Total chromium water quality analyzer

Abstract

The utility model discloses a total chromium water quality analyzer in the technical field of water quality analysis, which comprises a water quality analyzer body and a placing frame assembly for placing reagent bottles, the placing frame assembly comprises a mounting frame, a fixing plate connected with the output end of a vibration exciter and a clamping assembly for fixing the reagent bottles, the clamping assembly comprises two first clamping blocks and a plurality of second clamping blocks which are separated through separation pieces, sliding parts are arranged at the bottoms of the first clamping blocks and the bottoms of the second clamping blocks respectively, and an adjusting assembly used for clamping reagent bottles is installed on the fixing plate. The problems that a pipeline on an analyzer is easily wrongly connected with a reagent bottle, different reagent bottles cannot be tidily placed in the analyzer and are time-consuming and labor-consuming to tidy, a water sample is easily subjected to partial precipitation when a detection reagent is put into the analyzer, and the detection accuracy is greatly deviated in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality analysis, in particular to a total chromium water quality analyzer. Background Art

[0002] Total chromium refers to the sum of all chromium elements in water, soil or other samples, including trivalent chromium and hexavalent chromium. Hexavalent chromium is more toxic, while trivalent chromium is relatively less toxic. The sources of total chromium mainly include natural sources and anthropogenic sources. Natural sources are mainly chromium ores in the earth's crust, and anthropogenic sources are mainly industrial production, agricultural activities and domestic sewage.

[0003] The principle of total chromium determination is as follows: the water sample to be tested is digested, and the low-valent chromium is oxidized to hexavalent chromium by the oxidant. Under acidic conditions, hexavalent chromium reacts with diphenylcarbazide to generate a purple-red compound. The absorbance is detected by the photoelectric colorimetric principle, and the concentration of total chromium is converted to this.

[0004] The existing total chromium water quality analyzer needs to connect multiple reagent bottles for holding water samples. There is no rack for placing reagent bottles in the analyzer. The pipes on the analyzer are easily connected to the reagent bottles incorrectly. Different reagent bottles cannot be neatly placed inside the analyzer, and it is time-consuming and laborious to organize them. Water samples are prone to partial precipitation when the detection reagent is put into the water sample, and the accuracy of the detection will have a large deviation.

[0005] The existing total chromium water quality analyzer has the above-mentioned problems. Therefore, those skilled in the art provide a total chromium water quality analyzer to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0006] The purpose of the utility model is to provide a total chromium water quality analyzer to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a total chromium water quality analyzer, comprising a water quality analyzer body and a display rack assembly for placing reagent bottles, the display rack assembly comprising a mounting frame, a fixing plate connected to the output end of an exciter and a clamping assembly for fixing reagent bottles, the clamping assembly comprising two clamping blocks 1 and a plurality of clamping blocks 2 separated by a separator, the bottoms of the clamping blocks 1 and 2 are respectively provided with sliding parts, and an adjustment assembly for clamping reagent bottles is installed on the fixing plate.

[0008] Preferably: the adjustment assembly includes a positioning block located at the top of the fixed plate, the positioning block is connected to a bidirectional screw, a screw groove is opened on the sliding part at the bottom of the clamping block, the bidirectional screw is screwed with two screw grooves, and one end of the bidirectional screw is connected to a turntable.

[0009] Preferably: the separation member includes a spring 1 respectively installed between clamp block 1 and clamp block 2, and between clamp block 2 and clamp block 2, a plurality of guide rods are arranged between the two clamp blocks 1, the guide rods pass through a plurality of clamp blocks 2, a plurality of sliders are slidably connected to the guide rods, and the spring 1 is located on both sides of the sliders.

[0010] Preferably: brackets are installed on both sides of the fixing plate, both ends of the guide rod are connected to the brackets, one end of the bidirectional screw passes through one side of the bracket and extends to the other side, and a locking assembly for fixing the bidirectional screw is provided between the bracket and the turntable.

[0011] Preferably, the locking assembly comprises a gear coaxial with the turntable, a fixing block is mounted on the bracket, and a spline connected by a second spring is mounted inside the fixing block.

[0012] Preferably, a V-shaped opening is provided on one side of the clamping block 1 facing each other and on both sides of the clamping block 2, and the reagent bottle is placed between two adjacent V-shaped openings.

[0013] Preferably, a rubber pad is installed on the V-shaped opening to prevent the reagent bottle from being damaged by clamping.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, by setting a display rack assembly, water samples are put into different reagent bottles, and the reagent bottles are placed on the display rack assembly. The reagent bottles can be placed in an orderly manner inside the water quality analyzer. Different reagent bottles can be neatly placed inside the analyzer, which is convenient to organize.

