CN114146752A

CN114146752A - Building rubbish reducing mechanism

Info

Publication number: CN114146752A
Application number: CN202111459098.3A
Authority: CN
Inventors: 林燕; 程静亮; 蔡欣明; 于海军; 顾成城
Original assignee: Guangxi Liangwan Construction Co ltd
Current assignee: Guangxi Liangwan Construction Co ltd
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-03-08
Anticipated expiration: 2041-12-02
Also published as: CN114146752B

Abstract

A construction waste crushing device comprises a shell, a pressing plate, an extrusion drive mechanism, a crushing mechanism and a drive mechanism; the shell is provided with a working cavity, a feeding port and a discharging port, the pressing plate is slidably arranged in the working cavity, and the extrusion drive is in drive connection with the pressing plate; the crushing mechanism comprises a rotating base, a rotating rod, a crushing piece and a first connecting rod, wherein the rotating base is arranged on the pressing plate, the rotating rod can be rotatably arranged on the rotating base, an eccentric rod deviating from a rotating center is arranged on the rotating rod, the crushing piece penetrates through the pressing plate and is in sliding connection with the pressing plate, one end of the first connecting rod is hinged with the crushing piece, and the other end of the first connecting rod is in rotating connection with the eccentric rod; the driving mechanism is arranged on the back surface of the pressing plate and is in driving connection with the rotating rod. Building rubbish gets into to the work intracavity from pan feeding mouth department, and the extrusion drive can order about the clamp plate oppression building rubbish, then drives about the quick reciprocating motion of broken piece on the clamp plate through actuating mechanism, carries out the breakage to building rubbish to make bold building rubbish divide into the less fragment of volume.

Description

Building rubbish reducing mechanism

Technical Field

The invention relates to the field of construction equipment, in particular to a construction waste crushing device.

Background

Along with the acceleration of the urbanization process and the ceaseless development of economy, the city accelerates the metabolism speed, a large number of old buildings are dismantled, so that more construction wastes are generated, and meanwhile, some construction wastes are generated when the buildings are newly built. Common solid wastes on construction sites of construction projects are mainly: building waste soil, waste steel and iron reinforcement, broken glass, waste brick, wood, waste decoration and the like. At present, the quantity of the construction waste in China accounts for 30% -40% of the total quantity of the urban waste, and the quantity of the generated construction waste is extremely remarkable. In general, construction waste is treated by recovering and pulverizing it, and using the pulverized powder for brick making or the like, it is reused in the construction field.

However, for some construction wastes with large volumes, before the construction wastes are treated by a traditional crushing device, a breaking hammer is manually used or an excavator breaking hammer is used for breaking large-volume water mud blocks so as to reduce the volume of the construction wastes, and then the construction wastes can be added into the traditional crushing device for crushing, so that the crushing process is troublesome, and the burden of constructors is increased.

Disclosure of Invention

Technical problem to be solved

In order to solve the problems, the construction waste crushing device provided by the invention can crush large construction waste and reduce the construction pressure of constructors.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme:

a construction waste crushing apparatus comprising:

the device comprises a shell, a feeding hole and a discharging hole, wherein the shell is provided with a working cavity, and the feeding hole and the discharging hole are communicated with the working cavity;

the pressing plate is arranged in the working cavity in a sliding manner, the front surface of the pressing plate is a working surface, and the back surface of the pressing plate is provided with a push rod;

the extrusion drive is arranged on the shell and is in drive connection with the push rod so as to drive the pressing plate to slide in the working cavity;

the crushing mechanism comprises a rotating base, a rotating rod, a crushing piece and a first connecting rod; the rotating base is arranged on the back surface of the pressing plate; the rotating rod is rotatably arranged on the rotating base and is also provided with an eccentric rod which is arranged to deviate from the rotating center; the crushing pieces penetrate through the pressing plate and are in sliding connection; one end of the first connecting rod is hinged with the crushing piece, and the other end of the first connecting rod is rotatably connected with the eccentric rod;

and the driving mechanism is arranged on the back surface of the pressing plate and is in driving connection with the rotating rod.

