Construction waste crushing device

Abstract

The utility model discloses a construction waste crushing device, and relates to the technical field of construction waste crushing, the construction waste crushing device comprises a crushing box, a feeding pipe and a discharging pipe, the feeding pipe is funnel-shaped, the feeding pipe is fixedly mounted in the center of the top of the crushing box, the bottom of the crushing box is funnel-shaped, and the discharging pipe is fixedly mounted in the middle of the top of the crushing box. The discharging pipe is fixedly installed in the center of the bottom of the crushing box. The crushing device further comprises crushing rollers, a driving assembly, a screening mechanism, a first rotating shaft, an electric telescopic rod, a first connecting rod, a second connecting rod and a sealing mechanism. The number of the crushing rollers is two, the two ends of each crushing roller are rotationally installed on the inner walls of the tops of the two ends of the crushing box correspondingly, and the two crushing rollers are symmetrically arranged on the two sides of the interior of the crushing box. The driving assembly is mounted on the outer wall of the top of the back end of the crushing box; the construction waste sorting and discharging device has the beneficial effects that automatic sorting and discharging of crushed construction waste are achieved, the product quality is improved, and operation is convenient and fast.

Description

Technical Field

[0001] This application relates to the field of construction waste crushing technology, and in particular to a construction waste crushing device. Background Technology

[0002] Construction waste primarily originates from the construction, renovation, and demolition of buildings. Its composition is complex and diverse, including discarded concrete blocks, bricks, stones, metal materials, and various types of waste wood. With increasing environmental awareness and a growing understanding of resource recycling, effective crushing of construction waste for subsequent recycling is of great significance. Through crushing, construction waste can be transformed into valuable materials such as recycled aggregates for use in road base paving, concrete production, and other fields, thereby reducing the extraction of natural aggregates and lowering resource consumption and environmental pressure. However, crushing construction waste is not easy and faces numerous difficulties and challenges.

[0003] Traditional construction waste crushing equipment typically only has a simple crushing function and a relatively simple structure. It generally uses components such as crushing rollers to crush construction waste and then directly discharges the crushed material. However, traditional construction waste crushing equipment struggles to classify the crushed construction waste before discharge, resulting in discharged material with mixed particle sizes and inconsistent quality, making it difficult to use for subsequent recycling. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a construction waste crushing device. Its advantages include: automatic sorting and discharge of crushed construction waste, improved product quality, and convenient operation.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a construction waste crushing device, comprising: a crushing box, a feed pipe, and a discharge pipe. The feed pipe is funnel-shaped and fixedly installed at the top center of the crushing box. The bottom of the crushing box is funnel-shaped, and the discharge pipe is fixedly installed at the bottom center of the crushing box. It also includes: crushing rollers, a drive assembly, a screening mechanism, a first rotating shaft, an electric telescopic rod, a first connecting rod, a second connecting rod, and a sealing mechanism. There are two crushing rollers, each with its two ends rotatably installed on the top inner wall of both ends of the crushing box, and the two crushing rollers are symmetrically arranged on both sides inside the crushing box. The drive assembly is installed on the top outer wall of the back end of the crushing box. The screening mechanism is located between the bottom inner walls of both ends of the crushing box. There are two first rotating shafts, each with its two ends rotatably installed on the middle inner wall of both ends of the crushing box, and the two first rotating shafts are symmetrically arranged inside the crushing box. Inside, on both sides, baffles are fixedly installed at the bottom of the two rotating shafts, and the two baffles are symmetrically arranged. There are two electric telescopic rods, one end of which is hinged to the inner wall at the middle position on both sides of the crushing box, and the other end of which is hinged to the side of the corresponding baffle that is away from each other. There are two connecting rods, the top end of which is hinged to one end of one of the baffles. There are two connecting rods, one end of which is hinged to one end of the top of the screening mechanism, and sliding components are installed between the other end of the two connecting rods and the other end of the corresponding connecting rod. The two sets of sliding components are installed on the inner wall of one end of the crushing box. A discharge port is opened at the bottom of the other side of the crushing box, the other side of the screening mechanism is located in the discharge port, and the sealing mechanism is installed on the outer wall of the other side of the crushing box.

