A construction waste recycling device that is convenient for screening and its use method

Abstract

The invention relates to the technical field of construction waste recycling, and discloses a construction waste recycling device and a method of using the same for convenient screening, including a fixed frame. The invention rotates a material distribution component, and the central axis rod rotates with a fixed ring, and the fixed ring rotates with fixed rods 1 and 2 following the central axis rod, and fixed rods 2 move with connecting block 1 and clamping block 1 in a wavy annular groove. Due to the influence of the wavy annular groove, fixed rod 2 will continuously perform telescopic movement inside fixed rod 1, and the arc frame and the arc rod will rotate with fixed rod 1. Because the special-shaped sweeping plate is connected to the arc frame through a positioning frame, the special-shaped sweeping plate will also move when the arc frame moves, and the positioning frame is connected to the outer side of the arc frame by a square groove, and the outer surface of the special-shaped sweeping plate contacts the inner wall of the screening box, so the construction waste can also be scattered, so that the construction waste can fall in batches, and the strong magnetic suction plate can better screen out the iron-containing substances in the construction waste.

Description

Technical Field

[0001] The invention relates to the technical field of construction waste recycling, and in particular to a construction waste recycling device that is convenient for screening and a use method thereof. Background Art

[0002] Construction waste refers to construction waste generated by human or natural factors during construction, including waste soil, abandoned soil and silt, which can be transported to earth pits as waste components for landfill treatment;

[0003] However, the recycling device currently in use will have poor screening efficiency due to too much construction waste being input at one time. Even if the iron-containing substances in the construction waste are separated by magnets, the excessive amount of construction waste will affect the magnet's screening of the iron-containing substances. Since the construction waste is in a flowing state, even if there are iron-containing substances adsorbed on the magnet due to magnetic force, the iron-containing substances will be taken away by the flow of the construction waste, resulting in poor screening effect. The recycling device often cannot reach the predetermined workload. For this reason, we propose a construction waste recycling device that is convenient for screening and a method for using the same. Summary of the invention

[0004] The object of the present invention is to provide a construction waste recycling device that is convenient for screening and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention provides a construction waste recycling device that is convenient for screening and a method for using the same, comprising a fixed frame, a fixed frame having a fixed frame fixedly connected therein horizontally, a placement slot provided therein, the placement slot being set at a forty-five degree inclination angle, a screening box being placed therein, the screening box being placed at a forty-five degree angle, so that construction waste can flow downward better, thereby improving the screening effect of construction waste, a connecting frame being fixedly connected to the left lower end of the fixed frame, a fixed plate being fixedly connected to the left bottom of the inner wall of the fixed frame,

[0007] The outer surface of the screening box is fixedly connected with gear teeth, a central axis rod is arranged at the central axis inside the screening box, a rotating material distribution component is arranged outside the central axis rod, and a wave-shaped annular groove is respectively opened at the upper and lower ends inside the screening box;

[0008] The rotating material distribution assembly includes a fixing ring fixedly connected to the outside of the central axis rod, the top and bottom of the fixing ring are rotatably connected to a fixing rod 1, the fixing rod 2 is slidably connected inside the fixing rod 1, the side of the fixing rod 2 away from the fixing ring passes through the fixing rod 1 and extends to the outside, the end of the fixing rod 2 away from the fixing rod 1 is rotatably connected to a connecting block 1, an arc plate is slidably connected inside the wavy ring groove, a sliding groove is provided on the inner surface of the arc plate, a positioning rod is vertically fixedly connected inside the sliding groove, the connecting block 1 is slidably connected to the outer surface of the positioning rod, the position of the connecting block 1 can be limited by the positioning rod so that it will not separate from the arc plate, and the outer surface of the end of the connecting block 1 away from the fixing rod 2 is in contact with the inner wall of the sliding groove.

[0009] Furthermore, the bottom surface of the fixing rod 1 at the bottom contacts with the long strip block 1, and the top surface of the fixing rod 1 at the top contacts with the long strip block 2. The sides of the long strip block 1 and the long strip block 2 that are close to each other are fixedly connected with a clamping block 1. The sides of the fixing rod 1 and the fixing rod 2 that are away from each other are both provided with a sliding groove, and the outer surface of the clamping block 1 contacts with the inner wall of the sliding groove;

[0010] The top surface of the fixed rod 1 at the bottom contacts with an arc frame, the arc frame is slidably connected with an arc rod inside, the top end of the arc rod contacts with the bottom surface of the fixed rod 2 at the top, the arc frame and the arc rod are fixedly connected with a rotating shaft at one end away from each other, the left and right end surfaces of the rotating shaft at the bottom are rotatably connected with a connecting plate 1, the left and right end surfaces of the rotating shaft at the top are rotatably connected with a connecting plate 2, and the arc frame and the arc rod are on the same center of a circle;

[0011] The end of the connecting plate 1 away from the arc frame is rotatably connected to the long strip block 1, the end of the connecting plate 2 away from the arc rod is rotatably connected to the long strip block 2, a spring 1 is arranged inside the fixed rod 1, one end of the spring 1 is fixedly connected to the inner wall of the fixed rod 1, and the other end of the spring 1 is fixedly connected to the fixed rod 2.

[0012] Furthermore, the back of the arc frame contacts with a special-shaped sweeping plate, the outer surface of the special-shaped sweeping plate contacts with the inner wall of the screening box, the front center axis of the special-shaped sweeping plate is fixedly connected with a positioning frame, a square groove is opened inside the positioning frame, and the inner wall of the square groove contacts with the surface of the arc frame;

[0013] The upper and lower ends of the inner wall of the screening box are respectively in contact with annular baffles, the position of the annular baffle corresponds to the position of the wavy annular groove, and a special-shaped inclined plate is arranged in an annular shape on the inner surface of the annular baffle at the top, and the sides of the six special-shaped inclined plates close to each other at the bottom are in contact with the outer surface of the central axis rod, and the sides of the six special-shaped inclined plates far away from each other at the top are in contact with the inner wall of the screening box, and a strong magnetic suction plate is arranged under the annular baffle at the bottom, and an opening is opened on the inner surface of the annular baffle, and the inner surface of the opening is fixedly connected to the outer surface of the connecting block, and the annular baffle can prevent construction waste from entering the wavy annular groove during screening, so as to achieve a certain sealing effect on the wavy annular groove.

[0014] Furthermore, a bidirectional stepper motor 1 is fixedly connected to the central axis at the top of the fixed plate, and the output end of the bidirectional stepper motor 1 is rotatably connected to a docking plate, and the bottom of the docking plate is fixedly connected to the top of the fixed plate. A transmission rod 1 and a transmission rod 2 are respectively provided on the left and right sides of the bidirectional stepper motor 1, and the front and rear end outer surfaces of the transmission rod 1 are rotatably connected to the limit plate, and the outer surface of the limit plate is fixedly connected to the fixed frame, and the front and rear end of the transmission rod 2 are rotatably connected to the connecting frame, and the outer surfaces of the transmission rod 1 and the transmission rod 2 are both in contact with a transmission belt, and the outer surface of the bidirectional stepper motor 1 is in contact with a belt 1, and the transmission rod 2 is connected to the bidirectional stepper motor 1 through a belt transmission connection.

