Building aggregate multi-stage screening equipment

Abstract

The utility model discloses building aggregate multistage screening equipment, and relates to the technical field of building construction equipment, the building aggregate multistage screening equipment comprises a device main body, a first screening plate, a second screening plate and a second spring, the top of the device main body is provided with a feed inlet, the bottom of the feed inlet is welded with the top of the device main body, and bearings are embedded in the two sides of the bottom of the device main body; the interiors of the bearings are slidably connected with sliding rods, one ends of the four sliding rods are welded to the side face of the first screening plate, when aggregate falls onto the surface of a third screening plate through a feeding port, the third screening plate can downwards compress second springs on the two sides after being impacted, and then buffering is conducted through the second springs; and therefore, the impact on the aggregate can be buffered, and the damage to the sieve plate when the aggregate falls down can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, specifically to a multi-stage screening device for building aggregates. Background Technology

[0002] Aggregates are a common material in construction. They require multi-stage screening to select suitable aggregates for use. A search revealed a Chinese patent publication number (CN220295143U) that discloses a multi-stage screening device for building aggregates. While this device employs multi-stage screening to separate materials, features automatic feeding, and effectively blocks dust and smoke, significantly improving air quality, the weight of the aggregates causes them to fall vertically within the device. This results in the aggregates directly impacting the screen, leading to prolonged stress, deformation, and a shortened lifespan. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a multi-stage screening device for building aggregates, which solves the problem mentioned in the background art that when existing devices sort aggregates, the aggregates impact the screen surface for a long time, leading to easy deformation and shortened service life.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage screening device for building aggregates, comprising a main body, a first screen plate, a second screen plate, and a second spring. The main body has a feed inlet at its top, the bottom of which is welded to the top of the main body. Bearings are embedded inside both sides of the bottom of the main body, and the bearings are slidably connected to sliding rods. Four sliding rods are provided, one end of each rod is welded to the side of the first screen plate, and a first spring is fitted onto the outside of each rod. A vibration motor is bolted to one side of the first screen plate. A second screen plate is positioned above the first screen plate, and a third screen plate is positioned above the second screen plate. Telescopic rods are provided on both sides of the second screen plate, and a second spring is fitted onto the outside of each telescopic rod. The entire device is controlled by an external control device.

[0005] Preferably, the two sides of the second screen plate are rotatably connected to one end of the telescopic rod, and the other end of the telescopic rod is rotatably connected to the two sides of the first screen plate and the third screen plate respectively. When the second screen plate and the third screen plate are buffered downward, the telescopic rod will extend and retract, thereby allowing the second screen plate and the third screen plate to return to their original position upward under the push of the second spring.

[0006] Preferably, the first screen plate is welded to the bottom end of the limiting rod on both sides, and the outer wall of the limiting rod is slidably connected to the sides of the second screen plate and the third screen plate respectively. The limiting rod is arranged vertically, and under the action of the limiting rod, the second limiting rod and the third limiting rod can limit their stroke, so that they can only move in the vertical direction during buffering.

[0007] Preferably, the surfaces of the first screen plate, the second screen plate, and the third screen plate are all provided with screen holes. The screen holes on the surface of the first screen plate are smaller than those on the surface of the second screen plate, and the screen holes on the surface of the second screen plate are smaller than those on the surface of the third screen plate. This is beneficial for the aggregates to be screened sequentially from top to bottom. Since the large aggregates are screened by the third screen plate and the second screen plate, the smaller aggregates will not have a large impact on the first screen plate.

[0008] Preferably, the first, second, and third screen plates are arranged at an angle, and there are gaps between the two sides of the third screen plate and the inner wall of the main body of the device, so that the screened aggregate can be discharged in stages through the other end of the first, second, and third screen plates.

[0009] Preferably, the surfaces of the first screen plate, the second screen plate, and the third screen plate are all provided with guide plates. There are multiple guide plates, and the multiple guide plates are distributed in a staggered manner. The guide plates are inclined, which helps to extend the travel of the aggregate on each screen plate, thereby facilitating the full screening of the aggregate.

[0010] This utility model provides a multi-stage screening device for building aggregates. It has the following beneficial effects:

[0011] (1) The multi-stage screening equipment for building aggregates, when in use, the first screen plate is driven to shake horizontally by a vibrating motor, and then the aggregate falls onto the third screen plate through the feed inlet. Through the shaking of the third screen plate, the aggregate on the surface of the third screen plate can be screened. Smaller aggregates will fall onto the surface of the second screen plate and the first screen plate in sequence through the screen holes, thereby achieving graded screening. When the aggregate falls onto the surface of the third screen plate through the feed inlet, the third screen plate will compress the second springs on both sides after being impacted, and then buffer through the second springs, which helps to buffer the impact of the aggregate, and thus helps to reduce the damage to the screen plate when the aggregate falls.

[0012] (2) The multi-stage screening equipment for building aggregates has multiple guide plates on the surface of the first screen plate, the second screen plate and the third screen plate, so that when the aggregate passes through the slope of the screen plate to the other end, it can move in a detour under the action of the guide plates, thereby extending the travel of the aggregate on each screen plate, which is conducive to the full screening of the aggregate.

[0013] This solves the problem that in existing equipment, aggregates impact the screen surface for a long time during sorting, leading to easy deformation and shortened service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the second spring structure of this utility model;

[0017] Figure 4 This is a side view of the structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the guide plate structure of this utility model.

