Biochemical sample extraction device
By designing an automated biochemical sample extraction device, which utilizes a sealing plate and an electric push rod assembly to achieve automated sample extraction and transfer, the problems of high skill requirements and sample dripping in existing technologies are solved, thereby improving experimental efficiency and effectiveness.
Patent Information
- Application Number
- CN202422906965.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-27
AI Technical Summary
In existing biochemical research, sample extraction devices require a high level of skill from the operators, and sample dripping is prone to occur during the extraction and transfer process, increasing the labor intensity of the experimenters and resulting in poor effectiveness.
A biochemical sample extraction device was designed, which uses a sealing plate and an electric push rod assembly to automatically control the extraction and transfer of samples, reduce manual operation, and prevent sample dripping through the sealing plate.
It automates the sample extraction and transfer process, avoids sample dripping, reduces the workload of laboratory personnel, and improves the effectiveness of use.
Smart Images

Figure CN223592687U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of biochemistry inspection, specifically relates to a biochemistry sample extraction device. BACKGROUND
[0002] With the development of molecular biology technology, the hospital inspectors, forensic doctors and scientific researchers engaged in molecular biology research carry out a large number of experiments on human genomic DNA as the research object, and a large number of scientific research and clinical research are carried out on human genomic DNA as the template, so as to provide a large amount of experimental data for human health, or provide diagnosis and medication help for DNA detection results.
[0003] At present, when the biochemistry research sample is extracted, a device composed of a glass suction tube and a liquid suction air bag is generally used for sample extraction operation, but this extraction device requires high skill proficiency of the worker, and the worker needs to hold a test tube or a storage bottle while extracting the sample, which increases the labor intensity of the experimental personnel, and there is sample dripping during the extraction and transfer process, and the use effect is not good enough. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a biochemistry sample extraction device to solve the above-mentioned problems in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a biochemistry sample extraction device, comprising:
[0006] The extraction seat is provided with a plurality of sample bottles and a detection test tube at the top edge, a rotating rod is arranged at the middle of the top end of the extraction seat, a support plate is fixedly arranged at the top end of the rotating rod, a first electric push rod is fixedly arranged at the bottom of one end of the support plate, a first connecting plate is fixedly arranged at the bottom end of the first electric push rod, a second connecting plate is arranged at the bottom of the first connecting plate, four connecting rods are fixedly arranged between the edges of the first connecting plate and the second connecting plate;
[0007] The extraction transfer tube penetrates through the middle of the second connecting plate at the top end, an extraction transfer tube is arranged inside the extraction transfer tube, an extraction transfer tube is arranged at the bottom end of the extraction transfer tube, a movable plate is arranged at the bottom end of the extraction transfer tube, a communication port is arranged in the middle of the movable plate, an adjusting groove is arranged in the movable plate, the adjusting groove is in communication with the inside of the communication port, a plugging plate is arranged inside the overlapping part of the adjusting groove and the communication port, and a position adjusting assembly is connected to the plugging plate.
[0008] Preferably, the position adjusting assembly comprises a threaded rod arranged inside the adjusting groove, a threaded groove is arranged on the blocking plate, one end of the threaded rod extends into the threaded groove and is connected with the threaded groove through threads, the other end of the threaded rod penetrates through one side of the movable plate and is rotatably connected with the movable plate, a first motor is fixedly arranged on one side of the movable plate, and the output shaft of the first motor is fixedly connected with the other end of the threaded rod, so that the position of the blocking plate is adjusted.
[0009] Preferably, two guide rods are fixedly arranged at the top end of the movable plate, the two guide rods are arranged on the two sides of the extraction and transfer pipe respectively, the top end of each guide rod penetrates through the second connecting plate and the first connecting plate and extends to the top of the first connecting plate, a connecting block is fixedly arranged at the top end of each guide rod, and a spring is sleeved around the outer end of each guide rod, the two ends of the spring are fixedly connected with the bottom end of the connecting block and the top end of the first connecting plate respectively, so that the movable plate is guided to move.