[0015] Furthermore, a bidirectional stepper motor 2 is fixedly installed on the top of the fixing frame located at the central axis, a top rod is rotatably connected to the top of the fixing frame located at the front and back sides, a placement frame is fixedly connected to the outer surface of the bidirectional stepper motor 2, the bottom of the placement frame is fixedly connected to the top of the fixing frame located at the central axis, a large gear is threadedly connected to the top output end of the bidirectional stepper motor 2, and a rotating wheel 1 is fixedly connected to the top output end surface and the bottom output end of the bidirectional stepper motor 2;

[0016] The top of the top rod is fixedly connected with a rotating wheel 2, the bottom of the fixing frame located at the front and back sides is rotatably connected with a bottom rod, the bottom of the bottom rod is fixedly connected with a rotating wheel 3, the outer surfaces of the rotating wheel 1 and the rotating wheel 2 located at the top are sleeved with a belt 2, the outer surfaces of the rotating wheel 1 and the rotating wheel 3 located at the bottom are sleeved with a belt 3, the bottom output end of the two-way stepping motor 2 and the outer surface of the bottom rod are respectively sleeved with a belt 4, the top of the belt 4 contacts with a limiting ring, the limiting ring located at the central axis is fixedly connected to the outer wall of the bottom output end of the two-way stepping motor 2, the limiting ring located at the front and back sides is fixedly connected to the outer surface of the bottom rod, and the top of the top rod is threadedly connected with a pinion.

[0017] Furthermore, a limiting bottom block is fixedly connected to the bottom of the fixing frame in an annular manner, and the limiting bottom block is arranged in an arc shape. The inner surface of the limiting bottom block is in contact with the outer surface and the bottom of the screening box respectively. The central axis rod located at the central axis is transmission connected to the bottom output end of the second bidirectional stepping motor through the belt four located at the central axis, and the central axis rod located at the front and back sides is transmission connected through the belt four located at the front and back sides. The large gear is meshed with the gear teeth located at the central axis, and the two small gears are respectively meshed with the gear teeth located at the front and back sides. Both the large gear and the small gear can be disassembled by threads, and will not affect the staff from taking out the screening box.

[0018] The top of the screening box is provided with a collar, and the top and bottom of the outside of the collar are fixedly connected to a fixing bar. The upper end of the fixing bar is provided with a through groove, and a round rod is slidably connected to the through groove. The outer surface of the round rod is fixedly connected to a triangular block. A square block is arranged on the outside of the collar, and a T-shaped rod is slidably connected to the inside of the square block. One end of the T-shaped rod is fixedly connected to a spring, and the other end of the T-shaped rod passes through the square block and is fixedly connected to the triangular block. A clamping rod is fixedly connected to a side of the square block close to the collar. A square groove is provided on the top of the screening box, and a square bar rod is slidably connected in the square groove. The tops of the three square bar rods are fixedly connected to a tripod, and the inner surface of the square bar rod is fixedly connected to the outer surface of the special-shaped inclined plate. A clamping groove 1 is provided on the side away from each other of the six square bar rods, and one end of the clamping rod away from the square block passes through the collar and is clamped in the clamping groove 1.

[0019] Furthermore, there is a certain gap between the top of the strong magnetic suction plate and the bottom of the annular baffle at the bottom, the top of the strong magnetic suction plate is fixedly connected with a right-angle long plate, one end of the right-angle long plate away from the central axis rod is in contact with the inner surface of the screening box, and the left side of the bottom of the strong magnetic suction plate at the top is fixedly connected with a fixed shaft, and the bottom of the fixed shaft is fixedly connected with an auxiliary suction plate, and the auxiliary suction plate can assist the strong magnetic suction plate to adsorb iron-containing substances and screen them out from construction waste;

[0020] A second card slot and a third card slot are respectively provided on the left and right sides of the lower end of the inner wall of the screening box, and a second card block is clamped inside the second card slot and the third card slot. The top of the second card block located inside the second card slot is clamped with the bottom of the strong magnetic suction plate, and the top of the third card block located inside the third card slot is clamped with the bottom of the auxiliary suction plate.

[0021] Furthermore, a first air groove is provided inside the central axis rod, a moving block is sealed inside the first air groove, a second air groove is provided above the first air groove, a clamping block four is sealed inside the second air groove, a clamping groove four is provided on the inner surface of the strong magnetic suction plate at the upper end, the outer surface of the clamping block four is in contact with the inner surface of the clamping groove four, a threaded long rod is rotatably connected to the bottom of the moving block, the bottom of the threaded long rod passes through the first air groove and extends to the outside, the threaded long rod is threadedly connected to the central axis rod, and the first air groove and the second air groove are connected through air holes.

[0022] A construction waste recycling device that is convenient for screening, and a method for using the construction waste recycling device, comprising the following steps:

[0023] Step 1: The staff starts the bidirectional stepper motor 1 and the bidirectional stepper motor 2 at the same time. The bidirectional stepper motor 1 transmits the rotational force to the transmission rod 2 on the left side through the belt 1. The transmission rod 2 starts to rotate and transmits with the transmission belt;

[0024] Step 2: The bidirectional stepper motor 2 rotates the large gear at the top and the wheel 1 at the bottom at the same time. The wheel 1 at the top transmits the rotation force to the top rod through the belt 2. At this time, the large gear and the small gear will rotate the screening box through the gear teeth. The wheel 1 at the bottom rotates the wheel 2 and the bottom rod through the belt 3. The bottom output end of the bidirectional stepper motor 2 and the bottom rod will rotate the middle shaft rod through the belt 4. At this time, the middle shaft rod and the screening box will rotate in opposite directions. Then the staff will evenly put the crushed construction waste that needs to be screened into the screening box. The thread settings of the large gear and the small gear are the same, and the rotation direction of the large gear and the small gear is the direction of tightening the thread.

[0025] Step 3: The construction waste put into the screening box will slide downward under the influence of gravity. Due to the influence of the square bar, the screening box will rotate with the special-shaped inclined plate when it rotates, which can break up the construction waste piled up in the screening box. When the special-shaped inclined plate needs to be replaced, the staff will pull the triangular block outward, and the triangular block will move with the round rod in the through groove of the fixed bar. The T-shaped rod inside the square block will also move outward under the influence of the movement of the triangular block. The clamping rod will be separated from the square bar as the square block moves. At this time, the square bar and the special-shaped inclined plate lose the position limit of the clamping rod, and the staff can take it out of the screening box;

[0026] Step 4: The central axis rod rotates with the fixed ring, and the fixed ring rotates with the fixed rod 1 and the fixed rod 2 following the central axis rod. The fixed rod 2 moves with the connecting block 1 and the clamping block 1 in the wavy ring groove. Due to the influence of the wavy ring groove, the fixed rod 2 will continuously perform telescopic movement inside the fixed rod 1, and the arc frame and the arc rod will rotate with the fixed rod 1. Because the special-shaped sweeping plate is connected to the arc frame through the positioning frame, the special-shaped sweeping plate will also move when the arc frame moves, and the positioning frame is connected to the outside of the arc frame by the square groove. At the same time, the outer surface of the special-shaped sweeping plate contacts the inner wall of the screening box, so the construction waste can also be scattered;

