CN220819925U - Liner tube in gas chromatography - Google Patents
Liner tube in gas chromatography Download PDFInfo
- Publication number
- CN220819925U CN220819925U CN202322341162.9U CN202322341162U CN220819925U CN 220819925 U CN220819925 U CN 220819925U CN 202322341162 U CN202322341162 U CN 202322341162U CN 220819925 U CN220819925 U CN 220819925U
- Authority
- CN
- China
- Prior art keywords
- block
- lining
- bearing cavity
- groove
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000004817 gas chromatography Methods 0.000 title claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims abstract description 12
- 239000010453 quartz Substances 0.000 claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 19
- 238000005070 sampling Methods 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000011521 glass Substances 0.000 description 3
- 239000012494 Quartz wool Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a gas chromatography lining tube, and relates to the field of analysis and test instruments. A gas chromatography liner tube comprising a tube body, further comprising: the chromatographic column comprises a tube body, a bearing cavity and a chromatographic column connecting port, wherein the bearing cavity and the chromatographic column connecting port are arranged in the tube body, the chromatographic column connecting port is communicated with the bearing cavity, a supporting part is arranged in the bearing cavity, a quartz cotton cushion block is arranged on the supporting part, a lining cup is arranged on the quartz cotton cushion block, and a sample injection needle is fixedly arranged on the top of the lining cup; the circumference of the plurality of groups of limit guide grooves is equidistantly arranged on the inner wall of the pipe body; according to the utility model, when the lining cup is required to be taken out from the bearing cavity, the lining cup can be automatically pushed out from the inside of the bearing cavity, so that a worker can conveniently take the lining cup out from the bearing cavity, and when the lining cup is used, the lining cup placed in the bearing cavity can be limited and fixed in a multi-mode manner, so that the stability of the lining cup in the bearing cavity is improved.
Description
Technical Field
The utility model belongs to the technical field of analytical test instruments, and particularly relates to a gas chromatography lining tube.
Background
When the gas chromatographic analysis is carried out on the sample, special glass liner tube equipment is needed, and the glass liner tube can meet the requirement of carrying out basic analysis. For example: the invention discloses a gas chromatography glass liner tube structure, which solves the problems that in the prior art, the position of an inner liner cup is difficult to keep stable, the position of the inner liner cup is not limited, and deviation can occur in the position of the inner liner cup.
However, the above patent has a problem that the inner diameter of the pipe wall is small, so that when the liner cup needs to be taken out of the pipe wall, the operator is not facilitated to take out the liner cup from the pipe wall by means of a tool, and the utility model is proposed in view of the fact that the inner diameter of the pipe wall is small.
Disclosure of utility model
The technical problem to be solved by the present utility model is to overcome the disadvantages of the prior art and to provide a gas chromatography lining tube which overcomes or at least partially solves the above problems.
In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:
A gas chromatography liner tube comprising a tube body, further comprising: the chromatographic column comprises a tube body, a bearing cavity and a chromatographic column connecting port, wherein the bearing cavity and the chromatographic column connecting port are arranged in the tube body, the chromatographic column connecting port is communicated with the bearing cavity, a supporting part is arranged in the bearing cavity, a quartz cotton cushion block is arranged on the supporting part, a lining cup is arranged on the quartz cotton cushion block, and a sample injection needle is fixedly arranged on the top of the lining cup; the circumference of the plurality of groups of limit guide grooves is equidistantly arranged on the inner wall of the pipe body; the guide block is slidably connected in the limiting guide groove and fixedly connected with the outer wall of the lining cup, the supporting component is provided with a clamping assembly for limiting and fixing the guide block, a hollow cavity is formed between the inner wall and the outer wall of the pipe body, a sliding block is slidably connected in the hollow cavity, a push rod is fixedly connected to the sliding block, one end, away from the sliding block, of the push rod is in contact with the guide block, and a second spring is fixedly connected between the lower side of the sliding block and the hollow cavity.
