Concrete gravel separation device

Abstract

The invention relates to the technical field of concrete treatment, in particular to a concrete gravel separation device which comprises a separation box, an annular groove is formed in the upper end of the separation box, an arc-shaped plate capable of rotating is slidably connected to the inner wall of the annular groove, and a storage box is fixedly connected to the upper end of the arc-shaped plate. A cylinder capable of rotating is connected to the inner bottom of the storage box in a sealed and sliding mode, and two loading holes communicating with the lower end of the cylinder are formed in the upper end of the cylinder. And the dredging mechanism comprises a fixing plate fixedly connected to the inner wall of the storage box, the lower end of the fixing plate is attached to the upper end of the cylinder, and one loading hole is located below the fixing plate. According to the device, the dredging mechanism is arranged, so that the multiple triangular plates move up and down and rotate at the same time, cleaning of residual concrete in the loading holes is accelerated, the dredging mechanism is not located in the loading holes, and meanwhile conveying of the other loading hole to the residual concrete is not affected in the cleaning process.

Description

Technical Field

[0001] The invention relates to the technical field of concrete processing, and in particular to a concrete sand and gravel separation device. Background Art

[0002] In order to reduce the waste of resources, the sand and stone in the concrete waste are usually separated by washing and recycling.

[0003] In the patent "A Concrete Sand and Gravel Separation Device" with application number "202222822733.6", the technical solution is to adjust the cylinder, and the cylinder drives the installation rod to move through the connecting frame, and the installation rod drives the limit plate and the plug plate to move. When the installation rod moves from the side close to the feeding trough toward the side of the sand and gravel separation box body, the plug plate is rotated by the reaction force of the remaining concrete in the feeding frame until the plug plate abuts against the limit plate. At this time, the two plug plates are unfolded and the remaining concrete in the feeding frame is pushed into the sand and gravel separation box body. Then, when the installation rod moves from the side close to the sand and gravel separation box toward the side of the feeding trough, the plug plate is driven by the force of the remaining concrete in the feeding frame to abut against the spring of the installation rod, reducing the plug plate from pushing the remaining concrete into the feeding trough. However, this solution also has the following problems:

[0004] The baffle plate is located in the feeding frame, so that during the conveying process of concrete residue, the baffle plate will block the flow of part of the concrete residue, reducing the unloading speed of the concrete residue, thereby reducing the efficiency of separating sand and gravel in the concrete residue, and when the inner wall of the feeding frame is cleaned, the concrete residue cannot be conveyed at this time, which further reduces the efficiency of separating sand and gravel in the concrete residue. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose a concrete sand and gravel separation device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A concrete sand and gravel separation device, comprising:

[0008] A separation box, wherein an annular groove is provided at the upper end of the separation box, a self-rotating arc plate is slidably connected to the inner wall of the annular groove, a material storage box is fixedly connected to the upper end of the arc plate, a self-rotating cylinder is sealed and slidably connected to the bottom of the material storage box, and two loading holes communicating with the lower end thereof are provided at the upper end of the cylinder;

[0009] Dredging mechanism, the dredging mechanism includes a fixing plate fixedly connected to the inner wall of the storage bin. The lower end of the fixing plate is in contact with the upper end of the cylinder, and one of the loading holes is located below the fixing plate. A first rod is fixedly connected to the side wall of the cylinder, and the side wall of the first rod is rotatably connected to the side wall of the fixing plate. An L-shaped plate is fixedly connected to the upper end of the fixing plate. A rectangular groove is opened at the upper end of the fixing plate and is aligned with one of the loading holes. A reciprocating lead screw is rotatably connected to the side wall of the L-shaped plate. A first plate is threadedly connected to the side wall of the reciprocating lead screw. The first plate is located in the rectangular groove. The lower end of the first plate is fixedly connected to a first disc through two connecting rods. A cavity is opened in the first disc. The bottom of the cavity is rotatably connected to a second rod. The lower end of the second rod is fixedly connected to a second disc. A plurality of grooves are opened on the side wall of the second disc. The inner walls of the plurality of grooves are elastically connected to triangular plates through springs.

[0010] Preferably, a round hole is opened at the upper end of the separation box, and the lower part of the side wall of the cylinder is located in the round hole.

