Grading screening device for soil detection

Abstract

The utility model discloses a grading screening device for soil detection, and relates to the technical field of soil detection. The grading screening device for soil detection comprises a vibration base, a tray and a screening frame, the tray and the screening frame are installed on the surface of the vibration base, a screening box is fixedly arranged at the upper end of the tray, the front end of the screening box is open, sliding grooves are formed in the left end and the right end of the inner wall of the screening box, and the screening frame is in sliding connection with the sliding grooves through sliding blocks. And a screen mesh is detachably mounted at the bottom of the screen frame. In order to overcome the defect that the soil screen is inconvenient to sample, the screen frame is connected with the screen box in a sliding manner, so that the screen frame is very easy to assemble and disassemble, a bracket does not need to be assembled and disassembled, the lower-layer screen frame can be conveniently pulled out, the sampling process is simplified, the operation time is greatly saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil detection, in particular to a grading and screening device for soil detection. Background Art

[0002] In the existing technology, soil testing usually adopts Figure 1 The sieve shown is used to screen the soil. When in use, the required sieve frames are stacked up and down and fixed with a bracket. After screening, the bracket is removed and the sieve frames are taken down one by one. The operation is relatively cumbersome. When screening soil, the sieve frame on the upper layer is usually used to screen out larger particles and impurities, while the finer and easier to analyze soil particles are located in the sieve frame on the lower layer. Therefore, when testing, only the soil particles in the lower sieve frame are usually required. If Figure 1 The sieve shown is not convenient for directly taking the sieve frame at the lower layer, which makes sampling inconvenient.

[0003] Therefore, in order to solve the inconvenience of soil sieve sampling, it is necessary to propose a graded screening device for soil testing. Utility Model Content

[0004] The purpose of the utility model is to provide a grading screening device for soil testing. Through the sliding connection between the screen frame and the screen box, the installation and disassembly of the screen frame becomes very easy, no assembly and disassembly of the bracket is required, and the lower screen frame can be easily pulled out, which simplifies the sampling process, greatly saves operation time, and improves work efficiency, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A grading and screening device for soil testing comprises a vibrating base, a tray mounted on the surface of the vibrating base, and a screen frame. A screen box is fixedly mounted on the upper end of the tray. The front end of the screen box is open, and slide grooves are formed on the left and right ends of its inner wall. The screen frame is slidably connected to the slide grooves via sliders. A screen mesh is detachably mounted on the bottom of the screen frame.

[0007] The vibration base is located at the rear end of the screen box and is telescopically provided with a plug plate, which is fixedly connected to the vibration base through a pin. A limiting block is welded to the rear end of the screen frame, and the limiting block passes through the screen box and is located outside the screen box. A limiting groove that is compatible with the plug plate is opened at one end of the limiting block located outside the screen box.

[0008] Preferably, the plug plate is provided with adjustment holes at equal intervals that are compatible with the plug pins.

[0009] Preferably, a through hole is provided at the rear end of the inner wall of the screen box, and the through hole is in sliding connection with the limiting block.

[0010] Preferably, the chutes are provided in plurality and are spaced at equal intervals, and a plurality of screen frames are stacked up and down in the screen box through the chutes, and the screen aperture of the upper screen frame is larger than that of the lower screen frame.

[0011] Preferably, screws are welded at the four corners of the bottom of the screen frame, the screen is fixedly connected to the screen frame through screws and nuts, and a handle is installed at the upper end of the screen.