Preferably, the rotating rod is symmetrically connected with two eccentric rods, the rotating rod and the eccentric rods are fixedly connected through a connecting plate, and the two eccentric rods are all rotatably connected with a first connecting rod.

Preferably, the drive mechanism comprises:

the engine is arranged on the back surface of the pressure plate, and an output turntable is arranged at the output end of the engine;

the transmission turntable is rotatably arranged on the rotating base and is connected with the output turntable through a chain, and a connecting boss which is arranged to deviate from the rotating center is also arranged on the transmission turntable;

and one end of the second connecting rod is rotatably connected with the connecting boss, and the other end of the second connecting rod is rotatably connected with the eccentric rod.

Preferably, the back of the pressing plate is also provided with a sliding block, and the rotating base is in sliding connection with the sliding block; this building rubbish reducing mechanism still includes flexible drive, and flexible drive is installed on the clamp plate back to be connected with the rotation base drive, so that the rotation base slides on the sliding block.

Preferably, the back of the pressing plate is also provided with a sliding block, and the rotating base is connected with the sliding block in a sliding manner; this building rubbish reducing mechanism still pushes away the piece including pushing away, and the one end that the clamp plate was kept away from to the push rod still is equipped with the telescopic link, pushes away and is equipped with flexible groove on the piece, and the telescopic link slidable is in flexible inslot to push away the piece can with the push rod butt, and extrusion driven output with push away the piece and be connected, push away and still be equipped with the connecting rod on the piece, a connecting rod pot head is located on the dwang.

Preferably, the back of the pressure plate is also provided with a mounting plate, the mounting plate is provided with a mounting groove, the rotating base is also connected with a sliding plate, and the sliding plate slides in the mounting groove; the transmission turntable is rotatably mounted on the sliding plate.

Preferably, the driving mechanism is further provided with an elastic part, a swinging rod and an adjusting turntable rotating on the swinging rod, the swinging rod is rotatably arranged on the mounting plate, the elastic part is respectively connected with the mounting plate and the swinging rod, and the adjusting turntable is connected with the chain in a matching manner.

Preferably, the crushing mechanism is provided with two groups, the transmission turntables, the second connecting rod, the elastic piece, the swinging rod and the adjusting turntables are correspondingly provided with two groups, the output end of the engine is provided with two output turntables, and the two output turntables are respectively connected with the two groups of transmission turntables and the adjusting turntables through chain transmission.

Preferably, the construction waste crushing device further comprises a safety pin, a jack communicated with the working cavity is arranged on the shell, the safety pin can penetrate through the jack and extend into the working cavity, and a handle is arranged on the safety pin.

Preferably, the oil tank and a hard connecting pipe communicated with the oil tank are further mounted on the shell, and the engine is communicated with the hard connecting pipe through a hose.

(III) advantageous effects

The invention has the beneficial effects that: a construction waste crushing device comprises a shell, a pressing plate, an extrusion drive mechanism, a crushing mechanism and a drive mechanism; the shell is provided with a working cavity, a feeding port and a discharging port, the pressing plate is slidably arranged in the working cavity, and the extrusion drive is in drive connection with the pressing plate; the crushing mechanism comprises a rotating base, a rotating rod, a crushing piece and a first connecting rod, wherein the rotating base is arranged on the pressing plate, the rotating rod can be rotatably arranged on the rotating base, an eccentric rod deviating from a rotating center is arranged on the rotating rod, the crushing piece penetrates through the pressing plate and is in sliding connection with the pressing plate, one end of the first connecting rod is hinged with the crushing piece, and the other end of the first connecting rod is in rotating connection with the eccentric rod; the driving mechanism is arranged on the back surface of the pressing plate and is in driving connection with the rotating rod. Building rubbish gets into to the work intracavity from pan feeding mouth department, and the extrusion drive can order about the clamp plate oppression building rubbish, then drives about the quick reciprocating motion of broken piece on the clamp plate through actuating mechanism, carries out the breakage to building rubbish to make bold building rubbish divide into the less fragment of volume.

