Soil screening device for soil detection
By combining the structure of the crushing roller and dust baffle with the design of the electric slide rail and crescent scraper, the problems of dust overflow and screen clogging in existing soil screeners are solved, achieving efficient dust control and convenient soil screening operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-03-17
AI Technical Summary
Existing soil screeners have long filter frames located inside the main body when separating impurities and waste, which is inconvenient to handle. They also tend to generate dust when screening soil with low moisture content, which affects the environment.
The system employs a crushing roller and dust baffle structure, combined with an electric slide rail to automatically close and open the dust. A crescent scraper slides along the axial direction of the arc-shaped screen to push soil particles. A bin wall vibrator is installed to prevent clogging, and the screening process is achieved through automated control.
It effectively reduces dust spillage, improves the working environment, enhances operational convenience and dust control efficiency, prevents screen clogging, and facilitates maintenance and cleaning.
Smart Images

Figure CN223996182U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of soil testing technology, specifically a soil sieve for soil testing. Background Technology
[0002] Soil environmental monitoring refers to determining environmental quality (or pollution level) and its changing trends by measuring representative values of factors affecting soil environmental quality. It generally includes technical aspects such as sampling site selection, sample preparation, analytical methods, result characterization, data statistics, and quality evaluation.
[0003] An existing patent (publication number: CN221174111U) discloses a soil testing sieve, including a sieve body. Two rollers are rotatably arranged inside the sieve body. Two motors are installed on the outer wall of the sieve body. One end of each roller passes through the sieve body and is connected to the output end of the two motors respectively. A filter frame is arranged below the rollers. A linkage mechanism is provided on the sieve body. By setting the linkage mechanism, the drive motor drives the transmission belt to rotate, and at the same time, the first gear and the third gear rotate synchronously, causing the semi-circular block to rotate, which drives the movable plate to move up and down, and drives the filter frame to move up and down, so as to separate the soil and impurities and waste. The soil falls onto the transmission belt through the vibrating screen, and the transmission belt conveys it to the discharge port for discharge. The operation is simple and reduces the construction difficulty for construction personnel.
[0004] The aforementioned screening device uses a vibrating screen to drop soil onto a transmission belt, which then transports it to the discharge port for discharge. While simple to operate and reduces the difficulty for construction workers, the separated impurities and waste remain above the filter frame during use. The screened soil falls onto the transmission belt and is then transported to the discharge port, making it convenient for technicians to use. However, because the filter frame is quite long and located inside the main body, it is not convenient to process the intercepted impurities. Furthermore, during the screening process, soil with low moisture content is prone to generating excessive dust, impacting the surrounding environment. Utility Model Content
[0005] To address the shortcomings of existing technologies, this application provides a soil sieve for soil testing, which has advantages such as reducing dust and facilitating the handling of intercepted materials, thus solving the problems mentioned in the background art.
[0006] To achieve the above objectives, this application provides the following technical solution: a soil sieve for soil testing, comprising a crushing box, a screening box disposed below the crushing box, and a collection box disposed below the screening box. Two crushing shafts are rotatably connected between the front and rear inner sidewalls of the crushing box, and crushing rollers are fixedly connected to the outer surfaces of the two crushing shafts. Two dust baffles are disposed above the crushing box.
[0007] The bottom of the screening box is equipped with an arc-shaped screen, and a crescent scraper is slidably connected to the inside of the screening box along the axial direction of the arc-shaped screen.
[0008] A receiving box is placed on the inner bottom wall of the collection box, and the receiving box is slidably inserted into the collection box.
[0009] The above-mentioned solution, by setting up crushing rollers and dust baffles, can effectively crush soil clods. During the crushing process, the dust baffles can effectively block the generated dust, preventing dust from overflowing, thereby improving the working environment and reducing pollution to the surrounding environment. At the same time, the addition of electric slide rails allows the dust baffles to automatically close and open, further improving the convenience of operation and the efficiency of dust control. The crescent scraper slides along the axial direction of the arc-shaped screen, which can effectively push the soil particles on the screen and prevent large soil clods from clogging the screen. The hinged door design at the front and rear of the collection box allows the crescent scraper to easily push out the intercepted particles after screening, facilitating the maintenance and cleaning of the screener.
[0010] Furthermore, a set of brackets is fixedly connected to both the front and back of the crushing box, and an electric slide rail is installed at the top of each bracket. Each dust baffle is slidably connected to the electric slide rail adjacent to it.
[0011] The above solution, through the electric slide rail, enables the automatic closing and opening of the dust baffle, effectively preventing dust and gas from overflowing from the crushing box during the screening process.
[0012] Furthermore, vibrators are installed on both sides of the crushing box.
[0013] The above solution, through the installation of the bin wall vibrator, can achieve the purpose of vibration of the crushing box, thereby achieving the purpose of vibration of the arc-shaped filter screen and effectively avoiding clogging of the arc-shaped filter screen.
[0014] Furthermore, the collection box is hinged to door panels at both the front and rear ends.
[0015] The above solution, through the setting of the door panel, allows the crescent-shaped scraper to easily push out the intercepted particles during the screening process.