[0011] Preferably, a threaded cylinder is rotatably connected to the top of the cavity. A first gear is fixedly connected to the side wall of the threaded cylinder. A second gear meshing with the first gear is fixedly connected to the side wall of the second rod. A vertical rod and a来福杆 (it seems there is a misspelling here, assuming it should be a correct name like a certain rod) are fixedly connected to the lower end of the L-shaped plate. The side wall of the vertical rod is slidably connected to the side wall of the first plate. The side wall of the来福杆 passes through the first plate and is threadedly connected to the inner wall of the threaded cylinder.

[0012] Preferably, a driving mechanism is provided on the separation box. The driving mechanism includes a first one-way bearing. A U-shaped plate is fixedly connected to the side wall of the separation box. A motor is fixedly connected to the upper end of the U-shaped plate. A second plate is fixedly connected to the side wall of the U-shaped plate. A third rod is rotatably connected to the upper end of the second plate. A U-shaped rod is fixedly connected between the movable end of the motor and the upper end of the third rod. A fourth rod is fixedly connected to the upper end of the storage bin. The side wall of the fourth rod is fixedly connected to the inner ring side wall of the first one-way bearing. The side wall of the third rod is fixedly connected to the outer ring of the first one-way bearing through a plurality of brackets.

[0013] Preferably, the driving mechanism further includes a second one-way bearing. The side wall of the reciprocating lead screw above the L-shaped plate is fixedly connected to the inner ring side wall of the second one-way bearing. A first wheel is fixedly connected to the side wall of the third rod. A second wheel is fixedly connected to the outer ring side wall of the second one-way bearing. A synchronous belt is connected between the first wheel and the second wheel.

[0014] Preferably, first discharge openings are opened on both sides of the bottom of the separation box, and a second discharge opening is opened in the middle of the bottom of the separation box. Two inclined filter plates are hermetically slidably connected to the inner wall of the separation box. A plurality of filter holes are opened at the upper ends of the two filter plates. The two first discharge openings are located on both sides of the two filter plates, and the second discharge opening is located between the two filter plates.

[0015] Preferably, two sealing frames are fixedly connected to the bottom of the separation box, and the inner walls of the two sealing frames are sealed and slidably connected with moving rods, one of the moving rods is fixedly connected to the first inclined plate at the upper end, and the other moving rod is fixedly connected to the second inclined plate at the upper end, the first inclined plate and the second inclined plate are respectively opposite to the two filter plates, and the upper ends of the first inclined plate and the second inclined plate are fixedly connected to a plurality of dredging rods corresponding to the plurality of filter holes one by one.

[0016] Preferably, the side wall of the C-shaped plate is fixedly connected to an oil pump frame, and hydraulic oil is provided in the oil pump frame. The inner wall of the sealing frame corresponding to the first inclined plate is connected to the inner wall of the oil pump frame through a first tube, and the inner wall of the sealing frame corresponding to the second inclined plate is connected to the inner wall of the oil pump frame through a second tube. The inner wall of the oil pump frame is slidably connected to a slide plate, and the side wall of the slide plate is rotatably connected to the side wall of the C-shaped rod through a rotating rod.

[0017] Preferably, a first solenoid valve is installed in the first tube, and a second solenoid valve is installed in the second tube, and both the first solenoid valve and the second solenoid valve are electrically connected to an external control mechanism.

[0018] Preferably, a gear ring is fixedly connected to the inner top of the separation box near the circular hole, and a third gear is fixedly connected to the cylindrical side wall, and the third gear is meshed with the gear ring.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. A dredging mechanism is provided so that a plurality of triangular plates can move up and down while rotating, so as to speed up the cleaning of the residual concrete in the loading hole. The dredging mechanism is not located in the loading hole, so as to avoid the situation in the prior art where the plug plate is located in the feeding frame, so that during the conveying process of the residual concrete, the plug plate will block the flow of part of the residual concrete, thereby reducing the unloading speed of the residual concrete.

[0021] 2. At the same time, during the cleaning process, it will not affect the transportation of the concrete residue by another loading hole, avoiding the inability to transport the concrete residue when cleaning the concrete residue in the prior art, which again reduces the efficiency of separating sand and gravel in the concrete residue, and further reduces the unloading speed of the concrete residue.

