Aggregate screening mechanism

Abstract

The utility model relates to the technical field of aggregate screening, and discloses an aggregate screening mechanism which comprises a screening box body, a feeding pipeline is arranged in the middle of the upper surface of the screening box body, the lower end of the feeding pipeline penetrates into the interior of the screening box body to be communicated with the interior of the screening box body, and a spraying pipe is arranged on the upper surface of the screening box body. A water pump is arranged at the upper end of the surface of the left side of the screening box body, U-shaped grooves are formed in the positions, corresponding to the upper end and the lower end of a rectangular hole, of the inner wall of the screening box body, annular frames are arranged in the two U-shaped grooves, screening nets are fixedly installed in the two annular frames, and clamping devices are arranged in rectangular installation grooves. And when water is used for cleaning too many times and mud blocks appear on the screening net, the annular frame can be more conveniently and rapidly disassembled and installed through the clamping device, so that the screening net fixedly installed on the annular frame is cleaned, workers can conveniently clean the mechanism, and the working efficiency of the mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aggregate screening, in particular to a screening mechanism for aggregates. Background Art

[0002] The water-stabilizing layer is the abbreviation of cement-stabilized gravel layer, which means that the graded gravel is consolidated with cement. The water-stabilizing layer has high strength, rigidity and stability. It is the main load-bearing layer of the entire road structure. Cement-stabilized gravel can be paved with recycled materials as graded gravel, but the maximum particle size laid in different layers of the water-stabilizing layer is different, so it needs to be screened.

[0003] After the screen on the aggregate screening mechanism has been used for a long time, the screen is prone to be blocked by gravel, which affects the efficiency of the screening mechanism. Most of them are cleaned with water. When the aggregate enters the screening mechanism, the surface will inevitably be contaminated with dust. When passing through the screen, it will stick to the screen. After being cleaned with water for a long time, it is very likely to form mud blocks that block the sieve holes of the screen. The water flow should not flush it down, thereby causing blockage. Moreover, since most of the screens are fixed on them with bolts, it is not easy to disassemble them for cleaning, which wastes time and reduces work efficiency. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a screening mechanism for aggregates, which has the advantages that when water is used for cleaning too many times and mud blocks appear on the screening net, the annular frame can be more conveniently and quickly disassembled and installed through a clamping device, so that the screening net fixed thereon can be cleaned, which is convenient for workers to clean the mechanism, and solves the problem that after long-term cleaning with water, mud blocks are likely to form on the sieve holes of the sieve, and the water flow should not flush them down, thereby causing blockage, and since most of the sieves are fixed thereon with bolts, they are not easy to disassemble for cleaning, which wastes time and reduces work efficiency.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aggregate screening mechanism, comprising a screening box, a feeding pipe is arranged at the middle position of the upper surface of the screening box, and the lower end of the feeding pipe penetrates into the interior of the screening box and communicates with the interior thereof; a spray pipe is arranged on the upper surface of the screening box, and the lower end of the spray pipe penetrates into the interior of the screening box and communicates with the interior thereof; a water pump is arranged on the upper end of the left surface of the screening box, and the water pump and the spray pipe are connected through a water pipe;

[0008] A rectangular hole is provided on the front surface of the screening box, and a movable door is provided inside the rectangular hole. U-shaped grooves are provided on the inner wall of the screening box at positions corresponding to the upper and lower ends of the rectangular hole, and the rear sides of the two U-shaped grooves extend to the rear inner wall of the screening box. An annular frame matching the two U-shaped grooves is provided inside the two U-shaped grooves, and a screening net is fixedly installed in the two annular frames.

[0009] A sliding groove is provided at the front middle position of the right side surface of the screening box, a rectangular mounting groove is provided on the left inner wall of the sliding groove, and sliding holes are provided at the upper and lower ends of the left inner wall of the rectangular mounting groove corresponding to the U-shaped groove;

[0010] A snap-fitting groove is provided on the annular frame at a position corresponding to the sliding hole, and a snap-fitting device is provided inside the rectangular installation groove. The snap-fitting device is used to remove or fix the two annular frames.

