CN209927803U - Chromatographic column of liquid chromatograph - Google Patents
Chromatographic column of liquid chromatograph Download PDFInfo
- Publication number
- CN209927803U CN209927803U CN201920717549.0U CN201920717549U CN209927803U CN 209927803 U CN209927803 U CN 209927803U CN 201920717549 U CN201920717549 U CN 201920717549U CN 209927803 U CN209927803 U CN 209927803U
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- limiting sleeve
- piece
- column tube
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- 239000007788 liquid Substances 0.000 title claims abstract description 54
- 239000003463 adsorbent Substances 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims abstract description 13
- 210000001503 joint Anatomy 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 32
- 238000000926 separation method Methods 0.000 abstract description 13
- 230000008859 change Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000005526 G1 to G0 transition Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004186 food analysis Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
The utility model discloses a chromatographic column of a liquid chromatograph, which comprises a column tube, wherein a solid adsorbent is filled in the column tube, a liquid inlet cavity and a liquid outlet are respectively arranged at two ends of the column tube, connecting sleeves are respectively connected at two ends of the column tube, the connecting sleeves and the column tube are in running connection with through holes, the connecting sleeves are movably connected with a main body limiting sleeve for installation, the limiting sleeve is in a hollow arrangement, the limiting sleeve is fixedly connected with two groups of connecting rods, the connecting sleeves are provided with two groups of connecting holes, and a clamping assembly is elastically arranged on the connecting rods; and the limiting sleeve is in threaded connection with a nut. Through above-mentioned technical scheme, be convenient for to the separation effect between adapter sleeve and the stop collar, improve the change effect to solid adsorbent, promote the work efficiency that awaits measuring liquid detected.
Description
Technical Field
The utility model belongs to the technical field of biological laboratory equipment's technique and specifically relates to a chromatographic column of liquid chromatograph is related to.
Background
The liquid chromatograph is an instrument which utilizes the difference of distribution ratio of mixture between two liquids which are liquid-solid or not mutually soluble to separate the mixture first and then analyze and identify the mixture. Liquid chromatography requires only that the sample be made into a solution, is not limited by the volatility of the sample, has a wide selection range of mobile phases, and a wide variety of stationary phases, and thus can separate thermally unstable and volatile, dissociative and non-dissociative, and various molecular weight ranges of substances. The liquid chromatograph has the advantages of high resolution, high sensitivity, high speed, repeated utilization of chromatographic column, easy collection of effluent component, etc., so that it is used widely in biochemistry, food analysis, medicine research, environment analysis, inorganic analysis and other fields.
Patent publication No. CN207096191U does discloses a high performance liquid chromatography column, including the column tube, go up spectrum column cap and lower chromatogram column cap, the one end of column tube is the inlet, the inlet leads to the feed liquor chamber, be equipped with reposition of redundant personnel separation blade and last filter plate in the column tube of feed liquor chamber below, the column tube intussuseption is filled with the stationary phase adsorbent, the inlet overcoat has last chromatogram column cap, the surface of column tube is equipped with the external screw thread, the other end of column tube is equipped with well filter plate, the column tube is installed in lower chromatogram column cap, lower chromatogram column cap is interior to have the internal thread, the external screw thread matching outside internal thread and the column tube, still be equipped with down the filter plate in the lower chromatogram column cap, be equipped with the double-screw bolt between well filter plate and the.
The above prior art solutions have the following drawbacks: after long-time test work, when the stationary phase adsorbent is replaced, the upper chromatographic column head or the lower chromatographic column head needs to be taken out, and the upper chromatographic column head and the lower chromatographic column head are worn in the process of repeatedly disassembling the upper chromatographic column head, so that the service life of a chromatograph is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a liquid chromatograph's chromatographic column, it has and is convenient for change the in-process to the fixed adsorbent in the chromatographic column, promotes the life of chromatograph, ensures the normal work of chromatograph.
