CN118698635B - Garbage disposal equipment for construction - Google Patents

Abstract

The invention discloses garbage disposal equipment for construction, which relates to the technical field of construction garbage disposal, and comprises a shell and a crushing mechanism, wherein the crushing mechanism is arranged at the upper side in the shell, the screening mechanism comprises a first screen, one end of which is hinged with the shell, a second screen, which is positioned below the first screen, is hinged in the shell, the first screen is hinged with the second screen through a first connecting rod, the other end of the first screen is hinged with a second connecting rod, the vibrating mechanism is arranged between the first screen and the second screen, the vibrating mechanism comprises two supporting plates which are fixedly connected with the shell and are vertically distributed, and each supporting plate is slidably connected with a vibrating rod which extends vertically and is used for vibrating and screening the first screen and the second screen; the invention can improve the efficiency of crushing the construction waste.

Description

Garbage disposal equipment for construction

Technical Field

The invention relates to the technical field of construction waste treatment, and in particular to a waste treatment device for construction.

Background Art

A construction project refers to an engineering entity formed by the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and devices. During the construction process, a lot of construction waste containing reinforced concrete is often generated. The remaining construction waste from construction will be crushed and then recycled to produce aggregates of various specifications and standards for reuse.

The Chinese invention patent with application number CN202111158450.X discloses a construction waste treatment device, including a crushing device, the crushing device including an abutment and an extrusion member, the abutment and the extrusion member are distributed in the horizontal direction, and closing plates are provided on both sides of the abutment, the closing plates extend toward the side close to the extrusion member, and the extrusion member is located between the two closing plates; a movable device, the movable device is provided with two, the movable device includes a roller shaft, a connecting rod and a first motor, the roller shaft is rotatably connected to the closing plate, one end of the connecting rod is fixedly connected to the roller shaft, and the other end is hinged to the extrusion member, and the hinge axis of the connecting rod and the extrusion member is parallel to the roller shaft The rotation axis of the shaft; although this solution can separate the crushed concrete and steel bars to a certain extent, and the steel bars and crushed concrete can fall on the metal mesh conveyor belt for screening, the metal mesh conveyor belt is always in motion and the angle is constant during this process. The steel bars that fall on the metal mesh conveyor belt are easily inserted into its sieve holes, and the concrete particles that move with the steel bars will fall off the metal mesh conveyor belt with the steel bars before they are completely screened, and the separation effect cannot be achieved. In addition, the rotating setting of the metal mesh conveyor belt requires two screenings for the crushed concrete particles to be separated. At this time, the concrete particles can easily block the sieve holes of the metal mesh conveyor belt, and it is very troublesome to clear the blocked sieve holes, which is not conducive to the efficient crushing and screening work.

Therefore, a kind of garbage disposal equipment for building construction is invented to solve the above problems.

Summary of the invention

The main purpose of the present invention is to provide a garbage disposal device for construction, which can effectively solve the technical problems in the background technology.

To achieve the above object, the technical solution adopted by the present invention is: a construction waste treatment device, comprising a shell and a crushing mechanism, wherein the crushing mechanism is arranged on the upper side of the shell, and the crushing mechanism is used to crush the construction waste entering the shell;

A screening mechanism, the screening mechanism is arranged in the shell and is located below the crushing mechanism, the screening mechanism comprises a first screen having one end hinged to the shell, a second screen hinged in the shell and located below the first screen, the first screen and the second screen are hinged via a first connecting rod, a second connecting rod is hinged to the other end of the first screen, and a free end of the second connecting rod is connected to the crushing mechanism;

A vibration mechanism is arranged between the first screen and the second screen, and the vibration mechanism includes two support plates fixedly connected to the shell and distributed vertically, each of the support plates is slidably connected with a vertically extending vibration rod, and the vibration rod is used for vibrating and screening the first screen and the second screen.

Preferably, the crushing mechanism also includes an anti-compression block fixedly connected to the shell, a fixed plate located below the anti-compression block is fixedly connected inside the shell, a crushing block is slidably connected between the upper end of the fixed plate and the shell, the free end of the second connecting rod is hinged to the crushing block, and the relative surfaces of the crushing block and the anti-compression block are both inclined surfaces.

