleeve shell; 201. spring; 202. limit plate; 203. second connecting block; 204. third connecting block; 3. movable shell; 301. pressing block; 302. pressure guide block; 303. fourth connecting block; 304. swivel; 305. slide groove; 306. guide rod; 307. piston block. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figures 1 to 5 The utility model provides a technical solution: an adjustable manual single-channel adjustable pipette, comprising a shell 1, a sleeve shell 2 is fitted inside the shell 1, and a movable shell 3 is fitted inside the sleeve shell 2.
[0023] The movable shell 3 includes a swivel 304, a slide groove 305 is welded at the bottom of the movable shell 3, a fourth connecting block 303 is welded at the outside of the movable shell 3, a pressing block 301 is welded at one side of the swivel 304, a guide rod 306 is fitted inside the swivel 304, a pressure guide block 302 is welded at the top of the guide rod 306, and a piston block 307 is coaxially provided in the middle of the guide rod 306.
[0024] In this embodiment, Figure 1 , Figure 2 and Figure 3As shown, the outer shell 1 includes an inner shell 104, the outer wall of the outer shell 1 is provided with a transparent mark 105, the top of the inner shell 104 passes through the sealing ring 103, the inner wall of the outer shell 1 is welded with a first connecting block 106, the lower part of the outer shell 1 is sleeved with a dropper head 101, the upper part of the outer shell 1 is welded with a hook 102, and the external tooth structure of the dropper head 101 is consistent with the internal tooth structure of the outer shell 1, and the hook 102 and the outer shell 1 are connected in an integrated manner; because the size of the dropper head 101 is consistent with that of the outer shell 1, the dropper head 101 can be quickly disassembled and fixed, and the two adjustments are compared with the wear at the bottom of the traditional integrated dropper head 101, which can be easily replaced without being discarded as a whole, avoiding waste of resources, and the hook 102 and the outer shell 1 adopt an integrated design, which can be conveniently hung inside the collection bag for convenient storage and avoid loss, and can also be pinned on a certain bracket to avoid the bottom from being contaminated with the desktop, causing bacteria to enter and affecting the data of chemical reagent detection, thereby facilitating the disassembly of the dropper head 101.
[0025] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the shell 2 includes a limit plate 202, a spring 201 is wound around the outside of the shell 2, a third connecting block 204 is welded to the outside of the shell 2, a second connecting block 203 is welded to the top of the shell 2, and the shell 2 forms an elastic structure through the spring 201, and the shell 2 forms a sliding structure through the limit plate 202; because the limit plate 202 is clamped in the inside of the outer shell 1, the shell 2 can be movably moved through the spring 201, and can be adjusted to fix the internal moving shell 3 during use, which is convenient for installation and disassembly. The traditional one is not convenient for disassembly and installation. The simple liquid pipette is not sealed and is easy to slip. The outside is fixed with screws, and the screws need to be manually removed, which is not convenient for cleaning and the disassembly speed is slow, thereby facilitating the spring 201 to connect the shell 2 to move.
[0026] In this embodiment, Figure 3 , Figure 4 and Figure 5 As shown, the external structural dimensions of the first connecting block 106 are consistent with the external structural dimensions of the third connecting block 204, and the external structural dimensions of the second connecting block 203 are consistent with the external structural dimensions of the fourth connecting block 303; because the first connecting block 106 and the third connecting block 204 are fitted and snap-fitted, and the second connecting block 203 and the fourth connecting block 303 are fitted and snap-fitted, compared with the traditional fixation by the piston, the control rod and the housing 1, the upper one is more firm and not easy to slip, thereby facilitating the fixation of the first connecting block 106 and the third connecting block 204, and the fixation of the second connecting block 203 and the fourth connecting block 303.
[0027] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, the guide rod 306 forms a sliding structure with the slide groove 305 through the pressure guide block 302; because the pressure guide block 302 drives the guide rod 306 to move inside the slide groove 305, the piston block 307 below the guide rod 306 can move smoothly in the inner shell 104, and the inner shell 104 is provided with sealing rings 103 at the top and bottom to prevent gas from entering the interior and facilitate smooth liquid absorption. A transparent mark 105 is provided on the outer wall of the outer shell 1, and the amount of water used can be accurately extracted during use. The upper and lower positioning increases the seal to avoid leakage and the like. Compared with the traditional sealing effect, it is better, thereby facilitating the movement of the guide rod 306.
