A construction waste crushing and processing device

Abstract

The present invention relates to the technical field of building waste crushing, and provides a building waste crushing and processing device, comprising a bracket, a shell mounted on the bracket, a feed hopper mounted on the shell, a crushing assembly arranged adjacent to the feed hopper, a first crushing assembly and a second crushing assembly respectively supported on the shell in a rotatable manner, and a screening assembly mounted on the shell; the crushing assembly comprises a motor mounted on the shell, a driving wheel mounted on the output shaft of the motor, a driving disk mounted on the driving wheel, a fixed rack fixed on the upper side of a slot of the shell, a sliding rack slidably engaged in the slot, a driving gear engaged between the fixed rack and the sliding rack, a connecting frame mounted on the driving gear, a first connecting rod hinged between the driving disk and the connecting frame, and a crushing member mounted on the sliding rack; the driving wheel drives the first crushing assembly to rotate, the first crushing assembly drives the second crushing assembly to rotate, and the second crushing assembly drives the screening assembly to reciprocate relative to the shell.

Description

Technical Field

[0001] The invention relates to the technical field of building waste crushing, and in particular to a building waste crushing and processing device. Background Art

[0002] Construction waste refers to the waste such as slag, abandoned soil, and abandoned materials generated during the construction of various buildings. These construction wastes need to be processed accordingly. Some of the construction waste is large in size and needs to be crushed before transportation. The construction waste is crushed into small particles so that it can be easily transported and stored. However, the existing construction waste crushing and processing equipment has a poor crushing effect and needs to be crushed repeatedly. In addition, during the crushing process, the crushing is not sufficient due to accumulation and the construction waste crushing and processing equipment is blocked. It is necessary to stop adding garbage midway to clear it, resulting in low work efficiency. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a construction waste crushing and processing device that can solve or at least alleviate the above-mentioned problems, so as to improve the crushing effect and improve work efficiency.

[0004] The technical solution provided by the present invention is: a construction waste crushing and processing device, comprising a bracket, a shell mounted on the bracket, a feed hopper mounted on the upper end of the shell, a crushing assembly mounted on the shell and adjacent to the feed hopper, a first crushing assembly and a second crushing assembly rotatably supported on the shell, and a screening assembly mounted on the lower end of the shell; the crushing assembly comprises a motor mounted on the shell, a driving wheel mounted on the output shaft of the motor, a driving disk mounted on the driving wheel, a fixed rack fixed on the upper side of the slot of the shell, a sliding rack slidably engaged in the slot, a driving gear engaged between the fixed rack and the sliding rack, a connecting frame mounted on the driving gear, a first connecting rod hinged between the driving disk and the connecting frame, and a crushing member mounted on the sliding rack; the driving wheel drives the first crushing assembly to rotate through a transmission member, the first crushing assembly drives the second crushing assembly to rotate, and the second crushing assembly drives the screening assembly to reciprocate relative to the shell.

[0005] In some embodiments, the driving disk is installed on the side of the driving wheel away from the motor and is a circular disk; a first connecting column is provided on the side of the driving disk away from the driving wheel, and the first connecting column is set away from the center of the driving disk; the driving gear is rotatably supported on the connecting frame, and a second connecting column is provided on the side of the connecting frame away from the driving gear; the two ends of the first connecting rod are rotatably connected to the first connecting column and the second connecting column respectively.

[0006] In some embodiments, the first crushing assembly includes a first rotating shaft, a driven wheel, a first gear and a first crushing roller; the first rotating shaft is rotatably supported on the first side plate and the second side plate of the shell; the first crushing roller is mounted on the first rotating shaft; the driven wheel is mounted on the end of the first rotating shaft protruding from the first side plate, and the driving wheel drives the driven wheel to rotate through a transmission member; the first gear is mounted on the side of the driven wheel away from the first rotating shaft, and the first crushing assembly drives the second crushing assembly to rotate through the first gear.