In order to provide support for the quartz wool pad, preferably, the support component comprises a support ring, wherein the support ring is positioned in the bearing cavity and fixedly connected with the inner wall of the pipe body, and the upper side of the support ring is in contact with the quartz wool pad.
In order to provide spacing fixed to the inside lining cup, preferably, the joint subassembly includes the spliced block, and offer the spliced groove on the guide block, the spliced block is corresponding with the spliced groove, the constant head tank has been seted up in the guide block, constant head tank and spliced groove intercommunication, set up flutedly on the spliced block, sliding connection has the locating piece in the recess, fixedly connected with spring one between locating piece and the recess, the locating piece is pegged graft in the constant head tank.
In order to facilitate the release of the limit fixing of the guide block, the guide block further comprises a pull rope which is fixedly connected to the positioning block, and a pull ring is fixedly connected to one end of the outer wall of the pipe body and penetrates through the bottom of the connecting block.
In order to be able to close the hollow cavity, preferably, a sealing ring is fixedly connected to the lower side of the guide block, and the sealing ring is inserted into the hollow cavity.
In order to increase the sealing performance of the joint surface of the sealing ring and the hollow cavity, the sealing device further comprises a rubber ring, wherein the rubber ring is fixedly connected to the outer wall of the sealing ring, and the outer wall of the rubber ring is jointed with the hollow cavity.
After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects:
According to the utility model, when the lining cup is required to be taken out from the bearing cavity, the lining cup can be automatically pushed out from the inside of the bearing cavity, so that a worker can conveniently take out the lining cup from the bearing cavity, and when the lining cup is used, the lining cup placed in the bearing cavity can be subjected to multi-mode limiting and fixing, so that the stability of the lining cup in the bearing cavity is improved.
Drawings
In the drawings:
FIG. 1 is a cross-sectional view of a tube body of a gas chromatography liner tube of the present utility model;
FIG. 2 is a second cross-sectional view of the body of a gas chromatography liner tube of the present utility model;
FIG. 3 is a schematic view of the structure of a gas chromatography liner tube of the present utility model;
FIG. 4 is an enlarged view of portion A of FIG. 1 of a gas chromatography liner of the present utility model;
FIG. 5 is an enlarged view of portion B of FIG. 2 of a gas chromatography liner of the present utility model.
In the figure: 1. a tube body; 2. lining a cup; 201. a quartz cotton cushion block; 202. a support ring; 203. a chromatographic column connection port; 204. a load bearing cavity; 205. a sample injection needle; 3. a limit guide groove; 301. a guide block; 4. a plug block; 401. a plug-in groove; 402. a groove; 403. a positioning block; 404. a first spring; 405. a positioning groove; 406. a pull rope; 407. a pull ring; 5. a hollow cavity; 501. a slide block; 502. a second spring; 503. a push rod; 6. a seal ring; 601. a rubber ring.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.
Example 1:
Referring to fig. 1, 2, 3, 4 and 5, a gas chromatography lining tube, comprising a tube body 1, further comprising: the chromatographic column comprises a bearing cavity 204 and a chromatographic column connecting port 203 which are arranged in a tube body 1, wherein the chromatographic column connecting port 203 is communicated with the bearing cavity 204, a supporting part is arranged in the bearing cavity 204, a quartz cotton cushion block 201 is arranged on the supporting part, a lining cup 2 is arranged on the quartz cotton cushion block 201, and a sampling needle 205 is fixedly arranged on the top of the lining cup 2; the circumference of the plurality of groups of limit guide grooves 3 is equidistantly arranged on the inner wall of the pipe body 1; the guide block 301 is slidably connected in the limit guide groove 3 and fixedly connected with the outer wall of the liner cup 2, wherein a clamping assembly for limiting and fixing the guide block 301 is arranged on the supporting component, a hollow cavity 5 is formed between the inner wall and the outer wall of the pipe body 1, a sliding block 501 is slidably connected in the hollow cavity 5, a push rod 503 is fixedly connected on the sliding block 501, one end, away from the sliding block 501, of the push rod 503 is contacted with the guide block 301, and a second spring 502 is fixedly connected between the lower side of the sliding block 501 and the hollow cavity 5.
