Asphalt laying device for municipal engineering
By using a screw structure for self-locking adjustment of the scraper position, the problem of unstable scraper position is solved, enabling stable height and angle adjustment of the scraper in municipal engineering projects and improving the smoothness of asphalt paving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-06
AI Technical Summary
The existing asphalt paving equipment used in municipal engineering projects is not securely locked or has gaps after the scraper position is adjusted, resulting in uneven road surface and affecting the paving effect.
The scraper position adjustment method adopts a screw structure with self-locking. Through the cooperation of the mounting seat of the leveling mechanism and the limit rod, it ensures that the scraper maintains a stable height and angle, and optimizes the adjustment method to adapt to different paving requirements.
It improves the leveling effect of the scraper, ensures the smoothness of the road surface, and avoids unevenness such as waves, bulges or depressions on the road surface.
Smart Images

Figure CN223974458U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal road construction technology, specifically to an asphalt paving device for municipal engineering. Background Technology
[0002] Asphalt paving equipment for municipal engineering is a type of engineering machinery equipment specifically used for paving municipal asphalt concrete pavements. It can evenly spread asphalt mixture on the municipal roadbed and perform preliminary compaction, avoiding problems such as uneven thickness and poor flatness caused by manual paving, thereby improving the service life and driving comfort of municipal pavements.
[0003] When using asphalt paving equipment for municipal engineering, the asphalt in the hopper is usually laid on the municipal road surface by the conveying equipment. Then, the heating component heats the asphalt through the heat conduction plate to keep it in good fluidity. After that, the vibrating component uses the pressure plate to vibrate and compact the asphalt to make it denser. Finally, the scraper scrapes the compacted asphalt to achieve the ideal paving effect.
[0004] Existing asphalt paving devices for municipal engineering typically require a drive mechanism and gears to adjust the scraper's position to meet different paving requirements. However, after adjusting the scraper's position, additional locking components are usually needed to lock and fix it. If the locking components are not secure or have gaps, the scraper will not be able to maintain a stable height and angle during the paving process, thus affecting the smoothness of the road surface and eventually causing unevenness such as ripples, bumps, or depressions. To address this, we propose an asphalt paving device for municipal engineering. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide an asphalt paving device for municipal engineering. It can adjust the position of the scraper according to the actual situation to adapt to different paving requirements. The adjustment method is optimized. After the position of the scraper is adjusted, it can be self-locked by the screw structure, so that the scraper can maintain a stable height and angle, improve the scraping effect of the scraper, and effectively solve the problems in the background technology.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an asphalt paving device for municipal engineering, comprising a protective cover, a hopper provided on the left side of the upper end of the protective cover, a conveying pipe provided on the left side inside the protective cover, a discharge pipe provided on the lower side of the outer arc surface of the conveying pipe, the lower end of the hopper connected to the upper end of the conveying pipe, a connecting seat provided on the upper side of the left end of the protective cover, a heat-conducting plate and a pressure plate provided on the lower side inside the protective cover, and a scraping mechanism;
[0007] The leveling mechanism includes a connecting rod, a scraper, and a mounting base. The connecting rod is rotatably connected to the right side inside the protective cover. The scraper is located in the middle of the outer arc surface of the connecting rod, and the mounting base is located on the front side of the outer arc surface of the connecting rod. The position of the scraper can be adjusted according to the actual situation to adapt to different paving requirements. The adjustment method is optimized. After the position of the scraper is adjusted, it can be self-locked by the screw structure, so that the scraper can maintain a stable height and angle, thereby improving the leveling effect of the scraper.
[0008] Furthermore, it also includes a control switch assembly located outside the protective cover. The input terminal of the control switch assembly is electrically connected to an external power supply and can regulate the electrical components inside the equipment.
[0009] Furthermore, the scraping mechanism also includes a mounting cover, a crossbar, a connecting plate, a push rod, and a limiting rod. The mounting cover is located on the right side of the front end of the protective cover. A crossbar is provided on the rear side of the right wall of the mounting cover. A limiting plate is provided on the left end of each crossbar. The crossbar is slidably connected to the clearance groove provided on the right end of the connecting plate. A push rod is provided on the right end of the connecting plate. A limiting rod is provided on the right side of the outer arc surface of the push rod. The limiting rod is located in the limiting groove provided on the lower side of the front end of the mounting base, which can adjust the position of the scraper.