[0022] 3. The dredging rod, the first solenoid valve and the second solenoid valve are provided, so that the dredging rod can push out the stones in the multiple filter holes on the filter plate away from the cylinder to avoid blockage, thereby achieving continuous and efficient separation of concrete residues by the two filter plates intermittently, thereby increasing the unloading speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of a concrete sand and gravel separation device proposed by the present invention;

[0024] Figure 2 for Figure 1 A vertical cross-sectional structural schematic diagram of ;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0026] Figure 4 for Figure 3 A schematic diagram of the structure enlarged at B in the middle;

[0027] Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure of the middle pump oil frame;

[0028] Figure 6 for Figure 5 A schematic diagram of the structure enlarged at C in the middle;

[0029] Figure 7 for Figure 1 A rear view structural diagram of ;

[0030] Figure 8 for Figure 1 Schematic diagram of the structure of the central dredging mechanism;

[0031] Fig. 9 for Figure 1 A schematic diagram of the structure of the connection between the middle pump oil frame and the two sealing frames;

[0032] Fig.10 for Figure 1 A schematic diagram of the structure of the middle storage box from a top view;

[0033] Fig.11 for Fig.10 Schematic diagram of the structure viewed from above.

[0034] In the figure: 1. Separation box; 2. Annular groove; 3. Arc plate; 4. Storage bin; 5. Cylinder; 6. Loading hole; 7. Fixed plate; 8. First rod; 9. Rectangular groove; 10. L-shaped plate; 11. Reciprocating lead screw; 12. First plate; 13. Connecting rod; 14. First disc; 15. Cavity; 16. Second rod; 17. Groove; 18. Triangular plate; 19. Spring; 20. Threaded cylinder; 21. First gear; 22. Second gear; 23. Vertical rod; 24. Rifled rod; 25. U-shaped plate; 26. Motor; 27. U-shaped rod; 28. Third rod; 29. Fourth rod; 30. First one-way bearing; 31. Second one-way bearing; 32. First round; 33. Second round; 34. First discharge port; 35. Second discharge port; 36. Filter plate; 37. Filter hole; 38. Sealing frame; 39. Moving rod; 40. First inclined plate; 41. Second inclined plate; 42. Cleaning rod; 43. Oil pumping frame; 44. First pipe; 45. Second pipe; 46. First solenoid valve; 47. Second solenoid valve; 48. Slide plate; 49. Rotating rod; 50. Tooth ring; 51. Third gear; 52. Second disc; 53. Round hole; 54. Second plate. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Refer to Figure 1 - Fig.11 , a concrete sand and gravel separation device, including a separation box 1. On both sides of the inner bottom of the separation box 1, first discharge ports 34 are opened. In the middle of the inner bottom of the separation box 1, a second discharge port 35 is opened (as Figure 2 shown). On the inner wall of the separation box 1, two inclined filter plates 36 are hermetically slidably connected. A plurality of filter holes 37 are opened at the upper ends of the two filter plates 36. The two first discharge ports 34 are located on both sides of the two filter plates 36, and the second discharge port 35 is located between the two filter plates 36 (as Figure 2 shown).

[0037] The two inclined filter plates 36 can separate the sand and gravel in the concrete, and the sand flows out through the second discharge port 35, and the gravel flows out through the two first discharge ports 34.

[0038] An annular groove 2 is opened at the upper end of the separation box 1. An arc plate 3 that can rotate by itself is slidably connected to the inner wall of the annular groove 2. A storage bin 4 is fixedly connected to the upper end of the arc plate 3. A cylinder 5 that can rotate by itself is hermetically slidably connected to the inner bottom of the storage bin 4 (as Figure 2 and Fig.10The upper end of the cylinder 5 is provided with two loading holes 6 (as shown in FIG. Figure 2 and Fig.11 As shown), a circular hole 53 is opened at the upper end of the separation box 1, and the lower side wall of the cylinder 5 is located in the circular hole 53 (as shown in FIG. Figure 1 shown).

