CN211014003U - Sample introduction device of ultraviolet-visible spectrophotometer - Google Patents
Sample introduction device of ultraviolet-visible spectrophotometer Download PDFInfo
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- CN211014003U CN211014003U CN201921459319.5U CN201921459319U CN211014003U CN 211014003 U CN211014003 U CN 211014003U CN 201921459319 U CN201921459319 U CN 201921459319U CN 211014003 U CN211014003 U CN 211014003U
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Abstract
The utility model discloses a sample feeding device of an ultraviolet-visible spectrophotometer, which comprises a feeding unit for feeding a sample into the spectrophotometer, a sample feeding unit for feeding the sample into a darkroom in the spectrophotometer and a curtain device for shielding light; the feeding unit comprises a feeding belt, a first belt conveyor and a material pushing device, wherein the first belt conveyor is used for conveying and fixing samples, and the material pushing device is used for pushing the samples into the sample conveying unit; two ends of the first belt conveyor respectively penetrate through the two curtain devices, and the two curtain devices are positioned in the spectrophotometer; the sample feeding unit is positioned on one side of a belt of the first belt conveyor, and the push rod pushes the sample into the sample feeding unit under the rotation of the rotating rod; the sample feeding unit is partially positioned in a dark room of the spectrophotometer, and the part of the sample feeding unit positioned in the dark room is separated from the rest part by a curtain device. The utility model discloses can be automatic send into the spectrophotometer with the sample in, simultaneously can the at utmost reduce the accuracy nature that improves the detection in the external light gets into the spectrophotometer.
Description
Technical Field
The utility model relates to a measurement detection area, concretely relates to ultraviolet visible spectrophotometer sampling device.
Background
A spectrophotometer is an instrument for qualitatively and quantitatively analyzing a substance by using a spectrophotometric method, in which the substance is qualitatively and quantitatively analyzed by measuring the degree of absorption of light of the substance to be measured at a specific wavelength or within a certain wavelength range, and the amount of absorption of monochromatic light radiation by the substance when passing through a solution of the substance to be measured is proportional to the concentration of the substance and the thickness of a liquid layer.
With the development of scientific technology, the use of a spectrophotometer plays a crucial role in scientific research. Common ultraviolet-visible spectrophotometer need place the sample on the rack carrying out the in-process of measuring, puts into the detection machine with the rack again, and it is very inconvenient to operate like this.
Patent No. CN208091905U discloses a spectrophotometer strip feeder, which uses a strip mode to feed samples into a spectrophotometer. When the spectrophotometer works, external light needs to be isolated as much as possible, and partial light enters by adopting movable feeding.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defect of prior art, the utility model aims at providing an ultraviolet-visible spectrophotometer sampling device, can be automatic send into the spectrophotometer with the sample, simultaneously can the at utmost reduce outside light and get into the accuracy nature that improves the detection in the spectrophotometer.
The purpose of the utility model is realized through such technical scheme:
the ultraviolet visible spectrophotometry sample feeding device comprises a feeding unit for feeding a sample into a spectrophotometer, a sample feeding unit for feeding the sample into a darkroom in the spectrophotometer and a curtain device for shielding light;
the feeding unit comprises a feeding belt and a feeding device, wherein the feeding belt comprises a first belt conveyor and a material pushing device; a plurality of top protrusions are uniformly arranged on the side surface of the belt of the first belt conveyor, and clamping grooves with the same number as the top protrusions are uniformly arranged on the belt surface of the belt of the first belt conveyor; each clamping groove comprises two bulges which are arranged in parallel relatively and used for limiting the sample;
the pushing device comprises a rotating rod, a push rod and a reset device for resetting the rotating rod; the middle part of the rotating rod is rotatably arranged; one end of the rotating rod can be contacted with the top projection under the state that the resetting device is not stressed, and the other end of the rotating rod is provided with a push rod; the push rod can push the sample on the belt of the first belt conveyor when the rotating rod rotates;
two ends of the first belt conveyor respectively penetrate through the two curtain devices, and the two curtain devices are positioned in the spectrophotometer;
the sample feeding unit is positioned on one side of a belt of the first belt conveyor, and the push rod pushes the sample into the sample feeding unit under the rotation of the rotating rod;
the sample feeding unit is partially positioned in a dark room of the spectrophotometer, and the part of the sample feeding unit positioned in the dark room is separated from the rest part by a curtain device.
Further, the return means comprises a return spring; one end of the reset spring is fixed, the other end of the reset spring is fixedly connected with the rotating rod, and when the reset spring is not stressed, the push rod is not in contact with a sample on a belt of the first belt conveyor.
Furthermore, the end face of the free end of the push rod is in an arc shape inwards concave towards the push rod, and one end of the sample is always in contact with the arc-shaped face of the push rod when the push rod pushes the sample.
