CN208356807U - A kind of multichannel liquid-transfering gun - Google Patents

Abstract

The utility model belongs to experiment equipment technical field, more particularly to a kind of multichannel liquid-transfering gun, including gun body, the gun body is equipped with range adjusting rod, connector, multi-way joint and several suction nozzles, it is arranged on the lateral surface of each suction nozzle lower end fluted, the clad of soft material is covered at the notch of the groove, the clad and the groove form a closed structure, a radial elastic component built in the closed structure, there are radical elasticities for the radial elastic component, and the wrapping layer is abutted by the radical elasticity, the lateral surface of the wrapping layer protrudes the lateral surface of suction nozzle lower end in radial elastic component under natural conditions.The utility model liquid-transfering gun solves the problems, such as that pipette tips are easy to fall off liquid-transfering gun in use, meanwhile, by the way that push-off pin is arranged outside gun body, solve the problems, such as that pipette tips are not easy to unload.

Description

A kind of multichannel liquid-transfering gun

Technical field

The utility model relates to experiment equipment field, in particular to a kind of multichannel liquid-transfering gun.

Background technique

In medical treatment, drug, gene and protein research, biological study, drug development laboratories and other biotechnologys In application field, it is often necessary to utilize shifting in various laboratory procedures using pipettor come handle laboratory Then liquid is distributed into one or more dispensed volumes in the liquid sucking pipette of certain volume by liquid device.Liquid relief at present Then liquid is successively distributed into one or more distribution by manual operation in the liquid sucking pipette of certain volume by device It during volume, when experimentai batches are more, generally require to take considerable time sampling, causes round of visits longer, examine effect Rate is low.Also selling currently on the market has miscellaneous multichannel pipette tips, and when in use due to liquid-transfering gun, user can repeat The step of filling pipette tips, imbibition and unloading pipette tips, existing liquid-transfering gun have the following deficiencies: that (1) built on the sand, is made due to pipette tips installation It often falls off during, influences experiment process.(2) when unloading pipette tips, pipette tips are not easily to fall off.

Utility model content

In view of the foregoing, it is necessary to which the firm installation of pipette tips can be made and be easy to unload the multichannel liquid relief of pipette tips by providing one kind Rifle.

In order to achieve the above objectives, technical solution used by the utility model is as follows:

A kind of multichannel liquid-transfering gun, including gun body, the gun body are equipped with range adjusting rod, connector, multi-way joint With several suction nozzles, it is arranged on the lateral surface of each suction nozzle lower end fluted, is covered at the notch of the groove soft The clad of material, the clad and the groove form a closed structure, a radial elastic built in the closed structure Component, there are radical elasticities for the radial elastic component, and abut the clad by the radical elasticity, the clad Lateral surface protrudes down the lateral surface of suction nozzle lower end in radial elastic component in the raw.

Preferably, the radial elastic component includes spring and steel ball, elastic direction and the suction nozzle of the spring It is axially mutually perpendicular to, one end of the spring is connected in groove, and the other end connects the steel ball, and is abutted by the steel ball The wrapping layer, the steel ball are movably installed on the groove.

Preferably, the difference of the diameter of the steel ball and the groove caliber size is less than the radius of the steel ball.

Preferably, the radial elastic component includes elastic piece and steel ball, and one end of the elastic piece is fixed on described recessed In slot, the elastic surface of the elastic piece connects the steel ball, and the elastic direction of the elastic piece is with the suction nozzle axially at one Angle, the steel ball abut the clad by elastic force in this direction.

Preferably, the groove on each suction nozzle lower end outside face is arranged around the circumferential direction of the suction nozzle, and is formed One annular groove；The radial elastic component is elastic ring, and the elastic ring is set in the annular groove, the elasticity The elastic direction of circle and the axial direction of the suction nozzle are mutually perpendicular to, and one end of the elastic ring is located in the groove, and connects institute Groove is stated, the other end of the elastic ring stretches out outside groove in its relaxed state, and is in contact with the clad.

Preferably, the prominent suction nozzle lateral surface of the clad with a thickness of 0.8-1mm.

Preferably, the suction nozzle it is parallel it is arranged side by side in a row, the distance between each adjacent two suction nozzle is equal.

