Sand screening box for building construction
By designing a screening box with screening and auxiliary mechanisms, the effective separation of fine and coarse sand was achieved, improving screening efficiency and purity, and improving the construction environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 靳子云
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-15
AI Technical Summary
Existing sand screening devices cannot effectively distinguish between fine and coarse sand, resulting in an unbalanced ratio of fine and coarse sand during subsequent use, which affects the quality of the sand.
A sand screening box was designed, which includes a screening mechanism and an auxiliary mechanism. The drive motor drives the rotating rod and the inclined plate to make the large particle filter frame bounce and undulate, which in turn causes the fine filter frame to shake, thus realizing multi-stage screening. Automatic feeding and sealing are achieved through the cooperation of the closing plate and the torsion spring, reducing dust.
This technology enables multi-stage screening of sand, improving screening efficiency and purity to meet the needs of different particle sizes, while also reducing dust leakage and improving the construction environment.
Smart Images
Figure CN224237525U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sand screening equipment technology, and in particular to a sand screening box used in building construction. Background Technology
[0002] Construction refers to the production activities during the implementation phase of a project. It is the process of building various types of buildings, or the process of turning the lines on the design drawings into physical objects at a designated location. It includes foundation construction, main structure construction, roof construction, decoration construction, etc. The place where construction work is carried out is called the "construction site" or "construction site".
[0003] A search revealed Chinese Patent Publication No. CN218167716U, which discloses a sand screening device for construction, including a sand screening box. The screening device comprises an electric telescopic rod, a screen, connecting blocks, and bolts. The electric telescopic rod is fixedly installed inside the sand screening box, and the screen is movably installed on one side of the electric telescopic rod. Connecting blocks are movably installed at both ends of the screen, and bolts are threaded into the connecting blocks. In this sand screening device, sand is first placed into the sand screening box. The electric telescopic rod inside the sand screening box extends and retracts, causing the screen to sway left and right. During this swaying, fine sand particles fall into the sand screening box.
[0004] The above-mentioned devices have the following defects: most sand screening devices are single-use sand screening devices, which cannot distinguish between fine sand and coarse sand, so that subsequent sand can only be used uniformly, resulting in an uncoordinated ratio of fine sand and coarse sand, which affects the quality of sand used in subsequent applications. Therefore, a sand screening box for construction is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a sand screening box for construction, which aims to solve the problem that most existing sand screening devices are single-use and cannot distinguish between fine and coarse sand, resulting in inconsistent fine and coarse sand ratios when subsequent sand is used uniformly.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sand screening box for construction, comprising a sand screening box body and a discharge port frame, wherein the discharge port frame is fixedly connected to the top outer wall of the sand screening box body, a screening mechanism is provided on the sand screening box body, an auxiliary mechanism is provided on the sand screening box body, an inner groove is opened on the front inner wall of the sand screening box body, a drive motor is fixedly connected to the rear outer wall of the sand screening box body, the screening mechanism includes a rotating rod, the rotating rod is rotatably connected to the rear inner wall of the sand screening box body through a bearing, an inclined plate is fixedly connected to the side outer wall of the rotating rod, rollers are rotatably connected to the left and right inner walls of the inclined plate through bearings, a large particle filter frame is slidably connected to the left and right inner walls of the inner groove, a clamping plate is engaged on the front inner wall of the large particle filter frame, a fine filter frame is engaged on the side outer wall of the clamping plate, a fine sand collection box is slidably connected to the bottom inner wall of the inner groove, and a front viewing plate is hinged to the front inner wall of the sand screening box body.
[0007] As a further description of the above technical solution: the auxiliary mechanism includes a support rod, which is rotatably connected to the inner walls of the front and rear sides of the feed port frame via bearings. A fixed plate is fixedly connected to the front end of the support rod, a closing plate is fixedly connected to the outer side of the support rod, a torsion spring is fixedly connected to the outer rear side of the fixed plate, and a limit plate is fixedly connected to the inner top of the feed port frame.
