Environment-friendly concrete feeding mechanism

Abstract

The application relates to an environment-friendly concrete feeding mechanism, and relates to the field of feeding mechanisms, which comprises a feeding rack and a hopper, a supporting frame is arranged below the feeding rack, the feeding rack is connected with a spraying device, the spraying device comprises a spraying water tank, a spraying pipe, a spraying head and a water pressure pump, one end of the spraying pipe extends into the spraying water tank and is communicated with the output end of the water pressure pump, the other end of the spraying pipe is directed towards the feeding rack, and the feeding rack is provided with a driving assembly for driving the spraying pipe to move. When concrete aggregates are fed, spraying is carried out through the spraying device, the phenomenon that dust on the surface of the concrete aggregates collides and pollutes the working environment during feeding can be reduced, and the environmental protection performance of the feeding mechanism is improved.

Description

An environmentally friendly concrete feeding mechanism Technical Field

[0001] This application relates to the field of material feeding equipment, and in particular to an environmentally friendly concrete feeding mechanism. Background Technology

[0002] Concrete is an important cementing material in modern construction and is widely used in civil engineering. Because of its large volume and heavy weight, concrete needs to be transported and loaded using a feeding mechanism.

[0003] Related technologies involve a concrete mixing plant feeding device, including a conveyor belt with sieve holes above it, a hopper above the conveyor belt, and a drive mechanism fixed to a baffle. The drive mechanism moves the baffle along the cross-section of the hopper. The drive mechanism includes a drive cylinder fixed to the hopper, and the actuating end of the drive cylinder is fixedly connected to the baffle. This invention can screen the fed material, reducing the amount of undersized material entering the mixing device and affecting the particle size distribution of the concrete.

[0004] Regarding the aforementioned technologies, the inventors believe that when concrete aggregates are transported and screened, collisions occur during the transport process, causing dust carried on the surface of the aggregates to be impacted and thrown into the air, thereby reducing the quality of the working environment during material feeding and polluting the working environment. Summary of the Invention

[0005] In order to reduce the impact of dust generated during concrete aggregate feeding on the working environment, this application provides an environmentally friendly concrete feeding mechanism.

[0006] The concrete environmental protection feeding mechanism provided in this application adopts the following technical solution:

[0007] An environmentally friendly concrete feeding mechanism includes a feeding frame and a hopper. A support frame is provided below the feeding frame. A spraying device is connected to the feeding frame. The spraying device includes a spraying water tank, a spraying pipe, a spraying head, and a pressure pump. One end of the spraying pipe extends into the spraying water tank and is connected to the output end of the pressure pump. The other end of the spraying pipe faces the feeding frame. The feeding frame is provided with a drive assembly for moving the spraying pipe.

[0008] When the hopper discharges material, small aggregates fall below the feeding mechanism. At the same time, due to the collision between the aggregates, the dust on the surface of the aggregates will be thrown into the working environment after being impacted. By adopting the above technical solution, the water mist sprayed from the spray pipe combines with the flying dust, increasing the weight of the dust, making it difficult for the dust to fly, thereby improving the environmental friendliness of the working environment.

[0009] Preferably, the drive assembly includes a drive motor, a rotating rod, a driving bevel gear, a first meshing bevel gear, a first connecting screw, and a first moving block. Support plates are provided at both ends of the support frame. A first limiting plate is provided on one side of the support frame along its length, and a second limiting plate is provided on the other side. The drive motor is connected to the first limiting plate. One end of the rotating rod is connected to a coupling of the drive motor, and the other end of the rotating rod is rotatably connected to the second limiting plate. The driving bevel gear is sleeved on the rotating rod. The first meshing bevel gear meshes internally with the driving bevel gear. The first connecting screw passes through the first meshing bevel gear. One end of the first connecting screw is rotatably connected to a support plate at one end of the support frame, and the other end of the first connecting screw is rotatably connected to a support plate at the other end of the support frame. The first connecting screw is located on one side of the feeding frame along its length. The first moving block is sleeved on the first connecting screw, and the side wall of the first moving block is in contact with the side wall of the first limiting plate. The first moving block is threadedly connected to the first connecting screw. The spray pipe is connected to the first moving block.

