CN112403884A

CN112403884A - Construction waste screening machine for green buildings

Info

Publication number: CN112403884A
Application number: CN202110093155.4A
Authority: CN
Inventors: 李红星; 李昕
Original assignee: Weifang Kaisu Construction Technology Co ltd
Current assignee: Weifang Kaisu Construction Technology Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-02-26

Abstract

The invention discloses a construction waste screening machine for green buildings, and relates to the field of construction waste sorting. According to the screening device, through the arranged shell, the driving mechanism and the screening mechanism, firstly, the motor is started, the output end of the motor drives the transmission shaft to rotate, the transmission shaft drives the driving wheel to rotate, the driving wheel drives the screening mechanism to rotate through the limiting block, the shell is obliquely arranged through the supporting frame, a plurality of groups of clamping wheels are arranged on the inner wall of the shell, the clamping wheels are connected with the push plate in a clamping mode through the clamping grooves in the inner wall, a plurality of groups of limiting wheels are connected to the outer side of the shell in a sliding mode, and the limiting wheels are connected with the screening mechanism in a clamping mode through the limiting rings, so that the screening mechanism can be fixed inside the shell, the screening mechanism can be obliquely arranged, the screening mechanism slides.

Description

Construction waste screening machine for green buildings

Technical Field

The invention relates to the field of building waste sorting, in particular to a building waste screening machine for green buildings.

Background

The construction waste refers to dregs, spoil, waste materials, sludge and other wastes generated in the process of constructing, laying, dismantling and repairing various buildings, structures, pipe networks and the like by construction, construction units or individuals, and the construction waste refers to a general name of dregs, waste concrete, waste bricks and stones and other wastes generated in the production activities of the construction industry such as demolition, construction, decoration, repair and the like by people, and is classified according to the generation source, and can be divided into engineering dregs, decoration wastes, demolition wastes, engineering mud and the like; the construction waste can be classified according to composition, the construction waste can be divided into slag, concrete blocks, broken stone blocks, brick and tile broken blocks, waste mortar, slurry, asphalt blocks, waste plastics, waste metals, waste bamboo and wood and the like, the existing sandstone construction waste is usually required to be filtered and screened to obtain gravels with different diameters after being recycled, the gravel is generally recycled subsequently, and the waste is screened by a screening machine at the moment.

The method of cylinder screening can be adopted usually to current building rubbish screening machine, in the screening process, lead to the grit very easily to block up the inner wall at the cylinder, lead to the cylinder to block up and can not normally use, and when the screening, generally all drive building rubbish through the cylinder and rotate, make building rubbish sieve at the effect of gravity and screen cloth, the cylinder can only radially drive rubbish and encircle the cylinder and rotate and sieve, lead to partial rubbish to pile up together, thereby influence the screening effect.

Disclosure of Invention

The invention aims to: in order to solve the problem that gravel is easy to block up on the inner wall of the roller and the screening effect is not good, the construction waste screening machine for green buildings is provided.

In order to achieve the purpose, the invention provides the following technical scheme: the construction waste screening machine for green buildings comprises a shell, wherein one end of the shell is provided with a driving mechanism, a screening mechanism is arranged in the shell, and the top end of the shell is provided with a cleaning mechanism;

the outer wall of the shell is provided with a plurality of groups of limiting wheels, the bottom end of the shell is positioned under the driving mechanism and is provided with a first discharge port, the bottom end of the shell is positioned above the first discharge port and is provided with a second discharge port, the inner wall of the shell is positioned under the second discharge port and is provided with a baffle, the inner wall of the shell is positioned at the top block of the driving mechanism, the end part of the shell, away from the driving mechanism, is provided with a feed inlet, the inner wall of the shell is provided with a plurality of groups of fixing frames around the screening mechanism, the inner wall of each group of fixing frames is connected with a clamping wheel, two sides of the bottom end of the shell;

the cleaning device comprises a cleaning mechanism, a shell, a plurality of groups of first check valves, a plurality of groups of piston plates, a plurality of guide pipes, an air cavity, a plurality of groups of air nozzles and a plurality of groups of air cavities, wherein the top end of the cleaning mechanism is provided with the plurality of groups of first check valves, two sides of each group of first check valves are positioned in the cleaning mechanism and are provided with air cavities, the air cavities are communicated with the first check valves, the interior of each group of air cavities is provided with the piston plate, one side of each group of piston plates is provided with the push rod, the push rod penetrates through the air cavities and extends to the interior of the shell, the interior of the cleaning mechanism is positioned between two;

