Sand screening device for constructional engineering

Abstract

The utility model discloses a constructional engineering sand screening device which comprises an installation frame and two screening frames, a driving assembly is installed on the back of the installation frame, two rotating rods are rotatably installed in the installation frame, and rotating top plates are fixedly installed on the outer sides of the two rotating rods. In the process that a rotating top plate continuously passes through an arc-shaped convex block, a vibration frame can continuously move up and down in a reciprocating manner in a screening frame, so that the vibration frame continuously vibrates up and down in a reciprocating manner, a screening plate is driven to vibrate up and down in a reciprocating manner, and powerful power support is provided for efficient screening of sand; according to the sand screening device, the screening efficiency is improved, the screening quality is ensured, sand is fully dispersed under the action of vibration and makes full contact with screening holes, and therefore the screening precision and accuracy are improved, meanwhile, the sand can be effectively prevented from blocking the screening holes in the screening process through vibration, and the screening continuity and stability are ensured.

Description

Technical Field

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

[0002] The use of sand is indispensable in construction projects. Sand screening is a common process operation used to separate and screen impurities and sand of different particle sizes in the sand. Usually, the purpose of sand screening is to obtain sand particles that meet specific requirements, remove impurities, and improve the quality and applicability of sand. Sand screening makes sand more suitable for use in construction, concrete, road construction and other fields.

[0003] After searching, the patent announcement number CN222197290U discloses a sand screening device for construction projects, and its technical solution includes a main body, a base frame is fixedly connected to the bottom of the main body, a feeding port is opened on the top of the main body, a screening mechanism is installed inside the main body, a driving mechanism is installed inside the main body, a first discharge pipe is provided on one side of the outer wall of the main body, a sand and gravel channel is opened on the inner wall of the main body, a convergence port is fixedly connected to the inner wall of the main body, a crushing mechanism is installed inside the main body, and a second discharge pipe is opened at the bottom of the main body.

[0004] The sand screening device of the above scheme can screen the sand during processing and improve the overall quality by designing a simple screening mechanism, a driving mechanism and a crushing mechanism when in use. Other unqualified sand and gravel can be crushed through a channel and put back into the sand for use, thereby greatly improving the utilization efficiency of the sand. However, when the above scheme screens the sand, the screen only vibrates through the spring. When the screen holes are blocked and the sand on the top of the screen continues to increase, the spring will continue to be compressed downward under the action of the total gravity of the screen and the sand, causing the screen to be unable to shake, resulting in insufficient screening and low sand screening efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a construction engineering sand screening device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a construction engineering sand screening device, comprising an installation frame and two screening frames, a driving assembly is installed on the back of the installation frame, two rotating rods are rotatably installed inside the installation frame, and rotating top plates are fixedly installed on the outer sides of the two rotating rods, two picking and placing grooves are provided on one side of the installation frame, and arc grooves are provided at the bottom of the two picking and placing grooves, vibration frames are slidably installed inside the two screening frames, screening plates are fixedly installed at the bottom of the inner cavity of the vibration frames, screening holes are provided inside the screening plates, and arc-shaped protrusions are fixedly installed at the bottom of the screening plates.

[0007] Preferably, the specifications and dimensions of the inner contour of the picking and placing groove match the specifications and dimensions of the outer contour of the screening frame, placement plates are fixedly installed on both sides of the inner cavity of the installation frame, the position of the arc groove corresponds to the position of the arc protrusion, and handles are fixedly installed on the outside of the screening frame.

[0008] Preferably, the driving assembly includes a driving wheel and a driven wheel, a transmission belt is installed on the outer side of the driving wheel and the driven wheel, a driving motor is fixedly installed on one side of the transmission belt, a fixed bent rod is fixedly installed on the top of the driving motor, one end of the fixed bent rod away from the driving motor is fixedly connected to the back of the mounting frame, and one side of the driving wheel and the driven wheel is fixedly connected to one end of the two rotating rods respectively.

[0009] Preferably, two movable slides are fixedly installed on both sides of the vibration frame, and circular holes are provided inside the movable slides. Two movable slide grooves are provided on both sides of the inner cavity of the screening frame, and sliding columns are fixedly installed inside the movable slide grooves. The four movable slides are respectively slidably installed in the four movable slide grooves, and the movable slides are slidably installed on the outside of the slide rod through the circular holes. Springs are installed inside the movable slide grooves, and the springs are sleeved on the outside of the slide rod, and the tops of the springs are respectively fixedly connected to the top of the inner cavity of the movable slide groove and the top of the movable slide.

