Sand and stone screening machine for building construction

Abstract

The utility model relates to a kind of sandstone screening machines for building construction, including screening square frame, the inner wall of screening square frame is fixedly connected with partition plate, the inner side wall of screening square frame is fixedly connected with two groups of guide slide rail, the inside of each guide slide rail is slidably connected with sliding block, the outer surface of multiple sliding blocks is fixedly connected with screening net in common, the bottom surface of screening net is fixedly connected with multiple extension springs, the bottom end of each extension spring is fixedly connected with the inner bottom wall of screening square frame, by using electric push rod to promote square cover, make it move above screening net, simultaneously drive motor is driven rotating rod and clean net brush rotation by transmission belt, sandstone on screening net can be cleaned in time, so that clean net brush can accurately clean work above screening net, prevent screen jam, ensure the continuous screening, facilitate the cleaning of material on screening net, effectively guarantee the normal use of screening.

Description

Technical Field

[0001] This utility model relates to the field of building construction, specifically to a sand and gravel screening machine for building construction. Background Technology

[0002] Construction is a technically complex production process that requires construction workers to apply theories of materials, mechanics, structure, and technology to solve the technical problems that constantly arise during construction, ensuring project quality and construction safety. This construction process involves multiple trades operating within a limited time and space. Hundreds or even thousands of materials need to be screened before use. Sand and gravel are indispensable materials in construction, and different specifications of sand and gravel often have different uses, thus requiring screening. Currently, existing sand and gravel screening machines have some shortcomings, such as low screening efficiency, unsatisfactory screening effect, and the problem of sand and gravel accumulating on the screen and being difficult to separate, which can easily cause clogging of the device, making it difficult to clean and affecting screening efficiency. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a sand and gravel screening machine for construction.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a sand and gravel screening machine for construction includes a screening frame, a partition plate fixedly connected to the inner wall of the screening frame, two sets of guide rails fixedly connected to the inner side wall of the screening frame, a sliding block slidably connected inside each guide rail, a screening screen fixedly connected to the outer surface of multiple sliding blocks, multiple telescopic springs fixedly connected to the bottom surface of the screening screen, the bottom end of each telescopic spring being fixedly connected to the inner bottom wall of the screening frame, a rotary motor fixedly connected to the inner bottom wall of the screening frame, a circular shaft fixedly connected to the output end of the rotary motor, a transmission cam fixedly connected to one end of the circular shaft, and the outer surface of the transmission cam contacting the bottom surface of the screening screen.

[0005] An electric push rod is fixedly connected to the upper surface of the partition plate. A square plate is fixedly connected to the output end of the electric push rod. A square cover is fixedly connected to the outer surface of the square plate. A rotating rod is rotatably connected to the inner wall of the square cover via a bearing. Cleaning brushes arranged at equal intervals are fixedly connected to the outer surface of the rotating rod. A driven wheel is fixedly connected to the outer surface of the rotating rod. A drive motor is fixedly connected to the upper surface of the square cover. A driving wheel is fixedly connected to the output end of the drive motor, and the driving wheel is connected to the driven wheel via a transmission belt.

[0006] The construction sand and gravel screening machine of this utility model is further configured such that: the bottom surface of the screening frame is provided with a feeding port, two feeding plates are fixedly connected to the bottom surface of the screening frame, and two guide plates are fixedly connected to the upper surface of the screening frame.

[0007] The construction sand and gravel screening machine of this utility model is further configured such that: multiple supporting legs are provided below the screening frame, the top of each supporting leg is fixedly connected to the bottom surface of the screening frame, and an anti-slip pad is provided at the bottom of the supporting leg.

[0008] The sand and gravel screening machine for construction in this utility model is further configured such that: a controller is fixedly installed on the front of the screening frame, and the controller is electrically connected to a rotary motor and an electric push rod through a wire.

[0009] The construction sand and gravel screening machine of this utility model is further configured as follows: a support frame is fixedly connected to the upper surface of the screening frame, a sliding cylinder is fixedly connected to the inner wall of the support frame, a square sliding plate is slidably connected to the outer surface of the sliding cylinder, a long support rod is fixedly connected to the outer surface of the square sliding plate, and one end of the long support rod is fixedly connected to the outer surface of the square cover.

[0010] The construction sand and gravel screening machine of this utility model is further configured such that: the square cover and the cleaning brush are both located above the screening screen, and two mounting brackets are fixedly connected to the inner bottom wall of the screening frame, and the outer surface of each mounting bracket is fixedly connected to the outer surface of the rotary motor.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The above-mentioned sand and gravel screening machine for construction uses a screening screen connected to a guide rail via a sliding block, and vibrates and screens under the action of a transmission cam driven by a telescopic spring and a rotary motor. This vibration method enables the sand and gravel to be quickly dispersed on the screening screen, improving screening efficiency. The cleaning brush and square cover can be used to push the square cover with an electric push rod to move it above the screening screen. At the same time, the drive motor drives the rotating rod and the cleaning brush to rotate through the transmission belt, which can clean the sand and gravel on the screening screen in a timely manner. This allows the cleaning brush to accurately clean the screen, prevent screen blockage, ensure continuous screening, facilitate the cleaning of materials on the screening screen, and effectively ensure the normal use of the screening machine. Attached Figure Description

[0012] Figure 1 This is a frontal three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a side view of the present invention.

