CN211537809U - Single-channel manually-adjustable pipettor - Google Patents

Abstract

The utility model provides a single-channel manually adjustable pipette, which relates to the technical field of biological sampling. The rubber plate has a card slot on the back of the shell body. The rubber plate can be pressed against the inner wall of the container to avoid liquid dripping caused by the pipette hitting the inner wall of the container. The bottom end of the rotating plate is fixedly connected with a connecting block, and the left and right sides of the connecting block are connected to each other. The rotating core is fixedly connected, the connecting block is located inside the movable groove, and the rotating core is inserted into the rotating hole, and the suction tube is pressed against the inlaid cotton, so as to prevent the suction tube from being worn, and prevent the support from dripping onto the bracket and contaminating the bracket, which solves the problem of shifting. The pipette is easy to shake, causing the extracted liquid to drip. When using the hook to hang the pipette on the external stand, the pipette is inclined as a whole, and the tip at the bottom of the pipette is easy to touch the stand, which not only causes residual residues. Liquid dripping contaminates the holder, and it is easy to damage the tip.

Description

A single-channel manual adjustable pipette

technical field

The utility model relates to a single-channel manual adjustable pipette, in particular to the field of biological sampling.

Background technique

A pipette, also called a pipette gun, is a measuring tool that transfers liquid from the original container to another container within a certain range. It is widely used in biology, chemistry and other fields. Pipettes are widely used in clinical laboratories because of their simple basic structure and convenient use. Its basic structure mainly includes several parts such as display window, volume adjustment part, piston, suction tube and suction head (liquid suction nozzle). The structure of the pipette is stable, so the pipette is easy to shake, resulting in dripping of the extracted liquid, and most of the traditional pipettes have a hook structure, and the user uses the hook to hang the pipette on the external bracket When the pipette is tilted as a whole, the tip at the bottom of the pipette can easily touch the bracket, which not only causes the residual liquid to drip and contaminate the bracket, but also easily damage the tip.

Utility model content

In order to solve the problem that the pipette is easy to shake, causing the extracted liquid to drip, when the pipette is hung on the external bracket using the hook, the whole pipette is inclined, and the tip at the bottom of the pipette is easy to touch the bracket, not only The remaining liquid drips and pollutes the bracket, and the suction head is easily damaged. The purpose of the utility model is to provide a single-channel manual adjustable pipette.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a single-channel manual adjustable pipette, comprising:

A shell body, the bottom end of the shell body is sleeved with a conveying pipe, and the outer wall of the conveying pipe is provided with a threaded groove, the outer wall of the threaded groove is connected with a twist through the thread rotation, and the outer wall of the twist is embedded with a rubber disk, the shell The back of the main body is provided with a card slot, and the bottom end of the card slot is provided with an integral movable slot, and the left and right sides of the inner wall of the movable slot are provided with turning holes, and the rear end of the inner wall of the movable slot is provided with an integral inner slot;

A rotating plate, the bottom end of the rotating plate is fixedly connected with a connecting block, and the left and right sides of the connecting block are fixedly connected with a rotating core, the connecting block is located inside the movable slot, and the rotating core is inserted into the rotating hole, the connection The back of the block is fixed with an integral inner block, and the inner block and the inner groove are mutually clamped, the outer wall of the turning plate is provided with an inlay, and the inlay is inlaid with cotton.

Preferably, a reserved groove is formed in the middle of the front of the shell body, a push button 1 is embedded in the top of the front end of the shell body, a hook is fixedly connected to the top of the back of the shell body, and a push button 2 is inserted at the top of the shell body.

Preferably, the torsion moves up and down in the threaded groove, and the rubber disc is wrapped around the outer wall of the conveying pipe.

Preferably, a suction tube is inserted into the bottom end of the conveying tube, and a suction head is opened at the bottom of the suction tube.

Preferably, the diameter of the rubber disc is larger than that of the suction tube and the main body of the casing in the unfolded state, and the rubber disc is located above the suction tube.

Preferably, the card slot is opened just below the hook, the rotating core is rotatably connected to the rotating hole, the connecting block is movably connected to the movable slot through the rotating core, and the bottom surface of the connecting block is provided with an arc surface, and the arc surface is connected to the movable slot. grooves are in contact.

Preferably, the rotating plate is movably connected with the card slot through the rotating core, and the inner block is engaged with the inner groove while the rotating plate is connected with the card slot.

Preferably, the rotating plate is turned over and the inlay is located at the back side of the suction tube, and the inlay is in contact with the suction head.