Preferably, the vibration mechanism also includes a push plate located between the two support plates, and laterally extending slide grooves are respectively provided at both vertical ends of the push plate. A sliding block extending into the slide groove on its corresponding side is fixedly connected to each support plate, and a third connecting rod is hinged at one end of the push plate close to the first connecting rod, and the free end of the third connecting rod is hinged to the first connecting rod.

Preferably, a laterally extending guide groove is provided at one end of the push plate close to the vibration rod, a rectangular groove connected to one end of the guide groove is provided at one end of the push plate close to the vibration rod, oblique grooves are provided on both vertical sides of the push plate, the other end of the guide groove is connected to the oblique groove, the distance between the two oblique grooves close to the guide groove is smaller than the distance between them away from the guide groove, and each of the vibration rods is slidably connected to a push rod capable of extending into the oblique groove on its corresponding side.

Preferably, each of the vibration rods is provided with a spring located on the outside of the support plate, each of the push rods is slidably connected to the vibration rod through a compression spring, and arc-shaped plates are respectively provided on both vertical sides of the rectangular groove, the thickness of the opposite ends of the two arc-shaped plates is greater than the thickness of the opposite ends, and each of the push rods can contact the arc-shaped plate on its corresponding side.

Preferably, the inclined surface of the crushing block is provided with multiple rows of first crushing rods evenly distributed along the slope direction thereof, and the inclined surface of the compression block is provided with multiple rows of second crushing rods evenly distributed along the slope direction thereof, and the multiple rows of the first crushing rods and the multiple rows of the second crushing rods are staggered.

Preferably, a clearance groove is provided at one end of the crushing block away from the first crushing rod, and a vertically extending limit groove is provided on the side of the clearance groove. A motor is fixedly installed in the shell, and a disc is coaxially provided at the output end of the motor. An insertion rod is eccentrically provided at one end of the disc away from the motor, and the free end of the insertion rod extends into the limit groove.

Preferably, a funnel-shaped lower material bin is provided in the shell and is located below the second screen, the lower end of the lower material bin extends out of the shell, and the upper end of the shell is provided with a feed bin connected to the interior thereof.

Preferably, a discharge trough located above the second screen is provided on the left side of the shell, a storage box located below the discharge trough is provided on the left side of the shell, a recovery trough is provided on the right side of the shell, a collection box located below the recovery trough is provided on the right side of the shell, a guide plate with the same slope as the recovery trough is provided in the recovery trough, and the lower end of the second screen can contact the guide plate.

Preferably, one end of the first screen close to its hinge point and one end of the second screen away from its hinge point are respectively hinged with a blocking plate through a pin shaft, a torsion spring is coaxially provided on each pin shaft, and the diameter of the screen holes on the first screen is larger than the diameter of the screen holes on the second screen.

Technical effects and advantages of the present invention:

1. By crushing the concrete waste when the crushing block slides, the inclination angle of the first screen is gradually increased, which effectively prevents the crushed steel bars from being inserted into the sieve holes on the first screen. At the same time, the inclination angle of the second screen is gradually reduced, so that the concrete particles falling on the second screen can fully fall from the sieve holes thereon. In the process of continuous change of the inclination angles of the first screen and the second screen, not only can the steel bars and granular concrete waste be effectively screened, but also the probability of the sieve holes being blocked can be reduced in advance under the action of its own swing, thereby improving the effect of crushing and screening the concrete waste and further improving the efficiency of construction waste treatment.

