Multi-stage crushing device for building waste treatment

Abstract

The invention relates to the technical field of crushing equipment, and discloses a multi-stage crushing device for building waste treatment, the multi-stage crushing device comprises an outer box body and a bottom frame fixedly mounted at the bottom of the outer box body, a feeding bin is fixedly mounted at the top of the outer box body, the feeding bin communicates with the outer box body, and partition plates are symmetrically and rotatably mounted in the feeding bin; a crushing mechanism is arranged on the upper portion of the interior of the outer box body, and an auxiliary mechanism is arranged on the lower portion of the interior of the outer box body. And the crushing mechanism comprises a driving motor fixedly installed outside the outer box body, the output end of the driving motor is fixedly connected with a main shaft, and the main shaft penetrates through the outer box body and an upper crushing box and is fixedly provided with a first upper crushing roller. The problems that part of building waste falls into a screening frame before being crushed completely, large fragments can block the normal screening process of a filter screen, and the crushing treatment effect and the crushing efficiency of the device are reduced are solved.

Description

Technical Field

[0001] The invention relates to the technical field of crushing equipment, in particular to a multi-stage crushing device for treating construction waste. Background Art

[0002] During the process of demolition or reconstruction, a large amount of solid construction waste materials will be generated. These solid construction waste materials can be recycled after crushing and screening. An existing crushing device adopts multi-stage crushing and screening to improve the crushing effect. However, the contact time between the construction waste and the crushing roller is short during crushing, so that the construction waste is not fully crushed and is transported to the subsequent screening process, which reduces the crushing effect of the device.

[0003] For example, a multi-stage screening device for crushing construction waste with announcement number CN217249203U includes a base plate, and also includes: mounting frames arranged on both sides of the base plate, a crushing box fixedly connected between the mounting frames, and a crushing roller arranged in the crushing box; a screening mechanism arranged below the crushing box, including a screening frame, a filter screen fixedly connected in the screening frame, a telescopic cylinder fixedly connected between the mounting frames on both sides of the screening frame, a fine screening assembly arranged below the screening frame, and the fine screening assembly screens the material again; a driving mechanism arranged on one side of the screening mechanism is used to drive the screening mechanism. However, the construction waste stays in the crushing box for a short time, which is not convenient for full contact with the crushing roller, so that part of the construction waste falls into the screening frame without being completely crushed, and larger fragments will also block the normal screening process of the filter screen, reducing the crushing treatment effect and crushing efficiency of the device, and there are certain defects.

[0004] Therefore, a multi-stage crushing device for construction waste treatment is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-stage crushing device for processing construction waste, so as to solve the problem that the construction waste is not convenient to fully contact the crushing roller, so that part of the construction waste falls into the screening frame without being completely crushed, and the larger fragments will also block the normal screening process of the filter screen, thereby reducing the crushing treatment effect and crushing efficiency of the device.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a multi-stage crushing device for construction waste treatment, comprising an outer box body and a bottom frame fixedly installed at the bottom of the outer box body, a feed bin fixedly installed on the top of the outer box body, the feed bin is connected to the outer box body, and a partition is symmetrically rotated inside the feed bin; Also includes: A crushing mechanism is arranged on the upper part of the outer box, an auxiliary mechanism is arranged on the lower part of the outer box, an upper crushing box, a screening box and a lower crushing box are sequentially installed inside the outer box from top to bottom, a collecting box is slidably connected to the inner bottom surface of the outer box, and a box door is hinged on one side of the front of the outer box; The feed bin is connected with the upper crushing box, and includes a driving motor fixedly mounted on the outside of the outer box body, the output end of the driving motor is fixedly connected with a main shaft, the main shaft passes through the outer box body and the upper crushing box and is fixedly mounted with an upper crushing roller 1, the upper crushing roller 1 is located inside the upper crushing box, a main gear is fixedly connected to one side of the outer side of the main shaft, and a cam is symmetrically fixedly connected to the outer side of the main shaft; The two cams are arranged opposite to each other, the upper part of the outer box body is rotatably connected with a slave shaft, the outer side of the slave shaft is rotatably connected with the second upper crushing roller, the outer side of the slave shaft is fixedly connected with a slave gear, the slave gear is meshed with the main gear, the middle part of the inner side walls of the outer box body is symmetrically fixedly connected with a fixed block, and the interior of the fixed block is slidably connected with a vertical rod; A spring 1 is sleeved on the outer side of the lower part of the vertical rod, an inclined block is fixedly connected to the upper part of the vertical rod close to the upper crushing box, blocking plates are symmetrically slidably connected to the lower parts of both sides of the upper crushing box, a connecting strip is fixedly connected to one side of the bottom of the blocking plate, a spring 2 is installed between the connecting strip and the upper crushing box, and a filter screen is installed in the middle of the bottom of the screening box; The bottom of the connecting strip is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with the top of the screening box, a transverse plate is symmetrically fixedly installed inside the outer box, the screening box is slidably connected with the transverse plate, and a slider is symmetrically fixedly connected with the bottom of the screening box; The auxiliary mechanism comprises a lower shaft 1 and a lower shaft 2, both of which are rotatably connected to the outer box body, a lower crushing roller 1 is installed on the outer side of the lower shaft 1, and a lower crushing roller 2 is installed on the outer side of the lower shaft 2.