[0016] Furthermore, two lead screws are rotatably connected between the front and rear ends of the crushing box. The crescent scraper is threadedly connected to the two lead screws. Pulleys are fixedly installed at the front ends of the two lead screws. The two pulleys are connected by belt drive. One end of one of the lead screws is fixedly connected to the output end of an external motor.
[0017] The above scheme, through the setting of the lead screw, enables the linear movement of the crescent-shaped scraper.
[0018] Furthermore, an observation window is provided on one side of the collection box.
[0019] The above solution, with its observation window, allows staff to easily monitor the collection of soil particles in the collection box, facilitating timely removal of the receiving box for further processing.
[0020] Furthermore, the front ends of the two crushing shafts are respectively fixedly connected to the external motor output end.
[0021] The above scheme enables the synchronous rotation of two crushing shafts through the drive of a motor, thereby driving the crushing rollers to effectively crush the soil clods.
[0022] Furthermore, a control host is installed on one side of the collection box, and the control host is electrically connected to the electric slide rail, the bin wall vibrator, and the motor.
[0023] The above scheme, through the settings of the control host, enables automated control of the entire screening process.
[0024] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0025] This soil sieve for soil testing effectively crushes soil clods by incorporating a crushing roller and a dust baffle. During the crushing process, the dust baffle effectively blocks the generated dust, preventing it from overflowing and thus improving the working environment and reducing pollution to the surrounding environment. The addition of an electric slide rail allows the dust baffle to automatically close and open, further enhancing operational convenience and dust control efficiency. A crescent-shaped scraper slides along the axial direction of the arc-shaped screen, effectively pushing soil particles off the screen and preventing larger clods from clogging it. The hinged door design at the front and rear of the collection box allows the crescent-shaped scraper to easily push out intercepted particles after screening, facilitating maintenance and cleaning of the sieve. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ;
[0027] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 2 ;
[0028] Figure 3 This is a sectional view of the overall structure of this application from the front.
[0029] Figure 4 This is a perspective view of the overall structural cross-section of this application;
[0030] Figure 5 This is a structural diagram of the arc-shaped screen in this application.
[0031] In the picture:
[0032] 1. Crushing box; 2. Screening box; 3. Collection box; 4. Crushing shaft; 5. Crushing roller; 6. Dust baffle; 7. Arc screen; 8. Crescent scraper; 9. Receiving box; 10. Support; 11. Electric slide rail; 12. Bin vibrator; 13. Door panel; 14. Lead screw; 15. Pulley; 16. Observation window; 17. Control host. Detailed Implementation
[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0034] Please see Figure 1 , Figure 3 and Figure 4 This embodiment of a soil sieve for soil testing includes a crushing box 1, a screening box 2 located below the crushing box 1, and a collection box 3 located below the screening box 2. Two crushing shafts 4 are rotatably connected between the front and rear inner sidewalls of the crushing box 1. Crushing rollers 5 are fixedly connected to the outer surfaces of the two crushing shafts 4. Two dust baffles 6 are provided above the crushing box 1. The crushing rollers 5 enable the crushing of soil clods, and the dust baffles 6 block the dust generated during crushing. The front ends of the two crushing shafts 4 are fixedly connected to the output end of an external motor. Driven by the motor, the two crushing shafts 4 can rotate synchronously, thereby driving the crushing rollers 5 to effectively crush the soil clods.
[0035] Please see Figure 1 , Figure 2 and Figure 3 A set of brackets 10 are fixedly connected to the front and back of the crushing box 1. Each bracket 10 is equipped with an electric slide rail 11 at its top. Each dust baffle 6 is slidably connected to its adjacent electric slide rail 11. Through the electric slide rail 11, the dust baffle 6 can be automatically closed and opened, and dust gas can be effectively prevented from overflowing from the crushing box 1 during the screening process.
[0036] Please see Figure 1 , Figure 4 and Figure 5The bottom of the screening box 2 is equipped with an arc-shaped screen 7. Inside the screening box 2, a crescent scraper 8 is slidably connected along the axial direction of the arc-shaped screen 7. The crescent scraper 8 can push the surface of the arc-shaped screen 7, effectively preventing large soil clogging of the arc-shaped screen 7 and reducing screening efficiency. Both sides of the crushing box 1 are equipped with bin wall vibrators 12. The bin wall vibrators 12 can achieve the purpose of vibration of the crushing box 1, thereby achieving the purpose of vibration of the arc-shaped filter screen and effectively preventing the arc-shaped filter screen from clogging. The front and rear ends of the collection box 3 are hinged with door panels 13. The door panels 13 can facilitate the crescent scraper 8 to push out the intercepted particles during the screening process.