[0016] 2. In the utility model, the reagent bottle is clamped by clamp block 1 and clamp block 2, which are driven by a bidirectional screw to approach each other and separated by a spring 1. Clamp block 1 and clamp block 2 can be fixed according to the diameter of the reagent bottle, and each reagent bottle does not affect each other, which is convenient for connection with different detection tubes on the water quality analyzer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a left-side stereoscopic cross-sectional view of the utility model;

[0019] Figure 3 For this utility model Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 For this utility model Figure 3 The enlarged view of point B in the middle;

[0021] Figure 5For this utility model Figure 3 Enlarged view of point C in the middle.

[0022] In the figure: 1. body; 2. mounting frame; 3. exciter; 4. fixing plate; 5. clamping block 1; 6. clamping block 2; 7. sliding part; 8. positioning block; 9. bidirectional screw; 10. screw groove; 11. turntable; 12. spring 1; 13. guide rod; 14. slider; 15. bracket; 16. gear; 17. fixing block; 18. spline; 19. V-shaped opening; 20. rubber pad; 21. extension plate; 22. spring 2. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 to Figure 5 In an embodiment of the utility model, a total chromium water quality analyzer includes a water quality analyzer body 1 and a display rack assembly for placing reagent bottles, the display rack assembly includes a mounting frame 2, a fixing plate 4 connected to the output end of an exciter 3 and a clamping assembly for fixing reagent bottles, the clamping assembly includes two clamping blocks 5 and a plurality of clamping blocks 6 separated by a separator, the bottoms of the clamping blocks 5 and 6 are respectively provided with sliding portions 7, an adjusting assembly for clamping the reagent bottle is installed on the fixing plate 4, the adjusting assembly includes a positioning block 8 located at the top of the fixing plate 4, a bidirectional screw 9 is connected to the positioning block 8, a screw groove 10 is opened on the sliding portion 7 at the bottom of the clamping block 5, the bidirectional screw 9 is screwed with the two screw grooves 10, and a turntable 11 is connected to one end of the bidirectional screw 9.

[0025] The mounting frame 2 is fixed inside the main body 1, and the reagent bottle is placed on a fixed plate 4 connected by a vibrator 3. The vibrator 3 can be purchased directly from the market, so that the reagent bottle can vibrate. During the vibration, the sewage sample is partially precipitated and separated to avoid errors in the water sample analysis after stratification. The reagent bottle is placed between the clamp block 1 5 and the clamp block 2 6. Multiple reagent bottles are separated from each other and will not affect each other. The clamp block 1 5 and the clamp block 2 6 are guided by the sliding part 7. The bidirectional screw 9 connected to the positioning block 8 is rotated by the turntable 11 to drive the multiple clamp blocks 2 6 between the two clamp blocks 1 5 to shrink, so that multiple reagent bottles can be fixed on the fixed plate 4, which is convenient for fixing the reagent bottles.

[0026] In one embodiment, specifically, the separator includes a spring 12 respectively installed between the clamp block 1 5 and the clamp block 2 6, and between the clamp block 2 6 and the clamp block 2 6. A plurality of guide rods 13 are arranged between the two clamp blocks 5. The guide rods 13 penetrate through the plurality of clamp blocks 2 6. A plurality of sliders 14 are slidably connected to the guide rods 13. The spring 12 is located on both sides of the slider 14. The spring can separate the adjacent clamp blocks 1 5 and the clamp blocks 2 6, so that a plurality of reagent bottles can be arranged at equal intervals, which is convenient for the placement of the reagent bottles.

[0027] Among them, brackets 15 are respectively installed on both sides of the fixed plate 4, both ends of the guide rod 13 are connected to the brackets 15, one end of the bidirectional screw 9 passes through one side bracket 15 and extends to the other side, and a locking assembly for fixing the bidirectional screw 9 is provided between the bracket 15 and the turntable 11, and the locking assembly includes a gear 16 coaxial with the turntable 11, and a fixing block 17 is installed on the bracket 15, and a spline 18 connected by a spring 2 is installed inside the fixing block 17. By fixing the guide rod 13 by the bracket 15, the clamping block 1 5 and the clamping block 2 6 can be further guided, and the spline 18 can be inserted into the teeth of the gear 16 when the turntable 11 rotates, so that the reagent bottle will not loosen.