[0039] The dredging mechanism includes a fixed plate 7 fixedly connected to the inner wall of the storage box 4, the lower end of the fixed plate 7 is in contact with the upper end of the cylinder 5, and one of the loading holes 6 is located below the fixed plate 7, and the side wall of the cylinder 5 is fixedly connected to a first rod 8, and the side wall of the first rod 8 is rotatably connected to the side wall of the fixed plate 7 (such as Figure 3 As shown), an L-shaped plate 10 is fixedly connected to the upper end of the fixing plate 7, and a rectangular groove 9 (as shown) facing one of the loading holes 6 is opened on the upper end of the fixing plate 7 Figure 3 As shown), the side wall of the L-shaped plate 10 is rotatably connected to a reciprocating screw 11, and the side wall of the reciprocating screw 11 is threadedly connected to a first plate 12, the first plate 12 is located in the rectangular groove 9, the lower end of the first plate 12 is fixedly connected to a first plate 14 through two connecting rods 13, a cavity 15 is provided in the first plate 14, the bottom of the cavity 15 is rotatably connected to a second rod 16, the lower end of the second rod 16 is fixedly connected to a second plate 52, the side wall of the second plate 52 is provided with a plurality of grooves 17, and the inner walls of the plurality of grooves 17 are elastically connected to a triangular plate 18 through a spring 19 (as shown in FIG. Figure 4 shown).

[0040] The top of the cavity 15 is rotatably connected to a threaded cylinder 20, the side wall of the threaded cylinder 20 is fixedly connected to a first gear 21, the side wall of the second rod 16 is fixedly connected to a second gear 22 meshing with the first gear 21, and the lower end of the L-shaped plate 10 is respectively fixedly connected to a vertical rod 23 and a rifle rod 24, the side wall of the vertical rod 23 is slidably connected to the side wall of the first plate 12, and the side wall of the rifle rod 24 passes through the first plate 12 and is threadedly connected to the inner wall of the threaded cylinder 20 (such as Figure 3 and Figure 4 shown).

[0041] The concrete residue enters the separation box 1 through the loading hole 6 located outside the fixed plate 7, and at this time, the dredging mechanism can clean the concrete residue remaining on the inner wall of the loading hole 6 facing the fixed plate 7. The specific steps are as follows:

[0042] Drive the reciprocating screw 11 to rotate clockwise (such as Figure 3As shown), at this time, the first plate 12 will slide up and down on the side wall of the reciprocating screw 11, and then the first plate 12 drives the first plate 14 to move up and down through the two connecting rods 13, and the first plate 14 drives the second plate 52 to move up and down through the second rod 16. It should be noted that the lower end of the triangular plate 18 is chamfered, and at the same time, the setting of the triangular plate 18 makes it inconvenient for concrete residues to adhere to its surface, so that during the up and down movement of the second plate 52, multiple triangular plates 18 can fit with the inner wall of the loading hole 6 there under the action of multiple springs 19. At the same time, during the up and down movement of the first plate 14, the threaded cylinder 20 moves up and down on the side wall of the rifle rod 24. At this time, the threaded cylinder 20 can continuously rotate forward and reverse, and the first gear 21 The second gear 22 drives the second rod 16 to rotate, and drives the second plate 52 to rotate, so that the multiple triangular plates 18 move up and down while rotating, which speeds up the cleaning of the residual concrete in the loading hole 6. The dredging mechanism is not located in the loading hole 6, which avoids the situation in the prior art where the plug plate is located in the feeding frame, so that during the conveying of the residual concrete, the plug plate will block the flow of part of the residual concrete, reducing the unloading speed of the residual concrete. At the same time, during the cleaning process, it will not affect the conveying of the residual concrete by another loading hole 6, avoiding the situation in the prior art where the residual concrete cannot be conveyed when cleaning the residual concrete, which again reduces the efficiency of separating sand and gravel in the residual concrete.

[0043] The separation box 1 is provided with a driving mechanism, which includes a first one-way bearing 30, a shaped plate 25 is fixedly connected to the side wall of the separation box 1, a motor 26 is fixedly connected to the upper end of the shaped plate 25, and a second plate 54 (such as Figure 3 and Figure 6 As shown), the upper end of the second plate 54 is rotatably connected to the third rod 28, a U-shaped rod 27 is fixedly connected between the movable end of the motor 26 and the upper end of the third rod 28, the upper end of the storage box 4 is fixedly connected to the fourth rod 29, the side wall of the fourth rod 29 is fixedly connected to the side wall of the inner ring of the first one-way bearing 30, and the side wall of the third rod 28 is fixedly connected to the outer ring of the first one-way bearing 30 through a plurality of brackets.