[0006] Preferably, the screening mechanism includes: a support plate, a screen, several buffer springs, and a vibration motor. The other side of each end of the support plate is rotatably installed on the inner wall of each end of the discharge port. An installation port is opened on the other side of the top of the support plate. The screen is connected to the inner wall of the installation port through the buffer springs. The vibration motor is fixedly installed on one side of the bottom of the screen. One end of each of the two connecting rods is hinged to one end of the top side of the support plate.

[0007] Preferably, the sealing mechanism includes: a first gear, two support blocks, a second rotating shaft, a second gear, and a sealing plate. An installation groove is provided on the outer wall of the other side of the crushing box, and an installation opening is provided on the other side of the crushing box near the installation groove. The first gear is fixedly installed at one end of the circumference of the first rotating shaft located on the other side of the crushing box. The two support blocks are respectively fixedly installed at the top positions of the inner walls at both ends of the installation groove. The second rotating shaft is rotatably installed between the two support blocks. The second gear is fixedly installed at one end of the circumference of the second rotating shaft. The second gear is located inside the second installation opening. The first gear and the second gear are meshed together. The sealing plate is fixedly installed on the circumference of the second rotating shaft.

[0008] Preferably, a protective housing is fixedly installed on the top outer wall of the back end of the crushing box, and a protective housing is installed on both gear one and gear two.

[0009] Preferably, the drive assembly includes: a rotary motor and two gears. The rotary motor is fixedly installed on the outer wall of the protective housing at the end away from the crushing box. The two gears are respectively fixedly installed on one end of the two crushing rollers through connecting shafts. The two gears are meshed. The end of one gear away from the crushing box is fixedly connected to the output shaft of the rotary motor.

[0010] Preferably, the sliding assembly includes a slide rail and a sliding block. The slide rail is vertically fixedly installed on the inner wall of one end of the crushing box. The sliding block is slidably installed on the slide rail. The top of one side of the sliding block is hinged to the other end of the connecting rod one, and the bottom of one side of the sliding block is hinged to the other end of the connecting rod two.

[0011] Compared with the prior art, the beneficial effects of this application are as follows:

[0012] (1) This utility model proposes a construction waste crushing device, which is equipped with a crushing box, a feeding pipe, a discharging pipe, a crushing roller, a driving component, a screening mechanism, a rotating shaft one, a baffle plate, an electric telescopic rod, a connecting rod one, a connecting rod two, a sliding component, and a sealing mechanism. Construction waste is first poured into the crushing box through the feeding pipe. The crushing roller is crushed by the driving component. During crushing, the electric telescopic rod is not extended, the sealing mechanism is closed, the screening mechanism is horizontal, and the baffle plate is open. The material falls to the screening mechanism for screening. The material that meets the requirements is discharged through the discharging pipe, and the material that does not meet the requirements remains on the screening mechanism. When discharge is required, the electric telescopic rod is extended to push the baffle plate to rotate, which drives the sealing mechanism to open. The connecting rod one, the sliding component, and the connecting rod two pull the support plate of the screening mechanism to rotate and tilt until the baffle plate is closed to prevent new material from falling. The material on the screening mechanism slides down from the discharge port for classified discharge, realizing automatic classification and discharge of construction waste after crushing, improving product quality, and making operation convenient.

[0013] (2) This utility model proposes a construction waste crushing device, which is equipped with a support plate, a screen, several buffer springs and a vibrating motor. After the crushing roller crushes the construction waste, the material falls to the screening mechanism. The vibrating motor drives the screen to vibrate and screen the material. Small-diameter material is discharged through the discharge pipe, while large-diameter material remains on the screen. This realizes efficient screening of construction waste and facilitates the automatic classification and discharge of the crushed construction waste.

