Civil construction waste crushing and recycling device

Abstract

The invention discloses a civil construction waste smashing and recycling device, and belongs to the technical field of waste recycling and transportation, the civil construction waste smashing and recycling device comprises a supporting base, two first fixing seats are symmetrically installed at the upper end of the supporting base, and first sliding rails are fixedly connected to the upper ends of the two first fixing seats correspondingly; two continuous feeding assemblies are symmetrically arranged on the first fixing base, a connecting frame is fixedly connected to the upper end of the supporting frame on one side, a safety protection assembly is fixedly connected to the connecting frame, and a driving assembly is fixedly installed on the inner side of the first fixing base on one side. By designing the driving assembly and the continuous feeding assembly which are matched with each other, the recovery treatment efficiency is improved, classification of metal waste and common waste is achieved, and by designing the safety protection assembly, the phenomena that hammer pieces are damaged and the driving shaft is broken due to the fact that torsion borne by the hammer pieces on the driving shaft is too large are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of waste recycling and transportation, and in particular relates to a device for crushing and recycling civil engineering and construction waste. Background Art

[0002] With the acceleration of urbanization, the production of construction waste (concrete blocks, bricks, stone, scrap metal, etc.) has surged. Traditional landfill disposal methods face the dual pressures of land shortages and environmental pollution. Crushing and recycling technology can transform waste into recycled aggregate, achieving resource recycling. Furthermore, through recycling and transportation, it can efficiently collect the crushed materials from construction waste and transport them to designated recycling locations for convenient storage.

[0003] When recycling waste, traditional crushing and recycling equipment usually uses a conveyor belt to continuously transport the crushed waste to a unified collection point. Then, in addition to ordinary concrete blocks, wooden boards and bricks and stones, civil construction waste also contains metal waste. Metal has "infinite recycling" and can be directly returned to the furnace for re-refining after recycling. This recycling method causes metal and non-metallic waste to be mixed, and subsequent secondary sorting through sorting equipment is required, resulting in low recycling efficiency. At the same time, when traditional crushing devices crush waste, when the hammer encounters large concrete blocks or waste that exceeds the load range of the drive shaft, the equipment may suffer from drive shaft breakage and hammer bearing damage, which greatly increases the maintenance cost of the device. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a civil engineering and construction waste crushing and recycling device.

[0005] The yoke is provided with two support rails, and the upper end of the two support rails is fixedly connected to the support rails, and the upper end of the two support rails is fixedly connected to the support rails.

[0006] Through the above technical solution, under the cooperation of the driving assembly and the continuous feeding assembly, the two continuous feeding assemblies can move alternately in both directions, and the two feeding boxes can alternate their positions when moving in both directions, avoiding collisions during the alternating movement. While improving the efficiency of conveying construction waste, it can also classify metal waste and other ordinary waste.

[0007] Furthermore, the upper end of the hammer crusher is fixedly connected to a crushing discharge port, the lower end of the hammer crusher is fixedly connected to a feed port, a discharge valve is installed in the feed port, a drive shaft is rotatably connected in the hammer crusher, and a hammer piece is fixedly connected to the drive shaft.

[0008] Furthermore, the safety protection component includes a protective box rotatably connected to the drive shaft, the protective box is rotatably connected to a protective door, the protective door is provided with a handle slot, the protective box is fixedly connected to a first driving motor, the output end of the first driving motor is fixedly connected to a threaded rod, the upper end of the threaded rod is fixedly installed with a connecting shaft, the upper end of the connecting shaft is fixedly provided with a mounting head, the outer side of the upper end of the mounting head is sleeved with a mounting bearing, the mounting head is rotatably connected to a fixed disk, the fixed disk is fixedly connected to the driving shaft, a plurality of fixed steel balls are evenly provided on the lower end of the fixed disk, the outer side of the mounting head is slidably connected to a positioning seat, a plurality of slide grooves are evenly provided in the positioning seat, a plurality of protrusions are fixedly connected to the circumference of the outer surface of the mounting head, the protrusions are slidably connected to the slide grooves, the upper end of the handle slot is evenly fixedly connected to a plurality of positioning blocks, and the lower end of the positioning seat is fixedly connected to the mounting sleeve.

