CN113457783A

CN113457783A - Construction waste recovery device for building construction and recovery method thereof

Info

Publication number: CN113457783A
Application number: CN202110777301.5A
Authority: CN
Inventors: 彭彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-09
Filing date: 2021-07-09
Publication date: 2021-10-01

Abstract

The invention discloses a construction waste recovery device for building construction and a recovery method thereof, and the device comprises a recovery box and a feeding mechanism, wherein the feeding mechanism consists of a U-shaped feeding box and two lifting baffles, the bottom end of the U-shaped feeding box is fixedly connected with the bottom end of the recovery box, a feeding cavity is formed in the U-shaped feeding box and communicated with a crushing cavity, two movable grooves are formed in the bottom end of the inner wall of the feeding cavity, the outer walls of the two lifting baffles are respectively connected with the inner walls of the movable grooves at corresponding positions in a sliding manner, and the top ends of the two lifting baffles are fixedly connected with a first connecting plate. According to the invention, by utilizing the arrangement of the U-shaped feeding box, the lifting baffle and the hydraulic cylinder and the cooperation of the dust blocking mechanism, when intermittent feeding is carried out, the hydraulic cylinder drives the lifting baffle to descend to block dust in the crushing cavity, and when the dust blocking mechanism is opened for feeding, the dust is prevented from floating out during feeding, feeding workers are prevented from contacting with the dust, and the use safety of the recovery device is improved.

Description

Construction waste recovery device for building construction and recovery method thereof

Technical Field

The invention relates to the field of building construction, in particular to a building garbage recycling device for building construction and a recycling method thereof.

Background

The building construction refers to production activities in the engineering construction implementation stage, is the construction process of various buildings, and also can be a process of changing various lines on a design drawing into a real object at a specified place. The construction waste refers to residue soil, waste materials, sludge and other wastes generated in the process of construction, laying or dismantling and repairing of various buildings, structures, pipe networks and the like during construction.

Building rubbish is cubic, in order to facilitate recovery and transportation, all can smash building rubbish through the rubbing crusher in the recovery unit earlier, thereby be convenient for deposit and transport, thereby can be provided with the baffle at recovery unit's feed inlet and stop the dust that produces when smashing, prevent that the dust from being inhaled by the pay-off workman and threaten healthily, but building rubbish when rubbing crusher constructs to smash, it is one batch that to carry out kibbling, thereby need pay-off workman intermittent type to send into building rubbish to recovery unit, need open the baffle when sending into building rubbish and just can carry out the pay-off, dust in the recovery unit just comes out through the feed inlet when opening, thereby lead to the pay-off workman to inhale in with the contact of pay-off workman, cause the threat to the healthy of pay-off workman, the security that recovery unit used has been reduced.

Disclosure of Invention

The invention aims to provide a construction waste recycling device for building construction, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a construction waste recovery device for construction includes:

the recycling bin is internally provided with a crushing cavity;

the feeding mechanism consists of a U-shaped feeding box and two lifting baffles, the bottom end of the U-shaped feeding box is fixedly connected with the bottom end of the recovery box, a feeding cavity is arranged inside the U-shaped feeding box and is communicated with the crushing cavity, two movable grooves are arranged at the bottom end of the inner wall of the feeding cavity, the outer walls of the two lifting baffles are respectively and slidably connected with the inner walls of the movable grooves at corresponding positions, the top ends of the two lifting baffles penetrate through the inner parts of the movable grooves at corresponding positions and are fixedly connected with first connecting plates, a second connecting plate is fixedly connected between the two end parts of the U-shaped feeding box, a hydraulic cylinder is fixedly arranged in the middle of the bottom end of the second connecting plate, the output end of the hydraulic cylinder is in transmission connection with the middle part of the top end of the first connecting plate, and two openings at the top end of the feeding cavity are provided with dust blocking mechanisms;

the crushing mechanism is arranged inside the crushing cavity;

and the recovery mechanism is arranged below the crushing mechanism.