[0007] In some embodiments, the second crushing assembly includes a second rotating shaft, a second gear, a second crushing roller and a rotating disk; the second rotating shaft is arranged parallel to the first rotating shaft and is rotatably supported on the first side plate and the second side plate; the second crushing roller is mounted on the second rotating shaft; the second gear is mounted on the end of the second rotating shaft protruding from the first side plate, and the second gear is engaged with the first gear; the rotating disk is mounted on the end of the second rotating shaft protruding from the second side plate, and the rotating disk is in the shape of a disk, and a third connecting column is arranged on the side of the rotating disk away from the second rotating shaft, and the third connecting column is arranged offset from the center of the rotating disk, and the second connecting rod is hinged between the rotating disk and the screening assembly.

[0008] In some embodiments, the screening assembly includes a moving block movably mounted on the second side plate, a screening plate driven by the moving block, and a first elastic member and a second elastic member respectively mounted between the screening plate and the housing.

[0009] In some embodiments, the moving block is slidably mounted on the lower end of the second side plate; a recessed groove is provided on the outer side of the second side plate, the recess is arranged adjacent to the lower end of the second side plate, and the moving block is partially engaged in the recess.

[0010] In some embodiments, a first protrusion and a second protrusion are provided at the lower end of the second side plate, the first protrusion and the second protrusion are spaced a certain distance apart, and a pillar is installed between the first protrusion and the second protrusion; the moving block is U-shaped, and the two legs of the U-shaped moving block are respectively arranged as a connecting part and a coupling part; the connecting part is provided with a through hole, and the pillar passes through the through hole; the coupling part is partially engaged in the groove; a fourth connecting column is provided on the side of the moving block facing away from the second side plate, and the two ends of the second connecting rod are respectively rotatably connected to the third connecting column on the rotating disk and the fourth connecting column of the moving block.

[0011] In some embodiments, a first connection portion and a second connection portion are provided on one side of the sieve plate adjacent to the second side plate, the moving block is located between the first connection portion and the second connection portion, and the support passes through the first connection portion and the second connection portion.

[0012] In some embodiments, a first baffle and a second baffle are respectively provided on both sides of the screening plate; a first mounting column is respectively provided at one end of the first baffle and the second baffle adjacent to the first side plate, and a second mounting column is respectively provided on both sides of the first side plate, and the first elastic member and the second elastic member are respectively installed on the corresponding mounting columns.

[0013] In some embodiments, a derivation plate is mounted on the bracket, and the derivation plate is tilted and located below the screening plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are at least:

[0015] 1. The construction waste crushing and processing device provided by the present invention can improve the crushing effect and improve the work efficiency.

[0016] 2. The crushing assembly in the present invention can preliminarily crush the construction waste from the feed hopper to prevent the construction waste entering the shell from being too large in size.

[0017] 3. In the present invention, the construction waste that has been initially crushed by the crushing assembly enters between the first crushing assembly and the second crushing assembly for further crushing; at the same time, the rotating disk of the second crushing assembly rotates with the rotation of the second rotating shaft, and at the same time, with the cooperation of the second connecting rod, the third connecting column and the fourth connecting column, the moving block is driven to reciprocate relative to the shell, thereby driving the screening plate to reciprocate relative to the shell to screen the construction waste falling on the screening plate.

[0018] 4. The construction waste crushing and processing device provided by the present invention can discharge large-sized construction waste remaining on the screening plate, thereby preventing the construction waste crushing and processing device from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a construction waste crushing and processing device according to an embodiment of the present invention is shown.

[0020] Figure 2 Shows Figure 1 A three-dimensional view of the construction waste crushing and processing device from another direction is shown.

[0021] Figure 3 Shows Figure 1 Another stereoscopic view of the construction waste crushing and processing device is shown, in which the first side plate is omitted.

[0022] Figure 4Shows Figure 1 Another stereoscopic view of the construction waste crushing and processing device is shown, in which the feed hopper is omitted.

[0023] Figure 5 Shows Figure 1 A three-dimensional diagram of some components of a construction waste crushing and processing device is shown.

[0024] Figure 6 Shows Figure 1 The exploded view of the construction waste crushing and processing device shown in FIG. 1 , in which some components are omitted.