[0009] Through the above technical solution, the output end of the first drive motor drives the threaded rod to rotate, and the threaded rod drives the connecting shaft and the mounting head at the upper end of the connecting shaft to rotate. When the mounting head rotates, the positioning seat is driven to rotate by the cooperation between the protrusion and the slide groove in the positioning seat. At this time, the positioning seat is pushed against the fixed plate by the reset spring, and the positioning block on the positioning seat and the fixed steel ball on the fixed plate engage with each other, thereby driving the drive shaft on the fixed plate to rotate. The rotation of the drive shaft drives the hammer in the hammer crusher to rotate to crush the construction waste.

[0010] Furthermore, a fixing sleeve is threadedly connected to the outer side of the threaded rod, a reset spring is fixedly connected to the fixing sleeve, an upper end of the reset spring is fixedly connected to the mounting sleeve, and anti-slip grooves are provided on the outer side of the fixing sleeve.

[0011] By the above technical scheme, the fixed sleeve is rotated, the fixed sleeve moves along the direction of the threaded rod, the fixed sleeve is rotated clockwise, the fixed sleeve compresses the return spring, the elastic force of the return spring is increased, the fixed sleeve is rotated counterclockwise, the elastic force of the return spring is reduced, the greater the elastic force of the return spring is, the greater the pressure that the return spring exerts on the positioning seat is, and the greater the torque that the positioning block on the positioning seat needs to break through the fixed steel ball during rotation is, and the greater the load that the hammer piece can bear is, and vice versa.

[0012] Further, the continuous feeding assembly comprises a fixed limiting frame fixedly connected with the middle position of the support base, a V-shaped groove is formed in the fixed limiting frame, a support sliding rod is slidably connected in the V-shaped groove, one end of the support sliding rod away from the fixed limiting frame is fixedly connected with the lower surface of the corresponding side jacking box, a moving seat is fixedly connected on the jacking box, a magnetic suction seat is fixedly connected to the upper surface of the moving seat, a magnet is fixedly installed in the magnetic suction seat, a feeding box is fixedly connected to the upper end of the magnetic suction seat, a discharge door is rotatably connected to one side of the feeding box, a counterweight strip is fixedly installed at the lower end of the discharge door, the upper end of the second connecting sliding block is fixedly connected with the continuous feeding assembly away from the fixed plate, a moving plate is fixedly connected to the second connecting sliding block, a sliding shaft is slidably connected to the moving plate, a limiting strip is fixedly connected to the lower end of the sliding shaft, and a moving seat is fixedly connected to the upper end of the sliding shaft.

[0013] Through the above technical scheme, the metal waste is adsorbed in the feeding box under the action of the magnet and cannot be poured out, thereby realizing the classification of metal waste and ordinary waste, when the second connecting sliding block drives the corresponding side feeding box to move, the support sliding rod drives the feeding box to change the movement track along the shape of the V-shaped groove, so that the two feeding boxes can realize position alternation when moving in two directions, and collision in the alternating movement process is avoided.

[0014] Further, a hydraulic cylinder is rotatably connected in the jacking box, a driving head is fixedly connected to the output end of the hydraulic cylinder, and the driving head is rotatably connected with the lower surface of the magnetic suction seat.

[0015] Through the above technical scheme, when the feeding box moves to the pouring position, the hydraulic cylinder is started, the output end of the hydraulic cylinder drives the driving head to lift the magnetic suction seat, so that the magnetic suction seat is turned up, under the action of the counterweight strip, the discharge door is opened, and the ordinary waste can be poured into the material collecting device on the mounting groove.

[0016] Furthermore, the driving assembly includes a driving wheel rotatably connected to the first fixed seat, a tensioning wheel is arranged between the driving wheels, the tensioning wheel is rotatably connected to the first fixed seat, a conveyor belt is respectively sleeved on the driving wheel and the tensioning wheel, the conveyor belt is fixedly connected to the lower end of the fixed plate, one of the driving wheels is fixedly connected to the output end of the second driving motor, and the second driving motor is fixedly installed on the first fixed seat.

[0017] Through the above technical solution, the second drive motor drives the drive wheel to rotate, and at the same time drives the continuous feeding assemblies on both sides to move in both directions through the conveyor belt, thereby making the two continuous feeding assemblies move alternately in both directions.

