Convenient solid food sampling head and sampling device

Abstract

The utility model relates to the technical field of solid food sampling, and particularly discloses a convenient solid food sampling head and a sampling device, the sampling head comprises a sampling head body, the sampling head body comprises a rotary inner cylinder and a fixed outer cover; and the rotary inner cylinder can rotate relative to the fixed outer cover. The sampling device comprises a sampling device body, the sampling device body comprises a negative pressure cylinder and a rotating motor, and the sampling head body is detachably inserted into the negative pressure cylinder. The sampling device has the advantages that sampling points and sampling amount are flexible and controllable, representativeness of samples can be improved, conventional detection operation can be directly performed after sampling, operation is convenient and fast, crushing is not needed again, operation procedures are greatly reduced, working efficiency is improved, and the using effect is good.

Description

Technical Field

[0001] This utility model relates to the field of solid food sampling technology, specifically to a convenient sampling head and sampling device for solid food. Background Technology

[0002] The main difficulties in current solid food sampling are: 1. Inconvenient sampling process; 2. The need to address the representativeness of the samples. Regarding technical difficulty 1, a more objective analysis is as follows: For example, authorized patent CN221425991U describes a sampler for rapid food testing. "Existing technology requires the use of a sampling device to crush hard foods into granules for subsequent testing. Food shapes vary widely, including hard foods and cake-like foods. Different cutting tools are needed for different samples, and switching between tools is inconvenient for simultaneous sampling of different foods." In other words, the current operation involves cutting hard foods into pieces using a suitable tool, a cumbersome process. To address the issue of sampling uniformity and ensure that the samples objectively reflect the actual data of the batch (i.e., solving technical difficulty 2), it is necessary to screen as many sampling points as possible. However, manual cutting introduces workload and efficiency problems in actual operations. Furthermore, the current practice requires pulverizing the solid sample after sampling before subsequent testing can be carried out. The entire sampling process is not only labor-intensive and inefficient, but also makes it difficult to guarantee the representativeness of the sample. Utility Model Content

[0003] This utility model addresses the aforementioned technical problems by providing a convenient sampling head and sampling device for solid food, thus solving the problems of low convenience and efficiency in sampling solid food.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A convenient sampling head for solid food includes a sampling head body, which comprises a rotating inner cylinder and a fixed outer cover. The rotating inner cylinder has a straight tube structure, with a scraper head at its top and a drive connector detachably provided at its lower end. The side wall of the rotating inner cylinder is provided with several air extraction holes. The fixed outer cover is fitted over the rotating inner cylinder and provides support for it. The rotating inner cylinder can rotate relative to the fixed outer cover.

[0006] Optionally, the side wall of the rotating inner cylinder is provided with a positioning protrusion, and the side wall of the fixed outer cover is provided with a positioning concave ring corresponding to the positioning protrusion.

[0007] Optionally, the sidewall of the rotating inner cylinder is provided with a plurality of anti-clogging elastic head assemblies.

[0008] Optionally, the side wall of the fixed outer cover is provided with a number of negative pressure vent holes corresponding to the anti-clogging elastic head assembly.

[0009] Optionally, the outer wall of the fixed outer cover is provided with a plurality of fixed protrusions, and the fixed protrusions are provided with a plurality of breathing holes axially.

[0010] Optionally, the top of the fixed outer cover is provided with a tightening head.

[0011] Optionally, the scraper head includes a scraper head body, which has a flared structure that is wider at the top and narrower at the bottom; a ring of cutting teeth is provided at the top of the scraper head body.

[0012] Optionally, a cutter slot is provided in the body of the scraper head; a cutter blade is detachably installed in the cutter slot.

[0013] A convenient sampling device for solid food includes a convenient sampling head for solid food as described above; it also includes a sampling device body, the sampling device body including a negative pressure cylinder and a rotary motor, the sampling head body being detachably inserted into the negative pressure cylinder; the negative pressure cylinder is connected to a negative pressure tube; the sampling head body is connected and fixed to the negative pressure cylinder through the fixed outer cover; the output shaft of the rotary motor is detachably connected to the drive connector through a drive head, and drives the rotating inner cylinder to rotate through the rotary motor.

[0014] Optionally, a solid food fixing device is also included, comprising a liftable support base, a horizontal displacement component, and a solid food fixing platform; the horizontal displacement component is liftably mounted on the liftable support base; the horizontal displacement component includes a left-right displacement device and a front-back displacement device; the solid food fixing platform is mounted on the horizontal displacement component and can be adjusted in front-back and left-back positions; the solid food fixing platform includes a left longitudinal plate and a right longitudinal plate; several crossbars are provided between the left longitudinal plate and the right longitudinal plate; the right longitudinal plate can slide on the crossbars in the left-right direction.

[0015] The advantages of this utility model compared with the prior art are:

[0016] This invention uses a rotating inner cylinder to scrape powder from solid food for sampling. The sampling points and sample volume are flexible and controllable, which can improve the representativeness of the sample. At the same time, routine testing can be carried out directly after sampling. The operation is convenient and does not require further crushing, which greatly reduces the operation process, improves work efficiency, and has good results. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the sampling head body of this utility model;

[0018] Figure 2 This is a schematic diagram of the rotating inner cylinder of this utility model;

[0019] Figure 3 This is a top view of the scraper head of this utility model;

[0020] Figure 4 This is a partial side view of the rotating inner cylinder of this utility model;

[0021] Figure 5 This is a schematic diagram of the sampling device of this utility model;

[0022] Figure 6 This is a schematic diagram of the assembly and combination structure of this utility model;

[0023] Figure 7 This is a top view of the solid food fixing platform of this utility model. Detailed Implementation

[0024] The above description is a detailed explanation of this patent in conjunction with specific embodiments, and it should not be construed that the specific embodiments of this patent are limited to the above description. For those skilled in the art, any substitutions or modifications made to the described embodiments without departing from the concept of this patent should be considered within the scope of protection of this patent. In this specification, specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of this utility model and their advantages have been described in detail, it should be understood that various changes, substitutions, and modifications can be made herein without departing from the scope of protection of the patent application.

[0025] A convenient sampling head for solid food, such as Figures 1-4As shown, the device includes a sampling head body, which comprises a rotating inner cylinder 2 and a fixed outer cover 1. The rotating inner cylinder 2 has a straight tube structure and can preferably be made of hard plastic, stainless steel, or other materials. A scraper head 17 is provided on its top. In this embodiment, the scraper head 17 includes a scraper head body, which has a flared structure that is wider at the top and narrower at the bottom. A ring of cutting teeth is provided at the top of the scraper head body. The cutting teeth include serrations 16 and grooves 15. In this embodiment, the grooves 15 are more than 1.5 times deeper than conventional grooves. The function of the above structure is that, during the process of the scraper head 17 rotating and cutting into the solid food, the design of being wider at the top and narrower at the bottom ensures that air can be smoothly drawn into the rotating inner cylinder 2 from the grooves 15, thereby drawing the solid food powder into the rotating inner cylinder 2. To improve the scraping effect, in this embodiment, a cutter groove 14 is provided inside the scraper head body; a cutter blade 18 is detachably installed in the cutter groove 14. The cutter blade 18 has a Y-shaped structure in its top view and scraping teeth on its top. In some embodiments, the cutter blade 18 can also be configured as an inverted V-shaped blade structure with a high center and low outer periphery in its side view, which is beneficial for the digging effect on hard foods. A drive connector 6 is detachably installed at the lower end of the rotating inner cylinder 2. Common detachable methods such as threaded connection, snap-fit, sleeve connection, and screw connection can be selected. The function of the drive connector 6 is to connect the power. In this embodiment, a connecting platform is provided at the lower end of the rotating inner cylinder 2. The connecting platform is configured as a polygonal structure. The upper part of the drive connector 6 is configured as a cover structure, and its inner cavity is configured as a polygonal structure. In use, it is directly sleeved and connected to the lower end of the rotating inner cylinder 2, which is convenient for operation. A drive groove 7 is provided at the bottom of the drive connector 6, which is used to connect the power.

[0026] The rotating inner cylinder 2 has several air extraction holes 3 on its side wall; the fixed outer cover 1 is fitted over the rotating inner cylinder 2 to support it; the rotating inner cylinder 2 can rotate relative to the fixed outer cover 1. To prevent the rotating inner cylinder 2 from shifting axially relative to the fixed outer cover 1 during rotation, in this embodiment, the rotating inner cylinder 2 has a positioning protrusion 5 on its side wall, and the fixed outer cover 1 has a positioning concave ring 4 corresponding to the positioning protrusion 5 on its side wall.

[0027] The rotating inner cylinder 2 has a plurality of anti-clogging elastic head assemblies on its side wall. The fixed outer cover 1 has a plurality of negative pressure vent holes 8 corresponding to the anti-clogging elastic head assemblies on its side wall. In this embodiment, the plurality of negative pressure vent holes 8 are arranged in a circle corresponding to the anti-clogging elastic head assemblies; for example... Figure 4As shown, the anti-clogging elastic head assembly includes an elastic part 11-2 and a conical head 11-1. The root of the elastic part 11-2 is connected to the side wall of the rotating inner cylinder 2. A gap 11-3 is left between the remaining area of ​​the anti-clogging elastic head assembly and the side wall of the rotating inner cylinder 2, allowing the anti-clogging elastic head assembly to achieve radial oscillation during the rotation of the rotating inner cylinder 2. Figure 1 As shown, the conical head 11-1 is designed to match the negative pressure vent 8. During the rotation of the rotating inner cylinder 2, it can tap and clear the negative pressure vent 8, preventing solid food powder from clogging it. The radial oscillation of the anti-clogging elastic head assembly also promotes smooth airflow when the rotating inner cylinder 2 draws negative pressure. This structure effectively prevents clogging during sample powder adsorption, ensuring continuous and effective sample collection.

[0028] The outer wall of the fixed outer cover 1 is provided with several fixing protrusions 10, and several breathing holes 12 are axially arranged on the fixing protrusions 10. The purpose of this structural design is to improve the stability of the sampling head body. In this embodiment, the top of the fixed outer cover 1 is provided with a tightening fixing head 13, which plays a role in locking and fixing during use.

[0029] A convenient sampling device for solid food, such as Figure 5 As shown, the device includes a convenient sampling head for solid food as described above; it also includes a sampling device body and a fixing base 23. The lower part of the fixing base is provided with a fixing hole 24. The sampling device body includes a negative pressure cylinder 20 and a rotary motor 25. The sampling head body can be detachably inserted into the negative pressure cylinder 20. Several fixing protrusions 10 are engaged in the inner cavity 21 of the negative pressure cylinder 20, and are axially connected through several breathing holes 12. The upper end of the sampling head body is locked and fixed by a fixing cover 30. In this embodiment, the following scheme is adopted:

[0030] The top outer wall of the negative pressure cylinder 20 is provided with a connecting structure, such as a thread 19, or a polygonal structure. The outer wall of the tightening head 13 of the fixed outer cover 1 is also provided with a corresponding thread or polygonal structure. The fixed cover 30 is configured as a cover structure with a through hole in its middle, and the inner wall is provided with a corresponding thread or polygonal structure. In use, the fixed outer cover 1 is pressed and fixed to the top of the negative pressure cylinder 20 by the fixed cover 30, ensuring that the fixed outer cover 1 remains stable when the rotating inner cylinder 2 rotates. The top of the rotating inner cylinder 2 is provided with at least one positioning protrusion 5 corresponding to the tightening head 13 to better maintain the negative pressure value of the inner cavity 21 of the negative pressure cylinder 20. At the same time, in this embodiment, a sealing ring 29 is also provided on the negative pressure cylinder 20 corresponding to the area of ​​the tightening head 13.

[0031] The negative pressure cylinder 20 is connected to a negative pressure pipe 27, which is connected to a negative pressure pump 43 during use. The output shaft of the rotary motor 25 is detachably connected to the drive connector 6 via a drive head 26, and drives the rotating inner cylinder 2 to rotate via the rotary motor 25.

[0032] To support the sampling process of solid food, this embodiment also includes a solid food fixing device, such as... Figures 6-7 As shown, the solid food fixing device includes a liftable support base 31, a horizontal displacement component 36, and a solid food fixing platform. The horizontal displacement component is liftably mounted on the liftable support base. In this embodiment, the following scheme is adopted: a groove 34 is provided on the liftable support base 31, and two support rods 33 are provided in the groove 34. The lifting plate is liftably mounted on the support rods 33, and a spring 32 is provided on the support rods 33 to provide restoring force. In use, the lifting plate is moved downward by manual pressure, and the spring 32 provides restoring force when the pressure is released. The horizontal displacement component 36 includes a left-right displacement device and a front-back displacement device. The moving device, including the left-right displacement device and the front-back displacement device, can be an existing manual translation device. The solid food fixing platform is set on the horizontal displacement component and can realize the adjustment of the front-back and left-back positions. For ease of operation, a handle 35 is provided on the horizontal displacement component 36 to facilitate related operations. The solid food fixing platform includes a left longitudinal plate and a right longitudinal plate 38. Several crossbars 37 are provided between the left longitudinal plate and the right longitudinal plate. The crossbars 37 are spaced apart so that when sampling, the sampling head body can rise from the gap between the crossbars 37 to sample the solid food 41. The right longitudinal plate 38 can slide on the crossbars 37 in the left-right direction. To facilitate actual operation (the sampling head body is aligned with the gap between the crossbars 37), a boss 40 is provided on the left side of the right longitudinal plate 38. In use, the solid food 41 is placed on the crossbar 37, and then the right longitudinal plate 38 is pushed to the left. The boss 40 squeezes the solid food 41. In this embodiment, a thread and nut 39 are provided on the right end of the crossbar 37. The nut 39 is used to squeeze and lock the right longitudinal plate 38, ensuring that the boss 40 presses the solid food tightly.

[0033] The operation steps of the aforementioned convenient solid food sampling device are as follows:

[0034] (1) The scraper head 17 is used as the sampling head. The scraper head 17 is rotated to scrape the powder from bottom to top at the sampling point 42 of the solid food. Then, the sample powder is sucked into the rotating inner cylinder 2 by negative pressure.

[0035] (2) Remove the sampling head body from the sampling device body, remove the cutting blade at the top of the rotating inner cylinder and the drive connector at the bottom of the air, use a rod to poke out the sample powder in the rotating inner cylinder, and conduct routine testing.

[0036] The above solution can solve the problems of traditional sampling, such as the need to use different knives to cut hard solid foods into pieces, poor control of the amount of samples taken, large workload to achieve uniform sampling, and complex operations such as crushing the pieces.

Claims

1. A convenient sampling head for solid food, characterized in that: The device includes a sampling head body, which comprises a rotating inner cylinder and a fixed outer cover. The rotating inner cylinder has a straight tube structure, with a scraper head at its top and a drive connector detachably mounted at its lower end. The side wall of the rotating inner cylinder has several air extraction holes. The fixed outer cover is fitted over the rotating inner cylinder and provides support for it. The rotating inner cylinder can rotate relative to the fixed outer cover.

2. The convenient sampling head for solid food according to claim 1, characterized in that: The side wall of the rotating inner cylinder is provided with a positioning protrusion, and the side wall of the fixed outer cover is provided with a positioning concave ring corresponding to the positioning protrusion.

3. The convenient sampling head for solid food according to claim 1, characterized in that: The side wall of the rotating inner cylinder is provided with several anti-clogging elastic head assemblies.

4. The convenient sampling head for solid food according to claim 3, characterized in that: The side wall of the fixed outer cover is provided with several negative pressure vent holes corresponding to the anti-clogging elastic head assembly.

5. The convenient sampling head for solid food according to claim 1, characterized in that: The outer wall of the fixed outer cover is provided with several fixed protrusions, and several breathing holes are axially arranged on the fixed protrusions.

6. The convenient sampling head for solid food according to claim 1, characterized in that: The top of the fixed outer cover is provided with a tightening fixing head.

7. A convenient sampling head for solid food according to claim 1, characterized in that: The scraper head includes a scraper head body, which has a flared structure that is wider at the top and narrower at the bottom; a ring of cutting teeth is provided at the top of the scraper head body.

8. A convenient sampling head for solid food according to claim 7, characterized in that: The scraper head body is provided with a cutter slot; a cutter blade is detachably installed in the cutter slot.

9. A convenient sampling device for solid food, characterized in that: The device includes a convenient sampling head for solid food as described in any one of claims 1 to 8; it also includes a sampling device body, the sampling device body including a negative pressure cylinder and a rotary motor, the sampling head body being detachably inserted into the negative pressure cylinder; the negative pressure cylinder being connected to a negative pressure tube; the sampling head body being connected and fixed to the negative pressure cylinder through the fixed outer cover; the output shaft of the rotary motor being detachably connected to the drive connector through a drive head, and driving the rotating inner cylinder to rotate through the rotary motor.

10. The convenient sampling device for solid food according to claim 9, characterized in that: It also includes a solid food fixing device, which comprises a liftable support base, a horizontal displacement component, and a solid food fixing platform; the horizontal displacement component is liftably mounted on the liftable support base; the horizontal displacement component includes a left-right displacement device and a front-back displacement device; the solid food fixing platform is mounted on the horizontal displacement component and can be adjusted in front-back and left-back positions; the solid food fixing platform includes a left longitudinal plate and a right longitudinal plate; several crossbars are provided between the left and right longitudinal plates; the right longitudinal plate can slide on the crossbars in the left-right direction.

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