(IV) description of the drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:

FIG. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the inner structure of the working chamber;

FIG. 3 is a schematic view of a connection structure of the pressing drive and the pressing plate;

FIG. 4 is a schematic structural view of a pressing plate and a crushing mechanism;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is a schematic view of the drive mechanism (chain not shown);

FIG. 7 is a schematic view of an embodiment with telescopic drive;

FIG. 8 is a schematic view of an embodiment having a push member;

FIG. 9 is a schematic view of the ejector member ejecting the crushing member;

FIG. 10 is a schematic view of the pushing member pulling back the crushing member;

FIG. 11 is a schematic view of the platen;

FIG. 12 is a schematic structural view of the pusher;

fig. 13 is a schematic structural view of the crushing mechanism;

FIG. 14 is a schematic view of a rotating base;

in the figure, 1 shell, 2 pressing plates, 3 extrusion driving, 4 crushing mechanisms, 5 driving mechanisms, 6 telescopic driving, 7 pushing pieces, 8 safety pins, 10 working chambers, 11 feeding ports, 12 discharging ports, 13 jacks, 14 oil tanks, 15 hard connecting pipes, 120 gates, 20 push rods, 21 sliding blocks, 22 mounting plates, 200 telescopic rods, 220 sliding grooves, 40 rotating bases, 41 rotating rods, 42 crushing pieces, 43 first connecting rods, 400 sliding plates, 410 eccentric rods, 411 connecting plates, 50 engines, 51 transmission turntables, 52 second connecting rods, 53 swinging rods, 54 adjusting turntables, 500 output turntables, 510 connecting bosses, 70 telescopic grooves, 71 connecting rods, a chains and b hoses.

(V) detailed description of the preferred embodiments

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 to 14, a construction waste crushing apparatus includes:

the device comprises a shell 1, wherein a working cavity 10, a feeding port 11 communicated with the working cavity 10 and a discharging port 12 are arranged on the shell 1;

the pressing plate 2 is arranged in the working cavity 10 in a sliding mode, the front face of the pressing plate 2 is a working face, and the back face of the pressing plate 2 is provided with a push rod 20;

the extrusion drive 3 is arranged on the shell 1 and is in drive connection with the push rod 20 so as to drive the pressing plate 2 to slide in the working cavity 10;

a crushing mechanism 4, the crushing mechanism 4 including a rotating base 40, a rotating lever 41, a crushing member 42, and a first link 43; the rotating base 40 is installed on the back surface of the pressure plate 2; the rotating rod 41 is rotatably arranged on the rotating base 40, and an eccentric rod 410 which is arranged to deviate from the rotating center is also arranged on the rotating rod 41; the crushing member 42 is disposed through the platen 2 and slidably coupled thereto; one end of the first connecting rod 43 is hinged with the crushing member 42, and the other end is rotatably connected with the eccentric rod 410;

and the driving mechanism 5 is arranged on the back surface of the pressure plate 2, and the driving mechanism 5 is in driving connection with the rotating rod 41.

Specifically, in this embodiment, the discharge port 12 is provided with a gate 120, and the discharge port 12 is further connected to a lower level crushing device for crushing the construction waste with smaller lump size, and in this device, two pressing plates 2 are symmetrically arranged at two sides of the feeding port 11; the extrusion drive 3 is a hydraulic cylinder, the cylinder body part of the hydraulic cylinder is arranged on the outer side of the shell 1, and the output rod part of the hydraulic cylinder penetrates through the shell 1 and extends into the working cavity 10 to be in driving connection with the push rod 20. During the use, building rubbish drops into to the working chamber 10 in from pan feeding mouth 11 department, the starting equipment, drive 3 through the extrusion and order about clamp plate 2 and slide in the working chamber 10, two clamp plates 2 move in opposite directions, the working face of clamp plate 2 oppresses to building rubbish department, then drive mechanism 5 through the rethread orders about the broken piece 42 of wearing to establish on clamp plate 2 and carry out quick reciprocating motion, so that broken piece 42 carries out the breakage to building rubbish, thereby make bold building rubbish be the less fragment of volume by the split, open the gate 120 of discharge gate 12 department again, make little fragment drop and transfer to carry out subsequent processing in the reducing mechanism of subordinate from discharge gate 12. Wherein, broken piece 42 is equipped with a plurality ofly, and through the quick reciprocating swing of eccentric rod 410, drive a plurality of broken pieces 42 together quick reciprocating telescopic motion, be equal to and install a plurality of quartering hammers on clamp plate 2, simulation constructor uses the quartering hammer to carry out broken process to the building rubbish piece. The process effectively reduces the construction pressure of constructors.

It should be noted that the construction waste applied in this embodiment is construction waste with low hardness, such as earthwork or cement block.

Further, two eccentric rods 410 are symmetrically connected to the rotating rod 41, the rotating rod 41 and the eccentric rods 410 are fixedly connected through a connecting plate 411, and the first connecting rod 43 and the crushing member 42 hinged to the first connecting rod 43 are rotatably connected to the two eccentric rods 410. Wherein, the eccentric rod 410 only need carry on the umbrella-type swing of small amplitude can, need not accomplish complete circular motion, shortened the swing cycle of eccentric rod 410 greatly, accelerated the swing speed of eccentric rod 410 promptly, realize the quick reciprocal flexible of broken piece 42, and all correspond on two eccentric rods 410 and be connected with a plurality of broken pieces 42. The eccentric rod 410 and the rotating rod 41 are fixedly connected through the connecting plate 411, the structural stability of the eccentric rod 410 and the rotating rod 41 can be improved, and the possibility of bending of the eccentric rod 410 and the rotating rod 41 is effectively reduced.

Further, the drive mechanism 5 includes:

the engine 50, the engine 50 is mounted on the back of the pressure plate 2, the output end of the engine 50 is provided with an output turntable 500;

the transmission turntable 51, the transmission turntable 51 is rotatably arranged on the rotating base 40, the transmission turntable 51 is connected with the output turntable 500 through a chain a, and the transmission turntable 51 is also provided with a connecting boss 510 which is arranged by deviating from the center of rotation;

and a second connecting rod 52, one end of which is rotatably connected with the connecting boss 510, and the other end of which is rotatably connected with the eccentric rod 410.

Specifically, in order to ensure strong output power, in this embodiment, an internal combustion engine is used as an engine, an output end of the internal combustion engine is connected to a transmission, and an output turntable 500 is installed at an output end of the transmission. The connecting boss 510 rotates around the axis of the transmission turntable 51, and the rotation of the connecting boss 410 can be transmitted to the eccentric rod 410 through the second connecting rod 52, so that the eccentric rod 410 swings, i.e. in the process, the rotation of the transmission turntable 51 drives the rotation rod 41 to rotate.

In addition, in order to prevent the construction waste from damaging or injuring the tip of the crushing member 42 exposed from the working surface of the pressing plate 2 in the process of entering the working chamber 10, in one embodiment of the invention, the back surface of the pressing plate 2 is further provided with a sliding block 21, and the rotating base 40 is in sliding connection with the sliding block 21; the construction waste crushing device further comprises a telescopic drive 6, wherein the telescopic drive 6 is installed on the back surface of the pressing plate 2 and is in driving connection with the rotating base 40, so that the rotating base 40 slides on the sliding block 21. When the garbage is put into the feeding port 11, the telescopic driving device 6 is in an activated state and moves the rotating base 40 in a direction away from the back of the pressing plate 2, and the crushing piece 42 moves backwards along with the rotating base 40 and retracts into the pressing plate 2, so that the tip of the crushing piece 42 is not exposed out of the working surface of the pressing plate 2. After the construction waste is put into, flexible drive 6 orders about rotation base 40 again and resets, and the tip of broken piece 42 can be followed the working face of clamp plate 2 and exposed, later restarts extrusion drive 3, is close to construction waste with clamp plate 2, and the quick concertina movement of broken piece 42 is realized to rethread actuating mechanism 5 to carry out the breakage to construction waste.

