Auxiliary comparison device for accurately judging stability of standard substance solution

Abstract

The utility model discloses an auxiliary comparison device for accurately judging the stability of a standard substance solution, and relates to the technical field of auxiliary devices. The auxiliary comparison device for accurately judging the stability of the standard substance solution comprises a control box; and the plurality of extraction cylinders are arranged on the control box in a penetrating manner. According to the auxiliary comparison device for accurately judging the stability of the standard substance solution, a driven plate is driven to move by rotating an adjusting screw rod, so that the driven plate simultaneously pulls a plurality of pull rods to move, negative pressure is formed in an extraction cylinder, and a to-be-detected solution is simultaneously extracted into the extraction cylinder; the adjusting screw rod is rotated to drive the driven plate to push the solution to enter different control groups at the same time, the stability change of the solution in different environments is observed at the same time, the time spent on a contrast test is shortened, the change conditions of the standard solution in different environments can be clearly observed at the same time, the experiment process is clearer, and the experiment efficiency is improved. And the judgment accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to auxiliary device technical field, concretely is a kind of accurate judgment standard substance solution stability auxiliary comparison device. BACKGROUND

[0002] Standard substance solution refers to reagent solution with accurate known concentration, is often used as titrant in titration analysis, is used standard solution to draw working curve or as calculation standard in other analysis methods, since the stability of standard substance solution is influenced by temperature, humidity and other factors, to ensure the accuracy of subsequent experiment, the stability of standard substance solution is usually detected.

[0003] At present, when the temperature stability of standard substance solution is detected, standard substance solution is usually placed in different temperature environment one by one to observe its stability, so that the detection step is more cumbersome and cannot be well compared, so that the stability change rate of standard substance solution under different temperatures is not easy to judge, and the experimental precision is affected. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of accurate judgment standard substance solution stability auxiliary comparison device to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of accurate judgment standard substance solution stability auxiliary comparison device, comprising: control box;Multiple extraction barrels, through setting in control box;Multiple pull rods, slidingly set in extraction barrel interior;Driven plate, slidingly set in control box interior, the pull rod top end is fixed with driven plate bottom end;Adjusting screw rod, rotationally set in control box interior, the driven plate interior is screw set with the outer surface of adjusting screw rod.

[0006] Preferably, it further includes: connecting frame, fixedly set on the control box;Adjusting through-hole, is opened in the connecting frame, and the adjusting through-hole is located below the extraction barrel;Several movable blocks, slidingly set in adjusting through-hole interior;Limiting through-hole, is opened in the connecting frame, and the movable block side extends to the limiting through-hole interior;Fixed peg, screw set in movable block interior in limiting through-hole, the fixed peg surface and the side of connecting frame are closely combined.

[0007] Preferably, it further includes: positioning groove, is opened in the inner wall of adjusting through-hole, and the other side of movable block extends to the positioning groove interior;Connecting hose, is communicated and set on movable block, and the other end of connecting hose is connected with the bottom end of extraction barrel.

[0008] Preferably, it further includes: several extension pipes, are communicated and set in the bottom end of movable block, and the extension pipe and connecting hose are in communication state.

[0009] Preferably, further comprising: a positioning column fixedly arranged in the control box, and the inner surface of the driven plate is slidably arranged with the outer surface of the positioning column; and a sealing plug fixedly arranged on the pull rod, and the outer surface of the sealing plug is slidably arranged with the inner bottom surface of the extraction cylinder.

[0010] Preferably, further comprising: a limiting frame fixedly arranged in the control box, and when the surface of the sealing plug is in contact with the inner bottom surface of the extraction cylinder, the surface of the driven plate is in contact with the top end of the limiting frame.

[0011] Preferably, further comprising: a handle fixedly arranged on the control box; and a hanging sleeve fixedly arranged on the control box.