Further, the curtain device comprises a curtain frame and two curtains; the two curtains are hung at the upper end of the curtain frame, and the curtain frame part on the upper belt of the first belt conveyor are completely shielded in a natural state.
Further, the curtain carrier includes a frame and a cross-bar; the frame is rectangular, and the cross rod is parallel to the ejector rod of the frame through a connecting rod and is fixed on the frame on the surface different from the surface of the frame; the two curtains are hung on the cross bar; the two curtains are overlapped at adjacent ends under the natural state.
Further, a projection of the edge of the curtain in a direction perpendicular to its plane is located on the frame.
Further, the curtain was black.
Further, the sample feeding unit comprises a second belt conveyor and a sample box;
the second belt conveyor is mounted on one side of the first belt conveyor, and one side of the sample box is open, the opening being flush and aligned with the end of the second belt conveyor.
Furthermore, a plurality of positioning bulges are uniformly arranged on the belt surface of the second belt conveyor;
and a torsion spring is arranged at one end of the rotating rod, which is contacted with the top protrusion.
Furthermore, the device also comprises two guide groove plates; and the two guide grooves are arranged at the feed inlet of the second belt conveyor in a funnel shape and guide the samples on the first belt conveyor to the second belt conveyor.
Due to the adoption of the technical scheme, the utility model discloses following advantage has:
make the sample pass through two different access channels to the darkroom that detects behind the entering spectrophotometer through setting up the pan feeding unit and sending a kind unit, the light of passageway outside that can get into the reduction of the light quantity maximize of darkroom, rethread curtain device can shelter from and absorb partial light again, even if the sample is when getting into the darkroom through the pan feeding unit like this, the inside received outside light of darkroom is still very little, what detect like this in the darkroom is that can be more accurate.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The drawings of the utility model are as follows:
FIG. 1 is a schematic structural diagram of a sample injection device of an ultraviolet-visible spectrophotometer in the embodiment.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is an enlarged schematic view of a portion B in fig. 2.
FIG. 4 is a schematic view of the section C-C in FIG. 1.
Fig. 5 is an enlarged schematic view of the structure at E in fig. 4.
FIG. 6 is a schematic view of the structure of section D-D in FIG. 1.
In the figure: 11. a first belt conveyor; 111. carrying out top convex; 112. a card slot; 1121. a protrusion; 121. a rotating rod; 1211. a torsion spring; 122. a push rod; 1221. an arc-shaped surface; 1231. a return spring; 21. a second belt conveyor; 211. positioning the projection; 22. a sample cartridge; 311. a frame; 312. a cross bar; 313. a connecting rod; 32. a curtain; 4. two guide groove plates; 5. a sample; 6. the darkroom is at the position.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example (b):
as shown in fig. 1 to 6, the ultraviolet visible spectrophotometric sample feeding device comprises a feeding unit for feeding a sample 5 into a spectrophotometer, a sample feeding unit for feeding the sample 5 into a darkroom in the spectrophotometer, and a curtain device for shielding light;
the feeding unit comprises a feeding belt and a feeding device, wherein the feeding belt comprises a first belt conveyor 11 and a material pushing device; a plurality of top protrusions 111 are uniformly arranged on the side surface of the belt of the first belt conveyor 11, and clamping grooves 112 with the same number as the top protrusions 111 are uniformly arranged on the belt surface of the belt of the first belt conveyor 11; each clamping groove 112 comprises two protrusions 1121 which are arranged in parallel relatively and used for limiting the sample 5;
the pushing device comprises a rotating rod 121, a push rod 122 and a resetting device for resetting the rotating rod 121; the middle part of the rotating rod 121 is rotatably arranged; one end of the rotating rod 121 can contact with the top protrusion 111 under the state that the resetting device is not stressed, and the other end is provided with a push rod 122; the push rod 122 can push the sample 5 on the belt of the first belt conveyor 11 when the rotating rod 121 rotates;
two ends of the first belt conveyor 11 respectively penetrate through two curtain devices, and the two curtain devices are positioned in the spectrophotometer;
the sample feeding unit is positioned at one side of the belt of the first belt conveyor 11, and the push rod 122 pushes the sample 5 into the sample feeding unit under the rotation of the rotating rod 121;
the sample feeding unit is partially positioned in a dark room of the spectrophotometer, and the part of the sample feeding unit positioned in the dark room is separated from the rest part by a curtain device.
Make sample 5 pass through two different access channels to the darkroom that detects behind the entering spectrophotometer through setting up the pan feeding unit and sending a kind unit, the light of passageway outside that can get into the reduction of the light quantity maximize of darkroom, rethread curtain device can shelter from and absorb partial light again, even if sample 5 is when getting into the darkroom through the pan feeding unit like this, the inside received outside light of darkroom is still few, what detect like this in the darkroom can be more accurate.