[0008] As a further description of the above technical solution: the rear end of the rotating rod is fixedly connected to the output end of the drive motor through a coupling, the rotating rod is rotatably connected to the rear outer wall of the sand screening box body through a bearing, and the roller contacts the bottom outer wall of the large particle filter frame.
[0009] As a further description of the above technical solution: the bottom inner wall of the large particle filter frame is provided with inclined grooves, which are respectively opened on the top inner wall of the fine sand collection box and the large particle filter frame.
[0010] As a further description of the above technical solution: the fine filter frame is slidably connected to the inner walls of the left and right sides of the inner tank, the fine sand collection box is slidably connected to the inner walls of the left and right sides of the inner tank, and a shock-absorbing pad is fixedly connected to the bottom outer wall of the sand screening box body.
[0011] As a further description of the above technical solution: a paddle is slidably connected to the inner wall of the front side of the front transparent panel, an arc-shaped plate is fixedly connected to the outer right side of the paddle, and a compression spring is fixedly connected to the outer left side of the paddle.
[0012] As a further description of the above technical solution: the arc-shaped plate is snapped onto the inner right side of the sand screening box body, and the end of the compression spring away from the paddle is fixedly connected to the inner side of the front viewing plate.
[0013] As a further description of the above technical solution: the end of the torsion spring away from the fixed plate is fixedly connected to the front outer wall of the feed port frame, and the closing plate contacts the bottom outer wall of the limiting plate.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, through the design of the screening mechanism, the drive motor drives the rotating rod and the inclined plate to make the large particle filter frame bounce and undulate, while the fine filter frame shakes in conjunction, so as to realize multi-stage screening of sand, effectively separating garbage, large particles and fine sand, greatly improving the efficiency and purity of sand screening, and meeting the precise needs of construction for sand of different particle sizes.
[0016] 2. In this utility model, the automatic feeding of sand and the sealing of the discharge port are achieved through the clever combination of the closing plate, torsion spring and limiting plate. While ensuring that the sand enters the main body of the sand screening box smoothly, it effectively prevents dust from leaking out during the screening process, significantly improves the construction environment, and enhances the environmental performance and practicality of the equipment. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall front view of a sand screening box for building construction proposed in this utility model;
[0018] Figure 2 This is a cross-sectional schematic diagram of a sand screening box for building construction proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the screening mechanism of a sand screening box for building construction proposed in this utility model;
[0020] Figure 4 This is a schematic diagram of an auxiliary mechanism for a sand screening box used in building construction, as proposed in this utility model.
[0021] Legend:
[0022] 1. Sand screening box body; 2. Feeding port frame; 3. Vibration damping pad; 4. Inner trough; 5. Drive motor; 6. Screening mechanism; 61. Rotating rod; 62. Inclined plate; 63. Roller; 64. Large particle filter frame; 65. Inclined trough; 66. Clamping plate; 67. Fine filter frame; 68. Fine sand collection box; 69. Transparent front plate; 610. Paddle; 612. Arc plate; 613. Compression spring; 7. Auxiliary mechanism; 71. Support rod; 72. Fixing plate; 73. Closing plate; 74. Torsion spring; 75. Limiting plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Reference Figures 1-3 This utility model provides an embodiment of a sand screening box for construction, comprising a sand screening box body 1 and a discharge port frame 2. The discharge port frame 2 is fixedly connected to the top outer wall of the sand screening box body 1. A screening mechanism 6 and an auxiliary mechanism 7 are provided on the sand screening box body 1. An inner groove 4 is opened on the front inner wall of the sand screening box body 1. A drive motor 5 is fixedly connected to the rear outer wall of the sand screening box body 1. A rotating rod 61 rotates under the drive of the drive motor 5, and a deflector plate 62 is provided. The rotation provides power. The screening mechanism 6 includes a rotating rod 61, which is rotatably connected to the rear inner wall of the sand screening box body 1 via a bearing. An inclined plate 62 is fixedly connected to the outer side wall of the rotating rod 61. Rollers 63 are rotatably connected to the inner walls of the left and right sides of the inclined plate 62 via bearings. Large particle filter frames 64 are slidably connected to the inner walls of the left and right sides of the inner tank 4. A clamping plate 66 is snapped onto the inner front wall of the large particle filter frame 64. A fine filter frame 67 is snapped onto the outer side wall of the clamping plate 66. A fine sand collection box 68 is slidably connected to the inner bottom wall of the inner tank 4. A front viewing plate 69 is hinged to the inner front wall of the sand screening box body 1.
