CN220473088U

CN220473088U - Fetal bovine serum extracting device

Info

Publication number: CN220473088U
Application number: CN202321874162.9U
Authority: CN
Inventors: 金建英; 王旭; 田元元; 周力青; 姚丽珠
Original assignee: Zhangjiakou Haiweisheng Biomaterials Co ltd
Current assignee: Zhangjiakou Haiweisheng Biomaterials Co ltd
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-02-09
Anticipated expiration: 2033-07-17

Abstract

The utility model relates to a device for extracting fetal calf serum, which comprises a sampling tube, wherein the bottom end of the sampling tube is fixed with the sampling tube, an extraction assembly is arranged in the sampling tube, the bottom end of the sampling tube is fixed with an annular plate, and the annular plate is internally connected with a protection tube in a threaded manner. When using, hold the sampling tube in the hand, put the sampling tube in child bovine serum, then control extraction component is inside taking the sampling tube with child bovine serum through the sampling tube suction, accomplish the extraction task of child bovine serum, extraction component can operate by one hand, it is more convenient to use, simultaneously, extraction component can also control extraction speed, make the sampling tube at the uniform velocity extract child bovine serum, avoid the too fast extraction of speed a large amount of air, after child bovine serum is taken out and accomplish, can twist the bottom at the sampling tube with the protection tube and protect the sampling tube, the protection tube adopts the screw thread to connect, it is more stable to fix, avoid the protection tube to drop and cause inconvenience, the practicality is better, more convenient popularization and use.

Description

Fetal bovine serum extracting device

Technical Field

The utility model relates to the technical field of extraction of fetal calf serum, in particular to an extraction device of the fetal calf serum.

Background

The fetal bovine serum is a pale yellow clear, hemolysis-free and foreign matter-free slightly viscous liquid, is generally obtained from a fetal bovine by caesarean section, contains the least cell-harmful components such as antibodies and complements, and needs to be used in a fetal bovine serum extraction device when the fetal bovine serum needs to be tested.

For example, china patent (bulletin number: CN 218470284U) discloses a negative pressure type fetal calf serum extracting device, which comprises a containing tube, a rotating block and a protecting tube, wherein a sealing piston plate is connected to the inner side of the containing tube in a sliding manner, the sealing piston plate is arranged on the inner side of a negative pressure cavity, the negative pressure cavity is formed in the upper side of the containing tube, a connecting rod is fixedly connected to the middle part of the upper end of the sealing piston plate, the connecting rod penetrates through the side wall of the upper end of the containing tube and is connected with the containing tube in a sliding manner, the connecting rod is arranged in the negative pressure cavity, the upper end of the connecting rod is fixedly connected with a rotating connecting block, the rotating connecting block slides in the upper side of the containing tube, the rotating connecting block is connected to the bottom end of a threaded fixing head in a threaded fixing sleeve in a sliding manner, and the negative pressure type fetal calf serum sample can be automatically extracted through negative pressure, so that the extracting efficiency of the device is effectively improved, and the structure is simple and the practicability is strong.

However, the above-mentioned search patent still has a little deficiency, it is when drawing the fetal calf serum, it needs rotatory rotating block make the screw thread fixed head break away from screw thread fixed sleeve and just can carry out the extraction, because the rotating block is located the top of holding the pipe, just need hold holding pipe another hand rotatory rotating block when extracting, inconvenient one hand operates, in addition, because the pressure in negative pressure chamber is inconvenient to control, lead to sealed piston plate ascending speed to obtain effective control, and then inconvenient control fetal calf serum's extraction speed, use and have certain inconvenience, so put forward the extraction device of fetal calf serum in order to solve above-mentioned problem.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a fetal bovine serum extraction device which has the advantages of convenience for one-hand operation, more convenience for use and the like, and solves the problems that the retrieving patent is not put in hundred sodium for one-hand operation when in use, and the fetal bovine serum extraction speed is not effectively controlled.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the extraction device of the fetal bovine serum comprises a sampling tube, wherein the bottom end of the sampling tube is fixedly provided with the sampling tube, and an extraction assembly is arranged in the sampling tube;

the extraction subassembly includes the baffle of level fixation between the sampling tube inner wall, the top surface sliding connection of baffle has the connecting rod, the top of connecting rod is fixed with the roof, the movable hole has been seted up in the front of sampling tube, the front of roof is fixed with the connecting block that the front runs through the movable hole and extends to the sampling tube front side, the front of connecting block is fixed with the clamp plate, the cover is equipped with first spring on the periphery wall of connecting rod, the bottom mounting of connecting rod has the piston block, the left side sliding connection of sampling tube has the pull rod that the right-hand member extends to the sampling tube inside, the left end of pull rod is fixed with the pull ring, the right-hand member of pull rod is fixed with the limiting plate, a plurality of spacing grooves have been seted up on the right side of limiting plate, set up two circular grooves that are upper and lower distribution on the inner wall of sampling left side, the downside is fixed with the telescopic link on the periphery wall of telescopic link and the periphery wall of pull rod on all overlap and are equipped with the second spring.

