CN210474032U

CN210474032U - Pipettor device for preparing 2,2,6, 6-tetramethyl heptanedione

Info

Publication number: CN210474032U
Application number: CN201921272558.XU
Authority: CN
Inventors: 约瑟夫·沙龙; 于继明; 黄震; 黄丽
Original assignee: Yangzhou Selenium Biomedical Science And Technology Co ltd
Current assignee: Yangzhou Selenium Biomedical Science And Technology Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-05-08
Anticipated expiration: 2029-08-07

Abstract

The utility model belongs to the technical field of chemical production equipment, especially, a pipettor device is used in preparation of 2,2,6, 6-tetramethyl heptanedione, including pipettor body and pipettor shell, the surface of pipettor body and the inner wall fixed connection of pipettor shell, the inner wall sliding connection of pipettor body has the piston, one side of piston is rotated and is connected with the push-and-pull rod, the one end fixedly connected with pressing plate of push-and-pull rod, the slot has been seted up to one side of pipettor shell, the inner wall sliding connection of slot has the inserted bar, the one end fixedly connected with pin of inserted bar. The utility model discloses a pulling push-and-pull rod can inhale required solution inside the pipettor body to reach the purpose of moving and get liquid, push-and-pull rod surface scale mark can play the measuring effect in pipettor body extraction liquid, and not set up the scale on the pipettor body, hand shelters from the scale when can avoiding handing the pipettor body like this.

Description

Pipettor device for preparing 2,2,6, 6-tetramethyl heptanedione

Technical Field

The utility model relates to a chemical production equipment technical field specifically is a pipettor device is used in preparation of 2,2,6, 6-tetramethyl heptanedione.

Background

The complex of 2,2,6, 6-tetramethyl-3, 5-heptanedione (DPM for short) and transition metal has the advantages of easy volatilization and thermal stability, and is mainly applied to gas chromatography analysis of metal and chemical shift reagent in nuclear magnetic resonance spectrum at present. DPM is not sold in the domestic market at present. Many improved methods have been proposed for its synthesis. A preferred method is the Claisen ester condensation with methyl pivalate and pinacolone.

When the 2,2,6, 6-tetramethyl heptanedione is produced and prepared, a liquid transfer device is used, is a small-capacity liquid transfer device, is widely applied to laboratories of universities and colleges and scientific research institutions, and is also widely applied to environmental protection, occupational health, public health, hospitals and animal and plant research institutes; the liquid transfer device mainly comprises a liquid transfer device body, a pull rod, a suction nozzle and the like.

The prior pipettor has the following defects when in use:

1. scales are marked on the shell of the pipettor, and the scales can be covered by a hand when the pipettor is held by the hand, so that the scales are inconvenient to read and display;

2. the discharge amount is difficult to grasp when the solution is discharged after aspiration, resulting in inaccurate pipetting.

Disclosure of Invention

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a pipettor device is used in preparation of 2,2,6, 6-tetramethyl heptanedione has solved the scale and has read to show inconvenient and move the inaccurate problem of liquid.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a pipettor device for preparing 2,2,6, 6-tetramethyl heptanedione comprises a pipettor body and a pipettor shell, wherein the outer surface of the pipettor body is fixedly connected with the inner wall of the pipettor shell, the inner wall of the pipettor body is slidably connected with a piston, one side of the piston is rotatably connected with a push-pull rod, one end of the push-pull rod is fixedly connected with a pressing plate, one side of the pipettor shell is provided with an insertion groove, the inner wall of the insertion groove is slidably connected with an insertion rod, one end of the insertion rod is fixedly connected with a stop rod, the outer surface of the push-pull rod is fixedly connected with a baffle plate, the top and the bottom of the pipettor shell are both provided with a strip-shaped groove, the surface of the insertion rod is provided with a threaded hole, the inner wall of the threaded hole is in threaded connection with a bolt, the bolt penetrates, the infusion port on the pipettor body is fixedly connected with an elastic suction nozzle, a suction head is sleeved on one side of the elastic suction nozzle, and scale marks are carved on the outer surfaces of the push-pull rod and the insertion rod.