the outer wall of the driving mechanism is provided with a motor fixedly connected with the top end of the first discharging port, the output end of the motor penetrates through the driving mechanism and extends to the inside of the shell to be connected with a transmission shaft, and the end part of the transmission shaft is provided with a driving wheel;

the spacing ring has been seted up to screening mechanism's tip, just the outside of spacing ring extension to shell, the multiunit push pedal has been seted up to screening mechanism's outer wall, and every push pedal of group all with the outer wall laminating of push rod, the multiunit screen cloth has been seted up to screening mechanism's inner wall, the pitch arc limit has been seted up to screening mechanism's one end, the outer wall and the kicking block laminating on pitch arc limit, the multiunit stopper has been seted up to screening mechanism's inner wall, screening mechanism cover is established in the outside of drive wheel, screening mechanism passes through stopper and drive wheel sliding connection.

Preferably, the outer wall of the shell is provided with a sleeve, the shell is connected with the limiting wheel in a sliding mode through the sleeve, the outer wall of the shell is provided with a fixing plate, and the feeding port is fixedly connected with the shell through the fixing plate.

Preferably, the clamping wheel is connected with the fixing frame in a sliding mode through the inner wall, the clamping groove is formed in the outer wall of the clamping wheel, and the clamping wheel is connected with the push plate in a clamping mode through the clamping groove.

Preferably, one side of the piston plate is connected with a return spring, the piston plate is in sliding connection with the inner wall of the air cavity through the return spring, the bottom end of the first one-way valve is connected with the opening, and the first one-way valve is communicated with the air cavity through the bottom end opening.

Preferably, the end part of the push rod, which is far away from the piston plate, is connected with a rolling ball, the push rod is attached to the outer wall of the push plate through the rolling ball, and the air nozzle is positioned right above the screen.

Preferably, the inner wall of kicking block installs the multiunit gyro wheel, the pitch arc limit passes through gyro wheel and kicking block sliding connection, lubricated mechanism has been seted up on the top of kicking block, and one side of lubricated mechanism is passed through the pipeline and is put through with the external world.

Preferably, the inner wall of screening mechanism has seted up the multiunit fixed strip, the multiunit the fixed strip is to the screen cloth partition fixed, the inner wall at the fixed strip is fixed to the stopper.

Compared with the prior art, the invention has the beneficial effects that:

1. the screening mechanism screens the construction waste, partial gravel is blocked in holes in a screen mesh, the screening mechanism continues to rotate at the moment, arc edges are contacted with the top block through the outer wall, the top block pushes the screening mechanism to slide up and down through the plurality of groups of rollers arranged on the outer wall, the driving wheel is connected with the screening mechanism in a sliding mode through the limiting block, therefore, the driving wheel can be prevented from being separated from the screening mechanism when the screening mechanism moves up and down, the pushing rod can be extruded by the plurality of groups of pushing plates arranged on the outer wall to reciprocate, so that the pushing rod drives the piston plate to reciprocate in the air cavity, when the piston plate is far away from the first one-way valve, the space between the air cavity and the piston plate is increased, negative pressure is formed in the air cavity, the first one-way valve is pulled to be opened by the negative pressure, and the second one-way valve is, the method comprises the steps that outside air is sucked into an air cavity through a first one-way valve, when a piston plate moves towards the position of the first one-way valve, the space between the piston plate and the air cavity is reduced, the air is extruded to form high pressure, the second one-way valve is pushed to be opened under the high pressure, the first one-way valve is closed, the air can be pushed into a plurality of groups of air nozzles through a guide pipe, air can be sprayed to a screen through the air nozzles, gravel blocked on the outer wall of the screen is blown and washed, two groups of air cavities corresponding to each group of air nozzles are connected, the stretching directions of push rods inside the two groups of air cavities are opposite, when the push rods are pushed by a push plate to move, the motion tracks of the piston plates in the two groups of air cavities are opposite, the air nozzles can be supplied with air uninterruptedly;