Preferably, it is additionally provided with push-off pin in the gun body, is slidably connected between the push-off pin and the gun body, it is described The direction that fluid flows in the glide direction and gun body of push-off pin is parallel to each other, and the lower end of the push-off pin is connected with launched portion Part, the release part include that several release ring, each described release ring set is set on the suction nozzle, and each The release ring is located on corresponding clad, is connected with each other between release ring described in each adjacent two.

Preferably, the gun body is externally provided with a strip groove, and the strip groove is set along the direction that fluid in gun body flows It sets；The push-off pin is equipped with boss, and the boss is embedded in the strip groove, and the push-off pin passes through boss and institute thereon Gun body is stated to be slidably connected；Return spring, elastic direction and the push-off pin of the return spring are equipped in the strip groove Activity direction is consistent, and one end of the return spring is connected in the strip groove, and the other end is connected to the convex of the push-off pin On platform, in the case where the return spring stress balance, each release ring in the release part is located at corresponding The top of radial elastic component.

The utility model has the following beneficial effects:

1. radial elastic component is arranged by the outer lower end in suction nozzle in the utility model liquid-transfering gun, solving liquid-transfering gun makes With the problem of pipette tips are easy to fall off in the process, specifically: it is fluted and be coated in groove port in the outer lower end setting of suction nozzle Clad, the two forms closed structure, and one end of radial elastic component sets connecting groove, and the other end is at which in nature Lower abutting clad, and make the bulge-structure of clad layer-forming one prominent suction nozzle lateral surface, the effect of arrangement above is, When filling pipette tips, deformation occurs and generates radial elastic force and plays to be connected on the inner wall of pipette tips for radial spring component The effect of firm pipette tips, to solve the problems, such as that pipette tips are easy to fall off liquid-transfering gun in use.

2. needing constantly to fill pipette tips during experiment, unloading pipette tips, when unloading pipette tips, pipette tips are not easily to fall off, for solution The certainly problem, the utility model solve the problems, such as that pipette tips are not easy to unload by the way that push-off pin is arranged outside gun body, specifically: It is arranged with release ring above the radial elastic component of each suction nozzle, is interconnected to release part between every adjacent release ring, Release part is connected to the lower end of push-off pin, and push-off pin is formed with gun body by the boss in insertion gun body groove thereon and slided Connection is connected between boss and groove by a return spring, thus when unloading pipette tips, push-off pin is pushed down on to drive So that release part is pushed down on pipette tips, achievees the effect that rapid removal pipette tips, and while pushing push-off pin, return spring hair Raw deformation, automatic returning is in situ under the action of the return spring for push-off pin after unclamping hand.Therefore, the utility model passes through push-off pin Setting solve the problems, such as that pipette tips are not easy to unload.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of one better embodiment of the utility model liquid-transfering gun.

Fig. 2 is the structural schematic diagram under another vision of one better embodiment of the utility model liquid-transfering gun.

Fig. 3 is the partial schematic diagram of one better embodiment of the utility model liquid-transfering gun.

Fig. 4 is the partial cutaway view in the direction A-A in the first embodiment of the utility model liquid-transfering gun Fig. 3.

Fig. 5 is the partial cutaway view in the direction A-A in second of embodiment Fig. 3 of the utility model liquid-transfering gun.

Fig. 6 is the sectional view in the direction A-A in the 3 of the utility model liquid-transfering gun the third embodiment.

Fig. 7 is the top view of the radial elastic component of the utility model liquid-transfering gun the third embodiment.

Main element symbol description:

In attached drawing: 1- gun body, 2- range adjusting rod, 3- connector, 4- multi-way joint, 5- suction nozzle, 51- radial elastic group Part, 511- steel ball, 512- spring, 513- elastic piece, 514- elastic ring, 52- clad, 6- push-off pin, 61- release part, 612- boss, 7- return spring.

The following detailed description will be further explained with reference to the above drawings the utility model.

Specific embodiment

Embodiment 1

Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are please referred to, in a kind of better embodiment of the utility model, a kind of multichannel shifting Liquid rifle, including gun body 1, the gun body 1 are equipped with range adjusting rod 2, connector 3, multi-way joint 4 and several suction nozzles 5, into One step, it is additionally provided with range display screen in the gun body 1, with convenient reading range.Further, the suction nozzle 5 it is parallel and In a row, the distance between each adjacent two suction nozzle 5 is equal, to realize that the suction nozzle 5 of the liquid-transfering gun is directed at rifle to be installed for row's setting Head realizes Fast Installation.