[0010] Furthermore, an adjusting seat is slidably connected to the upper side of the left wall of the mounting cover, and a fixed seat is provided on the lower side of the left end of the connecting plate. A screw is rotatably connected to the left side inside the mounting cover, and the screw is threadedly connected to the threaded hole provided in the middle of the upper end of the adjusting seat. A transmission rod is rotatably connected to the right end of the adjusting seat, and the right end of the transmission rod is rotatably connected to the left end of the fixed seat. A motor is provided on the left side of the upper end of the mounting cover, and the lower end of the motor output shaft is fixedly connected to the upper end of the screw. The input end of the motor is electrically connected to the output end of the control switch group, which can adjust the position of the connecting plate.
[0011] Furthermore, a drive motor is provided on the left side of the front end of the protective cover, and an output rod is rotatably connected inside the conveying pipe. The rear end of the output shaft of the drive motor is fixedly connected to the front end of the output rod. Spiral blades are provided on the front and rear sides of the outer arc surface of the output rod. The input end of the drive motor is electrically connected to the output end of the control switch group, which can drive the asphalt to move and finally discharge it through the discharge pipe.
[0012] Furthermore, the heat-conducting plate is equipped with an electric heating wire inside. The input end of the electric heating wire is electrically connected to the output end of the control switch group, which can heat the asphalt and keep it in good fluidity.
[0013] Furthermore, an electric push rod is provided on the left side of the top wall of the protective cover. The lower end of the telescopic end of the electric push rod is fixedly connected to the upper end of the heat-conducting plate. The electric push rod is located on the right side of the conveying pipe. The input end of the electric push rod is electrically connected to the output end of the control switch group, which can adjust the position of the heat-conducting plate.
[0014] Furthermore, a fixing rod is respectively provided on the right side of the top wall of the protective cover. The fixing rod is located between the right end of the electric push rod and the left end of the scraper. A sliding column is slidably connected in the sliding groove opened at the lower end of the fixing rod. The lower ends of the two sliding columns are fixedly connected to the upper end of the pressure plate. A baffle is provided at the upper end of the sliding column. The baffle is slidably connected to the inner wall of the fixing rod. A spring is provided between the lower end of the baffle and the bottom wall of the fixing rod. The spring is sleeved on the outside of the upper side of the sliding column. A vibration motor is provided at the upper end of the pressure plate. The input end of the vibration motor is electrically connected to the output end of the control switch group, which can vibrate and compact the asphalt to make it more compact.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This asphalt paving device for municipal engineering has the following advantages:
[0016] During the asphalt paving process in municipal engineering, the position of the scraper can be adjusted according to the actual situation by the combination of the mounting base and the limiting rod to adapt to different paving requirements. This optimizes the adjustment method. After the position of the scraper is adjusted, it can be self-locked by the screw structure, so that the scraper can maintain a stable height and angle, thereby improving the scraping effect of the scraper. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the front sectional structure of the present invention;
[0019] Figure 3 This is a schematic diagram of the upper sectional structure of this utility model;
[0020] Figure 4 This is an enlarged structural diagram of point A in this utility model.
[0021] In the diagram: 1 Protective cover, 2 Control switch group, 3 Feeding hopper, 4 Conveying pipe, 5 Feeding pipe, 6 Scraping mechanism, 61 Connecting rod, 62 Scraper, 63 Mounting seat, 64 Mounting cover, 65 Crossbar, 66 Connecting plate, 67 Push rod, 68 Limiting rod, 7 Adjusting seat, 8 Fixed seat, 9 Screw, 10 Transmission rod, 11 Motor, 12 Connecting seat, 13 Drive motor, 14 Output rod, 15 Spiral blade, 16 Heat-conducting plate, 17 Pressure plate, 18 Electric push rod, 19 Electric heating wire, 20 Fixed rod, 21 Sliding column, 22 Baffle, 23 Spring, 24 Vibration motor. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-4 This embodiment provides a technical solution: an asphalt paving device for municipal engineering, including a protective cover 1, a hopper 3 is provided on the left side of the upper end of the protective cover 1, a conveying pipe 4 is provided on the left side inside the protective cover 1, a hopper 5 is provided on the lower side of the outer arc surface of the conveying pipe 4, the lower end of the hopper 3 is connected to the upper end of the conveying pipe 4, a connecting seat 12 is provided on the upper side of the left end of the protective cover 1, a heat-conducting plate 16 and a pressure plate 17 are provided on the lower side inside the protective cover 1, and a scraping mechanism 6 is also included.
[0024] The leveling mechanism 6 includes a connecting rod 61, a scraper 62, and a mounting base 63. The connecting rod 61 is rotatably connected to the right side inside the protective cover 1. The scraper 62 is located in the middle of the outer arc surface of the connecting rod 61, and the mounting base 63 is located on the front side of the outer arc surface of the connecting rod 61. The leveling mechanism 6 also includes a mounting cover 64, a crossbar 65, a connecting plate 66, a push rod 67, and a limiting rod 68. The mounting cover 64 is located on the right side of the front end of the protective cover 1. A crossbar 65 is located on the rear side of the right wall of the mounting cover 64. A limiting plate is located on the left end of each crossbar 65. The crossbar 65 is aligned with the right end of the connecting plate 66. The sliding connection with the clearance groove should be provided. A push rod 67 is provided at the right end of the connecting plate 66. A limit rod 68 is provided on the right side of the outer arc surface of the push rod 67. The limit rod 68 is located in the limit groove provided on the lower side of the front end of the mounting base 63. Through the cooperation between the mounting base 63 and the limit rod 68, the position of the scraper 62 can be adjusted according to the actual situation to adapt to different paving requirements. The adjustment method is optimized. After the position of the scraper 62 is adjusted, it can be self-locked by the screw structure, so that the scraper 62 can maintain a stable height and angle, thereby improving the leveling effect of the scraper 62.
[0025] It also includes a control switch group 2, which is located outside the protective cover 1. The input terminal of the control switch group 2 is electrically connected to an external power supply and can regulate the electrical components inside the equipment.
[0026] The mounting cover 64 has an adjusting seat 7 slidably connected to the upper side of its left wall. A fixed seat 8 is provided on the lower side of the left end of the connecting plate 66. A screw 9 is rotatably connected to the left side inside the mounting cover 64. The screw 9 is threadedly connected to the threaded hole in the middle of the upper end of the adjusting seat 7. A transmission rod 10 is rotatably connected to the right end of the adjusting seat 7. The right end of the transmission rod 10 is rotatably connected to the left end of the fixed seat 8. A motor 11 is provided on the left side of the upper end of the mounting cover 64. The lower end of the output shaft of the motor 11 is fixedly connected to the upper end of the screw 9. The input end of the motor 11 is electrically connected to the output end of the control switch group 2. By controlling the control switch group 2, the motor 11 starts to run. The output shaft of the motor 11 drives the screw 9 to rotate. During the rotation of the screw 9, the adjusting seat 7 will move downward through the threaded connection. During the downward movement of the adjusting seat 7, the transmission rod 10 will give the fixed seat 8 a rightward push. The fixed seat 8 will then drive the push rod 67 to move to the right through the connecting seat 66.
[0027] The protective cover 1 has a drive motor 13 on the left side of its front end. The conveying pipe 4 is rotatably connected to an output rod 14. The rear end of the output shaft of the drive motor 13 is fixedly connected to the front end of the output rod 14. Spiral blades 15 are respectively provided on the front and rear sides of the outer arc surface of the output rod 14. The input end of the drive motor 13 is electrically connected to the output end of the control switch group 2. By adjusting the control switch group 2, the drive motor 18 starts to run. The output shaft of the drive motor 18 drives the two spiral blades 15 to rotate through the output rod 14. The two spiral blades 15 rotate in opposite directions. During the rotation of the spiral blades 15, the asphalt begins to move away from the center of the conveying pipe 4 under the push of the spiral blades 15, and finally is discharged through the discharge pipe 5.
[0028] The heat-conducting plate 16 is equipped with an electric heating wire 19. The input end of the electric heating wire 19 is electrically connected to the output end of the control switch group 2. When the lower end of the heat-conducting plate 16 contacts the upper surface of the asphalt, the electric heating wire 19 starts to run through the control switch group 2. The electric heating wire 19 heats the asphalt through the heat-conducting plate 16 to maintain its good fluidity.
[0029] Wherein: An electric push rod 18 is provided on the left side of the top wall of the protective cover 1. The lower end of the telescopic end of the electric push rod 18 is fixedly connected to the upper end of the heat-conducting plate 16. The electric push rod 18 is located on the right side of the conveying pipe 4. The input end of the electric push rod 18 is electrically connected to the output end of the control switch group 2. By adjusting the control switch group 2, the electric push rod 18 starts to run, and the telescopic end of the electric push rod 18 extends, thereby causing the electric push rod 18 to drive the heat-conducting plate 16 to move downward, so that the lower end of the heat-conducting plate 16 contacts the upper surface of the asphalt.
