Solid fertilizer sampling device
By designing a combination of support structure, sampler, sleeve, and drive device, uniform sampling of solid fertilizer was achieved, solving the problems of sample inhomogeneity and operational difficulties in existing devices, and improving sampling efficiency and detection accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2026-04-03
AI Technical Summary
Existing solid fertilizer sampling devices are difficult to sample evenly, especially for compacted or poorly flowing fertilizers, resulting in unrepresentative samples, difficult operation, and low efficiency.
The system employs a combination design of a support structure, a sampler, a sleeve, a drive unit, a crushing drill bit, spiral blades, limiting components, and a collection box. The crushing drill bit pulverizes compacted fertilizer, the spiral blades uniformly transport the sample, and the sampler evenly distributes the sample into the collection box.
It improves the uniformity and representativeness of the samples, reduces the difficulty of sampling, increases sampling efficiency, and ensures the accuracy of the test data.
Smart Images

Figure CN224081210U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural equipment technology, and in particular to a solid fertilizer sampling device. Background Technology
[0002] The vast majority of commercial fertilizers are solid fertilizers. Compared with liquid fertilizers, solid fertilizers are easier to store, transport, and apply. Solid fertilizer manufacturers need to sample each batch of their products and test them according to standards before they can be sold. To ensure the accuracy and stability of product test results, uniform sampling is crucial.
[0003] Currently, solid fertilizer sampling is mostly done manually. In this method, inspectors use a side-opening tubular sampler, inserting the tip into the packaging bag and using gravity and inertia to collect the sample. However, existing samplers require high fertilizer flowability, making it difficult to extract samples from compacted products or fertilizers with high moisture content and poor flowability. Furthermore, the samples obtained are often peripheral materials, making it difficult to obtain samples from the center. Uneven sampling and inconsistent sample volumes result in a lack of representativeness, leading to significant data fluctuations and affecting test results. Additionally, existing samplers are difficult to operate, labor-intensive, and inefficient. Utility Model Content
[0004] In view of this, the present invention provides a solid fertilizer sampling device, the main purpose of which is to improve the uniformity and representativeness of the sample, reduce the sampling difficulty, and improve the sampling efficiency.
[0005] To achieve the above objectives, this utility model mainly provides the following technical solutions:
[0006] An embodiment of this utility model provides a solid fertilizer sampling device, including: a support structure, a sampler, a sleeve, a drive device, a transmission shaft, a crushing drill bit, a spiral blade, a limiting component, a control device, a collection box A, and a collection box B;
[0007] The support structure has a sample cavity;
[0008] A handle is fixedly mounted on the support structure;
[0009] The sample divider is fixedly installed at the lower part of the support structure and communicates with the sample cavity to divide the fertilizer in the sample cavity into two parts for output.
[0010] One end of the sleeve is fixedly mounted on the support structure; the sleeve is a straight tubular structure; the sleeve is in communication with the sample cavity;
[0011] The driving device is fixedly mounted on the support structure;
[0012] The drive shaft is rotatably mounted on the support structure and is connected to the drive device for transmission; the drive shaft passes through the sleeve, and the other end of the drive shaft extends out of the sleeve; the drive shaft and the sleeve are coaxially distributed.
[0013] The breaker drill bit is fixedly mounted at the other end of the drive shaft; the maximum cutting diameter of the breaker drill bit is not less than the outer diameter of the sleeve;
[0014] The spiral blades are fixedly mounted on the drive shaft and extend from the sample cavity to the crushing drill bit;
[0015] The limiting member is slidably disposed on the sleeve; a locking member is provided between the limiting member and the sleeve to limit the relative position of the limiting member and the sleeve;
[0016] The control device is mounted on the support structure and electrically connected to the drive device, and is used to control the operation of the drive device;
[0017] The collection box A is detachably mounted on the support structure for collecting a portion of the material output by the sampler;
[0018] The collection box B is detachably mounted on the support structure for collecting another portion of the material output by the sampler.
[0019] Furthermore, the outer wall of the sleeve has scale markings.
[0020] Furthermore, the sample cavity is cylindrical to fit the helical blade.
[0021] Furthermore, the driving device is a stepper motor or a servo motor.
[0022] By employing the above technical solution, the solid fertilizer sampling device of this utility model has at least the following advantages:
[0023] It can improve the uniformity and representativeness of samples, reduce sampling difficulty, and improve sampling efficiency.
[0024] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of a solid fertilizer sampling device provided in an embodiment of the present invention.
[0026] As shown in the figure:
[0027] 1 is the support structure, 2 is the sample dispenser, 3 is the sleeve, 4 is the drive device, 5 is the transmission shaft, 6 is the crushing drill bit, 7 is the spiral blade, 8 is the limiting component, 9 is the control device, 10 is the collection box A, 11 is the sample cavity, and 12 is the handle. Detailed Implementation
[0028] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods, structures, features, and effects according to this utility model application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "embodiments" or "embodiments" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.