2. through the shell, the driving mechanism and the screening mechanism, firstly, the motor is started, the output end of the motor drives the transmission shaft to rotate, the transmission shaft drives the driving wheel to rotate, the driving wheel drives the screening mechanism to rotate through the limiting block, the shell is obliquely arranged through the supporting frame, the inner wall of the shell is provided with a plurality of groups of clamping wheels, the clamping wheels are clamped and connected with the push plate through the clamping grooves of the inner wall, the outer side of the shell is slidably connected with a plurality of groups of limiting wheels, the limiting wheels are clamped and connected with the screening mechanism through limiting rings, so that the screening mechanism can be fixed in the shell, the screening mechanism can be obliquely arranged, the screening mechanism slides towards the bottom end of the inner wall of the shell under the action of gravity, so that the arc line edge is attached to the top block of the inner wall of the shell, when the screening mechanism rotates, the arc line edge can be driven to rotate, and the, thereby drive screening mechanism, make screening mechanism can rock from top to bottom, the card wheel passes through inner wall and mount sliding connection, thereby make the push pedal can promote the card wheel and reciprocate, spacing wheel and shell sliding connection, thereby can make the spacing ring can promote spacing wheel and reciprocate, screening mechanism reciprocates, can carry out the ascending rocking of axial to building rubbish, can be under the stable circumstances of keeping screening mechanism, thereby increased building rubbish's screening effect, effectively solved the not good problem of screening effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the fixing frame of the present invention;

FIG. 3 is a schematic structural view of a screen mechanism of the present invention;

FIG. 4 is a schematic view of the cleaning mechanism of the present invention in an installed position;

FIG. 5 is a schematic view of the internal structure of the cleaning mechanism of the present invention;

FIG. 6 is a schematic view of the driving wheel of the present invention;

FIG. 7 is a schematic cross-sectional view of the driving mechanism of the present invention;

FIG. 8 is a schematic view of the top block structure of the present invention;

FIG. 9 is a schematic view of a structure of the chuck wheel of the present invention.

In the figure: 1. a housing; 101. a limiting wheel; 102. a first discharge port; 103. a fixing plate; 104. a feed inlet; 105. a second discharge opening; 106. a support frame; 107. a fixed mount; 108. clamping the wheel; 109. a baffle plate; 110. a top block; 111. a roller; 2. a cleaning mechanism; 201. a first check valve; 202. an air nozzle; 203. a push rod; 204. a second one-way valve; 205. an air cavity; 206. a piston plate; 207. a return spring; 208. a conduit; 3. a drive mechanism; 301. a motor; 302. a drive shaft; 303. a drive wheel; 4. a screening mechanism; 401. a limiting ring; 402. pushing the plate; 403. arc edges; 404. a fixing strip; 405. screening a screen; 406. and a limiting block.

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.

Referring to fig. 1-9, the construction waste screening machine for green buildings comprises a housing 1, wherein one end of the housing 1 is provided with a driving mechanism 3, a screening mechanism 4 is arranged inside the housing 1, and the top end of the housing 1 is provided with a cleaning mechanism 2;

the outer wall of the shell 1 is provided with a plurality of groups of limiting wheels 101, the bottom end of the shell 1 is positioned right below the driving mechanism 3 and is provided with a first discharge port 102, the bottom end of the shell 1 is positioned above the first discharge port 102 and is provided with a second discharge port 105, the inner wall of the shell 1 is positioned below the second discharge port 105 and is provided with a baffle plate 109, the inner wall of the shell 1 is positioned below the driving mechanism 3 and is provided with a top block 110, the end part of the shell 1, far away from the driving mechanism 3, is provided with a feed inlet 104, the inner wall of the shell 1 is provided with a plurality of groups of fixing frames 107 around the screening mechanism 4, the inner wall of each group of fixing frames 107 is connected with a clamping wheel 108;

the top end of the cleaning mechanism 2 is provided with a plurality of groups of first one-way valves 201, the two sides of each group of first one-way valves 201 are positioned inside the cleaning mechanism 2 and are all provided with air cavities 205, the air cavities 205 are communicated with the first one-way valves 201, the inside of each group of air cavities 205 is provided with piston plates 206, one side of each group of piston plates 206 is provided with push rods 203, the push rods 203 penetrate through the air cavities 205 and extend to the inside of the shell 1, the inside of the cleaning mechanism 2 is positioned between two adjacent groups of air cavities 205 and is provided with guide pipes 208, the bottom ends of the guide pipes 208 extending to the cleaning mechanism 2 are connected with air nozzles 202, the two sides of the guide pipes 208 are positioned inside the cleaning mechanism 2 and are provided with second one-way valves;