[0019] In the diagram, 1. Main body of the device; 2. Feed inlet; 3. Bearing; 4. Slide rod; 5. First spring; 6. First screen plate; 7. Vibrating motor; 8. Second screen plate; 9. Third screen plate; 10. Telescopic rod; 11. Second spring; 12. Limiting rod; 13. Guide plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0021] Example 1:

[0022] Please see Figure 1-5This utility model provides a technical solution: a multi-stage screening device for building aggregates, including a main body 1, a first screen plate 6, a second screen plate 8, and a second spring 11. The main body 1 has a feed inlet 2 at its top, with the bottom of the feed inlet 2 welded to the top of the main body 1. Bearings 3 are embedded inside the bottom sides of the main body 1, and the bearings 3 are slidably connected to slide rods 4. Four slide rods 4 are provided, with one end of each slide rod welded to the side of the first screen plate 6. A first spring 5 is fitted onto the outside of each slide rod 4. A vibration motor 7 is bolted to one side of the first screen plate 6. A second screen plate 8 is positioned above the first screen plate 6, and a third screen plate 9 is positioned above the second screen plate 8. Telescopic rods 10 are provided on both sides of the second screen plate 8, with the second spring 11 fitted onto the outside of each telescopic rod 10. The entire device is controlled by an external control device. The two sides of the second screen plate 8 are rotatably connected to one end of the telescopic rod 10, and the other end of the telescopic rod 10 is... The first screen plate 6 and the third screen plate 9 are rotatably connected to each other. The first screen plate 6 is welded to the bottom end of the limiting rod 12 on both sides. The outer wall of the limiting rod 12 is slidably connected to the second screen plate 8 and the third screen plate 9 on both sides respectively. The limiting rod 12 is set vertically. When the device is in use, the first screen plate 6 is driven to shake horizontally by the vibration motor 7. Then the aggregate falls onto the third screen plate 9 through the feed port 2. Through the shaking of the third screen plate 9, the aggregate on the surface of the third screen plate 9 can be screened. Smaller aggregates will fall onto the surface of the second screen plate 8 and the first screen plate 6 in sequence through the screen holes, thereby achieving graded screening. When the aggregate falls onto the surface of the third screen plate 9 through the feed port 2, the third screen plate 9 will compress the second springs 11 on both sides after being impacted. The second springs 11 will then buffer the impact of the aggregate, thereby helping to reduce the damage to the screen plate when the aggregate falls.

[0023] Example 2:

[0024] The surfaces of the first screen plate 6, the second screen plate 8, and the third screen plate 9 are all provided with screen holes. The screen holes on the surface of the first screen plate 6 are smaller than those on the surface of the second screen plate 8, and the screen holes on the surface of the second screen plate 8 are smaller than those on the surface of the third screen plate 9. The first screen plate 6, the second screen plate 8, and the third screen plate 9 are arranged at an angle, and there are gaps between the two sides of the third screen plate 9 and the inner wall of the main body 1 of the device. The surfaces of the first screen plate 6, the second screen plate 8, and the third screen plate 9 are all provided with guide plates 13. Multiple guide plates 13 are provided, and the multiple guide plates 13 are distributed in a staggered manner. The guide plates 13 are inclined. By providing multiple guide plates 13 on the surfaces of the first screen plate 6, the second screen plate 8, and the third screen plate 9, the aggregate moving on the screen plate can move in a detour under the action of the guide plates 13 when it passes through the slope of the screen plate to the other end, thereby extending the stroke of the aggregate on each screen plate, which is conducive to the full screening of the aggregate.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-stage screening device for building aggregates, characterized in that: The device includes a main body (1), a first screen plate (6), a second screen plate (8), and a second spring (11). The top of the main body (1) is provided with a feed inlet (2), the bottom of which is welded to the top of the main body (1). Bearings (3) are embedded in the bottom two sides of the main body (1). The bearings (3) are slidably connected to slide rods (4). There are four slide rods (4). One end of each slide rod (4) is welded to the side of the first screen plate (6). A first spring (5) is fitted on the outside of each slide rod (4). A vibration motor (7) is bolted to one side of the first screen plate (6). A second screen plate (8) is provided above the first screen plate (6). A third screen plate (9) is provided above the second screen plate (8). Telescopic rods (10) are provided on both sides of the second screen plate (8). A second spring (11) is fitted on the outside of each telescopic rod (10).

2. The multi-stage screening equipment for building aggregates according to claim 1, characterized in that: The second sieve plate (8) is rotatably connected to one end of the telescopic rod (10) on both sides, and the other end of the telescopic rod (10) is rotatably connected to the first sieve plate (6) and the third sieve plate (9) on both sides respectively.

3. The multi-stage screening equipment for building aggregates according to claim 1, characterized in that: The first screen plate (6) is welded to the bottom end of the limiting rod (12) on both sides. The outer wall of the limiting rod (12) is slidably connected to the sides of the second screen plate (8) and the third screen plate (9) respectively. The limiting rod (12) is set vertically.

4. The multi-stage screening equipment for building aggregates according to claim 1, characterized in that: The first sieve plate (6), the second sieve plate (8), and the third sieve plate (9) are all provided with sieve holes. The sieve holes on the surface of the first sieve plate (6) are smaller than the sieve holes on the surface of the second sieve plate (8), and the sieve holes on the surface of the second sieve plate (8) are smaller than the sieve holes on the surface of the third sieve plate (9).

5. The multi-stage screening equipment for building aggregates according to claim 1, characterized in that: The first sieve plate (6), the second sieve plate (8), and the third sieve plate (9) are arranged at an inclination, and there are gaps between the two sides of the third sieve plate (9) and the inner wall of the main body (1) of the device.

6. The multi-stage screening equipment for building aggregates according to claim 1, characterized in that: The surfaces of the first sieve plate (6), the second sieve plate (8), and the third sieve plate (9) are all provided with guide plates (13). Multiple guide plates (13) are provided, and the multiple guide plates (13) are distributed in a staggered manner. The guide plate (13) is inclined.

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