[0014] Figure 3This is a schematic diagram of the internal structure of the square cover of this utility model.

[0015] Figure 4 This is a schematic diagram of the orthographic structure of this utility model.

[0016] Figure 5 This is a top view of the present invention.

[0017] In the diagram: 1. Screening frame; 2. Supporting leg; 3. Controller; 4. Guide plate; 5. Feeding plate; 6. Feeding port; 7. Partition plate; 8. Electric push rod; 9. Square plate; 10. Rotating rod; 11. Cleaning brush; 12. Driven wheel; 13. Drive motor; 14. Driving wheel; 15. Square cover; 16. Guide rail; 17. Sliding block; 18. Screening screen; 19. Telescopic spring; 20. Rotary motor; 21. Circular shaft; 22. Transmission cam; 23. Support frame; 24. Sliding cylinder; 25. Square sliding plate; 26. Long support rod; 27. Mounting frame. Detailed Implementation

[0018] The following detailed description of the sand and gravel screening machine for construction according to this utility model is provided through specific embodiments.

[0019] like Figure 1-5 As shown, a sand and gravel screening machine for construction includes a screening frame 1. A partition plate 7 is fixedly connected to the inner wall of the screening frame 1. Two sets of guide rails 16 are fixedly connected to the inner side wall of the screening frame 1. A sliding block 17 is slidably connected inside each guide rail 16. A screening screen 18 is fixedly connected to the outer surface of the multiple sliding blocks 17. Multiple telescopic springs 19 are fixedly connected to the bottom surface of the screening screen 18. The bottom end of each telescopic spring 19 is fixedly connected to the inner bottom wall of the screening frame 1. A rotary motor 20 is fixedly connected to the wall. A circular shaft 21 is fixedly connected to the output end of the rotary motor 20. A transmission cam 22 is fixedly connected to one end of the circular shaft 21. The outer surface of the transmission cam 22 is in contact with the bottom surface of the screening screen 18. The screening screen 18 is connected to the guide rail 16 through the sliding block 17. Under the action of the telescopic spring 19 and the transmission cam 22 driven by the rotary motor 20, the screen is vibrated and screened. This vibration mode can make the sand and gravel disperse quickly on the screening screen 18 and improve the screening efficiency.

[0020] An electric push rod 8 is fixedly connected to the upper surface of the partition plate 7. A square plate 9 is fixedly connected to the output end of the electric push rod 8. A square cover 15 is fixedly connected to the outer surface of the square plate 9. A rotating rod 10 is rotatably connected to the inner wall of the square cover 15 via a bearing. Cleaning brushes 11 arranged at equal intervals are fixedly connected to the outer surface of the rotating rod 10. A driven wheel 12 is fixedly connected to the outer surface of the rotating rod 10. A drive motor 13 is fixedly connected to the upper surface of the square cover 15. A drive wheel 14 is fixedly connected to the output end of the drive motor 13. The drive wheel 14 is connected to the driven wheel 12 via a transmission belt. The electric push rod 8 can push the square cover 15 to move it above the screening screen 18. At the same time, the drive motor 13 drives the rotating rod 10 and the cleaning brushes 11 to rotate via the transmission belt. This can clean the sand and gravel on the screening screen 18 in a timely manner, so that the cleaning brushes 11 can accurately clean the screen above the screening screen 18, prevent the screen from clogging, ensure the continuous screening, and facilitate the cleaning of materials on the screening screen 18.

[0021] The bottom surface of the screening frame 1 is provided with a discharge port 6. Two discharge plates 5 are fixedly connected to the bottom surface of the screening frame 1. Two guide plates 4 are fixedly connected to the upper surface of the screening frame 1 to facilitate the smooth discharge of the screened sand and gravel. The guide plates 4 help to guide the sand and gravel to be screened into the screening frame 1, making the feeding and discharging process smoother. Multiple support legs 2 are provided at the bottom of the screening frame 1. The top of each support leg 2 is fixedly connected to the bottom surface of the screening frame 1, and the bottom end of the support leg 2 is provided with an anti-slip pad to provide stable support for the screening machine. The anti-slip pad further enhances the stability of the equipment during operation. A controller 3 is fixedly installed on the front of the screening frame 1. The controller 3 is electrically connected to the rotary motor 20 and the electric push rod 8 through wires to facilitate the operation of the equipment by the user.