[0044] It should be noted that when the motor 26 rotates counterclockwise (such as Figure 3 As shown), at this time, the outer ring of the first one-way bearing 30 is driven to rotate counterclockwise through the U-shaped rod 27 and the third rod 28. At this time, the outer ring of the first one-way bearing 30 drives its inner ring to rotate, driving the fourth rod 29 and the storage box 4 to rotate.

[0045] The driving mechanism also includes a second one-way bearing 31, the side wall of the reciprocating screw 11 located above the L-shaped plate 10 is fixedly connected to the inner ring side wall of the second one-way bearing 31, the side wall of the third rod 28 is fixedly connected to the first wheel 32, the outer ring side wall of the second one-way bearing 31 is fixedly connected to the second wheel 33, and a synchronous belt is connected between the first wheel 32 and the second wheel 33.

[0046] When the motor 26 rotates counterclockwise, the third rod 28 drives the outer ring of the second one-way bearing 31 to rotate counterclockwise through the first wheel 32, the synchronous belt and the second wheel 33. At this time, the outer ring of the second one-way bearing 31 does not drive its inner ring to rotate. When the motor 26 rotates clockwise, the outer ring of the first one-way bearing 30 is driven to rotate clockwise through the U-shaped rod 27 and the third rod 28. At this time, the outer ring of the first one-way bearing 30 does not drive its inner ring to rotate, and the third rod 28 drives the outer ring of the second one-way bearing 31 to rotate clockwise through the first wheel 32, the synchronous belt and the second wheel 33. At this time, the outer ring of the second one-way bearing 31 drives its inner ring to rotate.

[0047] A gear ring 50 is fixedly connected to the inner top of the separation box 1 near the circular hole 53, and a third gear 51 is fixedly connected to the side wall of the cylinder 5. The third gear 51 is meshed with the gear ring 50 (such as Figure 2 and Fig.11 shown).

[0048] After the fourth rod 29 drives the storage box 4 to rotate half a circle, the filter plate 36 opposite to the two loading holes 6 is changed. This indicates that there is more concrete residue remaining on the inner wall of the loading hole 6 used at the beginning. During the half-circle rotation of the storage box 4, the third gear 51 rotates an odd number of half a circle on the side wall of the gear ring 50, so that after the storage box 4 rotates half a circle, the positions of the two loading holes 6 can be replaced, that is, the loading hole 6 originally located in the storage box 4 is rotated to below the fixed plate 7, and the loading hole 6 originally located below the fixed plate 7 is rotated into the storage box 4.

[0049] Two sealing frames 38 are fixedly connected to the bottom of the separation box 1, and the inner walls of the two sealing frames 38 are sealed and slidably connected with moving rods 39, one of the moving rods 39 is fixedly connected to the upper end of a first inclined plate 40, and the other moving rod 39 is fixedly connected to the upper end of a second inclined plate 41, the first inclined plate 40 and the second inclined plate 41 are respectively opposite to the two filter plates 36, and the upper ends of the first inclined plate 40 and the second inclined plate 41 are fixedly connected to a plurality of dredging rods 42 corresponding to the plurality of filter holes 37.

[0050] An oil pump frame 43 is fixedly connected to the side wall of the C-shaped plate 25, and hydraulic oil is provided in the oil pump frame 43. The inner wall of the sealing frame 38 corresponding to the first inclined plate 40 is connected to the inner wall of the oil pump frame 43 through a first tube 44, and the inner wall of the sealing frame 38 corresponding to the second inclined plate 41 is connected to the inner wall of the oil pump frame 43 through a second tube 45. A slide plate 48 is slidably connected to the inner wall of the oil pump frame 43, and the side wall of the slide plate 48 is rotatably connected to the side wall of the C-shaped rod 27 through a rotating rod 49.

[0051] A first solenoid valve 46 (such as Figure 6 As shown), a second solenoid valve 47 is installed in the second tube 45, and the first solenoid valve 46 and the second solenoid valve 47 are both electrically connected to an external control mechanism.

