Biological sampling automatic push rod
The automatic sampling of the biological sampler is achieved by using a transmission gear system driven by an electric motor, which solves the problems of inconsistency and cross-contamination caused by manual operation and improves the accuracy and efficiency of the sampling process.
Patent Information
- Application Number
- CN202423046391.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing biosamplers rely on manual operation, which leads to inconsistent sample collection, long processing time, low efficiency, and easy introduction of cross-contamination, especially affecting the authenticity of samples when sterile conditions are insufficient.
The transmission gear system driven by the motor drives the second transmission gear through the first transmission gear, thereby controlling the up and down displacement of the threaded rod, realizing the precise movement of the push rod, and driving the sampler to perform automatic sampling.
It achieves accuracy and efficiency in automated sampling, reduces human error and the risk of cross-contamination, and improves sample quality and the reliability of the sampling process.
Smart Images

Figure CN223565272U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of biological sampling technology, and in particular to an automatic push rod for biological sampling. Background Technology
[0002] Biological samplers are instruments used to collect biological samples. They enter the sample medium (such as human tissue and biological tissue) through a sampling head (such as a needle or probe) to collect samples. These instruments are commonly used in laboratories, medical fields, and biopharmaceuticals.
[0003] Most existing biological samplers are manually operated. Due to their reliance on the operator's skills and experience, manual sampling may lead to inconsistencies and biases in sample collection, such as uncertainties in sampling depth, sample volume, and sampling location. The manual sampling process is usually time-consuming, especially when multiple repeated samplings or large-batch sampling are required. The work efficiency is relatively low, and it is difficult to completely avoid cross-contamination during manual sampling. In particular, when operating under strict aseptic conditions, exogenous contamination may be introduced, affecting the authenticity of the sample.
[0004] Therefore, how to provide an automated biological sampling push rod is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] One objective of this invention is to provide an automatic biological sampling pusher. This invention features automatic sampling capabilities, enabling accurate and efficient delivery of the sampler. It can precisely control the movement distance and force of the pusher, ensuring the accuracy of the sampling process, reducing sample damage, and improving sample quality. Simultaneously, by automating the sampling process, it reduces errors and the risk of cross-contamination caused by manual operation. A motor drives a first transmission gear, which in turn drives a second transmission gear. The rotation of the second transmission gear causes a threaded rod to move up and down, which in turn moves a pusher rod, which in turn moves the sampler to collect the sample.
[0006] An automatic bio-sampling push rod according to an embodiment of the present utility model includes a support, a power component, a limiting component, and an execution component, wherein the power component is fixedly installed on the top of the support, the limiting component is fixedly installed on the top of the support, and the execution component is rotatably installed on the support.
[0007] The actuating component includes a push rod, which is fixedly mounted below the support.
[0008] Furthermore, mounting bases are fixedly provided on all four sides of the support.
[0009] Further, the power assembly comprises a motor, a first transmission gear, a needle bearing, a connecting cylinder, a second transmission gear and a locking nut, the motor is fixedly installed at the top of the support, the first transmission gear is rotatably installed at the bottom of the support, the top of the first transmission gear is fixedly installed on the rotating shaft of the motor, the needle bearing is rotatably installed in the support, the outer wall of the connecting cylinder is rotatably installed in the needle bearing, the second transmission gear is fixedly installed at the bottom of the connecting cylinder and is engaged with the first transmission gear, and the locking nut is threadedly fastened at the top of the connecting cylinder.
[0010] Further, the limiting assembly comprises a limiting support, a limiting plate and a limiting column, the bottom of the limiting support is fixedly installed at the top of the support, the limiting plate is fixedly installed on the limiting support, and the limiting column is fixedly installed at the top of the limiting support.
[0011] Further, the executing assembly comprises a threaded rod, a limiting piece and a limiting groove, the threaded rod is threadedly installed in the second transmission gear, the bottom of the threaded rod is installed on the push rod, the limiting piece is fixedly installed at the top of the threaded rod, the limiting groove is formed in the limiting piece and is slidably connected with the limiting plate in the height direction.
