CN214765547U

CN214765547U - Liquid transfer device for automatic sample preparation

Info

Publication number: CN214765547U
Application number: CN202120014405.6U
Authority: CN
Inventors: 潘加奎; 肖飞; 周媛; 王晓荣; 庞杰; 史立尧
Original assignee: Shanghai Decode Medical Laboratory Co ltd
Current assignee: Shanghai Decode Medical Laboratory Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-11-19
Anticipated expiration: 2031-01-05

Abstract

The utility model relates to the technical field of liquid transfer devices, and discloses a liquid transfer device for automatic sample preparation, which comprises a base, a moving device and a liquid transfer device, wherein a side plate is fixedly arranged at the left side of the top end of the base, a top plate is fixedly connected with the upper side of the right end of the side plate, the moving device is fixedly arranged at the bottom end of the top plate, the liquid transfer device is fixedly arranged at the bottom end of the moving device, a raw material bottle, a waste bottle, a sample bottle and a cleaning bottle are uniformly arranged at the top end of the base, the liquid transfer device comprises a second support plate, second guide rods are fixedly connected with the left side and the right side of the bottom end of the second support plate, and third support plates are inserted at the lower sides of the second guide rods, the novel scheme can automatically take liquid by arranging the liquid transfer device, and simultaneously the liquid take device can be automatically cleaned, and can move upwards through a chock block to pass through the atmospheric pressure, can absorb the external raw materials.

Description

Liquid transfer device for automatic sample preparation

Technical Field

The utility model belongs to the technical field of move the liquid device, specifically be a move liquid device for automizing sample preparation.

Background

Clinical examination in hospital, isotope are exempted from to and do the experiment sample in scientific research unit or relevant enterprises and institutions such as chemical industry, food, mine, often need to use pipette or straw to move the liquid, are indispensable laboratory glassware, need often to use the pipette to move the liquid in the microbial testing experiment of hospital, have strict requirement to the dose when microbial detection reagent moves the liquid.

At present, the pipette that microbiological examination personnel used is flat mouth rubber pipette bulb burette mostly, and this kind of pipette is to the unable accurate control of measurement of experimental liquid, and when needs were examined multiple microorganism, need different pipettes move the liquid because of avoiding miscellaneous fungus pollution, can cause the waste on the material like this, for this reason, we provide a move liquid device for automatic sample preparation.

Disclosure of Invention

To the above situation, for overcoming prior art's defect, the utility model provides a move liquid device for automatic sample preparation, the effectual pipette that has solved present microbiological examination personnel and use is the plain end rubber pipette bulb burette mostly, and this kind of pipette is to the unable accurate control of measurement of experimental liquid, and when needs are inspected to multiple microorganism, moves liquid because of avoiding miscellaneous fungus to pollute the pipette that needs the difference, can cause the extravagant problem on the material like this.

In order to achieve the above object, the utility model provides a following technical scheme: a liquid transfer device for automatic sample preparation comprises a base, a moving device and a liquid transfer device, wherein a side plate is fixedly mounted on the left side of the top end of the base, a top plate is fixedly connected to the upper side of the right end of the side plate, the moving device is fixedly mounted at the bottom end of the top plate, the liquid transfer device is fixedly mounted at the bottom end of the moving device, and a raw material bottle, a waste bottle, a sample bottle and a cleaning bottle are uniformly arranged at the top end of the base;

the liquid transfer device comprises a second support plate, wherein the left side and the right side of the bottom end of the second support plate are fixedly connected with second guide rods, the lower sides of two groups of the second guide rods are inserted with a third support plate, the left side of the top end of the third support plate is fixedly provided with a second motor, the transmission end of the second motor is fixedly connected with a second screw rod, the upper side of the second screw rod is screwed with the left side of the body of the second support plate, the right side of the body of the second support plate is screwed with a third screw rod, the bottom end of the third screw rod is rotatably connected with the top end of the liquid transfer device, the body of the third support plate is rotatably connected with a fourth screw rod, chain belts are sleeved on the outer walls of the second screw rod, the third screw rod and the fourth screw rod, fixing devices are fixedly sleeved on the lower sides of the second guide rods, the viewing sides of the two groups of the fixing devices are clamped with the third screw rods, and the lower end of the fourth screw rod is inserted in the inner cavity of the sampling tube and fixedly connected with a stopper block, the upper side of the inner wall of the sampling pipe is provided with threads matched with the fourth screw;

fixing device includes the fixed block, the fixed block is fixed cup joints in the downside of second guide arm outer wall, the left and right sides the side of looking mutually of fixed block is all fixed and has been seted up the spacing groove, the left and right sides one side that the fourth screw rod was kept away from to the spacing groove is provided with the spring, the left and right sides the end of carrying on the back of the body of spring is connected with the left and right sides fixed block respectively, the left and right sides the side of looking mutually of spring is equal fixedly connected with splint, the sampling tube is located two sets of the side of looking mutually of splint.