[0012] Preferably, a handle is installed at the front end of the screen frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. This soil testing graded screening device uses a sliding connection between the screen frame and the screen box, abandoning the traditional method of using brackets to fix the screen frame. This simplifies the process of disassembling and assembling the screen frame, and each screen frame can be operated independently. When only soil particles in the lower screen frame need to be obtained, the lower screen frame can be directly pulled out by the handle, without having to remove the upper screen frame first like traditional sieves, making sampling convenient;

[0015] 2. This soil testing graded screening device has a detachable connection between the screen and the screen frame, making it very convenient to replace the screen, and it is easy to replace the screen with different mesh sizes to meet different screening needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Diagram of the sieve structure used for traditional soil testing;

[0017] Figure 2 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of screen frame locking of the present invention;

[0019] Figure 4 This is a schematic diagram of the screen box structure of the present utility model;

[0020] Figure 5 This is a schematic diagram of the connection between the screen frame and the screen mesh of the present invention.

[0021] In the figure: 1. Vibrating base; 11. Insert plate; 111. Adjusting hole; 12. Latch; 2. Tray; 3. Screen box; 31. Slide; 32. Perforation; 4. Screen frame; 41. Slider; 42. Limit block; 421. Limit slot; 43. Handle; 44. Screw; 5. Screen; 51. Handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] For technical questions on how sieves facilitate sampling, see Figure 2-Figure 4 , this embodiment provides the following technical solutions:

[0024] A grading and screening device for soil testing includes a vibrating base 1, a tray 2 mounted on the surface of the vibrating base 1, and a screen frame 4. A screen box 3 is fixedly provided at the upper end of the tray 2. The front end of the screen box 3 is open, and chutes 31 are provided at the left and right ends of its inner wall. The screen frame 4 is slidably connected to the chutes 31 via a slider 41. A handle 43 is installed at the front end of the screen frame 4.

[0025] There are multiple chutes 31 with equal spacing, and multiple screen frames 4 are stacked up and down in the screen box 3 through the chutes 31. The aperture of the screen 5 at the upper screen frame 4 is larger than the aperture of the screen 5 at the lower screen frame 4.

[0026] Wherein, the screen 5 is not installed in the screen frame 4 at the bottom.

[0027] Specifically, the screening steps are as follows: according to the screening needs, take out the sieve frame 4 that meets the mesh specifications, insert the sieve frame 4 into the slide groove 31 through the slider 41, and stack multiple sieve frames 4 in the sieve box 3 in order from bottom to top, and ensure that the aperture of the screen 5 at the upper end sieve frame 4 is larger than the aperture of the screen 5 of the lower end sieve frame 4, and then place the soil sample to be screened on the screen 5 of the uppermost sieve frame 4, turn on the vibrating base 1, and the vibration will cause the soil particles to pass through the upper screen 5 in turn and fall on the lower screen 5 to achieve screening. Since the aperture of the screen 5 of the multi-layer sieve frames 4 gradually decreases from top to bottom, the soil particles will be screened by the screens 5 of different layers in order according to their particle size, and the finest soil particles will fall on the screen 5 of the lowest layer;

[0028] Sampling steps: According to the needs of soil testing, determine the sieve frame 4 that needs to be sampled. For example, if the fine sand component in the soil is to be detected, it may be necessary to sample from the bottom sieve frame 4. If the soil particles with medium particle size are to be detected, sample from the middle sieve frame 4. After determination, the sieve frame 4 that needs to be sampled is pulled out from the sieve box 3 through the handle 43. Since the sieve frame 4 and the sieve box 3 are slidably connected, it is very convenient to pull out a single sieve frame 4. Finally, take an appropriate amount of soil sample from the pulled out sieve frame 4 for testing.

[0029] To solve the technical problem of how to fix the sieve to the sieve frame, please refer to Figure 3-Figure 4 , this embodiment provides the following technical solutions:

[0030] The vibrating base 1 is telescopically provided with an insert plate 11 at the rear end of the screen box 3. The insert plate 11 is fixedly connected to the vibrating base 1 through a latch 12. A limiting block 42 is welded to the rear end of the screen frame 4. The limiting block 42 passes through the screen box 3 and is located outside the screen box 3. A limiting groove 421 that is compatible with the insert plate 11 is provided at one end of the limiting block 42 located outside the screen box 3.

[0031] Adjustment holes 111 that match the latch pins 12 are formed at equal intervals on the plug plate 11 .