[0028] On the basis of the above embodiment, specifically, V-shaped openings 19 are respectively provided on the opposite side of the clamp block 1 5 and on both sides of the clamp block 2 6, and the reagent bottle is placed between two adjacent V-shaped openings 19. Rubber pads 20 for preventing the reagent bottle from being damaged by clamping are installed on the V-shaped openings 19. The V-shaped openings 19 can adapt to reagent bottles of different diameters, and the rubber pads 20 can prevent the clamp block 1 5 and the clamp block 2 6 from squeezing the reagent bottle.

[0029] When analyzing the total chromium wastewater, first take a certain amount of water sample, divide it into several equal parts and put it into the reagent bottle, and take several comparison water samples, place these water samples between the V-shaped opening 19 between the clamp block 1 5 and the clamp block 2 6, and after placement, put the different catheters in the analyzer into different reagent bottles, then rotate the turntable 11, and the turntable 11 drives the two clamp blocks 1 5 to approach each other through the bidirectional screw 9. At this time, the spring 12 will shrink until multiple reagent bottles are fixed. After the fixation is completed, the water sample can be tested and analyzed. In this process, the reagent bottle on the fixed plate 4 can be driven to vibrate by the vibrator 3 to avoid the stratification of the water sample affecting the vertical analysis. After the analysis is completed, push the tooth 18 to disengage it from the gear 16, and rotate the bidirectional screw 9 in the opposite direction. At this time, the clamp block 1 5 and the clamp block 2 6 will be separated under the action of the spring 12, and then the reagent bottle can be taken out.

[0030] In one embodiment, specifically, an extension plate 21 for preventing the reagent bottle from falling is provided at the bottom of the clamp block 1 5 and the clamp block 2 6 and below the V-shaped opening 19. The extension plate 21 is located at the bottom of the clamp block 1 5 and the clamp block 2 6, which can prevent the reagent bottle from falling to the position where the sliding part 7 is located, thereby avoiding damage to the reagent bottle.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A total chromium water quality analyzer, characterized in that: The invention comprises a water quality analyzer body (1) and a shelf assembly for placing reagent bottles, the shelf assembly comprising a mounting frame (2), a fixing plate (4) connected to the output end of an exciter (3), and a clamping assembly for fixing the reagent bottles, the clamping assembly comprising two clamping blocks (5) and a plurality of clamping blocks (6) separated by a separator, and the bottoms of the clamping blocks (5) and (6) are respectively provided with sliding parts (7); An adjustment component for clamping the reagent bottle is installed on the fixing plate (4).

2. A total chromium water quality analyzer according to claim 1, characterized in that: The adjustment assembly comprises a positioning block (8) located at the top of the fixed plate (4), a bidirectional screw (9) being connected to the positioning block (8), a screw groove (10) being provided on the sliding portion (7) at the bottom of the clamping block (5), the bidirectional screw (9) being screwed to the two screw grooves (10), and a rotating disk (11) being connected to one end of the bidirectional screw (9).

3. A total chromium water quality analyzer according to claim 2, characterized in that: The separation member comprises a spring one (12) respectively installed between the clamp block one (5) and the clamp block two (6), and between the clamp block two (6) and the clamp block two (6); a plurality of guide rods (13) are arranged between the two clamp blocks one (5); the guide rods (13) penetrate through the plurality of clamp blocks two (6); a plurality of sliders (14) are slidably connected to the guide rods (13); and the spring one (12) is located on both sides of the slider (14).

4. A total chromium water quality analyzer according to claim 3, characterized in that: Brackets (15) are respectively installed on both sides of the fixing plate (4), both ends of the guide rod (13) are connected to the brackets (15), one end of the bidirectional screw (9) passes through one side of the bracket (15) and extends to the other side, and a locking component for fixing the bidirectional screw (9) is provided between the bracket (15) and the rotating disk (11).

5. A total chromium water quality analyzer according to claim 4, characterized in that: The locking assembly comprises a gear (16) coaxial with the rotating disk (11), a fixing block (17) is mounted on the bracket (15), and a spline (18) connected by a second spring (22) is mounted inside the fixing block (17).

6. A total chromium water quality analyzer according to claim 5, characterized in that: The facing side of the clamp block 1 (5) and the two sides of the clamp block 2 (6) are respectively provided with V-shaped openings (19), and the reagent bottle is placed between two adjacent V-shaped openings (19).

7. A total chromium water quality analyzer according to claim 6, characterized in that: The V-shaped opening (19) is provided with a rubber pad (20) for preventing the reagent bottle from being damaged by clamping.

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