CN207937351U - A kind of detection ultraviolet specrophotometer - Google Patents

Abstract

The utility model discloses a kind of detection ultraviolet specrophotometers, including placement plate and cuvette, two pieces of positioning plates being mutually parallel vertically are equipped in placement plate, the upper surface of placement plate is equipped with multiple putting grooves along the direction parallel with positioning plate between two pieces of positioning plates, on each putting groove mobile fixed plate is respectively equipped with by the two sides vertical with positioning plate, multiple adjusting through-holes are offered on every piece of positioning plate, are adjusted and are equipped with fastening screw rod in through-hole；The lower section of placement plate is equipped with installation support plate, and elevating mechanism is equipped between placement plate and installation support plate.The ultraviolet specrophotometer of the utility model, by the way that detent mechanism is arranged, stability when cuvette is put can be greatly improved, it avoids shifting and move, to improve the accuracy of measurement, while putting groove can be removed out of photometric light source chamber, consequently facilitating the placement of cuvette, situations such as being put without stretching into light source chamber, avoiding overturning in placement process.

Description

A kind of detection ultraviolet specrophotometer

Technical field

The utility model is related to a kind of ultraviolet specrophotometers, and in particular to a kind of detection ultraviolet specrophotometer.

Background technology

Ultraviolet-uisible spectrophotometer is the effect using the molecule of substance or the light absorption of a certain wave-length coverage of ion pair, Qualitative analysis, quantitative analysis and structural analysis are carried out together to substance.Spectrophotometer includes sample cell and light source chamber, sample Multiple sample cells are equipped in pond, sample cell is for placing cuvette.Cuvette (also known as absorption cell or sample cell) is luminosity room Critical component, analyze test when, usually simultaneously fill reference solution and sample solution respectively using two ratio Color ware tests them in (single beam or collimated light beam instrument in this way, dual-beam instrument while testing), compares test respectively Absorbance (or transmittance, typically compare absorbance).Theoretically, as long as the width of cuvette is certain, as long as putting Enter in light path, absorbance value should be identical, but since the focus of light is to make cuvette after mobile a fixed position The focus that position is not located in light is incited somebody to action, therefore absorbance but has differences.Therefore cuvette is in same fixed position, is examined to reducing It is critically important to survey resultant error.

And the size of the sample cell design of existing ultraviolet-uisible spectrophotometer is significantly greater than cuvette, after leading to placement It is easy all around to shift, keeps absorption light value inaccurate, since ultraviolet-uisible spectrophotometer is a kind of very accurate instrument, The slight error in any point can all be such that analysis result occurs as far apart as heaven and earth, cause error in judgement, and the placement of cuvette is not It is convenient, situations such as being easy to overturn when being put into light source chamber, can also there be damage to instrument itself.

Utility model content

Technical problem to be solved in the utility model is that the sample cell of existing ultraviolet-uisible spectrophotometer designs Size is significantly greater than cuvette, causes to be easy all around to shift after placing, keeps absorption light value inaccurate, due to UV, visible light point Light photometer is a kind of very accurate instrument, and the slight error in any point can all be such that analysis result occurs as far apart as heaven and earth, make At error in judgement, and the placement of cuvette is inconvenient, situations such as being easy to overturn when being put into light source chamber, to instrument sheet Body can also have damage, and it is an object of the present invention to provide a kind of detection ultraviolet specrophotometer can be significantly by the way that detent mechanism is arranged The stability improved when cuvette is put, avoid shifting and move, to improve the accuracy of measurement, while can Putting groove is removed out of photometric light source chamber, consequently facilitating the placement of cuvette, is put without stretching into light source chamber, Situations such as avoiding overturning in placement process.

