CN211936973U

CN211936973U - Acid and alkali corrosion resistant rapid pipette

Info

Publication number: CN211936973U
Application number: CN202020382125.6U
Authority: CN
Inventors: 尹戈; 金一方; 左文娇; 王琼英; 刘义
Original assignee: Chongqing Dizhiyuan Geological Engineering Testing Co ltd
Current assignee: Chongqing Dizhiyuan Geological Engineering Testing Co ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-11-17
Anticipated expiration: 2030-03-23

Abstract

The utility model relates to an acid and alkali corrosion resistant's quick pipette relates to the technical field that geophysical surveyed, including managing the body, be provided with the scale mark on managing the body, manage and be provided with the pressure boost pipe on managing the body, pressure boost pipe one end is sealed, and the inside intercommunication of pressure boost pipe and pipe body, slides in the pressure boost pipe and be connected with the briquetting with pressure boost pipe adaptation, and the scale mark is located the below of pressure boost pipe and pipe body intercommunication position department. The liquid level adjusting device has the advantage that the liquid level can be adjusted to a required scale mark more easily after reagent is sucked.

Description

Acid and alkali corrosion resistant rapid pipette

Technical Field

The utility model belongs to the technical field of the technique of geophysical survey and specifically relates to a quick pipette of acid and alkali corrosion resistance is related to.

Background

During geological monitoring, the sampled mineral substances are often required to be analyzed in composition, and the reaction liquid is often required to be removed by using a pipette in the process. At present, most pipettes for laboratories are glass tubes which are through up and down and are resistant to acid and alkali corrosion, when the pipettes are used, an aurilave is inserted into a glass tube opening to absorb a reagent, and when the reagent amount in the glass tube reaches or even exceeds a required scale mark, the aurilave is removed, and fingers are used for plugging the glass tube opening; or moving the finger, slowly lowering the liquid level to the required position by the atmospheric pressure, and then moving the reagent into the container. In the process, the liquid level height is adjusted by moving the fingers, but in practice, the liquid level height is difficult to adjust to a proper position, if the fingers are carelessly removed, the reagent leaks out, the reagent needs to be measured again, and the operation is complicated; sometimes, the reagent can splash, and if the reagent is a toxic reagent, the reagent can cause inevitable harm to human bodies.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a quick pipette of acid and alkali corrosion resistance, through set up the pressure boost pipe on managing the body, make it have more easy advantage of adjusting the liquid level to required scale mark department after absorbing reagent.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an acid and alkali corrosion resistant's quick pipette, includes manages the body, manages to be provided with the scale mark on the body, manages to be provided with the pressure boost pipe on the body, and pressure boost pipe one end seals, and pressure boost pipe and the inside intercommunication of pipe body, and the pressure boost intraductal sliding connection has the briquetting with pressure boost pipe adaptation, and the scale mark is located the below of pressure boost pipe and pipe body intercommunication position department.

Through adopting above-mentioned technical scheme, when absorbing reagent, with the open-top mouth intercommunication of aurilave and pipette, then one hand is holding the pipette and is holding the aurilave with another hand, stretches into the bottom of pipette in waiting to take the reagent, then extrudees the aurilave and absorbs reagent to the pipette. The pipette is taken out, the aurilave is rapidly taken down, meanwhile, the top end of the pipette is closed by hands, and at the moment, the pressing block in the pressurizing pipe is pressed downwards, so that redundant reagents in the pipette are extruded out. The finger at the top of the pipette is then removed and the reagent in the pipette is discharged from the bottom end of the pipette.

The present invention may be further configured in a preferred embodiment as: the top rigid coupling of pipe body has the control tube, the control tube separates into mutually independent first portion and second portion with the pipe body, first portion is located the top of second portion, scale mark and pressure boost pipe set up on the pipe body of second position department, the inside rigid coupling of control tube has the division board that separates the inner chamber of control tube into first chamber and second chamber, the one end that the first chamber was kept away from to the second chamber is sealed, first through-hole and second through-hole have been seted up on the outer peripheral face of control tube, first through-hole is located first portion, first through-hole makes first portion and second chamber intercommunication, the second through-hole is located the second portion, and the second through-hole makes first chamber and second portion intercommunication, set up the connecting hole that makes first chamber and second chamber intercommunication on the division board, wear to be equipped with the control lever in the first chamber, the outer peripheral face of control lever pastes with the inner peripheral face of second chamber.

