Online sampling device in bulk grain conveying process

By designing a sampling mechanism with components such as chutes, sliders, threaded shafts, and electric cylinders, the problems of inconvenient grain sampling and detection errors in existing technologies have been solved, enabling direct sampling and highly accurate detection of grain.

CN224004754UActive Publication Date: 2026-03-17LONGKOU INSPECTION & CERTIFICATION CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In the existing technology, it is not convenient to directly sample grain into the sampling box during the bulk grain transportation process. It is necessary to use a grain suction machine and a corrugated pipe to suck up the grain and collect it manually. Furthermore, the grain residue inside the grain suction machine causes detection errors and reduces the accuracy of the detection.

Method used

A sampling mechanism was designed, which includes components such as a chute, a slider, a threaded shaft, a motor, and an electric cylinder. The motor drives the threaded shaft to move the slider and the sampling box, and the electric cylinder lifts and lowers the sampling box, so that the grain can flow directly into the sampling box. The combination of a latch lock and a baffle ensures stability and accuracy.

Benefits of technology

This technology enables direct sampling of grains into a sampling box, improving the accuracy and practicality of testing, simplifying the operation process, and reducing testing errors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of grain detection, in particular to an online sampling device in a bulk grain conveying process, which comprises a conveying line, a sampling mechanism, a support plate I and a support plate II, and the support plate I and the support plate II are both fixedly connected to the conveying line; the sampling mechanism is arranged on the supporting plate I and the supporting plate II; the sampling mechanism comprises a first sliding groove, through cooperation of a second sliding block, a second sliding groove, a clamping block and the like, a cover plate and a sampling box can be conveniently installed, an electric cylinder can conveniently drive the second sliding groove, the sampling box and the like to ascend and descend, after the sampling box makes contact with grains, sampling can be completed by inclining the sampling box, the grains can be conveniently and directly sampled into the sampling box, and the sampling efficiency is improved. The detection accuracy is improved, the motor, the threaded shaft, the first sliding block and the like can be matched to drive the sampling box to move conveniently, an operator can take down the sampling box conveniently and adjust the size of the sampling box according to the sampling amount conveniently, and the practicability is improved.
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Description

Technical Field

[0001] This utility model relates to the field of grain testing technology, specifically to an online sampling device for bulk grain transportation. Background Technology

[0002] As a vital food source for humankind, grain is highly susceptible to contamination by microorganisms such as mold during storage, leading to deterioration in grain quality, the production of mycotoxins, and serious threats to human health. Therefore, sampling and testing are necessary during the transportation of bulk grain before storage.

[0003] A search revealed that Chinese utility model patent CN218230973U discloses an online detection and sampling device for bulk grain transportation. This device mainly includes a support frame with a conveyor line laid on its support surface, and a grain suction platform positioned directly above the support frame. During use, it maintains the coverage and representativeness of grain sampling, reducing the sample volume. However, this device still has certain shortcomings. For example, it is not convenient to directly sample grain into the sampling box; the grain needs to be sucked up using a grain suction machine or corrugated pipe and manually collected into the sampling box. Furthermore, after use, some grain may remain inside the grain suction machine and suction pipe, which can mix with newly sampled grain during subsequent sampling and testing, leading to errors and reducing accuracy. Therefore, improvements to the existing technology are urgently needed. We propose an online sampling device for bulk grain transportation. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an online sampling device for bulk grain transportation. This solves the problem mentioned in the background art that existing technologies are inconvenient for directly sampling grain into the sampling box, requiring a grain suction machine, corrugated pipe, etc. to suck up the grain and manually collect it into the sampling box. Furthermore, after the grain suction machine and suction pipe have been used, some grain may remain inside, which may mix with the newly sampled grain during the next sampling and testing, leading to detection errors and reducing the accuracy of the test.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an online sampling device for bulk grain transportation, comprising a conveyor line, and further comprising:

[0008] Support plate one and support plate two, both of which are fixedly connected to the conveyor line;

[0009] A sampling mechanism is provided, which is mounted on support plate one and support plate two. The sampling mechanism includes a slide groove one, which is fixedly connected to support plate one and support plate two. A slider one is slidably connected in the slide groove one, and a threaded shaft is rotatably connected in the slide groove one. The slider one is threadedly connected to the threaded shaft. A motor is mounted on the slide groove one, and the output end of the motor passes through the slide groove one and is fixedly connected to the threaded shaft. An installation block is fixedly connected to the slider one, and an electric cylinder is mounted through the installation block. The output end of the electric cylinder is fixedly connected to the slide groove two, and a slider two is slidably connected in the slide groove two. A slot is provided on the slider two, and a locking block is placed in the slot. A cover plate is fixedly connected to the locking block, and a sampling box is rotatably connected to the cover plate. Two latches one are installed between the cover plate and the sampling box for sampling flowing grain.

