CN219046029U - Sampling device for pharmaceutical detection - Google Patents

Abstract

The utility model relates to the technical field of medical instruments and discloses a sampling device for pharmaceutical detection, which comprises a suction pipe and a liquid suction pipe, wherein an extraction mechanism is arranged in the suction pipe, the lower end of the liquid suction pipe is arranged on a protection mechanism, the middle part of the bottom end of the suction pipe is rotationally connected with the middle part of the top end of the liquid suction pipe through a transfer column, the extraction mechanism comprises a downward moving pipe, a lower through hole and a second one-way valve, a fixing plate is arranged at the middle upper part in the suction pipe, the middle part of the fixing plate is connected with the downward moving pipe in a sliding manner, a piston is arranged at the lower part of the outer side of the downward moving pipe, and a pressure plate is fixedly connected with the middle part of the pipe body of the downward moving pipe. According to the utility model, the extraction mechanism continuously presses the pressing handle, then the piston moves upwards due to spring reset, the piston is communicated with the lower through hole in one way through the first one-way valve, and the liquid suction pipe continuously pumps liquid, so that more liquid medicine can be pumped at one time, batch suction is not needed, and the use is convenient.

Description

Sampling device for pharmaceutical detection

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a sampling device for pharmaceutical detection.

Background

The pharmaceutical inspection refers to inspection of some medicines, generally pharmaceutical enterprises, drug administration and the like, and a laboratory established by itself detects novel developed medicines according to national standards, and the pharmaceutical inspection generally extracts a proper amount of medicines through a sampling device for laboratory detection.

The sampling device at the present stage has certain defects in use, firstly, when a plurality of indexes are carried out on a medicament and a plurality of test tubes are detected, the single liquid taking amount of the sampling device at the present stage is less, multiple times of extraction are needed, the process is repeatedly wasted, and the medicament is exposed in the air and is easy to enter bacteria; secondly, after the traditional sampling device extracts the medicament, when needing to be placed briefly, the liquid taking port of the sampling device is easy to be exposed in the air in the placing process to be infected with bacteria, so that the judgment of the inspection condition is affected.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a sampling device for pharmaceutical detection, which can extract a sufficient amount of required medicament to be detected at one time through an extraction mechanism, does not need repeated extraction and quantification, is simple to use, and meanwhile, a protection mechanism protects a liquid drawing pipe through a protective cylinder, a conical clamping block and a rubber pad to prevent external air from entering and polluting.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the sampling device for pharmaceutical detection comprises a suction pipe and a liquid drawing pipe, wherein an extraction mechanism is arranged in the suction pipe, the lower end of the liquid drawing pipe is arranged on a protection mechanism, and the middle part of the bottom end of the suction pipe is rotationally connected with the middle part of the top end of the liquid drawing pipe through a transfer column;

the extraction mechanism comprises a downward moving pipe, a lower through hole and a second one-way valve, wherein a fixing plate is arranged at the inner middle upper part of the suction pipe, the middle part of the fixing plate is connected with the downward moving pipe in a sliding manner, a piston is arranged at the lower part of the outer side of the downward moving pipe, a pressure plate is fixedly connected with the middle part of the pipe body of the downward moving pipe, a spring is arranged between the bottom end of the pressure plate and the top end of the fixing plate, the spring is sleeved on the pipe body of the downward moving pipe, a first one-way valve is arranged at one side of the middle part of the bottom end of the suction pipe, and an upper through hole is arranged at the other side of the middle part of the bottom end of the suction pipe.

Through the technical scheme, the extraction mechanism drives the pressure plate to press down the spring through the pressing handle, the piston slides downwards at the moment, air compression at the lower part of the fixing plate in the suction pipe enters the downward moving pipe through the second one-way valve, then the air is discharged through the butt joint hole and the exhaust hole on the shielding ring, then the spring is reset, the piston moves upwards, the suction pipe is in one-way communication with the air flow of the lower through hole through the first one-way valve, the medicament to be detected is extracted by the liquid suction pipe, the pressing handle is pressed for multiple times, so that the liquid suction pipe extracts more medicament at one time without batch suction, when the liquid suction pipe needs to discharge the medicament, the shielding ring and the suction pipe are rotated, the butt joint hole is staggered with the exhaust hole respectively, the lower through hole is staggered with the first one-way valve, the lower through hole is aligned with the upper through hole, the magnet block is used for limiting the suction pipe to be converted, the piston is pressed down, the air enters the liquid suction pipe through the upper through hole and the lower through hole, and the medicament is smoothly discharged.

