Grain and oil detection sampling device with multi-stage collection function
By designing a sampling device for grain and oil testing with multi-level acquisition function, the problem of existing samplers requiring the use of different instruments multiple times has been solved, achieving efficient multi-depth stratified sampling and improving acquisition efficiency and detection accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-24
AI Technical Summary
Existing samplers require instruments of different lengths to sample grains at different depths, resulting in low collection efficiency and inconvenience, and making it impossible to achieve multi-depth stratified collection.
A sampling device for grain and oil testing with multi-level collection function was designed. The sampling port and the feed port are dynamically matched by rotating and adjusting the sampling port at different angles. The grain is transported by a spiral conveyor blade, and the adjustment head is prevented from rotating by a limiting mechanism, so as to achieve grain collection at different depths.
It enables efficient and convenient multi-depth stratified sampling, improves collection efficiency, and ensures sample representativeness and detection accuracy.
Smart Images
Figure CN224035011U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of grain and oil sampling, especially to a sampling device with multistage collection function for grain and oil detection. BACKGROUND
[0002] Grain and oil sampling refers to the process of collecting representative samples from large quantities of grain, oil or its processed products according to standardized methods, which ensures that the samples can truly reflect the quality characteristics of the whole batch of materials through standardized methods. It is a key link for grain and oil quality detection, safety monitoring and trade settlement, and directly affects the accuracy and fairness of the detection results. When sampling grain, in order to detect abnormal conditions such as moisture, mold or insect damage in the grain, samples from the upper, middle and bottom layers of the grain pile need to be obtained simultaneously to avoid the deviation of single position sampling.
[0003] The existing sampling device cannot collect grain at different depths for detection when sampling grain at different depths. Different lengths of sampling devices are needed, and different sampling devices are inserted into different depths of grain for sampling. This requires a large number of instruments, which is not convenient to use and has low collection efficiency.
[0004] Therefore, in view of the problem that the above-mentioned sampling device cannot collect grain at different depths for detection, multiple instruments are needed to collect grain at different depths, resulting in low collection efficiency. By using a multistage collection sampling device, different angle sampling ports and different depth feed ports can be dynamically matched by rotating adjustment, and multidepth stratified sampling can be realized. SUMMARY
[0005] In order to overcome the problem that the existing sampling device cannot collect grain at different depths for detection when sampling grain at different depths, different lengths of sampling devices are needed, and different sampling devices are inserted into different depths of grain for sampling. This requires a large number of instruments, which is not convenient to use and has low collection efficiency.
[0006] The technical scheme of the utility model is as follows: a sampling device with multistage collection function for grain and oil detection, comprising a sampling cylinder, an inner rotating groove is formed in the inside of the sampling cylinder, an outer rotating groove is formed on the top outside of the sampling cylinder, a conical insertion head is fixedly connected to the bottom surface of the sampling cylinder, a feed port is formed on the outside of the sampling cylinder, a limiting ring is fixedly connected to the outside of the sampling cylinder, and a discharge pipe is arranged on the outside of the sampling cylinder.
[0007] As a preferred, the inner rotating groove and the outer rotating groove are in communication, the feed ports are equally spaced on the sampling cylinder, and the discharge pipe is connected to the sampling cylinder.
[0008] As preferred, the top surface of the sampling cylinder is fixedly connected with a sampling motor through a bolt, the output end of the sampling motor is fixedly connected with a rotating shaft, the bottom surface of the rotating shaft is rotatably connected with the inner wall bottom of the sampling cylinder, and the outer side of the rotating shaft is fixedly connected with a spiral conveying blade.
[0009] As preferred, the inner wall of the inner rotating groove is rotatably connected with a rotating cylinder, the inner wall of the outer rotating groove is rotatably connected with an adjusting head, and the bottom surface of the adjusting head is fixedly connected with the top surface of the rotating cylinder.
[0010] As preferred, the outer side of the adjusting head is fixedly connected with an anti-skid strip, the anti-skid strip is distributed at equal angles on the adjusting head, the outer side of the rotating cylinder is provided with a sampling port, the sampling port is spirally distributed on the rotating cylinder, and the sampling port is in communication with the feeding port.
