Concrete paver for municipal road construction

Abstract

The utility model discloses a concrete paver for municipal road construction. The concrete paver comprises a feed port, a stirring box, a stirring mechanism, a discharge port, a dredging mechanism, a first supporting leg, a transverse plate, a paving mechanism, a second supporting leg, moving wheels and a handrail, the dredging mechanism comprises a hydraulic rod, a fixing frame, a sliding block, clamping plates, a transverse frame, a round rod and a pointed cone block, the fixing frame is fixedly arranged at the bottom end of the hydraulic rod, the sliding block is inserted into the fixing frame and slides along the fixing frame, the clamping plates are fixedly arranged at the bottom end of the sliding block, the ends, close to each other, of the two clamping plates make contact with the side wall of the clamping plate, and a connecting block is fixedly connected with the inner wall of the transverse frame. The top end of the round rod is fixedly connected with the pointed cone block. The round rod and the pointed cone block are arranged, the pointed cone block is fixedly arranged at the top end of the round rod, when the hydraulic rod and the transverse frame are used in cooperation, the pointed cone block moves upwards to poke clamped materials, the materials are damaged, meanwhile, when the transverse frame is driven by the hydraulic rod to move downwards, the pointed cone block drives the materials downwards to move, and the materials are damaged. And the materials in the discharge port are further dredged.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, and more specifically, to a concrete paver for municipal road construction. Background Technology

[0002] In road construction, concrete paving is a key step in ensuring road surface quality. Simply put, concrete paving is the process of laying pre-mixed concrete material evenly and continuously in a predetermined location to achieve the designed thickness and flatness.

[0003] Patent CN215561707U discloses an energy-saving concrete paving device for road construction, including a storage bin. A feeding pipe is provided on the front side of the top of the storage bin, and a discharge pipe is provided in the middle of the bottom of the storage bin. A horizontal plate is fixedly connected to the upper side of the right end face of the storage bin, and a fixing plate is fixedly connected to the right end face of the horizontal plate. A leveling device is provided on the left side of the bottom end face of the horizontal plate, and two electric push rods are provided on the right side of the bottom end face of the horizontal plate. A U-shaped plate is fixedly connected to the bottom end of the two electric push rods. A rolling roller is movably installed between the two vertical plates of the U-shaped plate. Support columns are fixedly connected to the four corners of the bottom end face of the storage bin and the front and rear sides of the bottom end face of the horizontal plate. Universal wheels are installed at the bottom ends of the support columns. This patent integrates concrete laying, leveling, and compaction into a single device, saving time and labor and improving work efficiency. However, the discharge port of this patent lacks a clearing mechanism, which can easily lead to concrete or asphalt lumps forming during discharge, causing the discharge port to become blocked and affecting the discharge rate. If workers were to clear the blockage, the machine would need to be stopped, thus impacting the construction speed of the project. Utility Model Content

[0004] This invention aims to overcome the problem of material discharge rate being affected by caking at the discharge port, and provides a concrete paver for municipal road construction.

[0005] A concrete paver for municipal road construction includes a feed inlet, a mixing tank, a mixing mechanism, a discharge outlet, a dredging mechanism, a first support leg, a cross plate, a paving mechanism, a second support leg, wheels, and a handrail. The feed inlet is fixedly located on one side of the top surface of the mixing tank and connected to the interior of the mixing tank. The mixing mechanism is located inside the mixing tank and rotatably connected to it. The discharge outlet is fixedly located on the bottom surface of the mixing tank and connected to the interior of the mixing tank. The dredging mechanism is located on the discharge outlet. The first support leg is fixedly located at the front end of the bottom surface of the mixing tank. The cross plate is fixedly located on the rear side wall of the mixing tank. The paving mechanism is located on the cross plate. The second support leg is fixedly located at the rear end of the bottom surface of the cross plate. Four wheels are fixedly located at the bottom ends of the first and second support legs. The handrail is fixedly located on the rear side wall of the cross plate.