Further, it is arranged fluted on the lateral surface of each 5 lower end of the suction nozzle, is provided at the notch of the groove The clad 52 of soft material, is arranged on the lateral surface of each 5 lower end of suction nozzle fluted, covers at the notch of the groove There is a clad 52 of soft material, the clad 52 and the groove form a closed structure, one built in the closed structure A radial elastic component 51, there are radical elasticities for the radial elastic component 51, and abut the cladding by the radical elasticity Layer, the lateral surface of the clad protrude down the lateral surface of 5 lower end of suction nozzle in radial elastic component 51 in the raw.It is described Clad 52 uses soft material one and provides being squeezed that deformation occurs for the radial elastic component 51 condition, and two reinforce Leakproofness between the suction nozzle 5 and pipette tips avoids causing liquid absorption amount inaccurate because of gas leakage.In the present embodiment, the diameter It include spring 512 and steel ball 511 to elastic parts 51, the elastic direction of the spring 512 and the axial of the suction nozzle 5 are mutually hung down Directly, one end of the spring 512 is connected in groove, and the other end connects the steel ball 511, and is abutted by the steel ball 511 The clad 52, the steel ball are movably installed on the groove.Preferably, outside the prominent suction nozzle 5 of the clad 52 Side with a thickness of 0.8-1mm.Further, the diameter of the steel ball 511 and the difference of the groove caliber size are small In the radius of the steel ball 511, to ensure the steel ball 511 by the pressure along 512 direction of spring, to make the bullet Spring 512 generates radical elasticity by compression, plays the role of firm pipette tips.Above by radial elastic component 51 in its elastic direction It is upper to abut the clad 52, and the radial elastic component 51 in the raw in the case where make the clad 52 The lateral surface of 5 lower end of suction nozzle is easily squeezed the radial elastic component 51, the spring when filling pipette tips 512 deformation occurs to generate a radial direction elastic force, so that pipette tips is consolidated installation, to solve liquid-transfering gun in use process The problem of middle pipette tips are easy to fall off, meanwhile, so that spring 512 is in compressive state, in contrast, institute better than it in the raw Stating spring 512 in the raw can avoid in the case where liquid-transfering gun does not use, and the spring 512 generates a radial bullet Power causes the clad 52 to fall off, and increases frequency of maintenance.

Further, it is additionally provided with push-off pin 6 in the gun body 1, connects between the push-off pin 6 and the gun body 1 for sliding It connects, the direction that the glide direction of the push-off pin 6 is flowed with fluid in gun body 1 is parallel to each other, the lower end connection of the push-off pin 6 There is release part 61, the release part 61 includes that several release ring, each described release ring set is set to a suction On mouth 5, and each described release ring is located on corresponding clad 52, between release ring described in each adjacent two It is connected with each other.Further, the gun body 1 is externally provided with a strip groove, the side that the strip groove is flowed along fluid in gun body 1 To setting；The push-off pin 6 is equipped with boss 612, and the boss 612 is embedded in the strip groove, and the push-off pin 6 passes through it On boss 612 be slidably connected with the gun body 1；Return spring 7, the elasticity of the return spring 7 are equipped in the strip groove Direction is consistent with the activity direction of the push-off pin 6, and one end of the return spring 7 is connected in the strip groove, the other end It is connected on the boss 612 of the push-off pin 6, in the case where 7 stress balance of return spring, the release part 61 On each release ring be located at the top of corresponding radial elastic component 51.By above-mentioned setting, pipette tips are being unloaded When, the push-off pin 6 is pushed along the direction of fluid flowing, the release part 61 of 6 lower end of push-off pin is caused to release pipette tips, Realize the rapid removal of pipette tips, while pushing push-off pin 6, deformation occurs for the return spring 7, after unclamping hand, institute It is in situ to state automatic returning under the action of return spring 7 of push-off pin 6.