[0032] A through hole 32 is formed at the rear end of the inner wall of the screen box 3 , and the through hole 32 and the limiting block 42 form a sliding connection.

[0033] Specifically, after inserting the screen frame 4 into the appropriate position in the screen box 3 according to the screening requirements, ensure that the limit block 42 can be located outside the screen box 3 through the through-hole 32, and then adjust the telescopic length of the insert plate 11 according to the fixing requirements of the screen frame 4, and make its end accurately inserted into the limit groove 421 at one end of the limit block 42 outside the screen box 3. After the adjustment is completed, insert the pin 12 into the appropriate adjustment hole 111 to fix the insert plate 11. At this time, the insert plate 11 fixes the screen frame 4 by cooperating with the limit groove 421 to prevent the screen frame 4 from shifting during vibration.

[0034] To solve the technical problem of how to replace the screen, please refer to Figure 5 , this embodiment provides the following technical solutions:

[0035] The bottom of the screen frame 4 is detachably mounted with a screen 5 , screws 44 are welded at the four corners of the bottom of the screen frame 4 , the screen 5 is fixedly connected to the screen frame 4 via the screws 44 and nuts, and a handle 51 is mounted on the upper end of the screen 5 .

[0036] Specifically, first pull the screen frame 4 out of the screen box 3, use a wrench or screwdriver to unscrew the nuts that fix the screen 5, then use the handle 51 to gently lift the screen 5, and then place the new screen 5 on the bottom of the screen frame 4, so that the mounting holes on the screen 5 are aligned with the screws 44 at the bottom of the screen frame 4, pick up the nuts that were unscrewed before, and screw the nuts onto the screws 44 in turn to ensure that the screen 5 is firmly fixed to the bottom of the screen frame 4, and finally reinsert the screen frame 4 into the screen box 3.

[0037] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grading and screening device for soil testing, comprising a vibrating base (1), a tray (2) mounted on the surface of the vibrating base (1), and a screen frame (4), characterized in that: A screen box (3) is fixedly provided at the upper end of the tray (2), the front end of the screen box (3) is open, and slide grooves (31) are provided at the left and right ends of the inner wall thereof, the screen frame (4) is slidably connected to the slide grooves (31) via sliders (41), and a screen mesh (5) is detachably mounted at the bottom of the screen frame (4); The vibration base (1) is telescopically provided with an insert plate (11) at a position located at the rear end of the screen box (3), and the insert plate (11) is fixedly connected to the vibration base (1) via a latch (12). A limiting block (42) is welded to the rear end of the screen frame (4), and the limiting block (42) passes through the screen box (3) and is located outside the screen box (3). A limiting groove (421) adapted to the insert plate (11) is provided at one end of the limiting block (42) located outside the screen box (3).

2. The soil testing grading and screening device according to claim 1, characterized in that: Adjustment holes (111) adapted to the latch pins (12) are provided at equal intervals on the plug plate (11).

3. The soil testing grading and screening device according to claim 1, characterized in that: A through hole (32) is provided at the rear end of the inner wall of the screen box (3), and the through hole (32) is in sliding connection with the limiting block (42).

4. The soil testing grading and screening device according to claim 1, wherein: The chute (31) is provided with a plurality of chute slots (31) at equal intervals, and a plurality of screen frames (4) are stacked up and down in the screen box (3) through the chute slots (31), and the aperture of the screen (5) at the upper end screen frame (4) is larger than the aperture of the screen (5) at the lower end screen frame (4).

5. The soil testing grading and screening device according to claim 1, characterized in that: Screws (44) are welded at the four corners of the bottom of the screen frame (4), and the screen (5) is fixedly connected to the screen frame (4) through the screws (44) and nuts. A handle (51) is installed at the upper end of the screen (5).

6. The soil testing grading and screening device according to claim 1, characterized in that: A handle (43) is installed at the front end of the screen frame (4).

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