[0028] In this embodiment, Figure 1 , Figure 2 and Figure 5 As shown, the movable shell 3 forms a rotating structure through the swivel 304, and the pressing block 301 and the swivel 304 are integrally connected. Since the swivel 304 can fix four connecting block components and perform disassembly and fixation of the gap, the pressing block 301 is provided for easy movement. Compared with the traditional screw fixation, the disassembly time is saved, and multiple connecting block components are used for clamping, which is convenient for quick disassembly of the internal piston block 307 for cleaning, so that the pressing block 301 drives the swivel 304 to adjust.
[0029] The use method and advantages of the utility model: When the adjustable manual single-channel adjustable pipette is used, the working process is as follows:
[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, first, the threads on the outside of the dropper head 101 are fixed to the threads on the outer shell 1, which can be movably disassembled for easy cleaning. The pressure guide block 302 connects the guide rod 306 to move up and down inside the slide groove 305, so that the guide rod 306 drives the piston block 307 to move inside the inner shell 104, and the sealing ring 103 is sealed to avoid internal air leakage, so that the dropper head 101 can absorb water according to the external transparent mark 105, and the pressing block 301 is pushed to make the fourth connecting block 303 on the outside of the mobile shell 3 be clamped with the third connecting block 204 on the outside of the shell 2, and the second connecting block 203 of the shell 2 is clamped with the first connecting block 106 inside the shell 1, and the clamping is performed by adjusting the angle of the swivel 304. The shell 2 moves inside the limit plate 202 through the spring 201, so that it is fixed up and down, which is convenient for adjustment and quick installation. The hook 102 outside the shell 1 can be temporarily hung on the bracket to avoid impurities from being contaminated at the bottom and affecting the experimental data.
[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. An adjustable manual single-channel adjustable pipette, comprising a housing (1), characterized in that: The outer shell (1) is fitted with a sleeve shell (2), and the inner part of the sleeve shell (2) is fitted with a moving shell (3); The movable shell (3) comprises a rotating ring (304), a slide groove (305) is welded at the bottom of the movable shell (3), a fourth connecting block (303) is welded at the outside of the movable shell (3), a pressing block (301) is welded at one side of the rotating ring (304), a guide rod (306) is attached to the inside of the rotating ring (304), a pressure guide block (302) is welded at the top of the guide rod (306), and a piston block (307) is coaxially arranged in the middle of the guide rod (306).
2. The adjustable manual single-channel adjustable pipette according to claim 1, characterized in that: The outer shell (1) comprises an inner shell (104), the outer wall of the outer shell (1) is provided with a transparent marking (105), the top of the inner shell (104) penetrates the sealing ring (103), the inner wall of the outer shell (1) is welded with a first connecting block (106), the lower part of the outer shell (1) is sleeved with a dropper head (101), the upper part of the outer shell (1) is welded with a hook (102), the outer tooth structure of the dropper head (101) is consistent with the inner tooth structure of the outer shell (1), and the hook (102) and the outer shell (1) are connected in an integrated manner.
3. The adjustable manual single-channel adjustable pipette according to claim 2, characterized in that: The casing (2) comprises a limiting plate (202), a spring (201) is wound around the outside of the casing (2), a third connecting block (204) is welded to the outside of the casing (2), a second connecting block (203) is welded to the top of the casing (2), the casing (2) forms an elastic structure through the spring (201), and the casing (2) forms a sliding structure through the limiting plate (202).
4. The adjustable manual single-channel adjustable pipette according to claim 2, characterized in that: The external structural dimensions of the first connecting block (106) are consistent with the external structural dimensions of the third connecting block (204), and the external structural dimensions of the second connecting block (203) are consistent with the external structural dimensions of the fourth connecting block (303).
5. The adjustable manual single-channel adjustable pipette according to claim 1, characterized in that: The guide rod (306) forms a sliding structure through the pressure guide block (302) and the slide groove (305).
6. The adjustable manual single-channel adjustable pipette according to claim 1, characterized in that: The movable shell (3) forms a rotating structure through a rotating ring (304), and the pressing block (301) and the rotating ring (304) are integrally connected.