CN215353520U - Experimental pipettor of using - Google Patents

Abstract

The utility model discloses a test pipette, which comprises a pipette body, wherein the pipette body comprises a pipette shell and a suction head arranged at the lower end of the pipette shell, the suction head is communicated with the inside of the pipette shell, a suction nozzle is sleeved on the suction head, a protective cover is sleeved on the pipette shell, the protective cover comprises a mounting ring sleeved on the pipette shell and a support ring positioned below the mounting ring, the diameter of the support ring is smaller than that of the mounting ring, supporting rods are arranged between the mounting ring and the support ring, the supporting rods are uniformly arranged along the circumferential direction, and the suction nozzle is arranged among the supporting rods. According to the utility model, the protective cover is sleeved on the pipettor shell, and when a quail is filled, the protective cover is inserted into the mouth of the quail, so that the mouth of the quail can be prevented from being closed, and the pollution of the quail to the pipettor body or the damage of the pipettor body can be prevented.

Description

Experimental pipettor of using

Technical Field

The utility model relates to the technical field of pipettors, in particular to a pipette for testing.

Background

The liquid transfer device, also called a liquid transfer gun, is a metering tool for transferring liquid from an original container to another container within a certain range. Is widely applied to the fields of biology, chemistry and the like. In the original medicine is to this quail acute oral toxicity test of japanese, need first join in marriage original medicine, then with former medicine with the pipettor suck the back feeding quail mouth, need directly orally fill the toxicant contamination to the quail with former medicine when feeding the quail, need insert the pipettor in the quail mouth at the in-process of filling, because the switching of uncontrollable quail mouth, inserting the pipettor in the quail mouth in the back, the quail probably can be with the mouth pecking the pipettor, lead to pipettor pollution or damage, influence follow-up experimental progress.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to providing a pipette for testing, which overcomes the above-mentioned disadvantages of the prior art.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

the utility model provides an experimental pipettor, includes the pipettor body, the pipettor body includes the pipettor shell and sets up in the suction head of pipettor shell lower extreme, the suction head is linked together with the inside of pipettor shell, the cover is equipped with the suction nozzle on the suction head, the cover is equipped with the safety cover on the pipettor shell, the safety cover is including the support ring that the cover was located the collar on the pipettor shell and was located collar below, the diameter of support ring is less than the diameter of collar, be provided with branch, it is a plurality of between collar and the support ring branch evenly sets up along the circumferencial direction, the suction nozzle sets up between a plurality of branches.

Furthermore, an annular clamping groove is formed in the outer wall of the suction head, a first sealing ring is arranged in the annular clamping groove, and the first sealing ring is located between the suction head and the suction nozzle.

Furthermore, a sealing gasket is arranged on the inner wall of the mounting ring.

Further, the protective cover is made of polyethylene materials.

Furthermore, an observation window is arranged on the shell of the liquid transfer device.

Further, a pipette finger hook is further arranged on the pipette shell.

Furthermore, a piston is arranged in the pipettor shell in a sliding mode, a push-pull rod is fixedly arranged on the piston, and the upper end of the push-pull rod extends to the outside of the pipettor shell and is fixedly connected with the pressing block.

Further, a second sealing ring is sleeved on the piston.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the suction nozzle is sleeved on the suction head, the liquid transfer device sucks the prepared raw medicine into the liquid transfer device body, and the raw medicine in the liquid transfer device body can be observed through the observation window; on locating the pipettor shell with the safety cover afterwards, because the diameter of collar is greater than the diameter of support ring, consequently the safety cover is big-end-up's toper structure, inserts the safety cover in the quail mouth afterwards, presses down the briquetting, makes former medicine drip to the quail mouth in following the pipettor to the realization is to pouring into of quail. Because the safety cover is made for the polyethylene, and the material is harder, therefore the mouth of quail is blocked unable closure to unable and the suction nozzle contact prevents the pollution or the damage of pipettor, is that follow-up experiment can go on smoothly.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a schematic perspective view of a pipette body of the present invention;

fig. 5 is a perspective view of the protective cover of the present invention.

