CN216816576U - Driving and protecting structure for realizing reciprocating motion of capillary chromatographic column - Google Patents
Driving and protecting structure for realizing reciprocating motion of capillary chromatographic column Download PDFInfo
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- CN216816576U CN216816576U CN202220396631.XU CN202220396631U CN216816576U CN 216816576 U CN216816576 U CN 216816576U CN 202220396631 U CN202220396631 U CN 202220396631U CN 216816576 U CN216816576 U CN 216816576U
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- chromatographic column
- capillary chromatographic
- protection box
- reciprocating motion
- protection
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Abstract
The utility model discloses a driving and protecting structure for realizing reciprocating motion of a capillary chromatographic column, and relates to the technical field of chemical instruments. Including the protection box, the rear side inner wall of protection box is close to the upside position and installs the extension axle through locking mechanism, and the trailing flank of extension axle passes through set screw and solenoid valve output shaft fixed connection, the epaxial protection box rear side wall front side position that is located of extension is provided with the metal tongs, the metal tongs is kept away from and is provided with capillary chromatographic column fastener on the end of extension axle, the rear side inner wall of protection box is close to the lower left corner position and is provided with protection mechanism, it accomodates capillary chromatographic column body to be the state of buckling in the protection box. The utility model can realize the reciprocating motion and reliable disassembly and assembly of the capillary chromatographic column body, and the protection mechanism can realize the limit and lubrication protection of the capillary chromatographic column body in the reciprocating motion, reduce the abrasion of the capillary chromatographic column body and prolong the service life.
Description
Technical Field
The utility model relates to the technical field of chemical instruments, in particular to a driving and protecting structure for realizing reciprocating motion of a capillary chromatographic column.
Background
With the development of chemical detection technology, gas chromatography is widely applied to the detection of organic compounds, and usually a column system combined with a capillary chromatographic column is adopted to perform gas detection of the compounds, the capillary chromatographic column is generally made of a non-metal material with certain elasticity, such as quartz glass, the outer wall of the capillary chromatographic column is coated with a non-metal protective coating, the inner wall of the capillary chromatographic column is coated with an adsorption layer corresponding to different compounds, and when the outer wall protective coating is damaged, the capillary chromatographic column is easy to break at the damaged part.
In the prior art, the reciprocating movement of the capillary chromatographic column in the detector is a common way for realizing the specific function of the chemical analysis instrument, and how to reduce the reliable driving and protection of the capillary chromatographic column in the reciprocating movement process is a key step for developing the corresponding chemical analysis instrument.
SUMMERY OF THE UTILITY MODEL
The utility model provides a driving and protecting structure for realizing the reciprocating motion of a capillary chromatographic column, which aims to solve the problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a realize capillary chromatographic column reciprocating motion's drive and protection architecture, includes the protection box, the rear side inner wall of protection box is close to the upside position and installs the extension axle through locking mechanism, and the trailing flank of extension axle passes through set screw and solenoid valve output shaft fixed connection, the epaxial protection box rear side lateral wall front side position that is located of extension is provided with the metal tongs, the metal tongs is kept away from and is provided with capillary chromatographic column fastener on the end of extension axle, the rear side inner wall of protection box is close to the lower left corner position and is provided with protection mechanism, it accomodates capillary chromatographic column body to be the state of buckling in the protection box, capillary chromatographic column body passes capillary chromatographic column fastener and protection mechanism in proper order.
Furthermore, the locking mechanism comprises a compression screw, a compression gasket and an elastic washer, the compression screw is mounted on the extension shaft, and the compression gasket and the elastic washer are arranged between the rear side face of the compression screw and the inner wall of the rear side of the protection box.
Furthermore, the top of the extension shaft is provided with a square shaft for the installation of the metal gripper, and the front side surface of the extension shaft is provided with a screw hole for installing a compression screw.
Furthermore, the end of the lower side of the metal gripper is provided with a wedge-shaped bayonet matched with the shape of the capillary chromatographic column fastener and an elastic extension foot of a metal plate structure.
Furthermore, the protection mechanism comprises a column sleeve guide rail and a graphite column sleeve, the column sleeve guide rail is installed on the inner wall of the rear side of the protection box, and the graphite column sleeve is installed on the left side face of the column sleeve guide rail in a buckling mode.
Furthermore, the column sleeve guide rail is made of stainless steel materials, the graphite column sleeve is made of non-metal lubricating materials, and the appearance of the graphite column sleeve is a cylinder with reducing diameters.
Compared with the prior art, the utility model provides a driving and protecting structure for realizing the reciprocating motion of a capillary chromatographic column, which has the following beneficial effects:
this realize capillary chromatographic column reciprocating motion's drive and protection architecture drives the extension axle rotation through setting up the solenoid valve output shaft, and the extension axle drives capillary chromatographic column fastener reciprocating motion through the metal tongs, can realize the reciprocating motion and the reliable dismouting of capillary chromatographic column body, and protection mechanism can realize spacing and the lubrication protection of capillary chromatographic column body in reciprocating motion, reduces the wearing and tearing of capillary chromatographic column body, increases life.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the locking mechanism of the present invention;
FIG. 3 is a left side view of the metal gripper of the present invention;
FIG. 4 is an exploded view of the protection mechanism of the present invention;
FIG. 5 is a schematic view of the initial state of the present invention;
fig. 6 is a schematic diagram of the motion state of the present invention.
