Sand screening device for house building
By combining the feeding mechanism and the screening mechanism, and using a servo motor and a swing assembly to achieve reciprocating screening of sand, the problem of sand not being dispersed in existing devices is solved, and screening efficiency and quality are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUSHUN MINING IND GROUP
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-24
AI Technical Summary
Existing sand screening devices used in building construction affect the screening effect when the sand is not dispersed, resulting in low screening efficiency.
The design combines a feeding mechanism and a screening mechanism. A servo motor drives a rotating shaft and feeding paddles to feed sand into the screening frame in an orderly manner. Combined with a swing assembly, the screening frame swings alternately, increasing the contact area between the sand and the screening frame to achieve reciprocating screening.
It improves the efficiency and quality of sand screening, ensures full contact between the sand and the screening frame, and enhances the screening effect.
Smart Images
Figure CN224542277U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a sand screening device for building construction. Background Technology
[0002] An existing sand screening device for building construction, with publication number CN 217289229 U, utilizes a drive motor to rotate a cam. Since the cam abuts against a push rod, its rotation pushes the push rod to move left and right. Because the push rod is fixedly connected to a filter frame, its movement causes the filter frame to move as well. The filter frame is connected to the inner wall of the housing via a telescopic rod, and a spring is installed on the outer surface of the telescopic rod. When the filter frame presses against the telescopic rod, the spring causes the filter frame to move in the opposite direction, allowing it to reciprocate. Since a filter plate is installed inside the filter frame, it filters sand as the frame moves left and right. However, this sand screening device, which screens sand by moving the filter frame horizontally, may experience issues during use due to the weight of the sand, preventing it from dispersing properly and affecting the screening effect. Utility Model Content
[0003] The purpose of this invention is to provide a sand screening device for building construction in order to solve the above-mentioned problems.
[0004] This utility model achieves the above objectives through the following technical solutions: A sand screening device for building construction includes a support mechanism, comprising upright plates arranged opposite each other, with top plates fixed to the upper sides of the upright plates, and a guide plate inclinedly arranged between the upright plates at a lower position. The support mechanism also includes a feeding mechanism disposed on the upper side of the upright plates, and a screening mechanism disposed below the feeding mechanism for reciprocatingly oscillating and screening the falling sand. The feeding mechanism includes a feeding hopper fixed at the middle position between the upright plates, with a rotating shaft disposed inside the feeding hopper. Both ends of the rotating shaft pass through the upright plates, with one end connected to a servo motor. Feeding blades are evenly distributed around the outer diameter of the rotating shaft. The screening mechanism includes a screening screen frame disposed below the feeding hopper, with a support shaft fixed at the middle position of the lower end of the screening screen frame. Both ends of the support shaft pass through the upright plates, with one end of the support shaft connected to an oscillating component. Inclined slag discharge plates are disposed on both sides between the upright plates, with a slag discharge port opened at the lowest end of the slag discharge plate on each upright plate.
[0005] Further configuration: The rocking assembly includes a gear fixed to one end of the support shaft, a rack meshing with the lower side of the gear, a sliding seat fixed to the lower end of the rack, a reciprocating screw horizontally connected to the sliding seat, the reciprocating screw being mounted on the upright plate via the support seat, a groove being provided on the upright plate to cooperate with the sliding seat, and a reduction motor being connected to one end of the reciprocating screw.
[0006] Further features: Arc-shaped grooves are provided on both sides of the upright plate, and auxiliary rods are fixedly installed on both sides of the lower end of the screening frame. The two ends of the auxiliary rods are inserted into the arc-shaped grooves and slide.
[0007] Further settings: the arc of the arc-shaped chute is between 30° and 60°, and the slag discharge plate is located at the lowest point when the screening screen frame is at its maximum upward angle.
[0008] Further configuration: The rotating shaft is rotatably connected to the vertical plate, the lower part of the feeding hopper is vertical, and the feeding blade is tangent to the inner wall of the vertical position of the feeding hopper.