[0052] It should be noted that, in the initial state, the two cylinders 5 are facing the filter plate 36 facing the first inclined plate 40, the first solenoid valve 46 is powered off and closed, and the second solenoid valve 47 is powered on and opened. Then, when the subsequent motor 26 rotates clockwise, the slide plate 48 is driven to slide back and forth in the oil pump frame 43 through the U-shaped rod 27 and the rotating rod 49, and the hydraulic oil in the oil pump frame 43 is continuously squeezed and extracted in the sealing frame 38 through the second pipe 45, thereby driving the moving rod 39 and the second inclined plate 41 to move up and down, and driving the multiple dredging rods 42 located on the second inclined plate 41 to move up and down, and the stones in the filter hole 37 facing the second inclined plate 41 are ejected to avoid blockage;

[0053] When the motor 26 rotates half a circle counterclockwise, the external control mechanism will immediately power on and open the first solenoid valve 46, and power off and close the second solenoid valve 47. Then, the movement of the slide plate 48 will cause the hydraulic oil in the pump oil frame 43 to be continuously squeezed and extracted in the sealing frame 38 through the first tube 44, thereby driving the moving rod 39 and the first inclined plate 40 to move up and down, and driving the multiple dredging rods 42 located on the first inclined plate 40 to move up and down, and ejecting the stones in the filter hole 37 opposite to the first inclined plate 40 to avoid blockage. After the subsequent motor 26 rotates half a circle counterclockwise again, the external control mechanism will immediately power off and close the first solenoid valve 46, and power on and open the second solenoid valve 47. Then, the above steps can be repeated to achieve intermittent and continuous efficient separation of concrete residues by the two filter plates 36.

[0054] It should be noted that, when the material storage box 4 is rotated, the second plate 52 is completely located in the rectangular groove 9, and the first inclined plate 40 and the second inclined plate 41 are both located at the lowest initial position.

[0055] When the sand and gravel in the concrete residue are separated, the concrete residue enters the separation box 1 from the loading hole 6 in the storage box 4 (such as Figure 2 As shown), at this time, the multiple filter holes 37 facing the loading hole 6 can separate the sand and gravel in the concrete residue, and the sand flows out through the second discharge port 35, and the gravel flows out through the two first discharge ports 34. At this time, the filter plate 36 involved in the filtration faces the first inclined plate 40;

[0056] When the residual concrete on the inner wall of the loading hole 6 at this position is too much and affects the outflow of the residual concrete, the driving motor 26 rotates half a circle counterclockwise (such as Figure 3 As shown in the figure, the outer ring of the first one-way bearing 30 is driven to rotate counterclockwise by the U-shaped rod 27 and the third rod 28, and the outer ring of the first one-way bearing 30 drives its inner ring to rotate, driving the fourth rod 29 and the storage box 4 to rotate half a circle, and rotating the cylinder 5 and the two loading holes 6 to the top of the filter plate 36 facing the second inclined plate 41;

[0057] And in the process of the storage box 4 rotating half a circle, the third gear 51 rotates an odd number of half a circle on the side wall of the gear ring 50, so that after the storage box 4 rotates half a circle, the positions of the two loading holes 6 can be replaced, that is, the loading hole 6 originally located in the storage box 4 rotates to below the fixed plate 7, and the loading hole 6 originally located below the fixed plate 7 rotates to the storage box 4, so that the remaining concrete in the storage box 4 can enter the separation box 1 through the clean loading hole 6 on the inner wall;

[0058] Then, when the driving motor 26 rotates clockwise (such as Figure 3 As shown), at this time, the third rod 28 drives the outer ring of the second one-way bearing 31 to rotate clockwise through the first wheel 32, the synchronous belt and the second wheel 33. At this time, the outer ring of the second one-way bearing 31 drives its inner ring to rotate, driving the reciprocating screw 11 to rotate clockwise (as shown in FIG. Figure 3 As shown), at this time, the first plate 12 will slide up and down on the side wall of the reciprocating screw 11, and then the first plate 12 drives the first plate 14 to move up and down through the two connecting rods 13, and the first plate 14 drives the second plate 52 to move up and down through the second rod 16. The multiple triangular plates 18 can fit with the inner wall of the loading hole 6 at this location under the action of multiple springs 19. At the same time, during the up and down movement of the first plate 14, the threaded cylinder 20 moves up and down on the side wall of the rifle rod 24. At this time, the threaded cylinder 20 can continuously rotate forward and reverse, and the second rod 16 is driven to rotate through the first gear 21 and the second gear 22, and the second plate 52 is driven to rotate, so that the multiple The triangular plate 18 moves up and down while rotating, which speeds up the cleaning of the residual concrete in the loading hole 6. The dredging mechanism is not located in the loading hole 6, which avoids the blockage plate in the feeding frame in the prior art, so that during the conveying process of the residual concrete, the blockage plate will block the flow of part of the residual concrete, reducing the unloading speed of the residual concrete. At the same time, during the cleaning process, it will not affect the conveying of the residual concrete by another loading hole 6, avoiding the inability to convey the residual concrete when cleaning the residual concrete in the prior art, which again reduces the efficiency of separating sand and gravel in the residual concrete.

