CN214553654U - Straw device for quantitative analysis - Google Patents
Straw device for quantitative analysis Download PDFInfo
- Publication number
- CN214553654U CN214553654U CN202120647956.6U CN202120647956U CN214553654U CN 214553654 U CN214553654 U CN 214553654U CN 202120647956 U CN202120647956 U CN 202120647956U CN 214553654 U CN214553654 U CN 214553654U
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- Prior art keywords
- handle
- pipette
- quantitative analysis
- piston
- moving block
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Abstract
The utility model discloses a straw device for quantitative analysis, include: a straw; one end of the suction pipe is provided with a connecting pipe; the other end of the connecting pipe is connected with a vacuum pipe; the other end of the vacuum tube is connected with the handle; a moving block is arranged on the inner side of the handle; the moving block is connected with the movable plate; a connecting rod is arranged on the lower side of the movable plate; the other end of the connecting rod is provided with a piston; the piston is positioned at the inner side of the vacuum tube; the piston is matched with the vacuum tube. Through setting up the handle, when using the straw, easily control the operation, use convenient and fast.
Description
Technical Field
The utility model belongs to the technical field of chemical experiment equipment, especially, relate to a straw device for quantitative analysis.
Background
Chemistry is a natural science that studies the nature, composition, structure, changes, uses, methods of manufacture, and laws of changes in substances. Chemistry is closely related to industry, agriculture, daily life, medicine, materials, etc. Chemistry is one of important subjects, and chemical experiments are needed in chemical learning, so that the chemical experiments can help students to better understand chemical knowledge and improve learning interests of the students.
In chemical experiments, chemical instruments are needed, and a pipette is one of the devices commonly used in chemical experiments and is used for sucking a certain amount of chemical reagents. The straw includes pipette and pipette, and current pipette and pipette need cooperate the use of aurilave, utilize aurilave cooperation contact interface to carry out the imbibition, but the problem that the interface is sealed not good appears easily in the use of aurilave, and the dynamics is wayward during the use, and the operation degree of difficulty is big.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to provide a straw device for quantitative analysis, through setting up the handle, when using the straw, easily control the operation, use convenient and fast.
The utility model provides a following technical scheme:
a pipette device for quantitative analysis, comprising: a straw; one end of the suction pipe is provided with a connecting pipe; the other end of the connecting pipe is connected with a vacuum pipe; the other end of the vacuum tube is connected with the handle; a moving block is arranged on the inner side of the handle; the moving block is connected with the movable plate; a connecting rod is arranged on the lower side of the movable plate; the other end of the connecting rod is provided with a piston; the piston is positioned at the inner side of the vacuum tube; the piston is matched with the vacuum tube.
Preferably, a spring is arranged between the moving block and the handle; one end of the spring is connected with the handle, and the other end of the spring is connected with the moving block; the moving block is provided with a groove, and the spring is located in the groove.
Preferably, the number of the springs is at least two, and the springs are uniformly arranged along the length direction of the handle.
Preferably, one side of the movable plate is provided with a rack.
Preferably, a fixed hook is arranged on the inner side of the handle; the fixed hook is connected with the handle through a rotating shaft; the rotating shaft is sleeved with a torsion spring, one end of the torsion spring is connected with the rotating shaft, the other end of the torsion spring is connected with a fixed hook, and the fixed hook is in contact with the rack.
Preferably, the fixed hook is provided with a pressing block, the upper surface of the handle is provided with a second groove, and the pressing block is located in the second groove.
Preferably, the pipette is a pipette or a pipette.
Preferably, a sealing ring is arranged on the outer side of the connecting pipe and used for fixing the vacuum pipe and the connecting pipe.
Preferably, one end of the vacuum tube close to the handle is provided with an air vent.
Preferably, the surface of the vacuum tube is provided with scale marks.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model relates to a straw device for quantitative analysis through setting up the handle, is convenient for grip this device, has solved the inconvenient problem of straw gripping in the tradition, very big having made things convenient for get the liquid operation, has shortened and has got the liquid time, has improved chemical experiment efficiency.
(2) The utility model relates to a straw device for quantitative analysis, through setting up the vacuum tube, be provided with the scale mark on the vacuum tube, can absorb liquid by the ration, easily control has reduced chemical reagent's waste in the experimentation, has improved chemical reagent's utilization ratio.
(3) The utility model relates to a straw device for quantitative analysis through setting up the sealing washer, has improved the sealing performance of device, has increased the precision when device absorbs liquid, has made things convenient for the experimentation.
