CN217180107U

CN217180107U - Accurate sampling device of pharmacy experimental sample

Info

Publication number: CN217180107U
Application number: CN202220253322.7U
Authority: CN
Inventors: 韩成龙
Original assignee: Sichuan University
Current assignee: Sichuan University
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2022-08-12
Anticipated expiration: 2032-02-08

Abstract

The utility model discloses an accurate sampling device of pharmacy experimental sample, including the sampler barrel, the bottom of sampler barrel is provided with the sampling tube, and the inside of sampler barrel is provided with the piston board, and the top sliding connection of sampler barrel has the sample handle, and the bottom of sample handle is connected with the last fixed surface of piston board, and the gas injection passageway has been seted up to the inside of sample handle, and the gas injection passageway extends to the lower surface of piston board and has seted up jet-propelled groove, and the inside in jet-propelled groove is provided with the jam subassembly. This accurate sampling device of pharmacy experimental sample, refer to the scale mark line, slide the gag lever post, the scale of sample has been adjusted, then utilize reset spring's elasticity to go into the draw-in groove with the kelly card, fix a position the gag lever post, then insert the sampling tube in the sample, utilize the sample handle to drive the piston board and remove, can use the sampler barrel to take a sample, support tightly up to limiting plate and gag lever post, fix a position the sample handle, the sample is stopped, reach the purpose of accurate extraction sample, avoid the sample to extract and lead to the fact the waste too much.

Description

Accurate sampling device of pharmacy experimental sample

Technical Field

The utility model relates to a pharmacy laboratory glassware technical field specifically is an accurate sampling device of pharmacy experimental sample.

Background

Pharmacy mainly researches the source, processing, properties, effects, analysis, identification, blending, production, storage, new medicine searching and the like of the medicines. The main task is to continuously provide more effective medicines, improve the quality of the medicines, ensure the safety of medication and treat or cure diseases in a mode of minimum injury and maximum benefit for patients.

When carrying out the pharmacy experiment, need take a sample to the sample, generally take a sample to the liquid sample, all use the sampling syringe to take a sample, but current sampling syringe exists the inaccurate condition of sample, and the sample is too much, can cause the waste of sample, and when the sample that takes out in the sampling syringe is annotated to the laboratory dish, the inner wall of sampling syringe still remains there is the micro-sample, also can cause the inaccurate condition of sample sampling.

Therefore, the utility model provides an accurate sampling device of pharmacy experimental samples.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an accurate sampling device of pharmacy experimental sample to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an accurate sampling device of pharmacy experimental sample, including the sampler barrel, the bottom of sampler barrel is provided with the sampling tube, the inside of sampler barrel is provided with the piston plate, the top sliding connection of sampler barrel has the sample handle, the bottom of sample handle is connected with the last fixed surface of piston plate, the gas injection passageway has been seted up to the inside of sample handle, the gas injection passageway extends to the lower surface of piston plate and has seted up jet-propelled groove, the inside in jet-propelled groove is provided with the jam subassembly, the top of sample handle is provided with the gas injection subassembly, the lateral wall fixedly connected with limiting plate of sample handle, the interior roof sliding connection of sampler barrel has the gag lever post, the bottom of gag lever post and the last surface contact of limiting plate, the top of sampler barrel is provided with spacing subassembly.

Preferably, block up the subassembly and include the jam piece of sliding connection in jet-propelled inslot portion, jam piece and jet-propelled groove looks adaptation, the top fixedly connected with of jam piece links up the pole, and spacing spout has been seted up to the inside of sample handle, and the inside sliding connection of spacing spout has spacing dish, the lower surface of spacing dish and the top fixed connection who links up the pole, and the inside of spacing spout is provided with supports tight spring with spacing dish to the tight top of spacing spout.

Preferably, the gas injection subassembly is including inlaying the rubber gasbag of establishing at the sample handle top, and the gas injection end of rubber gasbag is linked together with the top of gas injection passageway, and the surface of rubber gasbag is provided with one-way admission valve.

Preferably, spacing subassembly includes the installation sleeve of fixed connection on the sampling tube top, and the inside sliding connection of installation sleeve has the kelly, and the draw-in groove with kelly looks adaptation is seted up on the surface of gag lever post, and the inside of installation sleeve is provided with the reset spring of drive kelly and draw-in groove chucking.

Preferably, the quantity of draw-in groove is a plurality of, and a plurality of draw-in groove equidistance is seted up on the surface of gag lever post, and the scale marking line has been seted up to the corresponding draw-in groove in surface of gag lever post.