The utility model discloses a can realize through following technical scheme:
a chromatographic column of a liquid chromatograph comprises a column tube, wherein a solid adsorbent is filled in the column tube, a liquid inlet cavity and a liquid outlet are respectively arranged at two ends of the column tube, connecting sleeves are respectively connected at two ends of the column tube, the connecting sleeves and the column tube are connected with through holes in a penetrating manner, the connecting sleeves are movably connected with a limiting sleeve for mounting a main body, the limiting sleeve is arranged in a hollow manner, two groups of connecting rods are fixedly connected with the limiting sleeve, two groups of connecting holes are formed in the connecting sleeve, and a clamping assembly is elastically arranged on each connecting rod; and the limiting sleeve is in threaded connection with a nut.
Through adopting above-mentioned technical scheme, it enters into the feed liquor intracavity after the through-hole to wait to detect liquid, it detects the liquid that awaits measuring under the effect of fixed adsorbent to wait to detect liquid, long-term testing process back, need change fixed adsorbent, place fixed adsorbent in the column casing, drive stop collar towards the adapter sleeve motion, the connecting rod follows the stop collar towards the connecting hole direction motion, under the effect of chucking subassembly, connecting rod and connecting hole internal fixation are connected, realize the installation effect of being convenient for between adapter sleeve and the stop collar, nut and the mass spectrometer fixed connection with two sets of stop collars, the completion is to the effect that the fixed adsorbent in the chromatographic column changed.
Further setting the following steps: the clamping assembly comprises a butt joint piece hinged to the end portion of the connecting rod and an inserting block fixedly connected with the butt joint piece, the other end of the butt joint piece is elastically connected with the connecting rod, a groove is formed in the connecting hole, and the inserting block is inserted into the groove along the horizontal direction.
Through adopting above-mentioned technical scheme, the connecting rod drives the butt piece and moves towards the connecting hole, and the one end of butt piece is articulated with the connecting rod, and the other end of butt piece receives the squeezing action of connecting hole inner wall, and the butt piece moves towards the connecting rod direction, and grafting piece and connecting hole inner wall butt, when the grafting piece moves to the groove position, the grafting piece is pegged graft in the recess, realizes the connecting rod along the ascending fixed effect of vertical side, accomplishes the fixed effect between adapter sleeve and the stop collar.
Further setting the following steps: the butt joint piece and the connecting rod are fixedly connected with a first elastic restoring piece.
By adopting the technical scheme, when the inserting block moves to the groove, under the original shape restoring effect of the first elastic restoring piece, the abutting sheet is driven to move towards the groove, the inserting block is driven to be inserted into the groove, and the fixing effect between the connecting sleeve and the limiting sleeve is achieved; when the drive butt joint piece moves towards the connecting rod direction, first elasticity restores the piece by the compression, and the separation effect between adapter sleeve and the stop collar is realized to the grafting piece from roll-off in the recess.
Further setting the following steps: the abutting sheet is obliquely arranged, the extending size of the abutting sheet is larger than the size of the groove from the opening of the connecting hole, and one end, far away from the groove, of the abutting sheet is located outside the connecting hole.
Through adopting above-mentioned technical scheme, when the grafting piece is pegged graft in the recess, the connecting rod direction motion is kept away from to first elasticity restoring piece drive butt piece orientation, and the other end of butt piece is located outside the connecting hole, is convenient for drive butt piece orientation and keeps away from the recess direction motion.
Further setting the following steps: the inner wall of the connecting hole is fixedly connected with a second elastic restoring piece, the other end of the second elastic restoring piece is abutted to the end part of the connecting rod, and the extension length of the second elastic restoring piece in the original length is larger than the distance from the groove to the inner wall of the end part of the connecting hole.
Through adopting above-mentioned technical scheme, when the connecting rod moved towards the connecting hole direction, the tip and the second elasticity of connecting rod resume a butt, and drive second elasticity and resume a compressed, roll-off in the recess was followed to the drive plug block, under the effect of second elasticity resume a piece, the connecting rod was driven towards keeping away from the connecting hole direction and moved, is convenient for realize the separation effect between adapter sleeve and the stop collar.
Further setting the following steps: and a filter screen is arranged at the position of the through hole on the connecting sleeve.