[0006] The unblocking mechanism includes a hydraulic rod, a fixed frame, a slider, a clamping plate, a horizontal frame, a round rod, and a pointed cone. The hydraulic rod is fixedly installed on the side wall of the discharge port. The fixed frame is fixedly installed at the bottom end of the hydraulic rod. The slider is inserted into the fixed frame and slides along the fixed frame. The clamping plate is fixedly installed at the bottom end of the slider. The two ends of the horizontal frame are fixedly installed with clamping plates. The end of the two clamping plates that are close to each other contacts the side wall of the clamping plate. The bottom end of the round rod is fixedly installed with a connecting block. The connecting block is fixedly connected to the inner wall of the horizontal frame. The top end of the round rod is inserted into the discharge port and fixedly connected to the pointed cone.

[0007] Furthermore, the unblocking mechanism also includes a two-way lead screw, a handle, and a fixing component. The two-way lead screw is inserted into the fixed frame and rotatably connected to the fixed frame. The slider is sleeved on the two-way lead screw and slides along the fixed frame through the two-way lead screw. One end of the two-way lead screw passes through the side wall of the fixed frame and is fixedly connected to the handle. The fixing component is located between the handle and the fixed frame.

[0008] Furthermore, a first spring for auxiliary fixing is sleeved on the bidirectional lead screw. One end of the first spring is fixedly connected to the inner wall of the fixing frame, and the other end of the first spring is fixedly connected to the side wall of the slider.

[0009] Furthermore, the fixing component includes a pull rod, a baffle, and an insert. The pull rod passes through the handle and slides along the handle. The baffle is fixedly installed at one end of the pull rod. One end of the insert is fixedly connected to the side wall of the baffle, and the other end of the insert is inserted into the inside of the fixing frame.

[0010] Furthermore, a second spring for auxiliary fixing is sleeved on the pull rod. One end of the second spring is fixedly connected to the side wall of the handle, and the other end of the second spring is fixedly connected to the side wall of the baffle.

[0011] Furthermore, the stirring mechanism includes a stirring rod and stirring blades. The stirring rod is inserted into the mixing box and rotatably connected to the mixing box, and several stirring blades are fixedly installed on the side wall of the stirring rod.

[0012] Furthermore, the top of the stirring rod penetrates through the top surface of the mixing tank and is fixedly equipped with a first servo motor for rotating the stirring rod.

[0013] Furthermore, the paving mechanism includes a vertical frame, a mounting plate, a first connecting rod, a leveling plate, a vibrating motor, a second connecting rod, a U-shaped plate, and a compaction roller. The vertical frame is fixedly installed on the bottom surface of the horizontal plate. The mounting plate passes through the vertical frame and slides along the vertical frame. The first connecting rod is fixedly installed at the front end of the bottom surface of the mounting plate. The leveling plate is fixedly installed at the bottom ends of the two first connecting rods. Several vibrating motors are fixedly installed on the top surface of the leveling plate. The second connecting rod is fixedly installed at the rear end of the bottom surface of the mounting plate. The U-shaped plate is fixedly installed at the bottom ends of the two second connecting rods. The compaction roller is inserted into the U-shaped plate and rotatably connected to the U-shaped plate.

[0014] Furthermore, the paving mechanism also includes a one-way screw, which is inserted between the horizontal plate and the vertical frame and is rotatably connected to the horizontal plate and the vertical frame. The mounting plate is sleeved on the one-way screw and slides along the vertical frame through the one-way screw.

[0015] Furthermore, a second servo motor for rotating the unidirectional lead screw is fixedly installed at the top of the horizontal plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] ①The concrete paver for municipal road construction provided by this utility model is equipped with a round rod and a pointed cone block. The pointed cone block is fixedly set at the top of the round rod. When the hydraulic rod and the cross frame work together, the pointed cone block moves upward to poke and break the stuck material. At the same time, when the cross frame is driven downward by the hydraulic rod, the pointed cone block moves downward to drive the material to move, further clearing the material in the discharge port.

