Asphalt crack pouring device for highway pavement construction
By designing an asphalt crack sealing device with a structure including a reset spring and a limiting component, the problem of the inability to adjust the asphalt output in the existing technology has been solved, realizing flow control and crack sealing position adjustment, and improving crack sealing efficiency.
Patent Information
- Application Number
- CN202520374626.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing asphalt crack sealing devices cannot adjust the asphalt output, resulting in low sealing efficiency and problems such as asphalt overflow or shortage.
An asphalt crack filling device was designed, which includes a return spring, baffle, connecting rod, slide bar, hinge rod, and limiting component. The asphalt flow rate can be controlled manually, and the filling position can be adjusted under complex crack trajectories.
It enables precise control of asphalt flow and flexible adjustment of the grouting position, improving grouting efficiency and preventing asphalt overflow or shortage.
Smart Images
Figure CN223893198U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road construction, and in particular to an asphalt crack sealing device for highway road construction. Background Technology
[0002] During long-term use, highways inevitably develop various cracks due to repeated vehicle loads, natural environmental factors (such as temperature changes and rainwater erosion), and construction quality. These cracks not only affect the aesthetics of the highway, but more importantly, they have a serious negative impact on the highway's performance and service life.
[0003] The current method of asphalt crack sealing usually involves manually pushing a tanker truck to release asphalt into the crack through a pipeline, followed by manual compaction and repair.
[0004] Existing crack sealing carts typically have a fixed-size outlet at the bottom, resulting in a fixed asphalt flow rate. When filling small or large cracks, asphalt overflow or shortage is likely to occur, making it impossible to adjust the asphalt output and leading to low crack sealing efficiency. Therefore, an asphalt crack sealing device for highway pavement construction is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an asphalt crack sealing device for highway pavement construction, which aims to improve the problem of the inability to adjust the asphalt output in the prior art.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: an asphalt crack sealing device for highway pavement construction, comprising a frame, a housing fixedly connected to the front end of the frame, a baffle elastically connected to the bottom end of the housing via a return spring, a connecting rod fixedly connected to the top of the baffle, a sliding rod fixedly connected to the top of the connecting rod, a hinge rod slidably connected to the outer wall of the top of the connecting rod, a sliding groove opened on the inner side of the front end of the hinge rod, a limit component provided on the outer wall of the hinge rod, a motor fixedly connected to the top right side of the housing, a reciprocating screw fixedly connected to the output end of the motor, a threaded slider threadedly connected to the inner side of the outer wall of the reciprocating screw, and a stirring rod fixedly connected to the bottom of the threaded slider.
[0007] As a further description of the above technical solution:
[0008] A drainage pipe is fixedly connected to the bottom of the box, an auxiliary rod is fixedly connected to the top of the bottom end of the drainage pipe, an extension rod is fixedly connected to the top of the auxiliary rod, a retaining ring is fixedly connected to the top of the extension rod, and an auxiliary groove is opened at the top of the bottom end of the box.
[0009] As a further description of the above technical solution:
[0010] The limiting component includes a limiting block, the outer wall of which is elastically connected to the inner wall of the top crossbar of the frame by a limiting spring, and a limiting groove is formed at the middle of the side wall of the hinge rod.
[0011] As a further description of the above technical solution:
[0012] One end of the return spring is fixedly connected to the top bracket at the bottom of the box, and the other end of the return spring is fixedly connected to the middle bracket of the baffle. The outer wall of the connecting rod is slidably connected to the outer wall of the back of the box, the outer wall of the baffle is slidably connected to the inner wall of the box, the outer wall of the slide rod is slidably connected to the inner wall of the slide groove, and the middle end of the hinge rod is rotatably connected to the middle of the crossbar at the top of the frame.
[0013] As a further description of the above technical solution:
[0014] The end of the reciprocating lead screw is rotatably connected to the inner wall of the housing, and the outer wall of the threaded slider is slidably connected to the top of the inner wall of the housing.
[0015] As a further description of the above technical solution:
[0016] The top of the outer wall of the auxiliary rod is slidably connected to the inner wall of the auxiliary groove, and the inner wall of the retaining ring is slidably connected to the outer wall of the lower crossbar at the top of the frame.
[0017] As a further description of the above technical solution:
[0018] One end of the limiting spring is fixedly connected to the inner wall of the crossbar at the top of the frame, and the other end of the limiting spring is fixedly connected to the outer wall of the end of the limiting block.
[0019] As a further description of the above technical solution:
[0020] The outer wall of the limiting block is slidably connected to the inner wall of the crossbar at the top of the frame, and the front end of the limiting block is engaged with the inner wall of the limiting groove.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, by setting a reset spring, baffle, connecting rod, sliding rod, hinge rod, slide groove, and limiting component, when injecting asphalt, the limiting block is released by manually moving it laterally, and then the hinge rod is rotated to drive the connecting rod to move up and down, and then the connecting rod drives the baffle to move on the inner wall of the box, thereby changing the speed of asphalt discharge and realizing the control of the asphalt flow rate.
