CN220176930U - Adjustable pipettor - Google Patents

Abstract

The utility model relates to the technical field of biochemical experiment pipetting tools, in particular to an adjustable pipetting device which comprises an adjustable pipetting device body and a placement component, wherein the placement component comprises a back plate, a rotating piece, a connecting frame, a hook, a fixed block, a holding part and a fixed piece, the adjustable pipetting device body is used for quantitatively transferring liquid to achieve an adjustable effect by limiting the formation of a piston through a screw rod on the end of an internal piston, the back plate is used for supporting the rotating piece to rotate the connecting frame, the holding part is used for facilitating the experimenters to hold the adjustable pipetting device body when the connecting frame is stored, after the adjustable pipetting device body is used, the fixed piece is operated to loosen the fixed block on the hook to break the connecting frame through the rotating piece, so that the hook is unfolded, and then the hook can be used for any one device capable of being hung, so that the placement of the adjustable pipetting device body is improved.

Description

Adjustable pipettor

Technical Field

The utility model relates to the technical field of biochemical experiment pipetting tools, in particular to an adjustable pipetting device.

Background

The working principle of the liquid transfer device is mainly that the inner volume of a piston cylinder is changed by utilizing the linear movement of a special piston in the liquid transfer device in the piston cylinder, so that the liquid is sucked or discharged, and the purpose of quantitatively transferring the liquid is achieved.

The prior art (CN 101559389B) discloses an adjustable pipette and an adjusting device thereof, which is disposed in a housing of the pipette having an axis and comprises: a screw having an operating end and a piston end, rotatable and movable along an axis, at least a portion of the screw extending within the housing; the nut is arranged in the shell near the piston end in a non-rotatable mode but can move along the axis and is in threaded fit with the screw rod; and one end of the elastic piece is connected with the shell, the other end of the elastic piece is connected with the nut, the tension applied by the elastic piece to the nut prevents the nut from moving towards the piston end and can pull the nut back towards the operating end and the inner sleeve, and the elastic piece is arranged in the shell in a mode of moving along the axis and limits the travel of the screw rod relative to the inner sleeve along the axis.

However, by adopting the mode, the adjustable liquid transfer device body is widely applied to various experiments, and the placement universality is not high because the adjustable liquid transfer device body needs a special bracket to be placed after being used in a large amount.

Disclosure of Invention

The utility model aims to provide an adjustable liquid dispenser, which aims to solve the problem that the placement universality is low because the adjustable liquid dispenser body of the existing equipment is widely applied to various experiments and needs a special bracket after being used in large quantity.

In order to achieve the above object, the present utility model provides an adjustable pipette, comprising an adjustable pipette body and a placement component,

the placing component comprises a back plate, a rotating piece, a connecting frame, a hook, a fixed block, a holding part and a fixed piece;

the backboard is fixedly connected with the adjustable liquid transfer device body and is positioned at one side of the adjustable liquid transfer device body; the rotating piece is arranged on one side of the back plate; the connecting frame is positioned at one side of the rotating piece; the hook is fixedly connected with the connecting frame and is positioned at one side of the connecting frame; the fixed block is fixedly connected with the hook and is positioned at the side edge of the hook; the holding part is fixedly connected with the connecting frame and is positioned at one side of the connecting frame; the fixing piece is arranged on one side of the backboard.

The rotating piece comprises a rotating block, a rotating shaft and a locking screw rod, wherein the rotating block is fixedly connected with the back plate and is positioned on one side of the back plate; the rotating shaft is fixedly connected with the rotating block, is rotationally connected with the connecting frame and is positioned at one side of the rotating block; the locking screw is rotationally connected with the connecting frame, is in threaded connection with the rotating shaft and is positioned on one side of the connecting frame.

The holding part comprises a grab handle, a limiting frame and an anti-slip skin, wherein the grab handle is fixedly connected with the connecting frame and is positioned at one side of the connecting frame; the limit frame is fixedly connected with the grab handle and is positioned at one side of the grab handle; the anti-slip skin is fixedly connected with the grab handle and is positioned on one side of the grab handle.

The fixing piece comprises an inserting frame, a pull rod, a rebound board and a rebound spring, wherein the inserting frame is fixedly connected with the back plate and is positioned on one side of the back plate; the pull rod is connected with the plug frame in a sliding manner and is positioned at one side of the plug frame; the rebound board is fixedly connected with the pull rod and is positioned at one side of the pull rod; the rebound spring is fixedly connected with the rebound plate and the plug frame respectively and is positioned between the rebound plate and the plug frame.

The fixing piece further comprises a pulling cover, wherein the pulling cover is fixedly connected with the pull rod and is positioned on one side of the pulling cover.