[0011] Preferably, the clamping device includes a handle, which is slidably connected to the inside of the sliding groove and to the inner wall thereof, and one end of the handle slidably extends to the inside of the rectangular installation groove;

[0012] Among them, one end of the handle located inside the rectangular installation groove is fixedly connected with a rectangular plate, and the rectangular plate is slidably connected to the inner wall of the rectangular installation groove.

[0013] Preferably, springs are fixedly installed at both upper and lower ends of the right inner wall of the rectangular installation groove, and the other ends of the two springs are fixedly connected to L-shaped clamping joints, and the two L-shaped clamping joints are arranged in a mirror image, and the vertical plates of the two L-shaped clamping joints are movably connected to the upper and lower ends of the rectangular plate respectively;

[0014] The transverse plates of the two L-shaped clamping joints are both slidably connected to the inside of the sliding hole, and extend to the inside of the clamping groove, and are slidably plugged with the inside of the clamping groove.

[0015] Preferably, mounting grooves are provided on the inner walls of the lower ends of the left and right sides of the two U-shaped grooves, and pneumatic vibrators are fixedly installed inside the four mounting grooves.

[0016] Preferably, a rectangular discharge pipe is provided at the upper end of the rear surface of the screening box body corresponding to the position of the two annular frames, and the two rectangular discharge pipes penetrate into the interior of the screening box body and communicate with the interior thereof;

[0017] Among them, a circular discharge pipe is fixedly installed on the lower end surface of the screening box, and the upper end of the circular discharge pipe penetrates into the interior of the screening box and communicates with the interior thereof.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model provides a screening mechanism for aggregates, which has the following beneficial effects:

[0020] 1. The aggregate screening mechanism, through the setting of the clamping device, when water is used for cleaning too many times and mud appears on the screening net, the annular frame can be more conveniently and quickly disassembled and installed through the clamping device, so as to clean the screening net fixed thereon, thereby reducing the labor intensity of workers, facilitating workers to clean the mechanism, and thus improving the working efficiency of the mechanism.

[0021] 2. The aggregate screening mechanism can clean the inside of the screening box more conveniently and quickly through the arrangement of a water pump and a spray pipe, thereby improving the work efficiency of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the top view of the structure of a screening mechanism for aggregates of the utility model;

[0023] Figure 2 This is a schematic diagram of a side cutaway structure of an aggregate screening mechanism of the utility model;

[0024] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0025] Figure 4 This is a schematic diagram of a top view of a sieving mechanism for aggregates in the utility model.

[0026] Figure 5 It is a side sectional schematic diagram of the pneumatic vibrator of the utility model.

[0027] In the figure: 1. screening box; 2. feeding pipe; 3. spraying pipe; 4. water pump; 5. water pipe; 6. rectangular hole; 7. movable door; 8. U-shaped groove; 9. ring frame; 10. mounting groove; 11. pneumatic vibrator; 12. rectangular discharge pipe; 13. sliding groove; 14. rectangular mounting groove; 15. sliding hole; 16. snap-on groove; 17. handle; 18. rectangular plate; 19. spring; 20. L-shaped snap-on joint; 21. circular discharge pipe; 22. screening net. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5The utility model provides a new technical solution: a screening mechanism for aggregates, comprising a screening box 1, a feeding pipe 2 is arranged at the middle position of the upper surface of the screening box 1, and the lower end of the feeding pipe 2 penetrates into the interior of the screening box 1 and communicates with the interior thereof, a spraying pipe 3 is arranged on the upper surface of the screening box 1, and the lower end of the spraying pipe 3 penetrates into the interior of the screening box 1 and communicates with the interior thereof, a water pump 4 is arranged at the upper end of the left surface of the screening box 1, and the water pump 4 and the spraying pipe 3 are connected through a water pipe 5, and the water pump 4 and the spraying pipe 3 are both prior art, and are not described in detail here;