The supporting part comprises a supporting ring 202, the supporting ring 202 is positioned in a bearing cavity 204 and is fixedly connected with the inner wall of the pipe body 1, and the upper side of the supporting ring 202 is contacted with a quartz cotton cushion block 201.
The clamping assembly comprises a plug block 4 and a plug groove 401 arranged on the guide block 301, the plug block 4 corresponds to the plug groove 401, a positioning groove 405 is arranged in the guide block 301, the positioning groove 405 is communicated with the plug groove 401, a groove 402 is arranged on the plug block 4, a positioning block 403 is connected in a sliding manner in the groove 402, a first spring 404 is fixedly connected between the positioning block 403 and the groove 402, and the positioning block 403 is plugged in the positioning groove 405.
The pipe body further comprises a pull rope 406, the pull rope 406 is fixedly connected to the positioning block 403, and the pull rope 406 penetrates through the bottom of the plug block 4 and one end of the outer wall of the pipe body 1 is fixedly connected with a pull ring 407.
When the lining cup 2 is required to be taken out of the bearing cavity 204, firstly, a worker can pull the pull rope 406 to the side far away from the outer wall of the pipe body 1, the pull rope 406 drives the positioning block 403 to move outwards of the positioning groove 405 and compresses the first spring 404 until the positioning block 403 is completely retracted into the groove 402, and further limiting fixation of the lining cup 2 is relieved, at the moment, the compressed second spring 502 generates thrust to push the sliding block 501 to slide upwards in the hollow cavity 5, and meanwhile, the sliding block 501 pushes the guide block 301 to drive the lining cup 2 to synchronously move upwards through the push rod 503, so that the lining cup 2 can be automatically pushed out of the bearing cavity 204, and the worker can conveniently take out the lining cup 2 from the bearing cavity 204.
When the lining cup 2 is used, firstly, a worker inserts the guide block 301 on the outer wall of the lining cup 2 into the limit guide groove 3, then presses the lining cup 2 downwards, so that the lining cup 2 slides in the limit guide groove 3 through the guide block 301 and steadily moves towards the bearing cavity 204, further, the effect of limiting and guiding the lining cup 2 can be achieved, stability of the lining cup 2 in the bearing cavity 204 is guaranteed, after the guide block 301 moves downwards for a certain distance, the guide block 301 is contacted with the push rod 503, after the push rod 503 receives thrust, the slide block 501 is pushed to slide downwards in the hollow cavity 5, the spring II 502 is compressed, when the insert block 4 is inserted into the insert groove 401, the positioning block 403 is extruded to move towards the groove 402, the spring I404 is compressed until the positioning block 403 is completely retracted into the groove 402, at this time, the lining cup 2 is continuously pushed downwards, when the lining cup 2 contacts with the upper surface of the quartz cotton cushion block 201, the positioning block 403 is overlapped with the positioning groove 405 in parallel, further, the compressed spring I404 generates thrust, the positioning block 403 moves towards the groove 402, and then the positioning block 403 moves towards the outside the positioning groove 405, and the positioning block I is pushed into the positioning groove 405, and the lining cup 2 is further, the lining cup 2 is fixed in the insert groove 2, and the lining cup 2 is fixed in the bearing cavity 204, and the stability is improved.
Example 2:
Referring to fig. 2 and 5, a gas chromatography lining tube is basically the same as that of embodiment 1, and further, a sealing ring 6 is fixedly connected to the lower side of the guide block 301, and the sealing ring 6 is inserted into the hollow cavity 5; the positioning block 403 is pushed to be inserted into the positioning groove 405 by the thrust generated by the compressed first spring 404, so that the sealing ring 6 is inserted into the hollow cavity 5 when the liner cup 2 is limited and fixed, and then the opening at the top of the hollow cavity 5 can be closed, thereby ensuring the tightness in the bearing cavity 204 and not affecting the normal work.