2. During the swinging of the first screen and the second screen, the spring on the vibration rod can be compressed and stored through the inclined groove on the push plate, so that the spring drives the vibration rod to dynamically impact the first screen and the second screen during the swinging process. The combination of the two improves the efficiency of the impact on the first screen and the second screen. In the process of the angle change of the first screen and the second screen, the vibration generated by the impact of the vibration rod on them is also changing. The difference in vibration frequency also allows the concrete particles that may be blocked in the sieve holes to quickly break away, thereby improving the screening efficiency and further improving the efficiency of concrete waste treatment.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a front axonometric view of the present invention;

Fig. 2 is a full cross-sectional front view of the present invention;

Fig. 3 is a full cutaway right axonometric view of the present invention;

FIG4 is a schematic diagram of the structures of the crushing mechanism, the screening mechanism and the vibrating mechanism in the present invention;

FIG5 is a schematic structural diagram of a crushing mechanism in the present invention;

FIG6 is a schematic diagram of the structure of the screening mechanism and the vibration mechanism in the present invention;

FIG7 is a schematic diagram of the structure of the vibration mechanism of the present invention;

FIG8 is an exploded schematic diagram of the structure of the vibration mechanism of the present invention;

FIG9 is a schematic structural diagram of a screening mechanism in the present invention;

FIG. 10 is a partial enlarged view of point A in FIG. 9 of the present invention.

In the figure: 1, shell; 2, crushing mechanism; 201, compression block; 202, fixing plate; 203, crushing block; 204, first crushing rod; 205, second crushing rod; 206, clearance groove; 207, limit groove; 208, motor; 209, disc; 210, plug rod; 3, screening mechanism; 301, first screen; 302, second screen; 303, first connecting rod; 304, second connecting rod; 4, vibration mechanism; 401, support plate ; 402, vibration rod; 403, push plate; 404, slide groove; 405, slider; 406, third connecting rod; 407, guide groove; 408, rectangular groove; 409, inclined groove; 410, push rod; 411, spring; 412, compression spring; 413, arc plate; 5, lower bin; 6, feed bin; 7, discharge trough; 8, storage box; 9, recovery trough; 10, collection box; 11, guide plate; 12, pin shaft; 13, sealing plate; 14, torsion spring.

DETAILED DESCRIPTION

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.

Example

In the prior art, when crushing and separating construction waste containing concrete with steel bars, it is usually necessary to separate the steel bars separately. However, when crushing construction waste containing concrete with steel bars, since the angles and positions of some screening screens remain unchanged, when the steel bars fall on the screens, they are easily inserted into the screen holes, and the steel bars and concrete are easily separated at the same time, which is not conducive to the separation of the crushed concrete particles and the steel bars. This embodiment is specially invented to solve the above problems.

As shown in Figures 1 to 6, a construction waste treatment device according to an embodiment of the present invention comprises a housing 1 and a crushing mechanism 2, wherein the crushing mechanism 2 is arranged on the upper side of the housing 1, and the crushing mechanism 2 is used to crush the construction waste entering the housing 1, and the screening mechanism 3 is arranged in the housing 1 and below the crushing mechanism 2, and the screening mechanism 3 comprises a first screen 301 hinged to the housing 1 at one end, and a second screen 302 hinged to the housing 1 and located below the first screen 301, and the first screen 301 and the second screen 302 are arranged on the upper side of the housing 1, and the first screen 301 and the second screen 302 are arranged on the lower side of the housing 1. The first screen 301 is hinged with a first connecting rod 303, and the other end of the first screen 301 is hinged with a second connecting rod 304. The free end of the second connecting rod 304 is connected to the crushing mechanism 2. The crushing mechanism 2 also includes an anti-compression block 201 fixedly connected to the shell 1, and a fixed plate 202 located below the anti-compression block 201 is fixedly connected in the shell 1. A crushing block 203 is slidably connected between the upper end of the fixed plate 202 and the shell 1, and the free end of the second connecting rod 304 is hinged to the crushing block 203, and the opposite surfaces of the crushing block 203 and the anti-compression block 201 are both inclined surfaces.

