CN220363681U

CN220363681U - Sampling device of gas chromatograph

Info

Publication number: CN220363681U
Application number: CN202320537535.7U
Authority: CN
Inventors: 刘杰伟; 王红亮; 秦腆; 张玉香; 陈玉鹏
Original assignee: Qinghai Zhongxin Testing Technology Co ltd
Current assignee: Qinghai Zhongxin Testing Technology Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2024-01-19
Anticipated expiration: 2033-03-20

Abstract

The utility model relates to a gas chromatograph sampling device which comprises a protection box, wherein the left end and the right end of the inner side of the protection box are fixedly connected with first clamping blocks, the inner side of the protection box is fixedly connected with two vertical rods, the middle part of the outer side of each vertical rod is fixedly connected with a spring, one side of each spring, which is far away from each vertical rod, is fixedly connected with a second clamping block, a sampling tank is clamped and fixed between the second clamping block and the first clamping block, and one side of each second clamping block, which is far away from the sampling tank, is fixedly connected with an inclined block. This gas chromatograph sampling device puts into simultaneously between two first clamp splice and the second clamp splice of guard box inboard through two sample jars, and then pressing baffle drives the retaining ring and moves down and extrude the sloping block and be close to the joint with second clamp splice to sample jar one side fixedly, can be stable to sample jar centre gripping when removing the guard box, and guard box cooperation case lid can improve the barrier propterty of sample jar simultaneously.

Description

Sampling device of gas chromatograph

Technical Field

The utility model relates to the technical field of meteorological chromatographs, in particular to a sampling device of a gas chromatograph.

Background

The gas chromatograph is an instrument for carrying out qualitative and quantitative analysis on a multi-component complex mixture by utilizing a chromatographic separation technology and a detection technology, and takes gas as a mobile phase, and after a sample is injected into a sample injector by a micro-injector, the sample is carried by carrier gas and enters a filling column or a capillary chromatographic column.

The utility model discloses a sampling device for a gas chromatograph, which comprises a base and sampling equipment, wherein the sampling equipment is positioned above the base, a plurality of damping springs are arranged between the base and the sampling equipment, a moving mechanism is arranged at the bottom of the base, a threaded sleeve connected with the base in a rotating way is arranged on the base in a penetrating way, a first threaded rod and a second threaded rod are connected with the threaded sleeve in a threaded way, a limiting mechanism is arranged between the first threaded rod and the second threaded rod, a supporting disc is fixedly connected with the bottom of the second threaded rod, and a protecting mechanism fixed on the base is arranged on the outer side of the sampling equipment.

However, the upper side of the sampling device is directly exposed outside, so that the sampling device cannot be more comprehensively protected, and the sampling device can only be provided with one sampling device at each time, so that the condition of insufficient sampled samples can not meet the use requirement, and the gas chromatograph sampling device is provided for solving the problems.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a gas chromatograph sampling device which has the advantages of comprehensive protection, capability of carrying a plurality of sampling devices at the same time and the like, and solves the problems that the upper sides of the sampling devices are directly exposed outside and cannot protect the sampling devices more comprehensively, and the sampling devices can only be provided with one sampling device at each time and cannot be provided with the plurality of sampling devices at the same time, so that the sampled samples are insufficient.

In order to achieve the purpose that the protection is comprehensive and a plurality of sampling devices can be carried at the same time, the utility model provides the following technical scheme: the utility model provides a gas chromatograph sampling device, includes the guard box, the first clamp splice of both ends equal fixedly connected with about the guard box inboard, two pole setting of guard box inboard fixedly connected with, the middle part fixedly connected with spring in the pole setting outside, one side fixedly connected with second clamp splice of pole setting is kept away from to the spring, the centre gripping is fixed with the sample jar between second clamp splice and the first clamp splice, one side fixedly connected with sloping block of sample jar is kept away from to the second clamp splice, the guard box upside is pegged graft and is had fixed subassembly.

The fixed subassembly includes the case lid, the equal fixedly connected with fixture block in both ends about the case lid downside, the middle part sliding connection of case lid upside has the movable rod, movable rod upside fixedly connected with baffle, the outer wall of movable rod downside has fixedly cup jointed the retaining ring.

Further, the left side and the right side of the protection box are fixedly connected with connecting plates, and threaded sleeves are fixedly sleeved on the inner walls of the connecting plates.

Further, threaded rod is connected to thread bush inner wall threaded connection, the fixed sucking disc that is provided with of threaded rod downside.

Further, four rollers are connected to the lower surface of the protection box in a rolling manner, and the four rollers are respectively connected to four corners of the lower surface of the protection box.

Further, a fixed groove is formed in the middle of the lower side of the protection box, and a protruding block is fixedly connected to the lower side of the movable rod.

Further, clamping grooves matched with the clamping blocks are formed in the left end and the right end of the upper side of the protection box, and first through holes are formed in the left side and the right side of the baffle.