In the figure: the liquid transfer device comprises a liquid transfer device body 1, a liquid transfer device shell 2, a suction head 3, a suction nozzle 4, a protective cover 5, a mounting ring 6, a support ring 7, a support rod 8, a first sealing ring 9, a sealing gasket 10, an observation window 11, a liquid transfer device finger hook 12, a piston 13, a push-pull rod 14, a pressing block 15 and a second sealing ring 16.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

Referring to fig. 1 to 5, a pipette for a test includes a pipette body 1, the pipette body 1 includes a pipette housing 2 and a suction head 3 disposed at a lower end of the pipette housing 2, the suction head 3 is communicated with the inside of the pipettor shell 2, a suction nozzle 4 is sleeved on the suction head 3, the pipette shell 2 is sleeved with a protective cover 5, the protective cover 5 comprises a mounting ring 6 sleeved on the pipette shell 2 and a support ring 7 positioned below the mounting ring 6, the diameter of the supporting ring 7 is smaller than that of the mounting ring 6, the supporting rods 8 are arranged between the mounting ring 6 and the supporting ring 7, the supporting rods 8 are uniformly arranged along the circumferential direction, since the diameter of the support ring 7 is smaller than that of the mounting ring 6, the protective cover 5 has a tapered structure with a large top and a small bottom, and the suction nozzle 4 is arranged between the plurality of struts 8.

First cup joint suction nozzle 4 on aspirator tip 3, absorb former medicine with pipettor body 1, locate pipettor shell 2 with 5 covers of safety cover afterwards, the tester inserts the quail mouth with the lower extreme of safety cover 5 in, extrude former medicine in the pipettor body 1, accomplish the work of filling to the quail, because 5 cards of safety cover are in the quail mouth, make the unable closure of mouth of quail, thereby the quail can't contact with suction nozzle 4 or pipettor body 1, prevent pollution or damage pipettor body 1 to pipettor body 1.

Furthermore, an annular clamping groove is formed in the outer wall of the suction head 3, a first sealing ring 9 is arranged in the annular clamping groove, and the first sealing ring 9 is located between the suction head 3 and the suction nozzle 4; the sealing performance is stronger, and the leakage of the original medicine caused by sucking or discharging the original medicine is prevented.

Further, the inner wall of the mounting ring 6 is provided with a sealing gasket 10, so that the friction force between the protective cover 5 and the pipette shell 2 is enhanced, and the separation of the protective cover and the pipette shell is prevented.

Further, the protection cover 5 is made of polyethylene, so that the protection cover 5 is not easy to deform and is lighter and lower in cost.

Furthermore, an observation window 11 is arranged on the pipettor shell 2, so that the condition of the technical materials in the pipettor body 1 can be observed.

Further, a pipette finger hook 12 is further arranged on the pipette shell 2, so that the test personnel can conveniently hold the pipette.

Further, a piston 13 is slidably arranged in the pipette housing 2, a push-pull rod 14 is fixedly arranged on the piston 13, and the upper end of the push-pull rod 14 extends to the outside of the pipette housing 2 and is fixedly connected with a pressing block 15.

Further, a second sealing ring 16 is sleeved on the piston 13.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (8)

1. A test pipette comprises a pipette body (1), and is characterized in that the pipette body (1) comprises a pipette shell (2) and a suction head (3) arranged at the lower end of the pipette shell (2), the suction head (3) is communicated with the interior of the pipettor shell (2), a suction nozzle (4) is sleeved on the suction head (3), the pipette shell (2) is sleeved with a protective cover (5), the protective cover (5) comprises a mounting ring (6) sleeved on the pipette shell (2) and a support ring (7) positioned below the mounting ring (6), the diameter of support ring (7) is less than the diameter of collar (6), be provided with branch (8) between collar (6) and support ring (7), it is a plurality of branch (8) evenly set up along the circumferencial direction, suction nozzle (4) set up between a plurality of branch (8).

2. The pipette for testing according to claim 1, wherein an annular groove is formed in an outer wall of the suction head (3), a first sealing ring (9) is arranged in the annular groove, and the first sealing ring (9) is located between the suction head (3) and the suction nozzle (4).

3. A test pipette according to claim 1, characterised in that the inner wall of the mounting ring (6) is provided with a sealing gasket (10).

4. A test pipette according to claim 1, characterised in that the protective cap (5) is made of polyethylene.

5. A test pipette according to claim 1, characterised in that the pipette housing (2) is provided with a viewing window (11).

6. A test pipette according to claim 1, characterised in that a pipette finger hook (12) is also provided on the pipette housing (2).

7. The test pipette according to claim 1, wherein a piston (13) is slidably disposed in the pipette housing (2), a push-pull rod (14) is fixedly disposed on the piston (13), and an upper end of the push-pull rod (14) extends to the outside of the pipette housing (2) and is fixedly connected with the pressing block (15).

8. A test pipette according to claim 7, characterised in that the piston (13) is fitted with a second sealing ring (16).

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