[0027] Step 5: The strong magnetic suction plates at the top and bottom rotate in opposite directions. Due to the special shape of the strong magnetic suction plate, the construction waste can only slide down from the specific notch on the strong magnetic suction plate. The right-angled long plate at the top of the strong magnetic suction plate will take away some of the accumulated construction waste. When the right-angled long plate rotates to a higher position, the non-iron-containing substances will fall by gravity, and the iron-containing substances will be adsorbed on the strong magnetic suction plate. The construction waste that enters the bottom through the notch will contact the auxiliary suction plate, and the auxiliary suction plate will also leave the iron-containing substances. The strong magnetic suction plate located below and rotating with the screening box will also do the same work. The construction waste after two screenings will fall on the top of the conveyor belt;

[0028] Step six: When the strong magnetic suction plate needs to be removed, the staff first uses the two-way stepper motor 2 to loosen the large gear and the small gear. As the two are removed, the screening box can be taken out of the fixed frame. At this time, the strong magnetic suction plate at the bottom must be removed first. The staff can directly remove the block 3 used to fix the bottom strong magnetic suction plate and the auxiliary suction plate to remove the strong magnetic suction plate at the bottom. Then the staff rotates the threaded long rod at the bottom of the central axis, and the moving block moves downward with the threaded long rod. The air inside the second air groove enters the first air groove through the air hole, and the block 4 used to fix the strong magnetic suction plate at the top enters the second air groove under the attraction of negative pressure. The strong magnetic suction plate at the top can also be removed after it loses its limitation.

[0029] The present invention has the following beneficial effects:

[0030] (1) The present invention rotates the material distribution component, the central axis rod rotates with the fixed ring, the fixed ring rotates with the fixed rod one and the fixed rod two following the central axis rod, the fixed rod two moves with the connecting block one and the clamping block one in the wavy ring groove, due to the influence of the wavy ring groove, the fixed rod two will continuously perform telescopic movement inside the fixed rod one, the arc frame and the arc rod will rotate with the fixed rod one, because the special-shaped sweeping plate is connected to the arc frame through the positioning frame, so when the arc frame moves, the special-shaped sweeping plate will also move with it, and the positioning frame is connected to the outer side of the arc frame by the square groove, and at the same time, the outer surface of the special-shaped sweeping plate contacts the inner wall of the screening box, so that the construction waste can also be broken up, so that the construction waste can fall in batches, so that the strong magnetic suction plate can better screen out the iron-containing substances in the construction waste.

[0031] (2) The present invention uses a strong magnetic suction plate, and the strong magnetic suction plates located at the top and at the bottom rotate in opposite directions. Due to the special shape setting of the strong magnetic suction plate, the construction waste can only slide down from the specific notch on the strong magnetic suction plate. The right-angled long plate located on the top of the strong magnetic suction plate will take away a part of the accumulated construction waste. When the right-angled long plate rotates to a higher position, the non-iron-containing substances will fall by gravity, and the iron-containing substances will be adsorbed on the strong magnetic suction plate. The construction waste entering the bottom through the notch will contact the auxiliary suction plate, and the auxiliary suction plate will also leave the iron-containing substances, thereby achieving the effect of screening the construction waste. The strong magnetic suction plate located below and rotating with the screening box will also perform the same work. After two screenings, the construction waste will fall on the top of the conveyor belt. Relying on the two screenings, most of the iron-containing substances can be screened out, thereby improving the screening effect.

[0032] (3) With the special-shaped inclined plate of the present invention, the construction waste thrown into the screening box will slide downward under the influence of gravity. Due to the influence of the square bar, the screening box will rotate with the special-shaped inclined plate when it rotates, so that the construction waste piled up in the screening box can be broken up and flow downward in batches, thereby reducing the working pressure of the rotating material dividing component and being able to withstand the impact force of the construction waste when it is thrown in. When it is necessary to replace the special-shaped inclined plate, the staff will pull the triangular block outward, and the triangular block will move with the round rod in the through groove of the fixed bar. The T-shaped rod located inside the square block will also move outward under the influence of the movement of the triangular block. The clamping rod will separate from the square bar as the square block moves. At this time, the square bar and the special-shaped inclined plate will lose the position limitation of the clamping rod, and the staff can take it out of the screening box for maintenance and cleaning.

[0033] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the overall structure of the fixing plate of the present invention;

[0037] Figure 3 It is a schematic diagram of the overall structure of the fixing frame of the present invention;

[0038] Figure 4 It is a schematic diagram of the overall internal structure of the screening box of the present invention;

[0039] Figure 5 It is a schematic diagram of the structure of the wavy annular groove of the present invention;

[0040] Figure 6 This is a schematic diagram of the overall external structure of the screening box of the present invention;

[0041] Figure 7 It is a schematic diagram of the overall structure of the rotating material distribution assembly of the present invention;

[0042] Figure 8 For the present invention Figure 7 A is a schematic diagram of the partially enlarged structure of the middle part;

[0043] Fig. 9 This is a schematic diagram of the overall structure of the strong magnetic attraction plate of the present invention;

[0044] Fig.10 It is a schematic diagram of the internal structure of the central shaft of the present invention.

[0045] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0046] In the figure: 1, fixed frame; 2, fixed frame; 21, two-way stepping motor 2; 22, placement frame; 23, large gear; 24, belt 2; 25, belt 3; 26, belt 4; 27, limit ring; 28, small gear; 3, screening box; 301, fixed bar; 302, round rod; 303, triangular block; 304, square block; 305, T-shaped rod; 306, clamping rod; 31, gear teeth; 32, middle axis rod; 33, annular baffle; 35, special-shaped inclined plate; 351, square bar; 352, tripod; 36, strong magnetic suction plate; 361, right-angle long plate; 362, fixed axis; 363, auxiliary suction plate; 364 , moving block; 365, clamping block four; 366, threaded long rod; 37, rotating material distribution component; 371, fixing ring; 372, fixing rod one; 373, fixing rod two; 374, long strip block one; 375, connecting plate one; 376, arc frame; 377, arc rod; 378, connecting plate two; 379, long strip block two; 380, positioning frame; 381, special-shaped sweeping plate; 382, ​​arc plate; 383, connecting block one; 384, clamping block one; 4, connecting frame; 5, fixing plate; 51, two-way stepping motor one; 52, docking plate; 53, transmission rod one; 54, limit plate; 55, transmission rod two; 6, transmission belt. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] See also Figure 1-Figure 10 As shown, the present invention is a construction waste recycling device that is convenient for screening and a method of using the same, comprising a fixed frame 1, a fixed frame 2 is transversely fixedly connected inside the fixed frame 1, a placement slot is provided inside the fixed frame 2, the placement slot is set at a 45-degree inclination angle, a screening box 3 is placed inside the placement slot, a connecting frame 4 is fixedly connected to the lower left end of the fixed frame 1, and a fixed plate 5 is fixedly connected to the left side of the bottom of the inner wall of the fixed frame 1.