[0018] Furthermore, a material receiving seat is fixedly connected to one side of the support base, and a mounting groove is provided on the material receiving seat.

[0019] Through the above technical solution, the staff places a unified material collection device on the installation groove in the material collection seat, and ordinary waste materials that do not contain metal waste can be collected in a centralized manner.

[0020] The beneficial effects of the present invention are as follows: (1) The present invention designs a matching driving component and a continuous feeding component. Under the drive of the second driving motor, the two continuous feeding components can alternately move in two directions. The two feeding boxes can alternate their positions when moving in two directions, avoiding collisions during the alternating movement, improving the efficiency of conveying construction waste, and alternating the waste back and forth can reduce the downtime of the recycling device, thereby improving the recycling efficiency. Moreover, under the action of the magnet on the magnetic seat, the metal waste can be adsorbed in the feeding box and cannot be poured out, thereby realizing the metal waste and general (2) The present invention designs a safety protection component. When the hammer on the drive shaft encounters waste that exceeds its own load, the positioning block on the positioning seat is not enough to drive the fixed disk on the fixed steel ball to rotate. The positioning seat pushes the reset spring to slide downward, so that the positioning block and the fixed steel ball collide to make a clicking sound, which reminds the staff that the hammer on the drive shaft is subjected to excessive load, and then timely adjustments can be made to avoid the hammer on the drive shaft being damaged by excessive torque and the drive shaft being broken, thereby improving the service life of the hammer and reducing the frequency of replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first-view stereoscopic structural diagram of the present invention; Figure 2 This is a second perspective three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the first fixing seat of the present invention; Figure 4 It is a three-dimensional structural diagram of the drive assembly of the present invention; Figure 5It is a three-dimensional structural diagram of the continuous feeding assembly of the present invention; Figure 6 This is a three-dimensional structural diagram of the fixed limiting frame of the present invention; Figure 7 It is a three-dimensional structural diagram of the movable plate of the present invention; Figure 8 It is the internal structure diagram of the jacking box of the present invention; Figure 9 It is a three-dimensional structural diagram of the protection box of the present invention; Figure 10 This is a first-perspective three-dimensional structural diagram of the safety protection component of the present invention; Figure 11 is an exploded view of the safety protection assembly of the present invention; Figure 12 It is a cross-sectional view of the invented safety protection component.

[0022] Figure numerals: 1, support base; 10, first fixed seat; 11, first slide rail; 12, first connecting slide block; 13, fixed plate; 14, second fixed seat; 15, second slide rail; 16, second connecting slide block; 17, receiving seat; 18, mounting groove; 2, support frame; 21, hammer crusher; 22, feed port; 23, crushing discharge port; 24, connecting frame; 25, drive shaft; 3, safety protection component; 30, protection box; 31, protection door; 32, handle slot; 33, first drive motor; 34, fixing sleeve; 35, threaded rod; 36, connecting shaft; 37, mounting head; 38, bump; 39, mounting bearing; 3 10. Return spring; 311. Mounting sleeve; 312. Positioning seat; 313. Positioning block; 314. Slide; 315. Fixed plate; 316. Fixed steel ball; 4. Continuous feeding assembly; 40. Feeding box; 41. Discharge door; 42. Counterweight bar; 43. Magnetic seat; 44. Magnet; 45. Moving seat; 46. Lifting box; 47. Slide shaft; 48. Limiting bar; 49. Moving plate; 410. Support slide bar; 411. Fixed limiting frame; 412. V-groove; 413. Hydraulic cylinder; 414. Driving head; 5. Driving assembly; 50. Second driving motor; 51. Driving wheel; 52. Tensioning wheel; 53. Conveyor belt. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0024] like Figure 1-Figure 5As shown, a civil engineering waste crushing and recycling device of this embodiment includes a support base 1, two first fixed seats 10 are symmetrically installed on the upper end of the support base 1, and the upper ends of the two first fixed seats 10 are respectively fixedly connected to first slide rails 11, and multiple groups of first connecting sliders 12 are slidably connected to the first slide rails 11, and multiple groups of first connecting sliders 12 are fixedly connected to fixed plates 13, two continuous feeding assemblies 4 are symmetrically arranged on the first fixed seat 10, and the continuous feeding assembly 4 on one side is fixedly connected to the fixed plate 13, two second fixed seats 14 are symmetrically fixedly installed between the two first fixed seats 10, and the upper ends of the two second fixed seats 14 are fixedly connected to second slide rails 15, and the second slide rails 15 are fixedly connected to the There are multiple groups of second connecting sliders 16 in sliding connection; one side of the upper end of the support base 1 is symmetrically fixedly connected to the support frame 2, and the support frame 2 is fixedly connected to the hammer crusher 21, the upper end of one side of the support frame 2 is fixedly connected to the connecting frame 24, and the connecting frame 24 is fixedly connected to the safety protection component 3, and the inner side of the first fixed seat 10 on one side is fixedly installed with a driving component 5. Under the cooperation of the driving component 5 and the continuous feeding component 4, the two continuous feeding components 4 can move alternately in both directions, and the two feeding boxes 40 can realize the alternation of positions when moving in both directions, avoiding collision during the alternating movement, improving the efficiency of conveying construction waste, and also can classify metal waste and other ordinary waste.

[0025] like Figure 1-Figure 2 As shown, the upper end of the hammer crusher 21 is fixedly connected to a crushing discharge port 23, the lower end of the hammer crusher 21 is fixedly connected to a feed port 22, a discharge valve is installed in the feed port 22, a drive shaft 25 is rotatably connected to the hammer crusher 21, and a hammer piece is fixedly connected to the drive shaft 25.

[0026] like Figures 1-12As shown, the safety protection component 3 includes a protection box 30 rotatably connected to the drive shaft 25, a protection door 31 is rotatably connected to the protection box 30, a handle slot 32 is provided on the protection door 31, a first drive motor 33 is fixedly connected to the protection box 30, a threaded rod 35 is fixedly connected to the output end of the first drive motor 33, the upper end of the threaded rod 35 is fixedly installed with the connecting shaft 36, a mounting head 37 is fixedly provided on the upper end of the connecting shaft 36, a mounting bearing 39 is sleeved on the outer side of the upper end of the mounting head 37, a fixed disk 315 is rotatably connected to the mounting head 37, the fixed disk 315 is fixedly connected to the drive shaft 25, a plurality of fixed steel balls 316 are evenly provided on the lower end of the fixed disk 315, a positioning seat 312 is slidably connected to the outer side of the mounting head 37, a plurality of slide grooves 314 are evenly provided in the positioning seat 312, and a plurality of convex ... The cam 314 is connected with the block 38, and the cam 314 is connected with the slide groove 314. The upper end of the handle groove 32 is evenly fixed with a plurality of positioning blocks 313. The lower end of the positioning seat 312 is fixedly connected with the mounting sleeve 311. The output end of the first drive motor 33 drives the threaded rod 35 to rotate. The threaded rod 35 drives the connecting shaft 36 and the mounting head 37 at the upper end of the connecting shaft 36 to rotate. When the mounting head 37 rotates, the positioning seat 312 is driven to rotate by the cooperation between the cam 38 and the slide groove 314 in the positioning seat 312. At this time, the positioning seat 312 is pushed by the return spring 310 to press against the fixed plate 315. The positioning block 313 on the positioning seat 312 and the fixed steel ball 316 on the fixed plate 315 engage with each other, thereby driving the drive shaft 25 on the fixed plate 315 to rotate. The rotation of the drive shaft 25 drives the hammer in the hammer crusher 21 to rotate to crush the construction waste.

[0027] like Figures 1-11 As shown, the outer side of the threaded rod 35 is threadedly connected to a fixing sleeve 34, and a return spring 310 is fixedly connected to the fixing sleeve 34. The upper end of the return spring 310 is fixedly connected to the mounting sleeve 311. The outer side of the fixing sleeve 34 is provided with anti-slip grooves. When the fixing sleeve 34 is rotated, the fixing sleeve 34 moves along the direction of the threaded rod 35. When the fixing sleeve 34 is rotated clockwise, the fixing sleeve 34 presses the return spring 310, so that the elastic force of the return spring 310 increases. When the fixing sleeve 34 is rotated counterclockwise, the return spring 310 is relaxed and the elastic force decreases. The greater the elastic force of the return spring 310, the greater the pressure applied by the return spring 310 on the positioning seat 312. The torque required for the positioning block 313 on the positioning seat 312 to break through the fixed steel ball 316 when rotating also needs to become greater, and the load that the hammer can withstand is greater. Conversely, the load that the hammer can withstand is smaller.

[0028] like Figure 1-Figure 7As shown, the continuous feeding assembly 4 includes a fixed limiting frame 411 fixedly connected with the middle position of the support base 1, a V-shaped groove 412 is opened in the fixed limiting frame 411, a support slide rod 410 is slidably connected in the V-shaped groove 412, the end of the support slide rod 410 away from the fixed limiting frame 411 is fixedly connected with the lower surface of the corresponding one side of the jacking box 46, the jacking box 46 is fixedly connected with the moving seat 45, the upper surface of the moving seat 45 is fixedly connected with the magnetic suction seat 43, the magnetic iron 44 is fixedly installed in the magnetic suction seat 43, the upper end of the magnetic suction seat 43 is fixedly connected with the feeding box 40, the feeding box 40 is rotatably connected with the discharge door 41 on one side, the discharge door 41 is fixedly installed with the counterweight strip 42 at the lower end, the upper end of the second connecting slide block 16 is fixedly connected with the continuous feeding assembly 4 away from the fixed plate 13 on one side, the moving plate 49 is fixedly connected with the second connecting slide block 16, the slide shaft 47 is slidably connected with the moving plate 49, the limit strip 48 is fixedly connected with the lower end of the slide shaft 47, the moving seat 45 is fixedly connected with the upper end of the slide shaft 47, the metal waste is adsorbed in the feeding box 40 under the action of the magnetic iron 44 and cannot be poured out, thereby realizing the classification of metal waste and ordinary waste, when the second connecting slide block 16 drives the corresponding one side of the feeding box 40 to move, the support slide rod 410 drives the feeding box 40 to change the movement track along the shape trend of the V-shaped groove 412, so that the two feeding boxes 40 can realize the alternation of positions when moving in two directions, avoiding collision in the alternating movement process.

[0029] As shown in Figures 1-8 The jacking box 46 is rotatably connected with the hydraulic cylinder 413, the output end of the hydraulic cylinder 413 is fixedly connected with the driving head 414, the driving head 414 is rotatably connected with the lower surface of the magnetic suction seat 43, when the feeding box 40 moves to the pouring position, the hydraulic cylinder 413 is started, the output end of the hydraulic cylinder 413 drives the driving head 414 to lift the magnetic suction seat 43, so that the magnetic suction seat 43 is turned up, under the action of the counterweight strip 42, the discharge door 41 is opened, and the ordinary waste can be poured into the material collecting device on the mounting groove 18.

[0030] As shown in Figure 1-Figure 4As shown, the driving assembly 5 includes a driving wheel 51 rotatably connected to the first fixed seat 10, and a tensioning wheel 52 is arranged between the driving wheel 51, and the tensioning wheel 52 is rotatably connected to the first fixed seat 10. A conveyor belt 53 is respectively provided on the driving wheel 51 and the tensioning wheel 52, and the conveyor belt 53 is fixedly connected to the lower end of the fixed plate 13. One driving wheel 51 is fixedly connected to the output end of the second driving motor 50, and the second driving motor 50 is fixedly installed on the first fixed seat 10. The second driving motor 50 drives the driving wheel 51 to rotate, and at the same time drives the continuous feeding assemblies 4 on both sides to move in both directions through the conveyor belt 53, thereby making the two continuous feeding assemblies 4 move alternately in both directions; a material receiving seat 17 is fixedly connected to one side of the support base 1, and an installation groove 18 is provided on the material receiving seat 17. The installation groove 18 in the material receiving seat 17 is used by the staff to place a unified material receiving device, and ordinary waste that does not contain metal waste can be collected in a centralized manner.

[0031] The working principle of this embodiment is as follows: the staff puts the construction waste into the hammer crusher 21 through the crushing discharge port 23 and starts the first drive motor 33. The output end of the first drive motor 33 drives the threaded rod 35 to rotate, and the threaded rod 35 drives the connecting shaft 36 and the mounting head 37 at the upper end of the connecting shaft 36 to rotate. When the mounting head 37 rotates, the positioning seat 312 is driven to rotate by the cooperation between the protrusion 38 and the slide groove 314 in the positioning seat 312. At this time, the positioning seat 312 is pushed by the return spring 310 to press against the fixed plate 315. The positioning block 313 on the positioning seat 312 and the fixed steel ball 316 on the fixed plate 315 engage with each other, thereby driving the drive shaft 25 on the fixed plate 315 to rotate. The rotation of the drive shaft 25 drives the hammers in the hammer crusher 21 to rotate to crush the construction waste. When the hammer on the drive shaft 25 encounters waste that exceeds its own load, the positioning block 313 on the positioning seat 312 is insufficient to drive the fixed plate 315 on the fixed steel ball 316 to rotate. The positioning seat 312 pushes the return spring 310 to slide downward, causing the positioning block 313 to collide with the fixed steel ball 316 and produce a clicking sound, which reminds the staff that the hammer on the drive shaft 25 is subjected to excessive load, so that adjustments can be made in time. When the crushing is completed, the waste is put into the feeding box 40, and the second driving motor 50 is started. The second driving motor 50 drives the driving wheel 51 to rotate, and at the same time drives the continuous feeding components 4 on both sides to move in two directions through the conveyor belt 53, thereby making the two continuous feeding components 4 move alternately in two directions. When the fixed plate 13 drives the feeding box 40 on the corresponding side to move under the action of the conveyor belt 53, the feeding box 40 always slides on the first fixed seat 10 through the first connecting slider 12 to maintain the position on the same horizontal line, realizing the movement of the material receiving and unloading positions. When the second connecting slider 16 drives the feeding box 40 on the corresponding side to move, the supporting slide bar 410 drives the feeding box 40 to change the motion trajectory along the shape of the V-shaped groove 412, so that the two feeding boxes 40 can realize the alternation of positions when moving in two directions, avoiding collision during the alternating motion, which can improve the efficiency of conveying construction waste; When the feeding box 40 moves to the unloading position, the hydraulic cylinder 413 is started, and the output end of the hydraulic cylinder 413 drives the driving head 414 to lift the magnetic seat 43, so that the magnetic seat 43 is rotated. Under the action of the counterweight bar 42, the discharge door 41 is opened, and ordinary waste can be poured into the receiving device on the installation groove 18, while the metal waste is adsorbed in the feeding box 40 under the action of the magnet 44 and cannot be poured out, thereby realizing the classification of metal waste and ordinary waste.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A civil engineering and construction waste crushing and recycling device, comprising a support base (1), characterized in that: Two first fixed seats (10) are symmetrically installed on the upper end of the support base (1), and the upper ends of the two first fixed seats (10) are respectively fixedly connected to a first slide rail (11), and a plurality of first connection sliders (12) are slidably connected to the first slide rail (11), and a fixed plate (13) is fixedly connected to the plurality of first connection sliders (12), and two continuous feeding components (4) are symmetrically arranged on the first fixed seat (10), and the continuous feeding component (4) on one side is fixedly connected to the fixed plate (13), and two second fixed seats (14) are symmetrically fixedly installed between the two first fixed seats (10), and the upper ends of the two second fixed seats (14) are fixedly connected to a second slide rail (15), and a plurality of second connection sliders (16) are slidably connected to the second slide rail (15); A support frame (2) is symmetrically fixedly connected to the upper end of the support base (1) on one side, a hammer crusher (21) is fixedly connected to the support frame (2), a connecting frame (24) is fixedly connected to the upper end of the support frame (2) on one side, a safety protection component (3) is fixedly connected to the connecting frame (24), and a driving component (5) is fixedly installed on the inner side of the first fixing seat (10) on one side.

2. The civil engineering and construction waste crushing and recycling device according to claim 1, characterized in that: The upper end of the hammer crusher (21) is fixedly connected to a crushing discharge port (23), the lower end of the hammer crusher (21) is fixedly connected to a feed port (22), a discharge valve is installed in the feed port (22), a drive shaft (25) is rotatably connected in the hammer crusher (21), and a hammer piece is fixedly connected to the drive shaft (25).