Further, grooves are formed in the left end and the right end of the upper side of the box cover, and the two grooves are respectively formed in the lower side of the first through hole.

Further, the upper ends of the vertical rods are mutually attached to the box cover.

Compared with the prior art, the utility model provides a gas chromatograph sampling device, which has the following beneficial effects:

1. this gas chromatograph sampling device puts into simultaneously between two first clamp splice and the second clamp splice of guard box inboard through two sample jars, and then pressing baffle drives the retaining ring and moves down and extrude the sloping block and be close to the joint with second clamp splice to sample jar one side fixedly, can be stable to sample jar centre gripping when removing the guard box, and guard box cooperation case lid can improve the barrier propterty of sample jar simultaneously.

2. This gas chromatograph sampling device inserts between first clamp splice and the second clamp splice through the sample jar and presses the laminating of trailing shield downside at the case lid upper surface simultaneously with the mounting insert first through-hole and recess inside fixed, the retaining ring removes from the sloping block surface when preventing to remove, has solved sampling equipment upside and has directly exposed in the outside, can't more comprehensive play the guard action to sampling equipment can only take a plurality of sampling equipment of unable simultaneous zone at every turn, leads to the problem of the condition of the sample of sampling not enough.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present utility model;

FIG. 2 is a front view of the structure of the present utility model;

fig. 3 is a top view of the structure of the present utility model.

In the figure: 1 a protection box, 2 a connecting plate, 3 a thread bush, 4 a threaded rod, 5 a sucker, 6 a roller, 7 a box cover, 8 a movable rod, 9 a baffle, 10 a first through hole, 11 a groove, 12 a clamping block, 13 a clamping groove, 14 a first clamping block, 15 a sampling tank, 16 a retainer ring, 17 a second clamping block, 18 an oblique block, 19 a convex block, 20 a fixed groove, 21 a vertical rod and 22 springs.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

referring to fig. 1-3, a sampling device for a gas chromatograph in this embodiment includes a protection box 1, four rollers 6 are connected to the surface of the lower side of the protection box 1 in a rolling manner, four rollers 6 are respectively connected to four corners of the surface of the lower side of the protection box 1, a fixing groove 20 is formed in the middle of the lower side of the protection box 1, first clamping blocks 14 are fixedly connected to the left end and the right end of the inner side of the protection box 1, two upright posts 21 are fixedly connected to the inner side of the protection box 1, springs 22 are fixedly connected to the middle of the outer side of the upright posts 21, a second clamping block 17 is fixedly connected to one side of the springs 22 away from the upright posts 21, a sampling tank 15 is fixedly clamped between the second clamping block 17 and the first clamping block 14, an inclined block 18 is fixedly connected to one side of the second clamping block 17 away from the sampling tank 15, and a fixing assembly is inserted to the upper side of the protection box 1.

The fixed subassembly includes case lid 7, laminating each other between pole setting 21 upper end and the case lid 7, the equal fixedly connected with fixture block 12 of both ends about the case lid 7 downside, the draw-in groove 13 that matches with fixture block 12 has all been seted up to both ends about the guard box 1 upside, the middle part sliding connection of case lid 7 upside has movable rod 8, the fixed connection lug 19 of movable rod 8 downside, the baffle 9 of movable rod 8 upside fixedly connected with, the inside first through-hole 10 that has all seted up in baffle 9 left and right sides, recess 11 has all been seted up at both ends about the case lid 7 upside, two recesses 11 set up respectively in first through-hole 10 downside, retaining ring 16 has been cup jointed to the outer wall of movable rod 8 downside.

In this embodiment, after the baffle 9 is pulled upwards to drive the retainer ring 16 and the inclined block 18 to separate from each other, the upright rod 21 assumes that the connected spring 22 rebounds from the compressed state to drive the second clamping block 17 to be far away from the sampling tank 15, so as to reduce the clamping force on the sampling tank 15, and thus the sampling tank 15 can be moved out from the inner side of the protection box 1 for sampling and collection.

Embodiment two:

referring to fig. 1-2, on the basis of the first embodiment, the device comprises a connecting plate 2 fixedly connected to the left side and the right side of a protection box 1, a threaded sleeve 3 is fixedly sleeved on the inner wall of the connecting plate 2, a threaded rod 4 is in threaded connection with the inner wall of the threaded sleeve 3, and a sucking disc 5 is fixedly arranged on the lower side of the threaded rod 4.

By adopting the technical scheme, the threaded rod 4 can rotate and move downwards in the thread of the thread bush 3, and the sucking disc 5 is attached to the ground to fix the protection box 1 to prevent movement.