[0049] The outer surface of the screening box 3 is fixedly connected with a gear 31, a central axis rod 32 is arranged at the central axis inside the screening box 3, a rotating material dividing assembly 37 is arranged outside the central axis rod 32, and a wave-shaped annular groove is respectively opened at the upper and lower ends of the screening box 3;

[0050] The rotating material distribution assembly 37 includes a fixing ring 371 fixedly connected to the outside of the central axis rod 32, the top and bottom of the fixing ring 371 are both rotatably connected to a fixing rod 1 372, a fixing rod 2 373 is slidably connected inside the fixing rod 1 372, a side of the fixing rod 2 373 away from the fixing ring 371 penetrates the fixing rod 1 372 and extends to the outside, and an end of the fixing rod 2 373 away from the fixing rod 1 372 is rotatably connected to a connecting block 1 383;

[0051] An arc plate 382 is slidably connected inside the wavy annular groove, a sliding groove is provided on the inner surface of the arc plate 382, ​​a positioning rod is vertically fixedly connected inside the sliding groove, a connecting block 383 is slidably connected to the outer surface of the positioning rod, and the outer surface of one end of the connecting block 383 away from the fixed rod 2 373 contacts the inner wall of the sliding groove.

[0052] The bottom surface of the fixing rod 1 372 at the bottom contacts with a long strip block 1 374, and the top surface of the fixing rod 1 372 at the top contacts with a long strip block 2 379. A clamping block 1 384 is fixedly connected to the side where the long strip blocks 1 374 and 379 are close to each other. A sliding groove is provided on the side where the fixing rod 1 372 and the fixing rod 2 373 are far away from each other, and the outer surface of the clamping block 1 384 contacts the inner wall of the sliding groove.

[0053] The top surface of the fixed rod 1 372 at the bottom contacts with an arc frame 376, and an arc rod 377 is slidably connected inside the arc frame 376. The top end of the arc rod 377 contacts the bottom surface of the fixed rod 2 373 at the top. A rotating shaft is fixedly connected inside the ends of the arc frame 376 and the arc rod 377 that are away from each other. The left and right end surfaces of the rotating shaft at the bottom are rotatably connected with a connecting plate 1 375, and the left and right end surfaces of the rotating shaft at the top are rotatably connected with a connecting plate 2 378;

[0054] One end of the connecting plate 1 375 away from the arc frame 376 is rotatably connected to the long strip block 1 374, and one end of the connecting plate 2 378 away from the arc rod 377 is rotatably connected to the long strip block 2 379. A spring 1 is arranged inside the fixing rod 1 372, one end of the spring 1 is fixedly connected to the inner wall of the fixing rod 1 372, and the other end of the spring 1 is fixedly connected to the fixing rod 2 373.

[0055] The back of the arc frame 376 contacts with a special-shaped sweeping plate 381, and the outer surface of the special-shaped sweeping plate 381 contacts with the inner wall of the screening box 3. A positioning frame 380 is fixedly connected to the central axis of the front of the special-shaped sweeping plate 381. A square groove is opened inside the positioning frame 380, and the inner wall of the square groove contacts with the surface of the arc frame 376.

[0056] The upper and lower ends of the inner wall of the screening box 3 are respectively in contact with an annular baffle 33, and the position of the annular baffle 33 corresponds to the position of the wavy annular groove. A special-shaped inclined plate 35 is arranged in an annular shape on the inner surface of the annular baffle 33 at the top. The sides of the six special-shaped inclined plates 35 that are close to each other at the bottom are in contact with the outer surface of the central axis rod 32, and the sides of the six special-shaped inclined plates 35 that are far away from each other at the top are in contact with the inner wall of the screening box 3. A strong magnetic attraction plate 36 is arranged below the annular baffle 33 at the bottom. An opening is opened on the inner surface of the annular baffle 33, and the inner surface of the opening is fixedly connected to the outer surface of the connecting block 383.

[0057] A bidirectional stepper motor 51 is fixedly connected to the middle axis at the top of the fixed plate 5, and a docking plate 52 is rotatably connected to the output end of the bidirectional stepper motor 51. The bottom of the docking plate 52 is fixedly connected to the top of the fixed plate 5. A transmission rod 53 and a transmission rod 55 are respectively arranged on the left and right sides of the bidirectional stepper motor 51. The front and rear end outer surfaces of the transmission rod 53 are both rotatably connected to the limit plate 54. The outer surface of the limit plate 54 is fixedly connected to the fixed frame 1. The front and rear ends of the transmission rod 55 are rotatably connected to the connecting frame 4. The outer surfaces of the transmission rod 53 and the transmission rod 55 are both in contact with the transmission belt 6.

[0058] The outer surface of the bidirectional stepping motor 1 51 is in contact with a belt 1, and the transmission rod 2 55 is connected to the bidirectional stepping motor 1 51 through the belt 1 transmission.

[0059] A bidirectional stepper motor 21 is fixedly installed on the top of the fixing frame 2 located at the central axis, and a top rod is rotatably connected to the top of the fixing frame 2 located at the front and back. A placement frame 22 is fixedly connected to the outer surface of the bidirectional stepper motor 21, and the bottom of the placement frame 22 is fixedly connected to the top of the fixing frame 2 located at the central axis. A large gear 23 is threadedly connected to the top output end of the bidirectional stepper motor 21, and a rotating wheel 1 is fixedly connected to the top output end surface and the bottom output end of the bidirectional stepper motor 21;

[0060] The top of the top rod is fixedly connected with a rotating wheel 2, the bottom of the fixing frame 2 located at the front and back is rotatably connected with a bottom rod, the bottom of the bottom rod is fixedly connected with a rotating wheel 3, the outer surfaces of the rotating wheel 1 and the rotating wheel 2 located at the top are sleeved with a belt 24, the outer surfaces of the rotating wheel 1 and the rotating wheel 3 located at the bottom are sleeved with a belt 3 25, the bottom output end of the two-way stepping motor 21 and the outer surface of the bottom rod are respectively sleeved with a belt 4 26, the top of the belt 4 26 contacts a limiting ring 27, the limiting ring 27 located at the central axis is fixedly connected to the outer wall of the bottom output end of the two-way stepping motor 21, the limiting ring 27 located at the front and back is fixedly connected to the outer surface of the bottom rod, and the top of the top rod is threadedly connected with a small gear 28.

[0061] The bottom of the fixed frame 2 is annularly fixedly connected with a limited bottom block, the limited bottom block is arc-shaped, the inner surface of the limited bottom block is in contact with the outer surface and the bottom of the screening box 3 respectively, the central axis rod 32 located at the central axis is connected to the bottom output end of the two-way stepping motor 21 through the belt four 26 located at the central axis, and the central axis rod 32 located at the front and back sides are connected through the belt four 26 located at the front and back sides;

[0062] The large gear 23 meshes with the gear teeth 31 located at the center axis, and the two small gears 28 mesh with the gear teeth 31 located at the front and back sides respectively.