Further, the protection mechanism comprises a protective cylinder, a chassis and a sealing gasket, wherein the bottom end of the protective cylinder is fixedly connected to the top end of the chassis, a conical clamping block is arranged on the inner upper portion of the protective cylinder, and a liquid drain pipe is connected to the inner clamping of the conical clamping block.

Through above-mentioned technical scheme, when drawing certain medicament in the inside of drawing the liquid pipe and needing temporarily depositing, will draw the lower part block of liquid pipe into the inside of toper fixture block to through the inboard rubber pad of toper fixture block, the inside condition of the contaminated liquid pipe of drawing of air entering of seal external world protects extraction mechanism, draws the liquid pipe to insert in the inside of protecting a section of thick bamboo, protects the bottom of a section of thick bamboo and connects the chassis again, and the weight of chassis is heavier, and the space of placing is big, and this mechanism wholly places more steadily.

Further, a rubber pad is arranged on one side of the conical clamping block, which is close to the liquid drawing pipe.

Through above-mentioned technical scheme, the rubber pad is used for sealing outside air, prevents that bacterium from getting into the inside of protecting a section of thick bamboo, pollutes the inner wall.

Further, one side of the middle part of the top end of the liquid drawing pipe is provided with a lower through hole.

Through above-mentioned technical scheme, but lower through-hole intercommunication first check valve and last through-hole, the inside pressure of balanced suction tube for flowing back and the extraction of medicament.

Further, the piston is connected to the inner lower part of the suction pipe in a sliding way, and a second one-way valve is arranged at the bottom end of the downward moving pipe.

Through the technical scheme, when the second one-way valve is used for pressing down the piston, air in the suction pipe is circulated and discharged.

Further, magnet blocks are arranged on two sides of the top end of the liquid drawing pipe and two sides of the bottom end of the suction pipe, and sealing gaskets are arranged on the outer diameter of the top end of the liquid drawing pipe and the outer diameter of the bottom end of the suction pipe.

Through the technical scheme, the suction pipe and the liquid suction pipe are also rotationally connected through the transfer column, and meanwhile, when the lower through hole is aligned with the first one-way valve or the upper through hole, the suction pipe and the liquid suction pipe are limited by the attraction of the magnet blocks in order to prevent the rotation and the deviation of the two pipes.

Further, the top of the downshifting pipe penetrates through the top of the suction pipe and is fixedly connected to the bottom of the pressing handle, an annular block is fixedly connected to the upper portion of the pipe body of the downshifting pipe, and the annular block is rotatably connected to the inner upper portion of the shielding ring.

Through above-mentioned technical scheme, the shielding ring rotates through the annular piece, makes exhaust hole and butt joint hole stagger for press the handle to push down, and the inside air of suction tube can't flow out the suction tube through second check valve and exhaust hole, realizes that the flowing back leaves fast.

Further, the middle part of the front end of the shielding ring is provided with an exhaust hole, the upper part of the front end of the downward moving pipe is provided with a butt joint hole, and the exhaust holes are in one-to-one correspondence with the butt joint holes.

Through the technical scheme, when the exhaust hole is aligned with the butt joint hole in a consistent way, the downward air flow in the suction pipe can be eliminated, the descending of the piston is not influenced, and the negative pressure in the pipe is manufactured to extract the medicament to be inspected.

The utility model has the following beneficial effects:

1. according to the utility model, the pressing handle is pressed down to drive the pressure plate to press down the spring, the piston slides down simultaneously, air in the suction pipe enters the downward moving pipe through the second one-way valve under compression, then the air is discharged through the butt joint hole and the exhaust hole on the shielding ring, then the spring is reset, the piston moves up, the liquid suction pipe is communicated with the air flow of the lower through hole in one way through the first one-way valve, the medicament to be detected is extracted through the liquid suction pipe, the pressing handle is pressed repeatedly, the liquid suction pipe can continuously extract more liquid medicine, and the liquid suction is realized once without batch suction.