The working principle of the embodiment is as follows:

the two sampling tanks 15 are placed between the first clamping block 14 and the second clamping block 17 on the inner side of the protection box 1, the clamping blocks 12 on the lower side of the box cover 7 are aligned with the clamping grooves 13 and are inserted and fixed, at the moment, the movable rod 8 is perpendicular to the middle part on the inner side of the protection box 1, after the baffle 9 is pressed downwards to apply pressure, the baffle 9 lower side retaining ring 16 moves downwards to be attached to the surface of the inclined block 18, as the inclined block 18 continues to apply pressure to the retaining ring 16, the second clamping block 17 is driven to press the spring 22 to the side of the sampling tank 15 to be in a compressed state, the second clamping block 17 is matched with the first clamping block 14 to clamp and fix the left side and the right side of the surface of the sampling tank 15, the lug 19 on the lower side of the movable rod 8 is inserted into the fixing groove 20 and fixed inside, the lower side of the baffle 9 is attached to the upper surface of the box cover 7, meanwhile, the fixing piece is inserted into the first through hole 10 and the groove 11 to be fixed inside, the retaining ring 16 moves upwards and downwards on the surface of the inclined block 18 when the movement is prevented, the rolling wheel 6 connected by the lower side of the protection box 1 is driven to move downwards, the threaded rod 4 rotates the inner wall of the threaded sleeve 3 to move to the threaded sleeve 5 to the protection box to be compressed, and move is prevented from attaching to the ground by the sucking disc 5.

The beneficial effects of the embodiment are as follows:

this gas chromatograph sampling device, put into simultaneously between two first clamp splice 14 and the second clamp splice 17 of guard box 1 inboard through two sample tanks 15, press down baffle 9 and drive retaining ring 16 and move down and extrude sloping block 18 and be close to the joint with second clamp splice 17 to sample tank 15 one side fixedly, can be stable to sample tank 15 centre gripping when removing guard box 1, guard box 1 cooperation case lid 7 can improve the barrier propterty of sample tank 15 simultaneously.

This gas chromatograph sampling device inserts between first clamp splice 14 and the second clamp splice 17 through sample jar 15 backplate 9 presses the downside laminating at the case lid 7 upper surface simultaneously with the mounting insert first through-hole 10 and the inside fixed of recess 11, retaining ring 16 from sloping block 18 surface removal when preventing to remove, has solved that the sampling equipment upside is direct exposes in the outside, can't more comprehensive play the guard action to the sampling equipment can only take a plurality of sampling equipment of unable simultaneous belt at every turn, leads to the problem of the condition of the sample of sampling not enough.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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

1. The utility model provides a gas chromatograph sampling device, includes guard box (1), its characterized in that: the device is characterized in that the left end and the right end of the inner side of the protection box (1) are fixedly connected with first clamping blocks (14), the inner side of the protection box (1) is fixedly connected with two vertical rods (21), the middle part of the outer side of each vertical rod (21) is fixedly connected with a spring (22), one side, far away from each vertical rod (21), of each spring (22) is fixedly connected with a second clamping block (17), a sampling tank (15) is clamped and fixed between each second clamping block (17) and each first clamping block (14), one side, far away from each sampling tank (15), of each second clamping block (17) is fixedly connected with an inclined block (18), and a fixing assembly is inserted into the upper side of the protection box (1);

the fixing assembly comprises a box cover (7), clamping blocks (12) are fixedly connected to the left end and the right end of the lower side of the box cover (7), a movable rod (8) is slidably connected to the middle of the upper side of the box cover (7), a baffle (9) is fixedly connected to the upper side of the movable rod (8), and a check ring (16) is fixedly sleeved on the outer wall of the lower side of the movable rod (8).

2. The gas chromatograph sampling device of claim 1, wherein: the left side and the right side of the protection box (1) are fixedly connected with a connecting plate (2), and the inner wall of the connecting plate (2) is fixedly sleeved with a threaded sleeve (3).

3. The gas chromatograph sampling device of claim 2, wherein: the inner wall threaded sleeve (3) is connected with a threaded rod (4) in a threaded mode, and a sucker (5) is fixedly arranged on the lower side of the threaded rod (4).

4. The gas chromatograph sampling device of claim 2, wherein: the protection box (1) is characterized in that four rollers (6) are connected to the lower side surface of the protection box (1) in a rolling manner, and the four rollers (6) are respectively connected to four corners of the lower side surface of the protection box (1).

5. The gas chromatograph sampling assembly of claim 4, wherein: the middle part of guard box (1) downside has seted up fixed slot (20), movable rod (8) downside fixedly connected with lug (19).

6. The gas chromatograph sampling assembly of claim 5, wherein: clamping grooves (13) matched with the clamping blocks (12) are formed in the left end and the right end of the upper side of the protection box (1), and first through holes (10) are formed in the left side and the right side of the baffle (9).

7. The gas chromatograph sampling device of claim 1, wherein: grooves (11) are formed in the left end and the right end of the upper side of the box cover (7), and the two grooves (11) are respectively arranged on the lower side of the first through hole (10).

8. The gas chromatograph sampling assembly of claim 7, wherein: the upper ends of the vertical rods (21) are mutually attached to the box cover (7).