Gravel screening device
By designing a sand and gravel screening device with an adjustment structure, the problem of fixed screen mesh size in the prior art is solved, and flexible adjustment of screen mesh is realized, saving operating time and cost.
Patent Information
- Application Number
- CN202421473251.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-06-26
AI Technical Summary
In the existing sand and gravel screening device, the mesh size of the screen mesh is fixed and cannot be adjusted according to actual needs, resulting in the inability to screen sand and gravel of different particle sizes, which increases operating time and labor costs.
A sand and gravel screening device is designed, with a mounting plate and an adjustment structure inside, including a sliding plate, an opening, a fixing plate, a threaded rod, a guide rod and a connecting block. By rotating the handle of the threaded rod, the position of the sliding plate is adjusted, and screens of different mesh sizes are selected for screening.
It realizes flexible adjustment of screens without changing screens, saving time and human resources, reducing the demand for screens of many different specifications, and reducing purchase and maintenance costs.
Smart Images
Figure CN222842542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand and gravel screening, in particular to a sand and gravel screening device. Background Art
[0002] Sand and gravel screening equipment is a device used to separate sand and gravel particles of different sizes from raw materials. It is widely used in construction, mining, excavation and civil engineering.
[0003] The mesh size of the screen in the sand and gravel screening device in the prior art is usually fixed and cannot be adjusted according to actual needs. The screen with a fixed mesh size can only screen out sand and gravel particles within a specific particle size range. If sand and gravel of different particle sizes need to be screened, screens of different mesh sizes must be replaced, which will increase operation time and labor costs.
[0004] Therefore, it is necessary to design a sand and gravel screening device to solve the above problems. Utility Model Content
[0005] The utility model aims to solve the shortcomings in the prior art and proposes a sand and gravel screening device.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A sand and gravel screening device comprises a screening device, wherein a mounting plate is arranged inside the screening device, a mounting opening is opened on the mounting plate, a screen structure is arranged in the mounting opening, and an adjustment structure is arranged on the mounting plate;
[0008] The screen structure includes a plurality of screens 1 and a plurality of screens 2, wherein the plurality of screens 1 and the plurality of screens 2 are arranged alternately, and the plurality of screens 1 and the plurality of screens 2 together form a mesh structure.
[0009] As a preferred technical solution of the utility model, the adjustment structure includes a sliding plate, a plurality of openings, four fixed plates, a threaded rod, a guide rod and two connecting blocks, the sliding plate is placed above the mounting plate, the plurality of openings are opened on the sliding plate, the four fixed plates are respectively fixed at the four corners of the top surface of the mounting plate, the threaded rod is rotatably installed between two of the opposite fixed plates, the guide rod is fixed between the other two opposite fixed plates, the two connecting blocks are respectively fixed at both ends of the sliding plate, one of the connecting blocks is threadedly sleeved on the threaded rod, and the other connecting block is slidably sleeved on the guide rod.
[0010] As a preferred technical solution of the utility model, the bottom surface of the sliding plate and the top surface of the mounting plate are in contact with each other.
[0011] As a preferred technical solution of the utility model, the plurality of openings are distributed in a linear array.
[0012] As a preferred technical solution of the utility model, a handle is installed at one end of the threaded rod.
[0013] As a preferred technical solution of the present invention, the mesh sizes of the sieve 1 and the sieve 2 are different.
[0014] The utility model has the following beneficial effects:
[0015] 1. Flexibility and convenience: The staff can adjust the position of the sliding plate by simply turning the handle of the threaded rod, thereby choosing to use screen one or screen two for screening. This adjustment method is very convenient and does not require the replacement of the screen, saving time and human resources.
[0016] 2. Cost saving: Since the screen does not need to be replaced frequently, the device reduces the demand for screens of various specifications, thereby saving the cost of purchasing and maintaining the screen. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a structural schematic diagram of a sand and gravel screening device proposed by the utility model;
[0018] Figure 2 Schematic diagram of the screening structure and the regulatory structure.
