Sampling device and sampling cutter head

Abstract

The utility model relates to the technical field of sampling devices, and discloses a sampling device and a sampling cutterhead, a top pressing plate matched with an inner cavity of the sampling cutterhead is arranged at a cutterhead opening in the sampling cutterhead, more than two springs are distributed on the top surface of the top pressing plate in the circumferential direction, the lower end of each spring is connected with the top pressing plate, and the upper end of each spring is connected with the inner wall of the top surface of the sampling cutterhead; during sampling, a sample is flattened and stabilized through the jacking plate, during cutting, the spring retracts, the sample enters the sampling cutter head, after cutting, the sampling cutter head is lifted, and the sample is jacked out through the spring, so that wrinkles of the thin and soft sample can be avoided, the sampling precision is improved, additional operation is not needed after sampling, the sample clamped in the sampling cutter head can be automatically jacked out, and the sampling efficiency is improved. The device has the characteristics of simple structure, low cost, convenience in use, good use effect and high practicability.

Description

Technical Field

[0001] This utility model relates to the field of sampler technology, and more specifically, to a sampler and sampler disc that prevents sample wrinkling and chuck. Background Technology

[0002] The disc sampler cuts and removes the sample by inserting a circular sampling disc into the sample. It is commonly used for sampling test samples such as fabric and cardboard. The fabric to be collected is placed between the top of the cutting base and the bottom of the circular cutting component. Then, the handle is held and lifted upwards. The circular cutting component collects the fabric in a circular sample.

[0003] Because the sampling disc has a hollow, recessed structure, the cut sample easily gets stuck inside and is difficult to remove. Manual removal also carries certain risks. In the prior art, utility model patent CN221811677U discloses a novel disc sampler that uses a column and a squeezing column within a fixed disc with a cross-shaped hole to cut and eject the sample from the disc. However, this method is complex and inconvenient to operate. Furthermore, when sampling flexible products such as non-woven fabrics, the sample still wrinkles in the middle of the sampling disc, affecting cutting accuracy.

[0004] The current rudimentary method used in the laboratory is to place a sponge inside the sampling blade. During sampling, the sponge flattens the sample. However, after a certain period of use, the sponge will sink in, and the non-woven fabric will still wrinkle, affecting the cutting accuracy. Furthermore, when used for sampling hard samples, the cut sample will get stuck in the blade, making it difficult to remove.

[0005] In view of this, the applicant has innovatively designed the disc sampler and sampling blade disc of this application, which has the characteristics of simple structure and easy use, requiring no additional operation, and can avoid sample wrinkling and sample getting stuck in the disc. Utility Model Content

[0006] The purpose of this invention is to provide a sampler and a sampling blade to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A sampler includes a fixed disk and a connecting post disposed on the fixed disk, the lower end of the connecting post being connected to a sampling blade disk.

[0009] The sampling cutter disc has a top pressure plate at the cutter disc opening that matches the inner cavity of the sampling cutter disc. The top pressure plate has two or more springs arranged circumferentially on its top surface. The lower end of each spring is connected to the top pressure plate, and the upper end is connected to the inner wall of the top surface of the sampling cutter disc. During sampling, the top pressure plate flattens and stabilizes the sample. During cutting, the springs retract, and the sample enters the sampling cutter disc. After cutting, the sampling cutter disc rises, and the springs push the sample out.

[0010] As a further preferred embodiment, the top surface of the top pressure plate is provided with columns, and the top surface of the sampling blade disk is provided with through holes corresponding to the columns. The sampling blade disk extends from the columns through the through holes, and the top of each column abuts against the bottom surface of the fixed disk.

[0011] As a further preferred embodiment, a connecting ring is provided at the top of the column, which stably connects each column, and the top surface of the connecting ring abuts against the bottom surface of the fixing plate.

[0012] Through the design of the columns and connecting rings, during downward sampling, the columns and connecting rings move downward with the sampling cutter head. During cutting, the sample enters the sampling cutter head, and the top pressure plate, columns, and connecting rings move upward. After cutting, the sampling cutter head rises, and the columns or connecting rings initially press against the bottom surface of the fixed plate. As the sampling cutter head continues to rise and reset, the top pressure plate, columns, and connecting rings, under the action of the fixed plate, move downward relative to the sampling cutter head, pushing the sample out. Even if a hard sample is stuck in the sampling cutter head, it is easier to push the sample out through the reset force of the main spring on the connecting column, avoiding the situation where the spring force inside the sampling cutter head is too weak to push the sample out. Furthermore, this structure reduces the spring force required inside the sampling cutter head, allowing the use of springs with lower spring force, thus reducing operational resistance during sampling. The connecting rings provide stable connection between the columns and have a larger contact area with the bottom surface of the fixed plate, reducing and preventing wear on the top of the columns.

[0013] This utility model features a simple structure, low cost, convenient use, good effect, and strong practicality. It can avoid wrinkles in thin and soft samples, improve sampling accuracy, and eliminate the need for additional operations after sampling. It can automatically eject the sample stuck in the sampling blade disk, making it worthy of widespread promotion and use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application;

[0015] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this application. Detailed Implementation

[0016] 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. Example

[0017] See Figure 1 A disc sampler includes a base 1, on which a sampling plate 10 is mounted. A supporting keel 2 is provided on one side of the base 1. A fixed plate 3 is mounted on the supporting keel 2 above the sampling plate 10. Hinged linkage mechanisms 4 are provided on both sides of the fixed plate 3 on the supporting keel 2. A handle operating lever 5 is mounted on the hinged linkage mechanism 4. A connecting post 6 passes through the fixed plate 3. A limiting element is provided on the connecting post 6. A main spring 7 is provided between the limiting element and the fixed plate 3. A [missing information - likely a device or component] is provided at the lower end of the connecting post 6. The sampling cutter head 9 has a threaded sleeve 8 at the center of its top surface. The lower end of the connecting column 6 is connected to the sampling cutter head 9 through the threaded sleeve 8, which facilitates the disassembly, replacement and maintenance of the sampling cutter head 9. In use, by operating the handle 5, the hinged linkage mechanism 4 is pressed down on the connecting column 6, the main spring 7 is contracted, and the connecting column 6 drives the sampling cutter head 9 to cut the sample placed on the sampling base 10. After cutting, the handle 5 is released, and the connecting column 6 and the sampling cutter head 9 rise and return to their original position under the elastic force of the main spring 7.

[0018] The characteristic feature is that a top pressure plate that cooperates with the inner cavity of the sampling cutter disc 9 is provided at the cutter disc opening. In this embodiment, the top pressure plate is a top pressure circular plate 12. The circular top pressure plate matches the circular inner cavity of the sampling cutter disc 9. Two or more springs 11 are arranged on the top surface of the top pressure circular plate 12 in the circumferential direction to make the top pressure plate 12 uniformly stressed. The lower end of each spring 11 is connected to the top pressure circular plate 12, and the upper end is connected to the inner wall of the top surface of the sampling cutter disc 9. During sampling, the sample is flattened and stabilized by the top pressure circular plate 12 to avoid wrinkles. During cutting, the springs 11 retract, and the sample enters the sampling cutter disc 9. After cutting, the sampling cutter disc 9 rises, and the springs 11 push the sample out. Example

[0019] See Figure 2 The difference between this embodiment and Embodiment 1 is that: the top surface of the top pressure plate 12 is provided with columns 13. In this embodiment, the columns 13 and the spring 11 are concentrically arranged inside the spring 11. The columns 13 can also be arranged separately from the spring 11. The top surface of the sampling blade disk 9 is provided with through holes corresponding to the columns 13. The columns 13 extend out of the sampling blade disk 9 through the through holes. The top of each column 13 abuts against the bottom surface of the fixed disk 3. See reference. Figure 2In this embodiment, it is preferable to provide a connecting ring 14 at the top of the column 13, the connecting ring 14 stably connects each column 13, and the top surface of the connecting ring 14 abuts against the bottom surface of the fixed plate 3. During downward sampling, the column 13 and connecting ring 14 move downward with the sampling cutter disc 9. When cutting and sampling, the sample enters the sampling cutter disc 9, and the pressure plate 12, column 13, and connecting ring 14 move upward. After cutting, the sampling cutter disc 9 rises with the connecting column 6 under the action of the main spring 7. The column 13 and connecting ring 14 first press against the bottom surface of the fixed plate 3. As the sampling cutter disc 9 continues to rise and reset, the pressure plate 12, column 13, and connecting ring 14 move downward relative to the sampling cutter disc 9 under the action of the fixed plate 3, pushing the sample out. Even if a hard sample is stuck in the sampling cutter disc 9, it is easier to push the sample out through the reset force of the main spring 7 on the connecting column 6. This avoids the situation where the spring 11 in the sampling cutter disc 9 is too weak to push the sample out. Furthermore, this structure can reduce the required spring force of the sampling disc 9, allowing the use of a spring 11 with a smaller spring force, thereby reducing the operating resistance during sampling.

[0020] This invention features a simple structure, low cost, ease of use, good performance, and strong practicality. It avoids wrinkling of thin and delicate samples, improving sampling accuracy, and automatically ejects the sample from the sampling disc without requiring additional post-sampling operations. The above embodiment uses a disc sampler as an example; however, the invention is not limited to disc samplers. The sampling disc can also be triangular, quadrilateral, or other shapes, with the pressure plate matching the inner cavity of the sampling disc of different shapes.

[0021] The above are some embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sampling blade disc, characterized in that: A top pressure plate is provided at the opening of the sampling cutter disc to cooperate with the inner cavity of the sampling cutter disc. Two or more springs are arranged circumferentially on the top surface of the top pressure plate. The lower end of each spring is connected to the top pressure plate and the upper end is connected to the inner wall of the top surface of the sampling cutter disc. During sampling, the top pressure plate flattens and stabilizes the sample. During cutting, the springs retract and the sample enters the sampling cutter disc. After cutting, the sampling cutter disc rises and the springs push the sample out.

2. The sampling blade disc according to claim 1, characterized in that: The top surface of the top pressure plate is provided with columns, and the top surface of the sampling blade disk is provided with through holes corresponding to the columns. The sampling blade disk extends from the columns through the through holes, and the top of each column abuts against the bottom surface of a fixed disk.

3. The sampling blade disc according to claim 2, characterized in that: A connecting ring is provided at the top of the column, which stably connects the columns, and the top surface of the connecting ring abuts against the bottom surface of the fixing plate.

4. A sampler, comprising a fixed disk and a connecting post disposed on the fixed disk, characterized in that: The lower end of the connecting column is connected to a sampling blade disc as described in any one of claims 1-3.

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