[0014] (3) This utility model proposes a construction waste crushing device. It is equipped with a gear 1, two support blocks, a rotating shaft 2, a gear 2, and a sealing plate. When the crushing roller crushes construction waste, the sealing plate seals the discharge port to prevent material from splashing out during screening. When it is necessary to discharge the material on the screen, the electric telescopic rod drives the baffle plate and the rotating shaft 1 to rotate. Through the gear 1 and the gear 2, the rotating shaft 2 drives the sealing plate to rotate and open the discharge port. The material slides down and is discharged. After the material is discharged, the electric telescopic rod retracts and the rotating shaft 1 rotates in the opposite direction, and the sealing plate resets. This realizes that the discharge port can be sealed to prevent material from splashing out when crushing construction waste, and the material is automatically opened during discharge and automatically reset after discharge, effectively controlling the material discharge situation. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is a perspective view of the side of this utility model.

[0017] Figure 3 This is a three-dimensional view of the interior of the crushing box in this utility model.

[0018] Figure 4 This is a perspective view highlighting gear one and gear two in this utility model.

[0019] Figure 5 This is a perspective view highlighting the sealing mechanism in this utility model.

[0020] Figure 6 This is a perspective view highlighting the mounting groove and mounting opening 2 in this utility model.

[0021] Figure 7 This is a perspective view of the screening mechanism in this utility model.

[0022] In the diagram: 1. Crushing box; 201. Support plate; 202. Screen; 203. Buffer spring one; 204. Vibrating motor; 301. Gear one; 302. Support block; 303. Rotating shaft two; 304. Gear two; 305. Sealing plate; 306. Mounting groove; 307. Mounting port two; 401. Rotating motor; 402. Gear three; 501. Slide rail; 502. Sliding block; 601. Connecting rod one; 602. Connecting rod two; 7. Feed pipe; 8. Crushing roller; 9. Discharge pipe; 10. Rotating shaft one; 11. Baffle plate; 12. Electric telescopic rod; 13. Protective shell one; 14. Protective shell two. Detailed Implementation

[0023] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0025] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0026] One preferred embodiment of this application, such as Figures 1 to 7As shown, a construction waste crushing device includes: a crushing box 1, a feed pipe 7, and a discharge pipe 9. The feed pipe 7 is funnel-shaped and is fixedly installed at the top center of the crushing box 1. The bottom of the crushing box 1 is funnel-shaped, and the discharge pipe 9 is fixedly installed at the bottom center of the crushing box 1. It also includes: crushing rollers 8, a drive assembly, a screening mechanism, a rotating shaft 10, an electric telescopic rod 12, a connecting rod 601, a connecting rod 602, and a sealing mechanism. There are two crushing rollers 8, with both ends rotatably installed on the top inner walls of both ends of the crushing box 1. The two crushing rollers 8 are symmetrically arranged on both sides inside the crushing box 1. The drive assembly is installed on the top outer wall of the back end of the crushing box 1. The screening mechanism is located between the bottom inner walls of both ends of the crushing box 1. There are two rotating shafts 10, with both ends rotatably installed on the middle inner walls of both ends of the crushing box 1. The two rotating shafts 10 are symmetrically arranged on both sides inside the crushing box 1. A baffle plate 11 is fixedly installed on the bottom of the circumference of the rotating shaft 10, and the two baffle plates 11 are symmetrically arranged; there are two electric telescopic rods 12, one end of which is hinged to the inner wall of the middle position on both sides of the crushing box 1, and the other end of which is hinged to the side of the corresponding baffle plate 11 that is away from each other; there are two connecting rods 601, the top end of which is hinged to one end of one side of one baffle plate 11; there are two connecting rods 602, one end of which is hinged to one end of the top side of the screening mechanism, and sliding components are installed between the other end of the two connecting rods 601 and the other end of the corresponding connecting rod 602. The two sets of sliding components are installed on the inner wall of one end of one side of the crushing box 1; a discharge port is opened at the bottom of the other side of the crushing box 1, the other side of the screening mechanism is located in the discharge port, and the sealing mechanism is installed on the outer wall of the other side of the crushing box 1.