[0010] By adopting the above technical solution, after the drive motor is started, the drive motor drives the rotating rod to rotate, which in turn drives the first meshing bevel gear to rotate, causing the first connecting screw to rotate. The first moving block moves along the length of the first connecting screw, thereby driving the spray pipe to move. This allows the spray range of the spray pipe to be continuously adjusted, thereby increasing the spray range of the spray device and further reducing the phenomenon of dust flying.

[0011] Preferably, the spray pipe includes a main connecting pipe, a first connecting pipe, and a second connecting pipe. One end of the main connecting pipe is connected to a water pump, and the other end of the main connecting pipe is connected to the first connecting pipe and the second connecting pipe respectively. The first connecting pipe is connected to a first movable block. A driven bevel gear is sleeved on the outer wall of the rotating rod, and the driven bevel gear is meshed with a second meshing bevel gear. A second connecting screw is provided at the end of the feeding frame away from the first connecting screw, and the second connecting screw passes through the second meshing bevel gear. One end of the second connecting screw is rotatably connected to one end of the support frame along its length, and the other end of the second connecting screw is rotatably connected to the other end of the support frame along its length. A second movable block is sleeved on the outer wall of the second connecting screw, and the second movable block is connected to the second connecting pipe. The second movable block is in contact with the side wall of the second limiting plate.

[0012] By adopting the above technical solution, when the drive motor rotates, the second connecting screw and the second meshing bevel gear rotate under the action of the driven bevel gear, thereby driving the second moving block to move. The first moving block and the second moving block are arranged opposite to each other, which can further improve the dust spraying effect of the spraying device.

[0013] Preferably, the first connecting screw and the second connecting screw rotate in opposite directions.

[0014] By adopting the above technical solution, the first moving block and the second moving block move in opposite directions, which allows the first connecting pipe and the second connecting pipe to spray dust at different locations, thereby further enhancing the suppression of dust flying.

[0015] Preferably, the first movable block is rotatably provided with a first rotating shaft, the first rotating shaft is rotatably connected to a first rotating gear, the first connecting pipe passes through the first rotating shaft and the first rotating gear, and the side wall of the first limiting plate is provided with a first connecting rack, the first connecting rack meshing with the first rotating gear; the second movable block is provided with a second rotating shaft, the second rotating shaft is rotatably connected to a second rotating gear, the second connecting pipe passes through the second rotating shaft and the second rotating gear, and the side wall of the second limiting plate is provided with a second connecting rack, the second connecting rack meshing with the second rotating gear.

[0016] By adopting the above technical solution, when the first moving block and the second moving block move along the length direction of the rotating screw, the first rotating gear meshes with the first connecting rack to drive the first rotating gear to rotate, and the second rotating gear meshes with the second connecting rack to drive the second rotating rack to rotate. This allows for fine adjustment of the orientation of the first connecting pipe and the second connecting pipe, enabling the spray pipe to spray the feeding mechanism comprehensively, effectively improving the spraying effect of the spraying device.

[0017] Preferably, a first protective plate is provided on the side of the support frame near the first limiting plate, a second protective plate is provided on the side of the support frame near the second limiting plate, and a third protective plate is provided on the end of the support frame away from the hopper.

[0018] By adopting the above technical solution, when smaller aggregates fall, the first protective plate, the second protective plate and the third protective plate close the support frame, thereby reducing the phenomenon of smaller aggregates generating dust and flying from the support frame after collision.

[0019] Preferably, a dust collection device is provided at the feeding frame. The dust collection device includes a dust collection fan, a suction pipe and a collection box. The suction pipe is connected to the first protective plate, the dust collection fan is connected to the suction pipe, and the end of the suction pipe away from the support frame is connected to the collection box.

[0020] By adopting the above technical solution, when the aggregate is being fed, the dust extraction fan is driven to collect the dust generated by the smaller aggregates in a timely manner through the suction pipe, which can reduce the phenomenon of fine aggregate dust flying back into the working environment from the feeding mechanism.

