CN210401335U - Sample introduction device for gas chromatograph - Google Patents
Sample introduction device for gas chromatograph Download PDFInfo
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- CN210401335U CN210401335U CN201920863120.2U CN201920863120U CN210401335U CN 210401335 U CN210401335 U CN 210401335U CN 201920863120 U CN201920863120 U CN 201920863120U CN 210401335 U CN210401335 U CN 210401335U
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- sample
- servo motor
- gas chromatograph
- lead screw
- introduction device
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Abstract
The utility model discloses a sampling device for gas chromatograph, including the chromatograph body, chromatograph body up end rear side is equipped with the curb plate, the curb plate left and right sides all is equipped with baffle, left side first servo motor is installed in the baffle outside, first servo motor's output has the lead screw through first retarder connection. The utility model discloses convenient to use advances kind efficiently, effectively improves and advances kind the precision. The lead screw is driven to rotate through the work of the first servo motor, so that the nut seat is driven to move the fixing seat and the sampling needle to move left and right, the sampling needle is moved to the top of the sample placing device, the supporting plate and the sampling needle are driven to move downwards through the extension of the output end of the first hydraulic cylinder, the needle head of the sampling needle is inserted into the sample placing device and placed in the tube, the push rod of the sampling needle is driven to move upwards through the contraction of the output end of the second hydraulic cylinder, and the sampling liquid is extracted.
Description
Technical Field
The utility model relates to a chemical industry technical field specifically is a sampling device for gas chromatograph.
Background
The gas chromatograph is an instrument for analyzing and detecting each component in the mixed gas; is widely applied to the chemical industry. The most manual appearance that advances that adopts of current gas chromatograph sampling device for sampling efficiency is not high, need consume a large amount of time of staff and energy, is unfavorable for the accuracy of appearance of advancing simultaneously. Therefore, a sample injection device for a gas chromatograph is proposed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sampling device for gas chromatograph to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sampling device for gas chromatograph, includes the chromatograph body, chromatograph body up end rear side is equipped with the curb plate, the curb plate left and right sides all is equipped with the baffle, the left side first servo motor is installed in the baffle outside, first servo motor's output has the lead screw through first retarder connection, the lead screw passes through the bearing and connects in the left and right sides on the baffle, the left and right sides just lie in the equal fixedly connected with guide bar in both sides around the lead screw between the baffle, be equipped with the nut seat on lead screw and the guide bar, nut seat upper end is equipped with the fixing base, the fixing base is the type of falling U, first pneumatic cylinder is installed to the fixing base upper end, the output of first pneumatic cylinder stretches into the fixing base and is connected with the backup pad, the backup pad lower extreme is connected with the solid fixed cylinder that is used, Syringe needle and push rod, backup pad lower extreme mid-mounting has the second pneumatic cylinder, the output bottom of second pneumatic cylinder is connected in the top of push rod, chromatograph body upper end front side is equipped with introduction port and sample placer.
Preferably, the equal fixedly connected with slider in backup pad left and right sides, the spout that is used for the sliding connection slider is all seted up to the left and right sides wall in the fixing base.
Preferably, the connecting rods are provided with two groups and are respectively positioned at the left side and the right side of the fixed cylinder.
Preferably, a locking bolt is arranged on the front side surface of the fixed cylinder.
Preferably, the sample placing device comprises a case, a second servo motor is arranged in the case, the output end of the second servo motor is connected with a rotating shaft through a second reducer, the upper end of the rotating shaft is fixedly connected with a sample chassis, the upper end of the sample chassis is connected with a sample fixing disc through a connecting column, grooves are uniformly formed in the periphery of the upper surface of the sample chassis, and through holes corresponding to the grooves are uniformly formed in the periphery of the sample fixing disc.
