CN109432824B - Column tube lifting mechanism - Google Patents
Column tube lifting mechanism Download PDFInfo
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- CN109432824B CN109432824B CN201811506791.XA CN201811506791A CN109432824B CN 109432824 B CN109432824 B CN 109432824B CN 201811506791 A CN201811506791 A CN 201811506791A CN 109432824 B CN109432824 B CN 109432824B
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- cylinder
- column
- cantilever
- column tube
- upright post
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- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 16
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention provides a column tube lifting mechanism. The column tube lifting mechanism adopts a cylinder structure to realize the lifting of the column tube. According to the invention, the lifting process can be conveniently realized by controlling the upper air nozzle and the lower air nozzle, the column tube can be conveniently screwed out around the upright column through the cantilever, the problem of complex process of moving the column tube of the chromatographic column in the related art is solved, and the step of moving the column tube of the chromatographic column is simplified; and because of the limit of the cylinder stroke, the collision between the column tube and the column head can be avoided, the problem that equipment is damaged easily in the process of moving the column tube of the chromatographic column in the related technology is solved, and the safety of the equipment is ensured.
Description
Technical Field
The invention relates to the field of industrial separation and purification, in particular to a column tube lifting mechanism for a chromatographic column tube.
Background
In order to be convenient to clean and replace, the screen of the chromatographic column in the industry needs to be convenient to disassemble in structure; therefore, how to move the column tube pressed on the screen and avoid secondary pollution becomes a technical problem to be solved.
In the prior art, in order to hoist a column pipe pressed on a screen to separate from the screen, a hook is installed on the column pipe, the column pipe is hooked by a column head, and then the column pipe is hoisted by a lifting motor of the column head. After the column tube is lifted to a specified height, the column tube is locked on the column, then the column head descends to remove the hook, and the column tube is unscrewed. In the process, the operation is complicated, and in the process of descending the column head, if the operation is not timely, the column head can be impacted on the column pipe to cause equipment damage.
Disclosure of Invention
The invention provides a column tube lifting mechanism, which at least solves the problems that the process of moving the column tube of a chromatographic column is complex and equipment is easy to damage in the related art.
According to an aspect of an embodiment of the present invention, there is provided a column tube lifting mechanism including: the cylinder piston, the cylinder body, the upper air tap, the lower air tap and the cantilever,
The cylinder body surrounds the upright post of the chromatographic column and is in sliding fit with the upright post; the cylinder body and the upright post form an annular air chamber; the cylinder piston is matched with the cylinder body in the annular air chamber and divides the annular air chamber into an upper air chamber and a lower air chamber; the cylinder piston is fixedly connected with the upright post; the upper air chamber is communicated with the upper air nozzle, and the lower air chamber is communicated with the lower air nozzle;
The cantilever surrounds on the upright post and is in sliding fit with the upright post and the cylinder body of the cylinder respectively, so that lifting movement of the cantilever along the axial direction of the upright post and rotation movement of the cantilever around the axial direction of the upright post are realized.
According to the column tube lifting mechanism provided by the embodiment of the invention, the lifting of the column tube is realized by adopting the cylinder structure, the lifting process can be conveniently realized only by controlling the upper air nozzle and the lower air nozzle, the column tube can be conveniently screwed out of the column tube around the column through the cantilever, the problem of complex process of moving the column tube of the chromatographic column in the related technology is solved, and the step of moving the column tube of the chromatographic column is simplified; and because of the limit of the cylinder stroke, the collision between the column tube and the column head can be avoided, the problem that equipment is damaged easily in the process of moving the column tube of the chromatographic column in the related technology is solved, and the safety of the equipment is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a transverse cross-sectional view of a column tube lifting mechanism according to an embodiment of the present invention;
Fig. 2 is a schematic view of a column tube lifting mechanism according to an embodiment of the present invention mounted on a chromatography column.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In this embodiment, there is provided a column tube lifting mechanism, fig. 1 is a transverse cross-sectional view of the column tube lifting mechanism according to an embodiment of the present invention, as shown in fig. 1, including: a cylinder piston 11, a cylinder block 12, an upper air tap 13, a lower air tap 14 and a cantilever 20, wherein,
The cylinder body 12 surrounds the column 30 of the chromatographic column and is in sliding fit with the column 30; the cylinder body 12 and the upright post 30 form an annular air chamber 15; the cylinder piston 11 is matched with the cylinder body 12 in the annular air chamber 15, and divides the annular air chamber 15 into an upper air chamber and a lower air chamber; the cylinder piston 11 is fixedly connected with the upright post 30; the upper air chamber is communicated with the upper air nozzle 13, and the lower air chamber is communicated with the lower air nozzle 14;
the cantilever 20 surrounds the upright 30 and is respectively in sliding fit with the upright 30 and the cylinder body 12 so as to realize the lifting movement of the cantilever 20 along the axial direction of the upright 30 and the rotation movement of the cantilever 20 around the axial direction of the upright 30.