[0025] Reference Figures 2-4The rear end of the rotating rod 61 is fixedly connected to the output end of the drive motor 5 via a coupling. The rotating rod 61 is rotatably connected to the rear outer wall of the sand screening box body 1 via a bearing. The roller 63 contacts the bottom outer wall of the large particle filter frame 64. The bottom inner wall of the large particle filter frame 64 is provided with a sloping groove 65, which facilitates the flow and collection of sand in the large particle filter frame 64 and the fine sand collection box 68. The sloping groove 65 is respectively opened on the top inner wall of the fine sand collection box 68 and the large particle filter frame 64. The fine filter frame 67 is slidably connected to the left and right inner walls of the inner groove 4. The fine sand collection box 68 is slidably connected to the left and right inner walls of the inner groove 4. The fine sand collection box 68 is used to collect the fine sand after two-stage filtration. A shock-absorbing pad 3 is fixedly connected to the bottom outer wall of the sand screening box body 1. This reduces vibration and noise generated during equipment operation. A lever 610 is slidably connected to the inner wall of the front side of the front panel 69. An arc-shaped plate 612 is fixedly connected to the outer right side of the lever 610. A compression spring 613 is fixedly connected to the outer left side of the lever 610. The compression spring 613 provides a restoring force after the lever 610 moves, so that the arc-shaped plate 612 can be re-clamped. The arc-shaped plate 612 is clamped to the inner right side of the sand screening box body 1. The end of the compression spring 613 away from the lever 610 is fixedly connected to the inner side of one side of the front panel 69.
[0026] Reference Figures 3-4 The auxiliary mechanism 7 includes a support rod 71, which is rotatably connected to the inner walls of the front and rear sides of the feed port frame 2 via bearings. A fixed plate 72 is fixedly connected to the front end of the support rod 71, and a closing plate 73 is fixedly connected to the outer side wall of the support rod 71. A torsion spring 74 is fixedly connected to the outer rear wall of the fixed plate 72, which generates a continuous torque on the fixed plate 72. A limit plate 75 is fixedly connected to the inner top wall of the feed port frame 2, and the end of the torsion spring 74 away from the fixed plate 72 is fixedly connected to the outer front wall of the feed port frame 2. The closing plate 73 contacts the outer bottom wall of the limit plate 75, which restricts the rotation range of the closing plate 73 to ensure that it achieves a seal in the appropriate position.
