CN210037595U

CN210037595U - Ultraviolet spectrophotometer

Info

Publication number: CN210037595U
Application number: CN201920204478.4U
Authority: CN
Inventors: 潘淼
Original assignee: Zhejiang Huake Testing Technology Co Ltd
Current assignee: Zhejiang Huake Testing Technology Co Ltd
Priority date: 2019-02-18
Filing date: 2019-02-18
Publication date: 2020-02-07
Anticipated expiration: 2029-02-18

Abstract

The utility model discloses an ultraviolet spectrophotometer belongs to detecting instrument technical field, including carrying model, sample holder and cell, be provided with the sample cell that is used for holding the cell on the sample holder, be provided with the light trap on the lateral wall of sample cell, the upper portion of carrying the model is provided with the appearance groove that carries that is used for holding the sample holder, sample holder and year appearance groove between be provided with fixture, fixture is including setting up at the grip slipper of carrying appearance tank bottom, seting up the centre gripping groove on the grip slipper and setting up the grip block in the cell bottom, the grip block is used for pegging graft in the inside in centre gripping groove. The utility model relates to a rationally, simple structure through the connected mode that can dismantle the change, fixes the sample frame, and the user of being convenient for uses and maintains.

Description

Ultraviolet spectrophotometer

Technical Field

The utility model relates to a detecting instrument technical field especially relates to an ultraviolet spectrophotometer.

Background

The ultraviolet-visible spectrophotometer performs qualitative analysis, quantitative analysis and structural analysis on a substance by utilizing the absorption effect of molecules or ions of the substance on light in a certain wavelength range. The spectrophotometer includes sample cell and light source room, is equipped with a plurality of sample cell in the sample cell, and the sample cell is used for placing the cell. The cuvette (also called absorption cell or sample cell) is a key component of the photometer, and during analysis and test, two cuvettes containing reference solution and sample solution to be tested are generally used simultaneously to perform separate tests (single beam or quasi-beam instrument, so that two-beam instrument performs simultaneous tests), and the absorbance (or transmittance, generally the comparative absorbance) of the test is compared.

The design of the sample tank and the sample rack of the existing ultraviolet-visible spectrophotometer is fixed, the sample rack cannot be detached from the sample tank inconveniently, the sample rack is damaged or polluted and then replaced more complexly, and the damaged or polluted sample rack can influence the detection of the equipment on the sample, thereby influencing the precision of the equipment and seriously influencing the use of users.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art, and the ultraviolet spectrophotometer who provides one kind conveniently maintains the change to the sample frame.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an ultraviolet spectrophotometer, is including carrying model, sample frame and cell, be provided with the sample cell that is used for holding the cell on the sample frame, be provided with the light trap on the lateral wall of sample cell, the upper portion that carries the model is provided with the appearance groove of carrying that is used for holding the sample frame, sample frame and carry and be provided with fixture between the appearance groove, fixture is including setting up at the grip slipper of carrying appearance tank bottom, seting up the grip slipper on the grip slipper and setting up the grip block in the cell bottom, the grip block is used for pegging graft in the inside of grip slipper.

Preferably, the method comprises the following steps: the clamping mechanism further comprises a limiting structure used for fixing the clamping block and the clamping groove, and the limiting structure comprises a protruding portion arranged on the side wall of the clamping block and a recessed portion arranged on the side wall of the clamping groove.

Preferably, the method comprises the following steps: the width of centre gripping piece equals with the width of centre gripping groove, the width of bellying is greater than the width of centre gripping groove, and equals with the width of depressed part.

Preferably, the method comprises the following steps: the convex part and the concave part are circular arcs matched with each other.

Preferably, the method comprises the following steps: the bottom of the clamping block is provided with a first arc part, and the opening of the clamping groove is provided with a second arc part.

Preferably, the method comprises the following steps: the clamping mechanisms are provided with two groups, and the two groups of clamping mechanisms are respectively arranged on two sides of the sample loading groove.

Preferably, the method comprises the following steps: the sample frame comprises a plurality of sample frame assemblies and a splicing mechanism for splicing the sample frame assemblies, wherein the splicing mechanism comprises a splicing sliding groove arranged on the sample frame assemblies and a splicing sliding rod used for being connected with the splicing sliding groove in a sliding mode, and each sample frame assembly is assembled on the splicing sliding rod through the splicing sliding groove.

Preferably, the method comprises the following steps: the cross section of concatenation spout and concatenation slide bar is for the trapezoidal of falling of mutually supporting, the concatenation slide bar is provided with two at least, and each the concatenation slide bar parallel is parallel to each other, through connecting plate fixed connection between the concatenation slide bar.