Through the structure, the lifting movement of the cantilever 20 can be realized through the upper air nozzle 13 and the lower air nozzle 14, and the cantilever 20 is in sliding fit with the upright post 30, so that the cantilever can axially rotate around the upright post 30. Therefore, the problem that the process of moving the column tube of the chromatographic column in the related technology is complex and equipment is easy to damage can be solved through the column tube lifting mechanism, the step of moving the column tube of the chromatographic column is simplified, and the safety of the equipment is ensured.
There are various ways of fixedly connecting the cylinder piston 11 to the column 30, for example, by welding the cylinder piston to the column 30. Alternatively, in the present embodiment, the cylinder piston 11 is fixedly connected to the column 30 by the card 16 and the screw 17, wherein the card 16 is inserted into the column 30, and the screw 17 fixes the card 16 and the cylinder piston 11 together. Preferably, the air chamber enclosed by the cylinder body 12 and the upright post 30 is an annular air chamber 15 with an annular longitudinal section, so the longitudinal section of the cylinder piston 11 is also annular. In order to realize the stable connection of the cylinder piston 11 and the upright post 30, the clamping piece 16 is also an annular clamping piece, and can be formed by combining and connecting two semi-annular clamping pieces, and the annular clamping piece 16 is fixedly connected with the annular cylinder piston 11 through a plurality of screws 17.
Optionally, to facilitate the disassembly of the cylinder, the cylinder block 12 includes a block upper cover 121, a block 122, and a block lower cover 123, wherein the block upper cover 121 is connected with the upper air tap 13, and the block lower cover 123 is connected with the lower air tap 14. The connection mode can be threaded connection.
Alternatively, in order to reduce friction force of the cantilever 20 with the cylinder upper cover 121 when rotating around the column 30, an end face bearing 41 is provided on a horizontal contact surface of the cylinder upper cover 121 with the cantilever 20, wherein a tight ring of the end face bearing 41 is connected with the cantilever 20, and a loose ring of the end face bearing 41 is connected with the cylinder upper cover 121.
Alternatively, in order to reduce friction force of the cantilever 20 with the cylinder upper cover 121 while rotating around the column 30, a ball bearing 42 is provided on a vertical contact surface of the cylinder upper cover 121 with the cantilever 20, wherein an inner ring of the ball bearing 42 is connected with the cantilever 20 and an outer ring of the ball bearing 42 is connected with the cylinder upper cover 121.
Optionally, guide rings 50 made of non-metal are arranged on contact surfaces of the cantilever 20, the cylinder upper cover 121 and the cylinder lower cover 123 and the upright post 30 respectively. By setting the tolerance of the guide ring 50, the guide ring 50 mainly bears the pressure between the guide ring and the upright 30, and friction loss among the cantilever 20, the cylinder upper cover 121 and the cylinder lower cover 123 and the upright 30 is avoided.
Optionally, O-rings 60 are provided on the contact surfaces of the cylinder upper cover 121, the cylinder piston 11, and the cylinder lower cover 123 with the column 30, respectively. The O-ring 60 is provided on the contact surface between the cylinder upper cover 121 and the cylinder lower cover 123 and the cylinder 122, respectively. An O-ring 60 is provided on the contact surface between the cylinder piston 11 and the cylinder 122. The cylinder is closed by the O-ring seal 60 described above.
Alternatively, the cantilever 20 is bolted to the vial to achieve a detachable connection.