Through adopting above-mentioned technical scheme, after having extracted reagent in the pipette and seal the top of pipette with the hand, through the removal control lever, the connecting hole is sealed with the second through-hole to the control lever, and then makes the top of second portion seal, and the staff can take the finger at pipette top this moment, has liberated staff's finger.

The present invention may be further configured in a preferred embodiment as: the outer peripheral surface of the control rod is in threaded connection with the inner peripheral surface of the first cavity.

By adopting the technical scheme, the control rod can not move after the connecting hole and the second through hole are sealed, so that the situation that the control rod is lack of necessary fixation and moves after the connecting hole and the second through hole are sealed by the control rod is avoided.

The present invention may be further configured in a preferred embodiment as: an elastic pad is fixedly connected to the end face of the control rod, which faces one end of the partition plate.

Through adopting above-mentioned technical scheme, increased the leakproofness between control lever and the division board, and then made the control lever better to the sealed effect of connecting hole.

The present invention may be further configured in a preferred embodiment as: the one end rigid coupling that the control lever deviates from the connecting plate has changeed the board, changes the board and is perpendicular with the control lever, and has seted up anti-skidding stripe on changeing the outer peripheral face of board, and the rigid coupling has the cushion on the terminal surface of control lever towards division board one end, and sealed the pad is sealed when sealed pad and division board contact just in time with the terminal surface subsides of control pipe orientation commentaries on classics board tightly.

Through adopting above-mentioned technical scheme, the board that changes can increase the stress point on the control lever and make more laborsaving when rotatory control lever of staff. Meanwhile, when the sealing gasket is in contact with the partition plate, the sealing gasket is just attached to the end face, facing the rotating plate, of the control tube, and the rotating plate and the sealing ring can seal the first cavity. Air leakage between the second through hole control rod and the second cavity is avoided as much as possible.

The present invention may be further configured in a preferred embodiment as: the pressing block is sleeved with an elastic sleeve.

By adopting the technical scheme, the sealing performance between the briquetting and the pressure increasing pipe is improved, and meanwhile, the friction force between the briquetting and the pressure increasing pipe is increased, so that the briquetting is prevented from moving as far as possible without human intervention.

The present invention may be further configured in a preferred embodiment as: the briquetting is last fixedly connected with the depression bar, and the top rigid coupling of pressure boost pipe has the apron, and the depression bar is worn out from the apron, and the depression bar slides with the apron and is connected.

Through adopting above-mentioned technical scheme, the apron can carry on spacingly to the briquetting, avoids pulling out the briquetting from the pressure tube in upwards pulling the briquetting.

The present invention may be further configured in a preferred embodiment as: the pipe body is provided with a booster pipe, the booster pipe is fixedly connected with the top end of the scale mark, and the booster pipe is communicated with the top end of the pipe body.

Through adopting above-mentioned technical scheme, when absorbing reagent, if make the reagent of this internal absorption of pipe than more carelessly, reagent can get into the cushion chamber this moment, because the diameter ratio of cushion chamber is great, so the cushion chamber can hold more reagent, avoids reagent to enter into the intraductal damage that causes the elastic sleeve of pressure boost as far as.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through set up the pressure boost pipe on managing the body, set up the briquetting in the pressure boost pipe, when absorbing reagent, with the top end opening part intercommunication of aurilave and pipette, then one hand is holding pipette another hand and is holding aurilave, stretches into the bottom of pipette in waiting to take the reagent, then extrudees aurilave and absorbs reagent in the pipette. And taking out the pipette, quickly taking off the aurilave, simultaneously closing the top end of the pipette by hand, and slowly pressing the pressing block in the pressurizing tube downwards at the moment to slowly extrude the redundant reagent in the pipette. Then taking the finger at the top of the pipette away, and enabling the reagent in the pipette to flow out from the bottom end of the pipette;