Preferably, the dust blocking mechanism includes two rotating baffle, two the equal activity of rotating baffle sets up in the inside in feeding chamber, two commentaries on classics holes, four have been seted up to the equal symmetry in both sides of the inner wall in feeding chamber the inner wall in commentaries on classics hole all rotates and is provided with first pivot, four the one end of first pivot is respectively with one side fixed connection of corresponding position department rotating baffle, four the outer wall of first pivot all overlaps and is equipped with the torsional spring, four the one end of torsional spring respectively with the outer wall fixed connection of the first pivot of corresponding position department, four the other end of torsional spring is respectively with the inner wall fixed connection in corresponding position department commentaries on classics hole.

Preferably, the top of feeding intracavity wall and two positions that are located two activity grooves all paste and are equipped with the sheet rubber, the equal fixedly connected with spacing strip in the top that just is located corresponding position department rotating baffle of front and the back of feeding intracavity wall.

Preferably, rubbing crusher constructs including two crushing rollers, the inner wall in crushing chamber rotates and is connected with two first bull sticks, two the outer wall of the first bull stick of corresponding position department is located to the crushing roller cover respectively, two the inner wall in crushing chamber is all run through to the one end of first bull stick and the cover is equipped with the gear, two gear engagement connects, rubbing crusher constructs's below is provided with grinds the mechanism.

Preferably, grind the mechanism including grinding the chamber and grinding the roller, grind the chamber and offer the bottom of smashing the intracavity wall, the inner wall in grinding the chamber rotates and is connected with the second bull stick, grind the outer wall that the second bull stick was located to the fixed cover of roller, be provided with link gear between rubbing crusher structure and the grinding mechanism.

Preferably, the link gear includes first belt roller, second belt roller and driving belt, driving belt's inner wall is connected with the outer wall transmission of first belt roller and second belt roller respectively, the one end of second bull stick runs through the inner wall of grinding the chamber and is connected with the inner wall fixed interlude of second belt roller, the outer wall of one of them first bull stick is located to the fixed cover of first belt roller, the back fixedly connected with mount pad of collection box, the top fixed mounting of mount pad has servo motor, servo motor's output shaft is connected with the one end transmission of second bull stick.

Preferably, retrieve the mechanism and include first rectangle frame and second rectangle frame, the recovery chamber has been seted up to the inside of collection box, it is linked together with the grinding chamber to retrieve the chamber, first rectangle frame and second rectangle frame all slide to set up in the inside of retrieving the chamber, the internally mounted of first rectangle frame has the filter screen, fixedly connected with third connecting plate between first rectangle frame and the second rectangle frame, the bottom of retrieving the intracavity wall is provided with first recovery basket and second recovery basket.

Preferably, the inner wall of the recycling cavity is symmetrically and fixedly connected with two first fixed blocks and two second fixed blocks, one side of the second rectangular frame is slidably arranged between one of the first fixed blocks and the second fixed block, and one side of the first rectangular frame is slidably arranged between the other one of the first fixed blocks and the second fixed block.

Preferably, the front of collection box just is located the front position department that retrieves the chamber and articulates there is sealing door, the positive one side fixedly connected with L type handle of sealing door, the front of collection box is rotated and is connected with the second pivot, the outer wall fixedly connected with rotation locking lever of second pivot.

The invention also provides a construction waste recovery method for building construction, which comprises the following specific use steps:

the method comprises the following steps: the construction waste is placed at the bottom end of the rotating baffle plate, the rotating baffle plate is extruded by the gravity of the construction waste, the torsion spring is compressed, the rotating baffle plate rotates around the first rotating shaft, so that the construction waste on the rotating baffle plate slides into the feeding cavity, the construction waste is accumulated in the feeding cavity due to the blocking of the lifting baffle plate, after the construction waste is accumulated to a certain degree, the rotating baffle plate is reset under the action of the torsion spring after being extruded, a contraction switch of the hydraulic cylinder is opened, the output end of the hydraulic cylinder drives the first connecting plate to ascend, the first connecting plate ascends to drive the two lifting baffle plates to ascend, so that the lifting baffle plate does not block the construction waste in the feeding cavity any more, and the construction waste slides to the crushing cavity;

