Pharmaceutical sampler
By introducing a self-righting structure and counterweight design into the pharmaceutical sampler, the problem of accumulation and blockage caused by air resistance and particle interaction during the sampling process of irregular particulate materials is solved, achieving uniform dispersion and efficient filtration of materials.
Patent Information
- Application Number
- CN202520423559.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Irregular particulate materials are prone to unstable movement trajectories during sampling due to air resistance and inter-particle interactions, which can easily lead to accumulation at the inlet corners, causing filter pore blockage and reducing filtration efficiency.
The sampler employs a self-righting structure and counterweight design, utilizing a center of gravity design and inertial swaying mechanism to ensure stability and uniformity. The combination of flow guide holes and filter holes prevents material accumulation and clogging.
This effectively avoids the accumulation and blockage of materials in the sampler, ensuring the uniformity of the sampling process and the filtration efficiency.
Smart Images
Figure CN223897102U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to telescopic pillar technical field, concretely is a pharmacy sampler. BACKGROUND
[0002] The pharmacy sampler is a tool for collecting various drug samples in the field of pharmacy, and the single-point sampler is one of them, which is a tool for collecting samples at a single location. It is usually composed of a shell, an inner rod and a sampling module. The shell serves as protection and support. The inner rod can move within the shell to control the opening and closing of the sampling module. The sampling module is the part that directly obtains the sample. The sampling volume can be adjusted by replacing sampling modules of different specifications.
[0003] Due to the irregular shape of the material particles, such as flaky, long strip or with sharp corners, they are more easily affected by air resistance and particle interaction during the falling process, making their motion trajectory unstable and easily deviating from the center position to fall at the corner of the inlet. The material is concentrated at the corner of the inlet, which may cause the material accumulation speed at this point to be much higher than that in other areas. Due to the low void ratio and close interlocking between irregular particles, the filter holes are easily blocked, reducing the filtering efficiency.
[0004] Therefore, a pharmacy sampler is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a pharmacy sampler to solve the problem.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0007] A pharmacy sampler includes a separator, a push rod assembly is provided at one end of the separator, a sampling tube is fixedly connected at the other end of the push rod assembly through the separator, and a sampling head is fixedly connected at the middle position of the sampling tube. The sampling head includes a collection groove, a support plate is fixedly connected to the inner bottom of the collection groove, and a tumbler structure is provided at the upper end of the support plate. The tumbler structure includes a first counterweight, a protective shell is fixedly connected to the outer side of the first counterweight, a flow guide hole is formed in the lower end of the protective shell, a guide plate is fixedly connected to the upper end of the protective shell, and a filter device is fixedly connected to the inner side of the upper end of the protective shell. The filter device includes a filter plate, first and second filter holes are formed in the inner side of the filter plate, a straight hole is formed in the center position of the filter plate, a limiting plate is provided at the upper end of the straight hole, a connecting rope is fixedly connected to the lower end of the limiting plate, and a second counterweight is fixedly connected to the connecting rope through the straight hole.
[0008] As a further optimization of the utility model, the other end of the sampling tube is fixedly connected to a sealing plate, the lower end of the separator is fixedly connected to a powder collector, and the vertical cross-sections of the collection groove and the protective shell are isosceles trapezoidal in shape.
[0009] As the further optimization of the utility model, wherein: the shape of the vertical section of the support plate is T-shaped, the upper end surface of the support plate is arc-shaped, the upper end surface of the support plate is in close contact with the bottom surface of the first counterweight block, and the gravity centers of the support plate and the first counterweight block are located on the same vertical line.
[0010] As the further optimization of the utility model, wherein: the shape of the vertical section of the upper part of the first counterweight block is triangular, the shape of the vertical section of the lower part of the first counterweight block is semicircular, and the lower end of the protective shell is arranged at the connection between the upper part and the lower part of the first counterweight block.