[0007] Preferably, the upper crushing box is fixedly connected to the inner top surface of the outer box body, the main shaft is rotatably connected to the outer box body, the main shaft is rotatably connected to the upper crushing box, the main gear is located outside the upper crushing box, and the upper crushing roller 2 is located inside the upper crushing box.

[0008] By adopting the above technical scheme, a crushing mechanism is provided to realize the linear reciprocating movement of the blocking plate and the screening box. The reciprocating movement of the blocking plate blocks the construction waste that is initially crushed inside the upper crushing box, thereby extending the crushing time of the construction waste. The filter at the bottom of the screening box reciprocates with the screening box, thereby improving the filtering and screening effect, thereby improving the crushing and screening efficiency of the construction waste.

[0009] Preferably, the cam is located outside the upper crushing box, the main gear is located between the cam and the upper crushing box on one side, and the main gear and the slave gear are located on the same side of the outside of the upper crushing box.

[0010] By adopting the above technical solution, the driving motor drives the main shaft and the upper crushing roller 1 to rotate, the main shaft drives the slave gear to rotate through the main gear, the slave gear drives the slave shaft and the upper crushing roller 2 to rotate, and the upper crushing roller 1 and the upper crushing roller 2 squeeze and crush the construction waste.

[0011] Preferably, a stopper is fixedly connected to the bottom end of the vertical rod, the spring 1 is slidably connected to the vertical rod, the top end of the spring 1 is fixedly connected to the bottom of the fixed block, and the bottom end of the spring 1 is fixedly connected to the stopper.

[0012] By adopting the above technical solution, the tip of the cam squeezes the vertical rod, the vertical rod drives the inclined block to descend, the vertical rod stretches the spring one, and the spring one assists the vertical rod to slide.

[0013] Preferably, one side of the blocking plate abuts against the inclined surface of the inclined block, a mounting block is symmetrically fixedly connected to the outer side of the upper crushing box, and one end of the spring 2 away from the connecting strip is fixedly connected to the mounting block.

[0014] By adopting the above technical solution, the blocking plate on one side is squeezed by the inclined block to slide into the inner part of the crushing box, the blocking plate drives the connecting bar to compress the second spring, and the connecting bar drives the screening box to move through the connecting plate, so as to realize the reciprocating movement of the screening box.

[0015] Preferably, a slide groove is provided on the top of the transverse plate, the sliding block is located inside the slide groove, and the sliding block is slidably connected to the slide groove.

[0016] By adopting the above technical solution, the slider slides in the slide groove to assist the smooth movement of the screening box.

[0017] Preferably, a belt assembly 1 is installed on the outer side of the main shaft, and the belt assembly 1 is adaptably connected to the lower shaft 1. A belt assembly 2 is installed on the outer side of the slave shaft, and the belt assembly 2 is adaptably connected to the lower shaft 2.

[0018] By adopting the above technical solution, the main shaft drives the lower shaft one to rotate through the belt component one, and the rotation of the slave shaft drives the lower shaft two to rotate through the belt component two.

[0019] Preferably, the main shaft can drive the lower shaft 1 to rotate through the belt assembly 1, and the slave shaft can drive the lower shaft 2 to rotate through the belt assembly 2, and the belt assembly 1 and the belt assembly 2 are both located outside the outer box.

[0020] By adopting the above technical solution, the lower shaft one drives the lower crushing roller one to rotate, and the rotation of the lower shaft two drives the lower crushing roller two to rotate, so as to further crush the filtered construction waste again.