[0059] When there is a lot of concrete residue remaining in the loading hole 6 directly facing the second inclined plate 41, which affects the outflow of the concrete residue, the above steps can be repeated;

[0060] When the motor 26 rotates half a circle counterclockwise, the external control mechanism will immediately power on the first solenoid valve 46 to open it, and power off the second solenoid valve 47 to close it. Then, when the motor 26 rotates clockwise, the slide plate 48 is driven to slide back and forth in the oil pump frame 43 through the U-shaped rod 27 and the rotating rod 49, so that the hydraulic oil in the oil pump frame 43 is continuously squeezed and extracted in the sealing frame 38 through the first pipe 44, thereby driving the moving rod 39 and the first inclined plate 40 to move up and down, and driving the multiple dredging rods 42 located on the first inclined plate 40 to move up and down, so as to eject the stones in the filter hole 37 facing the first inclined plate 40 to avoid blockage.

[0061] After the subsequent motor 26 rotates counterclockwise half a circle again, the external control mechanism will immediately cut off the power to the first solenoid valve 46 and turn on the power to the second solenoid valve 47, and then repeat the above steps to achieve intermittent and continuous efficient separation of concrete residues by the two filter plates 36.

[0062] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A concrete sand and gravel separation device, characterized in that: include: A separation box (1), wherein an annular groove (2) is provided at the upper end of the separation box (1), a self-rotating arc plate (3) is slidably connected to the inner wall of the annular groove (2), a material storage box (4) is fixedly connected to the upper end of the arc plate (3), a self-rotating cylinder (5) is sealed and slidably connected to the bottom of the material storage box (4), and two loading holes (6) communicating with the lower end of the cylinder (5) are provided at the upper end of the cylinder (5); A dredging mechanism, the dredging mechanism comprising a fixed plate (7) fixedly connected to the inner wall of a material storage box (4), the lower end of the fixed plate (7) being fitted with the upper end of a cylinder (5), and one of the loading holes (6) being located below the fixed plate (7), the side wall of the cylinder (5) being fixedly connected with a first rod (8), the side wall of the first rod (8) being rotatably connected with the side wall of the fixed plate (7), the upper end of the fixed plate (7) being fixedly connected with an L-shaped plate (10), the upper end of the fixed plate (7) being provided with a rectangular groove (9) facing one of the loading holes (6), and the side wall of the L-shaped plate (10) being rotatably connected with a reciprocating screw (11) The side wall of the reciprocating screw (11) is threadedly connected to a first plate (12), the first plate (12) is located in a rectangular groove (9), the lower end of the first plate (12) is fixedly connected to a first plate (14) via two connecting rods (13), a cavity (15) is provided in the first plate (14), the bottom of the cavity (15) is rotatably connected to a second rod (16), the lower end of the second rod (16) is fixedly connected to a second plate (52), a plurality of grooves (17) are provided on the side wall of the second plate (52), and the inner walls of the plurality of grooves (17) are elastically connected to a triangular plate (18) via a spring (19).

2. A concrete sand and gravel separation device according to claim 1, characterized in that: A circular hole (53) is provided at the upper end of the separation box (1), and the lower part of the side wall of the cylinder (5) is located in the circular hole (53).