[0027] First, construction waste is poured into the crushing box 1 through the feed pipe 7. Then, the drive assembly is started, driving the two crushing rollers 8 to rotate. The crushing rollers 8 crush the incoming construction waste. During the crushing process, the electric telescopic rod 12 is in the non-extended state, the sealing mechanism is in the closed state, and the screening mechanism is in the horizontal state. At this time, the baffle plate 11 is in the open state, which does not affect the falling of the crushed material. After the crushed material falls onto the screening mechanism, the screening mechanism screens the material. The material that meets the particle size requirements falls through the screening mechanism and is finally discharged through the discharge pipe 9. The material that does not meet the particle size requirements remains on the screening mechanism. When the crushing is completed to a certain extent, it is necessary to discharge the material on the screening mechanism. The two electric telescopic rods 12 are extended. When the electric telescopic rods 12 are extended, they push the baffle plate 11 around. Rotating shaft 10 drives the sealing mechanism to gradually open. Simultaneously, the rotation of baffle plate 11 causes connecting rod 601 to move accordingly. Through the sliding assembly, the other end of connecting rod 602 moves upward and slides, thereby pulling one side of the screening mechanism and causing the screening mechanism to rotate around that side at a certain angle. As rotating shaft 10 rotates, the tilt angle of the screening mechanism gradually increases until the two baffle plates 11 contact each other, and the baffle plates 11 form a closed state. At this time, the crushing roller 8 is still crushing the construction waste. The closed baffle plate 11 catches the crushed construction waste falling down. At this time, the material on the screening mechanism slides down the tilted screening mechanism and is discharged from the discharge port. The material of different particle sizes is classified, realizing automatic classification and discharge of crushed construction waste, improving product quality and making operation convenient.

[0028] Further reference Figures 3-4 and Figures 6-7 The screening mechanism includes: a support plate 201, a screen 202, several buffer springs 203, and a vibration motor 204. The other side of both ends of the support plate 201 is rotatably installed with the inner walls of both ends of the discharge port. An installation port is opened on the other side of the top of the support plate 201. The screen 202 is connected to the inner wall of the installation port through the buffer springs 203. The vibration motor 204 is fixedly installed on one side of the bottom of the screen 202. One end of the two connecting rods 602 is hinged to the two ends of the top side of the support plate 201.

[0029] After the crushing roller 8 crushes the construction waste, the crushed material falls onto the screening mechanism. At this time, the vibration motor 204 is started, and the vibration force generated by the vibration motor 204 is transmitted to the screen 202. The buffer spring 203 plays a role in buffering and assisting the vibration in this process, causing the screen 202 to vibrate up and down and left and right. The material is screened on the screen 202 with the vibration. The smaller particles that meet the aperture requirements of the screen 202 pass through the screen 202 and are discharged from the discharge pipe 9 at the bottom of the crushing box 1, while the larger particles that do not meet the aperture requirements remain on the screen 202. When it is necessary to discharge the material on the screen 202, the support plate 201 is rotated around one side by the two electric telescopic rods 12, the connecting rod 601, the connecting rod 602, and the sliding assembly, so that the larger materials remaining on the screen 202 are discharged from the discharge port along the inclined support plate 201 for subsequent processing.