[0021] Preferably, the lower crushing box is located below the transverse plate, the top of the lower crushing box is in contact with the bottom of the screening box, the lower crushing roller one and the lower crushing roller two are both located inside the lower crushing box, and a filter is installed in the middle of the bottom of the lower crushing box.

[0022] By adopting the above technical solution, the construction waste crushed by the lower crushing roller one and the lower crushing roller two will be further filtered and processed by the filter screen at the bottom of the lower crushing box, so that qualified waste falls into the collection box for collection.

[0023] Compared with the prior art, the invention has the following beneficial effects: a crushing mechanism is provided to realize the linear reciprocating movement of the blocking plate and the screening box, the reciprocating movement of the blocking plate blocks the construction waste that is initially crushed inside the upper crushing box, thereby prolonging the crushing time of the construction waste, and the filter screen at the bottom of the screening box reciprocates with the screening box, thereby improving the filtering and screening effect, thereby improving the crushing and screening efficiency of the construction waste; 1. A crushing mechanism is provided. By inputting the crushed construction waste from the feed bin, the construction waste squeezes the partition, and the partition flips open to facilitate the entry of the waste. After the input is completed, the torsion spring at the partition shaft drives the partition to reset to reduce dust escape, and at the same time starts the drive motor to work, the drive motor drives the main shaft and the upper crushing roller 1 to rotate, the main shaft drives the slave gear to rotate through the main gear, the slave gear drives the slave shaft and the upper crushing roller 2 to rotate, so that the upper crushing roller 1 and the upper crushing roller 2 squeeze and crush the construction waste, and the main shaft also drives the two cams to rotate, the tip of the cam squeezes the vertical rod, the vertical rod drives the inclined block to descend, and the vertical rod stretches the spring 1. Since the two cams are relatively arranged, when the tip of the cam on one side squeezes the vertical rod on one side, the round part of the cam on the other side squeezes the vertical rod on the other side, so that the blocking plate on one side is squeezed upward by the inclined block. Crushing. The box slides in, the blocking plate drives the connecting strip to compress the second spring, the connecting strip drives the screening box to move through the connecting plate, and the screening box drives the blocking plate on the other side to slide out of the outer side of the upper crushing box, thereby realizing the linear reciprocating movement of the blocking plate and the screening box, the slider slides in the slide slot, assisting the smooth movement of the screening box, and the reciprocating movement of the blocking plate blocks the construction waste that is initially crushed inside the upper crushing box, thereby extending the crushing time of the construction waste, and the filter at the bottom of the screening box reciprocates with the screening box, thereby improving the filtering and screening effect, thereby improving the crushing and screening efficiency of the construction waste, and solving the problem that it is inconvenient for the construction waste to fully contact the crushing roller, so that some of the construction waste falls into the screening frame without being completely crushed, and the larger fragments will also block the normal screening process of the filter, thereby reducing the crushing effect and efficiency of the device; 2. An auxiliary mechanism is provided. When the main shaft rotates, the main shaft drives the lower shaft 1 to rotate through the belt assembly 1, and the lower shaft 1 drives the lower crushing roller 1 to rotate. The slave shaft rotates through the belt assembly 2 to drive the lower shaft 2 to rotate, and the lower shaft 2 drives the lower crushing roller 2 to rotate, so that the lower crushing roller 1 and the lower crushing roller 2 inside the lower crushing box can further crush the filtered construction waste again, and the distance between the lower crushing roller 1 and the lower crushing roller 2 is small enough, so the crushing degree of the construction waste is improved. The construction waste crushed by the lower crushing roller 1 and the lower crushing roller 2 will be further filtered and processed by the filter at the bottom of the lower crushing box, so that qualified waste falls into the collection box for collection, which is convenient for opening the box door and taking it out later. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the first three-dimensional overall structure of the present invention; Figure 2 It is a schematic diagram of a second three-dimensional overall structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the outer box body of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Figure 6 This is a schematic diagram of the installation structure of the horizontal plate of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at C in the middle; Figure 8 This is a schematic diagram of the installation structure of the lower crushing box of the present invention; Fig. 9 This is a schematic diagram of the installation structure of the second lower crushing roller of the present invention; Fig.10 For the present invention Fig. 9 Enlarged structural diagram at D in the middle.

