CN209894803U

CN209894803U - Sample extractor for pharmaceutical experiment

Info

Publication number: CN209894803U
Application number: CN201920722669.XU
Authority: CN
Inventors: 陆霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-01-03
Anticipated expiration: 2029-05-20

Abstract

The utility model discloses a pharmacy experiment sample presentation ware, including carrying a kind section of thick bamboo, it has the chamber of carrying a kind to open in carrying a kind section of thick bamboo, carries a kind section of thick bamboo top cover and connects the turning rod, and threaded connection slider is passed through to dwang one end, and the slider cup joints in the intracavity of carrying a kind, and slider bottom installation piston carries a kind head, carries a kind section of thick bamboo and cup joints the position with the dwang and opens there is the turn trough, and the fast-advancing mechanism of installation in the turn trough, the dwang other end run through carry a kind section of thick bamboo and install the knob, install locking mechanical system on the. Open locking mechanical system, through the fast rotation dwang of fast advancing mechanism, the dwang passes through the screw thread and drives the slider removal, thereby the slider drives the fast removal of piston piece and carries the appearance intracavity with the sample suction, rethread knob drives the dwang when the sample is close desired value and rotates and carry out the accuracy and absorb, thereby it makes things convenient for control slide displacement to move through the screw thread control slider, then draws the sample volume accuracy, and locking mechanical system locks behind the extraction sample prevents that the dwang from rotating to jet out the sample and carries an appearance section of thick bamboo.

Description

Sample extractor for pharmaceutical experiment

Technical Field

The utility model relates to a pharmacy experimental facilities technical field specifically is a pharmacy experiment sample injector.

Background

In the medical science learning process, in order to know the medicine performance, the pharmacy experiment needs to be carried out, need draw quantitative medicine sample with the sampler and study in the experiment, present sampler all adopts simple straw or syringe to carry out the sample, the sample volume of drawing is accurate enough and the sample can't be discharged from the sampler completely, lead to the experiment to be accurate inadequately, and touch the sampler push rod easily after the sample, make the medicine sample spout from the sampler, bring the inconvenience, we propose a pharmacy experiment sampler for solving above-mentioned problem for this reason.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pharmacy experiment sample injector to solve the problem of proposing 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 a pharmacy experiment sample lifting device, includes a sample lifting cylinder, it has the sample lifting chamber to open in the sample lifting cylinder, sample lifting cylinder top is rotated and is cup jointed the dwang, the one end of dwang is stretched into the sample lifting intracavity and is passed through the threaded connection slider, the slider slides and cup joints at the sample lifting intracavity, sample lifting chamber both sides inner wall is opened there is the spacing groove, slider outer wall fixed mounting stopper, stopper sliding clamping connects in the spacing groove, slider bottom fixed mounting piston, sample lifting cylinder bottom fixed mounting sample lifting head, sample lifting cylinder cup joints the position with the dwang and opens there is the turn trough, installation fast-advancing mechanism between turn trough and dwang, the other end of dwang runs through sample lifting cylinder and fixed mounting knob, install locking mechanism on the dwang between knob and the sample lifting cylinder.

Preferably, the outer wall of the sample extraction barrel is provided with an observation window, a transparent glass slide with scales is fixedly installed in the observation window, and the thread pitch of the threads is 0.5 mm.

Preferably, the bottom end of the piston and the bottom end of the sample lifting cavity are of matched conical structures, an ejector pin is fixedly installed at the bottom end of the piston, and the length and the diameter of the ejector pin are equal to those of the sample lifting head.

Preferably, fast forward mechanism includes sun gear, the fixed dwang of cup jointing at the turn trough of sun gear both sides, the turn trough inner wall of sun gear both sides rotates and cup joints the gear shaft, the fixed planetary gear that cup joints on the gear shaft, planetary gear's inboard meshing sun gear, the planetary gear outside meshes the ring gear, the ring gear outer wall is stretched out the turn trough and is located and carries a kind section of thick bamboo outer wall.

Preferably, the sun gear and the planetary gear have the same specification parameters.