For the same purpose, in another embodiment of the present invention, the back of the pressing plate 2 is also provided with a sliding block 21, and the rotating base 40 is slidably connected with the sliding block 21; this building rubbish reducing mechanism still includes top pushing member 7, and the one end that clamp plate 2 was kept away from to push rod 20 still is equipped with telescopic link 200, pushes away and is equipped with flexible groove 70 on 7, and telescopic link 200 slidable is in flexible groove 70 to push away a 7 can with the push rod 20 butt, and the output of extrusion drive 3 is connected with pushing away a 7, still is equipped with connecting rod 71 on pushing away a 7, and connecting rod 71 pot head is located on dwang 41. The function of the pushing piece 7 is similar to that of the telescopic driving 6, but the pushing piece 7 does not generate power per se, and the power source of the pushing piece 7 is the extrusion driving 3, namely the pushing piece 7 is driven by a hydraulic cylinder. Before the construction waste is thrown in, the extrusion drive 3 is contracted and reset firstly, that is, the output rod of the extrusion drive 3 drives the pushing piece 7 to retreat, and the pushing piece 7 drives the rotating rod 41 to retreat through the connecting rod 71 simultaneously, the crushing piece 42 also retracts behind the working face of the pressing plate 2, then when the retreating stroke of the pushing piece 7 exceeds the length of the telescopic rod 200, the pushing piece 7 pulls the push rod 20, so that the pressing plate 2 moves backwards along with the pushing piece, and then the construction waste is allowed to be thrown in from the material inlet 11. In the working process of the pressing plate 2, the above process is vice versa, the output rod of the extrusion drive 3 extends and pushes the pushing element 7, so that the pushing element 7 moves forwards, the pushing element 7 simultaneously enables the rotating rod 41 to move forwards through the connecting rod 71, so that the crushing element 42 also extends out of the working surface of the pressing plate 2, when the forward movement of the pushing element 7 reaches the length of the telescopic rod 200, the pushing element 7 abuts against the push rod 20, and when the output rod of the extrusion drive 3 continues to extend forwards, the pressing plate 2 is pushed to move forwards and is pressed onto the construction waste.

Further, when the rotating base 40 slides relative to the sliding block 21, both the transmission turntable 51 and the second connecting rod 52 need to move in parallel with the rotating base 40, so in this embodiment, the back of the pressing plate 2 is further provided with a mounting plate 22, the mounting plate 22 is provided with a mounting groove 220, the rotating base 40 is further connected with a sliding plate 400, and the sliding plate 400 slides in the mounting groove 220; the transmission rotary plate 51 is rotatably installed on the sliding plate 400, and since the sliding plate 400 is integrally provided with the rotating base 40, the transmission rotary plate 51 and the second connecting rod 52 are also moved together with the rotating base 40, and the arrangement of the sliding plate 400 can also prevent the chain a from colliding with the eccentric rod 410 or the second connecting rod 52.

Further, in order to keep the output turntable 500 in a normal transmission relationship with the transmission turntable 51 when the rotating base 40 moves, in the present invention, the driving mechanism 5 is further provided with an elastic member, a swinging rod 53 and an adjusting turntable 54 rotating on the swinging rod 53, the swinging rod 53 is rotatably provided on the mounting plate 22, the elastic member is respectively connected with the mounting plate 22 and the swinging rod 53, and the adjusting turntable 54 is connected with the chain a in a matching manner. The elastic member is a torsion spring, and is sleeved on the rotating shaft of the swing rod 53, and two ends of the torsion spring respectively abut against the mounting plate 22 and the swing rod 53. Under normal conditions, the swinging rod 53 is under the elastic force of the elastic element to make the adjusting dial 54 tightly press on the chain a, and the chain a is in a tight state all the time, when the rotating base 40 moves along the direction of the sliding block 21, because the length of the chain a does not change, the chain a will be pulled to narrow, and the adjusting dial 54 and the swinging rod 53 will swing to the inner side of the chain a along with the chain a, at this time, the elastic element will accumulate energy until the rotating base 40 resets, the elastic element will release energy and make the adjusting dial 54 swing outwards again. With the above arrangement, the chain a is always in a tight state, i.e. the output turntable 500 always keeps a normal transmission relationship with the transmission turntable 51.