[0012] The utility model provides a kind of accurately judge standard substance solution stability auxiliary comparison device, with following beneficial effects:

[0013] The utility model discloses a driven plate is moved by rotating adjusting screw rod, so that the driven plate simultaneously pulls multiple pull rods to move, so that negative pressure is formed in the extraction cylinder and the solution to be detected is simultaneously extracted into the extraction cylinder, when solution stability comparison is carried out, solution is simultaneously entered into different control groups by rotating adjusting screw rod driven plate to push, the stability change of solution in different environments is observed simultaneously, the time spent in comparison test is reduced, the change of standard solution in different environments can be clearly observed, so that experiment process is more clear, and the accuracy of judgment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the schematic diagram of the internal structure of the control box of the utility model;

[0016] Figure 3 It is the exploded schematic diagram of the internal structure of the connecting frame of the utility model.

[0017] In the drawing: 1, control box;2, extraction cylinder;3, driven plate;4, adjusting screw rod;5, pull rod;6, sealing plug;7, limiting frame;8, positioning column;9, connecting frame;10, adjusting through-hole;11, movable block;12, connecting hose;13, limiting through-hole;14, positioning groove;15, fixed bolt;16, extension pipe;17, hanging sleeve;18, handle. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model.

[0019] The utility model provides technical scheme: refer to 1-3, in this embodiment, a kind of accurate determination standard substance solution stability auxiliary comparison device, it include: control box 1;Multiple extraction cylinder 2, it is through being set in control box 1;Multiple pull rod 5, it is slidably arranged in extraction cylinder 2 interior;Driven plate 3, it is slidably arranged in control box 1 interior, pull rod 5 top and driven plate 3 bottom fixed setting;Adjusting screw rod 4, it is rotationally arranged in control box 1 interior, driven plate 3 interior and adjusting screw rod 4 outer surface are threadedly arranged, rotating adjusting screw rod 4 can simultaneously move with the several pull rod 5 connected with driven plate 3, can extract equal amount of solution in each extraction cylinder 2, can ensure that standard solution amount is same in different environments in laboratory, improve experimental accuracy.

[0020] Further include: connecting frame 9, fixedly set in control box 1;Adjusting hole 10, it is through being set in connecting frame 9, and adjusting hole 10 is located in extraction cylinder 2 directly below;Several movable blocks 11, it is slidably arranged in adjusting hole 10 interior;Limiting hole 13, it is through being set in connecting frame 9, movable block 11 one side extends to limiting hole 13 interior;Fixed peg 15, it is threadedly arranged in movable block 11 interior in limiting hole 13, and the surface of fixed peg 15 is closely combined with the side of connecting frame 9, wherein, loosening fixed peg 15 can remove the restriction of connecting frame 9 to movable block 11, so that the position of movable block 11 can be flexibly changed, conveniently extract and add solution, by rotating fixed peg 15, movable block 11 can be tensioned, so that it generates greater friction with the surface of adjusting hole 10, thereby realizing fixing effect.

[0021] Further include: positioning groove 14, it is set in the inner wall of adjusting hole 10, and the other side of movable block 11 extends to the inside of positioning groove 14;Connecting hose 12, it is communicatively arranged on movable block 11, and the other end of connecting hose 12 is connected with the bottom end of extraction cylinder 2, and positioning groove 14 can realize the positioning effect of movable block 11 by cooperating with limiting hole 13, to prevent it from falling from the inside of adjusting hole 10.

[0022] Further include: several extension tubes 16, it is communicatively arranged on the bottom end of movable block 11, and extension tube 16 is in communication with connecting hose 12, can be deep into the inside of solution, conveniently sampling.

[0023] Further include: positioning column 8, fixedly set in control box 1 interior, and the outer surface of positioning column 8 is slidably arranged in driven plate 3 interior;Sealing plug 6, it is fixedly set on pull rod 5, and the outer surface of sealing plug 6 is slidably arranged in extraction cylinder 2 interior, by setting positioning column 8, driven plate 3 can be positioned, so that it is more stable in the process of moving, and is not easy to skew.

[0024] Further comprising: a limiting frame 7 fixedly arranged in the control box 1, when the surface of the sealing plug 6 is in contact with the bottom surface of the extraction cylinder 2, the surface of the driven plate 3 is in contact with the top end of the limiting frame 7, the activity range of the driven plate 3 can be limited, and the damage of the extraction cylinder 2 caused by the excessive compression of the driven plate 3 can be prevented.