[0010] Preferably, a sand guide hopper frame is fixedly installed on the top of the vibration frame, the outer side of the top of the sand guide hopper frame contacts the inner wall of the screening frame, and a conical block is fixedly installed on the top of the screening plate, and the conical block is located on the top of the arc-shaped protrusion.

[0011] Preferably, support legs are fixedly mounted on both sides of the mounting frame.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the rotating top plate can continuously move up and down reciprocatingly inside the screening frame in the process of continuously passing through the arc-shaped protrusions, so that the vibration frame can continuously vibrate up and down reciprocatingly, thereby driving the screening plate to vibrate up and down reciprocatingly, providing strong power support for the efficient screening of sand, not only improving the screening efficiency, but also ensuring the screening quality. The sand is fully dispersed under the action of vibration and fully contacts with the screening holes, thereby improving the screening precision and accuracy. At the same time, the vibration can also effectively prevent the sand from clogging the screening holes during the screening process, thereby ensuring the adequacy of the screening and the screening efficiency.

[0013] Use the handle to pull the two screening frames out from the inside of the installation frame through the pick-up and release slots, and then turn the screening frames over to dump the sand remaining on the top of the screening plate. The sand remaining on the top of the screening plate can be easily dumped and cleaned to prevent the sand from clogging the screening holes, making the entire sand screening process efficient and convenient, greatly improving work efficiency and screening quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the utility model.

[0015] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model.

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the installation frame of the utility model.

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model without the screening frame.

[0018] Figure 5 It is a schematic diagram of the bottom structure of the screening frame and the vibration frame of the utility model.

[0019] Figure 6 It is a schematic diagram of the three-dimensional structure of the vibration frame of the utility model.

[0020] Figure 7 It is a schematic diagram of the three-dimensional structure of the screening frame of the utility model.

[0021] In the figure: 1. Installation frame; 2. Screening frame; 3. Vibration frame; 4. Sand guide bucket frame; 5. Conical block; 6. Screening plate; 7. Screening hole; 8. Handle; 9. Arc groove; 10. Support leg; 11. Driving motor; 12. Fixed curved rod; 13. Driving wheel; 14. Transmission belt; 15. Driven wheel; 16. Rotating rod; 17. Rotating top plate; 18. Placement plate; 19. Arc protrusion; 20. Pick-up and place groove; 21. Moving slide plate; 22. Circular hole; 23. Moving slide groove; 24. Spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 7The utility model provides a technical solution: a construction engineering sand screening device, comprising a mounting frame 1 and two screening frames 2, a driving assembly is installed on the back of the mounting frame 1, two rotating rods 16 are rotatably installed inside the mounting frame 1, and rotating top plates 17 are fixedly installed on the outer sides of the two rotating rods 16, one side of the mounting frame 1 is provided with two pick-up and release grooves 20, and the bottoms of the two pick-up and release grooves 20 are provided with arc grooves 9, the insides of the two screening frames 2 are slidably installed with vibration frames 3, the bottoms of the inner cavities of the vibration frames 3 are fixedly installed with screening plates 6, the interiors of the screening plates 6 are provided with screening holes 7, and the bottoms of the screening plates 6 are fixedly installed with arc-shaped protrusions 19, the specifications and dimensions of the inner contours of the pick-up and release grooves 20 are consistent with the specifications and dimensions of the outer contours of the screening frames 2, placement plates 18 are fixedly installed on both sides of the inner cavity of the mounting frame 1, the positions of the arc grooves 9 correspond to the positions of the arc protrusions 19, and handles 8 are fixedly installed on the outer sides of the screening frames 2, and the driving assembly comprises a driving wheel 13 and a driven wheel 15, the driving wheel 13 A transmission belt 14 is sleeved and installed on the outer side of the driven wheel 15, and a driving motor 11 is fixedly installed on one side of the transmission belt 14. A fixed bent rod 12 is fixedly installed on the top of the driving motor 11, and one end of the fixed bent rod 12 away from the driving motor 11 is fixedly connected to the back of the installation frame 1, and one side of the driving wheel 13 and the driven wheel 15 are respectively fixedly connected to one end of the two rotating rods 16. Two moving slides 21 are fixedly installed on both sides of the vibration frame 3, and circular holes 22 are provided inside the moving slides 21. Two moving slides 23 are provided on both sides of the inner cavity of the screening frame 2, and sliding columns are fixedly installed inside the moving slides 23. The four moving slides 21 are respectively slidably installed in the inside of the four moving slides 23, and the moving slides 21 are slidably installed on the outside of the slide rod through the circular hole 22. Springs 24 are installed inside the moving slides 23, and the springs 24 are sleeved on the outside of the slide rod, and the tops of the springs 24 are respectively fixedly connected to the top of the inner cavity of the moving slide 23 and the top of the moving slide 21.