By adopting the technical scheme, after the liquid to be detected passes through the through hole in the connecting sleeve, the liquid to be detected is filtered by the filter screen, so that the liquid to be detected is completely absorbed by the solid adsorbent, the measurement precision is improved, and the service life of the fixed adsorbent is prolonged.
Further setting the following steps: the inside cavity of adapter sleeve and stop collar tip all set up to leak hopper-shaped, the stop collar tip with the adapter sleeve inner wall laminates completely.
By adopting the technical scheme, the liquid to be detected flows into the connecting sleeve after passing through the limiting sleeve, the liquid to be detected flows into the through hole in the cavity in the connecting sleeve, and the liquid to be detected flows towards the through hole from the circumferential inner wall of the connecting sleeve, so that the liquid to be detected is ensured to completely flow out of the connecting sleeve.
Further setting the following steps: and a sealing ring is arranged at the position where the limiting sleeve is connected with the connecting sleeve.
Through adopting above-mentioned technical scheme, under the effect through connecting rod and connecting hole between adapter sleeve and the stop collar, realize fixed effect, wait to detect liquid and flow into to the adapter sleeve in from the stop collar, the sealing washer ensures that the liquid that waits to detect flows in the adapter sleeve, ensures the normal work of chromatographic column.
To sum up, the utility model discloses a beneficial technological effect does:
the drive butt piece moves towards keeping away from the recess direction, and the roll-off is swung from the recess to the inserted block, realizes the separation effect of connecting rod and connecting hole, restores under the effect of piece at the second elasticity, and the connecting rod is released from the connecting hole, realizes the separation effect between stop collar and the adapter sleeve, detaches the filter screen, and solid adsorbent passes the through-hole position and takes out from the column pipe, accomplishes the change effect to solid adsorbent.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1 taken at section A-A;
fig. 3 is a partially enlarged view of portion B of fig. 2.
Reference numerals: 1. a column tube; 2. a liquid inlet cavity; 3. a liquid outlet; 4. connecting sleeves; 5. a through hole; 6. a limiting sleeve; 7. a connecting rod; 8. connecting holes; 9. a nut; 10. abutting the sheet; 11. an insertion block; 12. a groove; 13. a first elastic restoring member; 14. a second elastic restoring member; 15. filtering with a screen; 16. and (5) sealing rings.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a chromatographic column of liquid chromatograph, including column tube 1, column tube 1 is the cavity setting, and column tube 1 intussuseption is filled with fixed adsorbent, and column tube 1 adopts stainless steel to make, and the fixed phase adsorbent plays the effect of separation liquid phase component, has improved the precision of chromatographic column when detecting, has made things convenient for the use of chromatographic column simultaneously, and pressure is great when the chromatographic column uses, uses the column tube 1 that the stainless steel made to increase the life of chromatographic column; feed liquor chamber 2 and liquid outlet 3 have been seted up respectively to the both ends of column casing 1, the equal body coupling in both ends of column casing 1 has adapter sleeve 4, adapter sleeve 4 sets up for cavity and is used for supplying the liquid that awaits measuring to pass, two sets of adapter sleeves 4 all have through-hole 5 with column casing 1 through connection, it has filter screen 15 to lie in through-hole 5 position threaded connection on adapter sleeve 4, be convenient for to the impurity filtration in the liquid that awaits measuring, will await measuring liquid and get into the feeding intracavity from through-hole 5, it is discharged from the discharge gate after the material in the liquid that awaits measuring is adsorbed by fixed adsorbent in column casing 1, accomplish the detection achievement of chromatographic column to the liquid that await.
Referring to fig. 2, in order to install a chromatographic column on a chromatograph, one end of the connecting sleeve 4, which is far away from the column tube 1, is slidably connected with a limiting sleeve 6, the other end of the limiting sleeve 6 is in threaded connection with a nut 9, the limiting sleeve 6 is arranged in a hollow manner and is communicated and connected with the nut 9, a liquid to be measured is extracted from the chromatograph and is injected into the limiting sleeve 6, in order to ensure that the liquid to be detected completely slides out, the cavity of the connecting sleeve 4 and the end part of the limiting sleeve 6 are both arranged in a funnel shape, the end part of the limiting sleeve 6 is completely attached to the inner wall of the connecting sleeve 4, the liquid to be detected completely and interactively slides to the position of the through hole 5 along the circumferential inner wall of the connecting sleeve 4, in order to ensure the sealing performance between the connecting sleeve 4 and the limiting sleeve 6, a sealing ring 16 is sleeved and connected at the connecting position between the limiting sleeve 6 and the connecting sleeve 4, and the sealing ring 16 is made of rubber materials in the prior art, so that the liquid to be detected is ensured to flow into the connecting sleeve 4 from the limiting sleeve 6.