As an optimal technical scheme of the utility model, the surface of pipettor body is seted up flutedly, the surface of pipettor shell is pegged graft there is the rubber buffer, the rubber buffer is pegged graft with the inner wall of recess.

As an optimal technical scheme of the utility model, the fixed surface of piston is connected with the sealing washer, the inner wall sliding connection of sealing washer and pipettor body.

As a preferred technical scheme of the utility model, the draw-in groove has been seted up to the inside of piston, the other end of push-and-pull rod runs through and extends to the inside of draw-in groove, the tip fixedly connected with disc of push-and-pull rod, the inner wall swing joint of disc and draw-in groove.

As a preferred technical scheme of the utility model, one side threaded connection that the pipettor body is close to the pressing plate has the dome, circular shape thread groove has been seted up to the side of pipettor body, the fillet of thread and the thread groove threaded connection of dome one side.

As an optimized technical scheme of the utility model, the top fixedly connected with handle of pipettor shell, the fixed surface of handle is connected with the rubber layer.

(III) advantageous effects

Compared with the prior art, the utility model provides a pipettor device is used in preparation of 2,2,6, 6-tetramethyl heptanedione possesses following beneficial effect:

1. this 2,2,6, 6-tetramethyl heptanedione preparation is with pipettor device can be with inside required solution imbibition pipettor body through the pulling push-and-pull rod to reach the mesh of moving and get liquid, push-and-pull rod surface scale mark can play the measuring effect when pipettor body extraction liquid, and not set up the scale on the pipettor body, hand shelters from the scale when can avoiding handheld pipettor body like this.

2. This 2,2,6, pipettor device is used in preparation of 6-tetramethyl heptanedione, through setting up the slot, the inserted bar, the pin, the baffle, the screw hole, bolt and bar groove can play quantitative exhaust effect in discharged liquid, scale mark on the inserted bar can the quantitative measurement, adjust the scale mark on the inserted bar to the position that needs the adjustment after, twist and move the bolt and fix inserted bar and slot, only pipe promotes to press the pressing plate just can like this, stop promoting when baffle and pin contact and press the pressing plate, just so can conveniently master the discharge capacity, move liquid accurately.

Drawings

Fig. 1 is a sectional view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic view of the connection structure between the push-pull rod and the piston according to the present invention.

In the figure: 1. a pipettor body; 2. a pipettor housing; 3. a rubber plug; 4. a piston; 5. a seal ring; 6. a push-pull rod; 7. a card slot; 8. a disc; 9. scale lines; 10. a pressing plate; 11. a slot; 12. inserting a rod; 13. a stop lever; 14. a baffle plate; 15. a threaded hole; 16. a bolt; 17. a strip-shaped groove; 18. a dome; 19. a handle; 20. an elastic suction nozzle; 21. a suction head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a2, 2,6, 6-tetramethyl heptanedione preparation pipette device comprises a pipette body 1 and a pipette shell 2, wherein the outer surface of the pipette body 1 is fixedly connected with the inner wall of the pipette shell 2, the inner wall of the pipette body 1 is slidably connected with a piston 4, one side of the piston 4 is rotatably connected with a push-pull rod 6, one end of the push-pull rod 6 is fixedly connected with a pressing plate 10, one side of the pipette shell 2 is provided with an insertion groove 11, the inner wall of the insertion groove 11 is slidably connected with an insertion rod 12, one end of the insertion rod 12 is fixedly connected with a stop rod 13, the outer surface of the push-pull rod 6 is fixedly connected with a baffle 14, the top and the bottom of the pipette shell 2 are both provided with strip-shaped grooves 17, the surface of the insertion rod 12 is provided with a threaded hole 15, the inner wall of the threaded hole 15 is in threaded connection with a bolt 16, the bolt 16 passes through the, an infusion port on the pipette body 1 is fixedly connected with an elastic suction nozzle 20, one side of the elastic suction nozzle 20 is sleeved with a suction head 21, and scale marks 9 are respectively carved on the outer surfaces of the push-pull rod 6 and the insertion rod 12.