[0011] As preferred, the top end of the outer side of the adjusting head is fixedly connected with a limiting ring, the top surface of the limiting ring is provided with a limiting hole, and the limiting hole is distributed at equal angles on the limiting ring.
[0012] As preferred, the outer side of the sampling cylinder is fixedly connected with a limiting seat, the inner wall top of the limiting seat is fixedly connected with a limiting spring, the tail end of the limiting spring is fixedly connected with a limiting bolt, and the limiting bolt is slidably connected with the inner wall of the limiting seat.
[0013] The utility model discloses a kind of sampling devices, including sampling cylinder, sampling motor, rotating shaft, spiral conveying blade, inner rotating groove, outer rotating groove, adjusting head, rotating cylinder, limiting ring, limiting hole, limiting seat, limiting spring and limiting bolt.
[0014] 1、through rotating adjusting head drive rotating cylinder rotates in sampling cylinder, with the sampling port of most lower end and feeding port correspond, and utilize the elastic force of limiting spring to promote limiting bolt to insert into limiting hole to limit adjusting head, prevent rotating in the sampling process of adjusting head, so that grain is entered into the inside of sampling cylinder by feeding port and sampling port, in utilizing spiral conveying blade, sampled grain is transported upwards, and is discharged from discharge pipe discharge device outside and is collected;
[0015] 2, after collection, rotating adjusting head again, make limiting ring produce rotating force, because the curved surface structure of limiting bolt head, make limiting bolt from limiting hole slide out, remove the limitation of adjusting head, until limiting bolt inserts into next limiting hole to limit adjusting head again, make sampling port and feeding port dislocation, complete the sampling of deepest layer of grain, after the transportation of grain in sampling cylinder is collected, repeat the above steps, make different angle sampling port and feeding port one by one alignment, so that different depth of grain is entered into the inside of sampling cylinder by feeding port and sampling port, and is transported and collected. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 The whole three-dimensional structure schematic diagram of the utility model is shown;
[0017] Figure 2The sampling cylinder cross section three-dimensional structure schematic view is shown.
[0018] Figure 3 The rotating cylinder three-dimensional structure schematic view is shown.
[0019] Figure 4 The adjusting head three-dimensional structure schematic view is shown.
[0020] Figure 5 The limiting seat cross section three-dimensional structure schematic view is shown.
[0021] The figure mark explanation: 1, sampling cylinder; 2, inner rotating groove; 3, outer rotating groove; 4, conical insertion head; 5, feed inlet; 6, limiting plate; 7, discharge pipe; 101, sampling motor; 102, rotating shaft; 103, spiral conveying blade; 201, rotating cylinder; 202, adjusting head; 203, anti-skid strip; 204, sampling port; 205, limiting ring; 206, limiting hole; 301, limiting seat; 302, limiting spring; 303, limiting bolt. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0023] Please refer to Figures 1-5 The present application provides an embodiment: a sampling device with multi-stage sampling function for grain and oil detection, comprising a sampling cylinder 1, an inner rotating groove 2 is formed in the inside of the sampling cylinder 1, an outer rotating groove 3 is formed on the top outer side of the sampling cylinder 1, a conical insertion head 4 is fixedly connected to the bottom surface of the sampling cylinder 1, a feed inlet 5 is formed on the outer side of the sampling cylinder 1, a limiting plate 6 is fixedly connected to the outer side of the sampling cylinder 1, and a discharge pipe 7 is arranged on the outer side of the sampling cylinder 1.
[0024] The inner rotating groove 2 and the outer rotating groove 3 are in communication, the feed inlets 5 are distributed at equal intervals on the sampling cylinder 1, and the discharge pipe 7 is connected to the sampling cylinder 1. When sampling is needed, the device is vertically erected above the grain, the sampling cylinder 1 is easily inserted into the inside of the grain through the conical insertion head 4 for sampling, until the limiting plate 6 is in contact with the surface of the grain for limiting, so as to avoid the insertion of the sampling cylinder 1 being inclined and affecting the sampling position, and the sampled grain is discharged out of the device through the discharge pipe 7 for collection.