Referring to fig. 2 and 3, the solid adsorbent needs to be replaced in long-term detection work, in order to facilitate separation of the limiting sleeve 6 from the connecting table, the connecting sleeve 4 is provided with two groups of connecting holes 8, the limiting sleeve 6 is fixedly connected with two groups of connecting rods 7, the connecting rods 7 are arranged vertically, the connecting rods 7 are inserted into the connecting holes 8, and the connecting rods 7 are elastically provided with clamping assemblies for realizing the fixing effect of the connecting sleeve 4 and the limiting sleeve 6; the chucking subassembly includes with 7 tip articulated butt pieces 10 of connecting rod and with 10 fixed connection's of butt piece grafting piece 11, butt piece 10 sets up for the slope, and the inner wall of connecting hole 8 is seted up because recess 12, and recess 12 is the opening setting towards the one end of connecting rod 7, and the first elastic recovery piece 13 of position fixed connection of connecting rod 7 tip is kept away from to butt piece 10, and recess 12 is the level setting, and connecting hole 8 is vertical setting.
Referring to fig. 2 and 3, the limiting sleeve 6 is driven to move towards the cavity of the connecting sleeve 4, the end part of the limiting sleeve 6 is completely attached to the inner wall of the connecting sleeve 4, the connecting rod 7 moves towards the direction of the connecting hole 8, the abutting piece 10 abuts against the inner wall of the connecting hole 8, the abutting piece 10 is extruded, the first elastic restoring piece 13 is compressed, the end part of the inserting block 11 abuts against the inner wall of the connecting hole 8, when the inserting block 11 moves to the groove 12, under the original shape restoring effect of the first elastic restoring piece 13, the inserting block 11 is driven to move towards the direction of the groove 12, the inserting block 11 is inserted into the groove 12, the connecting rod 7 is limited in vertical movement, and the fixing effect between the limiting sleeve 6 and the connecting sleeve 4 is achieved; for the convenience of the separation effect to adapter sleeve 4 and stop collar 6, butt piece 10 sets up for the slope, and extends the size and be greater than recess 12 to 8 opening part sizes of connecting hole, butt piece 10 is kept away from outside recess 12's one end is located connecting hole 8, be convenient for drive butt piece 10 moves towards keeping away from recess 12 direction, butt piece 10 drives insertion block 11 and moves towards keeping away from recess 12 direction, realize adapter sleeve 4 and 6 separation effects of stop collar.
Referring to fig. 3, in order to realize the separation effect between stop collar 6 and the adapter sleeve 4, 8 inner walls of connecting hole fixedly connected with second elasticity restore 14, the other end of second elasticity restore 14 and the tip butt of connecting rod 7, the extension length that second elasticity restore 14 is in original length is greater than the distance between recess 12 inner wall to 8 tip inner walls of connecting hole, when the plug-in block 11 on the butt piece 10 is pegged graft in recess 12, connecting rod 7 extrudes second elasticity restore 14, second elasticity restore 14 is compressed, swing roll-off in the recess 12 is followed to the plug-in block 11 when the drive, under the effect of the original shape of the recovery of second elasticity restore 14, connecting rod 7 is driven towards keeping away from 8 direction movements of connecting hole, be convenient for stop collar 6 to roll-off in the connecting hole 8.
