CN210303727U - Solution quantitative suction means of easily controlling - Google Patents

Abstract

The utility model discloses an easy solution ration suction means of control, it includes injection tube and pipette, the front end of injection tube is connected with the return bend through hose one, the return bend passes through hose two to be connected with the pipette, the injection tube outside is equipped with test tube clamp one, the bottom of test tube clamp one is connected with bracing piece one, it is fixed with locking screw one that the bottom of bracing piece is inserted in sleeve pipe one, sleeve pipe one fixed connection is on the base one, be equipped with test tube clamp two on the pipette, the bottom surface of test tube clamp two is connected with bracing piece two, it is fixed with locking screw two that the bottom of bracing piece is inserted in sleeve pipe two, sleeve pipe two fixed connection is on the base two. The solution suction device can suck the solution quantitatively, is convenient to use, is easy to operate, can be used repeatedly, reduces white pollution and obtains good using effect.

Description

Solution quantitative suction means of easily controlling

Technical Field

The utility model relates to a solution suction means especially relates to an easily controlled solution ration suction means, belongs to experimental facilities technical field.

Background

When an experiment is carried out, a pipette is often used for sucking the solution, a pipette gun is less used, and the pipette gun head is a disposable article, so that a large amount of plastic pollution is generated when the amount of an experiment sample is large, and the cost is expensive. When the supernatant of the sample is sucked, the suction force generated by the aurilave is insufficient, so that the sucking quantity cannot be finished at one time, and the sucked liquid cannot be put back and needs to be sucked again, thereby causing the waste of the solution. Sometimes hold between the fingers the pipette unstability or inhale the liquid that comes and do not in time press the pipette mouth, then can cause liquid gliding and retrace in the bottle again, produce and vibrate, cause solution muddy, can not use, need to stew at least 6 hours again and just can continue to absorb solution, carry out the experiment, very waste time.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the solution quantitative suction device is easy to control, can suck quantitatively, is convenient to use, is easy to operate, can be used repeatedly, reduces white pollution, and effectively solves the existing problems.

The technical scheme of the utility model is that: the utility model provides an easily controlled solution ration suction means, it includes injection tube and pipette, the front end of injection tube is connected with the return bend through hose one, the return bend passes through hose two and is connected with the pipette, the injection tube outside is equipped with test tube clamp one, the bottom connection of test tube clamp one has bracing piece one, bracing piece one bottom is inserted in sleeve pipe one and is fixed with locking screw one, sleeve pipe one fixed connection is on the base one, be equipped with test tube clamp two on the pipette, the bottom surface of test tube clamp two is connected with bracing piece two, two bottoms of bracing piece are inserted in sleeve pipe two and are fixed with locking screw two, sleeve pipe two fixed connection is on the base two.

The elbow is of a 90-degree right-angle elbow structure, the top end face of the elbow is connected with a nozzle, and a pipe plug is arranged on the nozzle.

The outer wall of injection tube and pipette all is equipped with the scale.

The volume of the syringe is greater than the volume of the pipette.

The utility model has the advantages that: fix pipette and injection tube on the mesa through the shelf, the pipette is stable, does not rock, has avoided the disturbance to liquid in the volumetric flask, convenient operation. The height of the pipette can be adjusted according to the required liquid level, so that the phenomenon that too high liquid amount is not enough in the pipette is avoided; the pipette is placed too low and sucks in turbid liquid, which affects the experimental results. The utility model discloses when operating, can once only absorb, easy operation, easy to go up the hand, greatly reduced the sample disability rate. Each part spare part such as liquid pipette, injection cylinder, hose and shelf can be unpack apart and preserve, does not account for the space, has obtained fine result of use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.

Example 1: as shown in the attached figure 1, the easily-controlled solution quantitative suction device comprises a syringe 8 and a pipette 4, wherein the front end of the syringe 8 is connected with a bent pipe 9 through a hose I7, the bent pipe 9 is connected with the pipette 4 through a hose II 6, a test tube clamp I12 is arranged on the outer side of the syringe 8, the bottom end of the test tube clamp I12 is connected with a support rod I13, the bottom end of the support rod I13 is inserted into a sleeve I15 and is fixed through a locking screw I14, the sleeve I15 is fixedly connected onto a base I16, a test tube clamp II 5 is arranged on the pipette 4, the bottom surface of the test tube clamp II 5 is connected with a support rod II 2, the bottom end of the support rod II 2 is inserted into a sleeve II 1 and is fixed through a locking screw II 3.

Furthermore, the elbow 9 is a 90-degree right-angle elbow structure, a nozzle 11 is connected to the top end face of the elbow 9, and a pipe plug 10 is arranged on the nozzle 11.

When the handle of the injection tube 8 is moved to suck the liquid to the required amount, the pipette 4 is moved out of the container beside the pipette, the tube plug 10 is unscrewed, air enters the pipette, the liquid naturally flows out, the situation that the liquid completely flows out due to negative pressure in the injection tube 8 is avoided, more liquid is obtained than the actual liquid, and one drop of liquid is remained at the liquid outlet of the pipette 4 after the liquid naturally flows out under the ordinary condition. When the liquid is sucked by a large amount, the pipe plug 10 can be slightly unscrewed, a small amount of air is put in, the liquid slowly flows out slightly, and the tightness of the pipe plug 10 can adjust the air inlet amount until the required amount is reached, so that the liquid outflow speed is adjusted, and finally the required amount is controlled.

Further, all be equipped with the scale on the outer wall of injection cylinder 8 and pipette 4.

Further, the volume of the syringe 8 is larger than the volume of the pipette 4.

The working principle is as follows: before liquid reagent absorbs, with pipette 4, connect, injection tube 8 and support equipment, move up pipette 4, injection tube 8 returns to zero, screw up stopcock 10 above injection tube 8, the volumetric flask that is equipped with liquid reagent puts under pipette 4, and the beaker or other containers that accept liquid are put on the right of volumetric flask. Begin to absorb liquid, put into the volumetric flask with pipette 4 according to the degree of depth of required liquid slowly, toward the handle of pulling injection tube 8 outward, absorb liquid, eyes move along with liquid upper liquid level, until required volume, ejecting with the bolt on the 8 handles of injection tube of thumb this moment, block 8 handles of injection tube, prevent 8 handles of injection tube from moving left. If the suction amount is too large, the plug 10 above the bent pipe 9 is slightly unscrewed, the liquid level of the pipette 4 is lowered to the required scale mark, the plug 10 is screwed down, the pipette 4 is lifted and moved right above the beaker, and the plug 10 is completely unscrewed, so that the liquid completely flows out. If the same liquid is sucked, the pipette 4 does not need to be replaced, and if different liquids are sucked, the pipette 4 needs to be replaced to operate.

The parts of the present invention not described in detail are the known techniques of those skilled in the art. Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims (4)

1. The utility model provides an easy solution ration suction means of control which characterized in that: it includes injection tube (8) and pipette (4), the front end of injection tube (8) is connected with return bend (9) through hose (7), return bend (9) are connected with pipette (4) through hose two (6), injection tube (8) outside is equipped with test tube clamp (12), the bottom connection of test tube clamp (12) has bracing piece (13), bracing piece (13) bottom is inserted in sleeve pipe (15) and is fixed with locking screw (14), sleeve pipe (15) fixed connection is on base (16), be equipped with test tube clamp two (5) on pipette (4), the bottom surface of test tube clamp two (5) is connected with bracing piece two (2), bracing piece two (2) bottom is inserted in sleeve pipe two (1) and is fixed with locking screw two (3), sleeve pipe two (1) fixed connection is on base two (17).

2. The easy-to-control solution quantitative suction device according to claim 1, wherein: the elbow (9) is of a 90-degree right-angle elbow structure, the top end face of the elbow (9) is connected with a nozzle (11), and a pipe plug (10) is arranged on the nozzle (11).

3. The easy-to-control solution quantitative suction device according to claim 1, wherein: the outer walls of the injection tube (8) and the pipette (4) are provided with graduated scales.

4. The easy-to-control solution quantitative suction device according to claim 1, wherein: the volume of the injection cylinder (8) is larger than the volume of the pipette (4).

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