CN209745896U

CN209745896U - Adsorption tube automatic sample injector of thermal desorption instrument

Info

Publication number: CN209745896U
Application number: CN201920514263.2U
Authority: CN
Inventors: 许烷烷; 余光明
Original assignee: Fujian Jin An Energy Monitoring Technology Co Ltd
Current assignee: Fujian Jin An Energy Monitoring Technology Co Ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2019-12-06
Anticipated expiration: 2029-04-16

Abstract

The utility model discloses an adsorption tube automatic sample injector of thermal desorption instrument, which comprises a sample injector body, a working cavity is arranged in the sample injector body, a mounting seat is fixedly arranged at the middle end in the working cavity, fastening slots are arranged in the mounting seat at equal intervals, a supporting plate is embedded in the fastening slots, an end plate is fixedly arranged at the outer end of the supporting plate, a storage cavity is arranged in the supporting plate, pipe grooves are arranged in the storage cavity at equal intervals, adsorption tubes are embedded in the pipe grooves, and a sealing cap is connected at the position close to the end plate at one side end of the adsorption tubes, the utility model has the advantages of scientific and reasonable structure, safe and convenient use, convenient connection between the adsorption tubes and the sample injector body through the mounting seat, the fastening slots, the supporting plate and the end plate, and the placing mode can place a plurality of groups of adsorption tubes at a time, so that the instrument can analyze a plurality of groups of adsorption tubes, and the working efficiency of the instrument is improved.

Description

Adsorption tube automatic sample injector of thermal desorption instrument

Technical Field

The utility model relates to a thermal desorption appearance technical field specifically is a thermal desorption appearance's adsorption tube autosampler.

Background

The thermal desorption instrument is an instrument which can effectively desorb volatile and semi-volatile substances from a sample matrix or an adsorbent and transfer the volatile and semi-volatile substances to a gas chromatograph for analysis, and when the thermal desorption instrument is actually used, the thermal desorption instrument is usually combined with a sample injector, a thermal desorption tube is mainly a stainless steel or glass thermal desorption tube filled with one or more solid adsorbents, air or other gas samples pass through the thermal desorption tube, and almost all compounds are adsorbed in the thermal desorption tube;

The work efficiency of instrument when in actual use is lower because its inside has only singly or several groups desorption pipe to lead to the instrument, and current sample injector simultaneously is because it need be connected with the host computer usually when in actual use, and lacks the subassembly of connecting fixedly, leads to between sample injector and the host computer stability after being connected relatively poor, and then leads to easily taking place the separation between sample injector and the host computer, and then leads to the unable normal use that carries out of thermal desorption appearance.

SUMMERY OF THE UTILITY MODEL

The utility model provides an adsorption tube autosampler of thermal desorption appearance can effectively solve the current sample injector that proposes in the above-mentioned background art because it need be connected with the host computer usually when in-service use, and lack and connect fixed subassembly, lead to between sample injector and the host computer after being connected stability relatively poor, and then lead to easily taking place to separate between sample injector and the host computer, and then lead to the unable problem that carries out normal use of thermal desorption appearance.

In order to achieve the above object, the utility model provides a following technical scheme: an adsorption tube automatic sample injector of a thermal desorption instrument comprises a sample injector body, wherein a working chamber is arranged in the sample injector body, a shielding door is hinged to one side edge of the sample injector body, embedding grooves are formed in positions above and below one side edge of the working chamber, and embedding fixture blocks are arranged in positions, corresponding to the embedding grooves, of one side edge of the shielding door;

The utility model discloses a sample injector, including injector body, shielding door, slide block, guide chute, connecting plate, stripper plate top fixed mounting, the embedding of shield door department is kept away from to injector body one side limit portion and is installed and connect the sideboard, injector body bottom is installed with connecting sideboard homonymy department and is carried the thing board, carry the vertical spacing riser that is connected with of thing board one side end, carry thing board top surface both sides and all seted up the direction spout, the inside embedding of direction spout is installed and is connected the slider, slider top fixed mounting has the stripper plate, stripper plate one side limit portion is fixed to bond there is the rubber pad, the fastening (holding. .

Preferably, the inner diameter of the fitting groove is equal to the outer diameter of the fitting block.

Preferably, the fixing screw penetrates through the limiting vertical plate and is connected with a fixing nut at one end of the limiting vertical plate in a welding mode.

Preferably, the inside middle-end fixed mounting of work cavity has the mount pad, the fastening slot has been seted up to the inside impartial distance of mount pad, the layer board is installed to the inside embedding of fastening slot, layer board outside end fixed mounting has the end plate, the thing chamber is put to inside having seted up of layer board, put the equal equidistance of thing intracavity portion and seted up the tube seat, the inside all embedding of tube seat is installed and is adsorbed the pipe, an adsorption tube side end is close to end plate department and is connected with the sealing cap.