[0030] A rectangular hole 6 is provided on the front surface of the screening box 1, and a movable door 7 is provided inside the rectangular hole 6. U-shaped grooves 8 are provided on the inner wall of the screening box 1 at the upper and lower ends of the rectangular hole 6, and the rear sides of the two U-shaped grooves 8 extend to the rear inner wall of the screening box 1. The insides of the two U-shaped grooves 8 are provided with an annular frame 9 adapted thereto, and a screening net 22 is fixedly installed in the two annular frames 9, and the mesh size of the upper screening net 22 is larger than the mesh size of the lower screening net 22;

[0031] A sliding groove 13 is provided at the front middle position of the right side surface of the screening box 1, a rectangular mounting groove 14 is provided on the left inner wall of the sliding groove 13, and sliding holes 15 are provided at the upper and lower ends of the left inner wall of the rectangular mounting groove 14 corresponding to the positions of the U-shaped groove 8;

[0032] A snap-fit ​​groove 16 is provided on the annular frame 9 at a position corresponding to the sliding hole 15 , and a snap-fit ​​device is provided inside the rectangular installation groove 14 , and the snap-fit ​​device is used to remove or fix the two annular frames 9 .

[0033] Furthermore, when using the present mechanism, the recycled aggregate to be screened is added into the interior of the screening box 1 through the feed pipe 2, and then the four pneumatic vibrators 11 are started. The pneumatic vibrators 11 are prior art and will not be described in detail here. After the recycled aggregate is screened out by the larger screening net 22 above, the recycled aggregate larger than the mesh size of the upper screening net 22 is vibrated by the two pneumatic vibrators 11 above and goes out from the upper rectangular discharge pipe 12, while the recycled aggregate smaller than the mesh size of the upper screening net 22 passes through the upper screening net 22 and falls onto the lower screening net 22, and the lower screening net 22 screens the recycled aggregate again. Screening is performed once, and the recycled aggregates with a mesh size larger than that of the lower screening net 22 are vibrated by the two pneumatic vibrators 11 below and go out from the rectangular discharge pipe 12 below, while the recycled aggregates with a mesh size smaller than that of the lower screening net 22 pass through the lower screening net 22 and fall into the circular discharge pipe 21 below and go out. After use, the water pump 4 is started, and water enters the spray pipe 3 through the water pipe 5 to clean the interior of the screening box 1 and the two screening nets 22. Through the arrangement of the water pump and the spray pipe, the interior of the screening box 1 can be cleaned more conveniently and quickly, thereby improving the work efficiency of the workers.

[0034] Furthermore, the clamping device includes a handle 17, which is slidably connected to the inside of the sliding groove 13 and to the inner wall thereof, and one end of the handle 17 slidably extends to the inside of the rectangular installation groove 14;

[0035] One end of the handle 17 located inside the rectangular installation groove 14 is fixedly connected to a rectangular plate 18 , and the rectangular plate 18 is slidably connected to the inner wall of the rectangular installation groove 14 .

[0036] Furthermore, springs 19 are fixedly installed at both upper and lower ends of the right inner wall of the rectangular mounting groove 14, and the other ends of the two springs 19 are fixedly connected with L-shaped clamping joints 20, and the two L-shaped clamping joints 20 are arranged in a mirror image, and the vertical plates of the two L-shaped clamping joints 20 are movably connected to the upper and lower ends of the rectangular plate 18 respectively;

[0037] The transverse plates of the two L-shaped clamping joints 20 are both slidably connected to the inside of the sliding hole 15 , and extend to the inside of the clamping groove 16 , and are slidably plugged with the inside of the clamping groove 16 .

[0038] Furthermore, mounting grooves 10 are provided on the inner walls of the lower ends of the left and right sides of the two U-shaped grooves 8 , and pneumatic vibrators 11 are fixedly installed inside the four mounting grooves 10 .

[0039] Furthermore, a rectangular discharge pipe 12 is provided at the upper end of the rear surface of the screening box 1 corresponding to the position of the two annular frames 9, and the two rectangular discharge pipes 12 penetrate into the interior of the screening box 1 and communicate with the interior thereof;

[0040] A circular discharge pipe 21 is fixedly mounted on the lower end surface of the screening box 1 , and the upper end of the circular discharge pipe 21 penetrates into the interior of the screening box 1 and communicates with the interior thereof.