The inclined surface of the crushing block 203 is provided with multiple rows of first crushing rods 204 uniformly distributed along the inclination direction thereof, and the inclined surface of the pressure-resistant block 201 is provided with multiple rows of second crushing rods 205 uniformly distributed along the inclination direction thereof, and the multiple rows of first crushing rods 204 and the multiple rows of second crushing rods 205 are staggeredly distributed. A clearance groove 206 is provided at one end of the crushing block 203 away from the first crushing rod 204, and a vertically extending limiting groove 207 is provided on the side of the clearance groove 206. A motor 208 is fixedly installed in the shell 1, and a disc 209 is coaxially provided at the output end of the motor 208. An insertion rod 210 is eccentrically provided at one end of the disc 209 away from the motor 208, and the free end of the insertion rod 210 extends into the limiting groove 207. A funnel-shaped lower material bin 5 is provided in the shell 1 and is located below the second screen 302. The lower end of the lower material bin 5 extends out of the shell body 1, and the upper end of the shell body 1 is provided with a feeding bin 6 connected with the interior thereof, a discharge trough 7 located above the second screen 302 is opened on the left side of the shell body 1, and a storage box 8 located below the discharge trough 7 is provided on the left side of the shell body 1, a recovery trough 9 is opened on the right side of the shell body 1, and a collecting box 10 located below the recovery trough 9 is provided on the right side of the shell body 1, and a guide plate 11 with the same slope as the recovery trough 9 is provided in the recovery trough 9, and the lower end of the second screen 302 can contact the guide plate 11, and an end of the first screen 301 close to its hinge point and an end of the second screen 302 away from its hinge point are respectively hinged with a sealing plate 13 through a pin shaft 12, and each pin shaft 12 is coaxially provided with a torsion spring 14, and the sieve hole diameter on the first screen 301 is larger than the sieve hole diameter on the second screen 302.

When in use, first start the motor 208, and the motor 208 drives the insertion rod 210 to rotate through the disc 209. When the eccentric point of the insertion rod 210 and the disc 209 rotates from the leftmost side to the rightmost side, the disc 209 drives the crushing block 203 to slide to the right along the shell 1 and the fixed plate 202 through the insertion rod 210 and the limiting groove 207, and the opening of the yield groove 206 can prevent the crushing block 203 from colliding with the disc 209. At this time, the crushing block 203 drives the first crushing rod 204 to move to the right, and the crushing block 203 drives the first screen 301 to swing downward along the shell 1 through the second connecting rod 304, and the first screen 301 drives the second screen 302 to swing downward through the first connecting rod 303, thereby Concrete waste is poured into the shell 1 through the feed bin 6. Since the compression block 201 is narrow at the top and wide at the bottom, the concrete waste can gradually slide downward along the inclined surface of the compression block 201, and multiple rows of second crushing rods 205 are provided to slow down the downward sliding rate of the concrete waste. When the eccentric point of the insertion rod 210 and the disc 209 rotates from the rightmost side to the leftmost side, the disc 209 drives the crushing block 203 to slide leftward along the shell 1 through the insertion rod 210 and the limiting groove 207, and the crushing block 203 drives the first crushing rod 204 to move leftward. Under the action of the compression block 201 and the second crushing rod 205, the crushing block 203 drives the first crushing rod 204 to squeeze and crush the concrete waste.

The crushed concrete waste and steel bars slide downward onto the first screen 301 through the gap between the first crushing rod 204 and the second crushing rod 205, and at this time, the crushing block 203 drives the first screen 301 to swing upward along the shell 1 through the second connecting rod 304. Since the inclination of the first screen 301 gradually increases, when the concrete waste mixed with steel bars falls on the first screen 301, the steel bars will not be inserted into the sieve holes on the first screen 301, which is also conducive to the steel bars sliding downward along the first screen 301. At the same time, the first screen 301 drives the second screen 302 to swing upward along the shell 1 through the first connecting rod 303, and the inclination of the second screen 302 gradually decreases, so that the crushed large and small particles of concrete waste pass through the sieve holes on the first screen 301 and fall onto the second screen 302, so that the small particles of concrete waste can fully fall from the sieve holes on the second screen 302 into the lower silo 5, and fall to the outside of the shell 1 through the lower silo 5 for collection.

