CN114570447A - Dismantle change formula liquid mechanism that moves - Google Patents
Dismantle change formula liquid mechanism that moves Download PDFInfo
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- CN114570447A CN114570447A CN202210293763.4A CN202210293763A CN114570447A CN 114570447 A CN114570447 A CN 114570447A CN 202210293763 A CN202210293763 A CN 202210293763A CN 114570447 A CN114570447 A CN 114570447A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
Abstract
The invention discloses a disassembly and replacement type liquid transfer mechanism, which comprises a lower part screwing mechanism; the lower screwing mechanism is additionally arranged, the bottom screwing ring body is movably screwed on the external thread ring protrusion on the periphery of the lower end of the external support through the internal thread ring protrusion threads on the periphery of the upper end, the sealing is realized by abutting the upper end surface of the sealing ring body against the lower end surface of the external thread ring protrusion, and the lower positioning pipe is fixed on the periphery of the inner part of the bottom screwing ring body through the connecting ring body to realize fixation, so that the lower positioning pipe can be detached and replaced through the bottom screwing ring body, different volume specification requirements are met, and the use is more flexible.
Description
Technical Field
The invention relates to a detachable and replaceable liquid transfer mechanism.
Background
At present, the existing pipette is a common tool used in medical departments such as hospitals for analyzing liquid, and the structure of the pipette generally comprises a top air bag, an external sleeve and a pipette, wherein the external sleeve is arranged at the lower end of the top air bag, then a pipette is arranged in the outer sleeve, the lower end of the pipette extends to the outside of the lower end of the outer sleeve, and the lower end of the pipette is pressed by the air bag, then the lower end of the pipette is sent into the collected liquid, then the air bag is released, so that the liquid enters the pipette, the liquid is collected and then the top air bag is extruded to drain the liquid in the liquid-moving pipe, however, the liquid transfer device with the structure can only collect liquid with one range, so when the liquid with two ranges needs to be collected, different collecting devices need to be replaced, so make the flexibility of use relatively poor, need realize dismantling the structure expansion function of changing various specifications in addition.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: the utility model provides a can dismantle change formula of changing liquid-transfering mechanism that changes specification, two kinds of ranges of collection can be dismantled.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a disassembly and replacement type liquid transfer mechanism comprises a top air bag, an external bracket, a liquid storage assembly, a separation driving mechanism and a lower rotary connection mechanism; the outer bracket is of an annular cylinder structure; the lower screwing mechanism comprises an external thread ring bulge, a bottom screwing ring body, an internal thread ring bulge and a sealing ring body; the periphery of the lower end of the external support is provided with an external thread ring protrusion; an internal thread ring protrusion is arranged on the periphery of the upper end of the bottom screwing ring body, and a sealing ring body is arranged on the upper end face of the bottom screwing ring body on the inner side of the periphery of the internal thread ring protrusion; the convex threads of the internal thread ring are screwed on the outer sides of the periphery of the convex of the external thread ring; the upper end surface of the sealing ring body is abutted against the lower end surface of the external thread ring protrusion; the top air bag is arranged in the middle of the upper end of the external bracket; the liquid storage assembly is arranged between the external support and the inner part of the bottom screwing ring body and is positioned below the top airbag; the liquid storage assembly comprises an upper connecting pipe, a closed ring body, a telescopic pipe body, a middle floating pipe, a lower positioning pipe and a connecting ring body; the upper connecting pipe is arranged above the inside of the external bracket, and the upper end of the upper connecting pipe is communicated with the lower end of the top airbag; the periphery outer side of the upper connecting pipe is provided with a closed ring body, the periphery inner side of the upper end of the closed ring body is connected with the periphery outer side of the upper connecting pipe, and the periphery outer side of the lower end of the closed ring body is connected with the periphery inner side of the external support; the lower end of the upper connecting pipe is connected with a telescopic pipe body; the lower end of the telescopic pipe body is provided with a middle floating pipe; the upper end of the lower positioning pipe extends to the middle of the inside of the bottom screwing ring body in a penetrating manner; the connecting ring body is arranged on the outer side of the periphery of the lower positioning pipe, and the outer side of the periphery of the connecting ring body is fixed on the periphery of the inner part of the bottom rotary connecting ring body; a plurality of vent holes are uniformly formed in the periphery of the connecting ring body; the upper end of the lower positioning pipe is positioned at the lower end of the middle floating pipe; a separation driving mechanism is arranged around the external bracket; the separation driving mechanism drives the middle floating pipe to float up and down in the outer support and the bottom rotary connection ring body, and drives the lower end of the middle floating pipe to be in sealing butt joint with or separated from the upper end of the lower positioning pipe.