[0041] Furthermore, when the cleaning times are too many and mud lumps are formed on the screening net 22, it is not easy for the water flow to wash it down. At this time, the movable door 7 is opened, and then the handle 17 is pulled to the right. The handle 17 drives the rectangular plate 18 to move outward, and the rectangular plate 18 drives the two L-shaped card joints 20 movably connected thereto to move to the right, squeezing the two springs 19. The two springs 19 are compressed, and the two L-shaped card joints 20 respectively leave the inside of the two card grooves 16 on the two annular frames 9 and enter the inside of the two sliding holes 15. At this time, the two annular frames 9 can be pulled out from the inside of the two U-shaped grooves 8, the handle 17 is released, and then the screening net 22 fixed therein is cleaned. After cleaning, the handle 17 is pulled to the right again to make the two The L-shaped clamping joints 20 enter the interior of the two sliding holes 15 respectively, and then the two annular frames 9 are pushed into the interior of the two U-shaped grooves 8. When the two clamping grooves 16 on the two annular frames 9 move to the position of the sliding holes 15, the handle 17 is released, and the two L-shaped clamping joints 20 enter the interior of the two clamping grooves 16 to fix the two annular frames 9, thereby fixing the two screening nets 22. Through the setting of the clamping device, when water is used for cleaning too many times and mud appears on the screening net 22, the annular frame 9 can be more conveniently and quickly disassembled and installed through the clamping device, so as to clean the screening net 22 fixed thereon, thereby reducing the labor intensity of workers and facilitating workers to clean the mechanism, thereby improving the working efficiency of the mechanism.

[0042] Working principle: When using this mechanism, the recycled aggregate to be screened is added into the screening box 1 through the feed pipe 2, and then the four pneumatic vibrators 11 are started. After the recycled aggregate is screened by the larger screening net 22 above, the recycled aggregate larger than the mesh size of the upper screening net 22 is vibrated by the two pneumatic vibrators 11 above and goes out from the upper rectangular discharge pipe 12, while the recycled aggregate smaller than the mesh size of the upper screening net 22 passes through the upper screening net 22 and falls onto the lower screening net 22. The lower screening net 22 screens the recycled aggregate again, and the recycled aggregate larger than the mesh size of the lower screening net 22 is removed by the two pneumatic vibrators 11 below. Under the vibration of the vibrator 11, the recycled aggregates are discharged from the rectangular discharge pipe 12 below, while the recycled aggregates smaller than the mesh size of the lower screening net 22 pass through the lower screening net 22 and fall into the circular discharge pipe 21 below. After use, the water pump 4 is started, and the water enters the spray pipe 3 through the water pipe 5 to clean the inside of the screening box 1 and the two screening nets 22. Through the setting of the water pump and the spray pipe, the inside of the screening box 1 can be cleaned more conveniently and quickly, thereby improving the work efficiency of the workers. When the cleaning times are too many, mud blocks are formed on the screening net 22, and it is not easy for the water flow to wash it down. At this time, the movable door 7 is opened, and then the right Pull the handle 17, the handle 17 drives the rectangular plate 18 to move outward, and the rectangular plate 18 drives the two L-shaped card joints 20 movably connected thereto to move to the right, squeezing the two springs 19, compressing the two springs 19, and the two L-shaped card joints 20 respectively leave the inside of the two card grooves 16 on the two annular frames 9 and enter the inside of the two sliding holes 15. At this time, the two annular frames 9 can be pulled out from the inside of the two U-shaped grooves 8, the handle 17 is released, and then the sieve net 22 fixed therein is cleaned. After cleaning, the handle 17 is pulled to the right again, so that the two L-shaped card joints 20 respectively enter the inside of the two sliding holes 15, and then The two annular frames 9 are pushed into the interior of the two U-shaped grooves 8. When the two clamping grooves 16 on the two annular frames 9 move to the position of the sliding hole 15, the handle 17 is released, and the two L-shaped clamping joints 20 enter the interior of the two clamping grooves 16 to fix the two annular frames 9, thereby fixing the two screening nets 22. Through the setting of the clamping device, when water is used for cleaning too many times and mud appears on the screening net 22, the annular frame 9 can be more conveniently and quickly disassembled and installed through the clamping device, so as to clean the screening net 22 fixed thereon, thereby reducing the labor intensity of the workers, facilitating the workers to clean the mechanism, and thus improving the working efficiency of the mechanism.