According to the adjustable liquid dispenser, the adjustable liquid dispenser body is used for quantitatively transferring liquid, the piston is limited to form through the screw rod on the inner piston end to achieve an adjustable effect, the back plate is used for supporting the rotating piece to rotate the connecting frame, the holding part is used for facilitating an experimenter to hold the adjustable liquid dispenser body when the connecting frame is stored, after the use of the adjustable liquid dispenser body is finished, the fixing piece is operated to loosen the fixing block on the hook to break the connecting frame, the hook is unfolded through the rotating piece, and then the hook can be used for being placed by finding a device capable of being hung at will, so that the placement universality of the adjustable liquid dispenser body is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic overall structure of a first embodiment of the present utility model.

Fig. 2 is a schematic overall structure of a second embodiment of the present utility model.

101-adjustable pipettor body, 102-backplate, 103-rotor, 104-link, 105-couple, 106-fixed block, 107-grip, 108-fixed block, 109-rotor, 110-spindle, 111-locking screw, 112-grab handle, 113-limit frame, 114-anti-slip skin, 115-insert frame, 116-pull rod, 117-rebound plate, 118-rebound spring, 201-pull cover.

Detailed Description

The first embodiment of the utility model is as follows:

referring to fig. 1, fig. 1 is a schematic overall structure of a first embodiment of the present utility model.

The utility model discloses an adjustable pipettor, which comprises an adjustable pipettor body 101 and a placement component, wherein the placement component comprises a back plate 102, a rotating piece 103, a connecting frame 104, a hook 105, a fixed block 106, a holding part 107 and a fixed piece 108, the rotating piece 103 comprises a rotating block 109, a rotating shaft 110 and a locking screw 111, the holding part 107 comprises a grab handle 112, a limiting frame 113 and an anti-slip cover 114, and the fixed piece 108 comprises an inserting frame 115, a pull rod 116, a rebound plate 117 and a rebound spring 118.

For this embodiment, the adjustable pipette body 101 is configured to quantitatively transfer liquid to achieve an adjustable effect by limiting formation of a piston by a screw on an inner piston end, and a specific usage manner refers to a patent document of publication No. CN101559389B, which is not described in detail herein.

The backboard 102 is fixedly connected with the adjustable liquid dispenser body 101 and is positioned at one side of the adjustable liquid dispenser body 101; the rotating member 103 is disposed at one side of the back plate 102; the connecting frame 104 is positioned on one side of the rotating piece 103; the hook 105 is fixedly connected with the connecting frame 104 and is positioned at one side of the connecting frame 104; the fixing block 106 is fixedly connected with the hook 105 and is positioned at the side edge of the hook 105; the holding part 107 is fixedly connected with the connecting frame 104 and is positioned at one side of the connecting frame 104; the fixing piece 108 is arranged on one side of the back plate 102, the adjustable liquid transfer device body 101 is used for quantitatively transferring liquid, the formation of a limiting piston is carried out through a screw rod on the inner piston end to achieve an adjustable effect, the back plate 102 is used for supporting the rotating piece 103 to rotate the connecting frame 104, the holding part 107 is used for facilitating an experimenter to hold the adjustable liquid transfer device body 101 when the connecting frame 104 is stored, after the use of the adjustable liquid transfer device body 101 is finished, the fixing piece 108 is operated to loosen the fixing piece 106 on the hanging hook 105 to break the connecting frame 104, the hanging hook 105 is unfolded through the rotating piece 103, and then the hanging hook 105 is used for randomly finding one hanging device to place, so that the placement universality of the adjustable liquid transfer device body 101 is improved.

Secondly, the rotating block 109 is fixedly connected with the back plate 102 and is located at one side of the back plate 102; the rotating shaft 110 is fixedly connected with the rotating block 109, is rotatably connected with the connecting frame 104, and is positioned at one side of the rotating block 109; the locking screw 111 is rotatably connected with the connecting frame 104, is in threaded connection with the rotating shaft 110, and is located at one side of the connecting frame 104, the rotating block 109 is used for supporting the rotating shaft 110 to rotate, the locking screw 111 is used for fixing the connecting frame 104 to the rotating shaft 110, the rotating shaft 110 supports the connecting frame 104 to rotate, when the connecting frame 104 needs to be hung, the connecting frame 104 is unfolded and screwed to tightly lock the connecting frame 104, and the hanging can be achieved through the hanging hook 105 after the connecting frame 104 is fixed.

Again, the handle 112 is fixedly connected with the connecting frame 104 and located at one side of the connecting frame 104; the limit frame 113 is fixedly connected with the grab handle 112 and is positioned at one side of the grab handle 112; the anti-slip skin 114 is fixedly connected with the grab handle 112 and is located on one side of the grab handle 112, the grab handle 112 is used for facilitating an experimenter to hold the adjustable pipette body 101 when the connecting frame 104 is stored, and the anti-slip skin 114 is used for increasing friction force to be matched with the limit frame 113 to prevent hand sliding.

In addition, the insert frame 115 is fixedly connected with the back plate 102 and is located at one side of the back plate 102; the pull rod 116 is slidably connected with the insert frame 115 and is positioned at one side of the insert frame 115; the rebound board 117 is fixedly connected with the pull rod 116 and is positioned at one side of the pull rod 116; the resilient springs 118 are respectively and fixedly connected with the resilient plates 117 and the insert frame 115, and are located between the resilient plates 117 and the insert frame 115, when the connecting frame 104 needs to be unfolded, the pull rods 116 are pulled to enable the resilient springs 118 to shrink, so that the pull rods 116 are far away from the fixed blocks 106, and the connecting frame 104 is pulled to draw the fixed blocks 106 away from the insert frame 115, so that the connecting frame 104 is unfolded.