Preferably, locking mechanical system includes the sliding sleeve, the sliding sleeve slides and cup joints on the dwang between a knob and a sample extraction section of thick bamboo, the sliding sleeve is close to the one end inner wall fixed mounting spacing ring of a sample extraction section of thick bamboo, the dwang is close to the one end outer wall fixed mounting retaining ring of knob, cup joint the spring on the dwang between retaining ring and spacing ring, spring both ends fixed connection retaining ring and spacing ring respectively, the sliding sleeve is close to the one end outer wall of knob and opens and has locked the groove, dwang outer wall fixed mounting stop pin, stop pin sliding clamping is locking inslot, sample extraction section of thick bamboo top outer wall fixed mounting solid fixed ring, solid fixed ring and sliding sleeve installation meshing's between the ratchet.

Preferably, the spring is always in a compressed state, and the locking groove is of an L-shaped structure.

Compared with the prior art, the beneficial effects of the utility model are that: the rotation of the rotating rod is converted into the movement of the sliding block and the piston through the threads, the thread pitch of the threads is 0.5mm, the piston moves 0.5mm after the rotating rod rotates for a circle, and a sample is conveniently and accurately sucked; the gear ring is rotated, the specification parameters of the central gear and the planetary gear are the same, the inner diameter of the gear ring is equal to the diameter of the central gear and the planetary gear, the gear ring rotates for a circle, the central gear rotates for three circles, and the rotating rod rotates for three circles, so that the sliding block and the piston move rapidly, and the rotating rod is driven by the knob to rotate for precise absorption after the sample is absorbed and ejected rapidly; the spring is in compression state all the time for the sliding sleeve presses on solid fixed ring, and the ratchet meshing, then unable relative rotation between sliding sleeve and fixed ring, locking groove are L type structure, and the stop pin is located the vertical inslot of L type this moment, then the dwang is unable to rotate, avoids injecting the liquid medicine after the sample after accident, and the pulling sliding sleeve makes the ratchet separation, slides in L type horizontal inslot with the stop pin, and then the sliding sleeve is fixed, and the ratchet keeps the separation, and the dwang of being convenient for rotates and absorbs or jets out the liquid medicine.

Drawings

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

FIG. 2 is a schematic view of a partial structure of a locking mechanism of the present invention;

FIG. 3 is an enlarged schematic structural view of the structure at the position A of the present invention;

fig. 4 is a schematic structural view of the middle fast-forward mechanism of the present invention.

In the figure: the sample extracting device comprises a sample extracting barrel 1, a sample extracting cavity 2, a rotating rod 3, a thread 4, a sliding block 5, a locking mechanism 6, a locking groove 61, a locking pin 62, a retaining ring 63, a spring 64, a sliding sleeve 65, a limiting ring 66, a ratchet 67, a fixing ring 68, a rotating groove 7, a fast-forward mechanism 8, a central gear 81, a planetary gear 82, a gear shaft 83, a gear ring 84, a limiting groove 9, a limiting block 10, a piston 11, a thimble 12, an observation window 13, a transparent slide 14, a sample extracting head 15 and a knob 16.

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. 1-4, the present invention provides a technical solution: a pharmaceutical experiment sample lifting device comprises a sample lifting cylinder 1, a sample lifting cavity 2 is arranged in the sample lifting cylinder 1, a rotating rod 3 is rotatably sleeved at the top end of the sample lifting cylinder 1, one end of the rotating rod 3 extends into the sample lifting cavity 2 and is connected with a sliding block 5 through a thread 4, the sliding block 5 is slidably sleeved in the sample lifting cavity 2, limiting grooves 9 are formed in the inner walls of two sides of the sample lifting cavity 2, a limiting block 10 is fixedly installed on the outer wall of the sliding block 5, the limiting block 10 is slidably clamped in the limiting groove 9, a piston 11 is fixedly installed at the bottom end of the sliding block 5, a sample lifting head 15 is fixedly installed at the bottom end of the sample lifting cylinder 1, a rotating groove 7 is formed in the sleeved position of the sample lifting cylinder 1 and the rotating rod 3, a fast-forwarding mechanism 8 is installed between the rotating groove 7 and the rotating rod 3, the other end of the rotating rod 3 penetrates through the sample lifting cylinder 1 and is fixedly installed with a knob 16, a locking mechanism 6 is installed on, dwang 3 drives slider 5 through screw thread 4 and removes, thereby slider 5 drives piston 11 and removes in carrying a kind chamber 2 with the sample suction, thereby it makes things convenient for 5 travel distance of control slider to remove through screw thread 4 control slider 5, then it is accurate to draw the sample volume, can fast turn dwang 3 through fast forward mechanism 8, thereby absorb the sample fast, drive dwang 3 through knob 16 again when the sample is close the required value and rotate and carry out the accuracy and draw, locking mechanical system 6 locks behind the extraction sample, prevent that dwang 3 from rotating to jet out a sample carrying section of thick bamboo 1 with the sample.