Specifically, the return means comprises a return spring 1231; one end of the return spring 1231 is fixed, and the other end is fixedly connected with the rotating rod 121, and when the return spring 1231 is not stressed, the push rod 122 is not in contact with the sample 5 on the belt of the first belt conveyor 11.
The automatic reset of the rotating rod 121 can be realized through the reset spring 1231, and the structure is simple and stable.
Specifically, the end surface of the free end of the push rod 122 is an arc shape recessed toward the push rod 122, and when the push rod 122 pushes the sample 5, one end of the sample 5 is always in contact with the arc surface 1221 of the push rod 122.
The arrangement of the pushing surface of the pushing rod 122 as a curved surface enables the pushing rod 122 to push the linear second belt conveyor 21 as much as possible when the pushing rod 122 rotates at the rotation point of the rotating rod 121, and the pushing force of the pushing rod 122 on the sample 5 is applied.
Specifically, the curtain device includes a curtain frame and two curtains 32; the two curtains 32 are hung on the upper end of the curtain frame, and the curtain frame is completely shielded from the curtain frame portion on the upper belt of the first belt conveyor 11 in a natural state.
The curtains 32 are arranged in two, separated in the middle, so that the resistance when the sample 5 passes through the curtains 32 is small.
Specifically, the curtain carrier includes a frame 311 and a crossbar 312; the frame 311 is rectangular, the cross bar 312 is parallel to the top bar of the frame 311 through a connecting rod 313, and is fixed on the frame 311 on the different surface with the frame 311; two curtains 32 are suspended from a rail 312; the two curtains 32 naturally overlap at their adjacent ends.
By arranging the cross bar 312 and the frame 311 on different planes, the curtain 32 can be naturally dropped without being disturbed by the frame 311 when the curtain 32 is naturally dropped after the sample 5 has raised the curtain 32, so that the curtain 32 cannot naturally and smoothly drop. By providing curtains 32 as overlapping, light transmission at the intersection of two curtains 32 may be reduced.
Specifically, the edge of the curtain 32 is projected in a direction perpendicular to its plane on the frame 311.
The cross bar 312 and the frame 311 may allow the curtain 32 to be naturally vertical, thereby shielding the frame 311 from light, and thus minimizing light transmission.
Specifically, the curtain 32 is black.
The black curtain 32 may reduce light penetration.
Specifically, the sample feeding unit comprises a second belt conveyor 21 and a sample box 22;
the second belt conveyor 21 is mounted on one side of the first belt conveyor 11 and one side of the sample box 22 is open, the opening being flush and aligned with the end of the second belt conveyor 21.
The sample 5 can be transported to the darkroom of the spectrophotometer by the second belt conveyor, and the detected sample 5 can be collected by the sample box 22, so that the spectrophotometer can detect a plurality of samples 5 at one time without opening the top cover of the darkroom.
Specifically, a plurality of positioning protrusions 211 are uniformly arranged on the belt surface of the second belt conveyor 21;
a torsion spring 1211 is provided on one end of the rotating rod 121 contacting the protrusion 111.
The positioning protrusion 211 allows the position of the sample 5 on the second belt conveyor 21 to be relatively determined, and the torsion spring 1211 prevents the push rod 122 from further pushing the sample 5 after the sample 5 has been released to the positioning protrusion 211.
Specifically, the device also comprises two guide groove plates 4; the two guide grooves are arranged in a funnel shape at the feed inlet of the second belt conveyor 21 and guide the samples 5 on the first belt conveyor 11 to the second belt conveyor 21.
The position of the sample 5 can be straightened through the guide groove, and the detection in a darkroom is convenient.
This embodiment operates by placing a sample 5 into a pocket 112 on the first belt conveyor 11 and activating the first belt conveyor 11 and the second belt conveyor 21.
Under the rotation of the first belt conveyor 11, the top protrusion 111 moves, and after the top protrusion 111 contacts the rotating rod 121, the rotating rod 121 is forced to rotate, so that the push rod 122 pushes the sample 5 on the first belt conveyor 11, and the sample 5 is conveyed and straightened on the second belt conveyor 21 under the action of the push rod 122 and the guide groove.
After the sample 5 enters the position 6 where the darkroom is located under the action of the second belt conveyor 21, the second belt conveyor 21 stops rotating, and the spectrophotometer starts to detect the sample 5. The time interval and speed at which the second belt conveyor 21 operates are controlled according to the length of the detection time so that the samples 5 on the second belt conveyor 21 are detected at the time of detection.