Preferably, the inner diameter of the fastening slots is equal to the thickness of the supporting plate, and the number of the fastening slots is ten.

preferably, the number of the tube groove and the number of the adsorption tubes are ten, and the inner arms of the tube groove are bonded with anti-skid rubber sheets.

compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. Be convenient for be connected between adsorption tube and the sample injector body through mount pad, fastening slot, layer board and end plate, the multiunit adsorption tube can be placed to this mode of putting simultaneously once to the instrument can analyze multiunit adsorption tube, has improved the work efficiency of instrument.

2. Carry out quick fixed connection through connecting sideboard, carrying thing board, spacing riser, direction spout, link block, stripper plate, rubber pad, fastening (holding) chuck and clamping screw between the injector body of being convenient for and the host computer, this fixed connection mode not only the simple operation is convenient for simultaneously, is convenient for fix according to the specification of host computer simultaneously, and application range is wide.

3. Through putting quick convenient placing of being convenient for between adsorption tube and the layer board of thing chamber, tube seat and sealing cap, when guaranteeing that the adsorption tube places the position accuracy, guarantee that the adsorption tube tip possesses higher leakproofness.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the installation structure of the adsorption tube of the present invention;

FIG. 3 is a schematic view of the installation structure of the extrusion plate of the present invention;

Reference numbers in the figures: 1. a sample injector body; 2. a working chamber; 3. a shield door; 4. a fitting groove; 5. embedding the fixture block; 6. a mounting seat; 7. fastening the slot; 8. a support plate; 9. an end plate; 10. a storage cavity; 11. a pipe groove; 12. an adsorption tube; 13. a sealing cap; 14. connecting the side plates; 15. a loading plate; 16. a limiting vertical plate; 17. a guide chute; 18. connecting the sliding block; 19. a pressing plate; 20. a rubber pad; 21. a fastening chuck; 22. and fixing the screw rod.

Detailed Description

the preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in fig. 1-3, the utility model provides a hot technical scheme, an adsorption tube automatic sample injector of thermal desorption appearance, including sample injector body 1, the work cavity 2 has been seted up to sample injector body 1 inside, 1 side portion of sample injector body articulates there is shielding door 3, 2 side portion of work cavity holds top and below position department and has all seted up gomphosis groove 4, 3 side portion of shielding door corresponds position department with gomphosis groove 4 and all installs gomphosis fixture block 5, the internal diameter in gomphosis groove 4 equals with the external diameter of gomphosis fixture block 5, it is inseparabler behind the joint between gomphosis fixture block 5 and the gomphosis groove 4, guarantee the stability of shielding door 3 and sample injector body 1 after being connected simultaneously.

The middle end inside the working chamber 2 is fixedly provided with a mounting seat 6, fastening slots 7 are arranged in the mounting seat 6 at equal intervals, a supporting plate 8 is embedded in the fastening slots 7, the inner diameter of each fastening slot 7 is equal to the thickness of the supporting plate 8, the number of the fastening slots 7 is ten, so that no deflection is generated between the fastening slots 7 and the supporting plate 8 after the movable connection, meanwhile, a plurality of groups of supporting plates 8 are convenient to place, the outer side end part of each supporting plate 8 is fixedly provided with an end plate 9, a storage cavity 10 is arranged in each supporting plate 8, a pipe groove 11 is arranged in each storage cavity 10 at equal intervals, adsorption pipes 12 are embedded in each pipe groove 11, the number of the pipe grooves 11 and the number of the adsorption pipes 12 are ten, anti-skid rubber sheets are bonded on the inner arms of the pipe grooves 11, so that more adsorption pipes 12 can be prevented at one time, the working efficiency of the instrument is improved, the end part of one side of the adsorption tube 12 is connected with a sealing cap 13 near the end plate 9, the edge part of one side of the sample injector body 1 far away from the shielding door 3 is embedded with a connecting side plate 14, and the bottom end of the sample injector body 1 and the connecting side plate 14 are arranged on the same side and provided with a loading plate 15.

Carry the vertical spacing riser 16 that is connected with of thing board 15 side end, the direction spout 17 has all been seted up to the 15 top surface both sides of thing board, connecting slide 18 is installed to the inside embedding of direction spout 17, connecting slide 18 top fixed mounting has stripper plate 19, 19 one side portion of stripper plate is fixed to bond has rubber pad 20, 19 opposite side portion of stripper plate installs fastening (holding) chuck 21, fastening (holding) chuck 21 one end fixedly connected with clamping screw 22, clamping screw 22 runs through welded connection between the fixing nut of spacing riser 16 and its one end, be convenient for be connected between clamping screw 22 and the fixing nut, and for the convenience of moving through fixing nut drive clamping screw 22 and fastening (holding) chuck 21.