In the figure: 1. a protection box; 2. a locking mechanism; 201. a compression screw; 202. compressing the gasket; 203. an elastic washer; 3. an extension shaft; 4. a set screw; 5. an electromagnetic valve; 6. a metal gripper; 7. a capillary chromatography column fastener; 8. a protection mechanism; 801. a column jacket guide rail; 802. sleeving a graphite column; 9. a capillary chromatography column body; 10. a screw hole; 11. a wedge-shaped bayonet; 12. an elastic extension foot.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the utility model discloses a driving and protecting structure for realizing the reciprocating motion of a capillary chromatographic column, which comprises a protecting box 1, wherein an extending shaft 3 is arranged at the position, close to the upper side, of the inner wall of the rear side of the protecting box 1 through a locking mechanism 2, the rear side surface of the extending shaft 3 is fixedly connected with an output shaft of a solenoid valve 5 through a positioning screw 4, a metal grip 6 is arranged at the front side position of the rear side wall of the protecting box 1 on the extending shaft 3, a capillary chromatographic column fastening piece 7 is arranged at the end of the metal grip 6 far away from the extending shaft 3, the capillary chromatographic column fastening piece 7 is made of metal, the two ends of the capillary chromatographic column fastening piece are provided with conical outer profiles, a pore canal for partially or completely inserting the capillary chromatographic column body 9 from one end is arranged in the middle of the extending shaft, the pore canal can be a through hole with the same diameter or a reducing mouth, a single capillary chromatographic column body 9 with the same diameter is inserted from the pore canal, or two capillary column bodies 9 with the same diameter are inserted from the two sides of the pore canal, and compress tightly 7 both sides of capillary chromatographic column fastener with specific instrument, can realize capillary chromatographic column fastener 7 and capillary chromatographic column body 9's fixed connection, the rear side inner wall of protection box 1 is close to the lower left corner position and is provided with protection mechanism 8, it accomodates capillary chromatographic column body 9 to be the state of buckling in the protection box 1, capillary chromatographic column body 9 passes capillary chromatographic column fastener 7 and protection mechanism 8 in proper order.
Specifically, the locking mechanism 2 comprises a compression screw 201, a compression gasket 202 and an elastic washer 203, the compression screw 201 is mounted on the extension shaft 3, and the compression gasket 202 and the elastic washer 203 are arranged between the rear side surface of the compression screw 201 and the inner wall of the rear side of the protection box 1.
In this embodiment, the compression screw 201 is threadedly mounted to the front side of the extension shaft 3, and the compression washer 202 and the elastic washer 203 mount the metal hand grip 6 to the extension shaft 3.
Specifically, the installation position of the top end of the extension shaft 3 for the metal gripper 6 is a square shaft, and the front side surface of the extension shaft 3 is provided with a screw hole 10 for installing a compression screw 201.
In this embodiment, the extension shaft 3 can drive the metal gripper 6 to rotate, and the screw hole 10 facilitates the installation of the compression screw 201.
Specifically, the end of the lower side of the metal gripper 6 is provided with a wedge-shaped bayonet 11 matched with the shape of the capillary chromatographic column fastener 7 and an elastic extension leg 12 of a metal plate structure.
In this embodiment, the wedge-shaped bayonet 11 is matched with the elastic extension leg 12, so that the capillary chromatographic column fastener 7 is convenient to mount, and the capillary chromatographic column fastener 7 is not easy to fall off.
Specifically, the protection mechanism 8 includes a column sleeve guide rail 801 and a graphite column sleeve 802, the column sleeve guide rail 801 is installed on the inner wall of the rear side of the protection box 1, and the graphite column sleeve 802 is installed on the left side surface of the column sleeve guide rail 801 in a snap-fit manner.
In this embodiment, the vertical limiting hole is formed in the column sleeve guide rail 801, so that the capillary chromatographic column body 9 can be conveniently inserted, the column sleeve guide rail 801 facilitates installation of the graphite column sleeve 802, and the graphite column sleeve 802 lubricates and guides the capillary chromatographic column body 9.
Specifically, the column jacket guide rails 801 are made of stainless steel materials, the graphite column jacket 802 is made of non-metal lubricating materials, and the shape of the graphite column jacket is a cylinder with variable diameters.
In this embodiment, the graphite column sleeve 802 is provided with the fine through hole in clearance fit with the capillary chromatographic column body 9, and when the capillary chromatographic column body 9 rubs against the graphite column sleeve 802 in the reciprocating motion, because the graphite has a lubricating property and has a hardness lower than the outer cover of the capillary chromatographic column body 9, the capillary chromatographic column body 9 can be lubricated and protected in the motion process, and the friction to other metal surfaces is avoided to cause damage, so as to ensure the service life of the capillary chromatographic column body 9.