[0011] As the further optimization of the utility model, wherein: a plurality of flow guide holes are arranged, the inclined edges of the flow guide holes are in close contact with the surface of the upper part of the first counterweight block, the flow guide holes are arranged in a circumferential array at the lower end of the protective shell, and the flow guide holes are in the shape of a cylinder.
[0012] As the further optimization of the utility model, wherein: a plurality of first filter holes and a plurality of second filter holes are arranged, the first filter holes and the second filter holes are uniformly and equidistantly arranged on the inner side of the filter plate, the first filter holes are in the shape of a cuboid, the lengths of the first filter holes are arranged in equal ratios, and the second filter holes are in the shape of a cylinder.
[0013] As the further optimization of the utility model, wherein: the two ends of the straight hole are in the shape of an arc structure, the second counterweight block is in the shape of a sphere, and the gravity centers of the second counterweight block and the first counterweight block are located on the same vertical line.
[0014] Compared with the prior art, the utility model has the advantages that:
[0015] In the utility model, the gravity center of the tumbler structure is designed to be in close contact with the arc surface of the support plate, so that the guide plate always remains stable and faces upward, the second counterweight block of the filtering device is hung in the straight hole through the connecting rope, and the gravity centers of the first counterweight block and the second counterweight block are collinear. When the material impact causes tilting, the inertia prolongs the rocking righting time, buffers the impact force, provides more sufficient dynamic processing conditions for material filtering, avoids the blocking caused by local accumulation, and ensures more uniform sampling. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is an overall structural schematic view of the utility model;
[0017] Figure 2 It is an overall structural schematic view of the sampling head of the utility model;
[0018] Figure 3 It is a cross-sectional structural schematic view of the collecting groove of the utility model;
[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the protective shell of this utility model;
[0020] Figure 5 This is a schematic diagram of the installation position of the second counterweight block of this utility model;
[0021] Figure 6 This utility model Figure 5 Schematic diagram of the structure at point A in the middle.
[0022] In the diagram: 1. Separator; 2. Push rod assembly; 3. Sampling tube;
[0023] 4. Sampling head; 41. Collection tank; 42. Support plate; 43. Self-righting structure; 431. First counterweight; 432. Protective shell; 433. Flow guide hole; 434. Guide plate; 44. Filtering device; 441. Filter plate; 442. First filter hole; 443. Second filter hole; 444. Straight hole; 445. Limiting plate; 446. Connecting rope; 447. Second counterweight;
[0024] 5. Sealing plate;
[0025] 6. Powder collector. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0028] Please see Figures 1-6 This utility model provides a technical solution:
[0029] A pharmaceutical sampler includes a separator 1, with a push rod assembly 2 at one end of the separator 1. A sampling tube 3 is fixedly connected to the other end of the push rod assembly 2 through the separator 1. A sampling head 4 is fixedly connected to the middle of the sampling tube 3. The sampling head 4 includes a collection groove 41, with a support plate 42 fixedly connected to the bottom inner side of the collection groove 41. A self-righting structure 43 is provided on the upper end of the support plate 42. The self-righting structure 43 includes a first counterweight 431, with a protective shell 432 fixedly connected to the outer side of the first counterweight 431. A flow guide is provided at the lower end of the protective shell 432. A guide plate 434 is fixedly connected to the upper end of the protective shell 432, and a filter device 44 is fixedly connected to the inner side of the upper end of the protective shell 432. The filter device 44 includes a filter plate 441, a first filter hole 442 and a second filter hole 443 are opened on the inner side of the filter plate 441, a straight hole 444 is opened at the center of the filter plate 441, a limiting plate 445 is provided at the upper end of the straight hole 444, a connecting rope 446 is fixedly connected to the lower end of the limiting plate 445, and a second counterweight 447 is fixedly connected to the connecting rope 446 through the straight hole 444.
[0030] As a further implementation of the above technical solution: a number of guide holes 433 are provided, the inclined edge of the guide holes 433 is in contact with the surface of the upper part of the first counterweight 431, the guide holes 433 are distributed in a circumferential array at the lower end of the protective shell 432, the guide holes 433 are cylindrical, and the guide holes 433 use gravity and structural guidance to evenly disperse the material into the inner side of the collection tank 41, so as to avoid accumulation in the protective shell 432;
[0031] As a further implementation of the above technical solution: a sealing plate 5 is fixedly connected to the other end of the sampling tube 3, and a powder collector 6 is fixedly connected to the lower end of the separator 1. The vertical cross-sections of the collecting tank 41 and the protective shell 432 are both isosceles trapezoids. The collecting tank 41 and the protective shell 432 can increase the material contact area and facilitate the uniform distribution of the material.
[0032] As a further implementation of the above technical solution: the two ends of the straight hole 444 are arc-shaped with the lower end of the limiting plate 445, the second counterweight 447 is spherical, the center of gravity of the second counterweight 447 and the first counterweight 431 are on the same vertical line, the straight hole 444 cooperates with the limiting plate 445 to limit the displacement range of the second counterweight 447, thereby extending the swing time and improving the material handling effect;
[0033] As a further implementation of the above technical solution: the upper part of the first counterweight 431 has a triangular vertical cross-section, and the lower part of the first counterweight 431 has a semi-circular vertical cross-section. The lower end of the protective shell 432 is located at the connection between the upper and lower parts of the first counterweight 431. The first counterweight 431 fits into the arc-shaped surface of the support plate 42. When tilted to a certain angle, gravity immediately generates a reverse restoring torque, which swings repeatedly to prevent material from accumulating on the surface of the filter plate 441 and causing blockage.
[0034] As a further implementation of the above technical solution: the vertical cross-section of the support plate 42 is T-shaped, the upper surface of the support plate 42 is arc-shaped, the upper surface of the support plate 42 is in close contact with the bottom surface of the first counterweight 431, the center of gravity of the support plate 42 and the first counterweight 431 are located on the same vertical line, the T-shaped vertical cross-section and arc-shaped upper surface of the support plate 42, together with the center of gravity distribution of the first counterweight 431, make the roly-poly structure 43 remain upright after repeated swinging, and ensure that the guide plate 434 always remains stable and facing upward;
[0035] As a further implementation of the above technical solution: a plurality of first filter holes 442 and second filter holes 443 are provided. The first filter holes 442 and second filter holes 443 are evenly and equidistantly distributed on the inner side of filter plate 441. The first filter holes 442 are set as cuboids, and the lengths of the first filter holes 442 are distributed in equal proportions. The second filter holes 443 are set as cylinders. The first filter holes 442 and second filter holes 443 perform graded filtration of materials. Particles of different sizes and shapes enter the protective shell 432 through the corresponding filter holes.
[0036] Workflow: When sampling is required, the pusher assembly 2 pushes the sampling tube 3 to extend, driving the sampling head 4 to the target sampling position. Then, the material falls through the pipe to the sampling position reached by the sampling head 4. Due to the uneven distribution of airflow speed and pressure in these areas, a lateral force is generated on the material, making it easier for the material to accumulate at the corners and fall onto one side of the guide plate 434. Some of the falling material will impact the surface of the filter plate 441. When the material impacts one side of the filter plate 441 and the guide plate 434, the impact force of the falling material will cause the tumbler structure 43 to tilt. Due to the center of gravity design, the first counterweight 431 inside the tumbler structure 43 fits the arc surface of the support plate 42. When tilted at a certain angle, gravity will generate a reverse restoring torque, causing the tumbler structure 43 to swing in the opposite direction. At the same time, the second counterweight 447 is also set. The structure will swing due to inertia, making the time for the roly-poly structure 43 to swing back to its upright position longer. This creates more sufficient material processing conditions during the swinging process, effectively preventing material accumulation and blockage. During the swinging and returning to an upright position, the material that falls on the guide plate 434 falls onto the upper end of the filter plate 441. At the same time, the material on the upper end of the filter plate 441 will enter the protective shell 432 through the first filter hole 442 and the second filter hole 443. The shape of the upper part of the first counterweight block 431 can effectively guide the fallen material to the guide hole 433. The guide hole 433 can effectively disperse the material evenly and allow the material to flow steadily into the inner side of the collection tank 41 along the guide hole 433, preventing the material from accumulating in the protective shell 432. The filtered material is collected in the collection tank 41. Then, the push rod assembly 2 drives the sampling tube 3 to retract, and the sampling head 4 completes the sampling task.
[0037] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pharmaceutical sampler, comprising a separator (1), characterized in that: The separator (1) has a push rod assembly (2) at one end, and a sampling tube (3) is fixedly connected to the other end of the push rod assembly (2) through the separator (1). A sampling head (4) is fixedly connected to the middle position of the sampling tube (3). The sampling head (4) includes a collection groove (41), and a support plate (42) is fixedly connected to the bottom of the inner side of the collection groove (41). The upper end of the support plate (42) is provided with a roly-poly structure (43). The roly-poly structure (43) includes a first counterweight (431), a protective shell (432) is fixedly connected to the outside of the first counterweight (431), a guide hole (433) is opened at the lower end of the protective shell (432), a guide plate (434) is fixedly connected to the upper end of the protective shell (432), and a filter device (44) is fixedly connected to the inner side of the upper end of the protective shell (432). The filtering device (44) includes a filter plate (441), a first filter hole (442) and a second filter hole (443) are provided on the inner side of the filter plate (441), a straight hole (444) is provided at the center of the filter plate (441), a limiting plate (445) is provided at the upper end of the straight hole (444), a connecting rope (446) is fixedly connected to the lower end of the limiting plate (445), and a second counterweight (447) is fixedly connected through the straight hole (444) of the connecting rope (446).
2. A pharmaceutical sampler according to claim 1, characterized in that: The other end of the sampling tube (3) is fixedly connected to a sealing plate (5), the lower end of the separator (1) is fixedly connected to a powder collector (6), and the vertical cross-sections of the collection tank (41) and the protective shell (432) are both isosceles trapezoids.
3. A pharmaceutical sampler according to claim 1, characterized in that: The vertical cross-section of the support plate (42) is T-shaped, the upper surface of the support plate (42) is arc-shaped, the upper surface of the support plate (42) is in close contact with the bottom surface of the first counterweight (431), and the center of gravity of the support plate (42) and the first counterweight (431) are located on the same vertical line.
4. A pharmaceutical sampler according to claim 1, characterized in that: The upper part of the first counterweight (431) has a triangular vertical cross-section, and the lower part of the first counterweight (431) has a semi-circular vertical cross-section. The lower end of the protective shell (432) is located at the connection between the upper and lower parts of the first counterweight (431).
5. A pharmaceutical sampler according to claim 1, characterized in that: The guide holes (433) are provided in a plurality of them. The inclined edge of the guide holes (433) is in contact with the surface of the upper part of the first counterweight (431). The guide holes (433) are distributed in a circumferential array at the lower end of the protective shell (432). The guide holes (433) are cylindrical.
6. A pharmaceutical sampler according to claim 1, characterized in that: The first filter hole (442) and the second filter hole (443) are provided in a plurality of them. The first filter hole (442) and the second filter hole (443) are evenly and equidistantly distributed on the inner side of the filter plate (441). The first filter hole (442) is set as a cuboid and the length of the first filter hole (442) is distributed in equal proportions. The second filter hole (443) is set as a cylinder.
7. A pharmaceutical sampler according to claim 1, characterized in that: The two ends of the straight hole (444) and the lower end of the limiting plate (445) are arc-shaped. The second counterweight (447) is spherical. The center of gravity of the second counterweight (447) and the first counterweight (431) are located on the same vertical line.