[0010] Preferably, the pumping assembly comprises a second electric push rod fixedly arranged on the first connecting plate, and a piston plate is arranged inside the extraction and transfer pipe, one end of the telescopic part of the second electric push rod extends into the extraction and transfer pipe and is fixedly connected with the piston plate, so that the sample can be pumped into or out of the extraction and transfer pipe.
[0011] Preferably, a plurality of first placing grooves and a second placing groove are arranged at the top edge of the extraction seat, the bottom end of the sample bottle extends into the first placing groove, and the bottom end of the second placing groove extends into the detection test tube, so that the sample bottle and the detection test tube are placed.
[0012] Preferably, a cavity is arranged inside the extraction seat, a second motor is fixedly arranged inside the cavity, the bottom end of the rotating rod penetrates through the top end of the extraction seat and is rotatably connected with the top end of the extraction seat, and the output shaft of the second motor is fixedly connected with the bottom end of the rotating rod, so that the rotating rod and the structures thereon are driven to rotate.
[0013] In the above technical solution, the technical effects and advantages of the present application are provided.
[0014] The bottom end of the extraction and transfer pipe is blocked by the blocking plate, so that the sample dripping during the sample extraction and transfer process can be avoided, the whole sample extraction and transfer process does not need to be manually performed by the experimental personnel, the labor intensity of the experimental personnel is reduced, and the overall use effect is good. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.
[0016] Figure 1 It is the whole structure schematic view of the utility model;
[0017] Figure 2 It is the first electric push rod, the first connecting plate, the second connecting plate and the extraction transfer pipe connecting structure schematic view of the utility model;
[0018] Figure 3 It is the first connecting plate and the second connecting plate three-dimensional section view structure schematic view of the utility model;
[0019] Figure 4 It is the movable plate three-dimensional section view structure schematic view of the utility model;
[0020] Figure 5 It is the extraction transfer pipe three-dimensional section view structure schematic view of the utility model;
[0021] Figure 6 It is the extraction seat three-dimensional structure schematic view of the utility model;
[0022] Figure 7 It is the extraction seat three-dimensional section view structure schematic view of the utility model.
[0023] Mark explanation:
[0024] 1, extraction seat;2, sample bottle;3, detection test tube;4, rotating rod;5, support plate;6, first electric push rod;7, first connecting plate;8, second connecting plate;9, connecting rod;10, extraction transfer pipe;11, movable plate;12, communication port;13, adjusting groove;14, plugging plate;15, threaded rod;16, threaded groove;17, first motor;18, guide rod;19, connecting block;20, spring;21, second electric push rod;22, piston plate;23, first placement groove;24, second placement groove;25, cavity;26, second motor. Specific implementation
[0025] In order to make the person skilled in the art better understand the technical scheme of the utility model, the utility model will be introduced further in detail below in conjunction with the drawings.
[0026] The utility model provides a kind of biochemical sample extraction device as Figures 1 to 7 As shown in the figure, comprising:
[0027] The extraction seat 1 is provided with a plurality of sample bottles 2 and a detection test tube 3 at the top edge of the extraction seat 1, a rotating rod 4 is arranged at the middle of the top of the extraction seat 1, a supporting plate 5 is fixedly arranged at the top of the rotating rod 4, a first electric push rod 6 is fixedly arranged at one end of the bottom of the supporting plate 5, a first connecting plate 7 is fixedly arranged at the bottom of the first electric push rod 6, a second connecting plate 8 is arranged at the bottom of the first connecting plate 7, and four connecting rods 9 are fixedly arranged between the edges of the first connecting plate 7 and the second connecting plate 8.
[0028] The extraction transfer pipe 10 penetrates through the middle of the second connecting plate 8 at the top, the extraction transfer pipe 10 is provided with a pumping assembly inside, the extraction transfer pipe 10 is provided with a movable plate 11 at the bottom, a communication port 12 is arranged in the middle of the movable plate 11, an adjusting groove 13 is arranged in the inside of the movable plate 11 and communicates with the inside of the communication port 12, a blocking plate 14 is arranged in the inside of the overlapping part of the adjusting groove 13 and the communication port 12, a position adjusting assembly is connected to the blocking plate 14, the position adjusting assembly comprises a threaded rod 15 arranged in the adjusting groove 13, a threaded groove 16 is arranged on the blocking plate 14, one end of the threaded rod 15 extends into the inside of the threaded groove 16 and is connected by threads between the threaded groove 16, the other end of the threaded rod 15 penetrates through one side of the movable plate 11 and is rotatably connected with the movable plate 11, a first motor 17 is fixedly arranged at one side of the movable plate 11, and the output shaft of the first motor 17 is fixedly connected with the other end of the threaded rod 15.