step two: the switch of the servo motor is turned on, an output shaft of the servo motor drives the second rotating rod to rotate clockwise, so that the grinding roller 21 rotates clockwise along with the second rotating rod synchronously, meanwhile, the second rotating rod rotates clockwise, the second belt roller is driven to rotate synchronously, the second belt roller rotates and simultaneously drives the first belt roller to rotate through the transmission belt, the first belt roller rotates and simultaneously rotates synchronously with the first rotating rod connected with the first belt roller, under the meshing of the two gears, the two gears rotate relatively, so that the two first rotating rods rotate relatively, so that the two grinding rollers rotate synchronously, the construction waste falling into the grinding cavity is ground while rotating, the ground construction waste falls into the grinding cavity, the ground grinding roller grinds further, and the ground construction waste falls into the recovery cavity;

step three: the construction waste falling into the recovery cavity falls into a filter screen in a first rectangular frame, the ground small-particle construction waste falls into a first recovery basket through filter holes in the filter screen, and the large-particle construction waste slides to a second rectangular frame at the top end of the filter screen and falls into the second recovery basket through the second rectangular frame;

step four: and opening an extension switch of the hydraulic cylinder to enable an output shaft of the hydraulic cylinder to extend to drive the second connecting plate to descend, and the second connecting plate descends to drive the two lifting baffles to descend and reset, so that the construction waste can be continuously thrown into the feeding cavity to be crushed next.

The invention has the technical effects and advantages that:

(1) according to the invention, by utilizing the arrangement of the U-shaped feeding box, the lifting baffle and the hydraulic cylinder and through the cooperation of the dust blocking mechanism, when intermittent feeding is carried out, the hydraulic cylinder drives the lifting baffle to descend to block dust in the crushing cavity, when the dust blocking mechanism is opened to carry out feeding, the dust is prevented from floating out during feeding, after the feeding is finished, the dust blocking mechanism is closed, and the construction waste enters the crushing cavity to be crushed, so that no dust floats out in the crushing process and the feeding process, the feeding worker is prevented from contacting with the dust, and the use safety of the recovery device is improved;

(2) according to the invention, the grinding cavity and the grinding roller are arranged, and the grinding roller rotates simultaneously when the crushing mechanism works through the cooperation of the linkage mechanism, so that the crushed construction waste is further ground, the construction is crushed more thoroughly, and the crushing quality of the construction waste is improved;

(3) according to the invention, the arrangement of the first rectangular frame, the second rectangular frame and the filter screen is utilized, small-particle garbage in the construction garbage falling on the filter screen is filtered by the filtering action of the filter screen and falls into the first recovery basket for recovery, and large-particle garbage falls to the second rectangular frame along the filter screen and falls into the second recovery basket for recovery, so that the crushed garbage is classified and recovered, and the working quality of construction garbage recovery work is improved.

Drawings

FIG. 1 is a front sectional structural view of the present invention.

FIG. 2 is a schematic front view of the present invention.

FIG. 3 is a schematic view of the overall structure of the back side of the present invention.

Fig. 4 is a schematic perspective view of a first rectangular frame according to the present invention.

Fig. 5 is a schematic view of the enlarged structure at a point a in fig. 1 according to the present invention.

Fig. 6 is a schematic view of the enlarged structure at the position B of fig. 1 according to the present invention.

Fig. 7 is a partially enlarged structural view of the invention at C of fig. 1.