(4) The utility model relates to a straw device for quantitative analysis, through setting up the fixed hook, can the discharge of liquid in the manual control straw, effectual avoiding is because of the phenomenon of erroneous operation liquid discharge, use and convenience in operation process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the internal structure of fig. 1 according to the present invention.
Fig. 3 is a schematic side view of the movable plate of the present invention.
Fig. 4 is a schematic view of the second embodiment of the present invention.
In the figure: 1. a straw; 2. a connecting pipe; 3. a seal ring; 4. a vacuum tube; 5. a handle; 6. a movable plate; 7. a spring; 8. a moving block; 9. a fixed hook; 10. a rotating shaft; 11. a connecting rod; 12. a piston; 13. a pipette.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention will be combined to clearly and completely describe the technical solutions of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
As shown in fig. 1 to 3, a pipette device for quantitative analysis, comprising: a pipette 1, wherein the pipette 1 is a pipette; one end of the straw 1 is provided with a connecting pipe 2; the other end of the connecting pipe 2 is connected with a vacuum pipe 4; the other end of the vacuum tube 4 is connected with a handle 5; a moving block 8 is arranged on the inner side of the handle 5; the moving block 8 is connected with the movable plate 6; a connecting rod 11 is arranged at the lower side of the movable plate 6; the other end of the connecting rod 11 is provided with a piston 12; the piston 12 is positioned inside the vacuum tube 4; the piston 12 is matched with the vacuum tube 4, a through hole is formed in the middle of the handle 5, the handle is of a shell structure, the moving block 8 can move in the handle 5, so that the piston 12 is driven to move, when the piston 12 moves upwards, vacuum is formed in the vacuum tube 4, and the liquid taking process of the pipette is completed.
A spring 7 is arranged between the moving block 8 and the handle 5; one end of the spring 7 is connected with the handle 5, and the other end of the spring is connected with the moving block 8; the moving block 8 is provided with a groove, and the spring 7 is positioned in the groove. The number of the springs 7 is at least two, and the springs 7 are uniformly arranged along the length direction of the handle 5.
One side of the movable plate 6 is provided with a rack. A fixed hook 9 is arranged on the inner side of the handle 5; the fixed hook 9 is connected with the handle 5 through a rotating shaft 10; the rotating shaft 10 is sleeved with a torsion spring, one end of the torsion spring is connected with the rotating shaft 10, the other end of the torsion spring is connected with the fixed hook 9, the fixed hook 9 is in contact with the rack in a natural state to fix the movable plate 6, the movable plate 6 is prevented from moving, and the purpose of locking the movable plate 6 is achieved.
The fixed hook 9 is provided with a pressing block, the upper surface of the handle 5 is provided with a second groove, the pressing block is located in the second groove, the pressing block is pressed downwards, the fixed hook 9 is separated from the rack on the movable plate 6 after rotating, and the movable block 8 is reset under the action of the spring 7.
And a sealing ring 3 is arranged on the outer side of the connecting pipe 2, and the sealing ring 3 is used for fixing the vacuum pipe 4 and the connecting pipe 2. The sealing ring 3 is made of rubber or plastic, and the sealing performance between the connecting pipe 2 and the vacuum pipe 4 is improved by the sealing ring. And one end of the vacuum tube 2 close to the handle 5 is provided with an air hole. The surface of vacuum tube 2 is provided with the scale mark, and through setting up the scale mark, the operating personnel of being convenient for carries out ration extraction liquid, has made things convenient for the actual liquid needs of getting of chemical experiment.
Example two
Referring to fig. 4, a pipette device for quantitative analysis includes: a pipette 1, the pipette 1 being a pipette 13; one end of the straw 1 is provided with a connecting pipe 2; the other end of the connecting pipe 2 is connected with a vacuum pipe 4; the other end of the vacuum tube 4 is connected with a handle 5; a moving block 8 is arranged on the inner side of the handle 5; the moving block 8 is connected with the movable plate 6; a connecting rod 11 is arranged at the lower side of the movable plate 6; the other end of the connecting rod 11 is provided with a piston 12; the piston 12 is positioned inside the vacuum tube 4; the piston 12 is matched with the vacuum tube 4, a through hole is formed in the middle of the handle 5, the handle is of a shell structure, the moving block 8 can move in the handle 5, so that the piston 12 is driven to move, when the piston 12 moves upwards, vacuum is formed in the vacuum tube 4, and the liquid taking process of the pipette is completed.