Further, the separation driving mechanism comprises a transverse connecting rod, a floating block, a driving screw rod and an extension rod; a plurality of transverse connecting rods are uniformly arranged on four sides of the middle floating pipe respectively; the outer ends of the transverse connecting rods are respectively provided with a floating block; a plurality of longitudinal sliding grooves are uniformly formed in the four sides of the middle of the interior of the outer support; the floating blocks at the outer ends of the transverse connecting rods are respectively connected in the longitudinal sliding grooves in a vertically sliding and clamping manner; the floating blocks are respectively provided with threaded holes, and the threaded holes are respectively screwed with a driving screw; the lower end of the driving screw is rotatably clamped at the lower end of the longitudinal sliding groove, and the upper end of the driving screw is connected in a penetrating mode through a penetrating rod and extends to the side portion of the upper end of the external support 1.
Further, the separation driving mechanism also comprises a driving ring gear and an inner side meshing gear; the upper ends of the penetrating connecting rods are respectively provided with an inner side meshing gear, and the outer sides of the peripheries of a plurality of inner side meshing gears are jointly meshed and connected with a driving ring gear; the lower end of the driving ring gear is rotatably clamped and installed around the upper end of the external support.
Furthermore, two sides of the lower end of the driving ring gear are respectively provided with a rotary clamping tooth; the periphery of the upper end of the external bracket is provided with an annular clamping groove; the driving ring teeth are rotationally clamped on the annular clamping grooves on the periphery of the upper end of the external support through the rotary clamping teeth on the two sides of the lower end.
Further, the driving screw rods are respectively sleeved with abutting elastic bodies; the upper end and the lower end of the abutting elastic body are respectively elastically abutted between the inner upper side wall of the longitudinal sliding groove and the upper end of the floating block.
Further, a rotary limiting block is arranged at the lower end of the driving screw rod; the lower end of the longitudinal sliding groove is provided with a rotary limiting groove; the rotary limiting block is rotatably clamped on the rotary limiting groove.
Furthermore, a positioning tube is arranged on the lower side of the top airbag; two sides of the positioning pipe are respectively provided with a positioning rod; the positioning pipes are fixedly connected to two sides of the upper end of the external support through positioning rods on two sides.
Furthermore, a lower sealing ring body is arranged around the lower end of the middle floating pipe; an upper sealing ring body is arranged around the upper end of the lower positioning pipe; the middle floating pipe is connected with the upper sealing ring body on the periphery of the upper end of the lower positioning pipe in a sealing and abutting mode or in a separating mode through the lower sealing ring body on the periphery of the lower end of the middle floating pipe.
Furthermore, conical ring grooves with large upper parts and small lower parts are arranged on the periphery of the connecting ring body; and a plurality of vent holes are uniformly formed in the bottom of the conical ring groove.
Further, the closed ring body is of a conical ring body structure with a small upper part and a big lower part; the telescopic pipe body is made of a corrugated pipe material.
The invention has the following beneficial effects:
1. the lower screwing mechanism is additionally arranged, the bottom screwing ring body is movably screwed on the external thread ring protrusion on the periphery of the lower end of the external support through the internal thread ring protrusion threads on the periphery of the upper end, the sealing is realized by abutting the upper end surface of the sealing ring body against the lower end surface of the external thread ring protrusion, and the lower positioning pipe is fixed on the periphery of the inner part of the bottom screwing ring body through the connecting ring body to realize fixation, so that the lower positioning pipe can be detached and replaced through the bottom screwing ring body, different volume specification requirements are met, and the use is more flexible.