Further, the front of sampling tube is fixed with glass observation window, the front of sampling tube just is located the right side of glass observation window and is fixed with the scale, the periphery wall of sampling tube is dull polish antiskid surface.

Further, the bottom end of the sampling tube is fixed with an annular plate, the annular plate is internally connected with a protection tube in a threaded manner, and the sampling tube is positioned at the inner side of the protection tube.

Further, an internal thread is formed in the inner peripheral wall of the annular plate, and an external thread matched with the internal thread is formed in the outer peripheral wall of the protection tube and close to the top end.

Further, the top surface of baffle has seted up the slide hole that supplies the connecting rod to run through perpendicularly and rather than sliding connection, the activity hole is used for supplying the connecting block to slide from top to bottom in its inside, the pull rod level runs through the top the circular slot.

Further, the right end of telescopic link is fixed mutually with the limiting plate, and two the second spring is located two circular grooves respectively, limiting groove and roof clearance fit, a plurality of the limiting groove is the equidistance about being distributed.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

this extraction device of child bovine serum, when using, hold the sampling tube in the hand, put the sampling tube in child bovine serum, then control extraction subassembly is inside taking the sampling tube with child bovine serum through the sampling tube suction, accomplish the extraction task of child bovine serum, extraction subassembly can operate by one hand, it is more convenient to use, simultaneously, extraction subassembly can also control extraction speed, make the sampling tube at uniform velocity extract child bovine serum, avoid the too fast extraction of speed a large amount of air, after child bovine serum extraction is accomplished, can twist the bottom at the sampling tube with the protection tube and protect the sampling tube, the protection tube adopts the screw thread to connect, it is more stable to fix, avoid the protection tube to drop and cause inconvenience, the practicality is better, and more convenient popularization and use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic side view of the internal structure of the sampling tube of the present utility model;

FIG. 3 is a schematic front view of the internal structure of the sampling tube of the present utility model.

In the figure: 1 sampling tube, 2 sampling tube, 3 extraction subassembly, 301 baffle, 302 connecting rod, 303 roof, 304 movable hole, 305 connecting block, 306 press plate, 307 first spring, 308 piston block, 309 pull rod, 310 pull ring, 311 limiting plate, 312 limiting groove, 313 circular groove, 314 telescopic link, 315 second spring, 4 annular plate, 5 protection tube.

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. 1-3, the device for extracting fetal bovine serum in this embodiment includes a sampling tube 1, a sampling tube 2 is fixed at the bottom end of the sampling tube 1, an extraction component 3 is disposed in the sampling tube 1, when in use, the sampling tube 1 is held in a hand, the sampling tube 2 is placed in the fetal bovine serum, then the extraction component 3 is controlled to suck the fetal bovine serum into the sampling tube 1 through the sampling tube 2, the task of extracting the fetal bovine serum is completed, the extraction component 3 can be operated by one hand, the use is more convenient, meanwhile, the extraction component 3 can also control the extraction speed, so that the sampling tube 1 can extract the fetal bovine serum at a constant speed, a large amount of air is prevented from being extracted at an excessively high speed, the practicability is better, and the popularization and the use are more convenient.