Preferably, a rubber pad is arranged in the groove.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses convenient to use advances kind efficiently, effectively improves and advances kind the precision. The screw rod is driven to rotate by the work of the first servo motor, so that the nut seat moves left and right to drive the fixing seat and the sampling needle to move left and right, the sampling needle is moved to the upper part of the sample placing device, the supporting plate and the sampling needle are driven to move downwards by the extension of the output end of the first hydraulic cylinder, the needle head of the sampling needle is inserted into the sample placing tube of the sample placing device, the push rod of the sampling needle is driven to move upwards by the contraction of the output end of the second hydraulic cylinder, so that sample liquid is extracted, the sample chassis and the sample fixing disc are driven to rotate by the work of the second servo motor, the sample placing tube at the other position is rotated to the sampling needle, a sample at the other position is extracted, after the extraction is finished, the sampling needle is moved to the sampling port by the work of the first servo motor, the sampling needle is inserted into the sampling port by the work, the push rod is driven to move downwards to push the sample into the sample inlet, so that the sample feeding work is completed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the connection structure between the fixing base and the sample injection needle of the present invention;
FIG. 4 is a schematic structural view of the sample placing device of the present invention;
fig. 5 is a schematic view of the structure of the sample injection needle of the present invention.
In the figure: 1 chromatograph body, 2 curb plates, 3 baffles, 4 first servo motors, 5 first reducers, 6 lead screws, 7 guide rods, 8 nut seats, 9 fixing seats, 10 first hydraulic cylinders, 11 supporting plates, 12 connecting rods, 13 sample injection needles, 131 needle cylinders, 132 needle heads, 133 push rods, 14 fixing cylinders, 15 second hydraulic cylinders, 16 sample injection ports, 17 sample placement devices, 171 cabinets, 172 second servo motors, 173 second reducers, 174 rotating shafts, 175 sample chassis, 176 sample fixing disks, 177 grooves, 178 through holes, 179 rubber pads, 18 sliders, 19 sliding grooves and 20 locking bolts.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a sample introduction device for a gas chromatograph comprises a chromatograph body 1, wherein a side plate 2 is arranged on the rear side of the upper end surface of the chromatograph body 1, baffles 3 are arranged on the left side and the right side of the side plate 2, a first servo motor 4 is arranged on the outer side of the baffle 3 on the left side, the output end of the first servo motor 4 is connected with a screw rod 6 through a first speed reducer 5, the screw rod 6 is connected onto the baffles 3 on the left side and the right side through bearings, guide rods 7 are fixedly connected between the baffles 3 on the left side and the right side and positioned on the front side and the rear side of the screw rod 6, nut seats 8 are arranged on the screw rod 6 and the guide rods 7, a fixed seat 9 is arranged at the upper end of the nut seat 8, the fixed seat 9 is in an inverted U shape, a first hydraulic cylinder 10 is arranged at the upper end of the fixed seat 9, the output end of the first hydraulic cylinder 10 extends into, the injection needle 13 includes cylinder 131, syringe needle 132 and push rod 133, backup pad 11 lower extreme mid-mounting has second hydraulic cylinder 15, the output bottom of second hydraulic cylinder 15 is connected in the top of push rod 133, chromatograph body 1 upper end front side is equipped with introduction port 16 and sample placer 17.
Specifically, the equal fixedly connected with slider 18 in the backup pad 11 left and right sides, the spout 19 that is used for sliding connection slider 18 is all offered to the left and right sides wall in the fixing base 9, plays spacing effect to backup pad 11, prevents that backup pad 11 from taking place the slope at the in-process that reciprocates, influencing the work of injection needle 13 of lower extreme.
Specifically, the two groups of connecting rods 12 are respectively located at the left side and the right side of the fixed cylinder 14.
Specifically, the front side surface of the fixed cylinder 14 is provided with a locking bolt 20.
Specifically, sample placer 17 includes quick-witted case 171, be equipped with second servo motor 172 in the quick-witted case 171, the output of second servo motor 172 is connected with pivot 174 through second reduction gear 173, pivot 174 upper end fixedly connected with sample chassis 175, sample chassis 175 upper end is connected with sample fixed disk 176 through the spliced pole, evenly seted up recess 177 around the sample chassis 175 upper surface, evenly seted up through-hole 178 corresponding with recess 177 around on the sample fixed disk 176.
Specifically, a rubber pad 179 is arranged in the groove 177, so as to protect the sample placing tube.