3. A concrete sand and gravel separation device according to claim 1, characterized in that: A threaded barrel (20) is rotatably connected to the top of the cavity (15); a first gear (21) is fixedly connected to the side wall of the threaded barrel (20); a second gear (22) meshing with the first gear (21) is fixedly connected to the side wall of the second rod (16); a vertical rod (23) and a rifle rod (24) are respectively fixedly connected to the lower end of the L-shaped plate (10); the side wall of the vertical rod (23) is slidably connected to the side wall of the first plate (12); and the side wall of the rifle rod (24) penetrates the first plate (12) and is threadedly connected to the inner wall of the threaded barrel (20).

4. The concrete sand and gravel separation device according to claim 1, characterized in that: A driving mechanism is provided on the separation box (1). The driving mechanism includes a first one-way bearing (30). A U-shaped plate (25) is fixedly connected to the side wall of the separation box (1). A motor (26) is fixedly connected to the upper end of the U-shaped plate (25). A second plate (54) is fixedly connected to the side wall of the U-shaped plate (25). A third rod (28) is rotatably connected to the upper end of the second plate (54). A U-shaped rod (27) is fixedly connected between the movable end of the motor (26) and the upper end of the third rod (28). A fourth rod (29) is fixedly connected to the upper end of the storage box (4). The side wall of the fourth rod (29) is fixedly connected to the inner side wall of the inner ring of the first one-way bearing (30). The side wall of the third rod (28) is fixedly connected to the outer ring of the first one-way bearing (30) through a plurality of brackets.

5. A concrete sand and gravel separation device according to claim 4, characterized in that: The driving mechanism further includes a second one-way bearing (31). The side wall of the reciprocating lead screw (11) above the L-shaped plate (10) is fixedly connected to the inner side wall of the inner ring of the second one-way bearing (31). A first wheel (32) is fixedly connected to the side wall of the third rod (28). A second wheel (33) is fixedly connected to the outer side wall of the outer ring of the second one-way bearing (31). A synchronous belt is connected between the first wheel (32) and the second wheel (33).

6. The concrete sand and gravel separation device according to claim 4, characterized in that: First discharge openings (34) are formed on both sides of the inner bottom of the separation box (1). A second discharge opening (35) is formed in the middle of the inner bottom of the separation box (1). Two inclined filter plates (36) are hermetically and slidably connected to the inner wall of the separation box (1). A plurality of filter holes (37) are formed in the upper ends of the two filter plates (36). The two first discharge openings (34) are located on both sides of the two filter plates (36). The second discharge opening (35) is located between the two filter plates (36).

7. A concrete sand and gravel separation device according to claim 6, characterized in that: Two sealing frames (38) are fixedly connected to the inner bottom of the separation box (1). The inner walls of the two sealing frames (38) are hermetically and slidably connected to moving rods (39). A first inclined plate (40) is fixedly connected to the upper end of one of the moving rods (39). A second inclined plate (41) is fixedly connected to the upper end of the other moving rod (39). The first inclined plate (40) and the second inclined plate (41) are respectively opposite to the two filter plates (36). A plurality of dredging rods (42) corresponding to the plurality of filter holes (37) one by one are fixedly connected to the upper ends of the first inclined plate (40) and the second inclined plate (41).

8. The concrete sand and gravel separation device according to claim 7, characterized in that: A pump oil frame (43) is fixedly connected to the side wall of the U-shaped plate (25). Hydraulic oil is provided in the pump oil frame (43). The inner wall of the sealing frame (38) corresponding to the first inclined plate (40) is communicated with the inner wall of the pump oil frame (43) through a first pipe (44). The inner wall of the sealing frame (38) corresponding to the second inclined plate (41) is communicated with the inner wall of the pump oil frame (43) through a second pipe (45). A sliding plate (48) is slidably connected to the inner wall of the pump oil frame (43). The side wall of the sliding plate (48) is rotatably connected to the side wall of the U-shaped rod (27) through a rotating rod (49).

9. The concrete sand and gravel separation device according to claim 8, characterized in that: A first solenoid valve (46) is installed in the first tube (44), and a second solenoid valve (47) is installed in the second tube (45). Both the first solenoid valve (46) and the second solenoid valve (47) are electrically connected to an external control mechanism.

10. The concrete sand and gravel separation device according to claim 2, characterized in that: A gear ring (50) is fixedly connected to the inner top of the separation box (1) near the circular hole (53), and a third gear (51) is fixedly connected to the side wall of the cylinder (5), and the third gear (51) is meshed with the gear ring (50).

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