In addition, it should be noted that the output rotary disc, the transmission rotary disc and the adjusting rotary disc are all provided with tooth-shaped structures, and the tooth-shaped structures and the elastic pieces are not shown in the attached drawings.

Furthermore, the crushing mechanism 4 is provided with two groups, two transmission turntables 51, two second connecting rods 52, two elastic pieces, two swinging rods 53 and two adjusting turntables 54 are correspondingly provided, the output end of the engine 50 is provided with two output turntables 500, and the two output turntables 500 are respectively in transmission connection with the two groups of transmission turntables 51 and the adjusting turntables 54 through chains a.

Furthermore, in order to ensure the personal safety of maintenance personnel during equipment maintenance, the construction waste crushing device also comprises a safety pin 8, a jack 13 communicated with the working cavity is arranged on the shell 1, the safety pin 8 can penetrate through the jack 13 and extend into the working cavity, and a handle is arranged on the safety pin 8. When the safety pin 8 is inserted into the insertion hole 13, one end of the safety pin 8 extends into the working cavity 10, two ends of the safety pin 8 can be abutted against the two pressing plates 2 on two sides, and when the equipment is started accidentally, the safety pin 8 can prevent the two pressing plates 2 from approaching each other.

Further, the housing 1 is also provided with an oil tank 14 and a hard connecting pipe 15 connected with the oil tank 14, and the engine 50 is connected with the hard connecting pipe 15 through a hose b. In this embodiment, an internal combustion engine is installed on each of the two pressure plates 2, and two hard connecting pipes 15 are connected to the oil tank 14, wherein the hard connecting pipes 15 extend to both sides of the housing 1 and penetrate into the working chamber 10, and then are connected to the internal combustion engine through hoses b.

It should be noted that, in the present invention, the transmission box provided at the output end of the internal combustion engine is also provided with a hydraulic torque converter, when the crushing member 42 is stuck and cannot move, the hydraulic torque converter automatically disconnects the output shaft of the transmission box from the output shaft of the internal combustion engine, so as to prevent the internal combustion engine from flameout, and simultaneously, an alarm is given to remind a worker to handle the situation in time.

On the other hand, the extrusion drive 3 is also provided with a pressure sensor, when the pressure plate 2 is clamped and cannot advance, the output shaft of the extrusion drive 3 is blocked, the output shaft of the extrusion drive 3 still continuously increases the output pressure, and when the output pressure reaches a critical value, the pressure sensor is triggered to stop the output of the extrusion drive 3 and give an alarm.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims

1. The utility model provides a building rubbish reducing mechanism which characterized in that includes:

the device comprises a shell (1), wherein a working cavity (10), a feeding port (11) communicated with the working cavity (10) and a discharging port (12) are formed in the shell (1);

the pressing plate (2) is slidably arranged in the working cavity (10), the front surface of the pressing plate (2) is a working surface, and the back surface of the pressing plate is provided with a push rod (20);

the extrusion drive (3) is arranged on the shell (1) and is in driving connection with the push rod (20) so as to drive the pressing plate (2) to slide in the working cavity (10);

a crushing mechanism (4), the crushing mechanism (4) comprising:

the rotating base (40), the said rotating base (40) is installed on the back of the pressure plate (2);

the rotating rod (41), the rotating rod (41) can be rotatably arranged on the rotating base (40), and an eccentric rod (410) which is arranged to deviate from the center of rotation is further arranged on the rotating rod (41);

a crushing member (42), the crushing member (42) being disposed through the platen (2) and slidably connected;

a first connecting rod (43), one end of the first connecting rod (43) is hinged with the crushing piece (42), and the other end of the first connecting rod (43) is rotatably connected with the eccentric rod (410);

and the driving mechanism (5) is installed on the back surface of the pressing plate (2) and is in driving connection with the rotating rod (41).