[0029] like Figure 1As shown, an embodiment of this utility model discloses a solid fertilizer sampling device, comprising: a support structure 1, a sample divider 2, a sleeve 3, a drive device 4, a transmission shaft 5, a crushing drill bit 6, a spiral blade 7, a limiting component 8, a control device 9, a collection box A10, and a collection box B; the support structure 1 has a sample cavity 11; preferably, the sample cavity 11 is cylindrical to fit the spiral blade 7. A handle 12 is fixedly provided on the support structure 1 for convenient operation by the operator. The sample divider 2 is fixedly provided at the lower part of the support structure 1 and communicates with the sample cavity 11 to divide the fertilizer in the sample cavity 11 into two parts for output; the output is respectively output to the collection box A10 and the collection box B to form two samples. One end of the sleeve 3 is fixedly provided on the support structure 1; the sleeve 3 is a straight tubular structure; the sleeve 3 communicates with the sample cavity 11; the drive device 4 is fixedly provided on the support structure 1 for driving the transmission shaft 5 to rotate; preferably, the drive device 4 is a stepper motor or a servo motor for convenient and precise control. A drive shaft 5 is rotatably mounted on the support structure 1 and is connected to the drive device 4. The drive shaft 5 passes through the sleeve 3, and the other end of the drive shaft 5 extends out of the sleeve 3. The drive shaft 5 and the sleeve 3 are coaxially distributed. A crushing drill bit 6 is fixedly mounted on the other end of the drive shaft 5 to crush the compacted fertilizer to the desired sampling position. The maximum cutting diameter of the crushing drill bit 6 is not less than the outer diameter of the sleeve 3 so that the sleeve 3 can pass through the crushing zone, and the operator can easily insert the sleeve 3 into the fertilizer to be sampled. A spiral blade 7 is fixedly mounted on the drive shaft 5 and extends from the sample cavity 11 to the crushing drill bit 6. The spiral blade 7 is driven by the drive shaft 5 to rotate forward or backward to transport the fertilizer to or from the sample cavity 11. A limiting member 8 is slidably mounted on the sleeve 3 to limit the depth of insertion of the sleeve 3 into the fertilizer. A locking member is provided between the limiting member 8 and the sleeve 3 to limit the relative position of the limiting member 8 and the sleeve 3. The locking member can be a bolt. The limiting component 8 controls the sampling depth, ensuring sample consistency. The control device 9 is mounted on the support structure 1 and electrically connected to the drive device 4, used to control the operation of the drive device 4.
[0030] Collection box A10 is detachably mounted on support structure 1 to collect a portion of the material output from sampler 2; collection box B is detachably mounted on support structure 1 to collect the remaining material output from sampler 2. Collection boxes A10 and B are respectively located on both sides of support structure 1; sampler 2 evenly distributes the sample into collection boxes A10 and B on both sides, solving the problem of secondary sampling and effectively improving work efficiency. Control device 9 controls drive device 4 to rotate drive shaft 5 in the opposite direction, returning excess material in sample cavity 11 into the product, and slowly withdrawing sleeve 3 from fertilizer, completing the sampling process.
[0031] One embodiment of this utility model proposes a solid fertilizer sampling device. The crushing drill bit 6 can crush compacted fertilizer, and the spiral blades 7 can smoothly extract fertilizer with high moisture content and poor fluidity. It can extract the same amount of material from different parts of the sample as needed, which can improve the uniformity and representativeness of the sample, reduce data fluctuations, and ensure the accuracy of the test data. In addition, it has a simple structure, is safe and convenient to use, reduces the sampling difficulty, improves the sampling efficiency, and reduces the labor intensity of operators.
[0032] Preferably, the outer wall of the sleeve has graduation markings to facilitate the operator's observation of the sampling depth of the sleeve.
[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A solid fertilizer sampling device, characterized by, The device comprises a support structure, a sample divider, a sleeve, a driving device, a transmission shaft, a crushing drill bit, a helical blade, a limiting member, a control device, a collection box A and a collection box B. The support structure is provided with a sample cavity. A handle is fixedly arranged on the support structure. The sample divider is fixedly arranged on the lower part of the support structure and communicates with the sample cavity to divide the fertilizer in the sample cavity into two parts. One end of the sleeve is fixedly arranged on the support structure. The sleeve is a straight pipe structure. The driving device is fixedly arranged on the support structure. The transmission shaft is rotatably arranged on the support structure and is in transmission connection with the driving device. The transmission shaft passes through the sleeve and the other end of the transmission shaft extends out of the sleeve. The limiting member is slidably arranged on the sleeve. The limiting member and the sleeve are provided with a locking member to limit the relative position of the limiting member and the sleeve. The control device is arranged on the support structure and is electrically connected with the driving device to control the action of the driving device. The collection box A is detachably arranged on the support structure to collect part of the material output by the sample divider. The collection box B is detachably arranged on the support structure to collect another part of the material output by the sample divider.
2. The solid fertilizer sampling device according to claim 1, wherein the outer wall of the sleeve is provided with a scale mark.
3. The solid fertilizer sampling device according to claim 1, wherein the sample cavity is cylindrical to adapt to the helical blade.
4. The solid fertilizer sampling device according to claim 1, wherein the driving device is a stepping motor or a servo motor.