[0021] Preferably, the lower end of the feeding frame is provided with a receiving frame, and the connection between the suction pipe and the first protective plate is located above the receiving frame.

[0022] By adopting the above technical solution, when small aggregates fall, they directly enter the receiving frame, which facilitates the collection of small aggregates and their subsequent reuse.

[0023] Preferably, the lower end of the support frame is provided with a support plate, the receiving frame is located above the support plate, the support plate is provided with a sliding groove, and a roller is rotatably provided on the inner wall of the sliding groove, the roller being in contact with the receiving frame.

[0024] By adopting the above technical solution, the receiving frame can be separated from the feeding frame after being pulled out. When the receiving frame is pulled out, the bottom wall of the receiving frame is in contact with the roller, and the rolling of the roller facilitates the pulling out of the receiving frame, thereby improving the convenience of pulling the receiving frame.

[0025] Preferably, a stabilizing plate is rotatably provided at the opening of the support frame, a magnetic element is provided on the side wall of the stabilizing plate, and an adsorption element that is magnetically attracted to the magnetic element is provided on the side wall of the support frame.

[0026] By adopting the above technical solution, when the stabilizing plate is closed, the phenomenon of the receiving frame accidentally sliding out of the feeding mechanism can be reduced, thereby improving the stability of the receiving frame.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. A spraying device is installed at the feeding frame. The water mist sprayed from the spray pipe of the spraying device collects the dust flying when it collides with the aggregate, which can increase the weight of the dust and make it difficult for the dust to fly in the working environment, thereby maintaining the cleanliness of the working environment and improving the green and environmentally friendly performance of concrete aggregate during feeding.

[0029] 2. The drive component drives the first connecting pipe and the second connecting pipe to move along the length of the feeding frame, thereby increasing the spraying range of the spraying device and further enhancing the suppression effect of the spraying device on dust. Attached Figure Description

[0030] Figure 1 is an overall schematic diagram of a concrete environmental protection feeding mechanism according to an embodiment of this application.

[0031] Figure 2 is a partial cross-sectional schematic diagram of this application used to illustrate the connection relationship between the spraying device and the feeding frame.

[0032] Figure 3 is a schematic diagram of the removal of the conveyor belt and hopper of the feeding mechanism in an embodiment of this application.

[0033] Figure 4 is a partial schematic diagram illustrating the positional relationship between the first moving block and the second moving block.

[0034] Figure 5 is a schematic diagram showing the positional relationship of the receiving frame behind the rotation stabilizer plate.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Feeding frame; 11. Hopper; 2. Spraying device; 21. Spraying water tank; 22. Spraying pipe; 221. Connecting main pipe; 222. First connecting pipe; 223. Second connecting pipe; 23. Spray head; 24. Water pump; 3. Support frame; 30. Support plate; 31. First limiting plate; 311. First connecting rack; 32. Second limiting plate; 322. Second connecting rack; 33. First protective plate; 34. Second protective plate; 35. Third protective plate; 36. Support plate; 361. Sliding groove; 37. Roller; 38. Adsorption component; 4. Drive Components; 41. Drive motor; 42. Rotating rod; 43. Driving bevel gear; 44. First meshing bevel gear; 45. First connecting screw; 46. First moving block; 460. First rotating shaft; 461. First rotating gear; 47. Driven bevel gear; 48. Second meshing bevel gear; 49. Second connecting screw; 410. Second moving block; 4100. Second rotating shaft; 4101. Second rotating gear; 5. Dust collection device; 51. Dust collection fan; 52. Suction duct; 53. Collection box; 6. Receiving frame; 7. Stabilizing plate; 71. Magnetic component. Detailed Implementation

[0037] The present application will be further described in detail below with reference to Figures 1-5.

[0038] This application discloses an environmentally friendly concrete feeding mechanism. Referring to Figures 1 and 2, the environmentally friendly concrete feeding mechanism includes a feeding frame 1, which is connected to a motor via a conveyor belt. The conveyor belt is a frame with screen holes, which can screen out aggregates with excessively small particle sizes during feeding, thereby enabling aggregate selection. A support frame 3 is fixedly connected to the bottom of the feeding frame 1 by screws. The lower end of the support frame 3 abuts against the support surface to support the feeding frame 1. The feeding frame 1 is inclined, and a hopper 11 is installed at the end of the feeding frame 1 closest to the support surface. The hopper 11 is aligned with the feeding frame 1, thereby feeding and screening aggregates. A spraying device 2 is installed at the end of the feeding frame 1 away from the hopper 11. The spraying device 2 can spray the aggregates, which can clean the aggregates and reduce dust generation when the aggregates are dumped at the feeding mechanism, thereby improving the environmental friendliness of the working environment.

[0039] Referring to Figure 2, the spraying device 2 includes a spraying water tank 21, a spraying pipe 22, a spraying head 23, and a pressure pump 24. The spraying water tank 21 is located at the end of the feeding frame 1 away from the hopper 11. The pressure pump 24 is located in the spraying water tank 21. One end of the spraying pipe 22 is connected to the output pipe of the pressure pump 24. The other end of the spraying water tank 21 extends out of the spraying water tank 21 and is connected to the support frame 3. The end of the spraying pipe 22 away from the spraying water tank 21 is threadedly connected to the spraying head 23. The spraying head 23 faces the feeding frame 1. After the water from the spraying water tank 21 comes out through the spraying head 23, it combines with the dust in the air, which can reduce the phenomenon of dust flying, thereby improving the environmental quality of the feeding mechanism during operation.

[0040] Referring to Figures 2 and 3, a drive assembly 4 for moving the spray pipe 22 is also provided at the feeding frame 1. The drive assembly 4 includes a drive motor 41, a rotating rod 42, a driving bevel gear 43, a first meshing bevel gear 44, a first connecting screw 45, and a first moving block 46. Support plates 30 are integrally formed at both ends of the support frame 3 along its length. A first limiting plate 31 is fixedly connected to the connecting plates on one side of the feeding frame 1 along its length by screws. A second limiting plate 32 is fixedly connected to the connecting plates on the other side of the feeding frame 1 along its length by screws. The first limiting plate 31 and the second limiting plate 32 are parallel to each other. The drive motor 41 is fixedly connected to the side wall of the first limiting plate 31 away from the second limiting plate 32 by screws. The drive motor 41 is located at the end of the first limiting plate 31 near the hopper 11. One end of the rotating rod 42 is welded and fixed to the coupling of the drive motor 41. The other end of the rotating rod 42 passes through the first limiting plate 31 and is connected to the side wall bearing of the second limiting plate 32. The driving bevel gear 43 is sleeved on the rotating rod 42. The first connecting screw 45 is set along the length direction of the feeding frame 1. One end of the first connecting screw 45 is located at the support frame 3. On one side of the first limiting plate 31, one end of the first connecting screw 45 is connected to a bearing on the side wall of the support plate 30 away from the hopper 11, and the other end of the first connecting screw 45 is rotatably connected to the support plate 30 near the hopper 11; a first meshing bevel gear 44 is sleeved on the first connecting screw 45, and the first meshing bevel gear 44 meshes with the master and slave bevel gears; a first moving block 46 is sleeved on the first connecting screw 45, and the first moving block 46 is threadedly connected to the first connecting screw 45; the spray pipe 22 includes a first connecting pipe 222, a second connecting pipe 223, and a connecting main pipe 221. One end of the main connecting pipe 221 is connected to the output pipe of the water pump 24. The other end of the main connecting pipe 221 is integrally formed with the first connecting pipe 222 and the second connecting pipe 223. The end of the first connecting pipe 222 away from the main connecting pipe 221 is inserted into the first moving block 46. The end of the first connecting pipe 222 is threadedly connected to the spray head 23. The first connecting pipe 222 faces the feeding frame 1. After starting the drive motor 41, the rotating rod 42 can be rotated, which will drive the first connecting screw 45 to rotate, thereby rotating the first moving block 46, thereby increasing the spraying range of the spraying device 2.

[0041] Referring to Figures 3 and 4, a driven bevel gear 47 is sleeved on the outer wall of the rotating rod 42. A second connecting screw 49 is installed on the side of the feeding frame 1 away from the first limiting plate 31. The second connecting screw 49 is parallel to the first connecting screw 45. A second meshing bevel gear 48 is sleeved on the outer wall of the second connecting screw 49. The second meshing bevel gear 48 meshes with the driven bevel gear 47. The driving bevel gear 43 and the driven bevel gear 47 are in opposite directions. The rotation directions of the first connecting screw 45 and the second connecting screw 49 are opposite. One end of the second connecting screw 49 is connected to the support plate 30 of the feeding frame 1 near the hopper 11 by a bearing. The other end of the second connecting screw 49 is connected to the support plate of the feeding frame 1 away from the hopper 11. The bearing is 30. The second moving block 410 is sleeved on the second connecting screw 49. The second moving block 410 and the second connecting screw 49 are threaded together. The side wall of the second moving block 410 is attached to the side wall of the second limiting plate 32. The second moving block 410 can move along the length direction of the second connecting screw 49. The second connecting pipe 223 passes through the second moving block 410 from the lower end upward. The end of the second connecting pipe 223 is threaded to the spray head 23. The end of the second connecting pipe 223 faces the feeding frame 1. Under the action of the first connecting pipe 222 and the second connecting pipe 223, they can spray the top of the feeding frame 1 together, thereby further increasing the spray range and making the working environment green and environmentally friendly.

[0042] Referring to Figures 3 and 4, the upper end bearing of the first moving block 46 is connected to the first rotating shaft 460, and the end of the first rotating shaft 460 away from the first moving block 46 is connected to the first rotating gear 461. The first connecting pipe 222 passes through the first rotating shaft 460 and the first rotating gear 461. The side wall of the first limiting plate 31 is glued to the first connecting rack 311. The first connecting rack 311 and the first rotating gear 461 mesh with each other. When the first moving block 46 moves along the length direction of the first rotating screw, the first rotating gear 461 drives the first connecting pipe 222 to rotate, thereby making the spraying range of the first connecting pipe 222 wider. The upper end bearing of the second moving block 410 is connected to the second rotating shaft 4100. The end of the second rotating shaft 4100 away from the first moving block 46 is connected to the second rotating gear 4101. The second connecting pipe 223 passes through the second rotating shaft 4100 and the second rotating gear 4101. The side wall of the second limiting plate 32 is glued to the second connecting rack 322. The second connecting rack 322 and the second rotating gear 4101 mesh with each other. When the second moving block 410 moves along the length of the second rotating screw, the second rotating gear 4101 drives the second connecting pipe 223 to rotate, thereby making the spraying range of the second connecting pipe 223 wider.

[0043] Referring to Figures 2 and 3, a first protective plate 33 is connected to one side of the support frame 3 along the length of the feeding frame 1. The first protective plate 33 is located near the first limiting plate 31 and is fixedly connected to the support frame 3 with screws. A second protective plate 34 is connected to the support frame 3 along the other side of the length of the feeding frame 1. The second protective plate 34 is located near the second limiting plate 32 and is fixedly connected to the support frame 3 with screws. A third protective plate 35 is installed at the end of the support frame 3 away from the hopper 11. The third protective plate 35 is fixedly connected to the support frame 3 with screws. The first protective plate 33, the second protective plate 34, and the third protective plate 35 surround the support frame 3 on three sides, thereby further reducing the phenomenon of dust flying out from the gaps in the support frame 3.

[0044] Referring to Figures 2 and 3, a dust collection device 5 is installed on the side of the feeding frame 1 near the first protective plate 33. The dust collection device 5 includes a suction pipe 52, a dust collection fan 51, and a collection box 53. One end of the suction pipe 52 passes through the first protective plate 33 and is connected to the dust collection fan 51. The end of the suction pipe 52 away from the first protective plate 33 is connected to the collection box 53. After the dust collection fan 51 is started, the dust in the support frame 3 is further collected, thereby further improving the suppression of dust and further improving the environmental friendliness of the working environment.