Specifically, during use, the screw rod 6 is driven to rotate by the operation of the first servo motor 4, so that the nut seat 8 moves left and right to drive the fixing seat 9 and the sampling needle 13 to move left and right, the sampling needle 13 is moved above the sample placing device 17, the supporting plate 11 and the sampling needle 13 are driven to move downwards by the extension of the output end of the first hydraulic cylinder 10, the needle head 132 of the sampling needle 13 is inserted into the sample placing tube of the sample placing device 17, the push rod 133 of the sampling needle 13 is driven to move upwards by the contraction of the output end of the second hydraulic cylinder 15, so that sample liquid is extracted, the sample chassis 175 and the sample fixing disk 176 are driven to rotate by the operation of the second servo motor 172, the sample placing tube at another position is rotated to the sampling needle 13, the sample at another position is extracted, after the extraction is completed, the sampling needle 13 is moved to the sampling port 16 by the operation of the first servo motor, through the work of first pneumatic cylinder 10, insert injection needle 13 in the introduction port 16, through the extension of 15 output ends of second pneumatic cylinder, drive push rod 133 downwards, impel the sample in the introduction port 16, accomplish the introduction work.
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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a sampling device for gas chromatograph, includes chromatograph body (1), its characterized in that: the chromatograph body is characterized in that a side plate (2) is arranged on the rear side of the upper end face of the chromatograph body (1), baffles (3) are arranged on the left side and the right side of the side plate (2), a first servo motor (4) is installed on the outer side of the baffles (3), the output end of the first servo motor (4) is connected with a lead screw (6) through a first speed reducer (5), the lead screw (6) is connected to the left side and the right side of the baffles (3) through a bearing, guide rods (7) are fixedly connected between the baffles (3) and positioned on the front side and the rear side of the lead screw (6), nut seats (8) are arranged on the lead screw (6) and the guide rods (7), a fixing seat (9) is arranged at the upper end of each nut seat (8), the fixing seat (9) is in an inverted U shape, a first hydraulic cylinder (10) is installed at the upper end of the fixing seat (9), the output, the utility model discloses a chromatograph, including backup pad (11), connecting rod (12), supporting plate (11), injection needle (13), syringe needle (132) and push rod (133), backup pad (11) lower extreme mid-mounting has second hydraulic cylinder (15), the output bottom of second hydraulic cylinder (15) is connected in the top of push rod (133), chromatograph body (1) upper end front side is equipped with introduction port (16) and sample placer (17).
2. The sample introduction device for gas chromatograph according to claim 1, characterized in that: the supporting plate is characterized in that sliding blocks (18) are fixedly connected to the left side and the right side of the supporting plate (11), and sliding grooves (19) used for sliding the sliding blocks (18) are formed in the left side wall and the right side wall of the fixing seat (9).
3. The sample introduction device for gas chromatograph according to claim 1, characterized in that: the connecting rods (12) are provided with two groups and are respectively positioned at the left side and the right side of the fixed cylinder (14).
4. The sample introduction device for gas chromatograph according to claim 1, characterized in that: and a locking bolt (20) is arranged on the front side surface of the fixed cylinder (14).
5. The sample introduction device for gas chromatograph according to claim 1, characterized in that: sample placer (17) include quick-witted case (171), be equipped with second servo motor (172) in quick-witted case (171), the output of second servo motor (172) is connected with pivot (174) through second reduction gear (173), pivot (174) upper end fixedly connected with sample chassis (175), sample chassis (175) upper end is connected with sample fixed disk (176) through the spliced pole, evenly set up fluted (177) around sample chassis (175) upper surface, evenly set up through-hole (178) corresponding with recess (177) around sample fixed disk (176).
6. The sample introduction device for gas chromatograph according to claim 5, wherein: a rubber pad (179) is arranged in the groove (177).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863120.2U CN210401335U (en) | 2019-06-10 | 2019-06-10 | Sample introduction device for gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863120.2U CN210401335U (en) | 2019-06-10 | 2019-06-10 | Sample introduction device for gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210401335U true CN210401335U (en) | 2020-04-24 |
Family
ID=70348402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920863120.2U Active CN210401335U (en) | 2019-06-10 | 2019-06-10 | Sample introduction device for gas chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210401335U (en) |
-
2019
- 2019-06-10 CN CN201920863120.2U patent/CN210401335U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226000 Yangkou Chemical Industrial Park, Rudong County, Nantong City, Jiangsu Province Patentee after: Jiangsu Jiasheng Chemical Technology Co.,Ltd. Address before: 226000 Yangkou Chemical Industrial Park, Rudong County, Nantong City, Jiangsu Province Patentee before: NANTONG LEO CHEMICAL TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |