CN209829029U - Pipettor auxiliary device - Google Patents

Abstract

The utility model relates to the technical field of experimental equipment, and discloses a pipettor auxiliary device, which comprises a movable plate and a support rod; the left end and the right end of the movable plate are fixedly provided with rectangular sliding sleeves, the center of each sliding sleeve is connected with a vertical supporting rod in a sliding mode, the lower portion of one side of each sliding sleeve is provided with a screwing knob, the movable plate is uniformly provided with a plurality of groups of circular insertion holes from left to right, liquid-transfering guns are inserted into the insertion holes, a plurality of groups of second springs are arranged on the outer rings of the insertion holes, the bottom ends of the liquid-transfering guns are fixedly communicated with gun heads, and pore plates are fixedly placed under; the outside cover of rifle head is equipped with the gun case, and the top fixed mounting of gun case has the clamp cover, presss from both sides the cover and sets up to annular structure, and the inside that presss from both sides the cover is provided with the first spring of round, and a plurality of groups through-hole have been seted up on the surface of gun case, and the bottom of gun case sets up to circular cone type structure. The utility model has the advantages that: the working efficiency is high, a plurality of liquid-transfering guns can be used simultaneously, and the applicability is strong.

Description

Pipettor auxiliary device

Technical Field

The utility model relates to an experimental facilities technical field specifically is a pipettor auxiliary device.

Background

The liquid transfer device is a device for quantitatively transferring liquid and is widely applied to the fields of biology, chemistry and the like. Many pipetting operations require transferring supernatant liquid from a vessel while retaining a pellet. During this pipetting operation, the tip of the pipette is required not to touch the sediment, otherwise the sample will be contaminated and the tip will be blocked. This operation therefore requires careful observation of the position and angle of the tip below the liquid surface at all times.

Chinese patent (publication No. CN 205700597U, published japanese 2016.11.23) discloses a pipette auxiliary device, which includes a fixing frame and a clamp, wherein the fixing frame is vertically disposed on a horizontal plane, a chuck for clamping a pipette is disposed on the clamp, the end of the clamp is connected to the fixing frame, and the clamp can move up and down to adjust the position of the pipette. The pipettor is clamped in the chuck of the clamp, then the upper position and the lower position of the clamp on the fixing frame are adjusted, so that the suction head at the lower end of the pipettor is as close to the bottom of the container as possible without touching the bottom of the container to precipitate, and the pipetting operation can be carried out after the adjustment is finished. However, this device can only work with one pipette, and has low working efficiency, and when sucking the liquid in the animal cells, clogging is likely to occur, and applicability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pipettor auxiliary device to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pipettor auxiliary device comprises a movable plate and a support rod; the left end and the right end of the movable plate are fixedly provided with rectangular sliding sleeves, and the centers of the sliding sleeves are connected with vertical supporting rods in a sliding mode. The movable plate can slide up and down on the supporting rod through the sliding sleeve, the lower part of one side of the sliding sleeve is provided with a screwing knob, and the screwing knob is arranged to control the movable plate to move up and down. A plurality of groups of circular jacks are uniformly formed in the movable plate from left to right, the liquid-transferring guns are inserted into the jacks, a plurality of groups of second springs are arranged on the outer rings of the jacks, the sizes of the apertures of the jacks can be changed randomly by the aid of the second springs, and the liquid-transferring guns in different sizes can be placed into the jacks. The bottom end of the liquid-transfering gun is fixedly communicated with a gun head, a pore plate is fixedly placed under the liquid-transfering gun, and liquid in the pore plate is sucked through the gun head to work.

When a pipette is needed to suck liquid in cells placed in a pore plate, the situation that the pipette head is blocked can be caused by using the pipette head, a gun sleeve is required to be sleeved on the outer side of the pipette head, a clamping sleeve is fixedly mounted at the top of the gun sleeve and is arranged in an annular structure, a circle of first spring is arranged in the clamping sleeve, the aperture of the clamping sleeve can be changed due to the arrangement of the first spring, the clamping sleeve can be mounted on the pipette heads with different sizes, a plurality of groups of through holes are formed in the surface of the gun sleeve, the bottom end of the gun sleeve is arranged in a conical structure, the bottom end of the gun sleeve is inserted into the cells by sleeving the gun sleeve on the outer side of the pipette head, then the liquid in the cells enters the inner part of the gun sleeve through the through holes, and then the liquid is conveyed to the upper.

As a further aspect of the present invention: the bottom fixed mounting of bracing piece has the sucking disc, the stability of multiplicable bracing piece bottom of setting up of sucking disc.

As a further aspect of the present invention: and scale marks for measuring the height of the movable plate are marked on one side of the supporting rod.

As a further aspect of the present invention: the inner ring of the jack is provided with an anti-skid sleeve for preventing the surface of the gun rod of the liquid-transferring gun from being damaged.

As a further aspect of the present invention: the lower part of one side of the gun case is fixedly provided with an infrared distance measuring instrument, the infrared distance measuring instrument is arranged for detecting the distance from the bottom end of the gun case to the bottom of the pore plate, and the bottom end of the gun case is prevented from contacting the inner bottom of the pore plate, so that the normal use of the gun case is damaged.

Compared with the prior art, the beneficial effects of the utility model are that: a plurality of jacks are arranged, so that a plurality of pipette guns can be used simultaneously; the second spring is arranged in the jack, so that the aperture size can be changed at will, and then the pipette guns with different sizes can be placed in the jack; the gun sleeve is sleeved outside the gun head, so that the liquid in the cells can be sucked by the liquid-transferring gun, the blockage cannot occur, and the applicability of the device is improved. The utility model has the advantages that: the working efficiency is high, a plurality of liquid-transfering guns can be used simultaneously, and the applicability is strong.

Drawings

Fig. 1 is a schematic structural diagram of a pipette assistance device.

Fig. 2 is a schematic top view of a pipette assistance device.

Fig. 3 is a schematic structural view of a holster in a pipette assist device.

Fig. 4 is a schematic structural view of a receptacle in a pipette assist device.

Wherein: the device comprises a movable plate 10, a support rod 11, a suction cup 12, scale marks 13, a tightening knob 14, a jack 15, a liquid transfer gun 16, an anti-skidding sleeve 17, a pore plate 18, a gun head 19, a gun sleeve 20, a through hole 21, a jacket 22, an infrared distance meter 23, a sliding sleeve 24, a first spring 25 and a second spring 26.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

The first embodiment is as follows:

referring to fig. 1 to 4, an auxiliary device for a pipette includes a movable plate 10 and a support rod 11; the left end and the right end of the movable plate 10 are fixedly provided with rectangular sliding sleeves 24, the center of the sliding sleeve 24 is connected with a vertical supporting rod 11 in a sliding manner, the bottom end of the supporting rod 11 is fixedly provided with a sucker 12, and the sucker 12 is arranged to increase the stability of the bottom of the supporting rod 11. The movable plate 10 can slide up and down on the support rod 11 by means of a sliding sleeve 24, a tightening knob 14 is provided at a lower portion of one side of the sliding sleeve 24, and the tightening knob 14 is provided to control the up and down movement of the movable plate 10. One side of the support bar 11 is marked with a scale line 13 for measuring the height of the movable plate 10. A plurality of groups of circular jacks 15 are uniformly formed in the movable plate 10 from left to right, the liquid-transferring guns 16 are inserted into the jacks 15, a plurality of groups of second springs 26 are arranged on the outer rings of the jacks 15, the pore sizes of the jacks 15 can be randomly changed due to the arrangement of the second springs 26, and the liquid-transferring guns 16 with different sizes can be placed into the pores. The inner circle of the insertion hole 15 is provided with an anti-slip sleeve 17 which prevents the surface of the gun rod of the pipette 16 from being damaged. The bottom end of the liquid-transferring gun 16 is fixedly communicated with a gun head 19, a pore plate 18 is fixedly placed under the liquid-transferring gun 16, and liquid in the pore plate 18 is sucked through the gun head 19 to work.

When the pipette 16 is required to suck liquid in cells placed in the pore plate 18, the situation that the pipette head 19 is blocked can be caused by using the pipette head 19, at this time, a gun case 20 needs to be sleeved outside the pipette head 19, a jacket 22 is fixedly installed at the top of the gun case 20, the jacket 22 is set to be of an annular structure, a circle of first spring 25 is arranged inside the jacket 22, the diameter of the jacket 22 can be changed by setting the first spring 25, so that the jacket 22 can be installed on the pipette heads 19 with different sizes, a plurality of groups of through holes 21 are formed in the surface of the gun case 20, the bottom end of the gun case 20 is set to be of a conical structure, the bottom end of the gun case 20 is inserted into the cells by sleeving the gun case 20 outside the pipette head 19, then the liquid in the cells enters the gun case 20 through the through holes 21, and then is conveyed to the upper portion of the pipette 16 through the gun head 19.

The utility model discloses a theory of operation is: firstly, the pipette gun 16 is inserted into the insertion hole 15, then the experimental liquid to be extracted is put into the pore plate 18, and then the height of the movable plate 10 is adjusted up and down, so that the bottom end of the gun sleeve 20 extends into the pore plate 18.

Example two:

on the basis of the first embodiment, the infrared distance measuring instrument 23 is fixedly installed at the lower part of one side of the holster 20, and the infrared distance measuring instrument 23 is used for detecting the distance from the bottom end of the holster 20 to the bottom of the orifice plate 18, so that the bottom end of the holster 20 is prevented from contacting the inner bottom of the orifice plate 18, and the normal use of the holster 20 is prevented from being damaged.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (5)

1. A pipette assist device includes a movable plate (10) and a support rod (11); the liquid transferring gun is characterized in that a plurality of groups of round insertion holes (15) are uniformly formed in the movable plate (10) from left to right, a liquid transferring gun (16) is inserted into the insertion holes (15), a plurality of groups of second springs (26) are arranged on the outer ring of the insertion holes (15), the bottom end of the liquid transferring gun (16) is fixedly communicated with a gun head (19), and a pore plate (18) is fixedly placed under the liquid transferring gun (16);

the outside cover of rifle head (19) is equipped with gun case (20), and the top fixed mounting of gun case (20) has pressed from both sides cover (22), and it sets up to annular structure to press from both sides cover (22), and the inside that presss from both sides cover (22) is provided with round first spring (25), and a plurality of groups through-hole (21) have been seted up on the surface of gun case (20), and the bottom of gun case (20) sets up to circular cone type structure.

2. A pipette aid according to claim 1, characterised in that a suction cup (12) is fixedly mounted at the bottom end of the support rod (11).

3. The pipette aid according to claim 2, characterized in that one side of the support bar (11) is imprinted with graduation marks (13) for measuring the height of the movable plate (10).

4. A pipette aid according to claim 3, characterised in that the inner ring of the receptacle (15) is provided with an anti-slip sleeve (17) which prevents damage to the surface of the shank of the pipette (16).

5. A pipette aid according to any one of claims 1 to 4, characterised in that an infrared distance meter (23) is fixedly mounted on the lower part of one side of the holster (20).