The outer wall of the sample extraction cylinder 1 is provided with an observation window 13, a transparent glass slide 14 with scales is fixedly installed in the observation window 13, the volume of a sample is convenient to observe, the thread pitch of the thread 4 is 0.5mm, the piston 11 rotates a circle of the rotating rod 3 to move by 0.5mm, and the sample is convenient to accurately absorb.

The bottom end of the piston 11 and the bottom end of the sample extracting cavity 2 are of a matched conical structure, the bottom end of the piston 11 is fixedly provided with the ejector pin 12, and the length and the diameter of the ejector pin 12 are equal to those of the sample extracting head 15, so that a sample in the sample extracting cylinder 1 is completely ejected.

The fast forward mechanism 8 comprises a central gear 81, the central gear 81 is fixedly sleeved on the rotating rod 3 in the rotating groove 7, the inner walls of the rotating groove 7 at two sides of the central gear 81 are rotatably sleeved with a gear shaft 83, the gear shaft 83 is fixedly sleeved with a planetary gear 82, the inner side of the planetary gear 82 is meshed with the central gear 81, the outer side of the planetary gear 82 is meshed with a gear ring 84, the outer wall of the gear ring 84 extends out of the rotating groove 7 and is positioned on the outer wall of the sample extracting cylinder 1, the gear ring 84 is rotated, the specification parameters of the central gear 81 and the planetary gear 82 are the same, the inner diameter of the gear ring 84 is equal to 3 times of the diameters of the central gear 81 and the planetary gear 82, the gear ring 84 is rotated for one circle, the gear ring 84 is rotated for three circles, and the.

The locking mechanism 6 comprises a sliding sleeve 65, the sliding sleeve 65 is sleeved on the rotating rod 3 between the knob 16 and the sample extracting barrel 1 in a sliding manner, a limit ring 66 is fixedly installed on the inner wall of one end, close to the sample extracting barrel 1, of the sliding sleeve 65, a stop ring 63 is fixedly installed on the outer wall of one end, close to the knob 16, of the rotating rod 3, a spring 64 is sleeved on the rotating rod 3 between the stop ring 63 and the limit ring 66, two ends of the spring 64 are respectively and fixedly connected with the stop ring 63 and the limit ring 66, a locking groove 61 is formed in the outer wall of one end, close to the knob 16, of the sliding sleeve 65, a locking pin 62 is fixedly installed on the outer wall of the rotating rod 3, the locking pin 62 is clamped in the locking groove 61 in a sliding manner, a fixing ring 68 is fixedly installed on the outer wall of the top end of the sample extracting barrel 1, a ratchet 67 meshed with the sliding sleeve 65, the, locking groove 61 is L type structure, and the stop pin 62 is located the vertical inslot of L type this moment, then the dwang 3 can't rotate, avoids shooing out the liquid medicine after the sample by accident, stimulates sliding sleeve 65, makes the separation of ratchet 67, slides in L type horizontal inslot with stop pin 62, and then sliding sleeve 65 is fixed, and ratchet 67 keeps the separation, and the dwang 3 of being convenient for rotates and absorbs or jets out the liquid medicine.

The working principle is as follows: when the utility model is used, the sliding sleeve 65 is pulled to separate the ratchet 67, the locking pin 62 is slid into the L-shaped horizontal groove, the sliding sleeve 65 is fixed, the ratchet 67 is kept separated, the sample lifting head 15 is stretched into a sample, the gear ring 84 is rotated for one circle, the central gear 81 is rotated for three circles, the rotating rod 3 is rotated for three circles, so that the sliding block 5 and the piston 11 can move rapidly, the sample can be sucked rapidly, the sample volume can be observed through the transparent slide 14 with scales, when the sample is close to a required value, the knob 16 is rotated, the rotating speeds of the knob 16 and the rotating rod 3 are the same, so that the sample can be sucked precisely, after the sample is lifted, the sliding sleeve 65 is rotated, the locking pin 62 is slid into the vertical groove of the locking groove 61, the spring 64 is always in a compressed state, the sliding sleeve 65 is pressed on the fixing ring 68, the ratchet 67 is meshed, the sliding sleeve 65 and the fixing, the rotating rod 3 can not rotate, and the liquid medicine can not be ejected by accident after sampling.