[0063] A collar is sleeved on the upper end of the outer surface of the screening box 3, and a fixing bar 301 is fixedly connected to the top and bottom of the collar. A through groove is provided at the upper end of the fixing bar 301, and a round rod 302 is slidably connected inside the through groove. A triangular block 303 is fixedly connected to the outer surface of the round rod 302. A square block 304 is provided on the outer side of the collar, and a T-shaped rod 305 is slidably connected inside the square block 304. One end of the T-shaped rod 305 is fixedly connected to a spring, and the other end of the T-shaped rod 305 passes through the square block 304 and is fixedly connected to the triangular block 303.

[0064] A clamping rod 306 is fixedly connected to one side of the square block 304 close to the collar, a square groove is provided on the top of the screening box 3, a square bar 351 is slidably connected in the square groove, a tripod 352 is fixedly connected to the top of the three square bars 351, the inner surface of the square bar 351 is fixedly connected to the outer surface of the special-shaped inclined plate 35, a clamping groove 1 is provided on one side of the six square bars 351 away from each other, and one end of the clamping rod 306 away from the square block 304 passes through the collar and is clamped in the clamping groove 1.

[0065] There is a certain gap between the top of the strong magnetic suction plate 36 and the bottom of the annular baffle 33 at the bottom. A right-angle long plate 361 is fixedly connected to the top of the strong magnetic suction plate 36. One end of the right-angle long plate 361 away from the central axis rod 32 is in contact with the inner surface of the screening box 3. A fixed shaft 362 is fixedly connected to the left side of the bottom of the strong magnetic suction plate 36 at the top, and an auxiliary suction plate 363 is fixedly connected to the bottom of the fixed shaft 362.

[0066] A card slot 2 and a card slot 3 are respectively provided on the left and right sides of the lower end of the inner wall of the screening box 3, and a card block 2 is clamped inside the card slot 2 and the card slot 3. The top of the card block 2 located inside the card slot 2 is clamped with the bottom of the strong magnetic suction plate 36, and the top of the card block 3 located inside the card slot 3 is clamped with the bottom of the auxiliary suction plate 363.

[0067] A first air groove is provided inside the central axis rod 32, a moving block 364 is sealed inside the first air groove, a second air groove is provided above the first air groove, a clamping block four 365 is sealed inside the second air groove, a clamping groove four is provided on the inner surface of the strong magnetic suction plate 36 at the upper end, the outer surface of the clamping block four 365 is in contact with the inner surface of the clamping groove four, a threaded long rod 366 is rotatably connected to the bottom of the moving block 364, the bottom of the threaded long rod 366 passes through the first air groove and extends to the outside, the threaded long rod 366 is threadedly connected to the central axis rod 32, and the first air groove and the second air groove are connected through the air hole.

[0068] A construction waste recycling device that is convenient for screening, and a method for using the construction waste recycling device, comprising the following steps:

[0069] Step 1: The staff starts the bidirectional stepper motor 1 51 and the bidirectional stepper motor 2 21 at the same time. The bidirectional stepper motor 1 51 transmits the rotational force to the transmission rod 2 55 located on the left side through the belt 1. The transmission rod 2 55 starts to rotate and transmits with the transmission belt 6;

[0070] Step 2: The bidirectional stepper motor 21 drives the large gear 23 at the top and the rotating wheel 1 at the bottom to rotate at the same time. The rotating wheel 1 at the top transmits the rotating force to the top rod through the belt 24. At this time, the large gear 23 and the small gear 28 drive the screening box 3 to rotate through the gear teeth 31. The rotating wheel 1 at the bottom drives the rotating wheel 2 and the bottom rod to rotate through the belt 3 25. The bottom output end and the bottom rod of the bidirectional stepper motor 21 drive the middle shaft rod 32 to rotate through the belt 4 26. At this time, the middle shaft rod 32 and the screening box 3 rotate in opposite directions. Then the staff evenly puts the crushed construction waste that needs to be screened into the screening box 3. The thread settings of the large gear 23 and the small gear 28 are the same, and the rotation direction of the large gear 23 and the small gear 28 is the direction of tightening the thread.

[0071] Step 3: The construction waste put into the screening box 3 will slide downward under the influence of gravity. Due to the influence of the square bar 351, the screening box 3 will rotate with the special-shaped inclined plate 35 when rotating, so as to break up the construction waste piled up in the screening box 3. When the special-shaped inclined plate 35 needs to be replaced, the staff will pull the triangular block 303 outward, and the triangular block 303 will move in the through groove of the fixed bar 301 with the round bar 302. The T-shaped bar 305 located inside the square block 304 will also move outward under the influence of the movement of the triangular block 303. The clamping rod 306 will be separated from the square bar 351 as the square block 304 moves. At this time, the square bar 351 and the special-shaped inclined plate 35 lose the position limitation of the clamping rod 306, and the staff can take it out of the screening box 3.

[0072] Step 4: The central axis rod 32 rotates with the fixing ring 371, and the fixing ring 371 rotates with the fixing rod 1 372 and the fixing rod 2 373 following the central axis rod 32, and the fixing rod 2 373 moves with the connecting block 1 383 and the clamping block 1 384 in the wavy annular groove. Due to the influence of the wavy annular groove, the fixing rod 2 373 will continuously perform telescopic movement inside the fixing rod 1 372, and the arc frame 376 and the arc rod 377 will rotate with the fixing rod 1 372. Because the special-shaped sweeping plate 381 is connected to the arc frame 376 through the positioning frame 380, when the arc frame 376 moves, the special-shaped sweeping plate 381 will also move accordingly, and the positioning frame 380 is connected to the outer side of the arc frame 376 by the square groove, and at the same time, the outer surface of the special-shaped sweeping plate 381 contacts the inner wall of the screening box 3, so the construction waste can also be scattered;

[0073] Step 5: The strong magnetic suction plates 36 at the top and at the bottom rotate in opposite directions. Due to the special shape setting of the strong magnetic suction plate 36, the construction waste can only slide down from the specific notch on the strong magnetic suction plate 36. The right-angled long plate 361 at the top of the strong magnetic suction plate 36 will take away a part of the accumulated construction waste. When the right-angled long plate 361 rotates to a higher position, the non-iron-containing substances will fall by gravity, and the iron-containing substances will be adsorbed on the strong magnetic suction plate 36. The construction waste entering the bottom through the notch will contact the auxiliary suction plate 363, and the auxiliary suction plate 363 will also leave the iron-containing substances. The strong magnetic suction plate 36 located below and rotating with the screening box 3 will also perform the same work. The construction waste after two screenings will fall on the top of the conveyor belt 6;

[0074] Step six: when it is necessary to remove the strong magnetic suction plate 36, the staff first uses the two-way stepper motor 21 to loosen the large gear 23 and the small gear 28. As the two are removed, the screening box 3 can be taken out from the fixed frame 2. At this time, the strong magnetic suction plate 36 at the bottom must be removed first. The staff can directly remove the block 3 used to fix the bottom strong magnetic suction plate 36 and the auxiliary suction plate 363 to remove the strong magnetic suction plate 36 at the bottom. Then the staff rotates the threaded long rod 366 at the bottom of the central axis rod 32, and the moving block 364 moves downward with the threaded long rod 366. The air inside the second air groove enters the first air groove through the air hole, and the block 4 365 used to fix the strong magnetic suction plate 36 at the top enters the second air groove under the attraction of negative pressure. The strong magnetic suction plate 36 at the top can also be removed after losing its limitation.