Advantageous effects

The utility model provides an accurate sampling device of pharmacy experimental sample possesses following beneficial effect:

1. this accurate sampling device of pharmacy experimental samples, refer to the scale mark line, slide the gag lever post, the scale of sample has been adjusted, then utilize reset spring's elasticity to go into the draw-in groove with the kelly card, fix a position the gag lever post, then insert the sampling tube in the sample, utilize the sample handle to drive the piston board and remove, can use the sampler barrel to take a sample, support tightly up to limiting plate and gag lever post, fix a position the sample handle, the sample is stopped, thereby the purpose of accurate extraction sample has been reached, avoid the sample to extract and lead to the fact extravagantly too much.

2. This accurate sampling device of pharmacy experimental sample, after the extraction sample, promote the sample handle, annotate the sample from a sampling section of thick bamboo, the back is finished in the notes, through pinching the rubber gasbag repeatedly, under the effect of one-way admission valve, can be to the inside gas injection of gas injection passageway, the elasticity of resisting tight spring is overcome to gas, it slides downwards in spacing spout to link up pole and spacing dish, it is ejecting downwards to block up the piece, the air current is spouted to the sampling section of thick bamboo inside from the lower surface of piston plate, will remain a small amount of sample blowout, thereby further reach the purpose that promotes the sample precision.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is an enlarged schematic view of B in fig. 1.

In the figure: the sampling device comprises a sampling cylinder 1, a sampling tube 2, a piston plate 3, a sampling handle 4, an air injection channel 5, a limiting plate 6, a limiting rod 7, a blocking block 8, an engaging rod 9, a limiting disc 10, a butting spring 11, a rubber air bag 12, a one-way air inlet valve 13, an installation sleeve 14, a clamping rod 15, a clamping groove 16, a return spring 17 and scale marking lines 18.

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. 1-3, the present invention provides a technical solution: the utility model provides an accurate sampling device of pharmacy experimental sample, includes sampler barrel 1, and the bottom of sampler barrel 1 is provided with sampling tube 2, and the inside of sampler barrel 1 is provided with piston plate 3, and the top sliding connection of sampler barrel 1 has sample handle 4, and the bottom of sample handle 4 is connected with the last fixed surface of piston plate 3, and gas injection passageway 5 has been seted up to the inside of sample handle 4, and gas injection passageway 5 extends to the lower surface of piston plate 3 and has seted up jet-propelled groove.

The inside in jet-propelled groove is provided with blocks up the subassembly, block up the subassembly and include sliding connection at the inside jam piece 8 in jet-propelled inslot portion, block up piece 8 and jet-propelled groove looks adaptation, the top fixedly connected with of jam piece 8 links up pole 9, spacing spout has been seted up to the inside of sample handle 4, the inside sliding connection of spacing spout has spacing dish 10, the lower surface of spacing dish 10 and the top fixed connection who links up pole 9, the inside of spacing spout is provided with supports tight spring 11 with spacing dish 10 to the tight top of spacing spout.

The top of sample handle 4 is provided with the gas injection subassembly, and the gas injection subassembly is including inlaying the rubber gasbag 12 of establishing at sample handle 4 top, and the gas injection end of rubber gasbag 12 is linked together with the top of gas injection passageway 5, and the surface of rubber gasbag 12 is provided with one-way admission valve 13.

The lateral wall fixedly connected with limiting plate 6 of sample handle 4, the interior roof sliding connection of sampler barrel 1 has gag lever post 7, the bottom of gag lever post 7 and the upper surface contact of limiting plate 6.

The top of sampler barrel 1 is provided with spacing subassembly, spacing subassembly includes the installation sleeve 14 of fixed connection on 1 top of sampler barrel, the inside sliding connection of installation sleeve 14 has kelly 15, draw-in groove 16 with kelly 15 looks adaptation is seted up on the surface of gag lever post 7, the inside of installation sleeve 14 is provided with the reset spring 17 of drive kelly 15 and draw-in groove 16 chucking, the quantity of draw-in groove 16 is a plurality of, the surface at gag lever post 7 is seted up to a plurality of draw-in groove 16 equidistance, scale marking line 18 has been seted up to the corresponding draw-in groove 16 in surface of gag lever post 7.

Refer to scale mark line 18, slide gag lever post 7, adjust the scale of sample, then utilize reset spring 17's elasticity to go into draw-in groove 16 with gag lever post 15 card in, fix a position gag lever post 7, then insert sampling tube 2 in the sample, utilize sample handle 4 to drive piston plate 3 and remove, can use sampler barrel 1 to take a sample, support tightly up to limiting plate 6 and gag lever post 7, fix a position sample handle 4, the sample stops, thereby the mesh of accurate extraction sample has been reached, avoid the sample to extract too much and cause the waste.