[0037] Please see Figure 1 , Figure 2 and Figure 3 Two lead screws 14 are rotatably connected between the front and rear ends of the crushing box 1. The crescent scraper 8 is threadedly connected to the two lead screws 14. The front ends of the two lead screws 14 are fixedly installed with pulleys 15, and the two pulleys 15 are connected by belt drive. One end of one lead screw 14 is fixedly connected to the output end of an external motor. The lead screw 14 enables the crescent scraper 8 to move linearly. A receiving box 9 is placed on the inner bottom wall of the collecting box 3. The receiving box 9 is slidably inserted into the collecting box 3. The collecting box 3 enables the collection of soil particles after screening. An observation window 16 is provided on one side of the collecting box 3. The observation window 16 allows the staff to easily observe the collection of soil particles in the collecting box 3 and to promptly remove the receiving box 9 for further processing. A control host 17 is installed on one side of the collecting box 3. The control host 17 is electrically connected to the electric slide rail 11, the bin wall vibrator 12, and the motor. The control host 17 enables the automated control of the entire screening process.
[0038] This embodiment of a soil sieve for soil testing, by setting a crushing roller 5 and a dust baffle 6, can effectively crush soil clods. During the crushing process, the dust baffle 6 can effectively block the generated dust, preventing dust from overflowing, thereby improving the working environment and reducing pollution to the surrounding environment. At the same time, the addition of an electric slide rail 11 allows the dust baffle 6 to automatically close and open, further improving the convenience of operation and the efficiency of dust control. The crescent scraper 8 slides along the axial direction of the arc-shaped screen 7, which can effectively push the soil particles on the screen and prevent large soil clods from clogging the screen. The door panel 13 with hinged front and rear ends of the collection box 3 allows the crescent scraper 8 to easily push out the intercepted particles after screening, which is convenient for maintenance and cleaning of the sieve.
[0039] The working principle of the above embodiment is as follows: First, the soil sample to be tested is put into the crushing chamber 1. At this time, the two crushing shafts 4 rotate synchronously under the drive of the motor, driving the crushing rollers 5 on their outer surface to effectively crush the soil clods. The force generated by the rotation of the crushing rollers 5 is sufficient to crush larger soil clods into smaller particles, preparing for subsequent screening. During the crushing process, in order to prevent the generated dust from overflowing, the dust baffle 6 above the crushing chamber 1 is automatically closed under the drive of the electric slide rail 11. In this way, the dust generated by crushing is effectively blocked inside the crushing chamber 1, avoiding pollution to the surrounding environment. After being polluted and crushed, the soil particles fall into the screening box 2 and are screened through the arc-shaped screen 7. At the same time, the crescent scraper 8, driven by the screw 14, slides along the axial direction of the arc-shaped screen 7 to push the screen surface, effectively preventing large soil clogging the screen and ensuring screening efficiency. The screened soil particles fall into the receiving box 9 in the collection box 3. Through the observation window 16, the staff can easily observe the collection of soil particles in the collection box 3. When the amount of soil particles in the receiving box 9 reaches a certain amount, the door panel 13 of the collection box 3 can be opened and the receiving box 9 can be slid out for the next step of processing.
[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0041] Although embodiments of this application have been shown and described, it will 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 this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A soil sifter for soil detection, comprising a crushing box (1), a sifting box (2) arranged below the crushing box (1), and a collecting box (3) arranged below the sifting box (2), characterized in that: Two crushing shafts (4) are rotatably connected between the front and rear inner side walls of the crushing box (1), the outer surfaces of the two crushing shafts (4) are fixedly connected with crushing rollers (5), and the upper portion of the crushing box (1) is provided with two dust baffle plates (6). An arc-shaped screen (7) is arranged at the bottom of the screening box (2), and a crescent-shaped scraper (8) is slidably connected to the inside of the screening box (2) along the axial direction of the arc-shaped screen (7). An accommodating box (9) is arranged on the inner bottom wall of the collecting box (3), and the accommodating box (9) is slidably connected to the collecting box (3).
2. The soil screener for soil testing of claim 1, wherein: The front and back surfaces of the crushing box (1) are fixedly connected with a group of supports (10), the top end of each support (10) is provided with an electric sliding rail (11), and each dust baffle plate (6) is slidably connected to the electric sliding rail (11) adjacent thereto.
3. The soil screener for soil testing of claim 1, wherein: The two side surfaces of the crushing box (1) are provided with bin wall vibrators (12).
4. The soil screener for soil testing of claim 1, wherein: The front and back ends of the collecting box (3) are hingedly connected with door plates (13).
5. The soil screener for soil testing of claim 1, wherein: Two lead screws (14) are rotatably connected between the front and back ends of the crushing box (1), the crescent-shaped scraper (8) is threadedly connected to the two lead screws (14), the front ends of the two lead screws (14) are fixedly provided with belt pulleys (15), the two belt pulleys (15) are drivingly connected through a belt, and one end of one of the lead screws (14) is fixedly connected to the output end of an external motor.
6. The soil screener for soil testing of claim 1, wherein: An observation window (16) is arranged on one side surface of the collecting box (3).
7. The soil screener for soil testing of claim 1, wherein: The front ends of the two crushing shafts (4) are fixedly connected to the output ends of external motors.
8. The soil screener for soil testing of claim 1, wherein: A control host (17) is arranged on one side surface of the collecting box (3), and the control host (17) is electrically connected to the electric sliding rails (11), the bin wall vibrators (12) and the motors.
Citation Information
Patent Citations
Screening device for soil detection
CN221174111U