[0043] 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 screening mechanism for aggregates, comprising a screening box (1), wherein a feed pipe (2) is arranged at a middle position on the upper surface of the screening box (1), and the lower end of the feed pipe (2) penetrates into the interior of the screening box (1) and communicates with the interior thereof, a spray pipe (3) is arranged on the upper surface of the screening box (1), and the lower end of the spray pipe (3) penetrates into the interior of the screening box (1) and communicates with the interior thereof, a water pump (4) is arranged on the upper end of the left surface of the screening box (1), and the water pump (4) and the spray pipe (3) are connected via a water pipe (5); Features: The front surface of the screening box (1) is provided with a rectangular hole (6), and a movable door (7) is arranged inside the rectangular hole (6); the inner wall of the screening box (1) is provided with U-shaped grooves (8) at positions corresponding to the upper and lower ends of the rectangular hole (6), and the rear sides of the two U-shaped grooves (8) extend to the rear inner wall of the screening box (1); the inside of the two U-shaped grooves (8) are provided with annular frames (9) adapted thereto, and screening nets (22) are fixedly installed in the two annular frames (9); A sliding groove (13) is provided at the front middle position of the right side surface of the screening box (1), a rectangular mounting groove (14) is provided on the left inner wall of the sliding groove (13), and sliding holes (15) are provided at the upper and lower ends of the left inner wall of the rectangular mounting groove (14) at positions corresponding to the U-shaped groove (8); A snap-fit ​​groove (16) is provided on the annular frame (9) at a position corresponding to the sliding hole (15), and a snap-fit ​​device is provided inside the rectangular installation groove (14), and the snap-fit ​​device is used to remove or fix the two annular frames (9).

2. The aggregate screening mechanism according to claim 1, characterized in that: The clamping device comprises a handle (17), the handle (17) is slidably connected to the inside of the sliding groove (13) and to the inner wall thereof, and one end of the handle (17) is slidably extended to the inside of the rectangular installation groove (14); One end of the handle (17) located inside the rectangular installation groove (14) is fixedly connected to a rectangular plate (18), and the rectangular plate (18) is slidably connected to the inner wall of the rectangular installation groove (14).

3. The aggregate screening mechanism according to claim 2, characterized in that: Springs (19) are fixedly installed at both upper and lower ends of the right inner wall of the rectangular installation groove (14), and the other ends of the two springs (19) are fixedly connected to L-shaped clamping joints (20), and the two L-shaped clamping joints (20) are arranged in a mirror image, and the vertical plates of the two L-shaped clamping joints (20) are movably connected to the upper and lower ends of the rectangular plate (18) respectively; The transverse plates of the two L-shaped clamping joints (20) are both slidably connected inside the sliding hole (15), and extend to the inside of the clamping groove (16), and are slidably plugged with the inside of the clamping groove (16).

4. The aggregate screening mechanism according to claim 1, characterized in that: The inner walls of the lower ends of the two U-shaped grooves (8) on the left and right sides are provided with mounting grooves (10), and pneumatic vibrators (11) are fixedly installed inside the four mounting grooves (10).

5. The aggregate screening mechanism according to claim 1, characterized in that: A rectangular discharge pipe (12) is provided at the upper end of the rear side surface of the screening box (1) corresponding to the position of the two annular frames (9), and the two rectangular discharge pipes (12) penetrate into the interior of the screening box (1) and communicate with the interior thereof; A circular discharge pipe (21) is fixedly mounted on the lower end surface of the screening box (1), and the upper end of the circular discharge pipe (21) penetrates into the interior of the screening box (1) and communicates with the interior thereof.

Images