2. The invention can realize the mode of integrated suction and separation discharge to discharge liquid, so that the liquid can be discharged into two sizes successively, and the operation requirement of a liquid transfer device is met, firstly, the middle floating tube is driven downwards, the lower end of the middle floating tube is in sealed butt joint with the upper end of the lower positioning tube, so that a liquid collecting channel of the upper connecting tube, the middle floating tube, the telescopic tube body and the lower positioning tube is formed, then, the top airbag is extruded, so that the liquid enters from the lower positioning tube, the middle floating tube, the telescopic tube body and the upper connecting tube are filled in sequence, a plurality of residual liquids can overflow from the upper end of the upper connecting tube to the periphery of the upper end of the closed ring body, the collection is completed, then, the middle floating tube is driven to move upwards, so that the lower end of the middle floating tube is separated from the upper end of the lower positioning tube, an annular ventilation gap is formed, so that the liquid in the lower positioning tube is directly extruded downwards through the ventilation hole of the connecting ring body under the external atmospheric pressure, realize discharge liquid for the first time, then drive the middle floating pipe downwards once more for the lower extreme of middle floating pipe and the sealed butt in upper end of lower registration arm realize adopting the closure of liquid passageway, extrude the top gasbag at last, make and store in the inside liquid of last connecting pipe, flexible body, middle floating pipe and discharge through registration arm down downwards, so realized twice not liquid discharge of voluminous.
3. According to the invention, the ring gear is driven to rotate, the plurality of inner side meshing gears are synchronously driven to rotate, and then the floating block is driven to slide up and down in the longitudinal sliding groove of the outer support, so that the middle floating pipe is driven to move up and down through the transverse connecting rod, the driving convenience is improved, the driving structure is extended upwards, and the liquid is prevented from being contacted.
Drawings
FIG. 1 is a schematic view showing the structure of the intermediate floating pipe and the lower positioning pipe in sealing contact with each other according to the present invention.
FIG. 2 is a schematic view showing the structure of the present invention in which the intermediate floating pipe and the lower positioning pipe are separated from each other.
Fig. 3 is a partially enlarged structural view of fig. 1 according to the present invention.
Fig. 4 is a partially enlarged structural view of fig. 2 according to the present invention.
FIG. 5 is an enlarged view of a portion of FIG. 3 according to the present invention.
Fig. 6 is a partially enlarged structural view of the lower screwing mechanism of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, a detachable and replaceable pipetting mechanism comprises a top airbag 2, an external bracket 1, a liquid storage assembly 3, a separation driving mechanism 4 and a lower screwing mechanism 5; the outer bracket 1 is of an annular cylinder structure; the lower screwing mechanism 5 comprises an external thread ring protrusion 53, a bottom screwing ring body 51, an internal thread ring protrusion 52 and a sealing ring body 54; the periphery of the lower end of the external bracket 1 is provided with an external thread ring bulge 53; an internal thread ring protrusion 52 is arranged on the periphery of the upper end of the bottom screwing ring body 51, and a sealing ring body 54 is arranged on the upper end surface of the bottom screwing ring body 51 on the inner side of the periphery of the internal thread ring protrusion 52; the internal thread ring bulge 52 is screwed on the outer side of the periphery of the external thread ring bulge 53; the upper end surface of the sealing ring body 54 is abutted against the lower end surface of the external thread ring protrusion 53; the top airbag 2 is arranged in the middle of the upper end of the external bracket 1; the liquid storage component 3 is arranged between the external bracket 1 and the inner part of the bottom screwing ring body 51 and is positioned below the top airbag 2; the liquid storage component 3 comprises an upper connecting pipe 31, a closed ring body 35, a telescopic pipe body 32, a middle floating pipe 33, a lower positioning pipe 34 and a connecting ring body 36; the upper connecting pipe 31 is arranged above the inside of the external bracket 1, and the upper end of the upper connecting pipe 31 is communicated with the lower end of the top airbag 2; the peripheral outer side of the upper connecting pipe 31 is provided with a closed ring body 35, the peripheral inner side of the upper end of the closed ring body 35 is connected to the peripheral outer side of the upper connecting pipe 31, and the peripheral outer side of the lower end of the closed ring body 35 is connected to the peripheral inner side of the external support 1; the lower end of the upper connecting pipe 31 is connected with a telescopic pipe body 32; the lower end of the telescopic pipe body 32 is provided with a middle floating pipe 33; the upper end of the lower positioning tube 34 extends to the middle of the inside of the bottom screwing ring body 51 in a penetrating way; the connection ring body 36 is arranged on the outer side of the periphery of the lower positioning tube 34, and the outer side of the periphery of the connection ring body 36 is fixed on the periphery of the inner part of the bottom rotary connection ring body 51; a plurality of vent holes 361 are uniformly formed in the periphery of the connecting ring body 36; the upper end of the lower positioning pipe 34 is positioned at the lower end of the middle floating pipe 33; the periphery of the external bracket 1 is provided with a separation driving mechanism 4; the separation driving mechanism 4 drives the middle floating pipe 33 to float up and down in the outer support 1 and the bottom screwing ring body 51, and drives the lower end of the middle floating pipe 33 to be in sealing contact with or separated from the upper end of the lower positioning pipe 34. The outer support 1 may be made of a transparent polymer material.