[0027] Working principle: Sand is poured into the large particle filter frame 64 through the feed port 2. At the same time, the drive motor 5 is turned on to rotate the rotating rod 61. The rotation of the rotating rod 61 drives the inclined plate 62 to rotate. The rotation of the inclined plate 62 causes the roller 63 to contact the bottom of the large particle filter frame 64, lifting the large particle filter frame 64. After the inclined plate 62 rotates to a certain angle, the roller 63 disengages from the bottom of the large particle filter frame 64, causing the large particle filter frame 64 to bounce and undulate, filtering and collecting the debris in the sand. The filtered sand falls into the fine filter frame 67. When the large particle filter frame 64 bounces, the clamping plate 66 shakes up and down, and the up and down shaking of the clamping plate 66 causes... The fine filter frame 67 vibrates up and down, collecting large sand particles. The fine sand is filtered and falls into the fine sand collection box 68 for multi-stage screening. At the same time, during the screening process, after the sand falls into the discharge port frame 2, the sand contacts the closing plate 73, causing the closing plate 73 to rotate and sink, allowing the sand to enter the main body 1 of the sand screening box. After the sand addition stops, the torsion spring 74 twists the fixed plate 72 to rotate. The rotation of the fixed plate 72 drives the support rod 71 to rotate, and the rotation of the support rod 71 drives the closing plate 73 to rotate, so that the closing plate 73 returns to its original position and is attached to the limiting plate 75, sealing the discharge port frame 2 and reducing the amount of dust floating to the outside of the main body 1 of the sand screening box during screening.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sand screening box for construction, comprising a sand screening box body (1) and a discharge port frame (2), characterized in that: The discharge port frame (2) is fixedly connected to the top outer wall of the sand screening box body (1). The sand screening box body (1) is provided with a screening mechanism (6). The sand screening box body (1) is provided with an auxiliary mechanism (7). The inner wall of the front side of the sand screening box body (1) is provided with an inner groove (4). The outer wall of the rear side of the sand screening box body (1) is fixedly connected with a drive motor (5). The screening mechanism (6) includes a rotating rod (61), which is rotatably connected to the rear inner wall of the sand screening box body (1) via a bearing. An inclined plate (62) is fixedly connected to the outer side wall of the rotating rod (61). Rollers (63) are rotatably connected to the inner walls of the left and right sides of the inclined plate (62) via bearings. Large particle filter frames (64) are slidably connected to the inner walls of the left and right sides of the inner groove (4). A clamping plate (66) is snapped onto the inner front wall of the large particle filter frame (64). A fine filter frame (67) is snapped onto the outer side wall of the clamping plate (66). A fine sand collection box (68) is slidably connected to the inner bottom wall of the inner groove (4). A front viewing plate (69) is hinged to the inner front wall of the sand screening box body (1).
2. A sand screening box for building construction according to claim 1, characterized in that: The auxiliary mechanism (7) includes a support rod (71), which is rotatably connected to the inner walls of the front and rear sides of the feed port frame (2) via bearings. A fixed plate (72) is fixedly connected to the front end of the support rod (71), a closing plate (73) is fixedly connected to the outer side of the support rod (71), a torsion spring (74) is fixedly connected to the outer rear side of the fixed plate (72), and a limit plate (75) is fixedly connected to the inner top of the feed port frame (2).
3. A sand screening box for building construction according to claim 1, characterized in that: The rear end of the rotating rod (61) is fixedly connected to the output end of the drive machine (5) through a coupling. The rotating rod (61) is rotatably connected to the rear outer wall of the sand screening box body (1) through a bearing. The roller (63) contacts the bottom outer wall of the large particle filter frame (64).
4. A sand screening box for building construction according to claim 1, characterized in that: The bottom inner wall of the large particle filter frame (64) is provided with inclined grooves (65), which are respectively opened on the inner wall of the fine sand collection box (68) and the top inner wall of the large particle filter frame (64).
5. A sand screening box for building construction according to claim 1, characterized in that: The fine filter frame (67) is slidably connected to the inner walls of the left and right sides of the inner tank (4), the fine sand collection box (68) is slidably connected to the inner walls of the left and right sides of the inner tank (4), and the bottom outer wall of the sand screening box body (1) is fixedly connected to the shock-absorbing pad (3).
6. A sand screening box for building construction according to claim 1, characterized in that: A paddle (610) is slidably connected to the inner front wall of the front transparent panel (69), an arc plate (612) is fixedly connected to the outer right side of the paddle (610), and a compression spring (613) is fixedly connected to the outer left side of the paddle (610).
7. A sand screening box for building construction according to claim 6, characterized in that: The arc plate (612) is snapped onto the inner right side of the sand screening box body (1), and the end of the compression spring (613) away from the paddle (610) is fixedly connected to the inner side of the front viewing plate (69).
8. A sand screening box for building construction according to claim 2, characterized in that: The end of the torsion spring (74) away from the fixed plate (72) is fixedly connected to the front outer wall of the feed port frame (2), and the closing plate (73) contacts the bottom outer wall of the limiting plate (75).