[0029] The top of the movable plate 11 is fixedly provided with two guide rods 18, the two guide rods 18 are respectively arranged on both sides of the extraction transfer pipe 10, the top of the guide rod 18 penetrates through the second connecting plate 8 and the first connecting plate 7 and extends to the top of the first connecting plate 7, a connecting block 19 is fixedly arranged at the top of the guide rod 18, a spring 20 is sleeved on the outer end of the guide rod 18, and the two ends of the spring 20 are respectively fixedly connected with the bottom end of the connecting block 19 and the top end of the first connecting plate 7.
[0030] The pumping assembly comprises a second electric push rod 21 fixedly arranged on the first connecting plate 7, a piston plate 22 is arranged in the inside of the extraction transfer pipe 10, and one end of the telescopic part of the second electric push rod 21 extends into the inside of the extraction transfer pipe 10 and is fixedly connected with the piston plate 22.
[0031] A plurality of first placing grooves 23 and a second placing groove 24 are arranged at the top edge of the extraction seat 1, the bottom end of the sample bottle 2 extends into the inside of the first placing groove 23, the bottom end of the second placing groove 24 extends into the inside of the detection test tube 3, a cavity 25 is arranged in the inside of the extraction seat 1, a second motor 26 is fixedly arranged in the inside of the cavity 25, the bottom end of the rotating rod 4 penetrates through the top of the extraction seat 1 and is rotatably connected with the top of the extraction seat 1, and the output shaft of the second motor 26 is fixedly connected with the bottom end of the rotating rod 4.
[0032] The first motor 17 is started, the output shaft of the first motor 17 drives the threaded rod 15 to rotate, since the threaded groove 16 is connected with the threaded rod 15 through the thread, the blocking plate 14 moves away from the inside of the communication port 12 along with the rotation of the threaded rod 15, the first electric push rod 6 is started, the first electric push rod 6 drives the first connecting plate 7, the second connecting plate 8 and the extraction transfer pipe 10 to move downwards, the movable plate 11 is blocked by the top end of the sample bottle 2, the bottom end of the extraction transfer pipe 10 penetrates into the inside of the communication port 12 and extends into the inside of the sample bottle 2, during the descending process of the extraction transfer pipe 10, the guide rod 18 drives the connecting block 19 to stretch the spring 20, the second electric push rod 21 is started, the second electric push rod 21 drives the piston plate 22 to move upwards, at this moment, the sample in the inside of the sample bottle 2 is sucked into the inside of the extraction transfer pipe 10, after the sample is extracted, the first electric push rod 6 drives the first connecting plate 7, the second connecting plate 8 and the extraction transfer pipe 10 to move upwards, and the movable plate 11 returns to the bottom end of the extraction transfer pipe 10 under the elastic force of the spring 20, at this moment, the output shaft of the first motor 17 reversely rotates, the blocking plate 14 returns to the inside of the communication port 12, the blocking plate 14 blocks the bottom end of the extraction transfer pipe 10, the second motor 26 is started, the output shaft of the second motor 26 drives the rotating rod 4 to rotate, the rotating rod 4 drives the supporting plate 5 and the first electric push rod 6 and the structure thereon to rotate, when the bottom end of the extraction transfer pipe 10 moves to the top end of the detection test tube 3, the bottom end of the movable plate 11 abuts against the top end of the detection test tube 3, then the blocking plate 14 is adjusted out of the inside of the communication port 12, the bottom end of the extraction transfer pipe 10 is inserted into the inside of the detection test tube 3, so that the sample in the inside of the extraction transfer pipe 10 is pushed into the inside of the detection test tube 3.