2. The construction waste crushing device as claimed in claim 1, wherein two eccentric rods (410) are symmetrically connected to the rotating rod (41), the rotating rod (41) and the eccentric rods (410) are fixedly connected through a connecting plate (411), and a first connecting rod (43) is rotatably connected to each of the two eccentric rods (410).

3. A construction waste crushing apparatus according to claim 1, wherein the drive mechanism (5) comprises:

the engine (50), the engine (50) is installed on the back of the pressure plate (2), and an output turntable (500) is arranged at the output end of the engine (50);

the transmission turntable (51), the transmission turntable (51) is rotatably arranged on the rotating base (40), the transmission turntable (51) is connected with the output turntable (500) through a chain (a), and the transmission turntable (51) is further provided with a connecting boss (510) which is arranged in a mode of deviating from the center of rotation;

and one end of the second connecting rod (52) is rotatably connected with the connecting boss (510), and the other end of the second connecting rod (52) is rotatably connected with the eccentric rod (410).

4. The construction waste crushing device as claimed in claim 3, wherein a sliding block (21) is further arranged on the back of the pressing plate (2), and the rotating base (40) is connected with the sliding block (21) in a sliding manner;

the building rubbish smashing device further comprises a telescopic drive (6), wherein the telescopic drive (6) is installed on the back face of the pressing plate (2) and is in drive connection with the rotating base (40) so that the rotating base (40) can slide on the sliding block (21).

5. The construction waste crushing device as claimed in claim 3, wherein a sliding block (21) is further arranged on the back of the pressing plate (2), and the rotating base (40) is connected with the sliding block (21) in a sliding manner;

this building rubbish reducing mechanism still pushes away piece (7) including the top, the one end that clamp plate (2) were kept away from in push rod (20) still is equipped with telescopic link (200), it is equipped with flexible groove (70) on pushing away piece (7), telescopic link (200) slidable is in flexible groove (70), and push away piece (7) can with push rod (20) butt, and the output of extrusion drive (3) with push away piece (7) and connect, still be equipped with connecting rod (71) on pushing away piece (7), connecting rod (71) pot head is located on dwang (41).

6. The construction waste crushing device according to claim 4 or 5, wherein a mounting plate (22) is further arranged on the back surface of the pressing plate (2), a mounting groove (220) is formed in the mounting plate (22), a sliding plate (400) is further connected to the rotating base (40), and the sliding plate (400) slides in the mounting groove (220); the transmission turntable (51) is rotatably mounted on the sliding plate (400).

7. A construction waste crushing device according to claim 6, wherein the driving mechanism (5) is further provided with an elastic member, a swinging rod (53) and an adjusting turntable (54) rotating on the swinging rod (53), the swinging rod (53) is rotatably arranged on the mounting plate (22), the elastic member is respectively connected with the mounting plate (22) and the swinging rod (53), and the adjusting turntable (54) is in fit connection with the chain (a).

8. The construction waste crushing device as claimed in claim 7, wherein the crushing mechanism (4) is provided with two sets, and the transmission rotary table (51), the second connecting rod (52), the elastic member, the swinging rod (53) and the adjusting rotary table (54) are correspondingly provided with two sets, and the output end of the engine (50) is provided with two output rotary tables (500), and the two output rotary tables (500) are respectively in transmission connection with the two sets of transmission rotary tables (51) and the adjusting rotary table (54) through a chain (a).

9. The construction waste crushing device as claimed in claim 1, characterized in that the device further comprises a safety pin (8), the housing (1) is provided with a jack (13) communicated with the working chamber (10), the safety pin (8) can pass through the jack (13) and extend into the working chamber (10), and the safety pin (8) is provided with a handle.

10. A construction waste crushing device according to claim 3, wherein an oil tank (14) and a hard connecting pipe (15) connected with the oil tank (14) are further installed on the housing (1), and the engine (50) is connected with the hard connecting pipe (15) through a hose (b).