The drawing component 3 comprises a baffle 301 horizontally fixed between the inner walls of the sampling tube 1, a connecting rod 302 is slidingly connected to the top surface of the baffle 301, a sliding hole for the connecting rod 302 to vertically penetrate and slidingly connect with the baffle 301 is formed on the top surface of the baffle 301, a top plate 303 is fixed on the top end of the connecting rod 302, a movable hole 304 is formed on the front surface of the sampling tube 1, a connecting block 305 with the front end penetrating the movable hole 304 and extending to the front side of the sampling tube 1 is fixed on the front surface of the top plate 303, a pressing plate 306 is fixed on the front surface of the connecting block 305, when in use, the sampling tube 1 is held by a right hand, the pressing plate 306 is downwards pressed by a thumb, the pressing plate 306 drives the connecting block 305 to downwards slide in the movable hole 304, then drives the top plate 303 to downwards slide in the sampling tube 1, a first spring 307 is sleeved on the peripheral wall of the connecting rod 302, a piston block 308 is fixed on the bottom end of the connecting rod 302, and the drawing component is further, the top plate 303 pushes the connecting rod 302 to move downwards, the first spring 307 is compressed by the top plate 303, the connecting rod 302 moves downwards to push the piston block 308 to move downwards, at this time, the sampling tube 1 enters a preliminary sampling state, the sampling tube 2 is put into fetal calf serum, the thumb of the right hand is slowly lifted upwards, the first spring 307 pushes the top plate 303 to move upwards, the piston block 308 is further driven to move upwards by the connecting rod 302, the inner space of the sampling tube 1 is in a negative pressure state near the lower part, so that fetal calf serum is extracted into the sampling tube 1, the extracting task is finished, the speed of extracting fetal calf serum can be controlled by controlling the lifting speed of the thumb, the pull rod 309 extending to the inner part of the sampling tube 1 from the right end is slidingly connected with the left end of the pull rod 309, the pull rod 310 is fixed at the left end of the pull rod 309, before the sampling tube 1 is used for extracting a sample, the middle finger or index finger of the right hand needs to be inserted into the pull rod 310, then pull ring 310 is pulled to the left side through the finger, pull ring 310 drives pull rod 309 to move to the left side, limiting plate 311 is fixed to the right end of pull rod 309, a plurality of limiting grooves 312 are formed in the right side of limiting plate 311, further, pull rod 309 drives limiting plate 311 to move to the left side, top plate 303 is separated from limiting groove 312, at this moment, top plate 303 releases the limit, press plate 306 can be controlled to draw, two circular grooves 313 which are distributed up and down are formed in the left inner wall of sampling tube 1, telescopic rods 314 are fixed to the left side of the inner cavity of lower circular groove 313, second springs 315 are respectively sleeved on the outer peripheral wall of telescopic rods 314 and the outer peripheral wall of pull rod 309, two second springs 315 are respectively located in two circular grooves 313, when limiting plate 311 moves to the left side, telescopic rods 314 and second springs 315 are compressed, so that when pull ring 310 is released, top plate 303 is pushed to the right side through second springs 315, top plate 303 is clamped into the inside limiting grooves 312 to carry out limit locking, and the piston block 308 is conveniently fixed when non-full fetal bovine serum is drawn.

The front of sampling tube 1 is fixed with the glass observation window, and the front of sampling tube 1 just is located the right side of glass observation window and is fixed with the scale, conveniently observes the volume of sampling tube 1 inside extraction child calf serum through glass observation window and scale, and sampling tube 1's periphery wall is dull polish antiskid surface, is convenient for increase the frictional force between palm and the sampling tube 1 through the dull polish surface, is convenient for better hold sampling tube 1 and carries out the extraction task.

The movable hole 304 is used for allowing the connecting block 305 to slide up and down in the connecting block, the pull rod 309 horizontally penetrates through the top circular groove 313, the right end of the telescopic rod 314 is fixed with the limiting plate 311, the stability of the limiting plate 311 during left and right movement is convenient to be lifted through the telescopic rod 314, the limiting groove 312 is in clearance fit with the top plate 303, and the plurality of limiting grooves 312 are distributed in an up-down equidistant mode.

Referring to fig. 1, in this embodiment, an annular plate 4 is fixed at the bottom end of the sampling tube 1, a protecting tube 5 is connected to the annular plate 4 in a threaded manner, the sampling tube 2 is located inside the protecting tube 5, after the fetal calf serum is extracted, the protecting tube 5 can be screwed at the bottom of the sampling tube 1 to protect the sampling tube 2, the protecting tube 5 is connected by threads, the fixing is more stable, inconvenience caused by falling of the protecting tube 5 is avoided, the practicability is better, and the popularization and the use are more convenient.

The inner peripheral wall of the annular plate 4 is provided with internal threads, and the outer peripheral wall of the protection tube 5 is provided with external threads matched with the internal threads near the top end.

