A device for eluting aldehyde and ketone samples

Abstract

The utility model relates to the technical field of environmental monitoring, and discloses an aldehyde and ketone sample elution device, including a bracket mainboard, both sides of the upper end surface of the bracket mainboard are fixedly connected with bracket side plates, a bracket top plate is fixedly connected between the two bracket side plates, a plurality of card slots are provided on the upper end surface of the bracket mainboard, a plurality of the card slots are engaged with brown volumetric bottles, a DNPH sampling tube is movably sleeved on the upper inner wall of the plurality of brown volumetric bottles, a connecting tube is fixedly connected to the upper end surface of the DNPH sampling tube, a tube plug is movably sleeved on the upper end surface of the connecting tube. In the utility model, the new elution structure can meet the elution requirements of aldehyde and ketone samples in the ambient air, and has better usability. At the same time, the stability of the device can be improved by adding a support structure for the outer wall of the container bottle, thereby avoiding the problem of unstable use caused by the tilt of the brown container bottle, and has better practicality.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental monitoring, in particular to an aldehyde and ketone sample elution device. Background Art

[0002] Aldehydes and ketones are a class of organic compounds containing aldehyde and ketone groups, which are commonly found in natural products, such as coumarin compounds in plants, and are also widely present in synthetic chemicals. The aldehyde and ketone sample elution device is a device used to analyze and extract aldehyde and ketone compounds, and is usually used for chemical analysis and detection in laboratories or production processes.

[0003] The existing elution device has low efficiency and limited applicability, and cannot meet the elution requirements of aldehyde and ketone samples in ambient air, thereby greatly reducing the efficiency of use and increasing the cost. Therefore, those skilled in the art provide an aldehyde and ketone sample elution device to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the present utility model is to solve the shortcomings existing in the prior art, and to propose an aldehyde and ketone sample elution device, which can meet the elution requirements of aldehyde and ketone samples in ambient air by setting up a new elution structure, and has better usability. At the same time, the stability of the device can be improved by adding a support structure for the outer wall of the container bottle, thereby avoiding the problem of unstable use caused by the tilt of the brown container bottle, and has better practicality.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An aldehyde and ketone sample elution device comprises a bracket mainboard, both sides of the upper end surface of the bracket mainboard are fixedly connected with bracket side plates, a bracket top plate is fixedly connected between the two bracket side plates, a plurality of card slots are provided on the upper end surface of the bracket mainboard, a plurality of the card slots are engaged with brown volumetric flasks, a DNPH sampling tube is movably sleeved on the inner wall of the upper end of the plurality of the brown volumetric flasks, a connecting tube is fixedly connected to the upper end surface of the DNPH sampling tube, a tube plug is movably sleeved on the upper end surface of the connecting tube, and a syringe is movably sleeved in the tube plug;

[0007] An adjusting cylinder is fixedly connected to the lower part of the opposite side of the two bracket side plates, a driving groove is provided on the opposite side of the two adjusting cylinders, a bidirectional threaded rod is rotatably connected between the front and rear end inner walls of the two driving grooves, a limiting rod is threadedly sleeved between the front and rear end outer walls of the two bidirectional threaded rods, a plurality of grooves are provided on the opposite side of the two limiting rods, and the brown volumetric bottles corresponding to the plurality of grooves are contacted and arranged;

[0008] Through the above technical scheme, a 5ml brown volumetric flask is placed on the card slot of the bracket mainboard, a DNPH sampling tube is placed at the interface of the brown volumetric flask, 5ml acetonitrile is added to the DNPH sampling tube and the tube plug is covered, the injection head of the syringe is inserted into the small hole of the tube plug, and the elution rate is maintained at 1 drop per second. The syringe is slowly pushed to allow acetonitrile to enter the brown volumetric flask through the DNPH sampling tube, thereby achieving a convenient elution effect, and the bidirectional threaded rod rotates synchronously, and the two limit rods are forced to move and reduce the spacing, so that the groove on the limit rod can achieve a better supporting effect on the brown volumetric flask, thereby effectively avoiding the problem that the brown volumetric flask is unstable and easy to tilt due to the single card engagement in the card slot.