[0024] The working principle of the above technical solution is as follows: first, a screening frame 2 with screening holes 7 of suitable apertures is selected according to the required sand size, and then the two selected screening frames 2 are respectively inserted into the interior of the installation frame 1 through the two pick-up and release grooves 20, and the two arc-shaped protrusions 19 are allowed to enter the interior of the installation frame 1 through the two arc-shaped grooves 9. At this time, the two arc-shaped grooves 9 are respectively located directly above the two rotating rods 16. When sand screening is required, firstly an external power supply is connected, and then the drive motor 11 is started. The output end of the drive motor 11 can drive the driving wheel 13 to rotate. When the driving wheel 13 rotates, the driven wheel 15 can be driven to rotate through the transmission belt 14. When the driving wheel 13 and the driven wheel 15 rotate, the two rotating rods 16 can be driven to rotate. The two rotating rods 16 The rotation can drive the two rotating top plates 17 to rotate. When the rotating top plate 17 rotates and passes through the arc-shaped protrusion 19, the arc-shaped protrusion 19 can be lifted up, thereby pushing the screening plate 6 to move upward, driving the vibration frame 3 to move upward inside the screening frame 2, so that the moving slides 21 on both sides of the vibration frame 3 move upward inside the moving slide grooves 23 on both sides of the screening frame 2, so that the moving slides 21 move upward on the outside of the slide rod through the circular hole 22 and squeeze the spring 24. When the rotating rotating top plate 17 is completely separated from the arc-shaped protrusion 19, under the action of the gravity of the vibration frame 3 and the screening plate 6 as well as the sand during the subsequent sand screening, the vibration frame 3 can be moved downward on the inner side of the screening frame 2, and the two sides of the vibration frame 3 can be moved upward. The movable slide plate 21 on the side moves downward inside the movable slide groove 23 inside the screening frame 2. During this process, the elastic force of the spring 24 when restoring its deformation will also push the movable slide plate 21 to move downward inside the movable slide groove 23. Therefore, the rotating rotating top plate 17 can make the vibration frame 3 continuously move up and down inside the screening frame 2 in the process of continuously passing through the arc-shaped protrusion 19, so that the vibration frame 3 continuously vibrates up and down, thereby driving the screening plate 6 to vibrate up and down, providing strong power support for the efficient screening of sand, not only improving the screening efficiency, but also ensuring the screening quality. The sand is fully dispersed under the action of vibration and fully contacts with the screening holes 7, thereby improving the screening precision and accuracy. At the same time, Vibration can also effectively prevent sand from clogging the screening holes 7 during the screening process, ensuring the continuity and stability of the screening. After that, the staff can use mechanical or manual methods to put the sand to be screened into the top of the installation frame 1, and the sand will fall to the top of the screening plate 6 located inside the top screening frame 2 under the action of its own gravity, and the sand will be screened through the screening holes 7. Sand smaller than the aperture of the screening holes 7 will fall through the screening holes 7 to the top of the screening plate 6 located inside the bottom screening frame 2, and the sand will be screened for the second time through the screening holes 7. The aperture of the screening holes 7 inside the bottom screening frame 2 is smaller than the aperture of the screening holes 7 inside the top screening frame 2, so as to improve the screening effect. Sand smaller than the aperture of the screening holes 7 will fall through the screening holes 7.And it is discharged through the bottom of the installation frame 1, which is convenient for subsequent use, while the sand larger than the aperture of the screening hole 7 will remain on the top of the screening plate 6. When it is necessary to clean the sand with a larger particle size, it is only necessary to pull the two screening frames 2 out of the inside of the installation frame 1 through the access slot 20 through the handle 8, and then turn the screening frame 2 over to dump the sand remaining on the top of the screening plate 6. The sand remaining on the top of the screening plate 6 can be easily dumped and cleaned to prevent the sand from clogging the screening hole 7, making the entire sand screening process efficient and convenient, greatly improving the work efficiency and screening quality.

