CN218003339U

CN218003339U - Quantitative liquid feeding device for liquid chromatograph

Info

Publication number: CN218003339U
Application number: CN202221856574.5U
Authority: CN
Inventors: 陈忠; 徐宝宝; 张雨轩
Original assignee: Anhui Huanxuan Material Technology Co ltd
Current assignee: Anhui Huanxuan Material Technology Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-12-09
Anticipated expiration: 2032-07-19

Abstract

The utility model discloses a liquid chromatograph sends liquid device with ration relates to chromatograph technical field. The utility model discloses a base, the base external fixation has the liquid reserve tank, the base external fixation has the pump machine, the base external fixation has the extension board, the inside quantitative case that is provided with of extension board, the outside bottom surface of quantitative case is fixed with electric valve, the inside roof that is provided with of quantitative incasement, the inside both sides of roof are provided with the screw rod, the roof passes through the screw rod and is connected with the quantitative case, the roof external fixation has shift knob, the outage and the opening of electric valve of shift knob control pump machine, the pump machine external fixation has the feed liquor pipe, the feed liquor pipe is linked together with the liquid reserve tank. The utility model discloses a set up quantitative case and roof to realized having avoided appearing annotating the injecing of liquid volume, having injecing the volume of liquid through the high position of adjusting the roof in the problem that liquid is too much or not enough, just so can guarantee that the liquid content of pouring into liquid chromatograph can not exceed standard or not enough, thereby guarantee the accuracy of testing result.

Description

Quantitative liquid feeding device for liquid chromatograph

Technical Field

The utility model belongs to the technical field of the chromatograph, especially, relate to a liquid device is sent with ration to liquid chromatograph.

Background

A chromatograph is an apparatus for performing chromatographic separation analysis. Comprises a sample introduction system, a detection system, a recording and data processing system, a temperature control system, a mobile phase control system and the like. Modern chromatographs have the characteristics of stability, sensitivity, versatility, high degree of automation and the like. There are gas chromatography, liquid chromatography, gel chromatography, and the like. These chromatographs are widely used in chemical products, for analyzing certain content of polymer materials, for gel chromatography, and for determining molecular weight and distribution of polymer materials, and liquid chromatography may need to supplement solvent when working, but it still has the following disadvantages in practical use:

1. when the existing liquid chromatograph is used for delivering liquid, the liquid injected into the chromatograph cannot be quantified, so that the content of the liquid is too high or too low easily during detection, and the detection result is inaccurate;

2. the liquid chromatograph can not stop sending liquid in time after the liquid sending is finished, so that residual liquid in the infusion tube is easily injected into the liquid chromatograph, the liquid injection content is not standard, and the detection result is influenced.

Therefore, the conventional quantitative liquid feeding device for a liquid chromatograph cannot meet the requirements in practical use, and therefore, an improved technology is urgently needed in the market to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid device is sent with ration to liquid chromatograph, through the setting of ration case and shift knob, has solved the problem that the ration was annotated liquid and was stopped annotating the liquid.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a liquid chromatograph is with ration liquid feeding device, the on-line screen storage device comprises a base, the base external fixation has the liquid reserve tank, the base external fixation has the pump machine, the base external fixation has the extension board, the inside quantitative case that is provided with of extension board, quantitative outside of the case bottom surface is fixed with electric valve, just can flow through electric valve after the sufficient quantitative liquid of quantitative incasement portion storage like this, quantitative incasement portion is provided with the roof, the inside both sides of roof are provided with the screw rod, the roof passes through the screw rod and is connected with quantitative case, the roof external fixation has shift knob, shift knob control pump machine's outage and electric valve's opening, the pump machine external fixation has the feed liquor pipe, the feed liquor pipe is linked together with the liquid reserve tank, the pump machine external fixation has the drain pipe, the drain pipe is linked together with quantitative incasement portion.

Further, the cistern has been seted up to inside one side of liquid reserve tank, and the user just can observe the inside liquid surplus of liquid reserve tank through the cistern like this, the observation groove has been seted up to quantitative incasement portion both sides, it has the scale to observe the groove external surface, like this when the high position of adjusting the roof, just can fix a position through the outside scale of observation groove, quantitative incasement portion upper end both sides are fixed with the fixed plate, the screw has been seted up to fixed plate inside, and the screw rod just can be installed between the screw is inside like this.

Furthermore, box grooves are formed in two sides of the interior of the support plate, the quantitative box is located between the box grooves, the quantitative box can be placed between the interior of the support plate to be fixed, pipe holes are formed in the top surface of the interior of the support plate, the liquid outlet pipe is located between the interiors of the pipe holes, the liquid outlet pipe can enter the quantitative box through the pipe holes, screw holes are formed in two sides of the top surface of the interior of the support plate, and the screw rods are located between the interiors of the pipe holes.

Further, the pipe hole is opened in the top plate, so that the liquid outlet pipe can penetrate through the top plate to enter the quantitative box, fixing rings are fixed to two sides of the top surface of the top plate, clamping blocks are fixed to the periphery of the bottom surface of the top plate, the liquid outlet hole can be blocked by the clamping blocks, a switch button is fixed to the bottom surface of the top plate, and the switch button can be touched and triggered by the liquid storage box when the liquid storage box floats.

Further, the pump machine one end is being kept away from to the drain pipe outside is fixed with the liquid storage box, liquid hole has been seted up to the outside top surface of liquid storage box, liquid hole diameter equals the fixture block diameter, and what the fixture block just so can be better carries out the shutoff with liquid hole, shift knob adopts waterproof material to make, and shift knob just can not take place accident when contact liquid like this.

Further, the outside top surface of screw rod is fixed with the knob, just can drive the screw rod and rotate when rotating the knob like this, the knob outside is carved with the decorative pattern, and just can be more convenient when adjusting screw like this, the screw is inside to be carved with the screw thread, and the screw inside screw thread is identical with the outside screw thread of screw rod, and the screw rod just can be in the inside rotatory lift of screw like this, the outside bottom surface of screw rod is fixed with the plectane, the plectane is located between solid fixed ring is inside.

Further, pump machine and electric valve all adopt the double switch to control, and shift knob closes the pump machine with electric valve opens the back like this, can control the pump machine again through other switches and start and the electric valve is closed, just so can accomplish the work of mutually supporting with the double switch, the stock solution box is located between dosing box and the roof is inside, the stock solution box adopts light material to make, and the stock solution box just can float through the buoyancy of liquid like this.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up quantitative case and roof to realized annotating the injecing of liquid volume, avoided appearing annotating the too much or not enough problem of liquid, the volume of liquid is injecing through the high position of adjusting the roof, just so can guarantee that the liquid content of injecting into liquid chromatograph can not exceed standard or not enough, thereby guarantees the accuracy of testing result.

2. The utility model discloses a shift knob sets up, can guarantee to stop pump machine work and opening of valve immediately after liquid content is up to standard, and the setting of stock solution box and fixture block can carry out the shutoff with the remaining liquid in the play liquid pipe effectively simultaneously, and then has avoided remaining liquid in the pipeline to get into inside the liquid chromatograph, and this device has simple structure, convenient to use, excellent in use effect's advantage.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a schematic structural view of the pump of the present invention;

FIG. 3 is a schematic view of the structure of the middle support plate and the quantitative box of the present invention;

FIG. 4 is a schematic view of the structure of the middle support plate of the present invention;

FIG. 5 is a schematic view of the structure of the quantitative box and the top plate of the present invention;

FIG. 6 is a schematic view of the structure of the quantitative box of the present invention;

fig. 7 is a top view of the middle roof structure of the present invention;

fig. 8 is a bottom view of the middle top plate structure of the present invention;

fig. 9 is a schematic view of the structure of the middle screw rod of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a liquid storage tank; 11. a liquid bath; 2. a support plate; 21. a tank trough; 22. a tube hole; 23. a screw hole; 3. a quantitative box; 31. an observation tank; 32. a fixing plate; 4. a base; 5. a pump machine; 51. a liquid inlet pipe; 52. a liquid outlet pipe; 53. a liquid storage box; 531. a liquid outlet hole; 6. a knob; 61. a screw; 62. a circular plate; 7. a top plate; 71. a fixing ring; 72. a clamping block; 73. and a button is switched on and off.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Please refer to fig. 1-9, the utility model relates to a liquid chromatograph is with ration liquid feeding device, including base 4, base 4 external fixation has liquid reserve tank 1, base 4 external fixation has pump 5, base 4 external fixation has extension board 2, extension board 2 is inside to be provided with quantitative case 3, the outside bottom surface of quantitative case 3 is fixed with electric valve, just can flow out through electric valve after the sufficient quantitative liquid of quantitative case 3 internal storage like this, quantitative case 3 is inside to be provided with roof 7, the inside both sides of roof 7 are provided with screw rod 61, roof 7 is connected with quantitative case 3 through screw rod 61, roof 7 external fixation has shift knob 73, shift knob 73 controls the outage of pump 5 and the opening of electric valve, pump 5 external fixation has liquid inlet pipe 51, liquid inlet pipe 51 is linked together with liquid reserve tank 1, pump 5 external fixation has drain pipe 52, drain pipe 52 is linked together with quantitative case 3 internal fixation.