[0009] Furthermore, a plurality of holes are provided on the upper end surface of the bracket top plate, and a plurality of the connecting pipes are movably sleeved in the corresponding holes respectively;

[0010] Through the above technical solution, a better limiting effect on the connecting pipe can be achieved by movably sleeved the connecting pipe in the empty hole.

[0011] Furthermore, the front ends of the two bidirectional threaded rods penetrate the adjustment tube to the outside and are fixedly connected with a rotating head;

[0012] Through the above technical solution, better control of the bidirectional threaded rod can be achieved by adding a rotating head.

[0013] Further, the threads of the two bidirectional threaded rods are arranged oppositely;

[0014] Through the above technical solution, the purpose of convenient control with both hands can be achieved by setting the threads of the bidirectional threaded rod in opposite directions, which has better convenience.

[0015] Furthermore, both sides of the two limit rods are fixedly connected with limit slide blocks, and one side inner wall of the two driving grooves is provided with a limit slide groove, and the plurality of limit slide blocks are respectively slidably arranged in the corresponding limit slide grooves;

[0016] Through the above technical solution, the limiting slider is set to slide in the limiting groove, thereby achieving a better limiting effect on the limiting rod, thereby achieving the purpose of stable movement.

[0017] Furthermore, an auxiliary groove is provided on the lower end surface of the bracket mainboard, and an anti-slip pad is fixedly connected inside the auxiliary groove;

[0018] Through the above technical solution, a better anti-slip effect can be achieved by arranging an anti-slip pad under the bracket mainboard.

[0019] Furthermore, the groove is semicircular in shape;

[0020] Through the above technical solution, by adopting a semicircular shape of the groove, a better fit and limiting effect on the brown volumetric bottle can be achieved.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model proposes an aldehyde and ketone sample elution device. A 5ml brown volumetric flask is placed on the card slot of the bracket mainboard, a DNPH sampling tube is placed at the interface of the brown volumetric flask, 5ml acetonitrile is added to the DNPH sampling tube, and the tube plug is covered. The injection head of the syringe is inserted into the small hole of the tube plug, and the elution speed is maintained at 1 drop per second. The syringe is slowly pushed to allow the acetonitrile to enter the brown volumetric flask through the DNPH sampling tube, thereby achieving a convenient elution effect. The utility model has a simple structure and is easy to operate, and can meet the elution requirements of aldehyde and ketone samples in ambient air.

[0023] 2. The utility model proposes an aldehyde and ketone sample elution device, which rotates two rotating heads to make two bidirectional threaded rods rotate synchronously, and the two limit rods are forced to move and reduce the distance between them, so that the grooves on the limit rods can better support the brown container bottle, thereby effectively avoiding the problem of the brown volumetric flask being unstable and easy to tilt due to the single card in the card slot, and has better protection and usability.

[0024] 3. The utility model proposes an aldehyde and ketone sample elution device, which can meet the elution requirements of aldehyde and ketone samples in the ambient air by setting up a new elution structure, and has better usability. At the same time, the stability of the device can be improved by adding a support structure for the outer wall of the container bottle, thereby avoiding the problem of unstable use caused by the tilt of the brown container bottle, and has better practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an axonometric schematic diagram of an aldehyde and ketone sample elution device proposed by the utility model;

[0026] Figure 2 It is a partial front cross-sectional schematic diagram of an aldehyde and ketone sample elution device proposed by the utility model;

[0027] Figure 3 It is a partial top-sectional schematic diagram of an aldehyde and ketone sample elution device proposed by the utility model;

[0028] Figure 4 for Figure 3 An enlarged schematic diagram of the structure at A;

[0029] Figure 5 The utility model provides an axonometric schematic diagram of a support mainboard of an aldehyde and ketone sample elution device.