Preferably, the mobile device includes two sets of first backup pads, the left and right sides the top fixed mounting of first backup pad is in the bottom of roof, the left and right sides the looks side rotation of roof is connected with first screw rod, right side the right-hand member of first backup pad has first motor through mounting bracket fixed mounting, the transmission end of first motor is connected with the right side of first screw rod, the outer wall spiro union of first screw rod has the spiral shell piece, the bottom fixedly connected with hydraulic press of spiral shell piece, the flexible end of hydraulic press is connected with the top of second backup pad.

Preferably, the upper side of the outer wall of the sampling pipe is fixedly sleeved with an auxiliary block, the outer wall of the auxiliary block is I-shaped, and the large clamping plate and the small clamping plate of the auxiliary block are matched.

Preferably, the bottom end of the fourth screw rod is fixedly connected with a movable joint, the bottom end of the movable joint is connected with the top end of the chock block, and the bottom end of the sampling tube is fixedly connected with a sampling head.

Preferably, the outer walls of the second screw, the third screw and the fourth screw are fixedly sleeved with tooth blocks, and the chain belt is located inside the tooth blocks.

Preferably, the viewing side of the first support plate on the left side and the right side is fixedly connected with a first guide rod, and the first guide rod penetrates through the lower side of the screw block.

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

1. when the sampling device is used, the sampling head is inserted into the raw material bottle first, and the liquid is taken by absorbing the raw material in the raw material bottle;

2. the moving device is arranged, so that the moving device can be moved conveniently, the automation degree of the device is increased, and the phenomenon of inaccurate sampling experiment caused by the operation of workers is reduced;

3. through setting up supplementary piece, the splint of being convenient for fix the sampling tube, take out the sampling tube through separating two sets of splint each other, through sending into the loose joint and the chock and wasing the bottle, wash the loose joint and the chock through the clear water that washs in the bottle.

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 view of the present invention;

fig. 2 is a schematic structural view of the mobile device of the present invention;

fig. 3 is the structure schematic diagram of the liquid-transfering device of the present invention.

In the figure: 100. a base; 110. a side plate; 120. a top plate; 130. a raw material bottle; 140. a waste bottle; 150. a sample bottle; 160. cleaning the bottle; 200. a mobile device; 210. a first support plate; 220. a first motor; 230. a first screw; 240. a screw block; 241. a first guide bar; 250. a hydraulic press; 300. a pipetting device; 310. a second support plate; 320. a second guide bar; 330. a third support plate; 340. a second motor; 341. a second screw; 350. a third screw; 360. a fourth screw; 361. a chain belt; 370. a fixing device; 371. a fixed block; 372. a spring; 373. a splint; 374. an auxiliary block; 380. a sampling tube; 390. a chock block; 391. a loose joint; 392. a sampling head.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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, a pipetting device for automated sample preparation includes a base 100, a moving device 200 and a pipetting device 300.

Referring to fig. 1, a side plate 110 is fixedly mounted on the left side of the top end of a base 100, a top plate 120 is fixedly connected to the upper side of the right end of the side plate 110, a moving device 200 is fixedly mounted on the bottom end of the top plate 120, a pipetting device 300 is fixedly mounted on the bottom end of the moving device 200, and a raw material bottle 130, a waste material bottle 140, a sample bottle 150 and a cleaning bottle 160 are uniformly arranged on the top end of the base 100.