[0009] Further configuration: The support shaft is rotatably connected to the vertical plate, and the reciprocating screw is threadedly connected to the sliding seat.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting up a feeding mechanism and a screening mechanism, the rotating shaft and feeding paddle of the feeding mechanism rotate to stably drop the sand in the feeding hopper onto the screening mechanism. The oscillating component drives the screening screen frame on the support shaft to oscillate alternately around the support shaft, causing the sand falling onto the screening screen frame to be screened back and forth, increasing the contact area between the sand and the screening screen frame, and improving the efficiency and quality of sand screening. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the structure of a sand screening device for building construction as described in this utility model; Figure 2 This is a schematic diagram of the structure of a sand screening device for building construction described in this utility model from another perspective; Figure 3 This is a schematic diagram of the structure of some parts of a sand screening device for building construction according to the present invention; Figure 4 yes Figure 3 Another perspective structural diagram; Figure 5 This is a schematic diagram of the screening mechanism of a sand screening device for building construction described in this utility model; Figure 6 This is a schematic diagram of the material feeding mechanism of a sand screening device for building construction described in this utility model.
[0013] The annotations in the attached figures are explained as follows: 1. Vertical plate; 11. Arc-shaped chute; 12. Top plate; 13. Slag discharge plate; 14. Guide plate; 15. Slag discharge port; 21. Feed hopper; 22. Rotating shaft; 23. Feeding paddle; 24. Servo motor; 31. Screening frame; 32. Support shaft; 33. Gear; 34. Rack; 35. Sliding seat; 36. Reciprocating screw; 37. Gear motor; 38. Auxiliary rod. Detailed Implementation
[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0016] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-6 As shown, a sand screening device for building construction includes a support mechanism, which includes upright plates 1 arranged in opposite directions. Top plates 12 are fixed on both sides of the upper end of the upright plates 1. A guide plate 14 is inclinedly arranged between the upright plates 1 at the lower position. It also includes a feeding mechanism arranged on the upper side of the upright plates 1. A screening mechanism for reciprocating swaying and screening the falling sand is arranged on the lower side of the feeding mechanism. In this embodiment: the feeding mechanism includes a feeding hopper 21 fixed in the middle between the vertical plates 1. A rotating shaft 22 is provided inside the feeding hopper 21. Both ends of the rotating shaft 22 pass through the vertical plates 1. One end is connected to a servo motor 24. Feeding paddles 23 are evenly distributed on the outer diameter of the rotating shaft 22. The rotating shaft 22 is rotatably connected to the vertical plate 1. The feeding hopper 21 is vertical at the lower position. The feeding paddles 23 are tangent to the inner wall of the vertical position of the feeding hopper 21. The servo motor 24 drives the rotating shaft 22 and the feeding paddles 23 to rotate, so that the feeding paddles 23 orderly feed the sand into the screening mechanism on the lower side. In this embodiment: the screening mechanism includes a screening screen frame 31 set on the lower side of the feeding hopper 21. A support shaft 32 is fixed at the middle position of the lower end of the screening screen frame 31. Both ends of the support shaft 32 pass through the vertical plate 1. One end of the support shaft 32 is connected to a swing component. Inclined slag discharge plates 13 are set on both sides of the vertical plate 1. A slag discharge port 15 is opened on the vertical plate 1 at the lowest end of the slag discharge plate 13.
[0017] The oscillating assembly includes a gear 33 fixed to one end of a support shaft 32, a rack 34 meshing with the lower side of the gear 33, a sliding seat 35 fixed to the lower end of the rack 34, a reciprocating screw 36 horizontally connected to the sliding seat 35, the reciprocating screw 36 being mounted on a vertical plate 1 via a support, a groove on the vertical plate 1 that mates with the sliding seat 35, and a reduction motor 37 connected to one end of the reciprocating screw 36; arc-shaped grooves 11 are formed on both sides of the vertical plate 1, and auxiliary rods 38 are fixedly installed on both sides of the lower end of the screening frame 31, with both ends of the auxiliary rods 38 sliding within the arc-shaped grooves 11; the arc of the arc-shaped grooves 11 is between 30° and 60°, and the slag discharge plate 13 is located at the lowest point when the screening frame 31 is at its maximum elevation angle; the support shaft 32 is rotatably connected to the vertical plate 1, and the reciprocating screw 36 is threadedly connected to the sliding seat 35; The working of the geared motor 37 drives the reciprocating screw 36 to rotate, which in turn pushes the sliding seat 35 to move back and forth under the limit of the vertical plate 1. The rack 34 on the sliding seat 35 meshes with the gear 33 as the sliding seat 35 moves, which drives the support shaft 32 connected to the gear 33 to rotate. This causes the screening frame 31 on the support shaft 32 to swing alternately around the support shaft 32. The auxiliary rod 38 guides and limits the sand falling on the screening frame 31 in the arc-shaped groove 11 of the vertical plate 1, so that the sand falling on the screening frame 31 is screened upwards and backwards, which increases the contact area between the sand and the screening frame 31. The sand passing through the screening frame 31 flows out to one side through the guide plate 14. Large particles of impurities on the screening frame 31 slide onto the slag discharge plate 13 and are discharged through the slag discharge port 15 when the screening frame 31 is at its maximum angle.