[0030] Further reference Figures 1-2 and Figures 4-6 The sealing mechanism includes: a gear 301, two support blocks 302, a rotating shaft 303, a gear 304, and a sealing plate 305. An installation groove 306 is provided on the outer wall of the other side of the crushing box 1, and an installation opening 307 is provided on the other side of the crushing box 1 near the installation groove 306. The gear 301 is fixedly installed at one end of the circumference of the rotating shaft 301 located on the other side of the crushing box 1. The two support blocks 302 are fixedly installed at the top of the inner walls at both ends of the installation groove 306. The rotating shaft 303 is rotatably installed between the two support blocks 302. The gear 304 is fixedly installed at one end of the circumference of the rotating shaft 303. The gear 304 is located in the installation opening 307. The gear 301 and the gear 304 are meshed together. The sealing plate 305 is fixedly installed on the circumference of the rotating shaft 303.

[0031] When the crushing roller 8 crushes the construction waste, the sealing mechanism is in the closed state, and the discharge port is sealed by the sealing plate 305 to prevent the material from splashing out of the discharge port during the screening of the construction waste. When it is necessary to discharge the material on the screen 202, the electric telescopic rod 12 drives the baffle plate 11 to rotate, which in turn drives the rotating shaft 10 to rotate. The gear 301 rotates accordingly, so the rotation of the gear 301 drives the gear 304 to rotate, which in turn drives the rotating shaft 303 to rotate. The sealing plate 305 will rotate with the rotation of the rotating shaft 303 and gradually open, opening the discharge port so that the material slides down from the inclined screen 202 and is discharged through the discharge port. After the discharge is completed, the electric telescopic rod 12 retracts, causing the rotating shaft 10 to rotate in the opposite direction, and the sealing plate 305 gradually returns to its original position.

[0032] Further reference Figures 1-3 and Figures 5-6A protective housing 13 is fixedly installed on the outer wall of the top of the back end of the crushing box 1. A protective housing 14 is installed on the outside of both gear 1 301 and gear 2 304. The drive assembly includes a rotary motor 401 and two gears 3 402. The rotary motor 401 is fixedly installed on the outer wall of the protective housing 13 at the end away from the crushing box 1. The two gears 3 402 are respectively fixedly installed on one end of the two crushing rollers 8 through connecting shafts. The two gears 3 402 are meshed. The end of one of the gears 3 402 away from the crushing box 1 is fixedly connected to the output shaft of the rotary motor 401.

[0033] When the rotating motor 401 is started, its output shaft begins to rotate, and the connected gear 3 402 rotates accordingly. This causes the other gear 3 402 to rotate in the opposite direction, resulting in the two crushing rollers 8 rotating synchronously in opposite directions to crush the construction waste. After the crushing operation is completed, the rotating motor 401 is turned off, stopping the rotation of the crushing rollers 8. During operation, the protective housing 13 provides protection for the drive assembly, preventing dust, debris, and other foreign objects from entering the drive assembly and interfering with or damaging its operation. This ensures the stable operation of the drive assembly and guarantees that the crushing rollers 8 can perform crushing operations normally. The protective housing 2 14 protects gears 1 301 and 2 304, preventing construction waste from getting stuck on gears 1 301 and 2 304 during the crushing operation of the crushing rollers 8, which could lead to malfunctions.

[0034] Further reference Figures 3-4 The sliding assembly includes a slide rail 501 and a sliding block 502. The slide rail 501 is vertically fixed to the inner wall of one end of the crushing box 1. The sliding block 502 is slidably installed on the slide rail 501. The top of one side of the sliding block 502 is hinged to the other end of the connecting rod 1 601, and the bottom of one side of the sliding block 502 is hinged to the other end of the connecting rod 2 602.

[0035] When the electric telescopic rod 12 begins to extend and retract, causing the baffle plate 11 to rotate, the connecting rod 601 will move accordingly, thus pulling the sliding block 502 to slide up and down on the slide rail 501. The slide rail 501 provides a stable track for the movement of the sliding block 502. At the same time, it causes the other end of the connecting rod 602 to slide up and down together with the sliding block 502, thereby causing the support plate 201 to rotate around one side at a certain angle. When it is necessary to discharge the material on the screen 202, the crushed construction waste can be smoothly discharged from the inclined support plate 201 through the discharge port.

[0036] Working principle: First, construction waste is poured into the crushing box 1 through the feed pipe 7. Then, the rotating motor 401 is started, and the output shaft of the rotating motor 401 begins to rotate. The gear 3 402 connected to it rotates accordingly, which drives another gear 3 402 to rotate in the opposite direction. This causes the two crushing rollers 8 to rotate synchronously in opposite directions to crush the construction waste. During the crushing process, the electric telescopic rod 12 is in the non-extended state, the sealing plate 305 seals the discharge port, and the screening mechanism is in a horizontal state. At this time, the baffle plate 11 is in the open state, which does not affect the falling of the crushed material. After the crushed material falls onto the screening mechanism, at this time... The vibration motor 204 is started, and the vibration force generated by the vibration motor 204 is transmitted to the screen 202. The buffer spring 203 plays a role in buffering and assisting the vibration during this process, causing the screen 202 to vibrate up and down and left and right. The material is screened on the screen 202 with the vibration. The smaller particles that meet the aperture requirements of the screen 202 pass through the screen 202 and are discharged from the discharge pipe 9 at the bottom of the crushing box 1, while the larger particles that do not meet the aperture requirements remain on the screen 202. When the crushing is completed to a certain extent, it is necessary to discharge the material on the screening mechanism. The two electric telescopic rods 12 are extended. When the electric telescopic rods 12 are extended, they push... The baffle plate 11 rotates around the rotating shaft 10. The rotation of the rotating shaft 10 drives the rotating shaft 10 to rotate, and the gear 301 rotates accordingly. Therefore, the rotation of the gear 301 drives the gear 304 to rotate, which in turn drives the rotating shaft 303 to rotate. The sealing plate 305 rotates with the rotation of the rotating shaft 303, gradually opening and opening the discharge port. At the same time, the rotation of the baffle plate 11 drives the connecting rod 601 to move. Since its other end is hinged to the top of one side of the sliding block 502, it pulls the sliding block 502 to slide up and down on the slide rail 501. At the same time, it drives the other end of the connecting rod 602 to move together with the sliding block 502. The connecting rod 602 slides up and down, thereby pulling one side of the screening mechanism and causing the support plate 201 to rotate around one side at a certain angle. As the rotating shaft 10 rotates, the tilt angle of the screening mechanism gradually increases until the two baffle plates 11 contact each other and the baffle plates 11 are in a closed state. At this time, the crushing roller 8 is still crushing the construction waste. The baffle plate 11 in the closed state catches the crushed construction waste falling down. At this time, the material on the screening mechanism slides down along the tilted screening mechanism and is discharged through the discharge port. The material of different particle sizes is classified, realizing automatic classification and discharge of crushed construction waste, improving product quality and making operation convenient.