As shown in fig. 1 to 6, it is further preferable that the separation drive mechanism 4 includes a transverse connecting rod 46, a slider 45, a drive screw 44, an extension rod 43; a plurality of transverse connecting rods 46 are respectively and uniformly arranged on four sides of the middle floating pipe 33; the outer ends of the transverse connecting rods 46 are respectively provided with a floating block 45; a plurality of longitudinal sliding grooves 11 are uniformly formed in four sides of the middle of the inner part of the outer support 1 respectively; the floating blocks 45 at the outer ends of the transverse connecting rods 46 are respectively clamped in the longitudinal sliding grooves 11 in an up-and-down sliding manner; the floating blocks 45 are respectively provided with threaded holes, and the threaded holes are respectively screwed with a driving screw 44; the lower end of the driving screw 44 is rotatably clamped at the lower end of the longitudinal sliding chute 11, and the upper end of the driving screw 44 is penetrated through the penetrating rod 43 and extends to the upper end side of the outer bracket 1. Further, the separation driving mechanism 4 further includes a driving ring gear 41 and an inside meshing gear 42; the upper ends of the penetrating rods 43 are respectively provided with an inner side meshing gear 42, and the outer sides of the peripheries of the inner side meshing gears 42 are jointly meshed with a driving ring gear 41; the lower end of the driving ring gear 41 is rotatably clamped and installed around the upper end of the external bracket 1. Further, two sides of the lower end of the driving ring gear 41 are respectively provided with a rotary clamping tooth 411; the periphery of the upper end of the external bracket 1 is provided with an annular clamping groove 12; the driving ring gear 41 is rotatably clamped to the ring-shaped clamping grooves 12 on the periphery of the upper end of the outer bracket 1 through the rotating clamping teeth 411 on the two sides of the lower end. Further, the driving screws 44 are respectively sleeved with abutting elastic bodies 47; the upper and lower ends of the abutting elastic body 47 are elastically abutted between the inner upper side wall of the longitudinal sliding groove 11 and the upper end of the slider 45. Further, a rotation limiting block 441 is arranged at the lower end of the driving screw 44; the lower end of the longitudinal sliding groove 11 is provided with a rotary limiting groove 13; the rotating limiting block 441 is rotatably clamped on the rotating limiting groove 13. Further, a positioning tube 21 is arranged at the lower side of the top airbag 2; two sides of the positioning tube 21 are respectively provided with a positioning rod 211; the positioning pipe 21 is fixedly connected to both sides of the upper end of the external bracket 1 through positioning rods 211 at both sides. Further, a lower sealing ring body 331 is arranged around the lower end of the middle floating pipe 33; an upper sealing ring body 341 is arranged around the upper end of the lower positioning tube 34; the middle floating pipe 33 is connected with the upper sealing ring 341 around the upper end of the lower positioning pipe 34 in a sealing and abutting mode or in a separating mode through the lower sealing ring 331 around the lower end of the middle floating pipe. Furthermore, the periphery of the connecting ring body 36 is provided with a conical ring groove with a large upper part and a small lower part; the bottom of the conical ring groove is uniformly provided with a plurality of vent holes 361. Further, the closed ring body 35 is a tapered ring body structure with a small upper part and a large lower part; the telescoping tubes 32 are made of a bellows material.
The lower screwing mechanism 5 is additionally arranged, the bottom screwing ring body 51 is movably screwed on the external thread ring protrusion 53 on the periphery of the lower end of the external support 1 through the internal thread ring protrusion 52 on the periphery of the upper end, the upper end surface of the sealing ring body 54 is abutted against the lower end surface of the external thread ring protrusion 53 to realize sealing, and the lower positioning pipe 34 is fixed on the periphery of the inner part of the bottom screwing ring body 51 through the connecting ring body 36 to realize fixation, so that the lower positioning pipe 34 can be detached and replaced through the bottom screwing ring body 51, different volume specification requirements are met, and the use is more flexible.