In the use of the adjustable pipettor disclosed by the utility model, the adjustable pipettor body 101 is used for quantitatively transferring liquid to achieve an adjustable effect by limiting the formation of a piston through the screw on the inner piston end, the back plate 102 is used for installing the rotating block 109 to be matched with the rotating shaft 110 to support the connecting frame 104 for rotation, the locking screw 111 is used for fixing the connecting frame 104 on the rotating shaft 110 to support the connecting frame 104 for rotation through the rotating shaft 110, the grab handle 112 is used for facilitating an experimenter to hold the adjustable pipettor body 101 by hand when the connecting frame 104 is stored, the anti-slip skin 114 is used for increasing friction force to be matched with the limiting frame 113 to prevent manual sliding, after the use of the adjustable pipettor body 101 is finished, the pull rod 116 is operated to be pulled so as to shrink the pull rod 116 to be far away from the fixing block 106, the fixing block 106 can be separated from the inserting frame 115, after the connecting frame 104 is completely pulled out, then the connecting frame 104 is enabled to be unfolded, the connecting frame 105 can be pulled off, the hook 105 can be pulled off, and then the hook 105 can be placed on the hook and the hook is placed on the hook after the connecting frame 104 is used, and the hook is placed on the hook is used for fixing the hook, and the adjustable pipettor the hook is used for holding the hook by using the adjustable pipettor for holding the hook.

The second embodiment of the utility model is as follows:

referring to fig. 2, fig. 2 is a schematic overall structure of a second embodiment of the present utility model.

On the basis of the first embodiment, the adjustable pipette provided by the utility model, the fixing piece 108 further comprises a pulling cover 201.

The pulling cover 201 is fixedly connected with the pull rod 116 and is located at one side of the pulling cover 201, and the pulling cover 201 is more convenient when being used for pulling the pull rod 116.

In the adjustable pipette of this embodiment, the pulling cap 201 is more convenient for pulling the pull rod 116.

The foregoing disclosure is only illustrative of one or more preferred embodiments of the present utility model, and it is not intended to limit the scope of the claims hereof, as persons of ordinary skill in the art will understand that all or part of the processes for practicing the embodiments described herein may be practiced with equivalent variations in the claims, which are within the scope of the utility model.

Claims (5)

1. An adjustable pipettor comprises an adjustable pipettor body, and is characterized in that,

also comprises a placement component which is used for placing the articles,

the placing component comprises a back plate, a rotating piece, a connecting frame, a hook, a fixed block, a holding part and a fixed piece;

the backboard is fixedly connected with the adjustable liquid transfer device body and is positioned at one side of the adjustable liquid transfer device body; the rotating piece is arranged on one side of the back plate; the connecting frame is positioned at one side of the rotating piece; the hook is fixedly connected with the connecting frame and is positioned at one side of the connecting frame; the fixed block is fixedly connected with the hook and is positioned at the side edge of the hook; the holding part is fixedly connected with the connecting frame and is positioned at one side of the connecting frame; the fixing piece is arranged on one side of the backboard.

2. An adjustable pipette as recited in claim 1 wherein,

the rotating piece comprises a rotating block, a rotating shaft and a locking screw rod, wherein the rotating block is fixedly connected with the back plate and is positioned on one side of the back plate; the rotating shaft is fixedly connected with the rotating block, is rotationally connected with the connecting frame and is positioned at one side of the rotating block; the locking screw is rotationally connected with the connecting frame, is in threaded connection with the rotating shaft and is positioned on one side of the connecting frame.

3. An adjustable pipette as set forth in claim 2 wherein,

the holding part comprises a grab handle, a limiting frame and an anti-slip skin, wherein the grab handle is fixedly connected with the connecting frame and is positioned at one side of the connecting frame; the limit frame is fixedly connected with the grab handle and is positioned at one side of the grab handle; the anti-slip skin is fixedly connected with the grab handle and is positioned on one side of the grab handle.

4. An adjustable pipette as set forth in claim 3 wherein,

the fixing piece comprises an inserting frame, a pull rod, a rebound board and a rebound spring, wherein the inserting frame is fixedly connected with the backboard and is positioned at one side of the backboard; the pull rod is connected with the plug frame in a sliding manner and is positioned at one side of the plug frame; the rebound board is fixedly connected with the pull rod and is positioned at one side of the pull rod; the rebound spring is fixedly connected with the rebound plate and the plug frame respectively and is positioned between the rebound plate and the plug frame.

5. An adjustable pipette as recited in claim 4 wherein,

the fixing piece further comprises a pulling cover, wherein the pulling cover is fixedly connected with the pull rod and is positioned on one side of the pulling cover.