[0037] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A construction waste crushing device, comprising: The crushing box (1), the feed pipe (7), and the discharge pipe (9) are characterized by the following: the feed pipe (7) is funnel-shaped and fixedly installed at the top center of the crushing box (1), the bottom of the crushing box (1) is funnel-shaped, and the discharge pipe (9) is fixedly installed at the bottom center of the crushing box (1). The crushing box (1) is further characterized by the following: Crushing roller (8): There are two crushing rollers (8). The two ends of the crushing rollers (8) are respectively rotatably installed on the inner walls of the top of the two ends of the crushing box (1). The two crushing rollers (8) are symmetrically arranged on both sides inside the crushing box (1). Drive assembly: The drive assembly is installed on the top outer wall of the back end of the crushing box (1); Screening mechanism: The screening mechanism is located between the bottom inner walls of both ends of the crushing box (1); Rotating shaft one (10): There are two rotating shafts one (10). The two ends of the rotating shaft one (10) are respectively rotatably installed on the inner wall of the middle part of the two ends of the crushing box (1). The two rotating shafts one (10) are symmetrically arranged on both sides inside the crushing box (1). A baffle plate (11) is fixedly installed on the bottom of the circumference of the two rotating shafts one (10). The two baffle plates (11) are symmetrically arranged. Electric telescopic rod (12): There are two electric telescopic rods (12). One end of each electric telescopic rod (12) is hinged to the inner wall of the middle position on both sides of the crushing box (1). The other end of each electric telescopic rod (12) is hinged to the side of the corresponding baffle (11) that is far away from each other. Connecting rod 1 (601): There are two connecting rods 1 (601), and the top end of each of the two connecting rods 1 (601) is respectively hinged to one end of one of the baffle plates (11); Connecting rod two (602): There are two connecting rods two (602). One end of each connecting rod two (602) is hinged to the top side of the screening mechanism. The other end of each connecting rod one (601) is connected to the other end of the corresponding connecting rod two (602) with a sliding assembly. The two sets of sliding assemblies are respectively installed on the inner wall of one end of the crushing box (1). Sealing mechanism: A discharge port is provided on the bottom of the other side of the crushing box (1), the other side of the screening mechanism is located inside the discharge port, and the sealing mechanism is installed on the outer wall of the other side of the crushing box (1).

2. The construction waste crushing device as described in claim 1, characterized in that, The screening mechanism includes: a support plate (201), a screen (202), several buffer springs (203), and a vibration motor (204). The other side of both ends of the support plate (201) is rotatably installed with the inner walls of both ends of the discharge port. An installation port is opened on the other side of the top of the support plate (201). The screen (202) is connected to the inner wall of the installation port through the buffer springs (203). The vibration motor (204) is fixedly installed on one side of the bottom of the screen (202). One end of each of the two connecting rods (602) is hinged to the two ends of the top side of the support plate (201).

3. The construction waste crushing device as described in claim 1, characterized in that, The sealing mechanism includes: a gear one (301), two support blocks (302), a rotating shaft two (303), a gear two (304), and a sealing plate (305). An installation groove (306) is provided on the outer wall of the other side of the crushing box (1). An installation opening two (307) is provided on the other side of the crushing box (1) near the installation groove (306). The gear one (301) is fixedly installed at one end of the circumference of the rotating shaft one (10) located on the other side of the crushing box (1). The two support blocks... (302) are respectively fixedly installed at the top of the inner wall of the two ends of the mounting groove (306). The second rotating shaft (303) is rotatably installed between the two support blocks (302). The second gear (304) is fixedly installed at one end of the circumference of the second rotating shaft (303). The second gear (304) is located in the second mounting port (307). The first gear (301) is meshed with the second gear (304). The sealing plate (305) is fixedly installed on the circumference of the second rotating shaft (303).

4. The construction waste crushing device as described in claim 3, characterized in that, The outer wall of the top of the back end of the crushing box (1) is fixedly installed with a protective shell one (13), and the gear one (301) and the gear two (304) are both installed with a protective shell two (14).

5. A construction waste crushing device as described in claim 4, characterized in that, The drive assembly includes a rotary motor (401) and two gears (402). The rotary motor (401) is fixedly installed on the outer wall of the protective housing (13) away from the crushing box (1). The two gears (402) are respectively fixedly installed on one end of the two crushing rollers (8) through connecting shafts. The two gears (402) are meshed. One end of the gear (402) away from the crushing box (1) is fixedly connected to the output shaft of the rotary motor (401).

6. A construction waste crushing device as described in claim 2, characterized in that, The sliding assembly includes a slide rail (501) and a sliding block (502). The slide rail (501) is vertically fixed to the inner wall of one side of the crushing box (1). The sliding block (502) is slidably installed on the slide rail (501). The top of one side of the sliding block (502) is hinged to the other end of the first connecting rod (601), and the bottom of one side of the sliding block (502) is hinged to the other end of the second connecting rod (602).

Images