[0045] Referring to Figures 3 and 5, a receiving frame 6 is installed at the lower end of the feeding frame 1. In this embodiment, the receiving frame 6 is a rectangular frame with an open top. The receiving frame 6 can receive small-diameter aggregates falling from the feeding frame 1, which facilitates the subsequent collection and reuse of small-diameter aggregates. The connection between the suction pipe 52 and the first protective plate 33 is located above the receiving frame 6.

[0046] Referring to Figures 3 and 5, a support plate 36 is connected to the end of the support frame 3 away from the feeding frame 1. The bottom wall of the receiving frame 6 abuts against the upper surface of the support plate 36. A sliding groove 361 is provided on the upper surface of the support plate 36 along the length of the receiving frame 6. In this embodiment, two sliding grooves 361 are provided on the support plate 36. The two sliding grooves 361 are parallel to each other. A roller 37 is inserted in the sliding groove 361. The roller 37 is rotatably connected to the inner wall of the sliding groove 361 through a rotating shaft. The receiving frame 6 can slide along the length of the feeding frame 1 away from the third protective plate 35, thereby sliding the receiving frame 6 out to facilitate the collection of filtered aggregate.

[0047] Referring to Figures 3 and 5, the end of the support plate 36 away from the third protective plate 35 is rotatably connected to the stabilizing plate 7 via a rotating shaft. After the stabilizing plate 7 rotates, it can reduce the phenomenon of the receiving frame 6 sliding out from under the support frame 3 during material feeding, thereby improving the collection effect of the receiving frame 6 on the filtered aggregate. A magnetic component 71 is glued to the side wall of the stabilizing plate 7, and an adsorption component 38 that is magnetically attracted to the magnetic component 71 is glued to the side wall of the support frame 3. In this embodiment, the magnetic component 71 is a magnet, and the adsorption component 38 is an iron sheet.

[0048] The implementation principle of a concrete environmental protection feeding mechanism according to an embodiment of this application is as follows:

[0049] After the hopper 11 is started, the hopper 11 feeds materials through the feeding frame 1. At the same time as feeding, small aggregates fall into the receiving frame 6 below the feeding mechanism. At the same time as feeding, the pressure pump 24 in the spray water tank 21 is started. The water in the spray water tank 21 is sprayed out as water mist through the spray nozzles 23 of the first connecting pipe 222 and the second connecting pipe 223 after passing through the main pipe 221. This increases the humidity in the environment. After the flying water mist comes into contact with the dust, it can reduce the phenomenon of dust flying, thereby improving the cleanliness of the working environment.

[0050] Start the drive motor 41, which drives the rotating rod 42 to rotate, thereby causing the first connecting screw 45 and the second connecting screw 49 to rotate simultaneously. This causes the first moving block 46 and the second moving block 410 to slide, thereby driving the first connecting pipe 222 and the second connecting pipe 223 to move, further increasing the spraying range of the spraying device 2.