[0075] When in use, the staff starts the bidirectional stepper motor 1 51 and the bidirectional stepper motor 2 21 at the same time, and the bidirectional stepper motor 1 51 transmits the rotational force to the transmission rod 2 55 located on the left side through the belt 1, and the transmission rod 2 55 starts to rotate and drives with the conveyor belt 6, so as to achieve the function of transporting and transferring the fallen construction waste, and avoid pushing too much construction waste under the screening box 3, thereby affecting the strong magnetic suction plate 36 located at the bottom to attract the iron-containing substances;

[0076] The bidirectional stepper motor 21 rotates the large gear 23 at the top and the wheel 1 at the bottom at the same time. The wheel 1 at the top transmits the rotational force to the top rod through the belt 24. At this time, the large gear 23 and the small gear 28 rotate the screening box 3 through the gear teeth 31. The wheel 1 at the bottom rotates the wheel 2 and the bottom rod through the belt 3 25. The bottom output end and the bottom rod of the bidirectional stepper motor 21 rotate the middle shaft rod 32 through the belt 4 26. At this time, the middle shaft rod 32 and the screening box 3 rotate in opposite directions. Then the staff evenly puts the crushed construction waste that needs to be screened into the screening box 3. The thread settings of the large gear 23 and the small gear 28 are the same, and the rotation direction of the large gear 23 and the small gear 28 is the direction of tightening the thread.

[0077] The construction waste put into the screening box 3 will slide downward under the influence of gravity. Due to the influence of the square bar 351, the screening box 3 will rotate with the special-shaped inclined plate 35 when it rotates, which can break up the construction waste piled up in the screening box 3 so that it can flow downward in batches, reducing the working pressure of the rotating material dividing component 37 and withstanding the impact force of the construction waste when it is put in. When it is necessary to replace the special-shaped inclined plate 35, the staff will pull the triangular block 303 outward, and the triangular block 303 will move in the through groove of the fixed bar 301 with the round bar 302. The T-shaped bar 305 located inside the square block 304 will also move outward under the influence of the movement of the triangular block 303. The clamping rod 306 will be separated from the square bar 351 as the square block 304 moves. At this time, the square bar 351 and the special-shaped inclined plate 35 lose the position limit of the clamping rod 306, and the staff can take it out of the screening box 3 for maintenance and cleaning.

[0078] The central axis rod 32 rotates with the fixing ring 371, and the fixing ring 371 rotates with the fixing rod 1 372 and the fixing rod 2 373 following the central axis rod 32, and the fixing rod 2 373 moves with the connecting block 1 383 and the clamping block 1 384 in the wavy annular groove. Due to the influence of the wavy annular groove, the fixing rod 2 373 will continuously perform telescopic movement inside the fixing rod 1 372, and the arc frame 376 and the arc rod 377 will rotate with the fixing rod 1 372. Because the special-shaped sweeping plate 381 is connected to the arc frame 376 through the positioning frame 380, when the arc frame 376 moves, the special-shaped sweeping plate 381 will also move accordingly, and the positioning frame 380 is connected to the outer side of the arc frame 376 by the square groove. At the same time, the outer surface of the special-shaped sweeping plate 381 contacts the inner wall of the screening box 3, so that the construction waste can also be scattered, so that the construction waste can fall in batches, so that the strong magnetic suction plate 36 can better screen out the iron-containing substances in the construction waste;

[0079] The strong magnetic suction plates 36 at the top and at the bottom rotate in opposite directions. Because of the special shape setting of the strong magnetic suction plate 36, the construction waste can only slide down from the specific notch on the strong magnetic suction plate 36. The right-angled long plate 361 at the top of the strong magnetic suction plate 36 will take away a part of the accumulated construction waste. When the right-angled long plate 361 rotates to a higher position, the non-iron-containing substances will fall by gravity, and the iron-containing substances will be adsorbed on the strong magnetic suction plate 36. The construction waste entering the bottom through the notch will contact the auxiliary suction plate 363, and the auxiliary suction plate 363 will also leave the iron-containing substances, so as to achieve the effect of screening the construction waste. The strong magnetic suction plate 36 located below and rotating with the screening box 3 will also perform the same work. After two screenings, the construction waste will fall on the top of the conveyor belt 6. Relying on the two screenings, most of the iron-containing substances can be screened out, thereby improving the screening effect.

[0080] When it is necessary to remove the strong magnetic suction plate 36, the staff first uses the two-way stepper motor 21 to loosen the large gear 23 and the small gear 28. As the two are removed, the screening box 3 can be taken out from the fixed frame 2. At this time, the strong magnetic suction plate 36 at the bottom must be removed first. The staff can directly remove the block 3 used to fix the bottom strong magnetic suction plate 36 and the auxiliary suction plate 363 to remove the strong magnetic suction plate 36 at the bottom. Then the staff rotates the threaded long rod 366 at the bottom of the central axis rod 32, and the moving block 364 moves downward with the threaded long rod 366. The air inside the second air groove enters the first air groove through the air hole, and the block 4 365 used to fix the strong magnetic suction plate 36 at the top enters the second air groove under the attraction of negative pressure. The strong magnetic suction plate 36 at the top can also be removed after it loses its limitation.