[0025] Explanation of reference numerals: 1-feed hopper; 2-housing; 21-first side plate; 211-slot; 22-second side plate; 221-slide; 222-groove; 223-first protrusion; 224-second protrusion; 23-third side plate; 24-fourth side plate; 3-crushing assembly; 31-motor; 32-driving wheel; 33-driving disc; 331-first connecting column; 34-first connecting rod; 35-connecting frame; 351-second connecting column; 36-driving gear; 37-fixed rack; 38-sliding rack; 39-crushing member; 391-support member; 41-first guide plate; 42-second guide plate; 5-transmission member; 6-first crushing group Part; 61-first rotating shaft; 62-driven wheel; 63-first gear; 64-first crushing roller; 7-second crushing assembly; 71-second rotating shaft; 72-second gear; 73-rotating disk; 74-third connecting column; 75-second connecting rod; 76-second crushing roller; 8-screening assembly; 81-moving block; 811-connecting part; 812-joining part; 813-perforation; 82-fourth connecting column; 83-screening plate; 831-first connecting part; 832-second connecting part; 833-first baffle; 834-second baffle; 84-pillar; 85-first elastic member; 86-second elastic member; 9-bracket; 91-export plate. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and should not be understood as limitations on the present invention.

[0030] In the present invention, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. Relevant scientific research or technical personnel in this field can determine the specific meanings of the above terms in the present invention according to specific circumstances, and they should not be understood as limiting the present invention.

[0031] like Figures 1 to 3 As shown, the construction waste crushing and processing device provided by the present invention includes a bracket 9, a shell 2, a feed hopper 1, a crushing assembly 3, a first crushing assembly 6, a second crushing assembly 7 and a screening assembly 8. The shell 2 is mounted on the bracket 9. The shell 2 is roughly a hollow cylinder with openings at both ends. The feed hopper 1 is mounted on the upper end of the shell 2. The feed hopper 1 can adopt an existing structure in the prior art, which is not described in detail here. The crushing assembly 3 is mounted on the shell 2 and is arranged adjacent to the feed hopper 1 so as to be able to perform preliminary crushing on the construction waste from the feed hopper 1 and prevent the size of the construction waste entering the shell 2 from being too large. The first crushing assembly 6 and the second crushing assembly 7 are rotatably supported on the shell 2, respectively. The screening assembly 8 is mounted on the lower end of the shell 2.

[0032] The housing 2 includes a first side plate 21, a second side plate 22 disposed opposite to the first side plate 21, and a third side plate 23 and a fourth side plate 24 disposed between the first side plate 21 and the second side plate 22, respectively. Figure 4, a slot 211 is provided at one end of the first side plate 21 adjacent to the feed hopper 1, and the slot 211 partially penetrates the first side plate 21. A recessed slide 221 is provided on the inner side of one end of the second side plate 22 adjacent to the feed hopper 1. The crushing assembly 3 includes a motor 31 mounted on the third side plate 23, a driving wheel 32 mounted on the output shaft of the motor 31, a driving disc 33 mounted on the driving wheel 32, a fixed rack 37 fixed on the upper side of the slot 211, a sliding rack 38 slidably engaged in the slot 211, a driving gear 36 engaged between the fixed rack 37 and the sliding rack 38, a connecting frame 35 mounted on the driving gear 36, a first connecting rod 34 hinged between the driving disc 33 and the connecting frame 35, and a crushing member 39 mounted on the sliding rack 38. Preferably, the driving wheel 32 is a sprocket or a pulley. The driving wheel 32 drives the first crushing assembly 6 to rotate through the transmission member 5. Preferably, the transmission member 5 is a chain or a belt. The driving disc 33 is mounted on the side of the driving wheel 32 away from the motor 31, and is generally a circular disc. A first connecting column 331 is provided on the side of the driving disc 33 away from the driving wheel 32, and the first connecting column 331 is arranged away from the center of the driving disc 33. The driving gear 36 is rotatably supported on the connecting frame 35. A second connecting column 351 is provided on the side of the connecting frame 35 away from the driving gear 36. The two ends of the first connecting rod 34 are rotatably connected to the first connecting column 331 and the second connecting column 351, respectively. Preferably, the length of the fixed rack 37 is less than the length of the sliding rack 38. The crushing member 39 is located inside the housing 2 and is arranged adjacent to the feed hopper 1, and the construction waste from the feed hopper 1 is preliminarily crushed by the crushing member 39. Preferably, a support member 391 is provided on the end of the crushing member 39 away from the sliding rack 38, and the support member 391 is slidably engaged in the slide groove 221 of the second side plate 22, so as to be able to stably support the crushing member 39 in the housing 2. Also preferably, a plurality of protrusions are provided on the side of the crushing member 39 .