a motor 301 fixedly connected with the top end of the first discharge port 102 is installed on the outer wall of the driving mechanism 3, the output end of the motor 301 penetrates through the driving mechanism 3 and extends to the inside of the shell 1 to be connected with a transmission shaft 302, and a driving wheel 303 is installed at the end part of the transmission shaft 302;

spacing ring 401 has been seted up to screening mechanism 4's tip, and spacing ring 401 extends to the outside of shell 1, multiunit push pedal 402 has been seted up to screening mechanism 4's outer wall, and every push pedal 402 of group all laminates with the outer wall of push rod 203, multiunit screen cloth 405 has been seted up to screening mechanism 4's inner wall, pitch arc limit 403 has been seted up to screening mechanism 4's one end, the outer wall and the kicking block 110 laminating of pitch arc limit 403, multiunit stopper 406 has been seted up to screening mechanism 4's inner wall, screening mechanism 4 cover is established in the outside of drive wheel 303, screening mechanism 4 passes through stopper 406 and drive wheel 303 sliding connection.

Please refer to fig. 1, the outer wall of the housing 1 is provided with a sleeve, the housing 1 is slidably connected to the limiting wheel 101 through the sleeve, the outer wall of the housing 1 is provided with a fixing plate 103, the feeding port 104 is fixedly connected to the housing 1 through the fixing plate 103, and the fixing plate 103 can fix the feeding port 104 to prevent the feeding port 104 from falling off.

Please refer to fig. 9, the clamping wheel 108 is slidably connected to the fixing frame 107 through an inner wall, a clamping groove is formed on an outer wall of the clamping wheel 108, the clamping wheel 108 is connected to the pushing plate 402 through the clamping groove, and the clamping wheel 108 can move synchronously with the sieving mechanism 4 when the sieving mechanism 4 moves up and down.

Referring to fig. 4 again, a return spring 207 is connected to one side of the piston plate 206, the piston plate 206 is slidably connected to the inner wall of the air chamber 205 through the return spring 207, the bottom end of the first check valve 201 is connected to the opening, the first check valve 201 is connected to the air chamber 205 through the bottom end opening, and the air in the air chamber 205 can be controlled through the sets of check valves, so that the external air can be smoothly ejected through the air nozzle 202.

Referring to fig. 4, the end of the push rod 203 far from the piston plate 206 is connected with a rolling ball, the push rod 203 is attached to the outer wall of the push plate 402 through the rolling ball, and the air nozzle 202 is located right above the screen 405.

Please refer to fig. 8, the inner wall of the top block 110 is provided with a plurality of sets of rollers 111, the arc edge 403 is slidably connected with the top block 110 through the rollers 111, the top end of the top block 110 is provided with a lubricating mechanism, and one side of the lubricating mechanism is communicated with the outside through a pipeline, so that the contact friction between the arc edge 403 and the top block 110 can be effectively reduced through the rollers 111.

Please refer to fig. 3, the inner wall of the sieving mechanism 4 is provided with a plurality of sets of fixing strips 404, the screen 405 is separated and fixed by the sets of fixing strips 404, the limiting block 406 is fixed on the inner wall of the fixing strips 404, and the screen 405 can be fixed by the limiting block 406, so as to prevent the screen 405 from being damaged by the construction waste.

The working principle is as follows: firstly, building garbage is put into the screening mechanism 4 through the feed inlet 104, then the motor 301 is started, the output end of the motor 301 drives the transmission shaft 302 to rotate, the transmission shaft 302 drives the driving wheel 303 to rotate, the driving wheel 303 drives the screening mechanism 4 to rotate through the limiting block 406, the shell 1 is obliquely arranged through the supporting frame 106, the inner wall of the shell 1 is provided with a plurality of groups of clamping wheels 108, the clamping wheels 108 are clamped and connected with the push plate 402 through the clamping grooves of the inner wall, the outer side of the shell 1 is slidably connected with a plurality of groups of limiting wheels 101, the limiting wheels 101 are clamped and connected with the screening mechanism 4 through the limiting rings 401, so that the screening mechanism 4 can be fixed inside the shell 1, the screening mechanism 4 can be obliquely arranged, the building garbage moves downwards along the inner wall of the screening mechanism 4, at the moment, the screening mechanism 4 slides towards the bottom end of the inner wall of the shell 1 under the action, when the screening mechanism 4 rotates, the arc edge 403 is driven to rotate, and the outer side of the top block 110 is provided with a plurality of groups of rollers 111, so that the top block 110 can jack the screening mechanism 4 back and forth through the arc edge 403, thereby driving the screening mechanism 4, so that the screening mechanism 4 can rock up and down, the clamping wheel 108 is in sliding connection with the fixing frame 107 through the inner wall, so that the pushing plate 402 can push the clamping wheel 108 to move up and down, the limiting wheel 101 is in sliding connection with the housing 1, so that the limiting ring 401 can push the limiting wheel 101 to move up and down, the screening mechanism 4 can move up and down, so that the construction waste can be axially rocked, under the condition that the screening mechanism 4 is kept stable, so that the screening effect of the construction waste is increased, the construction waste can be screened through the screen 405, the screened small waste passes through the screen 405 to enter the housing 1 and reaches the second discharge port 105 along the inner wall of the housing 1 to be discharged, the large garbage slides downwards along the inner wall of the screening mechanism 4 until entering the first discharge port 102 to be discharged;

when the screening mechanism 4 screens the construction waste, part of gravel is blocked in the holes in the screen 405, at this time, the screening mechanism 4 continues to rotate, the arc edge 403 contacts with the top block 110 through the outer wall, the top block 110 pushes the screening mechanism 4 to slide up and down through the multiple sets of rollers 111 arranged on the outer wall, the driving wheel 303 is in sliding connection with the screening mechanism 4 through the limiting block 406, so that the driving wheel 303 is separated from the screening mechanism 4 when the screening mechanism 4 moves up and down, the pushing rod 203 is extruded to reciprocate through the multiple sets of pushing plates 402 arranged on the outer wall, so that the pushing rod 203 drives the piston plate 206 to reciprocate in the air cavity 205, when the piston plate 206 is far away from the first one-way valve 201, the space between the air cavity 205 and the piston plate 206 is increased, negative pressure is formed in the air cavity 205, the first one-way valve 201 is pulled to be opened by the negative pressure, so that the second, the outside air is sucked into the air chambers 205 through the first one-way valve 201, when the piston plate 206 moves towards the first one-way valve 201, the space between the piston plate 206 and the air chambers 205 is reduced, so that the air is extruded to form high pressure, the high pressure pushes the second one-way valve 204 to be opened, the first one-way valve 201 is closed, so that the air can be pushed into a plurality of groups of air nozzles 202 through the guide pipe 208, the screen 405 can be sprayed through the air nozzles 202, gravel blocked on the outer wall of the screen 405 can be purged, two groups of air chambers 205 corresponding to each group of air nozzles 202 are connected, the extending directions of push rods 203 inside the two groups of air chambers 205 are opposite, when the push rods 402 push the push rods 203 to move, the motion tracks of the piston plates 206 in the two groups of air chambers 205 are opposite, so that the air nozzles 202 can be supplied uninterruptedly, and the air nozzles 202 can spray the screen 405 uninterrupt, thereby improving the cleanliness of the screen 405.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A building rubbish screening machine for green building, including shell (1), its characterized in that: a driving mechanism (3) is arranged at one end of the shell (1), a screening mechanism (4) is arranged in the shell (1), and a cleaning mechanism (2) is arranged at the top end of the shell (1);

the outer wall of the shell (1) is provided with a plurality of groups of limiting wheels (101), the bottom end of the shell (1) is positioned under the driving mechanism (3) and is provided with a first discharging port (102), a second discharge port (105) is arranged at the bottom end of the shell (1) above the first discharge port (102), a baffle plate (109) is arranged on the inner wall of the shell (1) below the second discharge opening (105), the inner wall of the shell (1) is provided with a top block (110) positioned on the driving mechanism (3), a feed inlet (104) is arranged at the end part of the shell (1) far away from the driving mechanism (3), the inner wall of the shell (1) is provided with a plurality of groups of fixed frames (107) around the screening mechanism (4), the inner wall of each group of fixing frames (107) is connected with a clamping wheel (108), two sides of the bottom end of the shell (1) are provided with supporting frames (106), and the shell (1) is obliquely arranged;