In the figure: 1. a recycling bin; 2. a U-shaped feeding box; 3. a feed cavity; 4. a movable groove; 5. a lifting baffle plate; 6. a first connecting plate; 7. a second connecting plate; 8. a hydraulic cylinder; 9. hole turning; 10. a first rotating shaft; 11. rotating the baffle; 12. a torsion spring; 13. a rubber sheet; 14. a limiting strip; 15. a grinding chamber; 16. a first rotating lever; 17. a crushing roller; 18. a gear; 19. a grinding chamber; 20. a second rotating rod; 21. a grinding roller; 22. a first belt roller; 23. a second belt roller; 24. a drive belt; 25. a mounting seat; 26. a servo motor; 27. a recovery chamber; 28. a first rectangular frame; 29. a second rectangular frame; 30. a third connecting plate; 31. filtering with a screen; 32. a first recovery basket; 33. a second recovery basket; 34. a first fixed block; 35. a second fixed block; 36. a sealing door; 37. a second rotating shaft; 38. rotating the lock lever; 39. an L-shaped handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a construction waste recovery device for building construction, which comprises a recovery box 1, wherein a crushing cavity 15 is formed in the recovery box 1;

the feeding mechanism comprises a U-shaped feeding box 2 and two lifting baffles 5, the bottom end of the U-shaped feeding box 2 is fixedly connected with the bottom end of the recycling box 1, a feeding cavity 3 is formed in the U-shaped feeding box 2, two openings in the top end of the U-shaped feeding box 2 can feed materials, the feeding cavity 3 is communicated with the crushing cavity 15, two movable grooves 4 are formed in the bottom end of the inner wall of the feeding cavity 3, the outer walls of the two lifting baffles 5 are respectively and slidably connected with the inner wall of the movable groove 4 at the corresponding position, the top ends of the two lifting baffles 5 penetrate through the inner part of the movable groove 4 at the corresponding position and are fixedly connected with a first connecting plate 6, a second connecting plate 7 is fixedly connected between the two end parts of the U-shaped feeding box 2, a hydraulic cylinder 8 is fixedly installed in the middle of the bottom end of the second connecting plate 7, and the output end of the hydraulic cylinder 8 is in transmission connection with the middle of the top end of the first connecting plate 6, the two lifting baffles 5 are controlled to lift simultaneously by the hydraulic cylinder 8, the two openings at the top end of the feeding cavity 3 are respectively provided with a dust blocking mechanism, when feeding is needed, the two lifting baffles 5 are driven by the hydraulic cylinder 8 to descend, so that dust in the crushing mechanism can be blocked from flying out, the building garbage can be temporarily placed in the U-shaped feeding box 2 by opening the dust blocking mechanism for feeding, and after the feeding is completed, the dust blocking mechanism is closed, so that the two lifting baffles 5 can be lifted by the hydraulic cylinder 8, and the building garbage can fall into the crushing cavity 15 for crushing;

the crushing mechanism is arranged inside the crushing cavity 15;

the recovery mechanism is arranged below the crushing mechanism;

the dust blocking mechanism comprises two rotating baffles 11, the two rotating baffles 11 are movably arranged inside the feeding cavity 3, two rotating holes 9 are symmetrically formed in two sides of the inner wall of the feeding cavity 3, first rotating shafts 10 are rotatably arranged on the inner walls of the four rotating holes 9, one ends of the four first rotating shafts 10 are fixedly connected with one sides of the rotating baffles 11 at corresponding positions respectively, torsion springs 12 are sleeved on the outer walls of the four first rotating shafts 10, one ends of the four torsion springs 12 are fixedly connected with the outer walls of the first rotating shafts 10 at corresponding positions respectively, the other ends of the four torsion springs 12 are fixedly connected with the inner walls of the rotating holes 9 at corresponding positions respectively, under the elastic action of the torsion springs 12, under the condition that no other external force exists, the two rotating baffles 11 are closed to block dust, when construction waste is pressed at the top ends of the rotating baffles 11, the torsion springs 12 are compressed to enable the rotating baffles 11 to rotate, so that the construction waste falls into the feeding cavity 3;