The sealing ring comprises a sealing ring 6, and is characterized by further comprising a rubber ring 601, wherein the rubber ring 601 is fixedly connected to the outer wall of the sealing ring 6, and the outer wall of the rubber ring 601 is attached to the hollow cavity 5; when the sealing ring 6 is inserted into the hollow cavity 5, the sealing ring 6 is tightly attached to the hollow cavity 5 through the rubber ring 601, so that the sealing performance of the joint of the sealing ring 6 and the hollow cavity 5 is improved.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way, although the present utility model has been described in the preferred embodiments, and is not limited thereto.
Claims (6)
1. A gas chromatography lining tube comprising a tube body (1), characterized in that it further comprises: the chromatographic column comprises a tube body (1), a bearing cavity (204) and a chromatographic column connecting port (203), wherein the chromatographic column connecting port (203) is communicated with the bearing cavity (204), a supporting part is arranged in the bearing cavity (204), a quartz cotton cushion block (201) is arranged on the supporting part, a lining cup (2) is arranged on the quartz cotton cushion block (201), and a sampling needle head (205) is fixedly arranged on the top of the lining cup (2); the circumference of the plurality of groups of limit guide grooves (3) is equidistantly arranged on the inner wall of the pipe body (1); guide block (301), sliding connection is in spacing guide way (3), and with inside lining cup (2) outer wall fixed connection, wherein, be equipped with on the supporting part and be used for carrying out spacing fixed joint subassembly to guide block (301), cavity (5) have been seted up between the interior outer wall of body (1), sliding connection has slider (501) in cavity (5), fixedly connected with push rod (503) on slider (501), the one end that slider (501) was kept away from to push rod (503) contacts with guide block (301), fixedly connected with spring two (502) between slider (501) downside and cavity (5).
2. A gas chromatography lining tube according to claim 1, characterized in that the support member comprises a support ring (202), the support ring (202) is located in the bearing cavity (204) and fixedly connected with the inner wall of the tube body (1), and the upper side of the support ring (202) is in contact with the quartz cotton pad (201).
3. The liner tube in gas chromatography according to claim 1, wherein the clamping assembly comprises a plug block (4) and a plug groove (401) formed in the guide block (301), the plug block (4) corresponds to the plug groove (401), a positioning groove (405) is formed in the guide block (301), the positioning groove (405) is communicated with the plug groove (401), a groove (402) is formed in the plug block (4), a positioning block (403) is connected in the groove (402) in a sliding mode, a first spring (404) is fixedly connected between the positioning block (403) and the groove (402), and the positioning block (403) is inserted in the positioning groove (405).
4. A gas chromatography lining tube according to claim 3, further comprising a pull rope (406), wherein the pull rope (406) is fixedly connected to the positioning block (403), and the pull rope (406) penetrates through the bottom of the connecting block (4) and one end of the outer wall of the tube body (1) is fixedly connected with a pull ring (407).
5. A gas chromatography lining tube according to claim 1, characterized in that the underside of the guide block (301) is fixedly connected with a sealing ring (6), and the sealing ring (6) is inserted into the hollow cavity (5).
6. The gas chromatography lining tube according to claim 5, further comprising a rubber ring (601), wherein the rubber ring (601) is fixedly connected to the outer wall of the sealing ring (6), and the outer wall of the rubber ring (601) is attached to the hollow cavity (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322341162.9U CN220819925U (en) | 2023-08-29 | 2023-08-29 | Liner tube in gas chromatography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322341162.9U CN220819925U (en) | 2023-08-29 | 2023-08-29 | Liner tube in gas chromatography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220819925U true CN220819925U (en) | 2024-04-19 |
Family
ID=90676554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322341162.9U Active CN220819925U (en) | 2023-08-29 | 2023-08-29 | Liner tube in gas chromatography |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220819925U (en) |
-
2023
- 2023-08-29 CN CN202322341162.9U patent/CN220819925U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |