CN214252156U

CN214252156U - Full-automatic headspace sample injector

Info

Publication number: CN214252156U
Application number: CN202023194031.5U
Authority: CN
Inventors: 沈伟敏; 陈惠香; 林慧娟
Original assignee: Fujian Tianjiao Chemical Materials Co ltd
Current assignee: Fujian Tianjiao Chemical Materials Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-09-21
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to the technical field of gas detection, in particular to a full-automatic headspace sample injector, which can conveniently and quickly carry out automatic sample injection and automatic discharging, saves time and labor, improves the working efficiency and the practicability; including the headspace sample injector body, step motor and multiunit feeding bottle, the standing groove has been seted up to the top intermediate position of headspace sample injector body, step motor installs in the diapire of standing groove, step motor's output stretches out outside rotatable coupling and has the feeding dish, communicating feed inlet about the top outer circumference of feeding dish evenly is provided with the multiunit, the material loading subassembly is installed on the right side on headspace sample injector body top, pressing component and ejecting subassembly, the material loading subassembly, pressing component and ejecting subassembly are located the right side of feeding dish respectively, rear side and left side, the top rear side of headspace sample injector is seted up and is equipped with the cylindrical groove relative from top to bottom with the feed inlet, the middle zone of cylindrical groove diapire is provided with the feeding syringe needle, the outside of feeding syringe needle is provided with the promotion subassembly.

Description

Full-automatic headspace sample injector

Technical Field

The utility model relates to a gaseous detection technology field specifically is a full-automatic headspace sample injector.

Background

A headspace sample injector is a convenient and fast sample pretreatment method in gas chromatography, and is characterized in that a sample to be detected is placed in a closed container, volatile components are volatilized from a sample matrix through heating, balance is achieved in a gas-liquid (or gas-solid) phase, and top gas is directly extracted for chromatographic analysis, so that the components and the content of the volatile components in the sample are detected. The headspace sampling technology can avoid a tedious and tedious sample pretreatment process, avoid interference of an organic solvent on analysis, and reduce pollution to a chromatographic column and a sampling port. The instrument can be connected with gas chromatographs of various models at home and abroad.

The existing headspace sample injector is generally manually operated during sample injection, a sample injection bottle is manually connected with a headspace sample injector body so as to inject a liquid in the sample injection bottle, and after the sample injection is finished, the sample injection bottle is manually separated from the headspace sample injector body so as to repeatedly operate for multiple sample injection; when the device is used, manual operation wastes time and labor, the working efficiency is reduced, and the practicability is poor.

To this end, a fully automatic headspace sampler is proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a full-automatic headspace sample injector, convenient and fast has carried out autoinjection and automatic discharging, and labour saving and time saving has improved work efficiency, has improved the practicality to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a full-automatic headspace sample injector comprises a headspace sample injector body, a stepping motor and a plurality of groups of feed bottles, wherein a placing groove is formed in the middle position of the top end of the headspace sample injector body, the stepping motor is installed on the bottom wall of the placing groove, the output end of the stepping motor extends out of the outer part and is rotatably connected with a feed disc, a plurality of groups of feed inlets which are communicated up and down are uniformly arranged on the outer circumference of the top end of the feed disc, a feed assembly, a pressing assembly and an ejection assembly are installed on the right side of the top end of the headspace sample injector body, the feed assembly, the pressing assembly and the ejection assembly are respectively positioned on the right side, the rear side and the left side of the feed disc, a cylindrical groove which is opposite to the feed inlets up and down is formed in the rear side of the top end of the headspace sample injector body, a feed needle head is arranged in the middle area of the bottom wall of the cylindrical groove, a pushing assembly is arranged on the outer side of the feed needle head, and a discharge groove which is opposite to the ejection assembly is formed in the left side of the headspace sample injector body, the discharge gate has been seted up to the front end of headspace sample injector body, the back of discharge gate heels to incline upwards and communicates with each other with the blown down tank, multiunit feed bottle all includes bottle and rubber cap, the outside top of bottle is provided with the hoop sheet, the multiunit the ring channel has all been seted up at the inboard top of feed inlet, and the annular magnet that matches with the hoop sheet is all installed to the inboard of multiunit ring channel.

Preferably, the material loading subassembly includes right branch vaulting pole, feeder hopper and electric putter, the outside cover of right branch vaulting pole is equipped with first diaphragm, the left side cover of first diaphragm is located the outside of feeder hopper, the feeder hopper is located the feed inlet directly over, electric putter installs in the left end bottom of right branch vaulting pole, and electric putter's left side output is connected with the baffle, the top of baffle is contradicted with the top of feeder hopper.

Preferably, the pressing assembly comprises a rear supporting rod and a second electric push rod, a second transverse plate is installed at the top of the front end of the rear supporting rod, the front side of the second transverse plate is sleeved on the outer side of the second electric push rod, and a first push rod which is opposite to the feed inlet from top to bottom is installed at the bottom end of the second electric push rod.

Preferably, the ejection assembly comprises a left support rod and a third electric push rod, a third transverse plate is installed at the top of the right end of the left support rod, the right side of the third transverse plate is sleeved on the outer side of the third electric push rod, and a second push rod which is opposite to the feed inlet from top to bottom is installed at the bottom end of the third electric push rod.

Preferably, the promotion subassembly includes two sets of push cylinder and annular roof, two sets of recesses have been seted up to the diapire in cylindrical groove, two sets of push cylinder install respectively in two sets of recesses, the annular roof sets up in the outside of feeding syringe needle, the left side and the rear side in annular roof bottom are installed respectively to the top of two sets of push cylinder.

Preferably, the diameter of the annular top plate is smaller than the inner diameter of the feeding hole, and the annular top plate extends into the feeding hole when located at the highest position.

Preferably, the collecting box is installed at the front end of the headspace sample injector body and is opposite to the discharge hole.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a full-automatic headspace sample injector, when advancing the appearance, turn on step motor, step motor drives the feed tray and rotates, put into the multiunit feed inlet of feed tray top through the material loading subassembly multiunit feed bottle, the outside top of bottle is provided with the iron ring piece, the ring channel has all been seted up at the inboard top of multiunit feed inlet, the annular magnet that matches with the iron ring piece is all installed to the inboard of multiunit ring channel, multiunit feed bottle falls into respectively to multiunit feed inlet, the iron ring piece adsorbs with the annular magnet mutually, thereby fixed feed bottle, along with the rotation of feed tray, when feed bottle moves to the below of pressing assembly, push down feed bottle to the cylindrical groove through pressing the subassembly, the feeding syringe needle head of cylindrical groove bottom wall inserts to the bottle from the bottom of the rubber cap of feed bottle, thereby advance material, after the feeding is accomplished, through opening the promotion subassembly advance feed bottle after the feeding is accomplished to advance into the feed inlet, make iron ring piece and annular magnet adsorb mutually, continue to fix the feed bottle, along with the feed tray removes, removes as for ejecting subassembly under, pushes down through ejecting subassembly, pushes away empty feed bottle to the blown down tank, consequently through the aforesaid setting, convenient and fast has carried out autoinjection and automatic discharging, labour saving and time saving has improved work efficiency, has improved the practicality.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the left side cross-sectional structure of the present invention;

fig. 3 is an enlarged schematic view of a portion a of fig. 2 according to the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the feeding bottle of the present invention located in the feeding port.

In the figure: 1. a headspace sample injector body; 2. a stepping motor; 3. a feed bottle; 4. a feed tray; 5. a feed inlet; 6. a feeding needle head; 7. a discharge chute; 8. a discharge port; 9. a bottle body; 10. a rubber cap; 11. a sheet of iron rings; 12. a ring magnet; 13. a right support bar; 14. a feed hopper; 15. a first electric push rod; 16. A first transverse plate; 17. a baffle plate; 18. a rear support bar; 19. a second electric push rod; 20. a second transverse plate; 21. a first push rod; 22. a left support bar; 23. a third electric push rod; 24. a second push rod; 25. A push cylinder; 26. an annular top plate; 27. a material receiving box; 28. and a third transverse plate.

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 to 4, the present invention provides a technical solution: a full-automatic headspace sample injector comprises a headspace sample injector body 1, a stepping motor 2 and a plurality of groups of feed bottles 3, wherein a standing groove is formed in the middle position of the top end of the headspace sample injector body 1, the stepping motor 2 is installed on the bottom wall of the standing groove, the output end of the stepping motor 2 extends out of the outer portion and is rotatably connected with a feed disc 4, a plurality of groups of feed inlets 5 which are communicated up and down are uniformly formed in the outer circumference of the top end of the feed disc 4, a feed assembly, a pressing assembly and an ejection assembly are installed on the right side of the top end of the headspace sample injector body 1, the feed assembly, the pressing assembly and the ejection assembly are respectively positioned on the right side, the rear side and the left side of the feed disc 4, a cylindrical groove which is vertically opposite to the feed inlets 5 is formed in the rear side of the top end of the headspace sample injector body 1, a feed needle 6 is arranged in the middle area of the bottom wall of the cylindrical groove, and a pushing assembly is arranged outside the feed needle 6, a discharge chute 7 opposite to the ejection assembly is arranged on the left side of the top end of the headspace sample injector body 1, a discharge hole 8 is arranged at the front end of the headspace sample injector body 1, the rear side of the discharge hole 8 is communicated with the discharge groove 7 in an inclined upward manner, the plurality of groups of feeding bottles 3 comprise bottle bodies 9 and rubber caps 10, the rubber caps 10 can be inserted by the feeding needles 6, the top of the outer side of the bottle body 9 is provided with an iron ring piece 11, the tops of the inner sides of the plurality of groups of the feed inlets 5 are all provided with annular grooves, the inner sides of the plurality of groups of the annular grooves are all provided with annular magnets 12 matched with the iron ring pieces 11, when the sample feeding bottle is positioned in the feed inlet 5, the sample feeding bottle is adsorbed by the iron ring pieces 11 and the annular magnets 12, fixed to advancing the appearance bottle, through the aforesaid setting, convenient and fast has carried out autoinjection and automatic discharging, and labour saving and time saving has improved work efficiency, has improved the practicality.

The material loading subassembly includes right branch vaulting pole 13, feeder hopper 14 and first electric putter 15, the outside cover of right branch vaulting pole 13 is equipped with first diaphragm 16, the left side cover of first diaphragm 16 is located the outside of feeder hopper 14, feeder hopper 14 is located feed inlet 5 directly over, first electric putter 15 is installed in the left end bottom of right branch vaulting pole 13, and first electric putter 15's left side output is connected with baffle 17, the top of baffle 17 is contradicted with the top of feeder hopper 14, puts feed bottle 3 upside down in feeder hopper 14, closes feed hopper 14's bottom through baffle 17, and control about the reciprocal drive baffle 17 through first electric putter 15 to make feed bottle 3 in the feeder hopper 14 fall out and block, make feed bottle 3 fall into to feed inlet 5 in.

The pressing assembly comprises a rear supporting rod 18 and a second electric push rod 19, a second transverse plate 20 is installed at the top of the front end of the rear supporting rod 18, the front side of the second transverse plate 20 is sleeved on the outer side of the second electric push rod 19, and a first push rod 21 which is opposite to the feed port 5 in the vertical direction is installed at the bottom end of the second electric push rod 19; when the feeding bottle 3 is located under the pressing component, the second electric push rod 19 is electrically connected to the opening, the second electric push rod 19 drives the first push rod 21 to move downwards, the first push rod 21 pushes the feeding bottle 3 downwards, so that the rubber cap 10 is pushed against the feeding needle 6 and is inserted into the bottle body 9 through the feeding needle 6 to deliver samples.

The ejection assembly comprises a left support rod 22 and a third electric push rod 23, a third transverse plate 28 is installed at the top of the right end of the left support rod 22, the right side of the third transverse plate 28 is sleeved on the outer side of the third electric push rod 23, a second push rod 24 which is opposite to the feed inlet 5 up and down is installed at the bottom end of the third electric push rod 23, the third electric push rod 23 is electrically connected with the third electric push rod 23 through opening, the third electric push rod 23 drives the second push rod 24 to move down, and the second push rod 24 pushes the hollow feed bottle 3 located in the feed inlet 5 into the discharge chute 7.

Promote the subassembly including two sets of push cylinder 25 and annular roof 26, two sets of recesses have been seted up to the diapire in cylindrical groove, two sets of push cylinder 25 are installed respectively in two sets of recesses, annular roof 26 sets up in the outside of feeding syringe needle 6, the left side and the rear side in annular roof 26 bottom are installed respectively to two sets of push cylinder 25's top, accomplish the back in advancing the kind, open two sets of push cylinder 25, and two sets of push cylinder 25 drive annular roof 26 and move up to make the feeding bottle 3 of accomplishing the kind of advance move up, push the kind bottle to feed inlet 5 in, make iron ring piece 11 adsorb with annular magnet 12 mutually, continue to fix feeding bottle 3, consequently made things convenient for the bottle of advancing the kind to accomplish and pushed into feed inlet 5.

The diameter of annular roof 26 is less than the internal diameter of feed inlet 5, and annular roof 26 stretches into in feed inlet 5 when being located the highest position, has guaranteed to advance the kind bottle and can receive the promotion that promotes the subassembly and enter into in the discharge gate 8 to make iron ring piece 11 adsorb mutually with annular magnet 12, fix feed bottle 3.

Collecting box 27 is installed to the front end of headspace sample injector body 1, collecting box 27 with discharge gate 8 is relative, through collecting box 27's setting, collects empty sample injection bottle.

The using method comprises the following steps: when sampling is carried out, the stepping motor 2 is turned on, the stepping motor 2 drives the feeding disc 4 to rotate, the feeding bottles 3 are placed in the feeding hopper 14 upside down, the bottom of the feeding hopper 14 is closed through the baffle 17, the baffle 17 is driven to move left and right through the reciprocation of the first electric push rod 15, so that the feeding bottles 3 in the feeding hopper 14 fall out and are blocked, the feeding bottles 3 fall into the multiple groups of feeding holes 5 at the top end of the feeding disc 4, the feeding is facilitated, the feeding bottles 3 comprise bottle bodies 9 and rubber caps 10, iron ring sheets 11 are arranged at the top outer sides of the bottle bodies 9, annular grooves are formed at the top inner sides of the multiple groups of feeding holes 5, annular magnets 12 matched with the iron ring sheets 11 are arranged at the inner sides of the multiple groups of annular grooves, the multiple groups of feeding bottles 3 fall into the multiple groups of feeding holes 5 respectively, the iron ring sheets 11 are adsorbed with the annular magnets 12, so that the feeding bottles 3 are fixed, when the feeding bottle 3 moves to the lower part of the pressing component, the second electric push rod 19 is opened and electrically connected, the second electric push rod 19 drives the first push rod 21 to move downwards, the first push rod 21 presses the feeding bottle 3 downwards, the rubber cap 10 is pushed against the feeding needle 6, the feeding needle 6 is inserted into the bottle body 9 for sample delivery, so that feeding is performed, after the feeding is completed, the two groups of push cylinders 25 are opened, the two groups of push cylinders 25 drive the annular top plate 26 to move upwards, so that the feeding bottle 3 which completes sample delivery moves upwards, the sample delivery bottle is pushed into the feeding port 5, the iron ring piece 11 is adsorbed with the annular magnet 12, the feeding bottle 3 is continuously fixed and then continuously moves along with the feeding disc 4, when the feeding bottle moves to the position right below the ejecting component, the third electric push rod 23 which is electrically connected is opened, the third electric push rod 23 drives the second push rod 24 to move downwards, the second rod 24 pushes the feeding bottle 3 which is hollow in the feeding port 5 into the discharge chute 7, and then falls into the receiving box 27 through the inclined discharging port 8.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

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

1. The utility model provides a full-automatic headspace sample injector which characterized in that: the sample injector comprises a headspace sample injector body (1), a stepping motor (2) and a plurality of groups of feeding bottles (3), wherein a placing groove is formed in the middle position of the top end of the headspace sample injector body (1), the stepping motor (2) is installed on the bottom wall of the placing groove, the output end of the stepping motor (2) extends out of an external rotatable feeding disc (4), a plurality of groups of feeding ports (5) which are communicated up and down are uniformly arranged on the outer circumference of the top end of the feeding disc (4), a feeding assembly, a pressing assembly and an ejection assembly are installed on the right side of the top end of the headspace sample injector body (1), the feeding assembly, the pressing assembly and the ejection assembly are respectively positioned on the right side, the rear side and the left side of the feeding disc (4), a cylindrical groove which is vertically opposite to the feeding port (5) is formed in the rear side of the top end of the headspace sample injector body (1), and a feeding needle head (6) is arranged in the middle area of the bottom wall of the cylindrical groove, the outside of feeding syringe needle (6) is provided with the promotion subassembly, and blown down tank (7) relative with ejecting subassembly are seted up on the top left side of headspace sample injector body (1), discharge gate (8) have been seted up to the front end of headspace sample injector body (1), the back of discharge gate (8) is leaned on to communicate with each other with blown down tank (7), multiunit feed bottle (3) all include bottle (9) and rubber cap (10), the outside top of bottle (9) is provided with iron ring piece (11), multiunit the ring channel has all been seted up at the inboard top of feed inlet (5), and annular magnet (12) assorted with iron ring piece (11) are all installed to the inboard of multiunit ring channel.

2. The fully automatic headspace sampler of claim 1, wherein: the material loading subassembly includes right branch vaulting pole (13), feeder hopper (14) and electric putter (15), the outside cover of right branch vaulting pole (13) is equipped with first diaphragm (16), the left side cover of first diaphragm (16) is located the outside of feeder hopper (14), feeder hopper (14) are located feed inlet (5) directly over, electric putter (15) are installed in the left end bottom of right branch vaulting pole (13), and the left side output of electric putter (15) is connected with baffle (17), the top of baffle (17) is contradicted with the top of feeder hopper (14).

3. The fully automatic headspace sampler of claim 2, wherein: the pressing assembly comprises a rear supporting rod (18) and a second electric push rod (19), a second transverse plate (20) is installed at the top of the front end of the rear supporting rod (18), the front side of the second transverse plate (20) is sleeved on the outer side of the second electric push rod (19), and a first push rod (21) which is opposite to the feed inlet (5) from top to bottom is installed at the bottom end of the second electric push rod (19).

4. The fully automatic headspace sampler according to claim 3, wherein: the ejection assembly comprises a left support rod (22) and a third electric push rod (23), a third transverse plate (28) is installed at the top of the right end of the left support rod (22), the right side of the third transverse plate (28) is sleeved on the outer side of the third electric push rod (23), and a second push rod (24) which is opposite to the feed inlet (5) from top to bottom is installed at the bottom end of the third electric push rod (23).

5. The fully automatic headspace sampler according to claim 4, wherein: the promotion subassembly includes two sets of push cylinder (25) and annular roof (26), two sets of recesses have been seted up to the diapire in cylindrical groove, two sets of push cylinder (25) are installed respectively in two sets of recesses, annular roof (26) set up in the outside of feeding syringe needle (6), the left side and the rear side in annular roof (26) bottom are installed respectively on the top of two sets of push cylinder (25).

6. The fully automatic headspace sampler according to claim 5, wherein: the diameter of the annular top plate (26) is smaller than the inner diameter of the feed port (5), and the annular top plate (26) extends into the feed port (5) when located at the highest position.

7. The fully automatic headspace sampler according to claim 6, wherein: collecting box (27) are installed to the front end of headspace sample injector body (1), collecting box (27) with discharge gate (8) are relative.