2. through set up the control tube on the pipe itself, the control tube is separated into first chamber and second chamber by the division board, set up first through-hole and second through-hole on the control tube, set up the connecting hole on the division board, set up the control lever in the first chamber, after having extracted the top that reagent sealed the pipette with the hand, through removing the control lever, the control lever seals connecting hole and second through-hole, and then makes the top of second portion seal, the staff can take away the finger at pipette top this moment, staff's finger has been liberated.

Drawings

Fig. 1 is a front view of a pipette in this embodiment;

FIG. 2 is a sectional view showing the inner structure of the pipette in this embodiment;

fig. 3 is a partially enlarged view of a portion a in fig. 2;

fig. 4 is a partially enlarged view of a portion B in fig. 2.

In the figure, 1, a tube body; 11. a first part; 12. a second section; 121. scale lines; 13. a buffer chamber; 2. a control tube; 21. a first chamber; 211. a second through hole; 22. a second chamber; 221. a first through hole; 3. a partition plate; 31. connecting holes; 4. a control lever; 41. an elastic pad; 42. rotating the plate; 421. anti-skid stripes; 422. a seal ring; 5. a pressure increasing pipe; 51. a connecting pipe; 52. briquetting; 521. a pressure lever; 5211. a stress plate; 522. an elastic sleeve; 53. a cover plate; 6. washing the ear ball.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an acid and alkali corrosion resistant pipette, be circular shape pipe body 1 including the cross-section, pipe body 1 open-top, the bottom of pipe body 1 sets up to the opening of sharp mouth form, is provided with scale mark 121 on the outer peripheral face of pipe body 1. The top rigid coupling of pipe body 1 has control pipe 2, and control pipe 2 wears to establish on pipe body 1, and control pipe 2 is perpendicular with pipe body 1, and control pipe 2 separates into first portion 11 and the second portion 12 of mutual independence with pipe body 1, and first portion 11 is located the top of second portion 12. The graduation marks 121 are provided on the second portion 12.

Referring to fig. 2 and 3, a partition plate 3 for partitioning an inner cavity of the control tube 2 into a first cavity 21 and a second cavity 22 is fixedly connected to the inside of the control tube 2, and one end of the second cavity 22, which is far away from the first cavity 21, is closed. The control tube 2 has a first through hole 221 and a second through hole 211 formed on the outer circumferential surface thereof, the first through hole 221 is located in the first portion 11, and the first through hole 221 communicates the first portion 11 with the second chamber 22. A second through hole 211 is located in the second portion 12, and the second through hole 211 communicates the first chamber 21 with the second portion 12. The partition plate 3 is provided with a connecting hole 31 for communicating the first chamber 21 with the second chamber 22. The control rod 4 penetrates through the first cavity 21, and the outer peripheral surface of the control rod 4 is attached to the inner peripheral surface of the second cavity 22.

Referring to fig. 2 and 4, a connection pipe 51 is fixedly connected to the outer peripheral surface of the pipe body 1, one end of the connection pipe 51 communicates with the second portion 12 of the pipe body 1, the other end of the connection pipe 51 is fixedly connected with a pressure increasing pipe 5, the pressure increasing pipe 5 is parallel to the pipe body 1, and the pressure increasing pipe 5 communicates with the connection pipe 51. A pressing block 52 is connected in the pressure pipe 5 in a sliding manner, and a pressing rod 521 is fixedly connected to the upper surface of the pressing block 52.