[0033] The blocking plate 14 is used for blocking the bottom end of the extraction transfer pipe 10, the sample dripping during the extraction and transfer process can be avoided, the whole sample extraction and transfer process does not need to be manually operated by the experimenters, the labor intensity of the experimenters is reduced, the overall use effect is good, the embodiment specifically solves the problems that, in the prior art, the biological chemistry research sample is generally extracted by using a device composed of a glass suction tube and a liquid suction air bag, the skill proficiency of the worker is required to be high, the worker needs to hold the test tube or the storage bottle while extracting the sample, the labor intensity of the experimenters is increased, and the sample drips during the extraction and transfer process, and the use effect is not good.
[0034] The above only describes some exemplary embodiments of the utility model in a descriptive manner, without doubt, for ordinary skilled person in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.
Claims
1. A biochemical sample extraction device, characterized by, The utility model relates to a kind of extraction seat (1), the extraction seat (1) top edge is equipped with multiple sample bottles (2) and a detection test tube (3), the extraction seat (1) top middle part is equipped with rotating rod (4), the rotating rod (4) top is fixedly provided with support plate (5), the support plate (5) one end bottom is fixedly provided with first electric push rod (6), the first electric push rod (6) bottom is fixedly provided with first connecting plate (7), the first connecting plate (7) bottom is equipped with second connecting plate (8), four connecting rods (9) are fixedly provided between the first connecting plate (7) and second connecting plate (8) edge. Extraction transfer pipe (10), the extraction transfer pipe (10) top passes through the middle part of second connecting plate (8), the extraction transfer pipe (10) inside is equipped with pumping assembly, the extraction transfer pipe (10) bottom is equipped with movable plate (11), the movable plate (11) middle part is equipped with intercommunication (12), the movable plate (11) inside is equipped with with intercommunication (12) inside intercommunication of adjusting groove (13), the adjusting groove (13) and intercommunication (12) coincidence place inside is equipped with blocking plate (14), the blocking plate (14) is connected with position adjusting assembly. The position adjusting assembly includes a threaded rod (15) disposed within the adjusting groove (13), a threaded groove (16) is formed in the blocking plate (14), one end of the threaded rod (15) extends into the threaded groove (16) and is threadedly connected with the threaded groove (16), the other end of the threaded rod (15) passes through one side of the movable plate (11) and is rotatably connected with the movable plate (11), a first motor (17) is fixedly provided on one side of the movable plate (11), and the output shaft of the first motor (17) is fixedly connected with the other end of the threaded rod (15).
2. A biochemical sample extraction device according to claim 1, characterised in that: The movable plate (11) top is fixedly provided with two guide rods (18), and the two guide rods (18) are respectively arranged on both sides of the extraction transfer pipe (10), the guide rods (18) top passes through second connecting plate (8) and first connecting plate (7) and extends to the top of first connecting plate (7), the guide rods (18) top is fixedly provided with connecting block (19), the guide rods (18) outer end is sleeved with spring (20), and the two ends of the spring (20) are respectively fixedly connected with the bottom end of the connecting block (19) and the top end of the first connecting plate (7).
3. A biochemical sample extraction device according to claim 1, wherein: The pumping assembly includes a second electric push rod (21) fixedly provided on the first connecting plate (7), and a piston plate (22) is arranged in the extraction transfer pipe (10), and one end of the telescopic part of the second electric push rod (21) extends into the extraction transfer pipe (10) and is fixedly connected with the piston plate (22).
4. A biochemical sample extraction device according to claim 1, wherein: The extraction seat (1) top edge is equipped with multiple first placing grooves (23) and a second placing groove (24), the sample bottle (2) bottom extends into the first placing groove (23) inside, and the second placing groove (24) bottom extends into the detection test tube (3) inside.
5. A biochemical sample extraction device according to claim 1, wherein: 6. A biochemical sample extraction device according to claim 1, wherein: The extraction seat (1) is internally provided with a cavity (25), the second motor (26) is fixedly arranged in the cavity (25), the bottom end of the rotating rod (4) penetrates through the top end of the extraction seat (1) and is rotationally connected with the top end of the extraction seat (1), and the output shaft of the second motor (26) is fixedly connected with the bottom end of the rotating rod (4).