The invention can realize the mode of integrated suction and separation discharge to discharge liquid, so that the liquid can be discharged into two sizes successively, and the operation requirement of the liquid-transferring device is met, firstly, the middle floating tube 33 is driven downwards, the lower end of the middle floating tube 33 is in sealing butt joint with the upper end of the lower positioning tube 34, so as to form a liquid-collecting channel of the middle floating tube 33, the telescopic tube body 32 and the lower positioning tube 34, then, the top airbag 2 is extruded, so that the liquid enters from the lower positioning tube 34 and is filled in the lower positioning tube 34, the middle floating tube 33, the telescopic tube body 32 and the upper connecting tube 31 in sequence, the redundant liquid can overflow from the upper end of the upper connecting tube 31 to the periphery of the upper end of the closed ring body 35, so as to finish the collection, then, the middle floating tube 33 is driven to move upwards, so that the lower end of the middle floating tube 33 is separated from the upper end of the lower positioning tube 34, so as to form an annular ventilation gap, so external atmospheric pressure is through the direct extrusion discharge downwards of the inside liquid of lower registration arm 34 at first through the air vent of connecting ring body 36, realize the first discharge liquid, then drive middle floating pipe 33 downwards again, make the lower extreme of middle floating pipe 33 and the sealed butt of upper end of lower registration arm 34, realize adopting the closure of liquid passageway, extrude top gasbag 2 at last, make and store in last connecting pipe 31, flexible body 32, the inside liquid of middle floating pipe 33 is downward through lower registration arm 34 discharge, so realized the liquid discharge of twice different volumes.
According to the invention, the ring gear is driven to rotate 41, the plurality of inner side meshing gears 42 are synchronously driven to rotate, and then the floating block 45 is driven to slide up and down in the longitudinal sliding chute of the outer support 1, so that the middle floating pipe 33 is driven to move up and down through the transverse connecting rod 46, the driving convenience is improved, the driving structure is extended upwards, and liquid contact is prevented.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A disassembly and replacement type liquid transfer mechanism is characterized by comprising a top air bag, an external bracket, a liquid storage assembly, a separation driving mechanism and a lower screwing mechanism; the outer bracket is in an annular cylinder structure; the lower screwing mechanism comprises an external thread ring protrusion, a bottom screwing ring body, an internal thread ring protrusion and a sealing ring body; the periphery of the lower end of the external support is provided with an external thread ring protrusion; an internal thread ring protrusion is arranged on the periphery of the upper end of the bottom screwing ring body, and a sealing ring body is arranged on the upper end face of the bottom screwing ring body on the inner side of the periphery of the internal thread ring protrusion; the convex threads of the internal thread ring are screwed on the outer sides of the periphery of the convex of the external thread ring; the upper end surface of the sealing ring body is abutted against the lower end surface of the external thread ring protrusion; the top air bag is arranged in the middle of the upper end of the external bracket; the liquid storage assembly is arranged between the external support and the inner part of the bottom screwing ring body and is positioned below the top airbag; the liquid storage assembly comprises an upper connecting pipe, a closed ring body, a telescopic pipe body, a middle floating pipe, a lower positioning pipe and a connecting ring body; the upper connecting pipe is arranged above the inside of the external bracket, and the upper end of the upper connecting pipe is communicated with the lower end of the top airbag; the periphery outer side of the upper connecting pipe is provided with a closed ring body, the periphery inner side of the upper end of the closed ring body is connected with the periphery outer side of the upper connecting pipe, and the periphery outer side of the lower end of the closed ring body is connected with the periphery inner side of the external support; the lower end of the upper connecting pipe is connected with a telescopic pipe body; the lower end of the telescopic pipe body is provided with a middle floating pipe; the upper end of the lower positioning pipe extends to the middle of the inside of the bottom screwing ring body in a penetrating manner; the connecting ring body is arranged on the outer side of the periphery of the lower positioning pipe, and the outer side of the periphery of the connecting ring body is fixed on the periphery of the inner part of the bottom rotary connecting ring body; a plurality of vent holes are uniformly formed in the periphery of the connecting ring body; the upper end of the lower positioning pipe is positioned at the lower end of the middle floating pipe; a separation driving mechanism is arranged around the external bracket; the separation driving mechanism drives the middle floating pipe to float up and down in the outer support and the bottom rotary connection ring body, and drives the lower end of the middle floating pipe to be in sealing butt joint with or separated from the upper end of the lower positioning pipe.