[0019] In the figure: 1 screening device, 2 mounting plate, 3 mounting opening, 41 screen 1, 42 screen 2, 51 sliding plate, 52 opening, 53 fixing plate, 54 threaded rod, 55 guide rod, 56 connecting block. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0021] Reference Figure 1-2 A sand and gravel screening device comprises a screening device 1, wherein a mounting plate 2 is arranged inside the screening device 1, a mounting opening 3 is opened on the mounting plate 2, a screen structure is arranged in the mounting opening 3, the screen structure comprises a plurality of screens 1 41 and a plurality of screens 2 42, the mesh sizes of the screens 1 41 and the screens 2 42 are different, the plurality of screens 1 41 and the plurality of screens 2 42 are arranged alternately, the plurality of screens 1 41 and the plurality of screens 2 42 together form a mesh structure, and a staff member can select the screen 1 41 or the screen 2 42 to screen sand and gravel by adjusting the position of a sliding plate 51, without replacing the screen;
[0022] The mounting plate 2 is provided with an adjustment structure, which includes a sliding plate 51, a plurality of openings 52, four fixed plates 53, a threaded rod 54, a guide rod 55 and two connecting blocks 56. The sliding plate 51 is placed above the mounting plate 2, and the bottom surface of the sliding plate 51 and the top surface of the mounting plate 2 fit each other. The plurality of openings 52 are all provided on the sliding plate 51, and the plurality of openings 52 are distributed in a linear array. The four fixed plates 53 are respectively fixed at the four corners of the top surface of the mounting plate 2. The threaded rod 54 is rotatably installed between two of the fixed plates 53 facing each other, and one end of the threaded rod 54 is installed There is a handle, and the guide rod 55 is fixed between the other two opposite fixed plates 53. Two connecting blocks 56 are respectively fixed at the two ends of the sliding plate 51. One of the connecting blocks 56 is threadedly sleeved on the threaded rod 54, and the other connecting block 56 is slidably sleeved on the guide rod 55. The staff rotates the handle at one end of the threaded rod 54 to rotate the threaded rod 54. Under the limiting action of the guide rod 55, the threaded rod 54 can drive the corresponding connecting block 56 to move when it rotates, which makes the sliding plate 51 move. When the sliding plate 51 moves, the plurality of openings 52 will also move accordingly.
[0023] The specific working principle of the utility model is as follows:
[0024] In the initial state, the plurality of openings 52 are respectively opposite to the plurality of screen meshes 41, and the sliding plate 51 blocks the plurality of screen meshes 42. In this case, sand and gravel will fall onto the plurality of screen meshes 41 through the plurality of openings 52, and the plurality of screen meshes 41 will perform drying and screening on the sand and gravel. When screen meshes of different specifications need to be used, the staff member rotates the handle at one end of the threaded rod 54 to rotate the threaded rod 54. Under the limiting action of the guide rod 55, the threaded rod 54 can drive the corresponding connecting block 56 to move when it rotates, which causes the sliding plate 51 to move. When the sliding plate 51 moves, the plurality of openings 52 will also move accordingly until the plurality of openings 52 move to a position opposite to the plurality of screen meshes 42. At this time, the sliding plate 51 can block the plurality of screen meshes 41, and the sand and gravel will fall onto the plurality of screen meshes 42 through the plurality of openings 52, and the plurality of screen meshes 42 will perform drying and screening on the sand and gravel. In summary, the staff member can select screen mesh 1 41 or screen mesh 2 42 to screen the sand and gravel by adjusting the position of the sliding plate 51, without having to replace the screen mesh.
[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A sand and gravel screening device, comprising a screening device (1), characterized in that: The screening device (1) is provided with a mounting plate (2) inside, the mounting plate (2) is provided with a mounting opening (3), a screen structure is provided inside the mounting opening (3), and an adjustment structure is provided on the mounting plate (2); The screen structure comprises a plurality of screens one (41) and a plurality of screens two (42), wherein the plurality of screens one (41) and the plurality of screens two (42) are arranged alternately, and the plurality of screens one (41) and the plurality of screens two (42) together form a mesh structure.
2. A sand and gravel screening device according to claim 1, characterized in that: The adjustment structure comprises a sliding plate (51), a plurality of openings (52), four fixed plates (53), a threaded rod (54), a guide rod (55) and two connecting blocks (56); the sliding plate (51) is placed above the mounting plate (2); the plurality of openings (52) are all arranged on the sliding plate (51); the four fixed plates (53) are respectively fixed at the four corners of the top surface of the mounting plate (2); the threaded rod (54) is rotatably mounted between two of the fixed plates (53) facing each other; the guide rod (55) is fixed between the other two fixed plates (53) facing each other; the two connecting blocks (56) are respectively fixed at two ends of the sliding plate (51); one of the connecting blocks (56) is threadedly sleeved on the threaded rod (54); and the other of the connecting blocks (56) is slidably sleeved on the guide rod (55).
3. A sand and gravel screening device according to claim 2, characterized in that: The bottom surface of the sliding plate (51) and the top surface of the mounting plate (2) are in contact with each other.
4. A sand and gravel screening device according to claim 2, characterized in that: The plurality of openings (52) are distributed in a linear array.
5. A sand and gravel screening device according to claim 2, characterized in that: A handle is installed at one end of the threaded rod (54).
6. A sand and gravel screening device according to claim 1, characterized in that: The mesh sizes of the sieve 1 (41) and the sieve 2 (42) are different.