The working principle of the embodiment is as follows:

when the sampling tube 1 is used, the right hand holds the sampling tube 1, the thumb is used for pressing down the pressing plate 306, the pressing plate 306 drives the connecting block 305 to slide downwards in the movable hole 304, the top plate 303 is driven to slide downwards in the sampling tube 1, the top plate 303 pushes the connecting rod 302 to move downwards, meanwhile, the top plate 303 compresses the first spring 307, the connecting rod 302 moves downwards to push the piston block 308 to move downwards, at the moment, the sampling tube 1 enters a preliminary sampling state, the sampling tube 2 is placed into fetal calf serum, the thumb of the right hand is lifted upwards, the first spring 307 pushes the top plate 303 to move upwards, the piston block 308 is further driven to move upwards through the connecting rod 302, the position, close to the lower part, of the inner space of the sampling tube 1 is in a negative pressure state, so that the fetal calf serum is extracted into the sampling tube 1, and the speed of fetal calf serum extraction can be controlled by controlling the upper speed of the thumb.

Before the sampling tube 1 is used for sampling, a middle finger or an index finger of a right hand is required to be inserted into the pull ring 310, then the pull ring 310 is pulled leftwards by a finger, the pull ring 310 drives the pull rod 309 to move leftwards, the pull rod 309 further drives the limiting plate 311 to move leftwards, the top plate 303 is separated from the limiting groove 312, at the moment, the top plate 303 is released from the limit, the pressing plate 306 can be controlled to be extracted, and when the limiting plate 311 moves leftwards, the telescopic rod 314 and the second spring 315 can be compressed, so that when the pull ring 310 is released, the limiting plate 311 is pushed to move rightwards by the second spring 315, the top plate 303 is clamped into the limiting groove 312 to be limited and locked, and the structure is convenient for fixing the piston block 308 when non-full-tube calf serum is extracted.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a drawing device of child calf serum, includes sampling tube (1), its characterized in that: the bottom end of the sampling tube (1) is fixedly provided with a sampling tube (2), and an extraction assembly (3) is arranged in the sampling tube (1);

the extraction component (3) comprises a partition plate (301) horizontally fixed between the inner walls of the sampling tube (1), a connecting rod (302) is slidably connected to the top surface of the partition plate (301), a top plate (303) is fixed to the top end of the connecting rod (302), a movable hole (304) is formed in the front surface of the sampling tube (1), a connecting block (305) with the front end penetrating through the movable hole (304) and extending to the front side of the sampling tube (1) is fixed to the front surface of the top plate (303), a pressing plate (306) is fixed to the front surface of the connecting block (305), a first spring (307) is sleeved on the outer peripheral wall of the connecting rod (302), a piston block (308) is fixed to the bottom end of the connecting rod (302), a pull rod (309) with the right end extending to the inside of the sampling tube (1) is fixed to the left end of the connecting rod (309), a plurality of limit grooves (312) are formed in the right side of the limit plate (311), circular grooves (313) are formed in the left end of the connecting rod (309), circular grooves (313) are formed in the upper side of the lower side of the sampling tube (1), the second springs (315) are respectively sleeved on the outer peripheral wall of the telescopic rod (314) and the outer peripheral wall of the pull rod (309).

2. The fetal bovine serum extraction apparatus of claim 1, wherein: the front of sampling tube (1) is fixed with glass observation window, the front of sampling tube (1) just is located the right side of glass observation window and is fixed with the scale, the periphery wall of sampling tube (1) is dull polish antiskid surface.

3. The fetal bovine serum extraction apparatus of claim 1, wherein: the bottom end of the sampling tube (1) is fixedly provided with an annular plate (4), the annular plate (4) is internally connected with a protection tube (5) in a threaded manner, and the sampling tube (2) is positioned at the inner side of the protection tube (5).

4. A device for extracting fetal bovine serum as claimed in claim 3, wherein: an internal thread is arranged on the inner peripheral wall of the annular plate (4), and an external thread matched with the internal thread is arranged on the outer peripheral wall of the protection tube (5) and close to the top end.

5. The fetal bovine serum extraction apparatus of claim 1, wherein: the top surface of the partition plate (301) is provided with a sliding hole through which the connecting rod (302) vertically penetrates and is in sliding connection with the connecting rod, the movable hole (304) is used for allowing the connecting block (305) to slide up and down in the connecting block, and the pull rod (309) horizontally penetrates through the top of the circular groove (313).

6. The fetal bovine serum extraction apparatus of claim 1, wherein: the right end of the telescopic rod (314) is fixed with the limiting plate (311), two second springs (315) are respectively located in two circular grooves (313), the limiting grooves (312) are in clearance fit with the top plate (303), and a plurality of limiting grooves (312) are distributed at equal intervals up and down.