At the same time, the steel bar slides to the blocking plate 13 on the first screen 301. At this time, under the action of the steel bar's own weight, the steel bar pushes the blocking plate 13 to swing upward along the first screen 301 through the pin shaft 12, and the opened discharge chute 7 and recovery chute 9 are both shaped to be inclined downward from the inside to the outside, so that the steel bars on the first screen 301 can fall into the storage box 8 through the discharge chute 7. When there is no more steel bar accumulation at the blocking plate 13, the torsion spring 14 drives the blocking plate 13 to swing downward to the initial position through the pin shaft 12. When the unbroken steel bars falling on the second screen 302 are completely At this time, the large particles of concrete waste push the sealing plate 13 on the second screen 302 to swing upward through the pin shaft 12, so that the large particles of concrete waste pass through the guide plate 11 and the recovery groove 9 and fall into the collection box 10. Then, under the action of the torsion spring 14, the sealing plate 13 on the second screen 302 swings to the initial position, and the above movement is repeated, which can not only efficiently crush the concrete waste, but also classify and collect the incompletely crushed concrete waste and steel bars, thereby improving the efficiency of concrete waste treatment.

By crushing the concrete waste when the crushing block 203 slides, the inclination angle of the first screen 301 is gradually increased, which effectively prevents the crushed steel bars from being inserted into the sieve holes on the first screen 301. At the same time, the inclination angle of the second screen 302 is gradually reduced, so that the concrete particles falling on the second screen 302 can fully fall from the sieve holes thereon. In the process of continuous change of the inclination angles of the first screen 301 and the second screen 302, not only can the steel bars and granular concrete waste be effectively screened, but also the probability of the sieve holes being blocked can be reduced in advance due to its own swing, thereby improving the effect of crushing and screening the concrete waste and further improving the efficiency of construction waste treatment.

Example

When concrete particles fall on the screen, since the screen only changes its angle continuously, it is easy for the concrete particles to block the screen holes, making it difficult for the concrete particles blocking the screen holes to fall off by themselves, which is not conducive to efficient crushing and screening. Therefore, further improvements are made based on the above embodiments.

As shown in Figures 6 to 10, the vibration mechanism 4 is arranged between the first screen 301 and the second screen 302, and the vibration mechanism 4 includes two support plates 401 fixedly connected to the shell 1 and distributed vertically, and each support plate 401 is slidably connected with a vertically extending vibration rod 402, and the vibration rod 402 is used for vibrating and screening the first screen 301 and the second screen 302. The vibration mechanism 4 also includes a push plate 403 located between the two support plates 401, and the push plate 403 has horizontally extending slide grooves 404 at both vertical ends. Each support plate 401 is fixedly connected with a slider 405 extending into the slide groove 404 on its corresponding side, and the push plate 403 is hinged at one end close to the first connecting rod 303 with a third connecting rod 406, and the free end of the third connecting rod 406 is hinged to the first connecting rod 303.

A laterally extending guide groove 407 is provided at one end of the push plate 403 close to the vibration rod 402, a rectangular groove 408 connected to one end of the guide groove 407 is provided at one end of the push plate 403 close to the vibration rod 402, and an inclined groove 409 is provided on both vertical sides of the push plate 403, the other end of the guide groove 407 is connected to the inclined groove 409, the distance between the two inclined grooves 409 close to the guide groove 407 is smaller than the distance between them away from the guide groove 407, each vibration rod 402 is slidably connected with a push rod 410 that can extend into the inclined groove 409 on its corresponding side, each vibration rod 402 is mounted with a spring 411 located on the outside of the support plate 401, each push rod 410 is slidably connected to the vibration rod 402 through a compression spring 412, and arc plates 413 are provided on both vertical sides of the rectangular groove 408, the thickness of the opposite ends of the two arc plates 413 is greater than the thickness of the opposite ends, and each push rod 410 can contact the arc plate 413 on its corresponding side.