[0025] In the figure: 1. outer box body; 2. base frame; 3. feed bin; 4. partition; 5. crushing mechanism; 51. driving motor; 52. main shaft; 53. upper crushing roller one; 54. main gear; 55. cam; 56. slave shaft; 57. upper crushing roller two; 58. slave gear; 59. fixed block; 510. vertical rod; 511. spring one; 512. inclined block; 513. blocking plate; 514. connecting strip; 515. mounting block; 516. spring two; 517. connecting plate; 518. horizontal plate; 519. slide; 520. slider; 6. auxiliary mechanism; 61. lower shaft one; 62. lower shaft two; 63. belt assembly one; 64. belt assembly two; 65. lower crushing roller one; 66. lower crushing roller two; 7. upper crushing box; 8. screening box; 9. lower crushing box; 10. collecting box; 11. box door. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-Figure 10 The present invention provides a technical solution: a multi-stage crushing device for processing construction waste, comprising an outer box body 1 and a base frame 2 fixedly installed at the bottom of the outer box body 1, a feed bin 3 is fixedly installed on the top of the outer box body 1, the feed bin 3 is connected to the outer box body 1, and a partition 4 is symmetrically rotated inside the feed bin 3.

[0028] An upper crushing box 7, a screening box 8 and a lower crushing box 9 are installed in sequence from top to bottom inside the outer box body 1. A collecting box 10 is slidably connected to the inner bottom surface of the outer box body 1. A box door 11 is hinged on one side of the front of the outer box body 1.

[0029] The feed bin 3 is connected with the upper crushing box 7, and a crushing mechanism 5 is arranged on the upper part of the inner part of the outer box body 1. The crushing mechanism 5 includes a driving motor 51 fixedly mounted on the outer part of the outer box body 1, and the output end of the driving motor 51 is fixedly connected with a main shaft 52. The main shaft 52 passes through the outer box body 1 and the upper crushing box 7 and is fixedly mounted with an upper crushing roller 53. The upper crushing roller 53 is located inside the upper crushing box 7, and a main gear 54 is fixedly connected to one side of the outer side of the main shaft 52, and a cam 55 is symmetrically fixedly connected to the outer side of the main shaft 52.

[0030] The upper crushing box 7 is fixedly connected to the inner top surface of the outer box body 1, the main shaft 52 is rotatably connected to the outer box body 1, the main shaft 52 is rotatably connected to the upper crushing box 7, the main gear 54 is located outside the upper crushing box 7, and the upper crushing roller 2 57 is located inside the upper crushing box 7.

[0031] The two cams 55 are arranged opposite to each other, and the upper part of the outer box body 1 is laterally rotatably connected to a slave shaft 56, and the outer side of the slave shaft 56 is rotatably connected to the upper crushing roller 2 57, and the outer side of the slave shaft 56 is fixedly connected to a slave gear 58, and the slave gear 58 is meshed with the main gear 54. Fixed blocks 59 are symmetrically fixedly connected to the middle of the two side walls inside the outer box body 1, and the interior of the fixed block 59 is slidably connected to a vertical rod 510.

[0032] The cam 55 is located outside the upper crushing box 7 , the main gear 54 is located between the cam 55 and the upper crushing box 7 on one side, and the main gear 54 and the slave gear 58 are located on the same side of the outside of the upper crushing box 7 .

[0033] A spring 511 is sleeved on the outer side of the lower part of the vertical rod 510, and an inclined block 512 is fixedly connected to the upper part of the side of the vertical rod 510 close to the upper crushing box 7. The lower parts of both sides of the upper crushing box 7 are symmetrically slidably connected with blocking plates 513. A connecting strip 514 is fixedly connected to one side of the bottom of the blocking plate 513. A spring 2 516 is installed between the connecting strip 514 and the upper crushing box 7. A filter is installed in the middle of the bottom of the screening box 8.

[0034] The bottom end of the vertical rod 510 is fixedly connected with a stopper, the spring 1 511 is slidably connected to the vertical rod 510, the top end of the spring 1 511 is fixedly connected to the bottom of the fixed block 59, and the bottom end of the spring 1 511 is fixedly connected to the stopper.

[0035] One side of the blocking plate 513 abuts against the inclined surface of the inclined block 512 , and a mounting block 515 is symmetrically fixedly connected to the outer side of the upper crushing box 7 , and one end of the spring 2 516 away from the connecting strip 514 is fixedly connected to the mounting block 515 .