[0033] When the motor 31 drives the driving wheel 32 to rotate, the driving wheel 32 also drives the driving disk 33 to rotate, so that the first connecting rod 34 can drive the connecting frame 35 to reciprocate relative to the first side plate 21 through the first connecting column 331 and the second connecting column 351, and the movement of the connecting frame 35 can make the driving gear 36 reciprocate relative to the first side plate 21, and at the same time rotate relative to the first side plate 21 with the cooperation of the fixed rack 37, and drive the sliding rack 38 to reciprocate relative to the first side plate 21, so that the crushing member 39 installed on the sliding rack 38 reciprocates relative to the first side plate 21, thereby preliminarily crushing the construction waste from the feed hopper 1, and the preliminarily crushed construction waste enters between the first crushing assembly 6 and the second crushing assembly 7 through the first guide plate 41 and the second guide plate 42 arranged on the inner side of the shell 2 for crushing.

[0034] Also refer to Figure 5 The first crushing assembly 6 includes a first rotating shaft 61, a driven wheel 62, a first gear 63 and a first crushing roller 64. The first rotating shaft 61 is rotatably supported on the first side plate 21 and the second side plate 22. The first crushing roller 64 is mounted on the first rotating shaft 61. The driven wheel 62 is mounted on one end of the first rotating shaft 61 protruding from the first side plate 21. Preferably, the driven wheel 62 is a sprocket or a pulley. The driving wheel 32 of the crushing assembly 3 drives the driven wheel 62 to rotate through the transmission member 5. The first gear 63 is mounted on the side of the driven wheel 62 away from the first rotating shaft 61. The first crushing assembly 6 drives the second crushing assembly 7 to rotate through the first gear 63.

[0035] The second pulverizing assembly 7 includes a second rotating shaft 71, a second gear 72, a second pulverizing roller 76 and a rotating disk 73. The second rotating shaft 71 is arranged parallel to the first rotating shaft 61 and is rotatably supported on the first side plate 21 and the second side plate 22. The second pulverizing roller 76 is mounted on the second rotating shaft 71. A second gear 72 is mounted on one end of the second rotating shaft 71 protruding from the first side plate 21, and the second gear 72 is engaged with the first gear 63. A rotating disk 73 is mounted on one end of the second rotating shaft 71 protruding from the second side plate 22. The rotating disk 73 is roughly disc-shaped. Also refer to Figure 6 A third connecting column 74 is provided on one side of the rotating disk 73 away from the second rotating shaft 71 , and the third connecting column 74 is arranged away from the center of the rotating disk 73 . A second connecting rod 75 is hinged between the rotating disk 73 and the screening assembly 8 .

[0036] The screening assembly 8 comprises a moving block 81 movably mounted on the second side plate 22, a screening plate 83 driven by the moving block 81, and a first elastic member 85 and a second elastic member 86 respectively mounted between the screening plate 83 and the housing 2. The moving block 81 is slidably mounted on the lower end of the second side plate 22. A recessed groove 222 is provided on the outer side of the second side plate 22, and the recess 222 is arranged adjacent to the lower end of the second side plate 22, and the moving block 81 is partially engaged in the recess 222. A first protrusion 223 and a second protrusion 224 are provided at the lower end of the second side plate 22, wherein the first protrusion 223 and the second protrusion 224 are spaced a certain distance apart, and a support column 84 is installed between the first protrusion 223 and the second protrusion 224. Preferably, the support column 84 is roughly cylindrical. The moving block 81 is roughly U-shaped. The two legs of the U-shaped moving block 81 are respectively arranged as a connecting portion 811 and a coupling portion 812. The connecting portion 811 is provided with a through hole 813, and the support 84 passes through the through hole 813. The engaging portion 812 is partially engaged in the groove 222. A fourth connecting column 82 is provided on the side of the moving block 81 away from the second side plate 22. The two ends of the second connecting rod 75 are rotatably connected to the third connecting column 74 on the rotating disk 73 and the fourth connecting column 82 of the moving block 81. When the rotating disk 73 rotates, the second connecting rod 75, the third connecting column 74 and the fourth connecting column 82 cooperate to drive the moving block 81 to reciprocate relative to the second side plate 22, thereby driving the screening plate 83 to reciprocate relative to the second side plate 22 to screen the construction waste falling on the screening plate 83.