The utility model is achieved through the following technical solutions：

A kind of detection ultraviolet specrophotometer, including placement plate and cuvette are vertically equipped with two pieces in placement plate mutually Parallel positioning plate, the upper surface of placement plate is equipped with multiple storings along the direction parallel with positioning plate between two pieces of positioning plates Slot, is respectively equipped with mobile fixed plate on each putting groove by the two sides vertical with positioning plate, the lower end of mobile fixed plate with set The upper surface vertical sliding motion connection of plate is put, two pieces of mobile fixed plates of each putting groove both sides can be along parallel with positioning plate Direction slidably reciprocates towards putting groove direction, and multiple adjusting through-holes are offered on every piece of positioning plate, it is each adjust through-hole with The position of putting groove corresponds, and adjusts and is equipped with fastening screw rod in through-hole；The lower section of placement plate is equipped with installation support plate, placement plate Elevating mechanism is equipped between installation support plate, elevating mechanism can adjust the residing height of placement plate.

The ultraviolet specrophotometer of the utility model can greatly improve cuvette storing by the way that detent mechanism is arranged When stability, avoid shifting and move, to improve the accuracy of measurement, while can be by putting groove from photometer Light source chamber in remove, consequently facilitating the placement of cuvette, is put without stretching into light source chamber, avoid in placement process Situations such as overturning.When needing to place cuvette, the structures such as putting groove are all provided in light source chamber under normal circumstances, because This open top for driving placement plate to move up to light source chamber by elevating mechanism first goes out, and then will need to compare multiple The bottom of cuvette is individually positioned among each putting groove, and two pieces of positioning plates are located at the both sides of cuvette, is fastened by tightening Bolt so that the end of clamping bolt is bonded with the side wall of cuvette, makes each putting groove two by the mobile fixed plate of sliding The mobile fixed plate of side, which is moved toward one another to the side wall with cuvette, contacts fitting, so as to the entire lower half portion of contrastive colours ware Good fixation is carried out, compared to for existing individual putting groove, stable fixed performance is more preferable, occurs after being not easily susceptible to collision It translates into, while can quickly realize the placement for carrying out cuvette outside light source chamber, using more conveniently, safely, Er Qiewu It after need to taking out putting groove completely, then is installed in light source chamber, operation is more quick, can effectively improve cuvette and measure In the process and peace turn, the stability in placement process, improve measurement accuracy.

It is slidably connected between positioning plate and the upper surface of placement plate, positioning plate can come along the direction vertical with positioning plate Sliding is returned, and is equipped with fixed card buckle structure between positioning plate and placement plate so that the putting groove of same placement plate disclosure satisfy that Stablizing for sizes cuvette is placed；What wherein the size of putting groove can be arranged is relatively larger, when cuvette size compared with Hour, it can be by relative position or the fastening bolt between two pieces of positioning plates of adjusting so that the progress of contrastive colours ware is good solid It is fixed, therefore when measuring without sticking to the specific size of cuvette, the two kinds of liquid that need to only compare all use identical size Cuvette measure, size and putting groove size can facilitate other rulers in this way without matching one by one Very little cuvette measures, and the positioning plate for adjusting good position can be fixed in fixed card buckle structure, avoid its sliding.

The mobile fixed plate has stretching structure, the adjustable in length of mobile fixed plate in the horizontal direction, Neng Gougen According to the spacing between two pieces of positioning plates to adjust the width of mobile fixed plate in real time.

The bottom surface of putting groove is equipped with screens convex block, and the bottom surface of cuvette is recessed equipped with screens corresponding with screens convex block Slot, when cuvette is placed in putting groove, screens convex block can be embedded in retaining groove, further increase the stabilization of cuvette Property, make it be not susceptible to overturn during mobile fixed plate or positioning plate adjusting position.

Cover board is removably connected with above positioning plate, cover board is covered in the top of putting groove, without using when, Cover board is mounted on above positioning plate, avoids impurity from falling among putting groove, it is difficult to clear up.