[0012] The biological sampling automatic push rod has the advantages that:
[0013] The biological sampling automatic push rod has the advantages that:
[0014] The biological sampling automatic push rod has the advantages that: BRIEF DESCRIPTION OF DRAWINGS
[0015] The drawings are used to provide a further understanding of the biological sampling automatic push rod, constitute a part of the specification, are used together with the embodiments of the biological sampling automatic push rod to explain the biological sampling automatic push rod and do not constitute a limitation on the biological sampling automatic push rod.
[0016] Fig. 1 The biological sampling automatic push rod has the advantages that:
[0017] Fig. 2 The biological sampling automatic push rod has the advantages that: The biological sampling automatic push rod has the advantages that:
[0018] Fig. 3 The utility model provides a kind of biological sampling automatic push rod's support section view.
[0019] In the drawing: 1, support; 1.1, mounting seat; 2, power component; 2.1, motor; 2.2, first transmission gear; 2.3, needle bearing; 2.4, connecting barrel; 2.5, second transmission gear; 2.6, locking nut; 3, limiting component; 3.1, limiting support; 3.2, limiting plate; 3.3, limiting column; 4, execution component; 4.1, push rod; 4.2, threaded rod; 4.3, limiting sheet; 4.4, limiting groove. DETAILED DESCRIPTION
[0020] The utility model will be further explained in detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only show the basic structure of the utility model in a schematic manner, so they only show the structure related to the utility model.
[0021] Please refer to Figs. 1 to 3 The utility model provides a kind of biological sampling automatic push rod, including support 1, power component 2, limiting component 3 and execution component 4, wherein, power component 2 is fixedly installed at the top of support 1, limiting component 3 is fixedly installed at the top of support 1, and execution component 4 is rotatably installed on support 1;Execution component 4 includes push rod 4.1, push rod 4.1 is fixedly installed below support 1, and sampler is installed at the bottom of push rod 4.1;The sampler is controlled by push rod 4.1 to sample human tissue or biological tissue, to ensure the accuracy of the sampling process, reduce the damage to the sample, improve the sample quality, and at the same time, to complete the sampling process automatically, reduce the error and cross-contamination risk caused by manual operation;The four sides of support 1 are fixedly provided with mounting seat 1.1, and mounting seat 1.1 is used to be installed on external mechanical equipment.
[0022] Specifically, power component 2 includes motor 2.1, first transmission gear 2.2, needle bearing 2.3, connecting barrel 2.4, second transmission gear 2.5 and locking nut 2.6, wherein, motor 2.1 is fixedly installed at the top of support 1, motor 2.1 is a driving motor, first transmission gear 2.2 is rotatably installed at the bottom of support 1, the top of first transmission gear 2.2 is fixedly installed on the rotating shaft of motor 2.1, needle bearing 2.3 is rotatably installed in support 1, the outer wall of connecting barrel 2.4 is rotatably installed in needle bearing 2.3, second transmission gear 2.5 is fixedly installed at the bottom of connecting barrel 2.4, and second transmission gear 2.5 is engaged with first transmission gear 2.2, needle bearing 2.3 keeps connecting barrel 2.4 and second transmission gear 2.5 free to rotate, and locking nut 2.6 is threadedly fastened at the top of connecting barrel 2.4.
[0023] More specifically, the limiting assembly 3 comprises a limiting support 3.1, a limiting plate 3.2 and a limiting column 3.3, wherein the bottom of the limiting support 3.1 is fixedly installed on the top of the support 1, the limiting plate 3.2 is fixedly installed on the limiting support 3.1, the limiting plate 3.2 is used for axial limiting of the limiting sheet 4.3, the limiting column 3.3 is fixedly installed on the top of the limiting support 3.1, and the limiting column 3.3 limits the height of the upward movement of the threaded rod 4.2; the executing assembly 4 comprises a threaded rod 4.2, a limiting sheet 4.3 and a limiting groove 4.4, wherein the threaded rod 4.2 is screwedly installed in the second transmission gear 2.5, the bottom of the threaded rod 4.2 is installed on the push rod 4.1, the limiting sheet 4.3 is fixedly installed on the top of the threaded rod 4.2, the limiting groove 4.4 is formed in the limiting sheet 4.3, the limiting groove 4.4 is slidably connected with the limiting plate 3.2 in the height direction, the limiting plate 3.2 of the limiting support 3.1 is clamped in the limiting groove 4.4 of the limiting sheet 4.3, and the threaded rod 4.2 is limited from rotating in the axial direction.