When in use, during the process of the eccentric point of the insertion rod 210 and the disc 209 rotating from the leftmost side to the rightmost side, the disc 209 drives the crushing block 203 to slide to the right along the shell 1 and the fixed plate 202 through the insertion rod 210 and the limiting groove 207, and the crushing block 203 drives the first screen 301 to swing downward along the shell 1 through the second connecting rod 304, and the first screen 301 drives the second screen 302 to swing downward along the shell 1 through the first connecting rod 303, and at the same time, the first connecting rod 303 pushes the push plate 403 to slide to the right along the two support plates 401 through the sliding groove 404 and the slider 405 through the third connecting rod 406, and the push plate 403 slides to the right through the two inclined grooves 409 and the push rod 410 to drive the two vibration rods 402 to slide relatively along the two support plates 401 , the spring 411 is compressed, and as the push plate 403 continues to slide to the right, the two push rods 410 slide from the inclined groove 409 through the guide groove 407 into the rectangular groove 408. At this time, under the action of the spring 411, the spring 411 drives the two vibration rods 402 to slide back to back along the two support plates 401, so that the two vibration rods 402 hit the first screen 301 and the second screen 302 respectively, so that the first screen 301 and the second screen 302 can vibrate during the swinging process, so that the concrete waste particles that may be stuck in the sieve holes on the first screen 301 and the second screen 302 fall off, effectively avoiding the sieve holes on the first screen 301 and the second screen 302 from being blocked, thereby improving the efficiency of crushing and screening.

When the elastic force of the spring 411 is gradually released, the arc plate 413 squeezes the push rod 410 to slide inside the vibration rod 402 under the action of the two arc plates 413, and the compression spring 412 is compressed, so that the push rod 410 disengages from the rectangular groove 408 and contacts the side of the push plate 403. In the process of the eccentric point of the insertion rod 210 and the disc 209 rotating from the rightmost side to the leftmost side, the disc 209 drives the crushing block 203 to slide to the left along the shell 1 and the fixed plate 202 through the insertion rod 210 and the limiting groove 207. The crushing block 203 drives the first screen 301 to swing upward along the shell 1 through the second connecting rod 304, and the first screen 301 drives the second screen 302 to swing along the shell 1 through the first connecting rod 303. It swings upward, so that the first connecting rod 303 drives the push plate 403 to slide to the left along the two support plates 401 through the third connecting rod 406, so that the push rod 410 on the vibration rod 402 moves along the push plate 403. When the eccentric point of the disc 209 and the insertion rod 210 is at the far left, the push rod 410 is located directly behind the inclined groove 409. Under the action of the compression spring 412, the compression spring 412 drives the push rod 410 to be inserted into the inclined groove 409 on the corresponding side again. Repeating the above movement can repeatedly accumulate force for the vibration rod 402, so that the vibration rod 402 can repeatedly hit the first screen 301 and the second screen 302, thereby improving the efficiency of crushing and screening. After the concrete waste is crushed and processed, the motor 208 can be turned off.

During the swinging of the first screen 301 and the second screen 302, the spring 411 on the vibration rod 402 can be compressed and stored through the inclined groove 409 on the push plate 403, so that the spring 411 drives the vibration rod 402 to dynamically impact the first screen 301 and the second screen 302 during the swinging process. Therefore, with the combination of the two, the efficiency of the impact on the first screen 301 and the second screen 302 is improved, and during the change of the angle of the first screen 301 and the second screen 302, the vibration generated by the impact of the vibration rod 402 is also changing. The difference in vibration frequency also allows the concrete particles that may be blocked in the screen holes to quickly break away, thereby improving the screening efficiency and further improving the efficiency of concrete waste treatment.

The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims (5)