[0018] ②The concrete paver for municipal road construction provided by this utility model improves the stability of the device by setting an insert block, which works in conjunction with the tie rod and the baffle to insert the insert block into the fixed frame and lock the handle. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the concrete paver used for municipal road construction in this utility model.

[0021] Figure 2 This is a schematic diagram of the specific structure of the unblocking mechanism and the mixing mechanism in this utility model.

[0022] Figure 3 This is an enlarged view of point A in this utility model.

[0023] In the diagram: 1. Feed inlet; 2. Mixing tank; 3. Discharge outlet; 4. First support leg; 5. Horizontal plate; 6. Second support leg; 7. Moving wheel; 8. Handrail; 9. Hydraulic rod; 10. Fixed frame; 11. Slider; 12. Clamping plate; 13. Horizontal frame; 14. Round rod; 15. Conical block; 16. Clamping plate; 17. Connecting block; 18. Bidirectional lead screw; 19. Rotary handle; 20. First spring; 21. Pull rod; 22. Baffle plate; 23. Insert block; 24. Second spring; 25. Mixing rod; 26. Mixing blade; 27. First servo motor; 28. Vertical frame; 29. ​​Mounting plate; 30. First connecting rod; 31. Flat plate; 32. Vibration motor; 33. Second connecting rod; 34. U-shaped plate; 35. Roller; 36. Unidirectional lead screw; 37. Second servo motor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 As shown, a concrete paver for municipal road construction includes an inlet 1, a mixing tank 2, a mixing mechanism, an outlet 3, a dredging mechanism, a first support leg 4, a cross plate 5, a paving mechanism, a second support leg 6, casters 7, and handrails 8. The inlet 1 is fixedly located on one side of the top surface of the mixing tank 2 and communicates with the interior of the mixing tank 2. The mixing mechanism is located inside the mixing tank 2 and is rotatably connected to the mixing tank 2. The outlet 3 is fixedly located on the bottom surface of the mixing tank 2 and communicates with the interior of the mixing tank 2. The dredging mechanism is located on the outlet 3. The first support leg 4 is fixedly located at the front end of the bottom surface of the mixing tank 2. The cross plate 5 is fixedly located on the rear side wall of the mixing tank 2. The paving mechanism is located on the cross plate 5. The second support leg 6 is fixedly located at the rear end of the bottom surface of the cross plate 5. Four casters 7 are fixedly located on the cross plate 5. The bottom ends of the first leg 4 and the second leg 6, and the handrail 8 are fixedly installed on the rear side wall of the horizontal plate 5. Specifically, the top side of the mixing tank 2 is welded with a feed inlet 1, which is connected to the interior of the mixing tank 2. The mixing tank 2 is equipped with a mixing mechanism, which is rotatably connected to the mixing tank 2. The bottom surface of the mixing tank 2 is welded with a discharge outlet 3, which is connected to the interior of the mixing tank 2. A dredging mechanism is provided on the discharge outlet 3. The front end of the bottom of the mixing tank 2 is welded with the first leg 4. The rear side wall of the mixing tank 2 is welded with a horizontal plate 5, which is equipped with a spreading mechanism. The rear end of the bottom surface of the horizontal plate 5 is welded with the second leg 6. Four moving wheels 7 are welded to the bottom ends of the first leg 4 and the second leg 6, respectively. The rear side wall of the horizontal plate 5 is welded with a handrail 8.