In the embodiment, a required solution can be sucked into the pipettor body 1 by pulling the push-pull rod 6, so that the purpose of moving and taking liquid is achieved, the scale marks 9 on the outer surface of the push-pull rod 6 can play a role in measuring when the pipettor body 1 extracts liquid, and scales are not arranged on the pipettor body 1, so that the scales can be prevented from being blocked by a hand when the pipettor body 1 is held by hand; the quantitative discharging function can be achieved when liquid is discharged by arranging the inserting groove 11, the inserting rod 12, the stop rod 13, the baffle plate 14, the threaded hole 15, the bolt 16 and the strip-shaped groove 17, the scale marks 9 on the inserting rod 12 can be measured quantitatively, after the scale marks 9 on the inserting rod 12 are adjusted to the position needing to be adjusted, the bolt 16 is screwed to fix the inserting rod 12 and the inserting groove 11, and therefore the pressing plate 10 can be pushed only by pushing the pressing plate 10 until the baffle plate 14 is contacted with the stop rod 13, the displacement can be conveniently mastered, and liquid is accurately moved; when the bolt 16 is loosened, the insertion rod 12 can slide in the slot 11, the bolt 16 can also slide in the strip-shaped slot 17, when the piston 4 is positioned at the rightmost side in the pipette body 1 in the initial state, the scale exposed by the scale mark 9 on the push-pull rod 6 is zero, when the insertion rod 12 is positioned at the rightmost side of the slot 11 in the initial state, the scale exposed by the scale mark 9 on the insertion rod 12 is zero, and different suction heads 21 can be replaced when different liquids are removed.

Specifically, the surface of pipettor body 1 is seted up flutedly, and the surface grafting of pipettor shell 2 has rubber buffer 3, and rubber buffer 3 pegs graft with the inner wall of recess.

In this embodiment, recess and rubber buffer 3's setting can carry on spacingly to pipettor body 1 and pipettor shell 2, and the rubber buffer 3 is difficult for following roll-off in the recess, makes things convenient for pipettor body 1 and pipettor shell 2 to dismantle the washing like this.

Specifically, the outer surface of the piston 4 is fixedly connected with a sealing ring 5, and the sealing ring 5 is slidably connected with the inner wall of the pipette body 1.

In this embodiment, the arrangement of the sealing ring 5 can make the piston 4 leak when sliding on the inner wall of the pipette body 1.

Specifically, a clamping groove 7 is formed in the piston 4, the other end of the push-pull rod 6 penetrates through and extends into the clamping groove 7, a disc 8 is fixedly connected to the end portion of the push-pull rod 6, and the disc 8 is movably connected with the inner wall of the clamping groove 7.

In this embodiment, the push-pull rod 6 is rotatably connected to the piston 4 such that rotation of the push-pull rod 6 facilitates observation of the graduation marks 9.

Specifically, a round cover 18 is connected to one side of the pipette body 1 close to the pressing plate 10 in a threaded manner, a round thread groove is formed in the side surface of the pipette body 1, and a thread ring on one side of the round cover 18 is connected with the thread groove in a threaded manner.

In this embodiment, the round cap 18 is arranged to prevent dust and small impurities from entering the pipette body 1.

Specifically, the top of the pipette housing 2 is fixedly connected with a handle 19, and the surface of the handle 19 is fixedly connected with a rubber layer.

In this embodiment, the handle 19 is provided to facilitate holding the pipette housing 2 by hand, and better control can be achieved when pushing and pulling the pressing plate 10.