And a sealing ring 3 is arranged on the outer side of the connecting pipe 2, and the sealing ring 3 is used for fixing the vacuum pipe 4 and the connecting pipe 2. The sealing ring 3 is made of rubber or plastic, and the sealing performance between the connecting pipe 2 and the vacuum pipe 4 is improved by the sealing ring. And one end of the vacuum tube 2 close to the handle 5 is provided with an air hole. The surface of vacuum tube 2 is provided with the scale mark, and through setting up the scale mark, the operating personnel of being convenient for carries out ration extraction liquid, has made things convenient for the actual liquid needs of getting of chemical experiment.
EXAMPLE III
A pipette device for quantitative analysis, comprising: a pipette 1, wherein the pipette 1 is a pipette; one end of the straw 1 is provided with a connecting pipe 2; the other end of the connecting pipe 2 is connected with a vacuum pipe 4; the other end of the vacuum tube 4 is connected with a handle 5; a moving block 8 is arranged on the inner side of the handle 5; the moving block 8 is connected with the movable plate 6; a connecting rod 11 is arranged at the lower side of the movable plate 6; the other end of the connecting rod 11 is provided with a piston 12; the piston 12 is positioned inside the vacuum tube 4; the piston 12 is matched with the vacuum tube 4, a through hole is formed in the middle of the handle 5, the handle is of a shell structure, the moving block 8 can move in the handle 5, so that the piston 12 is driven to move, when the piston 12 moves upwards, vacuum is formed in the vacuum tube 4, and the liquid taking process of the pipette is completed.
The lower side of the moving block 8 is provided with a groove, the groove is matched with the shape of a human finger, and the comfort level of the holding device is improved and the holding device is convenient to operate and use.
The device that obtains through above-mentioned technical scheme is a straw device for quantitative analysis, and in process of production, at first insert straw 1 to the chemical reagent that needs the extraction, then, grip handle 5 upwards removes fly leaf 6, and fly leaf 6 drives piston 12 rebound, accomplishes chemical reagent's extraction, and simultaneously, fixed hook 9 has played fixed effect to fly leaf 6. When liquid in the suction pipe 1 needs to be discharged, the pressing block is pressed, the fixed hook 9 is separated from the movable plate, and the movable block 8 drives the piston 12 to reset under the action of the spring 7.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A pipette device for quantitative analysis, comprising: a straw (1); it is characterized in that one end of the suction pipe (1) is provided with a connecting pipe (2); the other end of the connecting pipe (2) is connected with a vacuum pipe (4); the other end of the vacuum tube (4) is connected with a handle (5); a moving block (8) is arranged on the inner side of the handle (5); the moving block (8) is connected with the movable plate (6); a connecting rod (11) is arranged on the lower side of the movable plate (6); the other end of the connecting rod (11) is provided with a piston (12); the piston (12) is positioned at the inner side of the vacuum tube (4); the piston (12) is matched with the vacuum tube (4).
2. The pipette device for quantitative analysis according to claim 1, wherein a spring (7) is provided between the moving block (8) and the handle (5); one end of the spring (7) is connected with the handle (5), and the other end of the spring is connected with the moving block (8); the moving block (8) is provided with a groove, and the spring (7) is located in the groove.
3. The pipette device for quantitative analysis according to claim 2, wherein the number of the springs (7) is at least two, and the springs (7) are uniformly arranged along the length direction of the handle (5).
4. The pipette device for quantitative analysis according to claim 1, wherein a rack is provided on one side of the movable plate (6).
5. The pipette device for quantitative analysis according to claim 4, wherein the handle (5) is provided at its inner side with a fixing hook (9); the fixed hook (9) is connected with the handle (5) through a rotating shaft (10); the rotating shaft (10) is sleeved with a torsion spring, one end of the torsion spring is connected with the rotating shaft (10), the other end of the torsion spring is connected with the fixed hook (9), and the fixed hook (9) is in contact with the rack.
6. The pipette device for quantitative analysis according to claim 5, wherein the fixing hook (9) is provided with a pressing piece, and the upper surface of the handle (5) is provided with a second groove in which the pressing piece is located.
7. The pipette device for quantitative analysis according to claim 1, wherein the pipette (1) is a pipette or a pipette.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120647956.6U CN214553654U (en) | 2021-03-31 | 2021-03-31 | Straw device for quantitative analysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120647956.6U CN214553654U (en) | 2021-03-31 | 2021-03-31 | Straw device for quantitative analysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214553654U true CN214553654U (en) | 2021-11-02 |
Family
ID=78356570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120647956.6U Expired - Fee Related CN214553654U (en) | 2021-03-31 | 2021-03-31 | Straw device for quantitative analysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214553654U (en) |
-
2021
- 2021-03-31 CN CN202120647956.6U patent/CN214553654U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211102 |