[0030] The protective cover 1 has a fixed rod 20 on the right side of its top wall. The fixed rod 20 is located between the right end of the electric push rod 18 and the left end of the scraper 62. The fixed rod 20 has a sliding column 21 slidably connected in the groove at the lower end of the fixed rod 20. The lower ends of the two sliding columns 21 are fixedly connected to the upper end of the pressure plate 17. The upper end of the sliding column 21 is provided with a baffle 22. The baffle 22 is slidably connected to the inner wall of the fixed rod 20. The lower end of the baffle 22 is provided between the bottom wall of the fixed rod 20 and the bottom wall of the fixed rod 20. The spring 23 is sleeved on the upper side of the sliding column 21. The pressure plate 17 has a vibration motor 24 at its upper end. The input end of the vibration motor 24 is electrically connected to the output end of the control switch group 2. By controlling the control switch group 2, the vibration motor 21 starts to run. The vibration motor 21 vibrates and compacts the asphalt through the pressure plate 17, making it more compact.
[0031] The working principle of the asphalt paving device for municipal engineering provided by this utility model is as follows: Before use, the connecting seat 12 is connected to the external traction equipment. Then, by controlling the switch group 2, the motor 11 starts to run. The output shaft of the motor 11 drives the screw 9 to rotate. During the rotation of the screw 9, the adjusting seat 7 will move downward through the threaded connection. During the downward movement of the adjusting seat 7, the fixed seat 8 will be pushed to the right through the transmission rod 10. The fixed seat 8 will then drive the push rod 67 to move to the right through the connecting seat 66. The push rod 67 will drive the... The limiting rod 68 moves to the right. At this time, the limiting rod 68 slides inside the limiting groove and rotates relative to the limiting groove, so that the push rod 67 drives the mounting base 63 to rotate through the limiting rod 68. The mounting base 63 then drives the scraper 62 to rotate through the connecting rod 61, thereby adjusting the position of the scraper 62. After the position of the scraper 62 is adjusted, the asphalt is poured into the hopper 3 through external equipment. Subsequently, during the operation of the asphalt paving device for municipal engineering, the drive motor 18 is started to run through the control switch group 2. The output of the drive motor 18... The shaft drives two spiral blades 15 to rotate via the output rod 14. The two spiral blades 15 rotate in opposite directions. During the rotation of the spiral blades 15, the asphalt begins to move away from the center of the conveying pipe 4 under the pushing force of the spiral blades 15, and is finally discharged through the discharge pipe 5, thus laying the asphalt on the road surface. Then, the municipal engineering asphalt paving device is moved to the left by the external traction equipment. When the heat-conducting plate 16 moves to the upper side of the asphalt, the electric push rod 18 starts to operate through the control switch group 2. The telescopic end of the electric push rod 18 extends from... The electric push rod 18 drives the heat-conducting plate 16 to move downward. When the lower end of the heat-conducting plate 16 contacts the upper surface of the asphalt, the electric heating wire 19 starts to run through the control switch group 2. The electric heating wire 19 heats the asphalt through the heat-conducting plate 16 to maintain its good fluidity. Then, through the control switch group 2, the vibration motor 21 starts to run. The vibration motor 21 vibrates and compacts the heated asphalt through the pressure plate 17 to make it denser. Finally, the scraper 17 scrapes the compacted asphalt to achieve the ideal paving effect.
[0032] It is worth noting that the motor 11 and drive motor 13 disclosed in the above embodiments can be ECMA-C20604RS, the electric push rod 18 can be YRJ0905, the vibration motor 24 can be YZS-8-6, and the control switch group 2 is provided with control buttons corresponding to the motor 11, drive motor 13, electric push rod 18, electric heating wire 19 and vibration motor 24 for controlling their switches.