[0030] Legend:

[0031] 1. Bracket main board; 2. Auxiliary slot; 3. Anti-slip pad; 4. Bracket side panel; 5. Bracket top plate; 6. Card slot; 7. Brown volumetric flask; 8. DNPH sampling tube; 9. Connecting tube; 10. Tube plug; 11. Syringe; 12. Empty hole; 13. Adjustment cylinder; 14. Drive slot; 15. Bidirectional threaded rod; 16. Limit rod; 17. Limit slide groove; 18. Limit slider; 19. Groove; 20. Rotating head. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the specific implementation of the utility model to clearly and completely describe the technical solutions in the specific implementation of the utility model. Obviously, the specific implementation described is only a part of the specific implementation of the utility model, not all of the specific implementation. Based on the specific implementation of the utility model, all other specific implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Reference Figure 1-5 , a specific implementation mode provided by the utility model: an aldehyde and ketone sample elution device, comprising a bracket main board 1, an auxiliary groove 2 is provided on the lower end surface of the bracket main board 1, and an anti-skid pad 3 is fixedly connected inside the auxiliary groove 2. The anti-skid pad 3 arranged under the bracket main board 1 can achieve a better anti-skid effect, both sides of the upper end surface of the bracket main board 1 are fixedly connected with bracket side plates 4, and a bracket top plate 5 is fixedly connected between the two bracket side plates 4. The upper end surface of the bracket main board 1 is provided with a plurality of card slots 6, and the plurality of card slots 6 are all engaged with brown volumetric flasks 7. The upper inner walls of the plurality of brown volumetric flasks 7 are movably sleeved with DNPH sampling tubes 8, and the upper end surfaces of the DNPH sampling tubes 8 are fixedly connected with connecting tubes 9. The upper end surface of the bracket top plate 5 is provided with a plurality of empty holes 12, and the plurality of connecting tubes 9 are respectively movably sleeved in the corresponding empty holes 12. By movably sleeved in the empty holes 12, a better limiting effect on the connecting tubes 9 can be achieved, and the upper end surface of the connecting tube 9 is movably sleeved with a pipe plug 10, and a syringe 11 is movably sleeved in the pipe plug 10;

[0034] An adjusting cylinder 13 is fixedly connected to the lower part of the opposite side of the two bracket side plates 4, and a driving groove 14 is opened on the opposite side of the two adjusting cylinders 13. A two-way threaded rod 15 is rotatably connected between the front and rear end inner walls of the two driving grooves 14. The front ends of the two two-way threaded rods 15 penetrate the adjusting cylinder 13 to the outside and are fixedly connected with a rotating head 20. The additional rotating head 20 can achieve a better control of the two-way threaded rod 15. The threads of the two two-way threaded rods 15 are arranged in opposite directions. The purpose of convenient control with both hands can be achieved by arranging the threads of the two-way threaded rods 15 in opposite directions, which has better convenience. A threaded sleeve is arranged between the front and rear end outer walls of the two two-way threaded rods 15 There are limit rods 16, and both sides of the two limit rods 16 are fixedly connected to limit sliders 18. The inner walls of one side of the two driving grooves 14 are provided with limit slides 17. Multiple limit slides 18 are respectively slidably set in the corresponding limit slides 17. The sliding setting of the limit slides 18 in the limit slides 17 can achieve a better limiting effect on the limit rods 16, thereby achieving the purpose of stable movement. Multiple grooves 19 are provided on the opposite side of the two limit rods 16, and the shape of the grooves 19 is semicircular. By adopting the semicircular shape of the grooves 19, the brown volumetric flask 7 can be better fitted and limited. Multiple grooves 19 are respectively set in contact with the corresponding brown volumetric flask 7.