[0036] The bottom of the connecting strip 514 is fixedly connected to a connecting plate 517, the bottom of the connecting plate 517 is fixedly connected to the top of the screening box 8, a cross plate 518 is symmetrically fixedly installed inside the outer box body 1, the screening box 8 is slidably connected to the cross plate 518, and a slider 520 is symmetrically fixedly connected to the bottom of the screening box 8.

[0037] A slide groove 519 is provided on the top of the transverse plate 518 , and a sliding block 520 is located inside the slide groove 519 , and the sliding block 520 is slidably connected to the slide groove 519 .

[0038] Embodiment 1: Figure 1-Figure 7 As shown, a crushing mechanism 5 is provided. By inputting the crushed construction waste from the feed bin 3, the construction waste squeezes the partition 4, and the partition 4 flips open to facilitate the entry of waste. After the input is completed, the torsion spring at the rotating shaft of the partition 4 drives the partition 4 to return to its original position to reduce dust emission.

[0039] Start the driving motor 51, which drives the main shaft 52 and the upper crushing roller 1 53 to rotate. The main shaft 52 drives the slave gear 58 to rotate through the main gear 54. The slave gear 58 drives the slave shaft 56 and the upper crushing roller 2 57 to rotate, so that the upper crushing roller 1 53 and the upper crushing roller 2 57 squeeze and crush the construction waste. The main shaft 52 also drives the two cams 55 to rotate. The tip of the cam 55 squeezes the vertical rod 510, and the vertical rod 510 drives the inclined block 512 to descend, and the vertical rod 510 stretches the spring 1 511.

[0040] Since the two cams 55 are arranged opposite to each other, when the tip of the cam 55 on one side squeezes the vertical rod 510 on one side, the round part of the cam 55 on the other side squeezes the vertical rod 510 on the other side, so that the blocking plate 513 on one side is squeezed by the inclined block 512 to slide into the upper crushing box 7, and the blocking plate 513 drives the connecting strip 514 to compress the spring 2 516. The connecting strip 514 drives the screening box 8 to move through the connecting plate 517, and the screening box 8 drives the blocking plate 513 on the other side to slide out of the upper crushing box 7, thereby realizing the linear reciprocating movement of the blocking plate 513 and the screening box 8, and the slider 520 slides in the slide groove 519 to assist the smooth movement of the screening box 8.

[0041] The reciprocating movement of the blocking plate 513 blocks the construction waste that is initially crushed inside the upper crushing box 7, thereby extending the crushing time of the construction waste. The filter screen at the bottom of the screening box 8 reciprocates with the screening box 8, thereby improving the filtering and screening effect, thereby improving the crushing and screening efficiency of the construction waste, and solving the problem that the construction waste is not convenient to fully contact the crushing roller, so that part of the construction waste falls into the screening frame without being completely crushed, and larger fragments will also block the normal screening process of the filter screen, thereby reducing the crushing processing effect and crushing efficiency of the device.

[0042] An auxiliary mechanism 6 is arranged at the lower part of the inner part of the outer box body 1, and the auxiliary mechanism 6 includes a lower shaft 1 61 and a lower shaft 2 62. Both the lower shaft 1 61 and the lower shaft 2 62 are rotatably connected to the outer box body 1. A lower crushing roller 1 65 is installed on the outer side of the lower shaft 1, and a lower crushing roller 2 66 is installed on the outer side of the lower shaft 2 62.

[0043] A belt assembly 63 is installed on the outer side of the main shaft 52, and the belt assembly 63 is adapted to be connected with the lower shaft 61. A belt assembly 64 is installed on the outer side of the slave shaft 56, and the belt assembly 64 is adapted to be connected with the lower shaft 62.

[0044] The main shaft 52 can drive the lower shaft 1 61 to rotate through the belt assembly 1 63 , and the slave shaft 56 can drive the lower shaft 2 62 to rotate through the belt assembly 2 64 . Both the belt assembly 1 63 and the belt assembly 2 64 are located outside the outer box body 1 .

[0045] The lower crushing box 9 is located below the horizontal plate 518, the top of the lower crushing box 9 is in contact with the bottom of the screening box 8, the lower crushing roller 1 65 and the lower crushing roller 2 66 are both located inside the lower crushing box 9, and a filter is installed in the middle of the bottom of the lower crushing box 9.