When the test is completed, the second belt conveyor 21 continues to rotate, and the tested sample 5 is pushed into the sample box 22 to be collected.
During the testing process, the samples 5 can be continuously placed on the first belt conveyor 11. When the sample cartridge 22 is filled with the sample 5 after the test is completed, the spectrophotometer is turned off to take out the sample 5 in the sample cartridge 22.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (10)
1. The sample introduction device of the ultraviolet-visible spectrophotometer is characterized by comprising a material feeding unit for feeding a sample into the spectrophotometer, a sample feeding unit for feeding the sample into a darkroom in the spectrophotometer and a curtain device for shielding light;
the feeding unit comprises a feeding belt and a feeding device, wherein the feeding belt comprises a first belt conveyor and a material pushing device; a plurality of top protrusions are uniformly arranged on the side surface of the belt of the first belt conveyor, and clamping grooves with the same number as the top protrusions are uniformly arranged on the belt surface of the belt of the first belt conveyor; each clamping groove comprises two bulges which are arranged in parallel relatively and used for limiting the sample;
the pushing device comprises a rotating rod, a push rod and a reset device for resetting the rotating rod; the middle part of the rotating rod is rotatably arranged; one end of the rotating rod can be contacted with the top projection under the state that the resetting device is not stressed, and the other end of the rotating rod is provided with a push rod; the push rod can push the sample on the belt of the first belt conveyor when the rotating rod rotates;
two ends of the first belt conveyor respectively penetrate through the two curtain devices, and the two curtain devices are positioned in the spectrophotometer;
the sample feeding unit is positioned on one side of a belt of the first belt conveyor, and the push rod pushes the sample into the sample feeding unit under the rotation of the rotating rod;
the sample feeding unit is partially positioned in a dark room of the spectrophotometer, and the part of the sample feeding unit positioned in the dark room is separated from the rest part by a curtain device.
2. The uv-vis spectrophotometer sample introduction device according to claim 1, wherein the reset device comprises a reset spring; one end of the reset spring is fixed, the other end of the reset spring is fixedly connected with the rotating rod, and when the reset spring is not stressed, the push rod is not in contact with a sample on a belt of the first belt conveyor.
3. The sampling device of the ultraviolet-visible spectrophotometer of claim 1 wherein the end surface of the free end of the push rod is an arc that is concave towards the push rod, and one end of the sample is always in contact with the arc surface of the push rod when the push rod pushes the sample.
4. The uv-vis spectrophotometer sampling device of claim 1, wherein the curtain device comprises a curtain frame and two curtains; the two curtains are hung at the upper end of the curtain frame, and the curtain frame part on the upper belt of the first belt conveyor are completely shielded in a natural state.
5. The uv-vis spectrophotometer sampling device of claim 4, wherein the curtain holder comprises a frame and a cross bar; the frame is rectangular, and the cross rod is parallel to the ejector rod of the frame through a connecting rod and is fixed on the frame on the surface different from the surface of the frame; the two curtains are hung on the cross bar; the two curtains are overlapped at adjacent ends under the natural state.
6. The uv-vis spectrophotometer sample introduction device according to claim 5, wherein the projection of the edge of the curtain in a direction perpendicular to its plane is located on a frame.
7. The uv-vis spectrophotometer sample introduction device according to any one of claims 4-6, wherein the curtain is black.
8. The uv-vis spectrophotometer sample introduction device according to claim 1, wherein the sample introduction unit comprises a second belt conveyor, a sample cartridge;
the second belt conveyor is mounted on one side of the first belt conveyor, and one side of the sample box is open, the opening being flush and aligned with the end of the second belt conveyor.
9. The sampling device of the ultraviolet-visible spectrophotometer of claim 8 wherein the belt surface of the second belt conveyor is uniformly provided with a plurality of positioning protrusions;
and a torsion spring is arranged at one end of the rotating rod, which is contacted with the top protrusion.
10. The uv-vis spectrophotometer sample introduction device according to any one of claims 8-9, further comprising two guide slot plates; and the two guide grooves are arranged at the feed inlet of the second belt conveyor in a funnel shape and guide the samples on the first belt conveyor to the second belt conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459319.5U CN211014003U (en) | 2019-09-03 | 2019-09-03 | Sample introduction device of ultraviolet-visible spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921459319.5U CN211014003U (en) | 2019-09-03 | 2019-09-03 | Sample introduction device of ultraviolet-visible spectrophotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211014003U true CN211014003U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921459319.5U Active CN211014003U (en) | 2019-09-03 | 2019-09-03 | Sample introduction device of ultraviolet-visible spectrophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211014003U (en) |
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2019
- 2019-09-03 CN CN201921459319.5U patent/CN211014003U/en active Active
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