CN215353518U - Pipette suction head convenient to replace - Google Patents

Abstract

The utility model discloses a pipette suction head convenient to replace, which comprises a main body, a joint and a fixing mechanism, wherein the joint is fixed at the top of the main body; a securing mechanism coupled to the body surface; the main body includes: a liquid storage pipe; the thread is arranged on the upper surface of the liquid storage pipe; a chuck connected to an exterior of the reservoir tube. This pipette suction head convenient to change passes through the main part, the setting of liquid storage pipe and screw thread, make to be detachable construction between liquid storage pipe and the main part, the accessible is rotatory when the liquid storage pipe takes place to damage and dismantles the liquid storage pipe and change, be different from the suction head of general integration, need whole the change when partly damages, be favorable to practicing thrift the cost, promote its feature of environmental protection, the fixed arm of cooperation fixed establishment inside can be fixed with the chuck block on liquid storage pipe surface with detaining the tooth, promote the steadiness of connecting, through the thru hole of seting up a plurality of slopes forms in the liquid storage pipe bottom, make and to inhale the material fast at this suction head during operation.

Description

Pipette suction head convenient to replace

Technical Field

The utility model relates to the technical field of package printing, in particular to a pipette suction head convenient to replace.

Background

A pipette, also known as a pipette gun, is a device for transferring liquid quantitatively. In conducting analytical testing studies, small or minute amounts of liquid are typically removed using a pipette. Pipettes can be divided into gas piston pipettes and external piston pipettes according to the principle, and pipette tips are one of the important components of pipettes.

Pipette suction head on market generally is the integral structure for when the liquid storage pipe of bottom takes place to damage when using, need change whole suction head and promote its use cost's problem, for this reason, we provide a pipette suction head convenient to change.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pipette tip convenient to replace, and aims to solve the problem that the pipette tip in the market, which is provided by the background art, is generally of an integrated structure, so that when a liquid storage pipe at the bottom is damaged in use, the whole tip needs to be replaced, and the use cost of the pipette tip needs to be increased.

In order to achieve the purpose, the utility model provides the following technical scheme: a pipette tip for easy replacement, comprising:

a main body;

a joint fixed to the top of the body;

a securing mechanism coupled to the body surface;

the main body includes:

a liquid storage pipe;

the thread is arranged on the upper surface of the liquid storage pipe;

a chuck connected to an exterior of the reservoir tube.

Preferably, the joint comprises:

a housing;

the anti-skid lines are arranged on the surface of the shell;

the sealing ring, it connect in the shell inner wall, sealing ring internal connection has the sand grip.

Preferably, the sealing ring is fixedly connected with the shell, and the sealing ring and the shell are distributed in a concentric circle.

Preferably, the fixing mechanism includes:

a fixed arm;

and the rotary spring is inserted into the fixed arm in a penetrating manner, and the bottom of the fixed arm is connected with a buckle tooth.

Preferably, the fixed arm forms an elastic structure with the main body through the rotary spring, and the fixed arm is uniformly distributed with equal distance relative to the outer surface of the main body.

Preferably, the liquid storage pipe is in threaded connection with the main body through threads, and the vertical center line of the liquid storage pipe coincides with the vertical center line of the main body.

Preferably, the fixed arm forms fixed knot structure through between button tooth, chuck and the liquid storage tube, and the chuck is concave shape structure.

Preferably, the body further comprises:

the through hole is formed in the lower surface of the liquid storage pipe and is of an inclined structure;

a filter net mounted inside the through hole;

and the scales are arranged on the outer surface of the liquid storage pipe.

Preferably, the filter screen is fixedly connected with the through holes, and the size of the outer opening of the filter screen is consistent with that of the inner opening of the through holes.

The utility model provides a pipette tip convenient to replace, which has the following beneficial effects: this pipette suction head convenient to change through sealing washer and the sand grip of the inner wall installation at the joint for promote its leakproofness between the two when being connected with the pipettor, avoid taking place the condition of weeping, with the split type setting of main part and stock solution pipe, make the in-process that facilitates the use advance to change the processing to the stock solution pipe of damage, reduce its use cost.

1. According to the anti-slip device, the anti-slip lines are arranged on the outer wall of the shell, so that the main body is prevented from accidentally slipping off when the anti-slip device is installed, the sealing performance of the device is improved by matching with the sealing ring in the shell, and meanwhile, the anti-slip device can be tightly attached to the outer wall of a liquid transfer device when the anti-slip device is installed on the liquid transfer device through the arrangement of the convex strips, so that the liquid is prevented from leaking.