[0025] In another embodiment, Figure 1-Figure 7 As shown, a sand guide hopper frame 4 is fixedly installed on the top of the vibration frame 3, and the outer side of the top of the sand guide hopper frame 4 contacts the inner wall of the screening frame 2. A conical block 5 is fixedly installed on the top of the screening plate 6, and the conical block 5 is located on the top of the arc-shaped protrusion 19.

[0026] The sand guide hopper frame 4 is provided to guide the sand so that it falls on the top of the screening plate 6 inside the screening frame 2 on the one hand, and to block the gap between the screening frame 2 and the vibration frame 3 on the other hand, while the sand falling on the top middle part of the screening plate 6 can be guided by the conical block 5.

[0027] In another embodiment, Figure 1-Figure 7 As shown, support legs 10 are fixedly mounted on both sides of the installation frame 1 .

[0028] The two supporting legs 10 can support the entire device to ensure the normal sand screening.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand screening device for construction engineering, comprising a mounting frame (1) and two screening frames (2), characterized in that: A driving assembly is installed on the back of the installation frame (1), two rotating rods (16) are rotatably installed inside the installation frame (1), and a rotating top plate (17) is fixedly installed on the outer sides of the two rotating rods (16). Two picking and placing grooves (20) are provided on one side of the installation frame (1), and arc grooves (9) are provided at the bottom of the two picking and placing grooves (20). Vibration frames (3) are slidably installed inside the two screening frames (2), and screening plates (6) are fixedly installed at the bottom of the inner cavities of the vibration frames (3). Screening holes (7) are provided inside the screening plates (6), and arc-shaped protrusions (19) are fixedly installed at the bottom of the screening plates (6).

2. A construction engineering sand screening device according to claim 1, characterized in that: The specification dimensions of the inner contour of the taking and placing groove (20) match the specification dimensions of the outer contour of the screening frame (2), a placement plate (18) is fixedly installed on both sides of the inner cavity of the installation frame (1), the position of the arc groove (9) corresponds to the position of the arc protrusion (19), and a handle (8) is fixedly installed on the outer side of the screening frame (2).

3. A construction engineering sand screening device according to claim 2, characterized in that: The driving assembly comprises a driving wheel (13) and a driven wheel (15); a transmission belt (14) is sleeved and installed on the outer sides of the driving wheel (13) and the driven wheel (15); a driving motor (11) is fixedly installed on one side of the transmission belt (14); a fixed bent rod (12) is fixedly installed on the top of the driving motor (11); an end of the fixed bent rod (12) away from the driving motor (11) is fixedly connected to the back of the installation frame (1); and one side of the driving wheel (13) and the driven wheel (15) is fixedly connected to one end of two rotating rods (16) respectively.

4. A construction engineering sand screening device according to claim 3, characterized in that: Two movable slides (21) are fixedly mounted on both sides of the vibration frame (3), and circular holes (22) are provided inside the movable slides (21). Two movable slide grooves (23) are provided on both sides of the inner cavity of the screening frame (2), and slide columns are fixedly mounted inside the movable slide grooves (23). The four movable slides (21) are slidably mounted inside the four movable slide grooves (23), and the movable slides (21) are slidably mounted on the outside of the slide rod through the circular holes (22). Springs (24) are installed inside the movable slide grooves (23), and the springs (24) are sleeved on the outside of the slide rod. The top of the spring (24) is fixedly connected to the top of the inner cavity of the movable slide groove (23) and the top of the movable slide (21), respectively.

5. A construction engineering sand screening device according to claim 4, characterized in that: A sand guide hopper frame (4) is fixedly mounted on the top of the vibration frame (3), the outer side of the top of the sand guide hopper frame (4) is in contact with the inner wall of the screening frame (2), and a conical block (5) is fixedly mounted on the top of the screening plate (6), and the conical block (5) is located on the top of the arc-shaped protrusion (19).

6. A construction engineering sand screening device according to claim 5, characterized in that: Support legs (10) are fixedly mounted on both sides of the installation frame (1).

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