[0046] Embodiment 2: Figure 8-Figure 10 As shown, an auxiliary mechanism 6 is provided. When the main shaft 52 rotates, the main shaft 52 drives the lower shaft 1 61 to rotate through the belt assembly 1 63, and the lower shaft 1 61 drives the lower crushing roller 1 65 to rotate. The slave shaft 56 rotates through the belt assembly 2 64 to drive the lower shaft 2 62 to rotate, and the lower shaft 2 62 drives the lower crushing roller 2 66 to rotate, so that the lower crushing roller 1 65 and the lower crushing roller 2 66 inside the lower crushing box 9 further crush the filtered construction waste again, and the distance between the lower crushing roller 1 65 and the lower crushing roller 2 66 is small enough, so that the crushing degree of the construction waste is improved. The construction waste crushed by the lower crushing roller 1 65 and the lower crushing roller 2 66 will be further filtered and processed by the filter at the bottom of the lower crushing box 9, so that qualified waste falls into the collection box 10 for collection, which is convenient for opening the box door 11 later to take it out.

[0047] Working principle: When using the device, first, Figure 1-Figure 10 As shown, crushed construction waste is input from the feed bin 3, the construction waste squeezes the partition 4, the partition 4 is flipped open to facilitate the entry of waste, the drive motor 51 is started to work, the drive motor 51 drives the main shaft 52 and the upper crushing roller 1 53 to rotate, the main shaft 52 drives the slave gear 58 to rotate through the main gear 54, the slave gear 58 drives the slave shaft 56 and the upper crushing roller 2 57 to rotate, so that the upper crushing roller 1 53 and the upper crushing roller 2 57 squeeze and crush the construction waste, the main shaft 52 also drives the two cams 55 to rotate, the blocking plate 513 on one side is squeezed by the inclined block 512 to slide into the upper crushing box 7, the blocking plate 513 drives the connecting strip 514 to compress the spring 2 516, the mounting block 515 blocks the spring 2 516, and the spring 2 516 is convenient for the rear of the spring 2 516 After the reset is continued, the connecting strip 514 drives the screening box 8 to move through the connecting plate 517, and the screening box 8 drives the blocking plate 513 on the other side to slide out of the upper crushing box 7, thereby realizing the linear reciprocating movement of the blocking plate 513 and the screening box 8. While the main shaft 52 rotates, the main shaft 52 drives the lower shaft 1 61 to rotate through the belt assembly 1 63, and the slave shaft 56 rotates through the belt assembly 2 64 to drive the lower shaft 2 62 to rotate, so that the lower crushing roller 1 65 and the lower crushing roller 2 66 inside the lower crushing box 9 further crush the filtered construction waste again. The crushed construction waste will be further filtered and processed by the filter screen at the bottom of the lower crushing box 9, so that qualified waste falls into the collection box 10 for collection, which is convenient for the subsequent opening of the box door 11 to take out.

[0048] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-stage crushing device for treating construction waste, comprising an outer box (1) and a bottom frame (2) fixedly mounted on the bottom of the outer box (1), a feed bin (3) fixedly mounted on the top of the outer box (1), the feed bin (3) being connected to the outer box (1), and a partition (4) being symmetrically mounted inside the feed bin (3); It is characterized in that Also includes: A crushing mechanism (5) is arranged at the upper part of the interior of the outer box (1), an auxiliary mechanism (6) is arranged at the lower part of the interior of the outer box (1), an upper crushing box (7), a screening box (8) and a lower crushing box (9) are installed in sequence from top to bottom inside the outer box (1), a collecting box (10) is slidably connected to the inner bottom surface of the outer box (1), and a box door (11) is hingedly connected to one side of the front of the outer box (1); The feed bin (3) is connected to the upper crushing box (7), the crushing mechanism (5) comprises a driving motor (51) fixedly mounted on the outside of the outer box (1), the output end of the driving motor (51) is fixedly connected to a main shaft (52), the main shaft (52) passes through the outer box (1) and the upper crushing box (7) and is fixedly mounted with an upper crushing roller (53), the upper crushing roller (53) is located inside the upper crushing box (7), a main gear (54) is fixedly connected to one side of the outer side of the main shaft (52), and a cam (55) is symmetrically fixedly connected to the outer side of the main shaft (52); The two cams (55) are arranged opposite to each other, the upper part of the outer box body (1) is rotatably connected to a slave shaft (56), the outer side of the slave shaft (56) is rotatably connected to the second upper crushing roller (57), the outer side of the slave shaft (56) is fixedly connected to a slave gear (58), the slave gear (58) is meshingly connected to the main gear (54), the middle part of the inner side walls of the outer box body (1) is symmetrically fixedly connected to a fixed block (59), the inner part of the fixed block (59) is slidably connected to a vertical rod (510); A spring 1 (511) is sleeved on the outer side of the lower part of the vertical rod (510); an inclined block (512) is fixedly connected to the upper part of the vertical rod (510) on one side close to the upper crushing box (7); blocking plates (513) are symmetrically slidably connected to the lower parts of both sides of the upper crushing box (7); a connecting strip (514) is fixedly connected to one side of the bottom of the blocking plate (513); a spring 2 (516) is installed between the connecting strip (514) and the upper crushing box (7); and a filter screen is installed in the middle of the bottom of the screening box (8); The bottom of the connecting strip (514) is fixedly connected to a connecting plate (517), the bottom of the connecting plate (517) is fixedly connected to the top of the screening box (8), a transverse plate (518) is symmetrically fixedly installed inside the outer box body (1), the screening box (8) is slidably connected to the transverse plate (518), and a sliding block (520) is symmetrically fixedly connected to the bottom of the screening box (8); The auxiliary mechanism (6) comprises a lower shaft 1 (61) and a lower shaft 2 (62), wherein the lower shaft 1 (61) and the lower shaft 2 (62) are both rotatably connected to the outer box body (1), and a lower crushing roller 1 (65) is mounted on the outer side of the lower shaft 1 (61), and a lower crushing roller 2 (66) is mounted on the outer side of the lower shaft 2 (62).