After the sample is extracted, the sampling handle 4 is pushed, the sample is injected out of the sampling cylinder 1, after the injection is finished, the rubber air bag 12 is repeatedly pinched, gas can be injected into the gas injection channel 5 under the action of the one-way gas inlet valve 13, the gas overcomes the elastic force of the abutting spring 11, the connecting rod 9 and the limiting disc 10 slide downwards in the limiting chute, the blocking block 8 is ejected downwards, the gas flow is sprayed into the sampling cylinder 1 from the lower surface of the piston plate 3, and a small amount of residual sample is sprayed out, so that the purpose of improving the sampling precision is further achieved.

The working principle is as follows: when the accurate sampling device for the pharmaceutical experimental samples is used, firstly, the limiting rod 7 is slid according to the scale mark line 18, the scale of sampling is adjusted, then the clamping rod 15 is clamped into the clamping groove 16 by the elasticity of the reset spring 17 to position the limiting rod 7, then the sampling tube 2 is inserted into the samples, the sampling handle 4 is utilized to drive the piston plate 3 to move, the sampling barrel 1 can be used for sampling until the limiting plate 6 is tightly abutted to the limiting rod 7, the sampling handle 4 is positioned, the sampling is stopped, the purpose of accurately extracting the samples is achieved, the waste caused by excessive sample extraction is avoided, after the sample extraction is finished, the sampling handle 4 is pushed, the samples are injected out from the sampling barrel 1, after the injection is finished, the rubber air bag 12 is repeatedly pinched, the air can be injected into the air injection channel 5 under the action of the one-way air inlet valve 13, and the elasticity of the abutting spring 11 is overcome by the air, the joint rod 9 and the limiting disc 10 slide downwards in the limiting sliding groove, the blocking block 8 is ejected downwards, air flow is sprayed into the sampling tube 1 from the lower surface of the piston plate 3, and a small amount of residual samples are sprayed out, so that the purpose of improving sampling precision is further achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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 an accurate sampling device of pharmacy experimental sample, includes sampler cylinder (1), its characterized in that: the bottom of sampler barrel (1) is provided with sampling tube (2), the inside of sampler barrel (1) is provided with piston plate (3), the top sliding connection of sampler barrel (1) has sample handle (4), the bottom of sample handle (4) is connected with the last fixed surface of piston plate (3), gas injection passageway (5) have been seted up to the inside of sample handle (4), gas injection passageway (5) extend to the lower surface of piston plate (3) and seted up jet-propelled groove, jet-propelled groove's inside is provided with the jam subassembly, the top of sample handle (4) is provided with the gas injection subassembly, the lateral wall fixedly connected with limiting plate (6) of sample handle (4), the interior roof sliding connection of sampler barrel (1) has gag lever post (7), the bottom of gag lever post (7) and the upper surface contact of limiting plate (6), the top of sampler barrel (1) is provided with spacing subassembly.

2. The accurate sampling device for pharmaceutical experimental samples, according to claim 1, characterized in that: the blocking component comprises a blocking block (8) which is connected to the inside of the air injection groove in a sliding mode, the blocking block (8) is matched with the air injection groove, the top fixedly connected with connecting rod (9) of the blocking block (8), a limiting sliding groove is formed in the inside of the sampling handle (4), a limiting disc (10) is connected to the inside of the limiting sliding groove in a sliding mode, the lower surface of the limiting disc (10) is fixedly connected with the top end of the connecting rod (9), and a tight spring (11) which is used for tightly supporting the limiting disc (10) to the top of the upward limiting sliding groove is arranged inside the limiting sliding groove.

3. The accurate sampling device for pharmaceutical experimental samples, according to claim 1, characterized in that: the gas injection subassembly is including inlaying rubber gasbag (12) of establishing at sample handle (4) top, and the gas injection end of rubber gasbag (12) is linked together with the top of gas injection passageway (5), and the surface of rubber gasbag (12) is provided with one-way admission valve (13).

4. The accurate sampling device for pharmaceutical experimental samples, according to claim 1, characterized in that: spacing subassembly includes mounting sleeve (14) of fixed connection on sampler barrel (1) top, and the inside sliding connection of mounting sleeve (14) has kelly (15), and draw-in groove (16) with kelly (15) looks adaptation are seted up on the surface of gag lever post (7), and the inside of mounting sleeve (14) is provided with reset spring (17) of drive kelly (15) and draw-in groove (16) chucking.

5. The accurate sampling device for pharmaceutical experimental samples, according to claim 4, wherein: the quantity of draw-in groove (16) is a plurality of, and a plurality of draw-in groove (16) equidistance is seted up on the surface of gag lever post (7), and scale mark (18) have been seted up to the corresponding draw-in groove (16) in surface of gag lever post (7).