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. A pharmaceutical experiment sampler comprises a sampler barrel (1), and is characterized in that: a sample lifting cavity (2) is formed in the sample lifting cylinder (1), a rotating rod (3) is rotatably sleeved at the top end of the sample lifting cylinder (1), one end of the rotating rod (3) extends into the sample lifting cavity (2) and is connected with a sliding block (5) through a thread (4), the sliding block (5) is slidably sleeved in the sample lifting cavity (2), limiting grooves (9) are formed in inner walls of two sides of the sample lifting cavity (2), a limiting block (10) is fixedly installed on the outer wall of the sliding block (5), the sliding block (10) is slidably clamped in the limiting grooves (9), a piston (11) is fixedly installed at the bottom end of the sliding block (5), a sample lifting head (15) is fixedly installed at the bottom end of the sample lifting cylinder (1), a rotating groove (7) is formed in a sleeved position of the sample lifting cylinder (1) and the rotating rod (3), a rotating rod quick advancing mechanism (8) is installed between the rotating groove (7) and the rotating rod (3), and the other end of the sample lifting cylinder (1) penetrates through the sample, and a locking mechanism (6) is arranged on the rotating rod (3) between the knob (16) and the sampling cylinder (1).

2. The pharmaceutical laboratory sample injector according to claim 1, wherein: it has observation window (13) to carry a appearance section of thick bamboo (1) outer wall to open, transparent slide (14) that observation window (13) internal fixation has the scale, the pitch of screw thread (4) is 0.5 mm.

3. The pharmaceutical laboratory sample injector according to claim 1, wherein: piston (11) bottom and the toper structure of drawing a kind chamber (2) bottom for matched with, and piston (11) bottom fixed mounting thimble (12), the length and the diameter of thimble (12) are equal to the length and the diameter of drawing a kind head (15).

4. The pharmaceutical laboratory sample injector according to claim 1, wherein: fast forward mechanism (8) include sun gear (81), sun gear (81) are fixed cup joints on dwang (3) in revolving groove (7), revolving groove (7) inner wall of sun gear (81) both sides rotates and cup joints gear shaft (83), fixed cup joint planetary gear (82) on gear shaft (83), inboard meshing sun gear (81) of planetary gear (82), planetary gear (82) outside meshing ring gear (84), ring gear (84) outer wall stretches out revolving groove (7) and is located and carries a kind section of thick bamboo (1) outer wall.

5. The pharmaceutical laboratory sample injector according to claim 4, wherein: the specification parameters of the sun gear (81) and the planet gear (82) are the same.

6. The pharmaceutical laboratory sample injector according to claim 1, wherein: the locking mechanism (6) comprises a sliding sleeve (65), the sliding sleeve (65) is slidably sleeved on a rotating rod (3) between a knob (16) and a sample extraction barrel (1), the sliding sleeve (65) is close to a one-end inner wall fixed mounting limiting ring (66) of the sample extraction barrel (1), the rotating rod (3) is close to one-end outer wall fixed mounting baffle ring (63) of the knob (16), a spring (64) is sleeved on the rotating rod (3) between the baffle ring (63) and the limiting ring (66), two ends of the spring (64) are respectively fixedly connected with the baffle ring (63) and the limiting ring (66), one-end outer wall of the sliding sleeve (65) close to the knob (16) is provided with a locking groove (61), the rotating rod (3) outer wall fixed mounting locking pin (62), the locking pin (62) is slidably clamped in the locking groove (61), the top end outer wall fixed mounting fixing ring (68) of the sample extraction barrel (1), and a ratchet (67) which is engaged is arranged between the fixing ring (68) and the sliding sleeve (65).

7. The pharmaceutical laboratory sample injector of claim 6, wherein: the spring (64) is always in a compressed state, and the locking groove (61) is of an L-shaped structure.