[0025] The top surface of the sampling cylinder 1 is fixedly connected with a sampling motor 101 through bolts, the output end of the sampling motor 101 is fixedly connected with a rotating shaft 102, the bottom surface of the rotating shaft 102 is rotatably connected with the inner wall bottom of the sampling cylinder 1, the outer side of the rotating shaft 102 is fixedly connected with a spiral conveying blade 103, the rotating shaft 102 is driven to rotate by the sampling motor 101, so that the spiral conveying blade 103 can be continuously rotated to transport the grain entering the sampling cylinder 1 upwards.
[0026] The inner wall of the inner rotating groove 2 is rotatably connected with a rotating cylinder 201, the inner wall of the outer rotating groove 3 is rotatably connected with an adjusting head 202, the bottom surface of the adjusting head 202 is fixedly connected with the top surface of the rotating cylinder 201, during the sampling process, according to the sampling requirements of different depths, the rotating cylinder 201 is driven to rotate in the inner rotating groove 2 by rotating the adjusting head 202, the angle of the rotating cylinder 201 is changed, the sampling ports 204 of different angles are aligned with the feed port 5 one by one, so that the grain of different depths enters the inside of the sampling cylinder 1 through the feed port 5 and the sampling port 204, the sampled grain is transported upwards by the spiral conveying blade 103, and is discharged outside the device through the discharge pipe 7 and is collected respectively.
[0027] The outer side of the adjusting head 202 is fixedly connected with an anti-skid strip 203, the anti-skid strip 203 is distributed at equal angles on the adjusting head 202, the outer side of the rotating cylinder 201 is provided with a sampling port 204, the sampling port 204 is spirally distributed on the rotating cylinder 201, the sampling port 204 is in communication with the feed port 5, in the rotating adjusting process, the friction of the adjusting head 202 is increased through the anti-skid strip 203, so that the rotating adjustment is facilitated, and the grain can enter the inside of the sampling cylinder 1 for sampling through the alignment of the feed port 5 and the sampling port 204.
[0028] The outer side of the top end of the adjusting head 202 is fixedly connected with a limiting ring 205, the top surface of the limiting ring 205 is provided with limiting holes 206, the limiting holes 206 are distributed at equal angles on the limiting ring 205, the limiting head 202 can be limited by the limiting ring 205 and the limiting holes 206 distributed at equal angles, so that the rotating of the adjusting head 202 in the sampling process is prevented.
[0029] The outer side of the sampling cylinder 1 is fixedly connected with a limiting seat 301, the inner wall top of the limiting seat 301 is fixedly connected with a limiting spring 302, the tail end of the limiting spring 302 is fixedly connected with a limiting bolt 303, the limiting bolt 303 is in sliding connection with the inner wall of the limiting seat 301, the limiting spring 302 is used for pushing the limiting bolt 303 to insert into the limiting hole 206 to limit the limiting ring 205, and the rotation of the adjusting head 202 is prevented, when the adjusting head 202 needs to be rotated, the limiting ring 205 is rotated by rotating the adjusting head 202, due to the curved surface structure of the head of the limiting bolt 303, the limiting bolt 303 slides out of the limiting hole 206, the limitation of the adjusting head 202 is removed, until the limiting bolt 303 inserts into the next limiting hole 206 to limit the adjusting head 202 again, the sampling port 204 is dislocated with the feeding port 5, and the sampling of the grain at different depths is completed.