rubber sheets 13 are attached to the top end of the inner wall of the feeding cavity 3 and located at two positions of the two movable grooves 4, the rubber sheets 13 are always attached to the lifting baffle 5, so that dust cannot float out of the movable grooves 4, limiting strips 14 are fixedly connected to the front side and the back side of the inner wall of the feeding cavity 3 and located above the rotating baffle 11 at the corresponding position, and the limiting strips 14 limit the rotating baffle 11, so that the rotating baffle 11 is closed between every two rotating baffles to block the dust under the elastic action of the torsion spring 12 and the limiting of the limiting strips 14;

the crushing mechanism comprises two crushing rollers 17, the inner wall of the crushing cavity 15 is rotatably connected with two first rotating rods 16, the two crushing rollers 17 are respectively sleeved on the outer walls of the first rotating rods 16 at corresponding positions, one ends of the two first rotating rods 16 penetrate through the inner wall of the crushing cavity 15 and are sleeved with gears 18, the two gears 18 are meshed and connected, the two gears 18 rotate relatively to drive the two first rotating rods 16 to rotate relatively, so that the two crushing rollers 17 rotate relatively to crush the construction waste, and a grinding mechanism is arranged below the crushing mechanism;

the grinding mechanism comprises a grinding cavity 19 and a grinding roller 21, the grinding cavity 19 is arranged at the bottom end of the inner wall of the crushing cavity 15, the inner wall of the grinding cavity 19 is rotatably connected with a second rotating rod 20, the grinding roller 21 is fixedly sleeved on the outer wall of the second rotating rod 20, the construction waste crushed by the crushing mechanism falls into the grinding cavity 19, the construction waste is ground more finely by the rotating grinding roller 21, a linkage mechanism is arranged between the crushing mechanism and the grinding mechanism, and the crushing mechanism and the grinding mechanism can be driven by only one servo motor 26 through the linkage mechanism;

the linkage mechanism comprises a first belt roller 22, a second belt roller 23 and a transmission belt 24, the inner wall of the transmission belt 24 is in transmission connection with the outer walls of the first belt roller 22 and the second belt roller 23 respectively, one end of a second rotating rod 20 penetrates through the inner wall of the grinding cavity 19 and is fixedly connected with the inner wall of the second belt roller 23 in a penetrating manner, the first belt roller 22 is fixedly sleeved on the outer wall of one of the first rotating rods 16, the back of the recovery box 1 is fixedly connected with an installation seat 25, a servo motor 26 is fixedly installed at the top end of the installation seat 25, an output shaft of the servo motor 26 is in transmission connection with one end of the second rotating rod 20, the servo motor 26 and the hydraulic cylinder 8 are electrically connected with an external power supply through an external switch respectively, an operator can control the servo motor 26 and the hydraulic cylinder 8 conveniently, and the safety and convenience of operation are improved;

the recycling mechanism comprises a first rectangular frame 28 and a second rectangular frame 29, a recycling cavity 27 is formed in the recycling box 1, the recycling cavity 27 is communicated with the grinding cavity 19, the first rectangular frame 28 and the second rectangular frame 29 are arranged in the recycling cavity 27 in a sliding mode, a filter screen 31 is installed in the first rectangular frame 28, a third connecting plate 30 is fixedly connected between the first rectangular frame 28 and the second rectangular frame 29, a first recycling basket 32 and a second recycling basket 33 are arranged at the bottom end of the inner wall of the recycling cavity 27, the filter screen 31 filters small building wastes falling onto the filter screen 31 and falls into the first recycling basket 32 for recycling, and large building wastes extend to the inclined plane of the filter screen 31 to slide to the second rectangular frame 29 and fall into the second recycling basket 33 for recycling;

two first fixing blocks 34 and two second fixing blocks 35 are symmetrically and fixedly connected to the inner wall of the recycling cavity 27, one side of the second rectangular frame 29 is slidably arranged between one first fixing block 34 and the second fixing block 35, one side of the first rectangular frame 28 is slidably arranged between the other first fixing block 34 and the second fixing block 35, and the first rectangular frame 28 and the second rectangular frame 29 can be obliquely arranged in the recycling cavity 27 through the first fixing block 34 and the second fixing block 35;