[0051] This specific embodiment is merely an explanation of this application and is not intended to limit it. Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A concrete environmentally friendly feeding mechanism, comprising a feeding frame (1) and a hopper (11), characterized in that: A support frame (3) is provided below the feeding frame (1). The feeding frame (1) is connected to a spraying device (2). The spraying device (2) includes a spraying water tank (21), a spraying pipe (22), a spraying head (23), and a pressure pump (24). One end of the spraying pipe (22) extends into the spraying water tank (21) and is connected to the output end of the pressure pump (24). The other end of the spraying pipe (22) faces the feeding frame (1). The feeding frame (1) is provided with a drive assembly (4) for driving the spraying pipe (22) to move. The drive assembly (4) includes a drive motor (41), a rotating rod (42), and a main... The support frame (3) includes a moving bevel gear (43), a first meshing bevel gear (44), a first connecting screw (45), and a first moving block (46). Support plates (30) are provided at both ends of the support frame (3). A first limiting plate (31) is provided on one side of the support frame (3) along its length, and a second limiting plate (32) is provided on the other side. The drive motor (41) is connected to the first limiting plate (31). One end of the rotating rod (42) is connected to the coupling of the drive motor (41), and the other end of the rotating rod (42) is rotatably connected to the second limiting plate (32). The moving bevel gear... A wheel (43) is fitted onto a rotating rod (42). The first meshing bevel gear (44) meshes internally with the driving bevel gear (43). The first connecting screw (45) passes through the first meshing bevel gear (44). One end of the first connecting screw (45) is rotatably connected to the support plate (30) at one end of the support frame (3), and the other end of the first connecting screw (45) is rotatably connected to the support plate (30) at the other end of the support frame (3). The first connecting screw (45) is located on one side of the length direction of the feeding frame (1). The first moving block (46) is fitted onto the first connecting screw (45). The sidewall of block (46) is attached to the sidewall of the first limiting plate (31), the first moving block (46) is threadedly connected to the first connecting screw (45), and the spray pipe (22) is connected to the first moving block (46); the spray pipe (22) includes a connecting main pipe (221), a first connecting pipe (222) and a second connecting pipe (223), one end of the connecting main pipe (221) is connected to the water pump (24), and the other end of the connecting main pipe (221) is connected to the first connecting pipe (222) and the second connecting pipe (223) respectively; the first connecting pipe (222) is connected to the first moving block (46);The outer wall of the rotating rod (42) is fitted with a driven bevel gear (47), which meshes with a second meshing bevel gear (48). A second connecting screw (49) is provided at the end of the feeding frame (1) away from the first connecting screw (45). The second connecting screw (49) passes through the second meshing bevel gear (48). One end of the second connecting screw (49) is rotatably connected to one end of the support frame (3) along its length, and the other end of the second connecting screw (49) is rotatably connected to the other end of the support frame (3) along its length. A second moving block (410) is fitted on the outer wall of the second connecting screw (49). The second moving block (410) is connected to the second connecting pipe (223), and the second moving block (410) is in contact with the side wall of the second limiting plate (32). The rotation directions of the first connecting screw (45) and the second connecting screw (49) are opposite. The moving block (46) is rotatably provided with a first rotating shaft (460), which is rotatably connected to a first rotating gear (461). A first connecting pipe (222) passes through the first rotating shaft (460) and the first rotating gear (461). A first connecting rack (311) is provided on the side wall of the first limiting plate (31), and the first connecting rack (311) meshes with the first rotating gear (461). The second moving block (410) is provided with a second rotating shaft (4100), which is rotatably connected to a second rotating gear (4101). A second connecting pipe (223) passes through the second rotating shaft (4100) and the second rotating gear (4101). A second connecting rack (322) is provided on the side wall of the second limiting plate (32), and the second connecting rack (322) meshes with the second rotating gear (4101).

2. The concrete environmental protection feeding mechanism according to claim 1, characterized in that: The support frame (3) has a first protective plate (33) on the side near the first limiting plate (31), a second protective plate (34) on the side near the second limiting plate (32), and a third protective plate (35) on the end of the support frame (3) away from the hopper (11).

3. The concrete environmental protection feeding mechanism according to claim 2, characterized in that: A dust collection device (5) is provided at the feeding frame (1). The dust collection device (5) includes a dust collection fan (51), a suction pipe (52) and a collection box (53). The suction pipe (52) is connected to the first protective plate (33). The dust collection fan (51) and the suction pipe (52) are connected. The end of the suction pipe (52) away from the support frame (3) is connected to the collection box (53).

4. The concrete environmental protection feeding mechanism according to claim 3, characterized in that: The lower end of the feeding frame (1) is provided with a receiving frame (6), and the connection between the suction pipe (52) and the first protective plate (33) is located above the receiving frame (6).

5. The concrete environmental protection feeding mechanism according to claim 4, characterized in that: The lower end of the support frame (3) is provided with a support plate (36), and the receiving frame (6) is located above the support plate (36). The support plate (36) is provided with a sliding groove (361), and a roller (37) is rotatably provided on the inner wall of the sliding groove (361). The roller (37) is in contact with the receiving frame (6).

6. The concrete environmental protection feeding mechanism according to claim 5, characterized in that: A stabilizing plate (7) is rotatably provided at the opening of the support frame (3), and a magnetic element (71) is provided on the side wall of the stabilizing plate (7). An adsorption element (38) is provided on the side wall of the support frame (3) and is attracted to the magnetic element (71).

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