Preferably, the method comprises the following steps: the bottom of cell is placed in the sample groove, be provided with positioning mechanism between cell and the sample groove, positioning mechanism is including the locating piece that is fixed in the cell bottom and set up the constant head tank in sample groove bottom and mutually support with the locating piece.

Preferably, the method comprises the following steps: the locating piece and constant head tank all are "ten" font, the locating piece is including crossing locating piece one and the locating piece two that sets up, the constant head tank is including crossing locating slot one and the constant head tank two that sets up, the length of constant head tank one is greater than the length of constant head tank two, the length of locating piece one is less than the length of constant head tank one, and is greater than the length of constant head tank two, the length of locating piece two is less than the length of constant head tank two.

Compared with the prior art, the utility model has the advantages of:

carry through detachably to be connected through fixture between year model and the sample frame for the sample frame can be dismantled from carrying model upper portion, and when the sample frame received damage and need changing or inside when receiving the pollution needs cleaning, can take off the sample frame from carrying the model, cleans or changes. Through carrying the appearance groove in the upper portion setting of year model, carry the width size phase-match of the width size in appearance groove and sample frame for sample frame can stable installation carry out the centre gripping through sample frame and the fixture between the appearance groove and fix, makes the grip block insert the inside in grip block groove during the installation, and the grip block centre gripping is spacing with the grip block in the grip block groove.

Drawings

Fig. 1 is a schematic structural diagram of a sample holder of an ultraviolet spectrophotometer according to the present invention.

Fig. 2 is a schematic structural diagram of a sample holder of an ultraviolet spectrophotometer according to the present invention.

Fig. 3 is a cross-sectional view of a sample holder of an ultraviolet spectrophotometer according to the present invention.

Fig. 4 is a second cross-sectional view of a sample holder of an ultraviolet spectrophotometer according to the present invention.

Fig. 5 is a schematic structural diagram of a cuvette of an ultraviolet spectrophotometer according to the present invention.

Fig. 6 is a schematic structural diagram of a sample carrier plate of an ultraviolet spectrophotometer according to the present invention.

Fig. 7 is an enlarged view of fig. 2 at a.

Fig. 8 is a schematic structural diagram of the splicing mechanism of the ultraviolet spectrophotometer of the present invention.

Fig. 9 is a schematic structural diagram of a clamping mechanism of an ultraviolet spectrophotometer according to the present invention.

Fig. 10 is a schematic structural diagram of an ultraviolet spectrophotometer according to the present invention.

In the figure: 1. carrying a sample plate; 2. a sample rack assembly; 3. a sample tank; 4. a light-transmitting hole; 5. a cuvette; 6. a light-transmitting surface; 7. frosted glass surface; 8. positioning blocks; 9. a first positioning block; 10. a second positioning block; 11. positioning a groove; 12. Positioning a first groove; 13. positioning a second groove; 14. a clamping seat; 15. a clamping block; 16. a clamping groove; 17. a boss portion; 18. a first arc part; 19. a recessed portion; 20. a second arc part; 21. a sample loading groove; 22. splicing the sliding chutes; 23. Splicing the sliding rods; 24. a connecting plate; 25. and (4) a sample holder.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-9, an ultraviolet spectrophotometer includes sample carrying plate 1, sample holder 25 and cell 5, be provided with the sample groove 3 that is used for holding cell 5 on the sample holder 25, be provided with light trap 4 on the lateral wall of sample groove 3, the upper portion of carrying sample plate 1 is provided with the sample carrying groove 21 that is used for holding sample holder 25, be provided with fixture between sample holder 25 and the sample carrying groove 21, fixture is including setting up at the grip slipper 14 of carrying sample groove 21 bottom, seting up the grip slipper 16 on grip slipper 14 and setting up the grip block 15 in cell 5 bottom, grip block 15 is used for pegging graft in the inside of grip slipper 16. The other parts of the ultraviolet spectrophotometer are the same as those of the existing ultraviolet spectrophotometer, and are not described in detail herein.

A sample cavity for loading and taking a sample is arranged on the cuvette 5 of the ultraviolet spectrophotometer, during operation, the cuvette 5 is cleaned, and after cleaning is completed, a sample solution is loaded into the cuvette 5. The cell 5 includes that two are relative to set up light-transmitting surface 6 and frosted glass face 7, and when the operation, the finger grips frosted glass face 7, places light-transmitting surface 6 towards one side of light-transmitting hole 4, lets light can pass light-transmitting hole 4 and cell 5 and tests.