Through the above embodiment of the present invention, lifting and unscrewing of the column tube can be achieved. In the practical application scene, the column tube lifting mechanisms of the embodiment of the invention can be respectively arranged on the two upright posts of the chromatographic column, and the two column tube lifting mechanisms cooperatively control the lifting process. Referring to fig. 2, the column tube 63 is fixed to the two column tube lifting mechanisms 60 by two bolts, and compressed air is pressurized to the cylinder by the upper air tap or the lower air tap, respectively, to thereby realize the column tube lifting process. After the vial is raised to a predetermined position, the latch of one vial lift mechanism 60 connected to the vial 63 is opened and the vial 63 can be rotated out by the other vial lift mechanism 60. The operation process is simple and safe, and the impact of the column tube 63 and the column head 61 or the screen mesh 62 can be avoided through the design of the cylinder stroke of the cylinder.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A vial lifting mechanism, the vial lifting mechanism comprising: the cylinder piston, the cylinder body, the upper air tap, the lower air tap and the cantilever,
The cylinder body surrounds the upright post of the chromatographic column and is in sliding fit with the upright post; the cylinder body and the upright post form an annular air chamber; the cylinder piston is matched with the cylinder body in the annular air chamber and divides the annular air chamber into an upper air chamber and a lower air chamber; the cylinder piston is fixedly connected with the upright post; the upper air chamber is communicated with the upper air nozzle, and the lower air chamber is communicated with the lower air nozzle;
The cantilever surrounds the upright post and is in sliding fit with the upright post and the cylinder body of the air cylinder respectively so as to realize lifting movement of the cantilever along the axial direction of the upright post and rotation movement of the cantilever around the axial direction of the upright post;
The cantilever is detachably connected with the column tube;
The cylinder piston is fixedly connected with the upright post through a clamping piece and a screw, wherein the clamping piece is inserted into the upright post, and the clamping piece and the cylinder piston are fixed together through the screw;
the cylinder body comprises a cylinder body upper cover, a cylinder body and a cylinder body lower cover, wherein the cylinder body upper cover is connected with the upper air tap, and the cylinder body lower cover is connected with the lower air tap.
2. The column tube lifting mechanism of claim 1, wherein an end face bearing is arranged on a horizontal contact surface of the cylinder upper cover and the cantilever, wherein a tightening ring of the end face bearing is connected with the cantilever, and a loosening ring of the end face bearing is connected with the cylinder upper cover.
3. The column tube lifting mechanism of claim 1, wherein a ball bearing is disposed on a vertical contact surface of the cylinder upper cover and the cantilever, wherein an inner ring of the ball bearing is connected with the cantilever, and an outer ring of the ball bearing is connected with the cylinder upper cover.
4. The column tube lifting mechanism according to claim 1, wherein guide rings made of non-metal materials are arranged on contact surfaces of the cantilever, the upper cylinder cover and the lower cylinder cover with the column respectively.
5. The column tube lifting mechanism of claim 1, wherein O-rings are provided on the contact surfaces of the cylinder upper cover, the cylinder piston and the cylinder lower cover with the column respectively.
6. The column tube lifting mechanism of claim 1, wherein O-rings are provided on contact surfaces of the cylinder upper cover and the cylinder lower cover with the cylinder respectively.
7. A vial lifting mechanism according to claim 1 wherein an O-ring is provided on the interface of the cylinder piston and the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506791.XA CN109432824B (en) | 2018-12-10 | Column tube lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811506791.XA CN109432824B (en) | 2018-12-10 | Column tube lifting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109432824A CN109432824A (en) | 2019-03-08 |
| CN109432824B true CN109432824B (en) | 2024-06-25 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801066A (en) * | 2015-04-07 | 2015-07-29 | 利穗科技(苏州)有限公司 | Chromatographic column with maintenance mechanism |
| CN104803297A (en) * | 2014-01-23 | 2015-07-29 | 北大方正集团有限公司 | Tower crane apparatus and large beam ion injection equipment |
| CN209361912U (en) * | 2018-12-10 | 2019-09-10 | 北京华创精科生物技术有限公司 | Column tube elevating mechanism |
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104803297A (en) * | 2014-01-23 | 2015-07-29 | 北大方正集团有限公司 | Tower crane apparatus and large beam ion injection equipment |
| CN104801066A (en) * | 2015-04-07 | 2015-07-29 | 利穗科技(苏州)有限公司 | Chromatographic column with maintenance mechanism |
| CN209361912U (en) * | 2018-12-10 | 2019-09-10 | 北京华创精科生物技术有限公司 | Column tube elevating mechanism |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Effective date of registration: 20220301 Address after: 310053 room 10007, 1f, No. 6899, Wentao Road, Puyan street, Binjiang District, Hangzhou, Zhejiang Applicant after: Zhejiang Jinyi Shengshi Biological Engineering Co.,Ltd. Address before: 102208 room 1011, 10 / F, block a, Longyu center, building 1, yard 1, Longyu middle street, Huilongguan town, Changping District, Beijing Applicant before: BEIJING HUACHUANG JINGKE BIOTECHNOLOGY Co.,Ltd. |
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