[0025] Further comprising: a handle 18 fixedly arranged on the control box 1; and a hanging sleeve 17 fixedly arranged on the control box 1, the handle 18 can be conveniently used by the staff, and the hanging sleeve 17 can conveniently hang the device on the wall surface and facilitate storage.

[0026] The utility model provides a kind of auxiliary comparison device for accurately judging standard substance solution stability, specific working principle as follows:

[0027] When the stability of standard solution at different temperatures is tested, the staff heats multiple water solutions to different temperatures and keeps constant temperature, then inserts multiple insertion tubes 16 into standard solution and rotates adjusting screw rod 4, adjusting screw rod 4 drives driven plate 3 to move, so that driven plate 3 pulls multiple pull rods 5 to move, forms negative pressure in extraction cylinder 2 and simultaneously draws standard solution into extraction cylinder 2, then loosens fixed bolt 15 and slides movable block 11 to make insertion tube 16 can enter into water solution of different temperatures, after fixing movable block 11, staff rotates adjusting screw rod 4 to reset driven plate 3, so that standard solution can simultaneously enter into water solution of different temperatures, staff can clearly observe how standard solution is stable in environment of different temperatures, improve experiment efficiency.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary comparison device for accurately determining the stability of standard substance solutions, characterized in that: Include: Control box (1); A plurality of extraction barrels (2) are provided through the control box (1); A plurality of pull rods (5) are slidingly arranged inside the extraction barrel (2); The driven plate (3) is slidingly arranged inside the control box (1), and the top end of the pull rod (5) is fixedly arranged with the bottom end of the driven plate (3); The adjusting screw (4) is rotatably arranged inside the control box (1), and the inside of the driven plate (3) is threadedly arranged with the outer surface of the adjusting screw (4).

2. The device for judging the stability of a standard substance solution according to claim 1, wherein: Also includes: The connecting frame (9) is fixedly arranged on the control box (1); The adjusting through hole (10) is provided through the connecting frame (9), and the adjusting through hole (10) is located directly below the extraction barrel (2); A plurality of movable blocks (11) are slidingly arranged inside the adjusting through hole (10); The limiting through hole (13) is provided through the connecting frame (9), and one side of the movable block (11) extends into the limiting through hole (13); The fixed bolt (15) is threadedly arranged inside the movable block (11) in the limiting through hole (13), and the surface of the fixed bolt (15) is closely attached to the side surface of the connecting frame (9).

3. The device for judging the stability of a standard substance solution according to claim 2, characterized in that: Also includes: The positioning groove (14) is provided in the inner wall of the adjusting through hole (10), and the other side of the movable block (11) extends into the positioning groove (14); The connecting hose (12) is communicatively arranged on the movable block (11), and the other end of the connecting hose (12) is connected with the bottom end of the extraction barrel (2).

4. The device for judging the stability of a standard substance solution according to claim 3, wherein the device is characterized by comprising: Also includes: A plurality of extension tubes (16) are communicatively arranged at the bottom end of the movable block (11), and the extension tubes (16) are in communication with the connecting hose (12).

5. The device for judging the stability of a standard substance solution according to claim 1, wherein: Also includes: The positioning column (8) is fixedly arranged inside the control box (1), and the inside of the driven plate (3) is slidingly arranged with the outer surface of the positioning column (8); The sealing plug (6) is fixedly arranged on the pull rod (5), and the outer surface of the sealing plug (6) is slidingly arranged with the inside of the extraction barrel (2).

6. The device for judging the stability of a standard substance solution according to claim 5, wherein the device is characterized by comprising: Also includes: The limiting frame (7) is fixedly arranged inside the control box (1), and when the surface of the sealing plug (6) is in contact with the bottom surface of the extraction barrel (2), the surface of the driven plate (3) is attached to the top end of the limiting frame (7).

7. The device for judging the stability of a standard substance solution according to claim 1, wherein: Also includes: The handle (18) is fixedly arranged on the control box (1); The hanging sleeve (17) is fixedly arranged on the control box (1).

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