When the pipette is used, the aurilave 6 is connected to the opening at the top end of the pipette, then one hand holds the pipette, the other hand holds the aurilave 6, the bottom end of the pipette is extended into a reagent to be taken, and then the aurilave 6 is squeezed to suck the reagent into the pipette. Take out the pipette, when taking off aurilave 6 fast, seal the top of pipette with the hand, then through removal control lever 4, connecting hole 31 and second through-hole 211 are sealed to control lever 4, and then make the top of second portion 12 seal, and the staff can take away the finger at pipette top this moment, and briquetting 52 in the booster tube 5 is pressed downwards to the rethread this moment for unnecessary reagent in the pipette is extruded. The control rod 4 will then be moved so that the connection hole 31 and the second through hole 211 are open, at which time the first part 11 and the second part 12 in the pipette are in communication and the reagent in the pipette flows out of the bottom end of the pipette.

Referring to fig. 3, an external thread is formed on an outer circumferential surface of the control rod 4, an internal thread is formed on an inner circumferential surface of the second cavity 22 of the control tube 2, and the control rod 4 and the control tube 2 are in threaded connection, so that the control rod 4 does not move after the connection hole 31 and the second through hole 211 are sealed, and thus the control rod 4 is prevented from being lack of necessary fixation and moving after the connection hole 31 and the second through hole 211 are sealed by the control rod 4.

The end face of the control rod 4 facing one end of the partition plate 3 is fixedly connected with an elastic pad 41, so that the sealing performance between the control rod 4 and the partition plate 3 is improved, and the sealing effect of the control rod 4 on the connecting hole 31 is better.

One end of the control rod 4 departing from the connecting plate is fixedly connected with a rotating plate 42, the rotating plate 42 is perpendicular to the control rod 4, and the outer peripheral surface of the rotating plate 42 is provided with anti-skid stripes 421. The rotation plate 42 can increase the force bearing point on the control rod 4 so that the worker can save more labor when rotating the control rod 4.

The side wall of the rotating plate 42 facing the control tube 2 is fixedly connected with a sealing ring 422, the control rod 4 penetrates through the sealing ring 422, when the sealing gasket is contacted with the separation plate 3, the sealing gasket is just attached to the end face of the control tube 2 facing the rotating plate 42, and at the moment, the rotating plate 42 and the sealing ring 422 can seal the first cavity 21. Air leakage between the second through hole 211 and the through hole control rod 4 and the second chamber 22 is prevented as much as possible.

Referring to fig. 4, the pressing block 52 is sleeved with an elastic sleeve 522, so that the sealing performance between the pressing block 52 and the pressure increasing pipe 5 is increased, and the friction force between the pressing block 52 and the pressure increasing pipe 5 is increased, so that the pressing block 52 is not moved as much as possible without human intervention.

The top end of the pressure pipe 5 is fixedly connected with a cover plate 53, the pressure rod 521 penetrates out of the cover plate 53, the pressure rod 521 is connected with the cover plate 53 in a sliding mode, the cover plate 53 can limit the pressing block 52, and the pressing block 52 is prevented from being pulled out of the pressure pipe 5 when the pressing block 52 is pulled upwards.

One end of the pressing rod 521, which is far away from the pressing block 52, is fixedly connected with a stress plate 5211, the stress plate 5211 is perpendicular to the pressing rod 521, and the stress plate 5211 increases the stress point on the pressing rod 521, so that the labor is saved when the worker presses the pressing rod 521.

Referring to fig. 1 and 2, a cylindrical buffer chamber 13 is provided between a position of the pipe body 1 where the booster pipe 5 communicates with the pipe body 1 and the top end of the scale mark 121, and the diameter of the buffer chamber 13 is larger than the diameter of the pipe body 1 where the scale mark 121 is located. When the reagent is sucked, if the reagent sucked in the tube body 1 is more than needed by carelessness, the reagent can enter the buffer cavity 13 at the moment, and the buffer cavity 13 can contain more reagent because the diameter of the buffer cavity 13 is larger, so that the reagent is prevented from entering the pressure increasing tube 5 as much as possible.

The implementation principle of the embodiment is as follows: when the pipette is used, the aurilave 6 is inserted into the opening at the top end of the pipette, then one hand holds the pipette, the other hand holds the aurilave 6, the bottom end of the pipette is stretched into a reagent to be taken, and then the aurilave 6 is squeezed to suck the reagent into the pipette. Take out the pipette, when taking off aurilave 6 fast, seal the top of pipette with the hand, then through rotating control lever 4, connecting hole 31 and second through-hole 211 are sealed to control lever 4, and then make the top of second portion 12 seal, and the staff can take away the finger at pipette top this moment, and briquetting 52 in the rethread downward movement booster tube 5 makes unnecessary reagent in the pipette extruded this moment. The lever 4 will then be rotated so that the connection hole 31 and the second through hole 211 are open, the first part 11 and the second part 12 in the pipette being in communication, and the reagent in the pipette flowing from the bottom end of the pipette into the corresponding container.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an acid and alkali corrosion resistant rapid pipette, includes pipe body (1), is provided with scale mark (121), its characterized in that on pipe body (1): be provided with pressure boost pipe (5) on pipe body (1), pressure boost pipe (5) one end is sealed, and pressure boost pipe (5) and the inside intercommunication of pipe body (1), and pressure boost pipe (5) internal slipping is connected with briquetting (52) with pressure boost pipe (5) adaptation, and scale mark (121) are located the below of pressure boost pipe (5) and pipe body (1) intercommunication position department.

2. The acid and alkali corrosion resistant micropipette of claim 1, wherein: the top of the tube body (1) is fixedly connected with a control tube (2), the control tube (2) divides the tube body (1) into a first part (11) and a second part (12) which are mutually independent, the first part (11) is positioned above the second part (12), a scale mark (121) and a pressure increasing tube (5) are arranged on the tube body (1) at the position of the second part (12), a partition plate (3) which separates an inner cavity of the control tube (2) into a first cavity (21) and a second cavity (22) is fixedly connected inside the control tube (2), one end of the second cavity (22) far away from the first cavity (21) is sealed, the outer peripheral surface of the control tube (2) is provided with a first through hole (221) and a second through hole (211), the first through hole (221) is positioned in the first part (11), the first through hole (221) enables the first part (11) to be communicated with the second cavity (22), and the second through hole (211) is positioned in the second part (12), and the second through hole (211) enables the first cavity (21) to be communicated with the second part (12), the partition plate (3) is provided with a connecting hole (31) which enables the first cavity (21) to be communicated with the second cavity (22), the first cavity (21) is internally provided with the control rod (4) in a penetrating way, and the peripheral surface of the control rod (4) is attached to the inner peripheral surface of the second cavity (22).

3. The acid and alkali corrosion resistant micropipette of claim 2, wherein: the outer peripheral surface of the control rod (4) is in threaded connection with the inner peripheral surface of the first cavity (21).

4. The acid and alkali corrosion resistant micropipette of claim 3, wherein: an elastic pad (41) is fixedly connected to the end face of one end, facing the partition plate (3), of the control rod (4).

5. The acid and alkali corrosion resistant micropipette of claim 4, wherein: one end of the control rod (4) departing from the connecting plate is fixedly connected with a rotating plate (42), the rotating plate (42) is perpendicular to the control rod (4), the outer peripheral surface of the rotating plate (42) is provided with anti-skid stripes (421), and the end surface of the control rod (4) facing one end of the partition plate (3) is fixedly connected with an elastic pad (41).

6. The acid and alkali corrosion resistant micropipette of claim 1, wherein: the pressing block (52) is sleeved with an elastic sleeve (522).

7. The acid and alkali corrosion resistant micropipette of claim 6, wherein: the pressing block (52) is fixedly connected with a pressing rod (521), the top end of the pressure increasing pipe (5) is fixedly connected with a cover plate (53), the pressing rod (521) penetrates out of the cover plate (53), and the pressing rod (521) is connected with the cover plate (53) in a sliding mode.

8. The acid and alkali corrosion resistant micropipette of claim 1, wherein: a buffer cavity (13) is fixedly connected between the communication position of the booster pipe (5) and the pipe body (1) on the pipe body (1) and the top end of the scale mark (121), and the diameter of the buffer cavity (13) is larger than that of the position of the scale mark (121) on the pipe body (1).