the front of collection box 1 just is located the front position department that retrieves chamber 27 and articulates there is sealing door 36, is convenient for take out first recovery basket 32 and second recovery basket 33 through opening sealing door 36, clears up filter screen 31 simultaneously, sealing door 36 positive one side fixedly connected with L type handle 39, the front of collection box 1 rotates and is connected with second pivot 37, the outer wall fixedly connected with rotation locking lever 38 of second pivot 37, pivoted rotation locking lever 38 takes the top that L type handle 39 can close sealing door 36.

The working principle of the invention is as follows: the construction waste is placed at the bottom end of the rotating baffle plate 11, the construction waste extrudes the rotating baffle plate 11 due to the gravity of the construction waste, the torsion spring 12 is compressed, the rotating baffle plate 11 rotates around the first rotating shaft 10, so that the construction waste on the rotating baffle plate 11 slides into the feeding cavity 3, and the construction waste is accumulated in the feeding cavity 3 due to the blocking of the lifting baffle plate 5, after the construction waste is accumulated to a certain degree, the rotating baffle plate 11 is reset under the action of the torsion spring 12 after being not extruded, the contraction switch of the hydraulic cylinder 8 is opened, the output end of the hydraulic cylinder 8 drives the first connecting plate 6 to ascend, the first connecting plate 6 ascends to drive the two lifting baffle plates 5 to ascend, so that the lifting baffle plates 5 do not block the construction waste in the feeding cavity 3 any more, the construction waste slides to the crushing cavity 15, the switch of the servo motor 26 is opened, the output shaft of the servo motor 26 drives the second rotating rod 20 to rotate clockwise, thereby enabling the grinding roller 21 to rotate clockwise along with the second rotating rod 20, simultaneously enabling the second rotating rod 20 to rotate clockwise, enabling the second belt roller 23 to rotate and simultaneously enabling the first belt roller 22 to rotate through the transmission belt 24, enabling the first belt roller 22 to rotate and simultaneously enabling the first rotating rod 16 connected with the first belt roller to rotate synchronously, under the meshing of the two gears 18, enabling the two gears 18 to rotate relatively, thereby enabling the two first rotating rods 16 to rotate relatively, thereby enabling the two crushing rollers 17 to rotate synchronously, simultaneously crushing the construction waste falling into the crushing cavity 15, enabling the crushed construction waste to fall into the grinding cavity 19, further grinding the rotated grinding roller 21, enabling the ground construction waste to fall into the recovery cavity 27, enabling the construction waste falling into the recovery cavity 27 to fall into the filter screen 31 in the first rectangular frame 28, the little granule building rubbish after grinding falls to first recovery basket 32 through the filtration pore on the filter screen 31, large granule building rubbish slides to second rectangle frame 29 department on the top of filter screen 31, and fall to the second through second rectangle frame 29 and retrieve in the basket 33, open pneumatic cylinder 8's extension switch, make pneumatic cylinder 8's output shaft extension drive second connecting plate 7 descend, second connecting plate 7 descends and drives two lifting baffle 5 descendingly and resets, can continue to drop into building rubbish to carry out the building rubbish of next time in feeding chamber 3 and smash.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a construction waste recovery device for construction which characterized in that includes:

the recycling bin (1) is internally provided with a crushing cavity (15);

the feeding mechanism comprises a U-shaped feeding box (2) and two lifting baffles (5), the bottom end of the U-shaped feeding box (2) is fixedly connected with the bottom end of the recycling box (1), a feeding cavity (3) is formed in the U-shaped feeding box (2), the feeding cavity (3) is communicated with a crushing cavity (15), two movable grooves (4) are formed in the bottom end of the inner wall of the feeding cavity (3), the outer walls of the two lifting baffles (5) are respectively connected to the inner walls of the movable grooves (4) at corresponding positions in a sliding mode, the top ends of the two lifting baffles (5) penetrate through the inner portions of the movable grooves (4) at corresponding positions and are fixedly connected with a first connecting plate (6), a second connecting plate (7) is fixedly connected between the two end portions of the U-shaped feeding box (2), and a hydraulic cylinder (8) is fixedly installed in the middle of the bottom end of the second connecting plate (7), the output end of the hydraulic cylinder (8) is in transmission connection with the middle of the top end of the first connecting plate (6), and two openings at the top end of the feeding cavity (3) are respectively provided with a dust blocking mechanism;

a crushing mechanism arranged inside the crushing cavity (15);

and the recovery mechanism is arranged below the crushing mechanism.

2. The construction waste recycling device for building construction according to claim 1, the dust blocking mechanism comprises two rotating baffles (11), the two rotating baffles (11) are movably arranged in the feeding cavity (3), two hole (9), four have been seted up to the equal symmetry in both sides of the inner wall of feeding chamber (3) the inner wall of changeing hole (9) all rotates and is provided with first pivot (10), four the one end of first pivot (10) is respectively with one side fixed connection of corresponding position department rotating baffle (11), four the outer wall of first pivot (10) all overlaps and is equipped with torsional spring (12), four the one end of torsional spring (12) is respectively with the outer wall fixed connection of corresponding position department first pivot (10), four the other end of torsional spring (12) is respectively with the inner wall fixed connection of corresponding position department commentaries on classics hole (9).

3. The construction waste recycling device for building construction according to claim 1, wherein rubber sheets (13) are attached to the top end of the inner wall of the feeding cavity (3) at two positions of the two movable grooves (4), and limit strips (14) are fixedly connected to the front surface and the back surface of the inner wall of the feeding cavity (3) above the rotating baffle (11) at the corresponding positions.

4. The construction waste recovery device for building construction according to claim 1, wherein the crushing mechanism comprises two crushing rollers (17), the inner wall of the crushing cavity (15) is rotatably connected with two first rotating rods (16), the two crushing rollers (17) are respectively sleeved on the outer walls of the first rotating rods (16) at corresponding positions, one ends of the two first rotating rods (16) penetrate through the inner wall of the crushing cavity (15) and are sleeved with gears (18), the two gears (18) are meshed and connected, and a grinding mechanism is arranged below the crushing mechanism.

5. The construction waste recycling device for building construction according to claim 4, wherein the grinding mechanism comprises a grinding cavity (19) and a grinding roller (21), the grinding cavity (19) is arranged at the bottom end of the inner wall of the grinding cavity (15), the inner wall of the grinding cavity (19) is rotatably connected with a second rotating rod (20), the grinding roller (21) is fixedly sleeved on the outer wall of the second rotating rod (20), and a linkage mechanism is arranged between the grinding mechanism and the grinding mechanism.

6. The construction waste recycling device for building construction according to claim 5, the linkage mechanism comprises a first belt roller (22), a second belt roller (23) and a transmission belt (24), the inner wall of the transmission belt (24) is respectively in transmission connection with the outer walls of the first belt roller (22) and the second belt roller (23), one end of the second rotating rod (20) penetrates through the inner wall of the grinding cavity (19) and is fixedly connected with the inner wall of the second belt roller (23) in a penetrating way, the first belt roller (22) is fixedly sleeved on the outer wall of one of the first rotating rods (16), the back of the recovery box (1) is fixedly connected with a mounting seat (25), the top end of the mounting seat (25) is fixedly provided with a servo motor (26), an output shaft of the servo motor (26) is in transmission connection with one end of the second rotating rod (20).

7. The construction waste recycling device for building construction according to claim 1, wherein the recycling mechanism comprises a first rectangular frame (28) and a second rectangular frame (29), the recycling cavity (27) is formed in the recycling box (1), the recycling cavity (27) is communicated with the grinding cavity (19), the first rectangular frame (28) and the second rectangular frame (29) are arranged in the recycling cavity (27) in a sliding mode, the filter screen (31) is arranged in the first rectangular frame (28), a third connecting plate (30) is fixedly connected between the first rectangular frame (28) and the second rectangular frame (29), and a first recycling basket (32) and a second recycling basket (33) are arranged at the bottom end of the inner wall of the recycling cavity (27).

8. The construction waste recycling device for building construction according to claim 7, wherein two first fixing blocks (34) and two second fixing blocks (35) are symmetrically and fixedly connected to the inner wall of the recycling cavity (27), one side of the second rectangular frame (29) is slidably disposed between one of the first fixing blocks (34) and the second fixing block (35), and one side of the first rectangular frame (28) is slidably disposed between the other one of the first fixing blocks (34) and the second fixing block (35).

9. The construction waste recycling device for building construction according to claim 1, wherein a sealing door (36) is hinged to the front face of the recycling bin (1) and located at the front face position of the recycling cavity (27), an L-shaped handle (39) is fixedly connected to one side of the front face of the sealing door (36), a second rotating shaft (37) is rotatably connected to the front face of the recycling bin (1), and a rotating lock rod (38) is fixedly connected to the outer wall of the second rotating shaft (37).

10. A construction waste recovery method for building construction is characterized by comprising the following specific use steps:

the method comprises the following steps: the construction waste is placed at the bottom end of the rotating baffle plate (11), the construction waste extrudes the rotating baffle plate (11) due to the self gravity, so that the torsion spring (12) is compressed and the rotating baffle (11) rotates around the first rotating shaft (10), so that the rotating baffle (11) slides into the feeding cavity (3) and is blocked by the lifting baffle (5), so that the construction waste is accumulated in the feeding cavity (3), after the construction waste is accumulated to a certain degree, the rotating baffle (11) is not extruded and then is reset under the action of the torsion spring (12), the contraction switch of the hydraulic cylinder (8) is opened, the output end of the hydraulic cylinder (8) drives the first connecting plate (6) to ascend, the first connecting plate (6) ascends to drive the two lifting baffles (5) to ascend, the lifting baffle (5) does not block the construction waste in the feeding cavity (3) any more, so that the construction waste slides down to the crushing cavity (15);

step two: the switch of the servo motor (26) is turned on, the output shaft of the servo motor (26) drives the second rotating rod (20) to rotate clockwise, so that the grinding roller 21 rotates clockwise along with the second rotating rod (20), meanwhile, the second rotating rod (20) rotates clockwise and drives the second belt roller (23) to rotate synchronously, the second belt roller (23) rotates and drives the first belt roller (22) to rotate through the transmission belt (24), the first rotating rod (16) connected with the first belt roller (22) rotates synchronously, under the meshing of the two gears (18), the two gears (18) rotate relatively, so that the two first rotating rods (16) rotate relatively, so that the two grinding rollers (17) rotate synchronously, the construction waste falling into the grinding cavity (15) is ground while rotating, and the ground construction waste falls into the grinding cavity (19), the ground construction waste falls into a recovery cavity (27) after being further ground by the rotating grinding roller (21);

step three: the construction waste falling into the recovery cavity (27) falls into a filter screen (31) in a first rectangular frame (28), the ground small-particle construction waste falls into a first recovery basket (32) through filter holes on the filter screen (31), and the large-particle construction waste slides to a second rectangular frame (29) at the top end of the filter screen (31) and falls into a second recovery basket (33) through the second rectangular frame (29);

step four: and opening an extension switch of the hydraulic cylinder (8) to enable an output shaft of the hydraulic cylinder (8) to extend to drive the second connecting plate (7) to descend, and the second connecting plate (7) descends to drive the two lifting baffles (5) to descend and reset, so that the construction waste can be continuously thrown into the feeding cavity (3) to be crushed for the next construction waste.