The utility model compared with prior art, has the following advantages and advantages：

1, a kind of detection ultraviolet specrophotometer of the utility model can be greatly improved by the way that detent mechanism is arranged Stability when cuvette is put, avoids shifting and move, to improve the accuracy of measurement, while can will put Slot is removed out of photometric light source chamber, consequently facilitating the placement of cuvette, is put without stretching into light source chamber, is avoided Situations such as being overturned in placement process；

2, a kind of detection ultraviolet specrophotometer of the utility model, the company of sliding between positioning plate and the upper surface of placement plate It connects, positioning plate can slidably reciprocate along the direction vertical with positioning plate, and fixing card is equipped between positioning plate and placement plate Buckle structure so that the putting groove of same placement plate disclosure satisfy that stablizing for sizes cuvette is placed；The wherein ruler of putting groove It is very little can be arranged it is relatively larger, when cuvette size is smaller, can pass through adjust two pieces of positioning plates between opposite position It sets or fastening bolt is to which contrastive colours ware carries out good fixation, therefore when measuring without sticking to the specific ruler of cuvette Very little, the two kinds of liquid that need to only compare all are measured using the cuvette of identical size, size and putting groove ruler Very little size can facilitate the cuvette of other sizes to measure, fixed card buckle structure can exchange in this way without matching one by one The positioning plate of section good position is fixed, and avoids its sliding；

3, a kind of detection ultraviolet specrophotometer of the utility model, the mobile fixed plate has stretching structure, mobile The adjustable in length of fixed plate in the horizontal direction can be moved according to the spacing between two pieces of positioning plates to adjust in real time The bottom surface of the width of fixed plate, putting groove is equipped with screens convex block, and the bottom surface of cuvette is equipped with corresponding with screens convex block Retaining groove, when cuvette is placed in putting groove, screens convex block can be embedded in retaining groove, further increase cuvette Stability, make it be not susceptible to overturn during mobile fixed plate or positioning plate adjusting position.

Description of the drawings

Attached drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings：

FIG. 1 is a schematic structural view of the utility model.

Label and corresponding parts title in attached drawing：

1- placement plates, 2- positioning plates, 4- move fixed plate, and 5- adjusts through-hole, and 6- installs support plate.

Specific implementation mode

To make the purpose of this utility model, technical solution and advantage be more clearly understood, with reference to embodiment and attached drawing, The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this Utility model is not intended to limit the scope of the present invention.

Embodiment

As shown in Figure 1, a kind of detection ultraviolet specrophotometer of the utility model, including placement plate 1 and cuvette, it puts Two pieces of positioning plates 2 being mutually parallel vertically are equipped on plate 1, between two pieces of positioning plates 2 upper surface of placement plate 1 along with positioning plate 2 parallel directions are equipped with multiple putting grooves, are respectively equipped with by the two sides vertical with positioning plate 2 on each putting groove mobile solid The lower end of fixed board 4, mobile fixed plate 4 is connect with the upper surface vertical sliding motion of placement plate 1, two pieces of movements of each putting groove both sides Fixed plate 4 can slidably reciprocate along the direction parallel with positioning plate 2 towards putting groove direction, be opened on every piece of positioning plate 2 It is each to adjust position one-to-one correspondence of the through-hole 5 with putting groove equipped with multiple adjusting through-holes 5, it is equipped in adjusting through-hole 5 and fastens spiral shell Bar；The lower section of placement plate 1 is equipped with installation support plate 6, and elevating mechanism, elevating mechanism are equipped between placement plate 1 and installation support plate 6 The residing height of placement plate 1 can be adjusted.

The ultraviolet specrophotometer of the utility model can greatly improve cuvette storing by the way that detent mechanism is arranged When stability, avoid shifting and move, to improve the accuracy of measurement, while can be by putting groove from photometer Light source chamber in remove, consequently facilitating the placement of cuvette, is put without stretching into light source chamber, avoid in placement process Situations such as overturning.When needing to place cuvette, the structures such as putting groove are all provided in light source chamber under normal circumstances, because This open top for driving placement plate to move up to light source chamber by elevating mechanism first goes out, and then will need to compare multiple The bottom of cuvette is individually positioned among each putting groove, and two pieces of positioning plates are located at the both sides of cuvette, is fastened by tightening Bolt so that the end of clamping bolt is bonded with the side wall of cuvette, makes each putting groove two by the mobile fixed plate of sliding The mobile fixed plate of side, which is moved toward one another to the side wall with cuvette, contacts fitting, so as to the entire lower half portion of contrastive colours ware Good fixation is carried out, compared to for existing individual putting groove, stable fixed performance is more preferable, occurs after being not easily susceptible to collision It translates into, while can quickly realize the placement for carrying out cuvette outside light source chamber, using more conveniently, safely, Er Qiewu It after need to taking out putting groove completely, then is installed in light source chamber, operation is more quick, can effectively improve cuvette and measure In the process and peace turn, the stability in placement process, improve measurement accuracy.