1. A construction waste treatment device, characterized in that it comprises a shell and a crushing mechanism, wherein the crushing mechanism is arranged on the upper side of the shell, and the crushing mechanism is used to crush the construction waste entering the shell; A screening mechanism, the screening mechanism is arranged in the shell and is located below the crushing mechanism, the screening mechanism comprises a first screen having one end hinged to the shell, a second screen hinged in the shell and located below the first screen, the first screen and the second screen are hinged via a first connecting rod, a second connecting rod is hinged to the other end of the first screen, and a free end of the second connecting rod is connected to the crushing mechanism; A vibration mechanism, the vibration mechanism is arranged between the first screen and the second screen, the vibration mechanism comprises two support plates fixedly connected to the shell and distributed vertically, each of the support plates is slidably connected to a vertically extending vibration rod, and the vibration rod is used to vibrate and screen the first screen and the second screen; The crushing mechanism also includes an anti-compression block fixedly connected to the shell, a fixed plate located below the anti-compression block is fixedly connected inside the shell, a crushing block is slidably connected between the upper end of the fixed plate and the shell, the free end of the second connecting rod is hinged to the crushing block, and the opposing surfaces of the crushing block and the anti-compression block are both inclined surfaces; The vibration mechanism further comprises a push plate located between the two support plates, wherein the push plate is provided with a slide groove extending laterally at both vertical ends, and each support plate is fixedly connected with a slider extending into the slide groove on its corresponding side, and a third link is hingedly connected to one end of the push plate close to the first link, and a free end of the third link is hingedly connected to the first link; A guide groove extending transversely is provided at one end of the push plate close to the vibration rod, a rectangular groove connected to one end of the guide groove is provided at one end of the push plate close to the vibration rod, oblique grooves are respectively provided on both sides of the push plate vertically, the other end of the guide groove is connected to the oblique groove, the distance between the two oblique grooves close to the guide groove is smaller than the distance between the two oblique grooves away from the guide groove, and each of the vibration rods is slidably connected to a push rod capable of extending into the oblique groove on its corresponding side; Each of the vibration rods is provided with a spring located outside the support plate, each of the push rods is slidably connected to the vibration rod through a compression spring, arc-shaped plates are respectively provided on both vertical sides of the rectangular groove, the thickness of the two arc-shaped plates at the opposite ends is greater than the thickness of the opposite ends, and each of the push rods can contact the arc-shaped plate on its corresponding side; The hinges of the first screen and the second screen with the shell are located on the same side, one end of the first screen close to the hinge of the first screen with the shell and one end of the second screen away from the hinge of the second screen with the shell are respectively hinged with a blocking plate through a pin shaft, a torsion spring is coaxially arranged on each pin shaft, and the diameter of the screen hole on the first screen is larger than the diameter of the screen hole on the second screen; During the swinging of the first screen and the second screen, the spring on the vibration rod can be compressed and stored through the inclined groove on the push plate, so that the spring drives the vibration rod to dynamically impact the first screen and the second screen during the swinging process. Therefore, with the combination of the two, the efficiency of the impact on the first screen and the second screen is improved. In addition, during the change of the angle of the first screen and the second screen, the vibration generated by the impact of the vibration rod on them is also changing. The difference in vibration frequency also allows concrete particles that may be blocked in the sieve holes to quickly break away. 2. The construction waste treatment equipment according to claim 1 is characterized in that: a plurality of rows of first crushing rods evenly distributed along the slope direction are provided on the inclined surface of the crushing block, and a plurality of rows of second crushing rods evenly distributed along the slope direction are provided on the inclined surface of the pressure-resistant block, and the plurality of rows of the first crushing rods and the plurality of rows of the second crushing rods are staggered. 3. The construction waste treatment equipment according to claim 2 is characterized in that: a clearance groove is provided at the end of the crushing block away from the first crushing rod, a vertically extending limit groove is provided on the side of the clearance groove, a motor is fixedly installed in the shell, a disc is coaxially provided at the output end of the motor, an insertion rod is eccentrically provided at the end of the disc away from the motor, and the free end of the insertion rod extends into the limit groove. 4. The construction waste treatment equipment according to claim 1 is characterized in that: a funnel-shaped lower feed bin is provided in the shell and is located below the second screen, the lower end of the lower feed bin extends out of the shell, and the upper end of the shell is provided with a feed bin connected to the interior thereof. 5. The construction waste treatment equipment according to claim 4 is characterized in that: a discharge trough located above the second screen is opened on the left side of the shell, a storage box is provided on the left side of the shell and located below the discharge trough, a recovery trough is opened on the right side of the shell, a collection box is provided on the right side of the shell and located below the recovery trough, a guide plate with the same slope as the recovery trough is provided in the recovery trough, and the lower end of the second screen can contact the guide plate.