3. The civil engineering and construction waste crushing and recycling device according to claim 2, characterized in that: The safety protection component (3) includes a protection box (30) rotatably connected to the drive shaft (25), a protection door (31) rotatably connected to the protection box (30), a handle groove (32) provided on the protection door (31), a first drive motor (33) fixedly connected to the protection box (30), an output end of the first drive motor (33) fixedly connected to a threaded rod (35), an upper end of the threaded rod (35) fixedly mounted to a connecting shaft (36), an upper end of the connecting shaft (36) fixedly provided with a mounting head (37), an outer side of the upper end of the mounting head (37) is provided with a mounting bearing (39), a fixed rod (35) rotatably connected to the mounting head (37), and a mounting head (37) fixedly mounted to the mounting head (37). A fixed plate (315) is fixedly connected to the drive shaft (25), a plurality of fixed steel balls (316) are evenly arranged on the lower end of the fixed plate (315), a positioning seat (312) is slidably connected to the outer side of the mounting head (37), a plurality of slide grooves (314) are evenly opened in the positioning seat (312), a plurality of protrusions (38) are fixedly connected to the circumference of the outer surface of the mounting head (37), the protrusions (38) are slidably connected to the slide grooves (314), a plurality of positioning blocks (313) are evenly fixedly connected to the circumference of the upper end of the handle groove (32), and a mounting sleeve (311) is fixedly connected to the lower end of the positioning seat (312).

4. The civil engineering and construction waste crushing and recycling device according to claim 3, characterized in that: The outer side of the threaded rod (35) is threadedly connected to a fixing sleeve (34), a return spring (310) is fixedly connected to the fixing sleeve (34), an upper end of the return spring (310) is fixedly connected to the mounting sleeve (311), and an anti-slip groove is provided on the outer side of the fixing sleeve (34).

5. The civil engineering and construction waste crushing and recycling device according to claim 1, characterized in that: The continuous feeding assembly (4) includes a fixed limit frame (411) fixedly connected to the middle position of the support base (1), a V-shaped groove (412) is provided in the fixed limit frame (411), a support slide (410) is slidably connected in the V-shaped groove (412), the support slide (410) is fixedly connected to the lower surface of the corresponding side lifting box (46) at one end away from the fixed limit frame (411), a movable seat (45) is fixedly connected to the lifting box (46), a magnetic seat (43) is fixedly connected to the upper surface of the movable seat (45), and a magnet (44) is fixedly installed in the magnetic seat (43). The upper end of the magnetic seat (43) is fixedly connected to a feeding box (40), one side of the feeding box (40) is rotatably connected to a discharge door (41), and a counterweight bar (42) is fixedly installed at the lower end of the discharge door (41). The upper end of the second connecting slider (16) is fixedly connected to the continuous feeding assembly (4) on the side away from the fixed plate (13), the second connecting slider (16) is fixedly connected to a movable plate (49), the movable plate (49) is slidably connected to a sliding shaft (47), the lower end of the sliding shaft (47) is fixedly connected to a limiting bar (48), and the upper end of the sliding shaft (47) is fixedly connected to the movable seat (45).

6. The civil engineering and construction waste crushing and recycling device according to claim 5, characterized in that: A hydraulic cylinder (413) is rotatably connected inside the lifting box (46), and a driving head (414) is fixedly connected to the output end of the hydraulic cylinder (413), and the driving head (414) is rotatably connected to the lower surface of the magnetic seat (43).

7. The civil engineering and construction waste crushing and recycling device according to claim 1, characterized in that: The driving assembly (5) includes a driving wheel (51) rotatably connected to the first fixed seat (10), a tensioning wheel (52) is provided between the driving wheel (51), the tensioning wheel (52) is rotatably connected to the first fixed seat (10), a conveyor belt (53) is respectively sleeved on the driving wheel (51) and the tensioning wheel (52), the conveyor belt (53) is fixedly connected to the lower end of the fixed plate (13), one of the driving wheels (51) is fixedly connected to the output end of the second driving motor (50), and the second driving motor (50) is fixedly installed on the first fixed seat (10).

8. The civil engineering and construction waste crushing and recycling device according to claim 6, characterized in that: A material receiving seat (17) is fixedly connected to one side of the support base (1), and a mounting groove (18) is provided on the material receiving seat (17).

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