[0081] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A construction waste recycling device that is convenient for screening, comprising a fixed frame (1), a fixed frame (2) being laterally fixedly connected inside the fixed frame (1), a placement slot being provided inside the fixed frame (2), the placement slot being set at a 45-degree inclination angle, a screening box (3) being placed inside the placement slot, a connecting frame (4) being fixedly connected at the lower left end of the fixed frame (1), and a fixed plate (5) being fixedly connected at the left bottom of the inner wall of the fixed frame (1), characterized in that: The outer surface of the screening box (3) is fixedly connected with gear teeth (31), a central axis rod (32) is arranged at the central axis inside the screening box (3), a rotating material distribution component (37) is arranged outside the central axis rod (32), and a wavy annular groove is respectively formed at the upper end and the lower end inside the screening box (3); The rotating material distribution assembly (37) comprises a fixing ring (371) fixedly connected to the outside of the central shaft (32); the top and bottom of the fixing ring (371) are both rotatably connected to a fixing rod 1 (372); a fixing rod 2 (373) is slidably connected inside the fixing rod 1 (372); a side of the fixing rod 2 (373) away from the fixing ring (371) passes through the fixing rod 1 (372) and extends to the outside; an end of the fixing rod 2 (373) away from the fixing rod 1 (372) is rotatably connected to a connecting block 1 (383); An arc plate (382) is slidably connected inside the wavy annular groove, a sliding groove is provided on the inner surface of the arc plate (382), a positioning rod is vertically fixedly connected inside the sliding groove, the connecting block 1 (383) is slidably connected to the outer surface of the positioning rod, and the outer surface of one end of the connecting block 1 (383) away from the fixing rod 2 (373) contacts the inner wall of the sliding groove; The bottom surface of the fixing rod 1 (372) at the bottom contacts with a long strip block 1 (374), and the top surface of the fixing rod 1 (372) at the top contacts with a long strip block 2 (379). The sides of the long strip block 1 (374) and the long strip block 2 (379) close to each other are fixedly connected with a clamping block 1 (384). The sides of the fixing rod 1 (372) and the fixing rod 2 (373) away from each other are both provided with a sliding groove, and the outer surface of the clamping block 1 (384) contacts with the inner wall of the sliding groove. The top surface of the fixed rod 1 (372) at the bottom contacts with an arc frame (376), the arc frame (376) is slidably connected with an arc rod (377) inside, the top end of the arc rod (377) contacts with the bottom surface of the fixed rod 2 (373) at the top, the arc frame (376) and the arc rod (377) are fixedly connected with a rotating shaft at one end away from each other, the left and right end surfaces of the rotating shaft at the bottom are rotatably connected with a connecting plate 1 (375), and the left and right end surfaces of the rotating shaft at the top are rotatably connected with a connecting plate 2 (378); One end of the connecting plate 1 (375) away from the arc frame (376) is rotatably connected to the long strip block 1 (374), one end of the connecting plate 2 (378) away from the arc rod (377) is rotatably connected to the long strip block 2 (379), a spring 1 is provided inside the fixing rod 1 (372), one end of the spring 1 is fixedly connected to the inner wall of the fixing rod 1 (372), and the other end of the spring 1 is fixedly connected to the fixing rod 2 (373); The back of the arc frame (376) contacts with a special-shaped sweeping plate (381), the outer surface of the special-shaped sweeping plate (381) contacts with the inner wall of the screening box (3), the front center axis of the special-shaped sweeping plate (381) is fixedly connected with a positioning frame (380), the positioning frame (380) has a square groove inside, and the inner wall of the square groove contacts with the surface of the arc frame (376); The upper and lower ends of the inner wall of the screening box (3) are respectively in contact with an annular baffle (33), the position of the annular baffle (33) corresponds to the position of the wavy annular groove, and a special-shaped inclined plate (35) is arranged in an annular shape on the inner surface of the annular baffle (33) at the top, and the sides of the six special-shaped inclined plates (35) close to each other at the bottom are in contact with the outer surface of the central axis rod (32), and the sides of the six special-shaped inclined plates (35) away from each other at the top are in contact with the inner wall of the screening box (3), and a strong magnetic attraction plate (36) is arranged below the annular baffle (33) at the bottom, and an opening is opened on the inner surface of the annular baffle (33), and the inner surface of the opening is fixedly connected to the outer surface of the connecting block (383).

2. A construction waste recycling device that is convenient for screening according to claim 1, characterized in that: A bidirectional stepper motor 1 (51) is fixedly connected to the middle axis of the top of the fixed plate (5); an output end of the bidirectional stepper motor 1 (51) is rotatably connected to a docking plate (52); a bottom of the docking plate (52) is fixedly connected to the top of the fixed plate (5); a transmission rod 1 (53) and a transmission rod 2 (55) are respectively arranged on the left and right sides of the bidirectional stepper motor 1 (51); front and rear end outer surfaces of the transmission rod 1 (53) are rotatably connected to a limit plate (54); an outer surface of the limit plate (54) is fixedly connected to the fixed frame (1); a front and rear end of the transmission rod 2 (55) are rotatably connected to a connecting frame (4); and outer surfaces of the transmission rod 1 (53) and the transmission rod 2 (55) are both in contact with a transmission belt (6); The outer surface of the bidirectional stepping motor 1 (51) is in contact with a belt 1, and the transmission rod 2 (55) is connected to the bidirectional stepping motor 1 (51) through the belt 1.

3. A construction waste recycling device that is convenient for screening according to claim 2, characterized in that: A second bidirectional stepping motor (21) is fixedly mounted on the top of the fixing frame (2) located at the central axis, a top rod is rotatably connected to the top of the fixing frame (2) located at the front and back sides, a placement frame (22) is fixedly connected to the outer surface of the second bidirectional stepping motor (21), the bottom of the placement frame (22) is fixedly connected to the top of the fixing frame (2) located at the central axis, a large gear (23) is threadedly connected to the top output end of the second bidirectional stepping motor (21), and a rotating wheel (1) is fixedly connected to the top output end surface and the bottom output end of the second bidirectional stepping motor (21); The top of the top rod is fixedly connected to a rotating wheel 2, the bottom of the fixing frame (2) located at the front and back sides is rotatably connected to a bottom rod, the bottom of the bottom rod is fixedly connected to a rotating wheel 3, the outer surfaces of the rotating wheel 1 and the rotating wheel 2 located at the top are sleeved with a belt 2 (24), the outer surfaces of the rotating wheel 1 and the rotating wheel 3 located at the bottom are sleeved with a belt 3 (25), the bottom output end of the two-way stepping motor 2 (21) and the outer surface of the bottom rod are respectively sleeved with a belt 4 (26), the top of the belt 4 (26) contacts a limiting ring (27), the limiting ring (27) located at the middle axis is fixedly connected to the outer wall of the bottom output end of the two-way stepping motor 2 (21), the limiting ring (27) located at the front and back sides is fixedly connected to the outer surface of the bottom rod, and the top of the top rod is threadedly connected to a small gear (28).

4. The construction waste recycling device that is convenient for screening according to claim 3 is characterized by: The bottom of the fixing frame (2) is annularly fixedly connected to a limit bottom block, the limit bottom block is arc-shaped, the inner surface of the limit bottom block is in contact with the outer surface and the bottom of the screening box (3), the central axis rod (32) located at the central axis is connected to the bottom output end of the two-way stepping motor (21) through the belt four (26) located at the central axis, and the central axis rod (32) located at the front and back sides are connected through the belt four (26) located at the front and back sides; The large gear (23) meshes with the gear teeth (31) located at the central axis, and the two small gears (28) mesh with the gear teeth (31) located at the front and back sides respectively.

5. The construction waste recycling device that is convenient for screening according to claim 4 is characterized by: The upper end of the outer surface of the screening box (3) is sleeved with a collar, and the top and bottom of the collar are fixedly connected to a fixing bar (301), and the upper end of the fixing bar (301) is provided with a through slot, and a round rod (302) is slidably connected inside the through slot, and a triangular block (303) is fixedly connected to the outer surface of the round rod (302), and a square block (304) is arranged outside the collar, and a T-shaped rod (305) is slidably connected inside the square block (304), and one end of the T-shaped rod (305) is fixedly connected to a spring, and the other end of the T-shaped rod (305) passes through the square block (304) and is fixedly connected to the triangular block (303); A clamping rod (306) is fixedly connected to a side of the square block (304) close to the collar, a square groove is provided on the top of the screening box (3), a square bar (351) is slidably connected in the square groove, a tripod (352) is fixedly connected to the tops of three square bars (351), the inner surfaces of the square bars (351) are fixedly connected to the outer surface of the special-shaped inclined plate (35), a clamping groove 1 is provided on a side of the six square bars (351) away from each other, and an end of the clamping rod (306) away from the square block (304) passes through the collar and is clamped to the clamping groove 1.