[0037] The first connection part 831 and the second connection part 832 are provided on one side of the screening plate 83 adjacent to the second side plate 22, wherein the moving block 81 is between the first connection part 831 and the second connection part 832, and the support 84 passes through the first connection part 831 and the second connection part 832. Preferably, the two sides of the moving block 81 are adjacent to the first connection part 831 and the second connection part 832 respectively. The first baffle plate 833 and the second baffle plate 834 are provided on both sides of the screening plate 83 respectively. The first baffle plate 833 and the second baffle plate 834 are provided with a first mounting column at one end adjacent to the first side plate 21 respectively, and the second mounting column is provided on both sides of the first side plate 21 respectively, and the first elastic member 85 and the second elastic member 86 are respectively installed on the corresponding mounting columns so as to press the screening plate 83 against the lower end of the housing 2. A plurality of through holes are provided on the screening plate 83 so as to allow construction waste of a certain size to pass through, while construction waste of a large size remains on the screening plate 83. The bracket 9 is provided with an export plate 91, which is tilted and located below the screening plate 83. Preferably, one end of the export plate 91 corresponding to the first side plate 21 is higher than one end of the export plate 91 corresponding to the second side plate 22. One end of the screening plate 83 adjacent to the first side plate 21 protrudes from one end of the export plate 91 corresponding to the first side plate 21. When the amount of construction waste remaining on the screening plate 83 reaches a certain amount, under the action of gravity, the first elastic member 85 and the second elastic member 86 are stretched, so that the screening plate 83 rotates relative to the support 84, so that the large-sized construction waste remaining on the screening plate 83 is discharged. Preferably, the first elastic member 85 and the second elastic member 86 are tension springs, respectively.

[0038] When in use, construction waste enters from the feed hopper 1, and the motor 31 drives the driving wheel 32 to rotate. The driving wheel 32 also drives the driving disc 33 to rotate, so that the first connecting rod 34 can drive the connecting frame 35 to reciprocate relative to the first side plate 21 through the first connecting column 331 and the second connecting column 351, and the movement of the connecting frame 35 can make the driving gear 36 reciprocate relative to the first side plate 21, and at the same time, with the cooperation of the fixed rack 37, it rotates relative to the first side plate 21, and drives the sliding rack 38 to reciprocate relative to the first side plate 21, so that the crushing member 39 installed on the sliding rack 38 reciprocates relative to the first side plate 21, thereby preliminarily crushing the construction waste from the feed hopper 1. The preliminarily crushed construction waste enters between the first crushing assembly 6 and the second crushing assembly 7 through the first guide plate 41 and the second guide plate 42 arranged on the inner side of the shell 2 for crushing. Specifically, the driving wheel 32 drives the first crushing assembly 6 and the second crushing assembly 7 to be crushed through the transmission member 5. The driven wheel 62 of the crushing assembly 6 rotates, thereby causing the first crushing roller 64 to rotate, and at the same time, the first gear 63 drives the second gear 72 of the second crushing assembly 7 to rotate, so that the second crushing roller 76 of the second crushing assembly 7 rotates to further crush the construction waste; at the same time, the rotating disk 73 of the second crushing assembly 7 rotates with the rotation of the second rotating shaft 71, and at the same time, with the cooperation of the second connecting rod 75, the third connecting column 74 and the fourth connecting column 82, drives the moving block 81 to reciprocate relative to the second side plate 22, thereby driving the screening plate 83 to reciprocate relative to the second side plate 22 to screen the construction waste falling on the screening plate 83; when the construction waste remaining on the screening plate 83 reaches a certain amount, under the action of gravity, the first elastic member 85 and the second elastic member 86 are stretched, so that the screening plate 83 rotates relative to the support 84, so that the large-sized construction waste remaining on the screening plate 83 is discharged, preventing the construction waste crushing and processing device from being blocked.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A construction waste crushing and processing device, characterized in that: The invention comprises a bracket, a shell mounted on the bracket, a feed hopper mounted on the upper end of the shell, a crushing assembly mounted on the shell and arranged adjacent to the feed hopper, a first crushing assembly and a second crushing assembly rotatably supported on the shell, and a screening assembly mounted on the lower end of the shell; the crushing assembly comprises a motor mounted on the shell, a driving wheel mounted on the output shaft of the motor, a driving disc mounted on the driving wheel, a fixed rack fixed on the upper side of the slot of the shell, a sliding rack slidably engaged in the slot, a driving gear engaged between the fixed rack and the sliding rack, a connecting frame mounted on the driving gear, a first connecting rod hinged between the driving disc and the connecting frame, and a crushing member mounted on the sliding rack; The driving wheel drives the first crushing assembly to rotate through a transmission member, the first crushing assembly drives the second crushing assembly to rotate, and the second crushing assembly drives the screening assembly to reciprocate relative to the shell; the second crushing assembly includes a second rotating shaft, a second gear, a second crushing roller and a rotating disk; the second rotating shaft is arranged parallel to the first rotating shaft of the first crushing assembly, and is rotatably supported on the first side plate and the second side plate of the shell; the second crushing roller is mounted on the second rotating shaft; the second gear is mounted on one end of the second rotating shaft protruding from the first side plate, and the second gear is engaged with the first gear of the first crushing assembly; The cam is an angular channel formed between a first end of an axis and a second end of an axis, and the cam is connected to the rotation of the pivot point on the second cam, wherein the first and second cams are connected in a direction opposite to each other to form a rotation the rotation of the pivot point. The movable block is U-shaped, and the two legs of the U-shaped movable block are respectively arranged as a connecting part and a joint part; the connecting part is provided with a through hole, and the pillar passes through the through hole; the joint part is partially engaged in the groove; a fourth connecting column is provided on the side of the movable block away from the second side plate, and the two ends of the second connecting rod are respectively rotatably connected to the third connecting column and the fourth connecting column of the movable block; a first connecting part and a second connecting part are provided on the side of the screening plate adjacent to the second side plate, and the movable block is between the first connecting part and the second connecting part, and the pillar passes through the first connecting part and the second connecting part; when the rotating disk rotates, the second connecting rod, the third connecting column and the fourth connecting column cooperate to drive the movable block to reciprocate relative to the second side plate, thereby driving the screening plate to reciprocate relative to the second side plate to screen the construction waste falling on the screening plate.

2. The construction waste crushing and processing device according to claim 1 is characterized in that: The driving disk is installed on the side of the driving wheel away from the motor and is a circular disk; a first connecting column is provided on the side of the driving disk away from the driving wheel, and the first connecting column is set away from the center of the driving disk; the driving gear is rotatably supported on the connecting frame, and a second connecting column is provided on the side of the connecting frame away from the driving gear; the two ends of the first connecting rod are rotatably connected to the first connecting column and the second connecting column respectively.

3. The construction waste crushing and processing device according to claim 1 is characterized in that: The first crushing assembly includes a first rotating shaft, a driven wheel, a first gear and a first crushing roller; the first rotating shaft is rotatably supported on the first side plate and the second side plate of the shell; the first crushing roller is installed on the first rotating shaft; the driven wheel is installed on the end of the first rotating shaft protruding from the first side plate, and the driving wheel drives the driven wheel to rotate through a transmission member; the first gear is installed on the side of the driven wheel away from the first rotating shaft, and the first crushing assembly drives the second crushing assembly to rotate through the first gear.

4. The construction waste crushing and processing device according to claim 1 is characterized in that: A first baffle plate and a second baffle plate are respectively provided on both sides of the screening plate; a first mounting column is respectively provided on one end of the first baffle plate and the second baffle plate adjacent to the first side plate, a second mounting column is respectively provided on both sides of the first side plate, and the first elastic member and the second elastic member are respectively installed on the corresponding mounting columns.

5. The construction waste crushing and processing device according to claim 1 is characterized in that: A guide plate is installed on the bracket, and the guide plate is arranged obliquely and is located below the screening plate.

Images