2. In the utility model, the lower part of the liquid drawing pipe is clamped into the interior of the conical clamping block, and the condition that the outside air enters the interior of the polluted liquid drawing pipe is closed by the rubber pad at the inner side of the conical clamping block, so that the extracted medicament is protected from pollution, the liquid drawing pipe is maintained to be inserted into the interior of the protective cylinder, and the liquid drawing pipe is matched with a chassis with heavier weight, so that the whole placement is more stable.

Drawings

Fig. 1 is a schematic top perspective view of a sampling device for pharmaceutical testing according to the present utility model;

FIG. 2 is a front cross-sectional view of a sampling device for pharmaceutical testing according to the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

fig. 4 is an enlarged view at B in fig. 2.

Legend description:

1. pressing a handle; 2. a suction tube; 3. a liquid drain pipe; 4. an extraction mechanism; 401. a magnet block; 402. a piston; 403. a pressure plate; 404. a spring; 405. a butt joint hole; 406. moving down the pipe; 407. an exhaust hole; 408. a shielding ring; 409. a second one-way valve; 410. an upper through hole; 411. a first one-way valve; 412. a lower through hole; 5. a protection mechanism; 501. a protective barrel; 502. a chassis; 503. a conical clamping block; 504. a rubber pad; 6. a fixing plate; 7. a transfer column; 8. an annular block; 9. and a sealing gasket.

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.

Referring to fig. 1-4, one embodiment provided by the present utility model is: the sampling device for pharmaceutical detection comprises a suction tube 2 and a liquid drawing tube 3, wherein an extraction mechanism 4 is arranged in the suction tube 2, the lower end of the liquid drawing tube 3 is arranged on a protection mechanism 5, and the middle part of the bottom end of the suction tube 2 is rotationally connected with the middle part of the top end of the liquid drawing tube 3 through a transfer column 7;

the extraction mechanism 4 comprises a downward moving pipe 406, a lower through hole 412 and a second one-way valve 409, the middle upper part in the suction pipe 2 is provided with a fixed plate 6, the middle part of the fixed plate 6 is connected with the downward moving pipe 406 in a sliding way, the lower part of the outer side of the downward moving pipe 406 is provided with a piston 402, the middle part of the pipe body of the downward moving pipe 406 is fixedly connected with a pressure plate 403, a spring 404 is arranged between the bottom end of the pressure plate 403 and the top end of the fixed plate 6, the spring 404 is sleeved on the pipe body of the downward moving pipe 406, one side of the middle bottom end of the suction pipe 2 is provided with a first one-way valve 411, the other side of the middle bottom end of the suction pipe 2 is provided with an upper through hole 410, the extraction mechanism 4 drives the pressure plate 403 to press down the spring 404 through a downward pressing handle 1, at this moment, air at the lower part of the fixed plate 6 in the suction pipe 2 is compressed into the downward moving pipe 406 through the second one-way valve 409, then the gas is discharged through the butt joint hole 405 and the vent hole 407 on the shielding ring 408, then the spring 404 is reset, the piston 402 moves upwards, the gas flow is communicated with the lower through hole 412 in one way through the first one-way valve 411, the liquid suction pipe 3 extracts the medicament to be tested, the pressing handle 1 is pressed for multiple times, the liquid suction pipe 3 realizes one time to extract more medicament liquid, no batch suction is needed, when the liquid suction pipe 3 needs to discharge the medicament liquid, the shielding ring 408 and the suction pipe 2 are rotated to respectively lead the butt joint hole 405 to be staggered with the vent hole 407, the lower through hole 412 to be staggered with the first one-way valve 411, the lower through hole 412 to be aligned with the upper through hole 410, the magnet 401 limits the suction pipe 2 to be converted with the liquid suction pipe 3, the pressing handle 1 is pressed, the piston 402 descends, the air enters the liquid suction pipe 3 through the upper through hole 410 and the lower through hole 412, and the medicament liquid is smoothly discharged