The implementation principle and the beneficial effects of the embodiment are as follows: the liquid to be detected is injected into the limiting sleeve 6 from the chromatograph, the liquid to be detected flows into the connecting sleeve 4 from the limiting sleeve 6, impurities in the liquid to be detected are filtered by the filter screen 15, the liquid to be detected enters the column tube 1 through the through hole 5, the solid adsorbent absorbs and detects the liquid to be detected, and the detection effect on the liquid to be detected is completed; when the solid adsorbent needs to be replaced, the abutting piece 10 is driven to move towards the direction far away from the groove 12, the abutting piece 11 swings and slides out of the groove 12, the separation effect of the connecting rod 7 and the connecting hole 8 is achieved, the connecting rod 7 is pushed out of the connecting hole 8 under the action of the second elastic restoring piece 14, the separation effect between the limiting sleeve 6 and the connecting sleeve 4 is achieved, the filter screen 15 is detached, the solid adsorbent penetrates through the through hole 5 and is taken out of the column tube 1, and the replacement effect of the solid adsorbent is achieved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a chromatographic column of liquid chromatograph, includes column tube (1), column tube (1) intussuseption is filled with solid adsorbent, the both ends of column tube (1) are provided with feed liquor chamber (2) and liquid outlet (3) respectively, its characterized in that: the two ends of the column tube (1) are both connected with a connecting sleeve (4), the connecting sleeve (4) and the column tube (1) are connected with a through hole (5) in a penetrating manner, the connecting sleeve (4) is movably connected with a limiting sleeve (6) used for installing the column tube (1), the limiting sleeve (6) is arranged in a hollow manner, the limiting sleeve (6) is fixedly connected with two groups of connecting rods (7), the connecting sleeve (4) is provided with two groups of connecting holes (8), and a clamping assembly used for fixing the connecting sleeve (4) and the limiting sleeve (6) is elastically arranged on each connecting rod (7); and the limiting sleeve (6) is in threaded connection with a nut (9).
2. The column of a liquid chromatograph of claim 1, wherein: the clamping assembly comprises a butt joint piece (10) hinged to the end of the connecting rod (7) and an insertion block (11) fixedly connected with the butt joint piece (10), the other end of the butt joint piece (10) is elastically connected with the connecting rod (7), a groove (12) is formed in the connecting hole (8), and the insertion block (11) is inserted into the groove (12) along the horizontal direction.
3. The column of a liquid chromatograph of claim 2, wherein: the abutting piece (10) and the connecting rod (7) are fixedly connected with a first elastic restoring piece (13).
4. The column of a liquid chromatograph of claim 3, wherein: the abutting piece (10) is obliquely arranged, the extending size of the abutting piece is larger than the size of the opening of the connecting hole (8) from the groove (12), and one end, far away from the groove (12), of the abutting piece (10) is located outside the connecting hole (8).
5. The column of a liquid chromatograph of claim 4, wherein: the inner wall of the connecting hole (8) is fixedly connected with a second elastic restoring piece (14), the other end of the second elastic restoring piece (14) is abutted to the end part of the connecting rod (7), and the extension length of the second elastic restoring piece (14) in the original length is larger than the distance from the groove (12) to the inner wall of the end part of the connecting hole (8).
6. The column of a liquid chromatograph of claim 1, wherein: and a filter screen (15) is arranged on the connecting sleeve (4) and positioned at the through hole (5).
7. The column of a liquid chromatograph of claim 1, wherein: the connecting sleeve (4) is internally provided with a cavity and the end part of the limiting sleeve (6) is arranged to be funnel-shaped, and the end part of the limiting sleeve (6) is completely attached to the inner wall of the connecting sleeve (4).
8. The column of a liquid chromatograph of claim 1, wherein: and a sealing ring (16) is arranged at the position where the limiting sleeve (6) is connected with the connecting sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920717549.0U CN209927803U (en) | 2019-05-18 | 2019-05-18 | Chromatographic column of liquid chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920717549.0U CN209927803U (en) | 2019-05-18 | 2019-05-18 | Chromatographic column of liquid chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209927803U true CN209927803U (en) | 2020-01-10 |
Family
ID=69091126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920717549.0U Expired - Fee Related CN209927803U (en) | 2019-05-18 | 2019-05-18 | Chromatographic column of liquid chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209927803U (en) |
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2019
- 2019-05-18 CN CN201920717549.0U patent/CN209927803U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |