Convenient solid food sampling head, sampling device and sampling method

Abstract

The invention relates to the technical field of solid food sampling, and particularly discloses a convenient solid food sampling head, a sampling device and a sampling method.The sampling head comprises a sampling head body, and 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 device has the advantages that sampling points and sampling amount are flexible and controllable, representativeness of samples can be improved, meanwhile, conventional detection work can be directly carried out after sampling, operation is convenient and fast, smashing is not needed again, the operation process is greatly shortened, working efficiency is improved, and the use effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of solid food sampling, and in particular to a convenient solid food sampling head, a sampling device and a sampling method. Background Art

[0002] The main difficulties in sampling solid food at present are: 1. The sampling operation process is inconvenient; 2. It is necessary to solve the problem of whether the sampled samples are representative. For technical difficulty 1, the more objective analysis is as follows: as the authorized patent CN221425991U, a sampler for rapid food detection, "the existing technology needs to use a sampling device to crush hard food into particles when sampling food, so that it can be used for subsequent staff to detect it. The shape of food is varied, including hard food and cake-like food. When taking different samples, different knives are needed, and the switching of knives is not convenient for sampling different foods at the same time." That is, the current operation is to use a suitable knife to cut and sample hard food first. The cutting process is troublesome. In order to solve the problem of sampling uniformity and ensure that the sample can objectively reflect the actual data of this batch of samples (that is, solve technical difficulty 2), it is necessary to screen as many sampling points as possible, and manual cutting brings problems of workload and efficiency in actual operations. At the same time, the current practice requires the solid samples to be crushed after sampling before subsequent testing operations can be carried out. The entire sampling operation process is not only labor-intensive and inefficient, but also difficult to ensure the representativeness of the samples. Summary of the invention

[0003] In view of the above technical problems, the present invention provides a convenient solid food sampling head, a sampling device and a sampling method to solve the problems of convenience and low efficiency in solid food sampling.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A convenient sampling head for solid food, comprising a sampling head body, the sampling head body comprising a rotating inner cylinder and a fixed outer cover; the rotating inner cylinder is a straight-through tube structure, a scraper head is arranged on the top, and a driving joint is detachably arranged on the lower end; a plurality of air suction holes are arranged on the side wall of the rotating inner cylinder; the fixed outer cover is sleeved on the outside of the rotating inner cylinder to support the rotating inner cylinder; the rotating inner cylinder can rotate relative to the fixed outer cover; the scraper head comprises a scraper head body, the scraper head body is a trumpet-shaped structure which is wide at the top and narrow at the bottom; a circle of cutting teeth is arranged on the top of the scraper head body; a cutting knife slot is arranged in the scraper head body; a cutting blade is detachably arranged in the cutting knife slot.

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

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

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

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

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

[0011] A convenient sampling device for solid food, comprising a convenient sampling head for solid food as described above; also comprising a sampling device body, the sampling device body comprising a negative pressure cylinder and a rotating 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 via the fixed outer cover; the output shaft of the rotating motor being detachably connected to the driving joint via a driving head, and the rotating inner cylinder being driven to rotate by the rotating motor.

[0012] Optionally, it also includes a solid food fixing device, which includes a liftable support seat, a horizontal displacement component and a solid food fixing platform; the horizontal displacement component can be lifted and lowered on the liftable support seat; the horizontal displacement component includes a left and right displacement device and a front and back displacement device; the solid food fixing platform is set on the horizontal displacement component and can achieve front and back, left and right position adjustment; the solid food fixing platform is used to fix solid food.

[0013] Optionally, the solid food fixing platform includes a left longitudinal plate and a right longitudinal plate; a plurality of cross bars are arranged between the left longitudinal plate and the right longitudinal plate; and the right longitudinal plate can be slidably arranged on the cross bars along left and right directions.

[0014] A convenient solid food sampling method, using the convenient solid food sampling device as described above, comprises the following steps:

[0015] (1) A scraper head is used as a sampling head, and the powder is scraped from the sampling point of the solid food by the rotating scraper head, and then the sample powder is sucked into the rotating inner cylinder by negative pressure;

[0016] (2) Take the sampling head body out of the sampling device body, remove the cutting blade at the upper end of the rotating inner cylinder and the driving joint at the lower end, use a rod to poke out the sample powder in the rotating inner cylinder, and perform a routine detection test.

[0017] The beneficial effects of the present invention compared with the prior art are as follows:

[0018] The present invention adopts a rotating inner cylinder to scrape powder from solid food for sampling. The sampling points and the sampling amount are flexibly controllable, which can improve the representativeness of the sample. At the same time, conventional testing operations can be carried out directly after sampling. The operation is convenient and there is no need to crush again, which greatly shortens the operation process, improves work efficiency, and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the sampling head body of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the rotating inner cylinder of the present invention;

[0021] Figure 3 is a top view of the scraper head of the present invention;

[0022] Figure 4 It is a partial side view of the rotating inner cylinder of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the sampling device of the present invention;

[0024] Figure 6 It is a schematic diagram of the assembly structure of the present invention;

[0025] Figure 7 It is a top view of the solid food fixing platform of the present invention. DETAILED DESCRIPTION

[0026] The above content is a detailed description of this patent in combination with specific implementation methods, and it cannot be determined that the specific implementation methods of this patent are limited to the above description. For ordinary technicians in the technical field to which this patent belongs, without departing from the concept of this patent, several substitutions or modifications made to the above-described implementation methods should be deemed to belong to the protection scope of this patent. In the description of this specification, in this specification, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In the absence of contradictions, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention 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.

[0027] like Figures 1 to 4As shown, a convenient sampling head for solid food comprises a sampling head body, wherein the sampling head body comprises a rotating inner cylinder 2 and a fixed outer cover 1; the rotating inner cylinder 2 is in a straight-through tube structure, and hard plastic, stainless steel and other materials may be preferably used during preparation, and a scraper head 17 is arranged on the top thereof. In the present embodiment, the scraper head 17 comprises a scraper head body, and the scraper head body is in a trumpet-mouth structure which is wide at the top and narrow at the bottom, and a circle of cutting teeth is arranged on the top of the scraper head body, and the cutting teeth comprise saw teeth 16 and tooth grooves 15. In the present embodiment, the tooth grooves 15 are more than 1.5 times deeper than the conventional tooth 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 wide at the top and narrow at the bottom can ensure that air is smoothly drawn into the rotating inner cylinder 2 from the tooth grooves 15, thereby sucking the solid food powder into the rotating inner cylinder 2. In order to improve the scraping effect, in this embodiment, a cutter slot 14 is provided in the body of the scraper head; a cutter blade 18 is detachably provided in the cutter slot 14, and the cutter blade 18 is Y-shaped in top view, and scraping teeth are provided on the top. In some embodiments, the cutter blade 18 can also be provided as an inverted V-shaped blade structure with a high center and a low periphery in side view, which is beneficial to the excavation effect of hard food. A drive joint 6 is detachably provided at the lower end of the rotating inner cylinder 2, and common detachable modes such as threaded connection, clamping connection, sleeve connection, and screw connection can be selected. The function of the drive joint 6 is to connect power. In this embodiment, a connecting platform is provided at the lower end of the rotating inner cylinder 2, and the connecting platform is provided in a polygonal structure. The upper part of the drive joint 6 is provided as a cover structure, and its inner cavity is matched and provided in a polygonal structure. When in use, it is directly sleeved and connected with the lower end of the rotating inner cylinder 2, which is convenient to operate; a drive slot 7 is provided at the bottom of the drive joint 6, and the drive slot 7 is used to connect power.

[0028] The side wall of the rotating inner cylinder 2 is provided with a plurality of air extraction holes 3; the fixed outer cover 1 is sleeved on the outside of the rotating inner cylinder 2 to support the rotating inner cylinder 2; the rotating inner cylinder 2 can rotate relative to the fixed outer cover 1. In order to prevent the rotating inner cylinder 2 from shifting axially relative to the fixed outer cover 1 during the rotation process, in this embodiment, the side wall of the rotating inner cylinder 2 is provided with a positioning convex ring 5, and the side wall of the fixed outer cover 1 is provided with a positioning concave ring 4 corresponding to the positioning convex ring 5.

[0029] The side wall of the rotating inner cylinder 2 is provided with a plurality of anti-blocking elastic head assemblies. The side wall of the fixed outer cover 1 is provided with a plurality of negative pressure vent holes 8 corresponding to the anti-blocking elastic head assemblies. In this embodiment, the plurality of negative pressure vent holes 8 are arranged in a circle corresponding to the anti-blocking elastic head assemblies; Figure 4As shown, the anti-blocking elastic head assembly includes an elastic portion 11-2 and a conical head 11-1. The root of the elastic portion 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-blocking elastic head assembly and the side wall of the rotating inner cylinder 2, so that the anti-blocking elastic head assembly can achieve radial swing during the rotation of the rotating inner cylinder 2. Figure 1 As shown, the conical head 11-1 matches the design of the negative pressure vent hole 8, and the negative pressure vent hole 8 can be knocked and unblocked during the rotation of the rotating inner cylinder 2 to prevent solid food powder from blocking the negative pressure vent hole 8. The radial swing of the anti-blocking elastic head assembly can also promote the smooth flow of air when the rotating inner cylinder 2 draws negative pressure. The use of this structure can effectively prevent blockage during the sample powder adsorption process and ensure the continuous and effective collection of samples.

[0030] The outer side wall of the fixed outer cover 1 is provided with a plurality of fixed protrusions 10, and the fixed protrusions 10 are axially provided with a plurality of breathing holes 12. The purpose of this structural design is to improve the stability of the sampling head body. In this embodiment, a tightening fixing head 13 is provided on the top of the fixed outer cover 1, which plays a locking and fixing role when in use.

[0031] A convenient sampling device for solid food, such as Figure 5 As shown, it includes a convenient sampling head for solid food as described above; it also includes a sampling device body and a fixing seat 23, the lower part of the fixing seat is provided with a fixing hole 24, the sampling device body includes a negative pressure cylinder 20 and a rotating motor 25, the sampling head body can be detachably inserted into the negative pressure cylinder 20; a plurality of fixing convex rings 10 are clamped into the inner cavity 21 of the negative pressure cylinder 20, and the axial space is communicated through a plurality of breathing holes 12; the upper end of the sampling head body is locked and fixed to the sampling head body by a fixing cover 30, and the following scheme is adopted in this embodiment:

[0032] The top outer wall of the negative pressure cylinder 20 is provided with a connection structure such as a thread 19 or a polygonal structure; the outer wall of the tightening fixing head 13 of the fixed outer cover 1 is also provided with a corresponding thread or polygonal structure, and then the fixed cover 30 is provided as a lid structure and a through hole is provided in the middle thereof, and the inner wall is provided with a thread or polygonal structure accordingly. When in use, the fixed outer cover 1 is pressed and connected to the top of the negative pressure cylinder 20 by the fixed cover 30 to ensure that the fixed outer cover 1 is stable and motionless when the rotating inner cylinder 2 rotates. At least one positioning convex ring 5 is provided at the top of the rotating inner cylinder 2 corresponding to the tightening fixing 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 rubber ring 29 is also provided on the negative pressure cylinder 20 corresponding to the tightening fixing head 13 area.

[0033] The negative pressure cylinder 20 is connected to a negative pressure pipe 27, and when in use, it is connected to a negative pressure pump 43 through the negative pressure pipe; the output shaft of the rotating motor 25 is detachably connected to the driving joint 6 through the driving head 26, and the rotating inner cylinder 2 is driven to rotate through the rotating motor 25.

[0034] In order to support the solid food during the sampling process, 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 seat 31, a horizontal displacement component 36 and a solid food fixing platform; the horizontal displacement component can be lifted and arranged on the liftable support seat. In this embodiment, the following scheme is adopted: a groove 34 is arranged on the liftable support seat 31, and then two support rods 33 are arranged in the groove 34. The lifting plate can be lifted and arranged on the support rod 33, and a spring 32 is arranged on the support rod 33 to provide a restoring force. When in use, the lifting plate is moved downward by human pressure, and the spring 32 is relied on to provide a restoring force when the pressure is released; the horizontal displacement component 36 includes a left and right displacement device and a front and rear displacement device. The horizontal displacement device, the left-right displacement device and the front-back displacement device can select the existing manual translation device. The solid food fixing platform is arranged on the horizontal displacement component and can realize the adjustment of the front-back and left-right positions; in order to facilitate operation, a handle 35 is arranged 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; a plurality of cross bars 37 are arranged between the left longitudinal plate and the right longitudinal plate; the cross bars 37 are arranged at intervals so that when sampling, the sampling head body rises from the gap between the cross bars 37 to sample the solid food 41, and the right longitudinal plate 38 can be slidably arranged on the cross bar 37 along the left and right directions. In order to facilitate actual operation (the sampling head body is aligned with the gap between the cross bars 37), a boss 40 is provided on the left side of the right longitudinal plate 38; when in use, the solid food 41 is placed on the cross bar 37, and then the right longitudinal plate 38 is pushed to the left, and the boss 40 squeezes the solid food 41. Then, in this embodiment, a thread and a nut 39 are provided on the right end side of the cross bar 37, and the right longitudinal plate 38 is squeezed and locked by the nut 39 to ensure that the boss 40 presses the solid food tightly.

[0035] A convenient solid food sampling method, using the convenient solid food sampling device as described above, comprises the following steps:

[0036] (1) A scraper head 17 is used as a sampling head, and the sampling point 42 of the solid food is scraped from bottom to top by the rotating scraper head 17, and then the sample powder is sucked into the rotating inner cylinder 2 by negative pressure;

[0037] (2) Take the sampling head body out of the sampling device body, remove the cutting blade at the upper end of the rotating inner cylinder and the driving joint at the lower end, use a rod to poke out the sample powder in the rotating inner cylinder, and perform a routine detection test.

[0038] The above scheme can solve the problem that different knives need to be used to cut hard solid foods into pieces during traditional sampling, and the cutting sampling operation not only has poor controllability of the quantity at the sampling point, but also requires a large workload to achieve uniform sampling, and then complex operations such as crushing the cut pieces.

Claims

1. A convenient sampling head for solid food, characterized in that: It includes a sampling head body, which includes a rotating inner cylinder and a fixed outer cover; the rotating inner cylinder is a straight-through pipe structure, a scraper head is arranged on the top, and a driving joint is detachably arranged on the lower end; a plurality of air suction holes are arranged on the side wall of the rotating inner cylinder; the fixed outer cover is sleeved on the outside of the rotating inner cylinder to support the rotating inner cylinder; the rotating inner cylinder can rotate relative to the fixed outer cover; the scraper head includes a scraper head body, which is a trumpet-shaped structure with a wide upper part and a narrow lower part; a circle of cutting teeth is arranged on the top of the scraper head body; a cutter slot is arranged in the scraper head body; a cutting blade is detachably arranged in the cutter slot.

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

3. The solid food convenient sampling head according to claim 1, characterized in that: The side wall of the rotating inner cylinder is provided with a plurality of anti-blocking elastic head components.

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

5. The solid food convenient sampling head according to claim 1, characterized in that: The outer side wall of the fixed outer cover is provided with a plurality of fixed convex rings, and the fixed convex rings are axially provided with a plurality of breathing holes.

6. The solid food convenient sampling head according to claim 1, characterized in that: A tightening fixing head is arranged on the top of the fixed outer cover.

7. A convenient sampling device for solid food, characterized in that: It comprises a convenient solid food sampling head as described in any one of claims 1 to 6; it also comprises a sampling device body, the sampling device body comprises a negative pressure cylinder and a rotating motor, the sampling head body is 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 via the fixed outer cover; the output shaft of the rotating motor is detachably connected to the driving joint via a driving head, and the rotating inner cylinder is driven to rotate by the rotating motor.

8. A convenient solid food sampling device according to claim 7, characterized in that: It also includes a solid food fixing device, which includes a liftable support seat, a horizontal displacement component and a solid food fixing platform; the horizontal displacement component can be lifted and arranged on the liftable support seat; the horizontal displacement component includes a left and right displacement device and a front and back displacement device; the solid food fixing platform is arranged on the horizontal displacement component and can achieve front and back, left and right position adjustment; the solid food fixing platform is used to fix solid food.

9. A convenient solid food sampling device according to claim 8, characterized in that: The solid food fixing platform comprises a left longitudinal plate and a right longitudinal plate; a plurality of cross bars are arranged between the left longitudinal plate and the right longitudinal plate; the right longitudinal plate can be slidably arranged on the cross bars along the left and right directions.

10. A convenient sampling method for solid food, characterized in that: Using the solid food convenient sampling device as claimed in claim 9 comprises the following steps: (1) A scraper head is used as a sampling head, and the powder is scraped from the sampling point of the solid food by the rotating scraper head, and then the sample powder is sucked into the rotating inner cylinder by negative pressure; (2) Take the sampling head body out of the sampling device body, remove the cutting blade at the upper end of the rotating inner cylinder and the driving joint at the lower end, use a rod to poke out the sample powder in the rotating inner cylinder, and perform a routine detection test.

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