2. The multi-stage crushing device for construction waste treatment according to claim 1 is characterized in that: The upper crushing box (7) is fixedly connected to the inner top surface of the outer box body (1), the main shaft (52) is rotatably connected to the outer box body (1), the main shaft (52) is rotatably connected to the upper crushing box (7), the main gear (54) is located outside the upper crushing box (7), and the upper crushing roller 2 (57) is located inside the upper crushing box (7).

3. The multi-stage crushing device for construction waste treatment according to claim 1 is characterized in that: The cam (55) is located outside the upper crushing box (7), the main gear (54) is located between the cam (55) and the upper crushing box (7) on one side, and the main gear (54) and the slave gear (58) are located on the same side of the outside of the upper crushing box (7).

4. The multi-stage crushing device for construction waste treatment according to claim 1 is characterized in that: The bottom end of the vertical rod (510) is fixedly connected to a stopper, the spring one (511) is slidably connected to the vertical rod (510), the top end of the spring one (511) is fixedly connected to the bottom of the fixed block (59), and the bottom end of the spring one (511) is fixedly connected to the stopper.

5. The multi-stage crushing device for construction waste treatment according to claim 1 is characterized in that: One side of the blocking plate (513) abuts against the inclined surface of the inclined block (512); a mounting block (515) is symmetrically fixedly connected to the outer side of the upper crushing box (7); and one end of the second spring (516) away from the connecting strip (514) is fixedly connected to the mounting block (515).

6. The multi-stage crushing device for construction waste treatment according to claim 1, characterized in that: A sliding groove (519) is provided on the top of the transverse plate (518), and the sliding block (520) is located inside the sliding groove (519). The sliding block (520) is slidably connected to the sliding groove (519).

7. The multi-stage crushing device for construction waste treatment according to claim 1 is characterized in that: A belt assembly 1 (63) is installed on the outer side of the main shaft (52), and the belt assembly 1 (63) is adaptably connected to the lower shaft 1 (61). A belt assembly 2 (64) is installed on the outer side of the slave shaft (56), and the belt assembly 2 (64) is adaptably connected to the lower shaft 2 (62).

8. The multi-stage crushing device for construction waste treatment according to claim 7, characterized in that: The main shaft (52) can drive the lower shaft (61) to rotate via the belt assembly (63), and the slave shaft (56) can drive the lower shaft (62) to rotate via the belt assembly (64). Both the belt assembly (63) and the belt assembly (64) are located outside the outer box (1).

9. The multi-stage crushing device for construction waste treatment according to claim 8, characterized in that: The lower crushing box (9) is located below the horizontal plate (518), the top of the lower crushing box (9) is in contact with the bottom of the screening box (8), the lower crushing roller 1 (65) and the lower crushing roller 2 (66) are both located inside the lower crushing box (9), and a filter screen is installed in the middle of the bottom of the lower crushing box (9).

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