When in use, the capillary chromatographic column body 9 is inserted from bottom to top through the limiting hole on the column sleeve guide rail 801, the capillary chromatographic column body 9 is bent by 135 degrees and then is connected with the capillary chromatographic column fastener 7, the other section of the capillary chromatographic column body 9 is connected with the other side of the capillary chromatographic column fastener 7 and is bent by 45 degrees and then penetrates out through the limiting hole of the graphite column sleeve 802, so that the bending posture of the capillary chromatographic column body 9 is changed into a horizontal posture, the output shaft of the electromagnetic valve 5 drives the extension shaft 3 to rotate, the extension shaft 3 drives the capillary chromatographic column fastener 7 to reciprocate through the metal gripper 6, the capillary chromatographic column fastener 7 drives the capillary chromatographic column body 9 to reciprocate, the reciprocating motion and reliable disassembly and assembly of the capillary chromatographic column body 9 can be realized, through the thin through hole in clearance fit with the capillary chromatographic column body 9 arranged on the graphite column sleeve 802 in the protection mechanism 8, when the capillary chromatographic column body 9 is rubbed with the graphite column sleeve 802 in the reciprocating motion, because graphite has lubricating property and hardness is lower than the appearance envelope of the capillary chromatographic column body 9, the capillary chromatographic column body 9 can be lubricated and protected in the motion process, and the friction to other metal surfaces to generate damage is avoided, so that the service life of the capillary chromatographic column body 9 is ensured.
In conclusion, the structure for driving and protecting the reciprocating motion of the capillary chromatographic column can realize the reciprocating motion and reliable disassembly and assembly of the capillary chromatographic column body 9, and the protection mechanism 8 can realize the limiting and lubricating protection of the capillary chromatographic column body 9 in the reciprocating motion, reduce the abrasion of the capillary chromatographic column body 9 and prolong the service life.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A drive and protection structure for realizing reciprocating motion of a capillary chromatographic column comprises a protection box (1), and is characterized in that: the utility model discloses a protection box, including protection box (1), solenoid valve (5), locking mechanism (2), metal tongs (6), capillary chromatographic column fastener (7), protection box (1) rear side wall, protection mechanism (8) and protection box (9), capillary chromatographic column fastener (7) and protection mechanism (8) have been accomodate to be the state of buckling in protection box (1), capillary chromatographic column body (9) pass capillary chromatographic column fastener (7) and protection mechanism (8) in proper order in protection box (1)'s rear side inner wall is close to upside position and installs extension axle (3), and the trailing flank of extension axle (3) passes through set screw (4) and solenoid valve (5) output shaft fixed connection, it is provided with metal tongs (6) to lie in protection box (1) rear side wall front side position, metal tongs (6) keep away from being provided with capillary chromatographic column fastener (7) on the end of extension axle (3).
2. A driving and protecting structure for realizing reciprocating motion of a capillary chromatographic column according to claim 1, wherein: the locking mechanism (2) comprises a compression screw (201), a compression gasket (202) and an elastic washer (203), the compression screw (201) is installed on the extension shaft (3), and the compression gasket (202) and the elastic washer (203) are arranged between the rear side face of the compression screw (201) and the inner wall of the rear side of the protection box (1).
3. The driving and protecting structure for realizing the reciprocating motion of the capillary chromatographic column according to claim 1, characterized in that: the installation position of the metal gripper (6) on the top end of the extension shaft (3) is a square shaft, and a screw hole (10) for installing a compression screw (201) is formed in the front side face of the extension shaft (3).
4. A driving and protecting structure for realizing reciprocating motion of a capillary chromatographic column according to claim 1, wherein: and the lower end of the metal gripper (6) is provided with a wedge-shaped bayonet (11) matched with the shape of the capillary chromatographic column fastener (7) and an elastic extension foot (12) of a metal plate structure.
5. A driving and protecting structure for realizing reciprocating motion of a capillary chromatographic column according to claim 1, wherein: the protection mechanism (8) comprises a column sleeve guide rail (801) and a graphite column sleeve (802), the column sleeve guide rail (801) is installed on the inner wall of the rear side of the protection box (1), and the graphite column sleeve (802) is installed on the left side face of the column sleeve guide rail (801) in a buckling mode.
6. The driving and protecting structure for realizing the reciprocating motion of the capillary chromatographic column according to claim 5, wherein: the column sleeve guide rail (801) is made of stainless steel materials, the graphite column sleeve (802) is made of non-metal lubricating materials, and the shape of the graphite column sleeve is a cylinder with reducing diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220396631.XU CN216816576U (en) | 2022-02-25 | 2022-02-25 | Driving and protecting structure for realizing reciprocating motion of capillary chromatographic column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220396631.XU CN216816576U (en) | 2022-02-25 | 2022-02-25 | Driving and protecting structure for realizing reciprocating motion of capillary chromatographic column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216816576U true CN216816576U (en) | 2022-06-24 |
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ID=82043988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220396631.XU Active CN216816576U (en) | 2022-02-25 | 2022-02-25 | Driving and protecting structure for realizing reciprocating motion of capillary chromatographic column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216816576U (en) |
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2022
- 2022-02-25 CN CN202220396631.XU patent/CN216816576U/en active Active
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