2. The change-of-detachment pipetting mechanism of claim 1 wherein the separation drive mechanism comprises a transverse connecting rod, a slider, a drive screw, an extension rod; a plurality of transverse connecting rods are uniformly arranged on four sides of the middle floating pipe respectively; the outer ends of the transverse connecting rods are respectively provided with a floating block; a plurality of longitudinal sliding grooves are uniformly formed in four sides of the middle of the inner part of the outer support respectively; the floating blocks at the outer ends of the transverse connecting rods are respectively connected in the longitudinal sliding grooves in a vertically sliding and clamping manner; the floating blocks are respectively provided with threaded holes, and the threaded holes are respectively screwed with a driving screw; the lower end of the driving screw is rotatably clamped at the lower end of the longitudinal sliding groove, and the upper end of the driving screw is connected in a penetrating mode through a penetrating rod and extends to the side portion of the upper end of the external support 1.
3. The change-and-detach pipetting mechanism of claim 2 wherein the detachment drive mechanism further comprises a drive ring gear and an inside engagement gear; the upper ends of the penetrating connecting rods are respectively provided with an inner side meshing gear, and the outer sides of the peripheries of a plurality of inner side meshing gears are jointly meshed and connected with a driving ring gear; the lower end of the driving ring gear is rotatably clamped and installed around the upper end of the external support.
4. A detachable and replaceable liquid-transfering mechanism according to claim 3, wherein, said driving ring gear is provided with a rotary engaging tooth on each side of its lower end; the periphery of the upper end of the external bracket is provided with an annular clamping groove; the driving ring teeth are rotationally clamped on the annular clamping grooves on the periphery of the upper end of the external support through the rotary clamping teeth on the two sides of the lower end.
5. The disassembly and replacement type pipetting mechanism of claim 2, wherein the drive screws are respectively sleeved with abutting elastic bodies; the upper end and the lower end of the abutting elastic body are respectively elastically abutted between the inner upper side wall of the longitudinal sliding groove and the upper end of the floating block.
6. The detachable and replaceable pipetting mechanism of claim 2, wherein the lower end of the drive screw is provided with a rotation limiting block; the lower end of the longitudinal sliding groove is provided with a rotary limiting groove; the rotary limiting block is rotatably clamped on the rotary limiting groove.
7. A knockdown and replacement pipetting mechanism as recited in claim 1 wherein the underside of the top air bladder is provided with a positioning tube; two sides of the positioning pipe are respectively provided with a positioning rod; the positioning pipes are fixedly connected to two sides of the upper end of the external support through positioning rods on two sides.
8. A detachable and replaceable liquid-transfering mechanism according to claim 1, wherein a lower sealing ring body is arranged around the lower end of the middle floating tube; an upper sealing ring body is arranged around the upper end of the lower positioning pipe; the middle floating pipe is connected with the upper sealing ring body on the periphery of the upper end of the lower positioning pipe in a sealing and abutting mode or in a separating mode through the lower sealing ring body on the periphery of the lower end of the middle floating pipe.
9. The pipette mechanism of claim 1, wherein the connecting ring has a tapered annular groove with a larger top and a smaller bottom around the connecting ring; and a plurality of vent holes are uniformly formed in the bottom of the conical ring groove.
10. A detachable and replaceable pipetting mechanism according to claim 1 wherein the closed ring is a tapered ring structure with a small top and a large bottom; the telescopic pipe body is made of a corrugated pipe material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210293763.4A CN114570447B (en) | 2022-03-24 | 2022-03-24 | Dismantle change formula pipetting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210293763.4A CN114570447B (en) | 2022-03-24 | 2022-03-24 | Dismantle change formula pipetting mechanism |
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| Publication Number | Publication Date |
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| CN114570447A true CN114570447A (en) | 2022-06-03 |
| CN114570447B CN114570447B (en) | 2023-06-20 |
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| CN202210293763.4A Active CN114570447B (en) | 2022-03-24 | 2022-03-24 | Dismantle change formula pipetting mechanism |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110547811A (en) * | 2019-09-23 | 2019-12-10 | 江苏科华医疗器械科技有限公司 | Detachable blood collection tube |
| CN110547809A (en) * | 2019-09-23 | 2019-12-10 | 江苏科华医疗器械科技有限公司 | Telescopic blood collection tube |
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- 2022-03-24 CN CN202210293763.4A patent/CN114570447B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110547811A (en) * | 2019-09-23 | 2019-12-10 | 江苏科华医疗器械科技有限公司 | Detachable blood collection tube |
| CN110547809A (en) * | 2019-09-23 | 2019-12-10 | 江苏科华医疗器械科技有限公司 | Telescopic blood collection tube |
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