2. According to the utility model, through the arrangement of the main body, the liquid storage pipe and the threads, the liquid storage pipe and the main body are in a detachable structure, the liquid storage pipe can be detached and replaced through rotation when the liquid storage pipe is damaged, the liquid storage pipe is different from a common integrated suction head, the liquid storage pipe is integrally replaced when one part of the liquid storage pipe is damaged, the cost is saved, the environmental protection performance is improved, the fixed arm and the buckle teeth in the fixing mechanism can be clamped and fixed with the chuck on the surface of the liquid storage pipe, and the connection stability is improved.

3. According to the suction head, the plurality of inclined through holes are formed in the bottom of the liquid storage pipe, so that when the suction head works, materials can be quickly sucked, the quantitative suction of operators is prompted by matching with scales arranged on the surface of the suction head, a filter screen is arranged in each through hole, impurities in the suction head can be filtered while liquid is sucked, and the accuracy of the suction head is improved.

Drawings

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

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a schematic view of a joint structure according to the present invention;

FIG. 4 is a schematic view of a liquid storage tube according to the present invention.

In the figure: 1. a main body; 101. a liquid storage pipe; 102. a thread; 103. a chuck; 104. through holes; 105. a filter screen; 106. calibration; 2. a joint; 201. a housing; 202. anti-skid lines; 203. a seal ring; 204. a convex strip; 3. a fixing mechanism; 301. a fixed arm; 302. a return spring; 303. and (6) buckling teeth.

Detailed Description

As shown in fig. 1 and 3, a pipette tip for easy replacement includes: a main body 1; a connector 2 fixed on the top of the main body 1 and a shell 201; the anti-skid veins 202 are arranged on the surface of the shell 201; sealing washer 203, it is connected in the shell 201 inner wall, sealing washer 203 internal connection has sand grip 204, be fixed connection between sealing washer 203 and the shell 201, and be the concentric circles between sealing washer 203 and the shell 201 and distribute, sealing washer 203 that sets up in the inside of shell 201 makes its leakproofness that promotes the device, simultaneously through the setting of sand grip 204, make can closely laminate the outer wall at the pipettor when installing with the pipettor, avoid the condition that liquid takes place to leak, simultaneously through seting up anti-skidding line 202 at the outer wall of shell 201, make the condition of avoiding the unexpected landing of main part 1 when the installation.

As shown in fig. 1-2, a pipette tip for easy replacement, a fixing mechanism 3, which is attached to the surface of a main body 1; the main body 1 includes: a liquid storage pipe 101; a screw 102 opened on the upper surface of the reservoir 101; a chuck 103 connected to the outside of the liquid storage tube 101, and fixing a arm 301; the fixing arm 301 is in equal-distance and uniform distribution with respect to the outer surface of the main body 1, the liquid storage tube 101 is in threaded connection with the main body 1 through the threads 102, the vertical center line of the liquid storage tube 101 coincides with the vertical center line of the main body 1, the fixing arm 301 is in a fixed structure with the liquid storage tube 101 through the buckling teeth 303, the chuck 103 is in a concave structure, the main body 1, the liquid storage tube 101 and the main body 1 are in a detachable structure through the arrangement of the main body 1, the liquid storage tube 101 and the threads 102, the liquid storage tube 101 can be detached and replaced through rotation when the liquid storage tube 101 is damaged, the fixing arm is different from a common integrated suction head, integral replacement is needed when one part is damaged, and cost saving is facilitated, promote its feature of environmental protection, the inside fixed arm 301 of cooperation fixed establishment 3 and the setting of buckle tooth 303, when using, through the one end of pressing fixed arm 301, make fixed arm 301 to rotate around revolving spring 302 and open, loosen fixed arm 301 under the elastic action of revolving spring 302 self after liquid storage pipe 101 is connected with main part 1, pulling fixed arm 301 resets, make buckle tooth 303 can be fixed with the chuck 103 block of the concave structure on liquid storage pipe 101 surface, promote the steadiness of connecting.

As shown in fig. 1 and 4, a pipette tip convenient for replacement, a through hole 104 is arranged on the lower surface of a liquid storage tube 101, and the through hole 104 is of an inclined structure; a filter screen 105 mounted inside the through hole 104; scale 106, it sets up to be fixed connection between the surface filter screen 105 of liquid storage pipe 101 and thru hole 104, and the outer mouthful size of filter screen 105 is unanimous with the interior mouthful size of thru hole 104, the scale 106 that sets up on the surface of liquid storage pipe 101 is used for the volume that the suggestion operation personnel absorb the material, promote its practicality, thru hole 104 through the slope form that evenly sets up at the lower surface of liquid storage pipe 101 simultaneously, make the operation personnel can inhale the material fast, simultaneously at the in-process of blowing, can accelerate the release of material, make it can accelerate its hybrid process, still be provided with filter screen 105 in the inside of thru hole 104 simultaneously, can also filter its inside impurity when absorbing liquid, promote its precision, avoid its liquid storage pipe 101 inside to receive the condition that the interference led to the fact the clearance difficulty.