the utility model discloses a theory of operation and use flow: in the installation process of the adsorption tube automatic sampler of the thermal desorption instrument before actual use, firstly, the sampler body 1 is arranged on a working table, then a main machine of the thermal desorption instrument is prevented from being arranged on a carrying plate 15, a connecting piece of a side plate of the main machine is connected with a connecting side plate 14 of a side plate of the sampler body 1, then the position of an extrusion plate 19 is adjusted according to the size of the main machine, when the extrusion plate 19 is adjusted, a fixed screw 22 is rotated, a fastening chuck 21 is driven to move through the fixed screw 22, then the fastening chuck 21 is used for driving the extrusion plate 19 to guide and move on the top surface of the carrying plate 15 along a connecting slide block 18 and a guide sliding groove 17, when a rubber gasket 20 at the inner side part of the extrusion plate 19 is tightly connected with the main machine, the continuous rotation of the fixed screw 22 is stopped at the moment, so that the position between the main machine and the sampler body 1 is fixed through the extrusion plate 19 and the rubber gasket 20, the fixing mode not only avoids the deviation between the main machine and the sample injector body 1 during operation, but also can adjust and fix the main machines with different specifications, and has strong applicability, thereby ensuring the stability between the sample injector body 1 and the main machine during use;

after the sample injector body 1 is fixedly connected with a host, the supporting plate 8 is arranged in the fastening slot 7 in the installation seat 6, then the adsorption tubes 12 are placed in the tube slots 11 in the object placing cavity 10, so that the adsorption tubes 12 can be quickly placed, the position accuracy of the adsorption tubes 12 after being placed can be ensured, after the adsorption tubes 12 are all placed in the corresponding tube slots 11, the sealing caps 13 are sleeved at one ends of the adsorption tubes 12 to ensure the sealing performance of the adsorption tubes 12 in use, and the installation mode is convenient and fast for installing the adsorption tubes 12, and meanwhile, as the supporting plate 8 and the tube slots 11 are ten in number, 100 groups of adsorption tubes 12 can be placed in the sample injector body 1 at a time, so that the working efficiency of the instrument is improved;

After the adsorption tubes 12 are all correspondingly placed, the shielding door 3 is closed at the moment, the embedding fixture block 5 at one side edge end of the shielding door 3 is clamped into the embedding groove 4 at the inner side edge end of the working chamber 2, so that the position of the shielding door 3 is limited, and the sealing performance of the sample injector body 1 in actual use is guaranteed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an adsorption tube autosampler of thermal desorption appearance, includes injector body (1), its characterized in that: a working chamber (2) is arranged in the sample injector body (1), a shielding door (3) is hinged to one side edge of the sample injector body (1), embedding grooves (4) are formed in positions above and below one side edge end of the working chamber (2), and embedding fixture blocks (5) are arranged in positions, corresponding to the embedding grooves (4), of one side edge end of the shielding door (3);

injector body (1) one side limit portion is kept away from shield door (3) and is located the embedding and install connection sideboard (14), injector body (1) bottom and connection sideboard (14) homonymy department install and carry thing board (15), carry the vertical spacing riser (16) that is connected with of thing board (15) one side end, it has all seted up direction spout (17) to carry thing board (15) top surface both sides, direction spout (17) inside embedding is installed and is connected slider (18), slider (18) top fixed mounting has stripper plate (19), stripper plate (19) one side limit portion is fixed to bond has rubber pad (20), fastening (21) are installed to stripper plate (19) opposite side limit portion, fastening (21) one end fixedly connected with clamping screw (22).

2. The sorbent tube autosampler of thermal desorption apparatus of claim 1, wherein: the inner diameter of the embedding groove (4) is equal to the outer diameter of the embedding fixture block (5).

3. The sorbent tube autosampler of thermal desorption apparatus of claim 1, wherein: the fixing screw rod (22) penetrates through the limiting vertical plate (16) and is connected with the fixing screw cap at one end of the limiting vertical plate in a welding mode.

4. The sorbent tube autosampler of thermal desorption apparatus of claim 1, wherein: the utility model discloses a storage device, including working chamber room (2), mount pad (6) are installed to inside middle-end fixed mounting of working chamber room (2), fastening slot (7) have been seted up to inside impartial distance of mount pad (6), layer board (8) are installed to inside embedding of fastening slot (7), layer board (8) outside end fixed mounting has end plate (9), layer board (8) are inside to have been seted up and to have been put thing chamber (10), put the inside impartial distance in thing chamber (10) and seted up tube seat (11), adsorption tube (12) are installed to inside all embedding in tube seat (11), adsorption tube (12) a side end is close to end plate (9) department and is connected with sealing.

5. The sorbent tube autosampler of a thermal desorption apparatus of claim 4, wherein: the inner diameter of the fastening slots (7) is equal to the thickness of the supporting plate (8), and the number of the fastening slots (7) is ten.

6. the sorbent tube autosampler of a thermal desorption apparatus of claim 4, wherein: the number of the pipe groove (11) and the number of the adsorption pipes (12) are ten, and the inner arms of the pipe groove (11) are bonded with anti-skid rubber sheets.