Compared with the prior art, the beneficial effects realized by the present utility model:

When the user takes the pipette out of the liquid container, if the user's hand shakes, the diameter of the rubber disc in the unfolded state is 4cm-6cm, while the diameter of the shell body is 3cm-4cm. The diameter is larger than the suction tube and the main body of the shell, and the rubber disc can be used against the inner wall of the container to prevent the pipette from hitting the inner wall of the container and cause the liquid to drip, protect the pipette from shock absorption, and improve the accuracy of suction.

The turning plate is facing the back, when the user moves the turning plate outward, the connecting plate also moves outward, and the inner block will be separated from the inner groove, the turning core and the turning hole will rotate, and when the inner block is separated from the inner groove, the turning plate will be separated from the inner groove. The turn plate is turned 180°, the turn plate is facing the front, and the insert is just at the rear end of the suction head. After the hook is hung on the bracket, the pipette is tilted as a whole, the suction tube is on the cotton insert, and the insert The cotton is made of conventional sponge material, which can protect the suction tube and prevent the suction tube from being worn, and the residual liquid in the suction head can be absorbed by the cotton to prevent dripping on the stent and contaminating the stent.

Description of drawings

The present utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the bottom surface schematic diagram of the conveying pipe structure of the utility model;

3 is a schematic assembly diagram of the bottom surface of the conveying pipe structure of the present invention;

4 is a schematic view of the back of the shell body structure of the present invention;

5 is an enlarged schematic view of the movable groove structure of the present invention;

6 is a schematic diagram of the back of the rotary plate structure of the present invention;

FIG. 7 is a partial enlarged schematic view of the connecting block structure of the present invention;

8 is a schematic side view of the structure of the connecting block of the present invention.

Structure in the figure: shell body 1, reserved groove 101, push button 1 102, push button 2 103, hook 104, conveying pipe 2, thread groove 201, twist 3, rubber disc 301, suction tube 4, suction head 401, The card slot 5, the movable slot 501, the turning hole 502, the inner slot 503, the turning plate 6, the insert 601, the cotton insert 602, the connecting block 7, the arc surface 701, the rotating core 702, and the inner block 703.

Detailed ways

The embodiments of the present invention are described below by specific embodiments, and those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

Please refer to FIG. 1 to FIG. 8. It should be noted that the structures, proportions, sizes, etc. shown in the drawings in this specification are only used to cooperate with the contents disclosed in the specification, for the understanding and reading of those who are familiar with the technology, not for It is used to limit the conditions that the utility model can be implemented, so it has no technical substantive significance. Any modification of the structure, the change of the proportional relationship or the adjustment of the size will not affect the effect that the utility model can produce and the achievement that can be achieved. For the purpose, all should still fall within the scope that the technical content disclosed in the present invention can cover. At the same time, terms such as "up", "down", "left", "right", etc. quoted in this specification are only for the convenience of description and clarity, and are not used to limit the scope of implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the present invention without substantial changes in the technical content.

A single-channel manually adjustable pipette comprising:

The casing body 1, the bottom end of the casing body 1 is sleeved with a conveying pipe 2, and the outer wall of the conveying pipe 2 is provided with a threaded groove 201, and the outer wall of the threaded groove 201 is connected with a twist 3 through a screw thread, and the outer wall of the twist 3 is embedded The rubber disc 301 is connected, the back of the shell body 1 is provided with a card slot 5, and the bottom end of the card slot 5 is provided with a movable slot 501 integral with it, and the left and right sides of the inner wall of the movable slot 501 are provided with rotating holes 502, so The rear end of the inner wall of the movable groove 501 is provided with an inner groove 503 which is integral with it. Before use, the user can install the pipette to the shell body 1 with components such as display window, limiter, volume adjustment part and piston. Inside, the limiter of the pipette is connected with the second push button 103, and the piston should be connected to the end of the limiter, and the capacity adjustment part should be connected with the push button one 102. A groove 101 is reserved, and a push button 102 is embedded in the top of the front end of the shell body 1, a hook 104 is fixedly connected to the top of the back of the shell body 1, and a push button 2 103 is inserted at the top of the shell body 1, and the pipette The display window is installed in the reserved slot 101, through the reserved slot 101, it is convenient for the user to view the numbers on the display window, and the complete pipette structure is assembled. Button 2 103, the capacity adjustment component and the piston installed inside the shell body 1 will move, and the limiter drives the piston to move vertically up and down, changing the pressure inside the shell body 1. The working principle is the same as that of the pipettes on the market. The principle is the same and will not be repeated here;

The bottom end of the conveying pipe 2 is plugged with a suction pipe 4, and a suction head 401 is opened at the bottom of the suction pipe 4. The interior of the conveying pipe 2 is communicated with the shell body 1, and the capacity adjustment component and the piston installed inside the shell body 1 move outward. At this time, the delivery tube 2 pushes out the gas, and the user performs the suction work. The rubber disc 301 is made of PVC transparent rubber material, so the rubber disc 301 can be deformed. When the liquid drips, the user can turn up the rubber disc 301 on the twist 3, the twist 3 moves up and down in the threaded groove 201, and the rubber disc 301 is wrapped around the outer wall of the conveying pipe 2. When not in normal use, the rubber The tray 301 is turned down to wrap the outer wall of the delivery tube 2, which does not affect the placement of the pipette;

The diameter of the rubber disc 301 is larger than that of the suction tube 4 and the shell body 1 in the unfolded state, and the rubber disc 301 is located above the suction tube 4. After the rubber disc 301 is turned up, it can surround the outside of the delivery tube 2, and the user can pass the Rotate the twist 3 to adjust the upper and lower heights of the rubber disc 301. The twist 3 rotates in the threaded groove 201 through the thread, and the upper and lower positions are changed at the same time. After the user adjusts the position of the rubber disc 301, the suction work is performed. When moving inside, the user places the suction head 401 in the liquid to be extracted, and the liquid should be immersed in the suction head 401, a negative pressure is formed inside the shell body 1, and the suction head 401 sucks the liquid. When the pipette is taken out of the liquid container, if the user's hand shakes, the diameter of the rubber disc 301 in the unfolded state is 4cm-6cm, while the diameter of the shell body 1 is 3cm-4cm. The diameter is larger than that of the suction tube 4 and the shell body 1, and the rubber disc 301 can be used against the inner wall of the container to prevent the pipette from hitting the inner wall of the container and cause the liquid to drip, protect the pipette from shock absorption, and improve the accuracy of suction ;

The rotating plate 6, the bottom end of the rotating plate 6 is fixedly connected with a connecting block 7, and the left and right sides of the connecting block 7 are fixedly connected with a rotating core 702, the connecting block 7 is located inside the movable slot 501, and the rotating core 702 is inserted In the rotation hole 502, the back of the connecting block 7 is fixed with an inner block 703 integral with it, and the inner block 703 and the inner groove 503 are mutually clamped. Inlaid cotton 602 is embedded inside, and after extracting the liquid, press button one 102 and button two 103 again to release the extracted liquid;

The card slot 5 is opened directly below the hook 104, and the rotating core 702 is rotatably connected with the rotating hole 502, the connecting block 7 is movably connected with the movable slot 501 through the rotating core 702, and the bottom surface of the connecting block 7 is provided with an arc surface 701, The arc surface 701 is in contact with the movable slot 501, the rotating plate 6 is movably connected with the card slot 5 through the rotating core 702, and the inner block 703 is engaged with the inner slot 503 while the rotating plate 6 is connected with the card slot 5. After the pipetting work is completed, if the pipette needs to be hung on the external bracket, the user can first pull out the rotating plate 6. At this time, the rotating plate 6 is facing the back, and the user can move the rotating plate 6 outward. At the same time, the connecting plate also moves outward, and the inner block 703 will be separated from the inner groove 503, the rotating core 702 and the rotating hole 502 will rotate, and the inner block 703 will be separated from the inner groove 503. Turned by 180°, the turning plate 6 is facing the front;

The rotary plate 6 is turned over and the inlay 602 is located on the back side of the suction tube 4, and the inlay 602 is in contact with the suction head 401, and the inlay 601 is just located at the rear end of the suction head 401. After the hook 104 is hung on the bracket, pipetting The device is tilted as a whole, and the suction tube 4 is against the inlay 602. The inlay 602 is made of conventional sponge material, which can protect the suction tube 4 and prevent the suction tube 4 from being worn, and the residual liquid in the suction head 401 can be removed by the inlay. Cotton 602 absorbs and prevents dripping onto the stent to contaminate the stent.

Working principle: Before use, the user can install the pipette into the shell body 1 with components such as the display window, the volume adjustment part and the piston. The working principle is the same as the working principle of the pipette on the market. Here Without further elaboration, in order to prevent liquid dripping due to the shaking of the pipette during the user's pipetting process, the user can turn up the rubber disc 301 on the twist 3. After the rubber disc 301 is turned up, it can surround the conveying Outside the tube 2, and the user can also adjust the up and down height of the rubber disc 301 by turning the twist 3, the user places the suction head 401 in the liquid to be extracted, the suction head 401 sucks the liquid, and after the extraction is completed, the user When the pipette is taken out of the liquid container, the rubber disc 301 can hold the inner wall of the container to prevent the pipette from hitting the inner wall of the container and cause the liquid to drip. After the liquid is extracted, press the button one 102 and the button two 103 again. , to release the extracted liquid. After the user finishes pipetting, the user can break out the rotating plate 6, the inner block 703 will be separated from the inner groove 503, the rotating core 702 and the rotating hole 502 will rotate, and the inner block 703 will be detached. At the same time as the inner slot 503, the turning plate 6 is separated from the card slot 5, the turning plate 6 is turned 180°, the turning plate 6 is facing the front, and the inlay 601 is just located at the rear end of the suction head 401, and the hook 104 is hung on the bracket after the , the pipette is tilted as a whole, and the suction tube 4 is against the inlay 602. The inlay 602 is made of a conventional sponge material, which can protect the suction tube 4, avoid the suction tube 4 from being worn, and the residual residue in the suction head 401. Liquid can be absorbed by the inlay 602, preventing liquid dripping onto the stent and contaminating the stent.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims (8)

1. A single-channel manually-adjustable pipette, comprising:

the shell comprises a shell main body (1), wherein a conveying pipe (2) is sleeved at the bottom end of the shell main body (1), a threaded groove (201) is formed in the outer wall of the conveying pipe (2), a rotating knob (3) is rotatably connected to the outer wall of the threaded groove (201) through threads, a rubber disc (301) is embedded in the outer wall of the rotating knob (3), a clamping groove (5) is formed in the back surface of the shell main body (1), a movable groove (501) integrated with the clamping groove is formed in the bottom end of the clamping groove (5), rotating holes (502) are formed in the left side and the right side of the inner wall of the movable groove (501), and an inner groove (503) integrated with the movable groove (501) is formed;

change board (6), change board (6) bottom fixedly connected with connecting block (7), and the equal fixedly connected with in the connecting block (7) left and right sides changes core (702), connecting block (7) are located movable groove (501) inside, and change core (702) and alternate into rotating hole (502), connecting block (7) back is fixed with rather than inner block (703) as an organic whole, and inner block (703) and inside groove (503) joint each other, it has rabbet (601) to change board (6) outer wall opening, and rabbet (601) inside scarf joint has inlays cotton (602).

2. The single lane manually adjustable pipette of claim 1, wherein: the improved shell is characterized in that a reserved groove (101) is formed in the middle of the front face of the shell main body (1), a first press button (102) is embedded into the top of the front end of the shell main body (1), a hook (104) is fixedly connected to the top of the back face of the shell main body (1), and a second press button (103) is inserted into the top of the shell main body (1).

3. The single lane manually adjustable pipette of claim 1, wherein: the rotary knob (3) moves up and down in the thread groove (201), and the rubber disc (301) wraps the outer wall of the conveying pipe (2).

4. The single lane manually adjustable pipette of claim 1, wherein: the bottom end of the conveying pipe (2) is inserted with a suction pipe (4), and the bottom of the suction pipe (4) is provided with a suction head (401).

5. The single lane manually adjustable pipette of claim 4, wherein: the diameter of the rubber disc (301) is larger than that of the suction tube (4) and the shell main body (1) in the unfolded state, and the rubber disc (301) is located above the suction tube (4).

6. The single lane manually adjustable pipette of claim 1, wherein: draw-in groove (5) are opened under couple (104), and rotate core (702) and rotate hole (502) and rotate and be connected, connecting block (7) are through rotating core (702) and activity groove (501) swing joint, and connecting block (7) bottom surface is opened there is cambered surface (701), cambered surface (701) contact with activity groove (501).

7. The single lane manually adjustable pipette of claim 6, wherein: the rotating plate (6) is movably connected with the clamping groove (5) through the rotating core (702), and the inner block (703) is clamped with the inner groove (503) while the rotating plate (6) is connected with the clamping groove (5).

8. The single lane manually adjustable pipette of claim 1, wherein: the rotating plate (6) is turned over and embedded with cotton (602) and is positioned at the rear side of the suction tube (4), and the embedded cotton (602) is contacted with the suction head (401).

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