[0024] Further, by starting the motor 2.1, the rotation of the rotating shaft of the motor 2.1 drives the rotation of the first transmission gear 2.2, the first transmission gear 2.2 is meshed with the second transmission gear 2.5, the rotation of the first transmission gear 2.2 can drive the rotation of the second transmission gear 2.5, the rotation of the first transmission gear 2.2 drives the rotation of the second transmission gear 2.5, and the rotation of the second transmission gear 2.5 drives the rotation of the connecting cylinder 2.4, and the connecting cylinder 2.4 is freely rotatable in the needle bearing 2.3.
[0025] Further, the threaded rod 4.2 is displaced from the center of the second transmission gear 2.5, and the threaded rod 4.2 is screwedly connected with the second transmission gear 2.5, the top of the threaded rod 4.2 is fixedly provided with the limiting sheet 4.3, one side of the limiting sheet 4.3 is provided with the limiting groove 4.4, and the limiting plate 3.2 of the limiting support 3.1 is clamped in the limiting groove 4.4.
[0026] Further, the second transmission gear 2.5 rotates, the threaded rod 4.2 is vertically upwardly or downwardly displaced in the height direction because the limiting plate 3.2 of the limiting support 3.1 is clamped in the limiting groove 4.4 of the limiting sheet 4.3, and the upward or downward displacement of the threaded rod 4.2 drives the sampler to sample.
[0027] The utility model discloses a function can automatically sample, can accurately, efficient delivery sampler, can accurately control the moving distance and strength of push rod, ensure the accuracy of sampling process, reduce the damage to the sample, improve sample quality, complete sampling process automatically, reduce the error and cross contamination risk brought by manual operation.
[0028] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A biological sampling automatic push rod, characterized in that, It includes a support (1), a power component (2), a limiting component (3) and an actuation component (4), wherein the power component (2) is fixedly installed on the top of the support (1), the limiting component (3) is fixedly installed on the top of the support (1), and the actuation component (4) is rotatably installed on the support (1); The actuation component (4) includes a push rod (4.1), which is fixedly installed below the support (1).
2. The automatic push rod for biological sampling according to claim 1, wherein Mounting seats (1.1) are fixedly provided on the four sides of the support (1).
3. The automatic biological sampling push rod according to claim 1, characterized in that, The power assembly (2) includes a motor (2.1), a first transmission gear (2.2), a needle roller bearing (2.3), a connecting cylinder (2.4), a second transmission gear (2.5), and a locking nut (2.6). The motor (2.1) is fixedly mounted on the top of the support (1), the first transmission gear (2.2) is rotatably mounted on the bottom of the support (1), the top of the first transmission gear (2.2) is fixedly mounted on the shaft of the motor (2.1), the needle roller bearing (2.3) is rotatably mounted inside the support (1), the outer wall of the connecting cylinder (2.4) is rotatably mounted inside the needle roller bearing (2.3), the second transmission gear (2.5) is fixedly mounted on the bottom of the connecting cylinder (2.4), and the second transmission gear (2.5) meshes with the first transmission gear (2.2). The locking nut (2.6) is threadedly fastened to the top of the connecting cylinder (2.4).
4. The automatic biological sampling push rod according to claim 1, characterized in that, The limiting component (3) includes a limiting bracket (3.1), a limiting plate (3.2), and a limiting post (3.3). The bottom of the limiting bracket (3.1) is fixedly installed on the top of the support (1), the limiting plate (3.2) is fixedly installed on the limiting bracket (3.1), and the limiting post (3.3) is fixedly installed on the top of the limiting bracket (3.1).
5. The automatic biological sampling push rod according to claim 1, characterized in that, The actuating component (4) includes a threaded rod (4.2), a limiting plate (4.3), and a limiting groove (4.4). The threaded rod (4.2) is threadedly installed in the second transmission gear (2.5), and the bottom of the threaded rod (4.2) is installed on the push rod (4.1). The limiting plate (4.3) is fixedly installed on the top of the threaded rod (4.2). The limiting groove (4.4) is opened on the limiting plate (4.3), and the limiting groove (4.4) is slidably connected to the limiting plate (3.2) in the height direction.