Embodiment 2

Fig. 1, Fig. 2, Fig. 3 and Fig. 5 are please referred to, in the present embodiment, is provided on the lateral surface of each 5 lower end of suction nozzle Groove is provided with the clad 52 of soft material at the notch of the groove, is arranged on the lateral surface of each 5 lower end of suction nozzle It is fluted, the clad 52 of soft material is covered at the notch of the groove, the clad 52 forms one with the groove A closed structure, a radial elastic component 51 built in the closed structure, there are radical elasticities for the radial elastic component 51, and Abut the clad by the radical elasticity, the lateral surface of the clad radial elastic component 51 in the raw under Protrude the lateral surface of 5 lower end of suction nozzle.The clad 52 uses soft material one to be squeezed for the radial elastic component 51 Deformation occurs provides condition, and two strengthen the leakproofness between the suction nozzle 5 and pipette tips, avoids leading to liquid absorption amount because of gas leakage It is inaccurate.In the present embodiment, the radial elastic component 51 include elastic piece 513 and steel ball 511, the one of the elastic piece 513 End is fixed in the groove, and the elastic surface of the elastic piece 513 connects the steel ball 511, the elasticity side of the elastic piece 513 It has angle to the axial direction with the suction nozzle 5, the steel ball 511 abuts the clad by elastic force in this direction.It is preferred that , prominent 5 lateral surface of suction nozzle of the clad 52 with a thickness of 0.8-1mm.By above-mentioned design, fill pipette tips when It waits, is easily squeezed the radial elastic component 51, deformation occurs for the elastic piece 513 to generate an elastic force, the bullet Power direction is axially formed an angle with the suction nozzle 5, so that pipette tips is consolidated installation, was using to solve liquid-transfering gun The problem of pipette tips are easy to fall off in journey, meanwhile, so that elastic piece 513 is in compressive state better than it in the raw, compares it Under, the spring 512 is can avoid in the raw in the case where liquid-transfering gun does not use, and the elastic piece 513 generates one Radical elasticity causes the clad 52 to fall off, and increases frequency of maintenance.

Remaining is same as Example 1.

Embodiment 3

Fig. 1, Fig. 2, Fig. 3, Fig. 6 and Fig. 7 are please referred to, in the present embodiment, is set on the lateral surface of each 5 lower end of suction nozzle It is equipped with groove, is provided with the clad 52 of soft material at the notch of the groove, on the lateral surface of each 5 lower end of suction nozzle It is arranged fluted, is covered with the clad 52 of soft material at the notch of the groove, the clad 52 and the groove type At a closed structure, there is radial bullet in a radial elastic component 51 built in the closed structure, the radial elastic component 51 Power, and the clad is abutted by the radical elasticity, the lateral surface of the clad is in nature in radial elastic component 51 The lateral surface of 5 lower end of suction nozzle is protruded under state.The clad 52 uses soft material one for the radial elastic component 51 It is squeezed that deformation occurs and provides condition, two strengthen the leakproofness between the suction nozzle 5 and pipette tips, avoid causing because of gas leakage Liquid absorption amount is inaccurate.In the present embodiment, circumferential direction of the groove on each 5 lower end outside face of the suction nozzle around the suction nozzle 5 Setting, and form an annular groove；The radial elastic component 51 is elastic ring 514, and the elastic ring 514 is set to described In annular groove, the elastic direction of the elastic ring 514 and the axial direction of the suction nozzle 5 are mutually perpendicular to, the elastic ring 514 One end is located in the groove, and connects the groove, and the other end of the elastic ring 514 stretches out groove in its relaxed state Outside, and with the clad 52 it is in contact.Preferably, prominent 5 lateral surface of suction nozzle of the clad 52 with a thickness of 0.8- 1mm.By above-mentioned design, when filling pipette tips, easily it is squeezed the elastic ring 514, the elastic ring 514 is sent out Raw deformation enables pipette tips to consolidate installation, to solve liquid-transfering gun rifle in use to the elastic force of one radial direction of generation The problem of head is easy to fall off, meanwhile, so that elastic ring 514 is in compressive state better than it in the raw, it is in contrast, described Elastic ring 514 is can avoid in the raw in the case where liquid-transfering gun does not use, and the elastic ring 514 generates a radial bullet Power causes the clad 52 to fall off, and increases frequency of maintenance.

Remaining is same as Example 1.

Anti- pipette tips fall off principle:

By the way that radial elastic component 51 is arranged below the suction nozzle 5, the radial elastic component 51 is in its elastic direction It is upper to abut the clad 52, and the radial elastic component 51 in the raw in the case where make 52 institute of clad The lateral surface for stating 5 lower end of suction nozzle, when filling pipette tips, the radial elastic component 51 is produced due to the extruding by pipette tips Raw radial elastic force, enables pipette tips to consolidate installation.