Preferably, cistern 11 has been seted up to inside one side of liquid storage tank 1, the user just can observe the liquid surplus of liquid storage tank 1 inside through cistern 11 like this, observation groove 31 has been seted up to the inside both sides of ration case 3, it is carved with the scale to observe groove 31 external surface, like this when the high position of adjusting roof 7, just can fix a position through the outside scale of observation groove 31, the inside upper end both sides of ration case 3 are fixed with fixed plate 32, screw 23 has been seted up to fixed plate 32 inside, screw 61 just can install between screw 23 is inside like this.

Preferably, case groove 21 has been seted up to the inside both sides of extension board 2, and quantitative case 3 is located between case groove 21 is inside, and quantitative case 3 just can be placed and fix between extension board 2 is inside like this, and support board 2 inside top surface has seted up tube hole 22, and drain pipe 52 is located between tube hole 22 is inside, and drain pipe 52 just can get into between quantitative case 3 is inside through tube hole 22 like this, and screw 23 has been seted up to the inside top surface both sides of extension board 2, and screw 61 is located between tube hole 22 is inside.

Preferably, pore hole 22 is opened in top plate 7 so that liquid outlet pipe 52 can pass through top plate 7 and enter quantitative box 3, fixing rings 71 are fixed to two sides of the top surface of top plate 7, and fixing blocks 72 are fixed around the bottom surface of top plate 7, so that liquid outlet hole 531 can be blocked by fixing blocks 72, switch button 73 is fixed to the bottom surface of top plate 7, and liquid storage box 53 can touch switch button 73 and trigger it when floating.

Preferably, the liquid storage box 53 is fixed at one end, far away from the pump 5, of the outer portion of the liquid outlet pipe 52, the liquid outlet hole 531 is formed in the top surface of the outer portion of the liquid storage box 53, the diameter of the liquid outlet hole 531 is equal to that of the fixture block 72, the fixture block 72 can better plug the liquid outlet hole 531, the switch button 73 is made of waterproof materials, and therefore accidents cannot happen when the switch button 73 contacts liquid.

Preferably, the outside top surface of screw rod 61 is fixed with knob 6, just can drive screw rod 61 and rotate when rotating knob 6 like this, knob 6 is carved with the decorative pattern outside, just can be more convenient like this when adjusting screw rod 61, screw 23 is inside carved with the screw thread, and the inside screw thread of screw 23 is identical with the outside screw thread of screw rod 61, screw rod 61 just can be in the inside rotatory lift of screw 23 like this, the outside bottom surface of screw rod 61 is fixed with plectane 62, plectane 62 is located between solid fixed ring 71 is inside.

Preferably, pump machine 5 and electrically operated valve all adopt the double switch to control, and shift knob 73 is closing pump machine 5 and electrically operated valve opens the back like this, can control pump machine 5 again through other switches and start and electrically operated valve closes, and the work of mutually supporting can be accomplished to the double switch like this, and stock solution box 53 is located between quantitative case 3 and the roof 7 is inside, and stock solution box 53 adopts light material to make, and stock solution box 53 just can float through the buoyancy of liquid like this.

The first embodiment is as follows:

as shown in fig. 5-6, when needing to use this device to send liquid, the height that roof 7 place was calculated out to the volume that the volume of sending liquid and the inside length of ration case 3, width and stock solution box 53 as required earlier, thereby rotatory knob 6 drives screw 61 and rotates between screw 23 is inside, thereby drive roof 7 and go up and down in ration case 3 is inside, observes through observing groove 31 and its outside scale mark simultaneously, until roof 7 is located suitable height, can start pump machine 5 like this and annotate liquid work.

The second embodiment:

as shown in fig. 1-9, when liquid injection is performed, the pump 5 sucks out liquid in the liquid storage tank 1 through the liquid inlet pipe 51, and conveys the liquid to the space between the insides of the liquid storage boxes 53 through the liquid outlet pipe 52, when the insides of the liquid storage boxes 53 are filled with the liquid, the liquid gradually overflows from the liquid outlet holes 531 and falls into the space between the insides of the quantitative box 3, then the insides of the quantitative box 3 are gradually filled with the liquid, then the liquid storage boxes 53 gradually float up under the buoyancy of the liquid until the liquid storage boxes 53 rise to the top plate 7, at this time, the liquid storage boxes 53 are attached to the outer bottom surface of the top plate 7, the fixture block 72 enters the space between the insides of the liquid outlet holes 531, so that the liquid can be temporarily blocked from overflowing from the liquid storage boxes 53, and meanwhile, the liquid storage boxes 53 collide with the switch buttons 73, so that the pump 5 can stop conveying the liquid, the electric valves are also opened, the liquid in the insides of the quantitative box 3 can be injected into the space between the insides of the liquid chromatograph through the electric valves, so that quantitative liquid can be injected into the liquid chromatograph.

The utility model discloses the theory of operation: the device determines the space volume inside the quantitative box 3 by adjusting the height position of the top plate 7, so that the effect of quantifying liquid can be achieved; the switch button 73 is triggered by the buoyancy of the liquid and the floating of the liquid storage box 53, so that the injection of the liquid is stopped, and the liquid is injected into the liquid chromatograph through the electric valve, so that the effect of quantitatively injecting the liquid can be achieved.

The above is only the preferred embodiment of the present invention, and the present invention is not limited thereto, any technical solutions recorded in the foregoing embodiments are modified, and some technical features thereof are replaced with equivalent ones, and any modification, equivalent replacement, and improvement made thereby all belong to the protection scope of the present invention.

Claims

1. The utility model provides a liquid device is sent with ration to liquid chromatograph, includes base (4), its characterized in that, base (4) external fixation has liquid reserve tank (1), base (4) external fixation has pump machine (5), base (4) external fixation has extension board (2), extension board (2) inside is provided with ration case (3), ration case (3) outside bottom surface is fixed with electric valve, inside roof (7) that is provided with of ration case (3), the inside both sides of roof (7) are provided with screw rod (61), roof (7) are connected with ration case (3) through screw rod (61), roof (7) external fixation has shift knob (73), the outage of shift knob (73) control pump machine (5) and opening of electric valve, pump machine (5) external fixation has feed liquor pipe (51), feed liquor pipe (51) are linked together with liquid reserve tank (1), pump machine (5) external fixation has drain pipe (52), drain pipe (52) are linked together with ration case (3) inside.

2. The quantitative liquid feeding device for liquid chromatograph according to claim 1, wherein a liquid tank (11) is opened on one side inside the liquid storage tank (1), observation grooves (31) are opened on both sides inside the quantitative tank (3), scales are marked on the outer surface of the observation grooves (31), fixing plates (32) are fixed on both sides of the upper end inside the quantitative tank (3), and screw holes (23) are opened inside the fixing plates (32).

3. The quantitative liquid feeding device for the liquid chromatograph according to claim 1, wherein the support plate (2) is provided with a tank groove (21) on both sides of the inside thereof, the quantitative tank (3) is positioned between the tank grooves (21), the support plate (2) is provided with a pipe hole (22) on the top surface of the inside thereof, the liquid outlet pipe (52) is positioned between the pipe holes (22), the support plate (2) is provided with a screw hole (23) on both sides of the top surface of the inside thereof, and the screw rod (61) is positioned between the pipe holes (22).

4. The quantitative liquid feeding device for the liquid chromatograph according to claim 1, wherein the top plate (7) has a pipe hole (22) formed therein, fixing rings (71) are fixed to both sides of an outer top surface of the top plate (7), fixing blocks (72) are fixed to a periphery of an outer bottom surface of the top plate (7), and a switch button (73) is fixed to an outer bottom surface of the top plate (7).

5. The device as claimed in claim 1, wherein a liquid storage box (53) is fixed outside the liquid outlet tube (52) at an end away from the pump (5), a liquid outlet hole (531) is formed in the top surface of the liquid storage box (53), the diameter of the liquid outlet hole (531) is equal to that of the fixture block (72), and the switch button (73) is made of a waterproof material.

6. The quantitative liquid feeding device for liquid chromatograph according to claim 3, wherein a knob (6) is fixed on the top surface of the exterior of the screw (61), the knob (6) is externally patterned, the screw hole (23) is internally threaded, the internal thread of the screw hole (23) is matched with the external thread of the screw (61), a circular plate (62) is fixed on the bottom surface of the exterior of the screw (61), and the circular plate (62) is positioned between the interiors of the fixing rings (71).

7. The device according to claim 5, wherein the pump (5) and the electric valve are controlled by a double switch, the reservoir (53) is located between the metering tank (3) and the inside of the top plate (7), and the reservoir (53) is made of a light material.