[0026] like Figure 2 As shown, the unblocking mechanism includes a hydraulic rod 9, a fixed frame 10, a slider 11, a clamping plate 12, a horizontal frame 13, a round rod 14, and a pointed cone block 15. The hydraulic rod 9 is fixedly installed on the side wall of the discharge port 3. The fixed frame 10 is fixedly installed at the bottom end of the hydraulic rod 9. The slider 11 is inserted into the fixed frame 10 and slides along the fixed frame 10. The clamping plate 12 is fixedly installed at the bottom end of the slider 11. The horizontal frame 13 has clamping plates 16 fixedly installed at both ends. The ends of the two clamping plates 12 that are close to each other are in contact with the side wall of the clamping plate 16. The bottom end of the round rod 14 is fixedly installed with a connecting block 17, which is fixedly connected to the inner wall of the horizontal frame 13. The top end of the round rod 14 is inserted into the discharge port 3 and... The hydraulic rod 9 is fixedly connected to the cone block 15. Specifically, the hydraulic rod 9 is fixed to the side wall of the discharge port 3 through the base. The fixed frame 10 is welded to the bottom end of the hydraulic rod 9. The slider 11 is inserted into the fixed frame 10 and slides along the fixed frame 10. The bottom end of the slider 11 is welded with a clamping plate. The two ends of the horizontal frame 13 are welded with clamping plates 16. The ends of the two clamping plates 12 that are close to each other are in contact with the side wall of the clamping plate 16. The bottom end of the round rod 14 is welded with a connecting block 17. The connecting block 17 is welded to the inner wall of the horizontal frame 13. An opening is left between the horizontal frame 13 and the connecting block 17 for material leakage. The top end of the round rod 14 is inserted into the discharge port 3 and welded to the cone block 15.

[0027] In this utility model, by setting a round rod 14 and a pointed cone 15, the pointed cone 15 is fixedly set at the top of the round rod 14. When the hydraulic rod 9 and the horizontal frame 13 work together, the pointed cone 15 moves upward to poke and break the stuck material. At the same time, when the horizontal frame 13 is driven downward by the hydraulic rod 9, the pointed cone 15 moves downward to drive the material, further clearing the material in the discharge port 3.

[0028] The unblocking mechanism also includes a bidirectional lead screw 18, a handle 19, and a fixing component. The bidirectional lead screw 18 is inserted into the fixed frame 10 and rotatably connected to the fixed frame 10. The slider 11 is sleeved on the bidirectional lead screw 18 and slides along the fixed frame 10 through the bidirectional lead screw 18. One end of the bidirectional lead screw 18 passes through the side wall of the fixed frame 10 and is fixedly connected to the handle 19. The fixing component is disposed between the handle 19 and the fixed frame 10. Specifically, the bidirectional lead screw 18 is inserted into the fixed frame 10 and rotatably connected to the fixed frame 10. The slider 11 has a through hole. The slider 11 is sleeved on the bidirectional lead screw 18 through the through hole and slides along the fixed frame 10 through the bidirectional lead screw 18. One end of the bidirectional lead screw 18 passes through the side wall of the fixed frame 10 and is welded to the handle 19. The fixing component is disposed between the handle 19 and the fixed frame 10.

[0029] A first spring 20 for auxiliary fixing is sleeved on the bidirectional lead screw 18. One end of the first spring 20 is fixedly connected to the inner wall of the fixing frame 10, and the other end of the first spring 20 is fixedly connected to the side wall of the slider 11. Specifically, the two ends of the bidirectional lead screw 18 are sleeved with the first spring 20 for auxiliary fixing. One end of the first spring 20 is welded to the inner wall of the fixing frame 10, and the other end of the first spring 20 is welded to the side wall of the slider 11.

[0030] like Figure 3 As shown, the fixing assembly includes a pull rod 21, a baffle 22, and a plug 23. The pull rod 21 passes through the handle 19 and slides along the handle 19. The baffle 22 is fixedly disposed at one end of the pull rod 21. One end of the plug 23 is fixedly connected to the side wall of the baffle 22, and the other end of the plug 23 is inserted into the fixing frame 10. Specifically, the pull rod 21 passes through the handle 19 and slides along the handle 19. The baffle 22 is welded to one end of the pull rod 21, and one end of the plug 23 is welded to the side wall of the baffle 22. The side wall of the fixing frame 10 has an insertion hole, and the other end of the plug 23 is inserted into the insertion hole.

[0031] In this invention, by setting the insert 23, the pull rod 21 and the baffle 22 cooperate to insert the insert 23 into the inside of the fixed frame 10 to lock the handle 19, thereby improving the stability of the device.