Through adopting above-mentioned technical scheme, carry model 1 and sample frame 25 to carry out detachably through fixture and connect for sample frame 25 can be dismantled from carrying model 1 upper portion, and when sample frame 25 received the damage and need changing or inside when receiving pollution needs cleaning, can take off sample frame 25 from carrying model 1, clean or change. Through carrying the appearance groove 21 at the upper portion of year model 1 setting, carry the width dimension of appearance groove 21 and the width dimension phase-match of sample frame 25 for sample frame 25 can stable installation carry out the centre gripping through the fixture between sample frame 25 and the year appearance groove 21 and fix in the inside of carrying appearance groove 21, makes the inside that the grip block 15 inserted the grip block 16 during the installation, and the grip block 15 centre gripping is spacing with the grip block 16.

The clamping mechanism further comprises a limiting structure used for fixing the clamping block 15 and the clamping groove 16, and the limiting structure comprises a convex part 17 arranged on the side wall of the clamping block 15 and a concave part 19 arranged on the side wall of the clamping groove 16.

Through adopting above-mentioned technical scheme, can carry on spacingly through limit structure between grip block 15 and the centre gripping groove 16, through spacing fixed between bellying 17 and the depressed part 19, can avoid grip block 15 to extract from grip groove 16 easily.

The width of the clamping block 15 is equal to that of the clamping groove 16, and the width of the convex part 17 is larger than that of the clamping groove 16 and equal to that of the concave part 19. The convex part 17 and the concave part 19 are circular arcs matched with each other.

Through adopting above-mentioned technical scheme, because the width phase-match of grip block 15 and centre gripping groove 16, grip block 15 can insert the inside of centre gripping groove 16, because the width of bellying 17 is great, the bellying 17 of the in-process circular arc shape that grip block 15 inserted grip groove 16 can be opened centre gripping groove 16 to both sides top for the width of centre gripping groove 16 increases gradually, it is spacing to cooperate until bellying 17 gets into the inside of depressed part 19, thereby fix grip block 15.

The bottom of the clamping block 15 is provided with a first arc part 18, and the opening of the clamping groove 16 is provided with a second arc part 20.

Through adopting above-mentioned technical scheme, through adopting arc portion one 18 and arc portion two 20, can lead when inserting centre gripping groove 16 to grip block 15 for grip block 15 can smoothly get into the inside of centre gripping groove 16, and the operating personnel of being convenient for assembles sample frame 25.

The clamping mechanisms are at least provided with two groups, and the two groups of clamping mechanisms are respectively arranged on two sides of the sample loading groove 21.

Through adopting above-mentioned technical scheme, two sets of fixture can carry out spacing centre gripping to sample frame 25 simultaneously, have further improved sample frame 25's stability.

The sample rack 25 comprises a plurality of sample rack assemblies 2 and a splicing mechanism for splicing the sample rack assemblies 2, the splicing mechanism comprises a splicing sliding groove 22 arranged on the sample rack assemblies 2 and a splicing sliding rod 23 used for being connected with the splicing sliding groove 22 in a sliding mode, and the sample rack assemblies 2 are assembled on the splicing sliding rod 23 through the splicing sliding groove 22.

By adopting the technical scheme, the sample rack assemblies 2 which are independent from each other are spliced to form the sample rack 25, and when one sample rack assembly 2 is damaged or polluted and needs to be replaced, the sample rack assembly 2 can be conveniently replaced; the sample rack assemblies 2 are sequentially connected onto the splicing sliding groove 22 in a sliding mode, and the sample racks 25 are assembled by the sample rack assemblies 2 to form a whole, so that the sample rack assemblies 2 are convenient to install.

The cross section of concatenation spout 22 and concatenation slide bar 23 is for the trapezoidal of falling of mutually supporting, concatenation slide bar 23 is provided with two, and each concatenation slide bar 23 is parallel to each other, through connecting plate 24 fixed connection between the concatenation slide bar 23.

Through adopting above-mentioned technical scheme, the trapezoidal concatenation spout 22 of falling and concatenation slide bar 23 mutually support, and concatenation slide bar 23 inserts concatenation spout 22 back, and two inclined planes can carry on spacingly to concatenation slide bar 23 for stably fix in the inside of concatenation spout 22.

The bottom of cell 5 is placed in sample groove 3, be provided with positioning mechanism between cell 5 and the sample groove 3, positioning mechanism is including being fixed in the locating piece 8 of cell 5 bottom and seting up in sample groove 3 bottoms and with locating piece 8 constant head tank 11 of mutually supporting.

Through adopting above-mentioned technical scheme, locating piece 8 and constant head tank 11 can carry out good location to the cell 5 of 3 inside in sample groove for cell 5 can be stably in light printing opacity departments, reduces rocking of cell 5, has improved the stability that detects.