Preferably, it is slidably connected between positioning plate and the upper surface of placement plate, positioning plate can be along vertical with positioning plate Direction slidably reciprocate, and between positioning plate and placement plate be equipped with fixed card buckle structure so that the putting groove of same placement plate It disclosure satisfy that stablizing for sizes cuvette is placed；What wherein the size of putting groove can be arranged is relatively larger, works as colorimetric It, can be by relative position or the fastening bolt between two pieces of positioning plates of adjusting so that contrastive colours ware carries out when ware size is smaller Good fixation, therefore when measuring without sticking to the specific size of cuvette, the two kinds of liquid that need to only compare all use The cuvette of identical size measures, and size is not necessarily to match one by one with putting groove size, in this way can be square Just the cuvette of other sizes measures, and the positioning plate for adjusting good position can be fixed in fixed card buckle structure, avoid It is slided.

Preferably, the mobile fixed plate has stretching structure, moves the adjustable in length of fixed plate in the horizontal direction, The width of mobile fixed plate can be adjusted in real time according to the spacing between two pieces of positioning plates.

Preferably, the bottom surface of putting groove is equipped with screens convex block, and the bottom surface of cuvette is equipped with corresponding with screens convex block Retaining groove, when cuvette is placed in putting groove, screens convex block can be embedded in retaining groove, further increase colorimetric The stability of ware makes it be not susceptible to overturn during mobile fixed plate or positioning plate adjusting position.

Preferably, cover board is removably connected with above positioning plate, cover board is covered in the top of putting groove, without using When, cover board is mounted on above positioning plate, avoids impurity from falling among putting groove, it is difficult to clear up.

Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit Determine the scope of protection of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims (5)

1. a kind of detection ultraviolet specrophotometer, which is characterized in that including placement plate (1) and cuvette, hang down in placement plate (1) Directly be equipped with two pieces of positioning plates (2) being mutually parallel, between two pieces of positioning plates (2) upper surface of placement plate (1) along with positioning plate (2) parallel direction is equipped with multiple putting grooves, is respectively equipped with shifting by the two sides vertical with positioning plate (2) on each putting groove The lower end of dynamic fixed plate (4), mobile fixed plate (4) is connect with the upper surface vertical sliding motion of placement plate (1), each putting groove both sides Two pieces of mobile fixed plates (4) can slidably reciprocate towards putting groove direction along the direction parallel with positioning plate (2), often Multiple adjusting through-holes (5) are offered on block positioning plate (2), each adjust through-hole (5) and the position of putting groove corresponds, adjust It is equipped in through-hole (5) and fastens screw rod；The lower section of placement plate (1) is equipped with installation support plate (6), placement plate (1) and installation support plate (6) elevating mechanism is equipped between, elevating mechanism can adjust the residing height of placement plate (1).

2. a kind of detection ultraviolet specrophotometer according to claim 1, which is characterized in that positioning plate (2) and storing It being slidably connected between the upper surface of plate (1), positioning plate (2) can slidably reciprocate along the direction vertical with positioning plate (2), and Fixed card buckle structure is equipped between positioning plate (2) and placement plate (1).

3. a kind of detection ultraviolet specrophotometer according to claim 1, which is characterized in that the mobile fixed plate (4) there is stretching structure, the adjustable in length of mobile fixed plate (4) in the horizontal direction.

4. a kind of detection ultraviolet specrophotometer according to claim 1, which is characterized in that set on the bottom surface of putting groove There are screens convex block, the bottom surface of cuvette to be equipped with retaining groove corresponding with screens convex block.

5. a kind of detection ultraviolet specrophotometer according to claim 1, which is characterized in that the top of positioning plate (2) It is removably connected with cover board, cover board is covered in the top of putting groove.