6. The construction waste recycling device that is convenient for screening according to claim 5 is characterized by: There is a certain gap between the top of the strong magnetic suction plate (36) and the bottom of the annular baffle (33) located at the bottom, the top of the strong magnetic suction plate (36) is fixedly connected to a right-angled long plate (361), one end of the right-angled long plate (361) away from the central axis rod (32) is in contact with the inner surface of the screening box (3), the left side of the bottom of the strong magnetic suction plate (36) located at the top is fixedly connected to a fixed shaft (362), and the bottom of the fixed shaft (362) is fixedly connected to an auxiliary suction plate (363); A second card slot and a third card slot are respectively provided on the left and right sides of the lower end of the inner wall of the screening box (3), and a second card slot is clamped inside each of the second card slot and the third card slot. The top of the second card slot located inside the second card slot is clamped with the bottom of the strong magnetic suction plate (36), and the top of the third card slot located inside the third card slot is clamped with the bottom of the auxiliary suction plate (363).

7. The construction waste recycling device that is convenient for screening according to claim 6 is characterized by: A first air groove is provided inside the central axis rod (32), a moving block (364) is sealed inside the first air groove, a second air groove is provided above the first air groove, a clamping block four (365) is sealed inside the second air groove, a clamping groove four is provided on the inner surface of the strong magnetic attraction plate (36) at the upper end, the outer surface of the clamping block four (365) is in contact with the inner surface of the clamping groove four, a threaded long rod (366) is rotatably connected to the bottom of the moving block (364), the bottom of the threaded long rod (366) passes through the first air groove and extends to the outside, the threaded long rod (366) is threadedly connected to the central axis rod (32), and the first air groove and the second air groove are connected through air holes.

8. According to claim 7, a construction waste recycling device that is convenient for screening, the method for using the construction waste recycling device comprises the following steps, characterized in that: Step 1: The staff starts the bidirectional stepper motor 1 (51) and the bidirectional stepper motor 2 (21) at the same time. The bidirectional stepper motor 1 (51) transmits the rotational force to the transmission rod 2 (55) located on the left side through the belt 1. The transmission rod 2 (55) starts to rotate and transmits with the transmission belt (6). Step 2: The bidirectional stepper motor 2 (21) drives the large gear (23) at the top and the rotating wheel 1 at the bottom to rotate at the same time. The rotating wheel 1 at the top transmits the rotational force to the top rod through the belt 2 (24). At this time, the large gear (23) and the small gear (28) drive the screening box (3) to rotate through the gear teeth (31). The rotating wheel 1 at the bottom drives the rotating wheel 2 and the bottom rod to rotate through the belt 3 (25). The bottom output end of the bidirectional stepper motor 2 (21) and the bottom rod drive the middle shaft rod (32) to rotate through the belt 4 (26). At this time, the middle shaft rod (32) and the screening box (3) rotate in opposite directions. Then, the staff evenly puts the crushed construction waste to be screened into the screening box (3). The thread settings of the large gear (23) and the small gear (28) are the same and the rotation direction of the large gear (23) and the small gear (28) is the direction of tightening the thread. Step 3: The construction waste put into the screening box (3) will slide downward under the influence of gravity. Due to the influence of the square bar (351), the screening box (3) will rotate with the special-shaped inclined plate (35), so that the construction waste accumulated in the screening box (3) can be scattered. When the special-shaped inclined plate (35) needs to be replaced, the staff will pull the triangular block (303) outward, and the triangular block (303) will move with the round rod (302) in the through groove of the fixing bar (301). The T-shaped rod (305) located inside the square block (304) will also move outward under the influence of the movement of the triangular block (303). The clamping rod (306) will be separated from the square bar (351) as the square block (304) moves. At this time, the square bar (351) and the special-shaped inclined plate (35) lose the position limit of the clamping rod (306), and the staff can take them out of the screening box (3); Step 4: The central axis rod (32) rotates with the fixing ring (371), and the fixing ring (371) rotates with the fixing rod 1 (372) and the fixing rod 2 (373) following the central axis rod (32). The fixing rod 2 (373) moves with the connecting block 1 (383) and the clamping block 1 (384) in the wavy ring groove. Due to the influence of the wavy ring groove, the fixing rod 2 (373) will continuously perform telescopic movement inside the fixing rod 1 (372), and the arc frame (376) and the arc rod (377) will rotate along with the fixing rod (372). Since the special-shaped sweeping plate (381) is connected to the arc frame (376) through the positioning frame (380), when the arc frame (376) moves, the special-shaped sweeping plate (381) will also move accordingly. In addition, the positioning frame (380) is connected to the outer side of the arc frame (376) by means of the square groove. At the same time, the outer surface of the special-shaped sweeping plate (381) contacts the inner wall of the screening box (3), so that the construction waste can also be dispersed. Step 5: The strong magnetic suction plates (36) at the top and at the bottom rotate in opposite directions. Due to the special shape setting of the strong magnetic suction plate (36), the construction waste can only slide down from the specific notch on the strong magnetic suction plate (36). The right-angled long plate (361) at the top of the strong magnetic suction plate (36) will take away a part of the accumulated construction waste. When the right-angled long plate (361) rotates to a higher position, the non-iron-containing substances will fall by gravity, and the iron-containing substances will be adsorbed on the strong magnetic suction plate (36). The construction waste entering the bottom through the notch will contact the auxiliary suction plate (363), and the auxiliary suction plate (363) will also leave the iron-containing substances. The strong magnetic suction plate (36) located below and rotating with the screening box (3) will also perform the same work. After two screenings, the construction waste will fall on the top of the conveyor belt (6); Step 6: When it is necessary to remove the strong magnetic suction plate (36), the staff first uses the two-way stepper motor 2 (21) to loosen the large gear (23) and the small gear (28). As the two are removed, the screening box (3) can be taken out from the fixing frame (2). At this time, the strong magnetic suction plate (36) at the bottom must be removed first. The staff directly removes the block 3 used to fix the bottom strong magnetic suction plate (36) and the auxiliary suction plate (363) to remove the strong magnetic suction plate (36) at the bottom. Then the staff rotates the threaded long rod (366) at the bottom of the central axis rod (32), and the moving block (364) moves downward with the threaded long rod (366). The air inside the second air groove enters the first air groove through the air hole. The block 4 (365) used to fix the strong magnetic suction plate (36) at the top enters the second air groove under the attraction of negative pressure. The strong magnetic suction plate (36) at the top can also be removed after it loses its limitation.

Images