Sand screening device

Abstract

The utility model relates to the field of sand screening devices, in particular to a sand screening device which comprises a fixing plate, a material collecting groove, a sand screening frame and a material blocking assembly. The material receiving groove is rotationally arranged on the fixed plate; the sand screening frame is arranged on the material receiving groove in a sliding mode, a sliding assembly for driving the sand screening frame to slide is arranged on the material receiving groove, two sets of screening net plates are arranged on the sand screening frame, and the sizes of meshes of the two sets of screening net plates are sequentially decreased; the material blocking assembly is arranged on the sand screening frame and used for distributing sand. According to the sand screening device, the multiple sets of screening net plates, the material blocking assembly and the swing device are arranged and used in cooperation, sand can be screened for multiple times, impurities in the sand can be removed more thoroughly, the screening efficiency is improved, and the quality of final products is ensured; and the particle size of the sand can be refined, so that the sand is more uniform, and different types of construction requirements such as concrete preparation and mortar construction are met.

Description

Technical Field

[0001] The utility model relates to the field of sand screening devices, in particular to a sand screening device. Background Art

[0002] Sand is an essential material for building construction and decoration, so a sand screening device is needed to screen the sand. Its function is to screen the original sand, remove impurities and adjust the particle size of the sand as needed to meet specific construction needs. This device can usually be moved and adjusted according to the needs of the construction site to improve construction efficiency and sand quality.

[0003] The Chinese patent with the authorization announcement number CN218554719U discloses a sand screening device for construction, including a square frame plate, a cross slot is provided on the top of the square frame plate, a cross block is slidably connected inside the cross slot, and a mesh frame is fixedly connected on the top of the cross block. The sand screening device for construction has the effect of improving the sand screening efficiency through the arrangement of the cross block, the mesh frame, the screen, the vertical plate, the support spring, the first fixed plate, the support rod and the elliptical block. During use, the elliptical block rotates, the support spring tension supports or compresses, so that the cross block moves inside the cross slot, and the mesh frame moves back and forth, which is convenient for sand screening. The rotating baffle is convenient for cleaning out the debris remaining on the screen after sand screening, thereby improving the sand screening efficiency and achieving the purpose of improving the sand screening efficiency.

[0004] However, the device still has shortcomings: the device can only screen the sand once, which will affect the screening effect of the sand and thus reduce the quality of the sand when in use. Utility Model Content

[0005] The utility model aims to propose a sand screening device in view of the problem of uneven screening existing in the background technology.

[0006] The technical solution of the utility model: a sand screening device, comprising:

[0007] Fixed plate;

[0008] A material receiving chute, which is rotatably mounted on a fixed plate;

[0009] A sand screening frame is slidably arranged on a material receiving trough, a sliding assembly for driving the sand screening frame to slide is arranged on the material receiving trough, and a plurality of groups of screening mesh plates are arranged on the sand screening frame;

[0010] And a material blocking assembly is arranged on the sand screening frame and is used for separating the sand.

[0011] Preferably, a swing device for driving the material receiving chute to rotate is provided on the fixed plate.

[0012] Preferably, the sliding assembly comprises:

[0013] A first driving device, which is arranged on the material receiving trough;

[0014] a first connecting rod connected to the first driving device;

[0015] The second connecting rod, two ends of which are rotatably connected to the first connecting rod and the sand screening frame respectively;

[0016] A sliding block is arranged on the sand screening frame and is slidably connected with the material receiving trough;

[0017] And an elastic sheet, two ends of which are respectively connected with the material receiving trough and the sand screening frame.

[0018] Preferably, the mesh sizes of the two groups of screening mesh plates become smaller in sequence.

[0019] Preferably, the material blocking assembly comprises:

[0020] A material baffle plate, which is slidably arranged on the sand screening frame;

[0021] And a rack is arranged on the material baffle plate and passes through the sand screening frame. The sand screening frame is provided with a driving mechanism for driving the rack and the material baffle plate to slide.

[0022] Preferably, the driving mechanism comprises:

[0023] A second driving device, which is arranged on the sand screening frame;

[0024] a rotating column connected to a second driving device;

[0025] and a gear which is arranged on the rotating column and meshes with the rack.

[0026] Compared with the prior art, the utility model has the following beneficial technical effects:

[0027] By setting up multiple sets of screening mesh plates, material retaining components and swinging devices for coordinated use, the sand can be screened multiple times, so that impurities in the sand can be removed more thoroughly, thereby improving the screening efficiency and ensuring the quality of the final product; and the particle size of the sand can be refined to make it more uniform, which is suitable for different types of construction needs, such as concrete preparation, mortar construction, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0029] Figure 2 is a structural schematic diagram of a sliding component;

[0030] Figure 3 for Figure 1 Side view of.

[0031] Figure numerals: 1. fixed plate; 2. cylinder; 3. material receiving trough; 4. first motor; 5. first connecting rod; 6. first connecting column; 7. second connecting rod; 8. second connecting column; 9. sand screening frame; 10. elastic sheet; 11. rotating column; 12. gear; 13. rack; 14. material baffle plate; 15. screening mesh plate; 16. connecting frame; 17. baffle; 18. slider; 19. second motor. DETAILED DESCRIPTION

[0032] Embodiment 1

[0033] like Figure 1-Figure 3 As shown, a sand screening device proposed by the utility model comprises a fixing plate 1, a material receiving trough 3, a sand screening frame 9 and a material blocking assembly;

[0034] The material receiving trough 3 is rotatably arranged on the fixed plate 1; the sand screening frame 9 is slidably arranged on the material receiving trough 3, and a sliding component for driving the sand screening frame 9 to slide is arranged on the material receiving trough 3, and two groups of screening mesh plates 15 are arranged on the sand screening frame 9, and the mesh sizes of the two groups of screening mesh plates 15 become smaller in sequence; the material blocking component is arranged on the sand screening frame 9, and is used to separate the sand.