[0030] Working principle: according to Figure 1 and Figure 2 shown, when the grain needs to be sampled, the device is vertically erected above the grain, the sampling cylinder 1 is inserted into the inside of the grain through the conical insertion head 4 to sample, until the limiting plate 6 is in abutment with the surface of the grain to limit, the sampling cylinder 1 is prevented from being inserted obliquely, the rotating shaft 102 is driven to rotate by the sampling motor 101, so that the helical conveying blade 103 can be continuously rotated to facilitate the transportation of the grain;
[0031] According to Figures 2-5 shown, the rotating cylinder 201 is rotated in the sampling cylinder 1 by rotating the adjusting head 202, the lowermost sampling port 204 is aligned with the feeding port 5, the limiting bolt 303 is inserted into the limiting hole 206 by the elastic force of the limiting spring 302 to limit the adjusting head 202, and the rotation of the adjusting head 202 in the sampling process is prevented, so that the grain enters into the inside of the sampling cylinder 1 through the feeding port 5 and the sampling port 204, the sampled grain is transported upwards by the helical conveying blade 103, and the device is discharged outside through the discharge pipe 7 to be collected;
[0032] According to Figures 2-5 shown, the adjusting head 202 is rotated again after the collection is completed, the limiting ring 205 is rotated, due to the curved surface structure of the head of the limiting bolt 303, the limiting bolt 303 slides out of the limiting hole 206, the limitation of the adjusting head 202 is removed, until the limiting bolt 303 inserts into the next limiting hole 206 to limit the adjusting head 202 again, the sampling port 204 is dislocated with the feeding port 5, the sampling of the deepest grain is completed, after the grain in the sampling cylinder 1 is transported and collected, the above steps are repeated, the sampling port 204 at different angles is aligned with the feeding port 5 one by one, so that the grain at different depths enters into the inside of the sampling cylinder 1 through the feeding port 5 and the sampling port 204, and the transportation is collected.
[0033] The above is the working process of the whole device, and the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.
[0034] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A sampling device for grain and oil testing with multi-stage sampling function, comprising a sampling cylinder (1), characterized in that: The sampling cylinder (1) has an inner rotating groove (2) inside, an outer rotating groove (3) is provided on the outer side of the top of the sampling cylinder (1), a conical insert head (4) is fixedly connected to the bottom surface of the sampling cylinder (1), a feed inlet (5) is provided on the outer side of the sampling cylinder (1), a limit ring is fixedly connected to the outer side of the sampling cylinder (1), and a discharge pipe (7) is provided on the outer side of the sampling cylinder (1).
2. The sampling device for grain and oil testing with multi-level acquisition function according to claim 1, characterized in that: The inner rotating groove (2) is connected to the outer rotating groove (3), the feed inlet (5) is evenly distributed on the sampling cylinder (1), and the discharge pipe (7) is connected to the sampling cylinder (1).
3. The sampling device for grain and oil testing with multi-level acquisition function according to claim 1, characterized in that: The top surface of the sampling cylinder (1) is fixedly connected to a sampling motor (101) by bolts. The output end of the sampling motor (101) is fixedly connected to a rotating shaft (102). The bottom surface of the rotating shaft (102) is rotatably connected to the bottom of the inner wall of the sampling cylinder (1). The outer side of the rotating shaft (102) is fixedly connected to a spiral conveying blade (103).
4. A sampling device for grain and oil testing with multi-level acquisition function according to claim 1, characterized in that: The inner wall of the inner rotating groove (2) is rotatably connected to a rotating cylinder (201), and the inner wall of the outer rotating groove (3) is rotatably connected to an adjusting head (202). The bottom surface of the adjusting head (202) is fixedly connected to the top surface of the rotating cylinder (201).
5. A sampling device for grain and oil testing with multi-level acquisition function according to claim 4, characterized in that: An anti-slip strip (203) is fixedly connected to the outside of the adjusting head (202). The anti-slip strip (203) is distributed at equal angles on the adjusting head (202). A sampling port (204) is opened on the outside of the rotating cylinder (201). The sampling port (204) is spirally distributed on the rotating cylinder (201). The sampling port (204) is connected to the feed port (5).
6. A sampling device for grain and oil testing with multi-level acquisition function according to claim 4, characterized in that: A limiting ring (205) is fixedly connected to the outer side of the top end of the adjusting head (202). A limiting hole (206) is opened on the top surface of the limiting ring (205). The limiting holes (206) are evenly distributed on the limiting ring (205).
7. A sampling device for grain and oil testing with multi-level acquisition function according to claim 1, characterized in that: A limiting seat (301) is fixedly connected to the outer side of the sampling cylinder (1), a limiting spring (302) is fixedly connected to the top of the inner wall of the limiting seat (301), a limiting pin (303) is fixedly connected to the end of the limiting spring (302), and the limiting pin (303) is slidably connected to the inner wall of the limiting seat (301).