[0032] A second spring 24 for auxiliary fixation is sleeved on the pull rod 21. One end of the second spring 24 is fixedly connected to the side wall of the handle 19, and the other end of the second spring 24 is fixedly connected to the side wall of the baffle 22. Specifically, the pull rod 21 is sleeved with a second spring 24 for auxiliary fixation, one end of the second spring 24 is welded to the side wall of the handle 19, and the other end of the second spring 24 is welded to the side wall of the baffle 22.

[0033] The stirring mechanism includes a stirring rod 25 and stirring blades 26. The stirring rod 25 is inserted into the mixing box 2 and rotatably connected to the mixing box 2. Several stirring blades 26 are fixedly installed on the side wall of the stirring rod 25. Specifically, the stirring rod 25 is inserted into the mixing box 2 and rotatably connected to the mixing box 2, and several stirring blades 26 are welded to the side wall of the stirring rod 25.

[0034] The top end of the stirring rod 25 penetrates the top surface of the mixing tank 2 and is fixedly mounted with a first servo motor 27 for rotating the stirring rod 25. Specifically, the first servo motor 27 is fixed to the top surface of the mixing tank 2 via a motor mount, and the top end of the stirring rod 25 penetrates the top surface of the mixing tank 2 and is welded to the output shaft of the first servo motor 27.

[0035] The paving mechanism includes a vertical frame 28, a mounting plate 29, a first connecting rod 30, a leveling plate 31, a vibrating motor 32, a second connecting rod 33, a U-shaped plate 34, and a compaction roller 35. The vertical frame 28 is fixedly mounted on the bottom surface of the horizontal plate 5. The mounting plate 29 passes through the vertical frame 28 and slides along the vertical frame 28. The first connecting rod 30 is fixedly mounted on the front end of the bottom surface of the mounting plate 29. The leveling plate 31 is fixedly mounted on the bottom ends of the two first connecting rods 30. Several vibrating motors 32 are fixedly mounted on the top surface of the leveling plate 31. The second connecting rod 33 is fixedly mounted on the rear end of the bottom surface of the mounting plate 29. The U-shaped plate 34 is fixedly mounted on the bottom ends of the two second connecting rods 33. The pressing roller 35 is inserted into the U-shaped plate 34 and rotatably connected to the U-shaped plate 34. Specifically, a vertical frame 28 is welded to the bottom surface of the base plate, and the mounting plate 29 passes through the vertical frame 28 and slides along the vertical frame 28. A first connecting rod 30 is welded to the front end of the bottom surface of the mounting plate 29, and a flat plate 31 is welded to the bottom end of the two first connecting rods 30. Several vibrating motors 32 are fixed to the top surface of the flat plate 31 through motor bases. A second connecting rod 33 is welded to the rear end of the bottom surface of the mounting plate 29, and a U-shaped plate 34 is welded to the bottom end of the two second connecting rods 33. The pressing roller 35 is inserted into the U-shaped plate 34 and rotatably connected to the U-shaped plate 34.

[0036] The paving mechanism also includes a one-way screw 36, which is inserted between the horizontal plate 5 and the vertical frame 28 and is rotatably connected to the horizontal plate 5 and the vertical frame 28. The mounting plate 29 is sleeved on the one-way screw 36 and slides along the vertical frame 28 through the one-way screw 36. Specifically, the one-way screw 36 is inserted between the horizontal plate 5 and the vertical frame 28 and is rotatably connected to the horizontal plate 5 and the vertical frame 28. The mounting plate 29 has a through hole, which is sleeved on the one-way screw 36 and slides along the vertical frame 28 through the one-way screw 36.

[0037] The top end of the one-way lead screw 36 passes through the horizontal plate 5 and is fixedly mounted with a second servo motor 37 for rotating the one-way lead screw 36. Specifically, the second servo motor 37 is fixed to the top surface of the horizontal plate 5 through a motor mount, and the top end of the one-way lead screw 36 passes through the horizontal plate 5 and is welded to the output shaft of the second servo motor 37.