[0035] Working principle: When in use, place a 5ml brown volumetric flask 7 on the card slot 6 of the bracket main board 1, place a DNPH sampling tube 8 at the interface of the brown volumetric flask 7, add 5ml acetonitrile to the DNPH sampling tube 8 and then cover the tube plug 10, insert the injection head of the syringe 11 into the small hole of the tube plug 10, maintain an elution rate of 1 drop per second, and slowly push the syringe 11 to allow acetonitrile to enter the brown volumetric flask 7 through the DNPH sampling tube 8, thereby achieving a convenient elution effect, and by rotating the two rotating heads 20, the two bidirectional threaded rods 15 rotate synchronously, and the two limit rods 16 are forced to move and reduce the spacing, so that the groove 19 on the limit rod 16 can achieve a better support effect on the brown volumetric flask 7, thereby effectively avoiding the problem that the brown volumetric flask 7 is unstable and easy to tilt due to the single card engagement in the card slot 6.

[0036] Finally, it should be noted that the above is only a preferred specific implementation method of the present utility model and is not used to limit the present utility model. Although the present utility model is described in detail with reference to the aforementioned specific implementation methods, for those skilled in the art, they can still modify the technical solutions recorded in the aforementioned specific implementation methods, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An aldehyde and ketone sample elution device, comprising a support main board (1), characterized in that: Both sides of the upper end surface of the bracket main board (1) are fixedly connected with bracket side plates (4), and a bracket top plate (5) is fixedly connected between the two bracket side plates (4). The upper end surface of the bracket main board (1) is provided with a plurality of card slots (6), and the plurality of card slots (6) are all provided with brown volumetric flasks (7) in a snap-fit ​​manner. The upper inner walls of the plurality of brown volumetric flasks (7) are movably sleeved with DNPH sampling tubes (8), and the upper end surface of the DNPH sampling tube (8) is fixedly connected with a connecting tube (9), and the upper end surface of the connecting tube (9) is movably sleeved with a tube plug (10), and a syringe (11) is movably sleeved inside the tube plug (10); An adjusting cylinder (13) is fixedly connected to the lower part of the opposite side of the two bracket side plates (4), a driving groove (14) is provided on the opposite side of the two adjusting cylinders (13), a bidirectional threaded rod (15) is rotatably connected between the front and rear end inner walls of the two driving grooves (14), a limiting rod (16) is threadedly sleeved between the front and rear end outer walls of the two bidirectional threaded rods (15), a plurality of grooves (19) are provided on the opposite side of the two limiting rods (16), and the plurality of grooves (19) are respectively arranged in contact with the corresponding brown volumetric bottles (7).

2. An aldehyde and ketone sample elution device according to claim 1, characterized in that: The upper end surface of the bracket top plate (5) is provided with a plurality of hollow holes (12), and the plurality of connecting pipes (9) are movably sleeved in the corresponding hollow holes (12).

3. An aldehyde and ketone sample elution device according to claim 1, characterized in that: The front ends of the two bidirectional threaded rods (15) both penetrate the adjustment tube (13) to the outside and are fixedly connected to a rotating head (20).

4. An aldehyde and ketone sample elution device according to claim 1, characterized in that: The threads of the two bidirectional threaded rods (15) are arranged in opposite directions.

5. The aldehyde and ketone sample elution device according to claim 1, characterized in that: The two limiting rods (16) are fixedly connected to limiting slide blocks (18) on both sides, and the inner walls of one side of the two driving grooves (14) are provided with limiting slide grooves (17), and the plurality of limiting slide blocks (18) are respectively slidably arranged in the corresponding limiting slide grooves (17).

6. An aldehyde and ketone sample elution device according to claim 1, characterized in that: An auxiliary groove (2) is provided on the lower end surface of the bracket mainboard (1), and an anti-slip pad (3) is fixedly connected inside the auxiliary groove (2).

7. An aldehyde and ketone sample elution device according to claim 1, characterized in that: The groove (19) is semicircular in shape.

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