[0018] The working principle and usage of this utility model are as follows: Construction sand is added to the feeding hopper 21. The servo motor 24 drives the rotating shaft 22 and the feeding paddle 23 to rotate, causing the feeding paddle 23 to push the sand into the middle of the lower screening frame 31. Simultaneously, the reduction motor 37 drives the reciprocating screw 36 to rotate, causing the reciprocating screw 36 to push the sliding seat 35 to reciprocate within the limit of the vertical plate 1. The rack 34 on the sliding seat 35 meshes with the gear 33 as the sliding seat 35 moves, driving the gear 33 to continuously mesh. The support shaft 32 rotates, causing the screening screen frame 31 on the support shaft 32 to swing alternately around the support shaft 32, which reciprocates the upward screening of the sand falling on the screening screen frame 31, increasing the contact area between the sand and the screening screen frame 31. The sand passing through the screening screen frame 31 flows out to one side through the guide plate 14. Large particles of impurities on the screening screen frame 31 slide onto the slag discharge plate 13 and are discharged through the slag discharge port 15 when the screening screen frame 31 is at its maximum upward angle, further increasing the contact area between the sand and the screening screen frame 31.
[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A sand screening device for building construction, comprising a support mechanism, the support mechanism comprising upright plates (1) arranged opposite each other, top plates (12) fixed on both sides of the upper end of the upright plates (1), and guide plates (14) inclinedly arranged between the upright plates (1) at a lower position, characterized in that: It also includes a feeding mechanism disposed on the upper side of the vertical plate (1), and a screening mechanism for reciprocatingly sieving the falling sand is disposed on the lower side of the feeding mechanism. The feeding mechanism includes a feeding hopper (21) fixed at the middle position between the vertical plates (1), and a rotating shaft (22) is disposed inside the feeding hopper (21). Both ends of the rotating shaft (22) pass through the vertical plate (1), and one end is connected to a servo motor (24). Feeding paddles (2) are evenly distributed around the outer diameter of the rotating shaft (22). 3); The screening mechanism includes a screening screen frame (31) set on the lower side of the feeding hopper (21). A support shaft (32) is fixed at the middle position of the lower end of the screening screen frame (31). Both ends of the support shaft (32) pass through the vertical plate (1). One end of the support shaft (32) is connected to a swing component. Inclined slag discharge plates (13) are set on both sides of the vertical plate (1). A slag discharge port (15) is opened on the vertical plate (1) at the lowest end of the slag discharge plate (13).
2. The sand screening device for building construction according to claim 1, characterized in that: The rocking assembly includes a gear (33) fixed to one end of the support shaft (32), a rack (34) meshing with the lower side of the gear (33), a sliding seat (35) fixed to the lower end of the rack (34), a reciprocating screw (36) horizontally connected to the sliding seat (35), the reciprocating screw (36) being mounted on the upright plate (1) via a support seat, a groove that mates with the sliding seat (35) being provided on the upright plate (1), and a reduction motor (37) connected to one end of the reciprocating screw (36).
3. The sand screening device for building construction according to claim 1, characterized in that: The upright plate (1) has arc-shaped grooves (11) on both sides. The screening frame (31) has auxiliary rods (38) fixedly installed on both sides at the lower end. The two ends of the auxiliary rods (38) are inserted into the arc-shaped grooves (11) and slide.
4. A sand screening device for building construction according to claim 3, characterized in that: The arc of the arc-shaped chute (11) is between 30° and 60°, and the slag discharge plate (13) is located at the lowest point when the screening frame (31) is at its maximum elevation angle.
5. A sand screening device for building construction according to claim 1, characterized in that: The rotating shaft (22) is rotatably connected to the vertical plate (1), the feeding hopper (21) is vertically positioned at the lower end, and the feeding paddle (23) is tangent to the inner wall of the vertical position of the feeding hopper (21).
6. A sand screening device for building construction according to claim 2, characterized in that: The support shaft (32) is rotatably connected to the vertical plate (1), and the reciprocating screw (36) is threadedly connected to the sliding seat (35).