Referring to fig. 1 and 3, the liquid transferring apparatus 300 includes a second support plate 310, second guide rods 320 are fixedly connected to both left and right sides of the bottom end of the second support plate 310, a third support plate 330 is inserted to the lower sides of the two sets of second guide rods 320, a second motor 340 is fixedly installed on the left side of the top end of the third support plate 330, a second screw 341 is fixedly connected to the transmission end of the second motor 340, the upper side of the second screw 341 is screwed to the left side of the body of the second support plate 310, a third screw 350 is screwed to the right side of the body of the second support plate 310, the bottom end of the third screw 350 is rotatably connected to the top end of the liquid transferring apparatus 300, the body of the third support plate 330 is rotatably connected to a fourth screw 360, chain belts 361 are sleeved on the outer walls of the second screw 341, the third screw 350 and the fourth screw 360, fixing devices 370 are fixedly sleeved to the lower sides of the second guide rods 320, the two sets of fixing devices 370 are clamped to the third screw 350, the lower extreme of fourth screw rod 360 is pegged graft in the inner chamber of sampling tube 380 and fixedly connected with chock 390, the upside of sampling tube 380 inner wall is provided with the screw thread with fourth screw rod 360 assorted, the bottom fixedly connected with loose joint 391 of fourth screw rod 360, the bottom of loose joint 391 is connected with the top of chock 390, the bottom fixedly connected with sampling head 392 of sampling tube 380, be convenient for sample through setting up sampling head 392, the stability of device is increased, second screw rod 341, third screw rod 350 all has fixed the cover to be cup jointed the tooth piece with the outer wall of fourth screw rod 360, chain belt 361 is located inside the tooth piece, can avoid chain belt 361 and second screw rod 341 through setting up the tooth piece, third screw rod 350 and fourth screw rod 360 are connected untight phenomenon, prevent second screw rod 341, third screw rod 350 and fourth screw rod 360 asynchronous operation.

Please refer to fig. 1 and 3, the fixing device 370 includes a fixing block 371, the fixing block 371 is fixedly sleeved on the lower side of the outer wall of the second guide rod 320, the viewing sides of the left and right fixing blocks 371 are both fixedly provided with a limiting groove, one side of the left and right limiting grooves away from the fourth screw 360 is provided with a spring 372, the opposite ends of the left and right spring 372 are respectively connected with the left and right fixing blocks 371, the viewing sides of the left and right spring 372 are both fixedly connected with a clamp plate 373, the sampling tube 380 is located on the viewing sides of the two clamp plates 373, the upper side of the outer wall of the sampling tube 380 is fixedly sleeved with an auxiliary block 374, the outer wall of the auxiliary block 374 is "i" shape, the large and small clamp plates 373 of the auxiliary block 374 are matched, and by setting the auxiliary block 374, the clamp plate 373 is convenient to fix the sampling tube 380.

Referring to fig. 2, the moving device 200 includes two sets of first supporting plates 210, top ends of left and right first supporting plates 210 are fixedly mounted at bottom ends of the top plate 120, viewing sides of the left and right top plates 120 are rotatably connected with a first screw 230, a right end of the right first supporting plate 210 is fixedly mounted with a first motor 220 through a mounting bracket, a transmission end of the first motor 220 is connected with a right side of the first screw 230, a screw 240 is screwed on an outer wall of the first screw 230, a bottom end of the screw 240 is fixedly connected with a hydraulic machine 250, a telescopic end of the hydraulic machine 250 is connected with a top end of a second supporting plate 310, the moving device 300 is moved conveniently by arranging the moving device 200, automation degree of the device is increased, inaccuracy of sampling experiments due to operations of workers is reduced, viewing sides of the left and right first supporting plates 210 are fixedly connected with first guide rods 241, the first guide rods 241 penetrate through lower sides of the screw 240, the screw block 240 is prevented from shaking in the moving process by the arrangement of the first guide rod 241, and the device is prevented from being damaged.

In this embodiment: the first motor 220 and the second motor 340 are both positive and negative rotating motors of 6D300GU-C type.

The working principle is as follows: when the novel scheme is implemented, the first motor 220 is started, the first screw 230 is driven to rotate by the first motor 220, the screw block 240 is driven to move left and right by the rotation of the first screw 230, the liquid-moving device 300 is driven to move left and right by the left and right movement of the screw block 240, the liquid-moving device 300 is driven to move up and down by the hydraulic machine 250, the second motor 340 is started, the second screw 341 is driven to rotate by the second motor 340, the chain belt 361 is driven to rotate by the rotation of the second screw 341, the third screw 350 is driven to rotate by the rotation of the chain belt 361, the third support plate 330 is driven to ascend by the rotation of the second screw 341 and the third screw 350, the second motor 340 is driven to ascend through the third support plate 330, the fourth screw 360 is driven to rotate by the chain belt 361, the movable joint 391 and the chock 390 are driven to move upwards by the rotation of the fourth screw 360, and the fourth screw 360 is driven to move upwards by the third support plate 330, so that a downward force cannot be applied to the sampling tube 380, move upward through atmospheric pressure through chock 390, can absorb external raw materials, when using, insert sampling head 392 into raw materials bottle 130 earlier, through absorbing the raw materials of raw materials bottle 130 inside, then wet sampling head 392 and chock 390 and the inner wall of sampling tube 380 in the sampling tube 380, then get rid of the inner chamber of sampling tube 380 to waste material bottle 140 with the raw materials, later inhale the raw materials of raw materials bottle 130 into sampling tube 380 again, second motor 340 rotates the round then chock 390 reciprocates 1mm, when finishing with the raw materials sample of raw materials bottle 130 and send to sample bottle 150, rotate through second motor 340 and drive chock 390 and break away from sampling tube 380, take out sampling tube 380 through separating two sets of splint 373 from each other, through sending into washing bottle 160 with chock 391 and chock 390, wash with chock 391 and chock 390 through the clear water that washs in the bottle 160.