Locating piece 8 and constant head tank 11 all are "ten" font, locating piece 8 is including crossing locating piece one 9 and the two 10 of locating piece that set up, constant head tank 11 is including crossing constant head tank one 12 and the two 13 of constant head tank that set up, the length of constant head tank one 12 is greater than the length of constant head tank two 13, the length of locating piece one 9 is less than the length of constant head tank one 12, and is greater than the length of constant head tank two 13, the length of locating piece two 10 is less than the length of constant head tank two 13.

Through adopting above-mentioned technical scheme, when sample groove 3 was put into to cuvette 5, the inside of locating piece one 9 insertion constant head tank one 12 on the locating piece 8, the inside of locating piece two 10 insertion constant head tank two 13 on the locating piece 8, because the length of locating piece one 9 is less than the length of constant head tank one 12, and be greater than the length of constant head tank two 13, so locating piece one 9 can only insert the inside of constant head tank one 12, can't insert the inside of constant head tank two 13, when locating piece one 9 is in the position on constant head tank two 13, the bottom of cuvette 5 can't contact with the bottom of sample groove 3, cuvette 5 is jack-up, play the effect of preventing slow-witted, consequently when installing cuvette 5, the condition that ground glass face 7 is in the light path can not appear.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An ultraviolet spectrophotometer, comprising: including carrying model (1), sample frame (25) and cell (5), be provided with sample groove (3) that are used for holding cell (5) on sample frame (25), be provided with light trap (4) on the lateral wall of sample groove (3), the upper portion that carries model (1) is provided with carries appearance groove (21) that is used for holding sample frame (25), sample frame (25) and carry and be provided with fixture between appearance groove (21), fixture including setting up at the grip slipper (14) that carries appearance groove (21) bottom, set up grip slipper (16) on grip slipper (14) and set up grip block (15) in cell (5) bottom, grip slipper (15) are used for pegging graft in the inside of grip slipper (16).

2. An ultraviolet spectrophotometer as set forth in claim 1, wherein: the clamping mechanism further comprises a limiting structure used for fixing the clamping block (15) and the clamping groove (16), and the limiting structure comprises a protruding portion (17) arranged on the side wall of the clamping block (15) and a recessed portion (19) arranged on the side wall of the clamping groove (16).

3. An ultraviolet spectrophotometer as set forth in claim 2, wherein: the width of the clamping block (15) is equal to that of the clamping groove (16), and the width of the protruding portion (17) is larger than that of the clamping groove (16) and equal to that of the recessed portion (19).

4. An ultraviolet spectrophotometer as set forth in claim 2, wherein: the convex part (17) and the concave part (19) are circular arcs matched with each other.

5. An ultraviolet spectrophotometer as set forth in claim 2, wherein: the bottom of the clamping block (15) is provided with a first arc part (18), and the opening of the clamping groove (16) is provided with a second arc part (20).

6. An ultraviolet spectrophotometer as set forth in claim 2, wherein: the clamping mechanisms are provided with two groups, and the two groups of clamping mechanisms are respectively arranged on two sides of the sample carrying groove (21).

7. An ultraviolet spectrophotometer as set forth in claim 2, wherein: sample frame (25) include a plurality of sample frame subassemblies (2) and be used for the concatenation sample frame subassembly splicing mechanism (2), splicing mechanism is including setting up concatenation spout (22) on sample frame subassembly (2) and be used for with concatenation spout (22) sliding connection's concatenation slide bar (23), each sample frame subassembly (2) are assembled on concatenation slide bar (23) through concatenation spout (22).

8. An ultraviolet spectrophotometer as set forth in claim 7, wherein: the cross section of concatenation spout (22) and concatenation slide bar (23) is for the trapezoidal of falling of mutually supporting, concatenation slide bar (23) are provided with two at least, and each concatenation slide bar (23) parallel each other, pass through connecting plate (24) fixed connection between concatenation slide bar (23).

9. An ultraviolet spectrophotometer as set forth in claim 7, wherein: the bottom of cell (5) is placed in sample groove (3), be provided with positioning mechanism between cell (5) and sample groove (3), positioning mechanism is including locating piece (8) that are fixed in cell (5) bottom and seting up in sample groove (3) bottom and with locating piece (8) constant head tank (11) of mutually supporting.

10. An ultraviolet spectrophotometer as set forth in claim 9, wherein: locating piece (8) and constant head tank (11) all are "ten" font, locating piece (8) are including crossing locating piece (9) and locating piece two (10) that set up, constant head tank (11) are including crossing constant head tank one (12) and constant head tank two (13) that set up, the length of constant head tank one (12) is greater than the length of constant head tank two (13), the length of locating piece one (9) is less than the length of constant head tank one (12), and is greater than the length of constant head tank two (13), the length of locating piece two (10) is less than the length of constant head tank two (13).