[0038] The working principle of the concrete paver used for municipal road construction in this embodiment is as follows:

[0039] Raw materials are fed into the mixing tank 2 through the feed inlet 1. The first servo motor 27 rotates its output shaft, the stirring rod 25 rotates with the output shaft, and the stirring blade 26 rotates with the stirring rod 25. The mixed material flows out from the discharge outlet 3. The second servo motor 37 rotates its output shaft, the one-way screw 36 rotates with the output shaft, the mounting plate 29 rotates with the one-way screw 36 and slides along the vertical frame 28, the first connecting rod 30 and the second connecting rod 33 move with the mounting plate 29, the leveling plate 31 moves with the first connecting rod 30, the U-shaped plate 34 moves with the second connecting rod 33, and the rolling roller 35 moves with the U-shaped plate 34. The operator moves the device using the moving wheels 7 and the handrail 8. At the same time, the vibrating motor 32 starts working to level the surface, and the rolling roller 35 rolls along the leveling path. If material gets stuck at the discharge port 3, the hydraulic rod 9 pushes the output end, the fixed frame 10 moves with the output end, the clamping plate 12 moves with the fixed frame 10, the clamping plate 16 moves with the clamping block, the horizontal frame 13 moves with the clamping plate 16, the connecting block 17 moves with the clamping plate 16, the round rod 14 moves with the connecting block 17, and the pointed cone block 15 moves with the round rod 14 to break the stuck material and clear the discharge port 3. Pull the lever 21, the baffle 22 moves with the lever 21, the insert block 23 moves with the baffle 22 to pull out the fixed frame 10, rotate the handle 19, the double-acting screw 18 rotates with the handle 19, the slider 11 rotates with the double-acting screw 18 and slides along the fixed frame 10, the clamping plate 12 moves with the slider 11 to release the clamping plate 16, remove the old horizontal frame 13, replace the new horizontal frame 13, rotate the handle 19, the double-acting screw 18 rotates with the handle 19, the slider 11 rotates with the double-acting screw 18 and slides along the fixed frame 10, the clamping plate 12 moves with the slider 11 to clamp the clamping plate 16, push the lever 21, the baffle 22 moves with the lever 21, the insert block 23 moves with the baffle 22 and inserts into the fixed frame 10, fix the position of the handle 19, and clamp the clamping plate 16 to complete the replacement.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A concrete paver for municipal road construction, characterized by: The utility model provides a paving machine, including feed port (1), stirring box (2), stirring mechanism, discharge port (3), dredging mechanism, first branch (4), cross board (5), paving mechanism, second branch (6), mobile wheel (7) and handrail (8), feed port (1) fixedly arranged in stirring box (2) top one side with stirring box (2) inside is linked together, stirring mechanism is arranged in stirring box (2) inside with stirring box (2) rotation is connected, discharge port (3) is fixedly arranged in stirring box (2) bottom with stirring box (2) inside is linked together, dredging mechanism is arranged in discharge port (3), first branch (4) is fixedly arranged in stirring box (2) bottom front end, cross board (5) is fixedly arranged in stirring box (2) rear end side wall, paving mechanism is arranged in cross board (5), second branch (6) is fixedly arranged in cross board (5) bottom rear end, four mobile wheel (7) is fixedly arranged in first branch (4) and second branch (6) bottom end, handrail (8) is fixedly arranged in cross board (5) rear end side wall, The dredging mechanism includes a hydraulic rod (9), a fixed frame (10), a sliding block (11), a clamping plate (12), a cross frame (13), a round rod (14), and a sharp cone block (15). The hydraulic rod (9) is fixedly arranged on the side wall of the discharge port (3). The fixed frame (10) is fixedly arranged at the bottom end of the hydraulic rod (9). The sliding block (11) is inserted into the fixed frame (10) and slides along the fixed frame (10). The clamping plate (12) is fixedly arranged at the bottom end of the sliding block (11). The cross frame (13) has clamping plates (16) fixedly arranged at both ends. The side wall of the clamping plate (16) is in contact with one end of the two clamping plates (12) that are close to each other. The bottom end of the round rod (14) is fixedly provided with a connecting block (17), and the connecting block (17) is fixedly connected with the inner wall of the cross frame (13). The top end of the round rod (14) is inserted into the inside of the discharge port (3) and is fixedly connected with the sharp cone block (15).

2. The concrete paver for municipal road construction according to claim 1, characterized in that: The dredging mechanism further includes a bidirectional screw rod (18), a rotating handle (19), and a fixed assembly. The bidirectional screw rod (18) is inserted into the fixed frame (10) and is rotationally connected with the fixed frame (10). The sliding block (11) is sleeved on the bidirectional screw rod (18) and slides along the fixed frame (10) through the bidirectional screw rod (18). One end of the bidirectional screw rod (18) penetrates the side wall of the fixed frame (10) and is fixedly connected with the rotating handle (19). The fixed assembly is arranged between the rotating handle (19) and the fixed frame (10).

3. The concrete paver for municipal road construction according to claim 2, characterized in that: A first spring (20) for auxiliary fixation is sleeved on the bidirectional screw rod (18). One end of the first spring (20) is fixedly connected with the inner wall of the fixed frame (10). The other end of the first spring (20) is fixedly connected with the side wall of the sliding block (11).

4. The concrete paver for municipal road construction according to claim 2, characterized in that: The fixing assembly comprises a pull rod (21), a baffle (22) and an insertion block (23), the pull rod (21) penetrates through and slides along the rotating handle (19), the baffle (22) is fixedly arranged at one end of the pull rod (21), and the insertion block (23) is fixedly connected with the side wall of the baffle (22) at one end and is inserted into the inside of the fixing frame (10) at the other end.

5. A concrete paver for municipal road construction as claimed in claim 4 wherein: A second spring (24) is sleeved on the pull rod (21) to assist in fixing, one end of the second spring (24) is fixedly connected with the side wall of the rotating handle (19), and the other end of the second spring (24) is fixedly connected with the side wall of the baffle (22).

6. The concrete paver for municipal road construction of claim 1, wherein: The stirring mechanism comprises a stirring rod (25) and stirring blades (26), the stirring rod (25) is inserted into the inside of the stirring box (2) and is rotationally connected with the stirring box (2), and a plurality of stirring blades (26) are fixedly arranged on the side wall of the stirring rod (25).

7. The concrete paver for municipal road construction according to claim 6, characterized in that: The top end of the stirring rod (25) penetrates through the top surface of the stirring box (2) and is fixedly provided with a first servo motor (27) for rotating the stirring rod (25).

8. The concrete paver for municipal road construction of claim 1, wherein: The paving mechanism comprises a vertical frame (28), a mounting plate (29), a first connecting rod (30), a leveling plate (31), a vibration motor (32), a second connecting rod (33), a U-shaped plate (34) and a rolling roller (35), the vertical frame (28) is fixedly arranged on the bottom surface of the horizontal plate (5), the mounting plate (29) penetrates through and slides along the vertical frame (28), the first connecting rod (30) is fixedly arranged on the bottom surface of the front end of the mounting plate (29), the leveling plate (31) is fixedly arranged on the bottom ends of the two first connecting rods (30), a plurality of vibration motors (32) are fixedly arranged on the top surface of the leveling plate (31), the second connecting rod (33) is fixedly arranged on the bottom surface of the rear end of the mounting plate (29), the U-shaped plate (34) is fixedly arranged on the bottom ends of the two second connecting rods (33), and the rolling roller (35) is inserted into and rotationally connected with the U-shaped plate (34).

9. The concrete paver for municipal road construction according to claim 8, characterized in that: The paving mechanism further comprises a one-way screw rod (36), the one-way screw rod (36) is inserted between and rotationally connected with the horizontal plate (5) and the vertical frame (28), and the mounting plate (29) is sleeved on the one-way screw rod (36) and slides along the vertical frame (28) through the one-way screw rod (36).

10. The concrete paver for municipal road construction according to claim 9, characterized in that: The top end of the one-way screw rod (36) penetrates through the horizontal plate (5) and is fixedly provided with a second servo motor (37) for rotating the one-way screw rod (36).

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