CN218047983U

CN218047983U - Self-closing pipette for drug analysis

Info

Publication number: CN218047983U
Application number: CN202221787032.7U
Authority: CN
Inventors: 段照亮; 张彦伦; 蒲蒙蒙
Original assignee: Zhengzhou Aiweidi Medical Laboratory Co ltd
Current assignee: Zhengzhou Aiweidi Medical Laboratory Co ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-12-16
Anticipated expiration: 2032-07-12

Abstract

The utility model discloses a self-closing pipette for pharmaceutical analysis, including the pipette body, the bottom intercommunication of pipette body has the pipette, the top fixed mounting of pipette body has the back-off, the top fixedly connected with self-closing elasticity valve of pipette body inner chamber, the top of self-closing elasticity valve is provided with the puncture pipe. The utility model discloses a set up the box, the fly leaf, the sliding sleeve, the slide bar, reset spring, the pull rod, the pull ring, remove the post, the movable plate, the semicircle fixture block, the draw-in groove, first spout, first slider, the card post, the second spout, second slider and the sealed pad of buffering mutually support, the advantage that sealing performance is good to the self-closing pipette has been reached, make the self-closing pipette when using, can effectual improvement self-closing pipette's sealing performance, the problem that spills appears in the self-closing pipette in liquid has been avoided, the person of facilitating the use uses, can satisfy the in-service use demand.

Description

Self-closing pipette for drug analysis

Technical Field

The utility model relates to a pharmaceutical analysis technical field specifically is a self-closing pipette for pharmaceutical analysis.

Background

The pharmaceutical analysis is a subject of chemical, physical, biological and microbiological methods and techniques to study and study the chemical examination of the drug, the drug stability, the bioavailability, the clinical monitoring of the drug and the qualitative and quantitative analysis of the effective components of Chinese herbs, and includes the chemical examination of the finished drug, the quality control of the drug production process, the quality inspection of the drug storage process, the clinical drug analysis, the in vivo drug analysis, and so on.

When the medicine is analyzed, a self-closing pipette is needed, and the current self-closing pipette has the following defects: the existing self-closing pipette has poor sealing performance, so that when the self-closing pipette is used, liquid is easy to leak out of the self-closing pipette due to poor sealing effect, and the liquid cannot meet the actual use requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a self-closing pipette for pharmaceutical analysis possesses the advantage good to self-closing pipette sealing performance, has solved current self-closing pipette sealing performance relatively poor, leads to self-closing pipette when using, because sealed effect is relatively poor, causes the problem that liquid appears spilling in the self-closing pipette easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a from closed pipette for pharmaceutical analysis, includes the pipette body, the bottom intercommunication of pipette body has the pipette, the top fixed mounting of pipette body has the back-off, the top fixedly connected with self-closed elastic valve of pipette body inner chamber, the top of self-closed elastic valve is provided with the puncture pipe, the top of puncture pipe is run through to the top of back-off and is communicated with there is the aurilave, the equal fixedly connected with box in both sides at back-off top, the inner chamber of box is provided with the fly leaf, the equal fixedly connected with sliding sleeve in top and the bottom of fly leaf, the inner chamber sliding connection of sliding sleeve has the slide bar, the outer end of slide bar and the inner wall fixed connection of box, the surperficial cover of slide bar is equipped with reset spring, the outside fixedly connected with pull rod of fly leaf, the outer end of pull rod runs through to the outside and the fixedly connected with pull ring of box, the inboard fixedly connected with of fly leaf removes the post, the inner of removal post runs through to the inboard and fixedly connected with the movable plate of box, the inboard fixedly connected with semicircle fixture block, the draw-in groove has all been seted up to the both sides at the top of removal top of box inboard, first spout is seted up to the first slider, the inner chamber of first slide block is connected with draw-in one side of first spout, the first slide block of first slide block is connected with draw-in the bottom of slide block.

Preferably, the top and the bottom of the interior of the box body are both provided with a second sliding groove, the inner cavity of the second sliding groove is connected with a second sliding block in a sliding manner, and the inner side of the second sliding block is fixedly connected with the outer side of the sliding sleeve.

Preferably, the inner cavity of the semicircular fixture block is connected with a buffer sealing gasket in an adhesion mode, the buffer sealing gasket is made of buffer rubber, and the inner cavity of the buffer sealing gasket is in contact with the surface of the puncture tube.

Preferably, the outer side of the box body is provided with a first through groove, and the diameter of the inner cavity of the first through groove is larger than that of the pull rod.

Preferably, a second through groove is formed in the inner side of the box body, and the diameter of the inner cavity of the second through groove is larger than that of the moving column.

Preferably, the inner end of the return spring is fixedly connected with the surface of the sliding sleeve, and the outer end of the return spring is fixedly connected with the inner wall of the box body.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up the box, the fly leaf, the sliding sleeve, the slide bar, reset spring, the pull rod, the pull ring, remove the post, the movable plate, the semicircle fixture block, the draw-in groove, first spout, first slider, the card post, the second spout, second slider and the sealed pad of buffering mutually support, the advantage that sealing performance is good to the self-closing pipette has been reached, make the self-closing pipette when using, can effectual improvement self-closing pipette's sealing performance, the problem that spills appears in the self-closing pipette in liquid has been avoided, the person of facilitating the use uses, can satisfy the in-service use demand.

2. The utility model discloses a set up sliding sleeve and slide bar, play the effect that the removal is stable when removing to the fly leaf, through setting up reset spring, play the effect that elasticity resets to sliding sleeve and fly leaf, through setting up pull rod and pull ring, play the effect that conveniently stimulates the fly leaf and remove, through setting up semicircular fixture block and buffer gasket, play sealed effect to the gap between puncture pipe and the back-off, through setting up draw-in groove and card post, play the spacing effect of chucking to removing the post, through setting up first spout and first slider, play the effect of convenient removal to the card post, through setting up second spout and second slider, play the stable effect when removing to the sliding sleeve.

Drawings

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

FIG. 2 is an enlarged view of the cross section of the internal structure of the case body of the present invention;

fig. 3 is an enlarged view of the top view of the structure of the present invention.

In the figure: 1. a pipette body; 2. a pipette; 3. reversing; 4. a self-closing elastic valve; 5. a puncture tube; 6. washing ear balls; 7. a box body; 8. a movable plate; 9. a sliding sleeve; 10. a slide bar; 11. a return spring; 12. a pull rod; 13. a pull ring; 14. moving the column; 15. moving the plate; 16. a semicircular clamping block; 17. a card slot; 18. a first chute; 19. a first slider; 20. clamping the column; 21. a second chute; 22. a second slider; 23. a cushion gasket.

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.

Referring to fig. 1-3, a self-closing pipette for drug analysis comprises a pipette body 1, a pipette 2 is connected to the bottom of the pipette body 1, an inverted buckle 3 is fixedly installed on the top of the pipette body 1, a self-closing elastic valve 4 is fixedly connected to the top of an inner cavity of the pipette body 1, a puncture tube 5 is arranged on the top of the self-closing elastic valve 4, the top of the puncture tube 5 penetrates through the top of the inverted buckle 3 and is communicated with an ear washing ball 6, two sides of the top of the inverted buckle 3 are fixedly connected with a box 7, an inner cavity of the box 7 is provided with a movable plate 8, the top and the bottom of the movable plate 8 are both fixedly connected with a sliding sleeve 9, an inner cavity of the sliding sleeve 9 is slidably connected with a sliding rod 10, the outer end of the sliding rod 10 is fixedly connected with the inner wall of the box 7, a return spring 11 is sleeved on the surface of the sliding rod 10, a pull rod 12 is fixedly connected to the outer side of the movable plate 8, the outer end of the pull rod 12 penetrates through the outer side of the box 7 and is fixedly connected with a pull ring 13, the inner side of the movable plate 8 is fixedly connected with a movable column 14, the inner end of the movable column 14 penetrates through the inner side of the box body 7 and is fixedly connected with a movable plate 15, the inner side of the movable plate 15 is fixedly connected with a semicircular fixture block 16, both sides of the top of the movable column 14 are respectively provided with a clamping groove 17, the top of the inner side of the box body 7 is provided with a first sliding groove 18, an inner cavity of the first sliding groove 18 is slidably connected with a first sliding block 19, one side of the first sliding block 19, which is far away from the first sliding groove 18, is fixedly connected with a clamping column 20, the bottom end of the clamping column 20 penetrates through the inner cavity of the clamping groove 17, the top and the bottom of the inner part of the box body 7 are respectively provided with a second sliding groove 21, an inner cavity of the second sliding groove 21 is slidably connected with a second sliding block 22, the inner side of the second sliding block 22 is fixedly connected with the outer side of the sliding sleeve 9, a buffer sealing gasket 23 is bonded with the inner cavity of the semicircular fixture block 16, and the buffer sealing gasket 23 is made of buffer rubber, the inner cavity of the buffer sealing gasket 23 is contacted with the surface of the puncture tube 5, the outer side of the box body 7 is provided with a first through groove, the diameter of the inner cavity of the first through groove is larger than that of the pull rod 12, the inner side of the box body 7 is provided with a second through groove, the diameter of the inner cavity of the second through groove is larger than that of the movable column 14, the inner end of the reset spring 11 is fixedly connected with the surface of the sliding sleeve 9, the outer end of the reset spring 11 is fixedly connected with the inner wall of the box body 7, the movable plate 8 is stabilized during movement by arranging the sliding sleeve 9 and the sliding rod 10, the reset spring 11 plays a role in elastic reset for the sliding sleeve 9 and the movable plate 8, the pull rod 12 and the pull ring 13 are arranged to play a role in conveniently pulling the movable plate 8 to move, and the semicircular clamping block 16 and the buffer sealing gasket 23 are arranged to play a role in sealing a gap between the puncture tube 5 and the back-off 3, the self-closing pipette has the advantages of good sealing performance for the self-closing pipette by arranging the clamping groove 17 and the clamping column 20 to play a role in clamping and limiting the moving column 14, conveniently moving the clamping column 20 by arranging the first sliding groove 18 and the first sliding block 19, stably moving the sliding sleeve 9 by arranging the second sliding groove 21 and the second sliding block 22, and mutually matching the box body 7, the movable plate 8, the sliding sleeve 9, the sliding rod 10, the reset spring 11, the pull rod 12, the pull ring 13, the moving column 14, the movable plate 15, the semicircular clamping block 16, the clamping groove 17, the first sliding groove 18, the first sliding block 19, the clamping column 20, the second sliding groove 21, the second sliding block 22 and the buffer sealing gasket 23, so that the self-closing pipette can effectively improve the sealing performance of the self-closing pipette when in use, avoid the problem of liquid leakage in the self-closing pipette and is convenient for users to use, can meet the actual use requirement.

When the self-closing pipette is used, firstly, the clamping column 20 is pulled, the clamping column 20 moves to drive the first sliding block 19 to slide in the inner cavity of the first sliding groove 18, the clamping column 20 leaves the inner cavity of the inner clamping groove 17, then the pull ring 13 is loosened to reset the sliding sleeve 9, the movable plate 8, the pull rod 12 and the pull ring 13 through the elastic force of the reset spring 11, the pull ring 13 moves to drive the pull rod 12 to start moving and resetting, the pull rod 12 moves to drive the movable plate 8 to start moving and resetting, the movable plate 8 moves to drive the movable column 14 to reset, the movable plate 15, the semicircular clamping block 16 and the buffer sealing gasket 23 are driven by the movable column 14 to clamp the surface of the puncture tube 5, meanwhile, the buffer sealing gasket 23 seals a gap between the puncture tube 5 and the back-off buckle 3, then the clamping column 20 is pushed, the clamping column 20 moves to drive the first sliding block 19 to slide in the inner cavity of the first sliding groove 18, the clamping column 20 is clamped in the inner cavity of the outer clamping groove 17, and the movable column 14 is limited, and therefore the advantage of good sealing performance of the self-closing pipette is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A self-closing pipette for pharmaceutical analysis, comprising a pipette body (1), characterized in that: the bottom of the pipette body (1) is communicated with a pipette (2), the top of the pipette body (1) is fixedly provided with an inverted buckle (3), the top of the inner cavity of the pipette body (1) is fixedly connected with a self-closing elastic valve (4), the top of the self-closing elastic valve (4) is provided with a puncture tube (5), the top of the puncture tube (5) penetrates through the top of the inverted buckle (3) and is communicated with a ear washing ball (6), two sides of the top of the inverted buckle (3) are fixedly connected with a box body (7), the inner cavity of the box body (7) is provided with a movable plate (8), the top and the bottom of the movable plate (8) are fixedly connected with a sliding sleeve (9), the inner cavity of the sliding sleeve (9) is slidably connected with a sliding rod (10), the outer end of the sliding rod (10) is fixedly connected with the inner wall of the box body (7), a surface reset spring (11) of the sliding rod (10), the outer side of the movable plate (8) is fixedly connected with a pull rod (12), the outer end of the pull rod (12) penetrates through the outer end of the box body (7) and is fixedly connected with a pull ring (13), the inner side of the movable plate (8) is connected with a movable plate (14) and the inner side of the movable plate (14) is connected with an inner side of the movable plate (7), inboard fixedly connected with semicircle fixture block (16) of movable plate (15), draw-in groove (17) have all been seted up to the both sides at removal post (14) top, first spout (18) have been seted up at the inboard top of box (7), the inner chamber sliding connection of first spout (18) has first slider (19), one side fixedly connected with card post (20) of first spout (18) are kept away from in first slider (19), the inner chamber to draw-in groove (17) is run through to the bottom of card post (20).

2. A self-closing pipette for use in drug analysis according to claim 1, characterised in that: second spout (21) have all been seted up to the inside top of box (7) and bottom, the inner chamber sliding connection of second spout (21) has second slider (22), the inboard outside fixed connection with sliding sleeve (9) of second slider (22).

3. A self-closing pipette for use in drug analysis according to claim 1, characterised in that: the inner cavity of the semicircular clamping block (16) is connected with a buffer sealing gasket (23) in an adhesion mode, the buffer sealing gasket (23) is made of buffer rubber, and the inner cavity of the buffer sealing gasket (23) is in contact with the surface of the puncture tube (5).

4. A self-closing pipette for use in drug analysis according to claim 1, characterised in that: a first through groove is formed in the outer side of the box body (7), and the diameter of the inner cavity of the first through groove is larger than that of the pull rod (12).

5. A self-closing pipette for use in drug analysis according to claim 1, characterised in that: and a second through groove is formed in the inner side of the box body (7), and the diameter of the inner cavity of the second through groove is larger than that of the movable column (14).

6. A self-closing pipette for use in drug analysis according to claim 1, characterised in that: the inner end of the reset spring (11) is fixedly connected with the surface of the sliding sleeve (9), and the outer end of the reset spring (11) is fixedly connected with the inner wall of the box body (7).