Rapid removal pipette tips principle:

It is flowed when unloading pipette tips along fluid between the push-off pin 6 and the gun body 1 for slidable connection Direction push the push-off pin 6, relatively move the push-off pin 6 between the two with the gun body 1, cause push-off pin The release part 61 of 6 lower ends releases pipette tips, realizes the rapid removal of pipette tips, described while pushing push-off pin 6 Deformation occurs for return spring 7, and after unclamping hand, the push-off pin 6 automatic returning under the action of return spring 7 is in situ.

Above description is the detailed description for the preferable possible embodiments of the utility model, but embodiment is not limited to The patent claim of the utility model, the same changes or modifications completed under technical spirit suggested by all the utility model Change, should belong to the covered the scope of the patents of the utility model.

Claims (9)

1. a kind of multichannel liquid-transfering gun, including gun body, the gun body be equipped with range adjusting rod, connector, multi-way joint and Several suction nozzles, it is characterised in that: be arranged fluted on the lateral surface of each suction nozzle lower end, covered at the notch of the groove It is stamped the clad of soft material, the clad and the groove form a closed structure, one built in the closed structure Radial elastic component, there are radical elasticities for the radial elastic component, and abut the clad by the radical elasticity, described The lateral surface of clad protrudes down the lateral surface of suction nozzle lower end in radial elastic component in the raw.

2. a kind of multichannel liquid-transfering gun according to claim 1, it is characterised in that: the radial elastic component includes spring And steel ball, the elastic direction of the spring and the axial direction of the suction nozzle are mutually perpendicular to, one end of the spring is connected in groove, The other end connects the steel ball, and abuts the clad by the steel ball, and the steel ball is movably installed on the groove.

3. a kind of multichannel liquid-transfering gun according to claim 2, it is characterised in that: the diameter of the steel ball with it is described The difference of groove caliber size is less than the radius of the steel ball.

4. a kind of multichannel liquid-transfering gun according to claim 1, it is characterised in that: the radial elastic component includes elasticity Piece and steel ball, one end of the elastic piece are fixed in the groove, and the elastic surface of the elastic piece connects the steel ball, described The elastic direction of elastic piece and the axial direction of the suction nozzle have angle, and the steel ball abuts the packet by elastic force in this direction Coating.

5. a kind of multichannel liquid-transfering gun according to claim 1, it is characterised in that: on each suction nozzle lower end outside face Groove around the suction nozzle circumferential direction setting, and formed an annular groove；The radial elastic component is elastic ring, institute It states elastic ring to be set in the annular groove, the elastic direction of the elastic ring and the axial direction of the suction nozzle are mutually perpendicular to, institute The one end for stating elastic ring is located in the groove, and connects the groove, and the other end of the elastic ring is in its relaxed state It stretches out outside groove, and is in contact with the clad.

6. a kind of multichannel liquid-transfering gun according to claim 1-5, it is characterised in that: the prominent institute of the clad State suction nozzle lateral surface with a thickness of 0.8-1mm.

7. a kind of multichannel liquid-transfering gun according to claim 1, it is characterised in that: the suction nozzle is parallel to be arranged side by side into A line, the distance between each adjacent two suction nozzle are equal.

8. a kind of multichannel liquid-transfering gun according to claim 1, it is characterised in that: it is additionally provided with push-off pin in the gun body, To be slidably connected between the push-off pin and the gun body, the direction of fluid flowing in the glide direction and gun body of the push-off pin It is parallel to each other, the lower end of the push-off pin is connected with release part, and the release part includes that several release ring, each institute It states and releases ring set on a suction nozzle, and each described release ring is located on corresponding clad, every phase It is connected with each other between adjacent two release rings.

9. a kind of multichannel liquid-transfering gun according to claim 8, it is characterised in that: the gun body is externally provided with a bar shaped Slot, the strip groove are arranged along the direction that fluid in gun body flows；The push-off pin is equipped with boss, and the boss is embedded in institute It states in strip groove, the push-off pin is slidably connected by boss thereon with the gun body；Return bullet is equipped in the strip groove The elastic direction of spring, the return spring is consistent with the activity direction of the push-off pin, and one end of the return spring is connected to In the strip groove, the other end is connected on the boss of the push-off pin, in the case where the return spring stress balance, institute State the top that each release ring in release part is located at corresponding radial elastic component.