[0010] Furthermore, a baffle is rotatably connected to the second slide, and a latch lock is installed between the baffle and the second slide.

[0011] Furthermore, the sampling box has an observation port, and an observation window is fixedly connected inside the observation port.

[0012] Furthermore, two telescopic rods are fixedly connected through the mounting block, and the output end of the telescopic rods is fixedly connected to the second sliding groove.

[0013] Furthermore, a protective cover is fixedly connected to the slide rail, and a removable maintenance plate is provided on the protective cover. The motor is placed inside the protective cover.

[0014] Furthermore, a placement groove is fixedly connected between the second support plate and the conveyor line.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides an online sampling device for bulk grain transportation, which has the following beneficial effects:

[0017] The combination of slider two, chute two, and locking block facilitates the installation of the cover plate and sampling box; it facilitates the electric cylinder to drive chute two and sampling box to rise and fall. After the sampling box touches the grain, it tilts, and the grain flows into the sampling box to complete the sampling; it facilitates the direct sampling of grain into the sampling box, improving the accuracy of testing; it facilitates the cooperation of motor, threaded shaft, slider one, etc. to move the sampling box; and it facilitates the operator to remove the sampling box and adjust its size according to the sampling volume, improving its practicality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2This is a three-dimensional structural diagram of the present invention after the repair panel has been removed;

[0020] Figure 3 This is a three-dimensional structural diagram of the electric cylinder and the slide groove in this utility model.

[0021] Figure 4 This is a rear-view three-dimensional structural diagram of the electric cylinder and the slide groove in this utility model.

[0022] Figure 5 This is an exploded structural diagram of the cooperation between the second sliding groove, the second sliding block, and the locking block in this utility model.

[0023] In the diagram: 1. Conveyor line; 2. Support plate one; 3. Support plate two; 4. Slide 1; 5. Slider one; 6. Threaded shaft; 7. Motor; 8. Mounting block; 9. Electric cylinder; 10. Slide 2; 11. Slider two; 12. Clamping block; 13. Cover plate; 14. Sampling box; 15. Hook and loop lock one; 16. Baffle; 17. Hook and loop lock two; 18. Observation window; 19. Telescopic rod; 20. Protective cover; 21. Maintenance plate; 22. Placement slot. Detailed Implementation

[0024] 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.

[0025] Example

[0026] Please see Figures 1-5 An online sampling device for bulk grain transportation includes a conveyor line 1, a sampling mechanism, a first support plate 2, and a second support plate 3, wherein the first support plate 2 and the second support plate 3 are both fixedly connected to the conveyor line 1; the sampling mechanism is disposed on the first support plate 2 and the second support plate 3.

[0027] The sampling mechanism includes a slide 4, which is fixedly connected to a support plate 2 and a support plate 3. A slider 5 is slidably connected inside the slide 4, and a threaded shaft 6 is rotatably connected inside the slide 4. The slider 5 is threadedly connected to the threaded shaft 6. A motor 7 is installed on the slide 4, and the output end of the motor 7 passes through the slide 4 and is fixedly connected to the threaded shaft 6. An mounting block 8 is fixedly connected to the slider 5, and an electric cylinder 9 is installed through the mounting block 8. The output end of the electric cylinder 9 is fixedly connected to a slide 10, and a slider 11 is slidably connected inside the slide 10. A slot is provided on the slider 11, and a locking block 12 is placed in the slot. A cover plate 13 is fixedly connected to the locking block 12, and a sampling box 14 is rotatably connected to the cover plate 13. Two latch locks 15 are installed between the cover plate 13 and the sampling box 14.

[0028] The motor 7 here is used to drive the threaded shaft 6 to rotate, and the threaded shaft 6 is used to drive the slider 5 to move linearly; the electric cylinder 9 is used to lift the slide 10; the slide 10, the slider 11, the slot and the block 12 are used to fix the cover plate 13; the latch lock 15 is used to connect the cover plate 13 and the sampling box 14.

[0029] A baffle 16 is rotatably connected to the slide rail 2 10. A latch lock 2 17 is installed between the baffle 16 and the slide rail 2 10. The baffle 16 is used to block the slider 2 11 and improve the stability of the slider 2 11 position.

[0030] The sampling box 14 has an observation opening, and an observation window 18 is fixedly connected inside the observation opening. With the cover 13 and the sampling box 14 closed, it is convenient for the operator to view the grain sampled inside the sampling box 14.

[0031] Two telescopic rods 19 are fixedly connected through the mounting block 8. The output end of the telescopic rods 19 is fixedly connected to the slide rail 10 to improve the stability of the lifting and lowering movement of the slide rail 10.