[0022] A support frame 23 is fixedly connected to the upper surface of the screening frame 1. A sliding cylinder 24 is fixedly connected to the inner wall of the support frame 23. A square slide plate 25 is slidably connected to the outer surface of the sliding cylinder 24. A long support rod 26 is fixedly connected to the outer surface of the square slide plate 25. One end of the long support rod 26 is fixedly connected to the outer surface of the square cover 15, providing a stable guide for the movement of the square cover 15 and ensuring that the cleaning brush 11 can accurately clean the screen 18. The square cover 15 and the cleaning brush 11 are both located above the screen 18. Two mounting brackets 27 are fixedly connected to the inner bottom wall of the screening frame 1. The outer surface of each mounting bracket 27 is fixedly connected to the outer surface of the rotary motor 20, which can make the operation of the rotary motor 20 more stable.

[0023] The working principle of this utility model is as follows: When the device is placed in the usage position and connected to the relevant power supply, the rotary motor 20 can be started to rotate the circular shaft 21 and the transmission cam 22. The rotation of the transmission cam 22 causes the screening screen 18 to slide in the guide rail 16 through the sliding block 17 and vibrate under the action of the telescopic spring 19. The vibration of the screening screen 18 is used to screen the sand and gravel added through the guide inclined plate 4. When it is necessary to clean the screening screen 18, the rotary motor 20 is stopped and the drive motor 13 is started to rotate the drive wheel 14. The drive wheel 12 and the rotating rod 10 are rotated through the transmission belt. At the same time, the cleaning brush 11 will start to rotate. Then, the electric push rod 8 is started to move the square plate 9 and the square cover 15, thereby pushing the rotating cleaning brush 11 to clean the surface of the screening screen 18. It can accurately clean the screen 18 and effectively avoid clogging during screening.

[0024] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some examples of its application, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements are all within the protection scope of the present invention.

Claims

1. A sand and gravel screening machine for construction, comprising a screening frame (1), characterized in that: The inner wall of the screening frame (1) is fixedly connected to a partition plate (7), and the inner side wall of the screening frame (1) is fixedly connected to two sets of guide slide rails (16). Each guide slide rail (16) is slidably connected to a sliding block (17). The outer surfaces of multiple sliding blocks (17) are fixedly connected to a screening screen (18). The bottom surface of the screening screen (18) is fixedly connected to multiple telescopic springs (19). The bottom end of each telescopic spring (19) is fixedly connected to the inner bottom wall of the screening frame (1). The inner bottom wall of the screening frame (1) is fixedly connected to a rotary motor (20). The output end of the rotary motor (20) is fixedly connected to a circular shaft (21). One end of the circular shaft (21) is fixedly connected to a transmission cam (22), and the outer surface of the transmission cam (22) is in contact with the bottom surface of the screening screen (18). An electric push rod (8) is fixedly connected to the upper surface of the partition plate (7). A square plate (9) is fixedly connected to the output end of the electric push rod (8). A square cover (15) is fixedly connected to the outer surface of the square plate (9). A rotating rod (10) is rotatably connected to the inner wall of the square cover (15) through a bearing. A cleaning brush (11) with equal spacing is fixedly connected to the outer surface of the rotating rod (10). A driven wheel (12) is fixedly connected to the outer surface of the rotating rod (10). A drive motor (13) is fixedly connected to the upper surface of the square cover (15). A drive wheel (14) is fixedly connected to the output end of the drive motor (13). The drive wheel (14) is connected to the driven wheel (12) through a transmission belt.

2. The sand and gravel screening machine for construction as described in claim 1, characterized in that: The bottom surface of the screening frame (1) is provided with a feeding port (6), and two feeding plates (5) are fixedly connected to the bottom surface of the screening frame (1). Two guide plates (4) are fixedly connected to the upper surface of the screening frame (1).

3. The sand and gravel screening machine for construction as described in claim 1, characterized in that: The screening frame (1) is provided with multiple supporting legs (2) below it. The top of each supporting leg (2) is fixedly connected to the bottom surface of the screening frame (1), and the bottom of the supporting leg (2) is provided with an anti-slip pad.

4. The sand and gravel screening machine for construction as described in claim 1, characterized in that: A controller (3) is fixedly installed on the front of the screening frame (1). The controller (3) is electrically connected to the rotary motor (20) and the electric push rod (8) through wires.

5. A sand and gravel screening machine for construction as described in claim 1, characterized in that: A support frame (23) is fixedly connected to the upper surface of the screening frame (1). A sliding cylinder (24) is fixedly connected to the inner wall of the support frame (23). A square slide plate (25) is slidably connected to the outer surface of the sliding cylinder (24). A long support rod (26) is fixedly connected to the outer surface of the square slide plate (25). One end of the long support rod (26) is fixedly connected to the outer surface of the square cover (15).

6. The sand and gravel screening machine for construction as described in claim 1, characterized in that: The square cover (15) and the cleaning brush (11) are both located above the screening screen (18). The inner bottom wall of the screening frame (1) is fixedly connected to two mounting brackets (27), and the outer surface of each mounting bracket (27) is fixedly connected to the outer surface of the rotary motor (20).

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