The protection mechanism 5 comprises a protective cylinder 501, a chassis 502 and a sealing gasket 9, the bottom end of the protective cylinder 501 is fixedly connected to the top end of the chassis 502, a conical clamping block 503 is arranged at the inner upper part of the protective cylinder 501, a liquid drawing pipe 3 is connected in a clamping manner in the inner part of the conical clamping block 503, when a certain medicament is drawn in the liquid drawing pipe 3 and needs to be stored for a short time, the lower part of the liquid drawing pipe 3 is clamped in the inner part of the conical clamping block 503, and the inner part of the liquid drawing pipe 3 is polluted by the air of the sealed outside through a rubber gasket 504 arranged at the inner side of the conical clamping block 503, the protection extraction mechanism 4 is protected, the liquid drawing pipe 3 is inserted in the protective cylinder 501, the bottom end of the protective cylinder 501 is connected with the chassis 502 again, the chassis 502 has heavy weight and large placing space, the whole mechanism is placed more stably, one side of the conical clamping block 503 close to the liquid drawing pipe 3 is provided with the rubber gasket 504 and the rubber gasket 504 is used for sealing the outside air to prevent bacteria from entering the inner part of the protective cylinder 501, the inner wall is polluted, one side of the middle part of the top end of the liquid sucking pipe 3 is provided with a lower through hole 412, the lower through hole 412 can be communicated with a first one-way valve 411 and an upper through hole 410, the pressure in the suction pipe 2 is balanced, the liquid sucking pipe is used for discharging liquid and extracting medicaments, a piston 402 is connected to the inner lower part of the suction pipe 2 in a sliding way, the bottom end of a downward moving pipe 406 is provided with a second one-way valve 409, when the piston 402 is pressed down by the second one-way valve 409, the air in the suction pipe 2 is discharged through circulation, both sides of the top end of the liquid sucking pipe 3 and both sides of the bottom end of the suction pipe 2 are provided with magnet blocks 401, the outer diameter of the top end of the liquid sucking pipe 3 and the outer diameter of the bottom end of the suction pipe 2 are respectively provided with a sealing gasket 9, the suction pipe 2 and the liquid sucking pipe 3 are rotationally connected through a transfer column 7, meanwhile, when the lower through hole 412 is aligned with the first one-way valve 411 or aligned with the upper through hole 410, in order to prevent the two pipes from rotationally shifting, and is limited through the attraction of the magnet blocks 401, the top of the downshifting pipe 406 penetrates through the top of the suction pipe 2 and is fixedly connected to the bottom of the pressure handle 1, the upper part of the pipe body of the downshifting pipe 406 is fixedly connected with an annular block 8, the annular block 8 is rotationally connected to the inner upper part of the shielding ring 408, the shielding ring 408 rotates through the annular block 8, the exhaust holes 407 are staggered with the butt joint holes 405, the pressure handle 1 is pressed downwards, air in the suction pipe 2 cannot flow out of the suction pipe 2 through the second check valve 409 and the exhaust holes 407, rapid liquid discharge leaving is realized, the middle part of the front end of the shielding ring 408 is provided with the exhaust holes 407, the upper part of the front end of the downshifting pipe 406 is provided with the butt joint holes 405, and the exhaust holes 407 correspond to the butt joint holes 405 one by one.

Working principle: the extracting mechanism 4 drives the pressure plate 403 to press down the spring 404 by pressing down the pressing handle 1, at this time, the piston 402 slides down, air at the lower part of the fixing plate 6 in the suction pipe 2 is compressed and enters the downward moving pipe 406 through the second one-way valve 409, then the air is discharged through the butt joint hole 405 and the exhaust hole 407 on the shielding ring 408, then the spring 404 is reset, the piston 402 moves up and is communicated with the lower through hole 412 in a one-way through the first one-way valve 411, the liquid suction pipe 3 extracts the medicament to be detected, the pressing handle 1 is pressed for multiple times, the liquid suction pipe 3 realizes one-time extraction of more liquid medicine without batch extraction, when the liquid suction pipe 3 needs to discharge the liquid medicine, the shielding ring 408 and the suction pipe 2 are rotated, so that the butt joint hole 405 is staggered with the exhaust hole 407, the lower through hole 412 is staggered with the first one-way valve 411 respectively, the lower through hole 412 is aligned with the upper through hole 410, the magnet block 401 is used for limiting the suction pipe 2 to be converted with the liquid drawing pipe 3, the pressing handle 1 is pressed, the piston 402 descends, air enters the liquid drawing pipe 3 through the upper through hole 410 and the lower through hole 412, liquid medicine is smoothly discharged, when a certain medicine is drawn in the liquid drawing pipe 3 and needs to be stored temporarily, the lower part of the liquid drawing pipe 3 is clamped into the inner part of the conical clamping block 503, the rubber pad 504 on the inner side of the conical clamping block 503 is used for sealing the air entering outside, the inner part of the liquid drawing pipe 3 is prevented from being polluted, the liquid drawing pipe 3 is inserted into the protective cylinder 501, the bottom end of the protective cylinder 501 is connected with the chassis 502 again, the weight of the chassis 502 is heavy, the placing space is large, and the whole mechanism is placed more stably.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model 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, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (8)