a plurality of groups of first one-way valves (201) are arranged at the top end of the cleaning mechanism (2), air cavities (205) are arranged inside the cleaning mechanism (2) at two sides of each group of first one-way valves (201), the air chambers (205) are communicated with the first one-way valves (201), the interior of each air chamber (205) is provided with a piston plate (206), one side of each piston plate (206) is provided with a push rod (203), the push rod (203) penetrates through the air cavity (205) and extends to the interior of the shell (1), a guide pipe (208) is arranged in the cleaning mechanism (2) and between two adjacent groups of air cavities (205), the bottom end of the guide pipe (208) extending to the cleaning mechanism (2) is connected with an air nozzle (202), two sides of the conduit (208) are both arranged in the cleaning mechanism (2) and are provided with second one-way valves (204), the guide pipe (208) is communicated with the air cavity (205) through a second one-way valve (204);

the outer wall of the driving mechanism (3) is provided with a motor (301) fixedly connected with the top end of the first discharging port (102), the output end of the motor (301) penetrates through the driving mechanism (3) and extends to the inside of the shell (1) to be connected with a transmission shaft (302), and the end part of the transmission shaft (302) is provided with a driving wheel (303);

spacing ring (401) have been seted up to the tip of screening mechanism (4), just spacing ring (401) extend to the outside of shell (1), multiunit push pedal (402) have been seted up to the outer wall of screening mechanism (4), and every push pedal of group (402) all laminates with the outer wall of push rod (203), multiunit screen cloth (405) have been seted up to the inner wall of screening mechanism (4), pitch arc limit (403) have been seted up to the one end of screening mechanism (4), the outer wall and the kicking block (110) laminating of pitch arc limit (403), multiunit stopper (406) have been seted up to the inner wall of screening mechanism (4), the outside at drive wheel (303) is established to screening mechanism (4) cover, screening mechanism (4) are through stopper (406) and drive wheel (303) sliding connection.

2. The construction waste screening machine for green buildings according to claim 1, characterized in that: the sleeve has been seted up to the outer wall of shell (1), shell (1) passes through sleeve and spacing wheel (101) sliding connection, fixed plate (103) have been seted up to the outer wall of shell (1), feed inlet (104) pass through fixed plate (103) and shell (1) fixed connection.

3. The construction waste screening machine for green buildings according to claim 1, characterized in that: card wheel (108) pass through inner wall and mount (107) sliding connection, the draw-in groove has been seted up to the outer wall of card wheel (108), card wheel (108) pass through the draw-in groove and are connected with push pedal (402) block.

4. The construction waste screening machine for green buildings according to claim 1, characterized in that: one side of the piston plate (206) is connected with a return spring (207), the piston plate (206) is in sliding connection with the inner wall of the air cavity (205) through the return spring (207), the bottom end of the first one-way valve (201) is connected with the opening, and the first one-way valve (201) is communicated with the air cavity (205) through the bottom end opening.

5. The construction waste screening machine for green buildings according to claim 1, characterized in that: the end part, far away from the piston plate (206), of the push rod (203) is connected with a rolling ball, the push rod (203) is attached to the outer wall of the push plate (402) through the rolling ball, and the air nozzle (202) is located right above the screen (405).

6. The construction waste screening machine for green buildings according to claim 1, characterized in that: multiunit gyro wheel (111) are installed to the inner wall of kicking block (110), pitch arc limit (403) pass through gyro wheel (111) and kicking block (110) sliding connection, lubricated mechanism has been seted up on the top of kicking block (110), and one side of lubricated mechanism is passed through the pipeline and is put through with the external world.

7. The construction waste screening machine for green buildings according to claim 1, characterized in that: the inner wall of the screening mechanism (4) is provided with a plurality of groups of fixing strips (404), the plurality of groups of fixing strips (404) are used for separating and fixing the screen (405), and the limiting blocks (406) are fixed on the inner wall of the fixing strips (404).