The utility model discloses a theory of operation and use flow: the required solution can be sucked into the pipettor body 1 by pulling the push-pull rod 6, so that the purpose of moving liquid is achieved, the scale lines 9 on the outer surface of the push-pull rod 6 can play a role in measuring when the pipettor body 1 extracts liquid, and scales are not arranged on the pipettor body 1, so that the scales can be prevented from being shielded by a hand when the pipettor body 1 is held by hand; the quantitative discharging function can be achieved when liquid is discharged by arranging the inserting groove 11, the inserting rod 12, the stop rod 13, the baffle plate 14, the threaded hole 15, the bolt 16 and the strip-shaped groove 17, the scale marks 9 on the inserting rod 12 can be measured quantitatively, after the scale marks 9 on the inserting rod 12 are adjusted to the position needing to be adjusted, the bolt 16 is screwed to fix the inserting rod 12 and the inserting groove 11, and therefore the pressing plate 10 can be pushed only by pushing the pressing plate 10 until the baffle plate 14 is contacted with the stop rod 13, the displacement can be conveniently mastered, and liquid is accurately moved; when the bolt 16 is loosened, the insert rod 12 can slide in the slot 11, the bolt 16 can also slide in the strip-shaped slot 17, when the piston 4 is positioned at the rightmost side in the pipette body 1 in the initial state, the scale exposed by the scale mark 9 on the push-pull rod 6 is zero, and when the end of the insert rod 12 is positioned at the rightmost side of the slot 11 in the initial state, the scale exposed by the scale mark 9 on the insert rod 12 is zero.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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

1. A pipettor device for preparing 2,2,6, 6-tetramethyl heptanedione comprises a pipettor body (1) and a pipettor housing (2), and is characterized in that: the outer surface of the pipette body (1) is fixedly connected with the inner wall of the pipette shell (2), the inner wall of the pipette body (1) is connected with a piston (4) in a sliding manner, one side of the piston (4) is connected with a push-pull rod (6) in a rotating manner, one end of the push-pull rod (6) is fixedly connected with a pressing plate (10), one side of the pipette shell (2) is provided with a slot (11), the inner wall of the slot (11) is connected with an insert rod (12) in a sliding manner, one end of the insert rod (12) is fixedly connected with a stop rod (13), the outer surface of the push-pull rod (6) is fixedly connected with a baffle (14), the top and the bottom of the pipette shell (2) are both provided with a strip-shaped groove (17), the surface of the insert rod (12) is provided with a threaded hole (15), the inner wall of the threaded hole (15) is connected with a bolt (16), and, the utility model discloses a pipette, including pipettor body (1), pipette shell (2), pipette shell (12) is equipped with the infusion mouth of pipettor body (1) and runs through and extend to the outside of pipettor shell (2), infusion mouth fixed connection elasticity suction nozzle (20) on pipettor body (1), suction head (21) have been cup jointed to one side of elasticity suction nozzle (20), scale mark (9) have all been carved with to the surface of push-and-pull rod (6) and inserted bar (12).

2. The pipette device for preparing 2,2,6, 6-tetramethylheptanedione according to claim 1, characterized in that: the outer surface of pipettor body (1) is seted up flutedly, the surface grafting of pipettor shell (2) has rubber buffer (3), rubber buffer (3) are pegged graft with the inner wall of recess.

3. The pipette device for preparing 2,2,6, 6-tetramethylheptanedione according to claim 1, characterized in that: the outer surface of the piston (4) is fixedly connected with a sealing ring (5), and the sealing ring (5) is connected with the inner wall of the liquid transfer device body (1) in a sliding mode.

4. The pipette device for preparing 2,2,6, 6-tetramethylheptanedione according to claim 1, characterized in that: a clamping groove (7) is formed in the piston (4), the other end of the push-pull rod (6) penetrates through the clamping groove (7) and extends to the inside of the clamping groove, a disc (8) is fixedly connected to the end portion of the push-pull rod (6), and the disc (8) is movably connected with the inner wall of the clamping groove (7).

5. The pipette device for preparing 2,2,6, 6-tetramethylheptanedione according to claim 1, characterized in that: one side, close to the pressing plate (10), of the pipette body (1) is in threaded connection with a round cover (18), a round thread groove is formed in the side face of the pipette body (1), and a thread ring on one side of the round cover (18) is in threaded connection with the thread groove.

6. The pipette device for preparing 2,2,6, 6-tetramethylheptanedione according to claim 1, characterized in that: the top of the pipettor housing (2) is fixedly connected with a handle (19), and the surface of the handle (19) is fixedly connected with a rubber layer.