1. Sampling device for pharmaceutical detection, comprising a suction tube (2) and a liquid-drawing tube (3), characterized in that: the inside of the suction pipe (2) is provided with an extraction mechanism (4), the lower end of the liquid suction pipe (3) is arranged on the protection mechanism (5), and the middle part of the bottom end of the suction pipe (2) is rotationally connected with the middle part of the top end of the liquid suction pipe (3) through a switching column (7);

the extraction mechanism (4) comprises a downward moving pipe (406), a lower through hole (412) and a second one-way valve (409), wherein a fixing plate (6) is arranged at the middle upper part in the suction pipe (2), the middle part of the fixing plate (6) is connected with the downward moving pipe (406) in a sliding manner, a piston (402) is arranged at the lower part of the outer side of the downward moving pipe (406), a pressure plate (403) is fixedly connected with the middle part of the pipe body of the downward moving pipe (406), a spring (404) is arranged between the bottom end of the pressure plate (403) and the top end of the fixing plate (6), the spring (404) is sleeved on the pipe body of the downward moving pipe (406), a first one-way valve (411) is arranged at one side of the middle part of the bottom end of the suction pipe (2), and an upper through hole (410) is arranged at the other side of the middle part of the bottom end of the suction pipe (2).

2. A sampling device for pharmaceutical testing according to claim 1, wherein: the protection mechanism (5) comprises a protection cylinder (501), a chassis (502) and a sealing gasket (9), wherein the bottom end of the protection cylinder (501) is fixedly connected to the top end of the chassis (502), a conical clamping block (503) is arranged on the inner upper portion of the protection cylinder (501), and a liquid drawing pipe (3) is connected to the inner clamping of the conical clamping block (503).

3. A sampling device for pharmaceutical testing according to claim 2, wherein: a rubber pad (504) is arranged on one side of the conical clamping block (503) close to the liquid drawing pipe (3).

4. A sampling device for pharmaceutical testing according to claim 1, wherein: a lower through hole (412) is arranged at one side of the middle part of the top end of the liquid drawing pipe (3).

5. A sampling device for pharmaceutical testing according to claim 1, wherein: the piston (402) is connected to the inner lower part of the suction pipe (2) in a sliding way, and a second one-way valve (409) is arranged at the bottom end of the downward moving pipe (406).

6. A sampling device for pharmaceutical testing according to claim 1, wherein: magnet blocks (401) are arranged on two sides of the top end of the liquid sucking pipe (3) and two sides of the bottom end of the suction pipe (2), and sealing gaskets (9) are arranged on the outer diameter of the top end of the liquid sucking pipe (3) and the outer diameter of the bottom end of the suction pipe (2).

7. A sampling device for pharmaceutical testing according to claim 1, wherein: the top of the downward moving pipe (406) penetrates through the top of the suction pipe (2) and is fixedly connected to the bottom of the pressing handle (1), an annular block (8) is fixedly connected to the upper portion of the pipe body of the downward moving pipe (406), and the annular block (8) is rotatably connected to the inner upper portion of the shielding ring (408).

8. A sampling device for pharmaceutical testing according to claim 7, wherein: the middle part of the front end of the shielding ring (408) is provided with an exhaust hole (407), the upper part of the front end of the downward moving pipe (406) is provided with a butt joint hole (405), and the exhaust holes (407) are in one-to-one correspondence with the butt joint holes (405).

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