[0035] like Figure 1-Figure 2 As shown, a swinging device for driving the material receiving trough 3 to rotate is provided on the fixed plate 1, and the swinging device is selected as a cylinder 2. The cylinder 2 is arranged around the top of the fixed plate 1, and a connecting frame 16 is provided at the bottom of the material receiving trough 3. The telescopic end of the cylinder 2 is rotatably connected to the connecting frame 16.

[0036] like Figure 1-Figure 3 As shown, the sliding assembly includes a first driving device, a first connecting rod 5, a second connecting rod 7, a sliding block 18 and an elastic sheet 10; the first driving device is arranged on the material receiving trough 3, and the first driving device is selected to be a first motor 4; the first connecting rod 5 is connected to the output shaft of the first motor 4; the two ends of the second connecting rod 7 are respectively rotatably connected with the first connecting rod 5 and the sand screening frame 9, a first connecting column 6 is arranged at one end of the first connecting rod 5, and a second connecting column 8 is arranged at one side of the sand screening frame 9, and the two ends of the second connecting rod 7 are respectively rotatably connected with the first connecting column 6 and the second connecting column 8; the sliding block 18 is arranged on the sand screening frame 9 and is slidably connected with the material receiving trough 3, a baffle 17 is arranged in the middle of the material receiving trough 3, and the sliding block 18 is slidably connected with the baffle 17; the two ends of the elastic sheet 10 are respectively connected with the material receiving trough 3 and the sand screening frame 9.

[0037] Embodiment 2

[0038] The utility model provides a sand screening device. Compared with the first embodiment, the present embodiment further describes the structure of the material blocking assembly in detail.

[0039] like Figure 2As shown, the material baffle assembly includes a material baffle plate 14 and a rack 13; the material baffle plate 14 is slidably set in the middle of the sand screening frame 9; the rack 13 is set on the material baffle plate 14 and passes through the sand screening frame 9, and the sand screening frame 9 is provided with a driving mechanism for driving the rack 13 and the material baffle plate 14 to slide; the driving mechanism includes a second driving device, a rotating column 11 and a gear 12; the second driving device is set on one side of the sand screening frame 9, and the second driving device is selected to be a second motor 19; the rotating column 11 is connected to the output shaft of the second motor 19; the gear 12 is set on the rotating column 11 and meshed with the rack 13, and the coordinated use of multiple groups of screening mesh plates 15, material baffle assemblies and swinging devices can screen the sand multiple times, so that impurities in the sand can be removed more thoroughly, thereby improving the screening efficiency and ensuring the quality of the final product.

[0040] In summary, when the utility model is in use and sand screening is needed during building construction and decoration construction, the sand is first poured onto the smaller screening mesh plate 15 on the sand screening frame 9, and then the first motor 4 is turned on to drive the first connecting rod 5 and the first connecting column 6 to rotate, thereby driving the second connecting rod 7 to rotate, thereby driving the sand screening frame 9 and the slider 18 to slide on the baffle 17, so as to screen the sand, and the larger sand and gravel remaining on the screening mesh plate 15 is first driven by turning on the second motor 19, thereby driving the rotating column 11 and the gear 12 to rotate, thereby driving the rack 13 and the baffle plate 14 to slide up and down, and when the baffle plate 14 slides upward, the two groups of cylinders 2 away from the first motor 4 are turned on to drive the receiving trough 3 and the sand screening frame 9 to rotate, thereby moving the larger sand and gravel on one group of screening mesh plates 15 to another group of screening mesh plates 15, so that the sand can be screened more finely, which is suitable for different types of construction needs.

[0041] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A sand screening device, characterized in that: include: Fixed plate (1); A material receiving trough (3) rotatably mounted on the fixed plate (1); A sand screening frame (9) is slidably arranged on the material receiving trough (3), a sliding assembly for driving the sand screening frame (9) to slide is arranged on the material receiving trough (3), and a plurality of groups of screening mesh plates (15) are arranged on the sand screening frame (9); And a material blocking assembly, which is arranged on the sand screening frame (9) and is used for separating the sand.

2. The sand screening device according to claim 1, characterized in that: The fixed plate (1) is provided with a swing device for driving the material receiving trough (3) to rotate.

3. The sand screening device according to claim 1, characterized in that: The sliding assembly includes: A first driving device, which is arranged on the material receiving trough (3); A first connecting rod (5) connected to a first driving device; A second connecting rod (7), both ends of which are rotatably connected to the first connecting rod (5) and the sand screening frame (9); A sliding block (18) is arranged on the sand screening frame (9) and is slidably connected to the material receiving trough (3); And an elastic sheet (10), two ends of which are respectively connected to the material receiving trough (3) and the sand screening frame (9).

4. The sand screening device according to claim 1, characterized in that: The mesh sizes of the two groups of screening mesh plates (15) become smaller in sequence.

5. The sand screening device according to claim 1, characterized in that: The material retaining assembly includes: A material blocking plate (14) is slidably arranged on the sand screening frame (9); and a rack (13) which is arranged on the material baffle plate (14) and passes through the sand screening frame (9); and a driving mechanism for driving the rack (13) and the material baffle plate (14) to slide is arranged on the sand screening frame (9).

6. The sand screening device according to claim 5, characterized in that: The driving mechanism includes: A second driving device, which is arranged on the sand screening frame (9); A rotating column (11) connected to a second driving device; and a gear (12) which is arranged on the rotating column (11) and meshes with the rack (13).

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