[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An asphalt paving device for municipal engineering, comprising a protective cover (1), a hopper (3) provided on the left side of the upper end of the protective cover (1), a conveying pipe (4) provided on the left side inside the protective cover (1), a discharge pipe (5) provided on the lower side of the outer arc surface of the conveying pipe (4), the lower end of the hopper (3) being connected to the upper end of the conveying pipe (4), a connecting seat (12) provided on the upper side of the left end of the protective cover (1), and a heat-conducting plate (16) and a pressure plate (17) provided on the lower side inside the protective cover (1), characterized in that: Also include the scraping mechanism (6); The scraping mechanism (6) comprises a connecting rod (61), a scraper (62) and a mounting seat (63), the connecting rod (61) is rotatably connected to the right side inside the protective cover (1), the outer arc surface of the connecting rod (61) is provided with the scraper (62) in the middle, and the outer arc surface of the connecting rod (61) is provided with the mounting seat (63) on the front side.
2. The asphalt laying device for municipal engineering according to claim 1, characterized in that: Also include control switch group (2), the control switch group (2) is located in the outside of the protective cover (1), and the input end of the control switch group (2) is electrically connected with the external power supply.
3. The asphalt laying device for municipal works as claimed in claim 2 wherein: The scraping mechanism (6) further comprises a mounting cover (64), a cross rod (65), a connecting plate (66), a push rod (67) and a limiting rod (68), the mounting cover (64) is arranged on the right side of the front end of the protective cover (1), the rear side of the right wall of the mounting cover (64) is provided with the cross rod (65), the left end of the cross rod (65) is provided with the limiting plate, the cross rod (65) is slidably connected with the avoiding slot correspondingly arranged on the right end of the connecting plate (66), the right end of the connecting plate (66) is provided with the push rod (67), the right side of the outer arc surface of the push rod (67) is provided with the limiting rod (68), and the limiting rod (68) is located in the limiting slot arranged on the lower side of the front end of the mounting seat (63).
4. The asphalt laying device for municipal works as claimed in claim 3 wherein: The left wall of the mounting cover (64) is slidably connected with the adjusting seat (7), the lower side of the left end of the connecting plate (66) is provided with the fixing seat (8), the screw rod (9) is rotatably connected to the left side inside the mounting cover (64), the screw rod (9) is threadedly connected with the threaded hole arranged in the middle of the upper end of the adjusting seat (7), the right end of the adjusting seat (7) is rotatably connected with the transmission rod (10), the right end of the transmission rod (10) is rotatably connected with the left end of the fixing seat (8), the left side of the upper end of the mounting cover (64) is provided with the motor (11), the lower end of the output shaft of the motor (11) is fixedly connected with the upper end of the screw rod (9), and the input end of the motor (11) is electrically connected with the output end of the control switch group (2).
5. The municipal engineering asphalt laying device according to claim 2, characterized in that: The left side of the front end of the protective cover (1) is provided with the driving motor (13), the inside of the conveying pipe (4) is rotatably connected with the output rod (14), the rear end of the output shaft of the driving motor (13) is fixedly connected with the front end of the output rod (14), and the front and rear sides of the outer arc surface of the output rod (14) are respectively provided with the helical blade (15), and the input end of the driving motor (13) is electrically connected with the output end of the control switch group (2).
6. The municipal engineering asphalt laying device according to claim 2, characterized in that: The inside of the heat conducting plate (16) is provided with the electric heating wire (19), and the input end of the electric heating wire (19) is electrically connected with the output end of the control switch group (2).
7. The municipal engineering asphalt laying device according to claim 2, characterized in that: The left side of the top wall of the protective cover (1) is provided with the electric push rod (18), the lower end of the telescopic end of the electric push rod (18) is fixedly connected with the upper end of the heat conducting plate (16), the electric push rod (18) is located on the right side of the conveying pipe (4), and the input end of the electric push rod (18) is electrically connected with the output end of the control switch group (2).
8. The municipal works asphalt laying device as claimed in claim 7, wherein: The right side of the top wall of the protective cover (1) is respectively provided with a fixed rod (20), the fixed rod (20) is located between the right end of the electric push rod (18) and the left end of the scraper (62), a sliding groove is formed in the lower end of the fixed rod (20), a sliding column (21) is slidably connected in the sliding groove, the lower end of the two sliding columns (21) is fixedly connected with the upper end of the pressing plate (17), the upper end of the sliding column (21) is provided with a baffle (22), the baffle (22) is slidably connected with the inner wall of the fixed rod (20), a spring (23) is arranged between the lower end of the baffle (22) and the bottom wall of the fixed rod (20), the spring (23) is sleeved on the outer side of the upper side of the sliding column (21), the upper end of the pressing plate (17) is provided with a vibration motor (24), and the input end of the vibration motor (24) is electrically connected with the output end of the control switch group (2).