[0032] A protective cover 20 is fixedly connected to the slide rail 4, and a removable maintenance plate 21 is provided on the protective cover 20. The protective cover 20 is used to protect the motor 7, that is, the motor 7 is placed inside the protective cover 20. When maintaining the motor 7, the maintenance plate 21 can be removed, improving the convenience of maintenance.

[0033] A placement groove 22 is fixedly connected between the support plate 23 and the conveyor line 1 to facilitate the placement of sampling boxes 14 of different specifications.

[0034] It should be further explained that the motor 7 and electric cylinder 9 in this embodiment are conventional devices known to those skilled in the art and available on the market. Models can be selected or customized according to actual needs. In this patent, we only use them without improving their structure and function. Their setting method, installation method and electrical connection method can be easily explained by those skilled in the art by following the instructions for use. They will not be described in detail here. The motor 7 and electric cylinder 9 are equipped with matching control switches. The installation position of the control switches can be selected according to actual usage needs to facilitate operation and control by the operator.

[0035] In summary, the working principle and process of this utility model are as follows:

[0036] First, place the present invention at the desired location and connect the motor 7 to the forward and reverse circuits according to the corresponding instructions. Then, during sampling, first open the two latches 15. At this time, the sampling box 14 will rotate and tilt on the cover plate 13. Start the motor 7, which will drive the threaded shaft 6 to rotate. The threaded shaft 6 drives the sampling box 14 to move linearly through the slider 5. Then, the electric cylinder 9 drives the sampling box 14 to descend through the slide groove 10. Since the grain is conveyed in a flowing manner on the conveyor line 1, the sampling... After the sampling box 14 touches the grain, it tilts until the grain enters it, thus completing the sampling. Then, the electric cylinder 9 lifts the sampling box 14, and the motor 7 drives the threaded shaft 6 to move the sampling box 14 above the placement slot 22. The operator can then close the two latches 15. Finally, the latch 17 and the baffle 16 are opened, and the slider 11 is slid out, placing the sampling box 14 on the placement slot 22 to complete the sampling. This also facilitates the replacement of the sampling box 14. This invention is simple and quick to operate, allowing for direct sampling and improving practicality.

[0037] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. An on-line sampling device for bulk material conveying, comprising a conveying line (1), characterized in that Also include: Supporting plate one (2) and supporting plate two (3), the supporting plate one (2) and supporting plate two (3) are fixedly connected on the conveying line (1); The sampling mechanism is arranged on the supporting plate one (2) and the supporting plate two (3); the sampling mechanism comprises a chute one (4), the chute one (4) is fixedly connected on the supporting plate one (2) and the supporting plate two (3), the chute one (4) is slidably connected with a sliding block one (5), the chute one (4) is rotatably connected with a threaded shaft (6), the sliding block one (5) is threadedly connected on the threaded shaft (6), a motor (7) is installed on the chute one (4), the output end of the motor (7) penetrates the chute one (4) and is fixedly connected with the threaded shaft (6), the sliding block one (5) is fixedly connected with a mounting block (8), the mounting block (8) is fixedly connected with an electric cylinder (9), the output end of the electric cylinder (9) is fixedly connected with a chute two (10), the chute two (10) is slidably connected with a sliding block two (11), a clamping groove is formed in the sliding block two (11), a clamping block (12) is placed in the clamping groove, the clamping block (12) is fixedly connected with a cover plate (13), the cover plate (13) is rotatably connected with a sampling box (14), two snap locks one (15) are installed between the cover plate (13) and the sampling box (14).

2. A device for on-line sampling of bulk material in a conveying process according to claim 1, characterized in that The chute two (10) is rotatably connected with a baffle (16), and the baffle (16) and the chute two (10) are provided with a snap lock two (17).

3. A device for on-line sampling of bulk material in a conveying process according to claim 2, characterized in that An observation port is formed in the sampling box (14), and an observation window (18) is fixedly connected in the observation port.

4. A device for on-line sampling of bulk material in a conveying process according to claim 3, characterized in that Two telescopic rods (19) are fixedly connected on the mounting block (8), and the output ends of the telescopic rods (19) are fixedly connected with the chute two (10).

5. A device for on-line sampling of bulk material in a conveying process according to claim 4, characterized in that A protective cover (20) is fixedly connected on the chute one (4), the protective cover (20) is provided with a detachable maintenance plate (21), and the motor (7) is arranged in the protective cover (20).

6. A device for on-line sampling of bulk material in a conveying process according to claim 5, characterized in that The supporting plate two (3) and the conveying line (1) are fixedly connected with a placing groove (22).

Citation Information

Patent Citations

  • Online detection sample reserving device in bulk grain conveying process

    CN218230973U