In conclusion, when the pipette tip convenient to replace is used, firstly, the sealing ring 203 arranged in the shell 201 improves the sealing performance of the device, meanwhile, the raised line 204 is arranged to enable the pipette tip to be tightly attached to the outer wall of the pipette when being installed with the pipette, so as to avoid the situation of liquid leakage, meanwhile, the anti-slip line 202 is arranged on the outer wall of the shell 201, so as to avoid the situation that the main body 1 accidentally slips when being installed, then, the main body 1, the liquid storage tube 101 and the thread 102 are arranged to enable the liquid storage tube 101 and the main body 1 to be of a detachable structure, when the liquid storage tube 101 is damaged, the liquid storage tube 101 can be detached and replaced through rotation, which is different from a common integrated pipette tip, the pipette tip needs to be integrally replaced when a part of the pipette tip is damaged, is beneficial to saving cost and improving the environmental protection performance, and is matched with the arrangement of the fixing arm 301 and the buckling tooth 303 in the fixing mechanism 3, when the device is used, one end of the fixing arm 301 is pressed, the fixing arm 301 can rotate around the rotary spring 302 to be opened, after the liquid storage pipe 101 is connected with the main body 1, the fixing arm 301 is loosened under the elastic action of the rotary spring 302, the fixing arm 301 is pulled to reset, the buckle tooth 303 can be clamped and fixed with the chuck 103 with a concave structure on the surface of the liquid storage pipe 101, the connection stability is improved, the scale 106 arranged on the surface of the liquid storage pipe 101 is used for prompting an operator to suck the amount of materials, the practicability of the device is improved, meanwhile, the operator can quickly suck the materials through the inclined through holes 104 uniformly formed in the lower surface of the liquid storage pipe 101, meanwhile, the pushing-out of the materials can be accelerated in the discharging process, the mixing process of the materials can be accelerated, meanwhile, the filter screen 105 is further arranged in the through holes 104, impurities in the liquid can be filtered while the liquid is sucked, the accuracy of the cleaning device is improved, and the situation that the inside of the liquid storage pipe 101 is interfered to cause difficulty in cleaning is avoided.

Claims (9)

1. A pipette tip for easy replacement, comprising:

a main body (1);

the method is characterized in that:

a joint (2) fixed on the top of the main body (1);

a fixing mechanism (3) connected to the surface of the main body (1);

the main body (1) comprises:

a liquid storage pipe (101);

a screw thread (102) which is opened on the upper surface of the liquid storage pipe (101);

a chuck (103) connected to the outside of the liquid storage tube (101).

2. Pipette tip convenient to replace according to claim 1, characterized in that said joint (2) comprises:

a housing (201);

the anti-skid veins (202) are arranged on the surface of the shell (201);

and the sealing ring (203) is connected to the inner wall of the shell (201), and a convex strip (204) is connected inside the sealing ring (203).

3. Pipette tip easy to replace according to claim 2, characterized in that the sealing ring (203) is fixedly connected to the housing (201) and the sealing ring (203) is concentrically arranged to the housing (201).

4. Pipette tip convenient to replace according to claim 1, characterized in that the fixing mechanism (3) comprises:

a fixed arm (301);

and the rotary spring (302) is inserted into the fixed arm (301), and the bottom of the fixed arm (301) is connected with a buckle tooth (303).

5. A pipette tip easy to replace according to claim 4, characterized in that the fixed arm (301) is elastically connected to the main body (1) via a rotary spring (302), and the fixed arms (301) are equally spaced from the outer surface of the main body (1).

6. The pipette tip of claim 1, wherein the reservoir (101) is screwed to the main body (1) by means of a screw (102), and the vertical center line of the reservoir (101) coincides with the vertical center line of the main body (1).

7. The pipette tip of claim 4 wherein the fixed arm (301) is fixed by the retaining tooth (303), the chuck (103) and the reservoir (101), and the chuck (103) is of a concave shape.

8. Pipette tip convenient to replace according to claim 1, characterized in that the main body (1) further comprises:

a through hole (104) which is arranged on the lower surface of the liquid storage pipe (101), wherein the through hole (104) is of an inclined structure;

a filter screen (105) mounted inside the through hole (104);

and a scale (106) provided on an outer surface of the reservoir tube (101).

9. The pipette tip of claim 8 wherein the filter screen (105) is fixedly connected to the through hole (104) and the filter screen (105) has an outer opening that is sized to correspond to the inner opening of the through hole (104).

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