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.

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. Pipetting device for automated sample preparation comprising a base (100), a moving device (200) and a pipetting device (300), characterized in that: a side plate (110) is fixedly mounted on the left side of the top end of the base (100), a top plate (120) is fixedly connected to the upper side of the right end of the side plate (110), a moving device (200) is fixedly mounted at the bottom end of the top plate (120), a liquid transfer device (300) is fixedly mounted at the bottom end of the moving device (200), and raw material bottles (130), waste bottles (140), sample bottles (150) and cleaning bottles (160) are uniformly arranged at the top end of the base (100);

the liquid transfer device (300) comprises a second support plate (310), the left side and the right side of the bottom end of the second support plate (310) are fixedly connected with second guide rods (320), the lower sides of the two groups of second guide rods (320) are spliced with a third support plate (330), the left side of the top end of the third support plate (330) is fixedly provided with a second motor (340), the transmission end of the second motor (340) is fixedly connected with a second screw (341), the upper side of the second screw (341) is in threaded connection with the left side of the body of the second support plate (310), the right side of the body of the second support plate (310) is in threaded connection with a third screw (350), the bottom end of the third screw (350) is rotatably connected to the top end of the liquid transfer device (300), the body of the third support plate (330) is rotatably connected with a fourth screw (360), chain belts (361) are sleeved on the outer walls of the second screw (341), the third screw (350) and the fourth screw (360), the lower sides of the second guide rods (320) are fixedly sleeved with fixing devices (370), the viewing sides of the two groups of fixing devices (370) are clamped with third screw rods (350), the lower ends of the fourth screw rods (360) are inserted into the inner cavity of the sampling tube (380) and are fixedly connected with plug blocks (390), and threads matched with the fourth screw rods (360) are arranged on the upper side of the inner wall of the sampling tube (380);

fixing device (370) includes fixed block (371), fixed block (371) is fixed cup joints in the downside of second guide arm (320) outer wall, the left and right sides the side of looking mutually of fixed block (371) is all fixed has seted up the spacing groove, the left and right sides one side that fourth screw rod (360) were kept away from to the spacing groove is provided with spring (372), the left and right sides the end of carrying on the back of the body of spring (372) is connected with left and right sides fixed block (371) respectively, the left and right sides the equal fixedly connected with splint (373) of side are looked mutually of spring (372), sampling tube (380) are located two sets of the side is looked mutually of splint (373).

2. A pipetting device for automated sample preparation according to claim 1, characterized in that: mobile device (200) include two sets of first backup pad (210), the left and right sides the top fixed mounting of first backup pad (210) is in the bottom of roof (120), the left and right sides the looks side rotation of roof (120) is connected with first screw rod (230), the right side the right-hand member of first backup pad (210) has first motor (220) through mounting bracket fixed mounting, the transmission end of first motor (220) is connected with the right side of first screw rod (230), the outer wall spiro union of first screw rod (230) has spiral shell piece (240), the bottom fixedly connected with hydraulic press (250) of spiral shell piece (240), the flexible end of hydraulic press (250) is connected with the top of second backup pad (310).

3. A pipetting device for automated sample preparation according to claim 1, characterized in that: an auxiliary block (374) is fixedly sleeved on the upper side of the outer wall of the sampling tube (380), the outer wall of the auxiliary block (374) is I-shaped, and the large clamping plate (373) and the small clamping plate (374) of the auxiliary block (374) are matched.

4. A pipetting device for automated sample preparation according to claim 1, characterized in that: the bottom end of the fourth screw rod (360) is fixedly connected with a movable joint (391), the bottom end of the movable joint (391) is connected with the top end of the stopper block (390), and the bottom end of the sampling tube (380) is fixedly connected with a sampling head (392).

5. A pipetting device for automated sample preparation according to claim 1, characterized in that: the outer walls of the second screw (341), the third screw (350) and the fourth screw (360) are fixedly sleeved with tooth blocks, and the chain belt (361) is located inside the tooth blocks.

6. A pipetting device for automated sample preparation according to claim 2, characterized in that: the viewing side of the first supporting plate (210) on the left side and the right side is fixedly connected with a first guide rod (241), and the first guide rod (241) penetrates through the lower side of the screw block (240).