[0023] 2. In this utility model, by setting up a drainage pipe, an auxiliary rod, an extension rod, a retaining ring, and a frame, when the crack trajectory is complex, the frame is moved slowly by hand, and then the retaining ring is moved manually to drive the extension rod to move left and right. Then the extension rod drives the auxiliary rod to move laterally along the auxiliary groove, and then the auxiliary rod drives the drainage pipe to move left and right to align with the crack gap, so as to realize the manual and rapid change of the crack filling position. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of the box body of an asphalt crack sealing device for highway pavement construction proposed in this utility model.
[0025] Figure 2 This is a three-dimensional cross-sectional view of the box body of an asphalt crack sealing device for highway pavement construction proposed in this utility model.
[0026] Figure 3 This is a three-dimensional diagram showing the disassembled hinge rod of an asphalt crack sealing device for highway pavement construction proposed in this utility model.
[0027] Figure 4 This is a three-dimensional schematic diagram of the chassis of an asphalt crack sealing device for highway pavement construction proposed in this utility model.
[0028] Figure 5 This utility model proposes an asphalt crack sealing device for highway pavement construction. Figure 4 Enlarged 3D schematic diagram of part A.
[0029] Legend:
[0030] 1. Frame; 2. Housing; 3. Return spring; 4. Baffle; 5. Connecting rod; 6. Slide rod; 7. Hinge rod; 8. Slide groove; 9. Motor; 10. Reciprocating lead screw; 11. Threaded slider; 12. Stirring rod; 13. Drainage pipe; 14. Auxiliary rod; 15. Extension rod; 16. Snap ring; 17. Auxiliary groove; 18. Limiting block; 19. Limiting spring; 20. Limiting groove. Detailed Implementation
[0031] 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.
[0032] Reference Figure 1 - Figure 3This utility model provides an embodiment of an asphalt crack sealing device for highway pavement construction, comprising a frame 1, with universal casters on the top of the frame 1 for easy manual movement of the frame 1 and the housing 2, the housing 2 being fixedly connected to the front end of the frame 1, a cover plate hinged to the top of the housing 2, and casters at the bottom of the front end for movement with the frame 1, a baffle 4 being elastically connected to the bottom of the housing 2 via a return spring 3, the baffle 4 being snapped against the inner wall of the housing 2 to prevent asphalt from entering the housing 2, a connecting rod 5 being fixedly connected to the top of the baffle 4, the connecting rod 5 being used to extend the baffle 4 to the height of the crossbar on the frame 1 for easy manual operation, reducing bending over and protecting the lumbar spine, a sliding rod 6 being fixedly connected to the top of the connecting rod 5, the sliding rod 6 being used to slide on the inner wall of the groove 8 to avoid deformation of the connecting rod 5 due to direct hinge, a hinge rod 7 being slidably connected to the outer wall of the top of the connecting rod 5, the hinge rod 7 being used to drive the groove 8 to squeeze the asphalt. The connecting rod 6 causes the connecting rod 5 to move upward along the inclined surface of the outer wall of the box 2. The inner side of the front end of the hinge rod 7 is provided with a sliding groove 8, which is used to keep the sliding rod 6 moving on its inner wall. By squeezing the sliding rod 6, the connecting rod 5 moves up and down. The outer wall of the hinge rod 7 is provided with a limit component. One end of the return spring 3 is fixedly connected to the top bracket at the bottom end of the box 2, and the other end of the return spring 3 is fixedly connected to the middle bracket of the baffle 4. Through the opposing squeezing force between the return spring 3 and the bracket of the box 2, the return spring 3 can quickly return to its original position after being stretched. The limit component can be used to release the limit of the hinge rod 7, so that the baffle 4 can quickly rebound and close the bottom of the box 2 through the return spring 3, achieving the effect of emergency stop for grouting. The outer wall of the connecting rod 5 is slidably connected to the outer wall of the back of the box 2. The outer wall of the baffle 4 is slidably connected to the inner wall of the box 2. The outer wall of the sliding rod 6 is slidably connected to the inner wall of the sliding groove 8. The middle end of the hinge rod 7 is rotatably connected to the middle of the crossbar at the top of the frame 1.
[0033] Reference Figure 2 - Figure 4 A motor 9 is fixedly connected to the top right side of the housing 2. The motor 9 is existing technology and will not be described in detail. It is used to drive the reciprocating screw 10 to rotate. The output end of the motor 9 is fixedly connected to the reciprocating screw 10. The reciprocating screw 10 is existing technology. It is used to drive the threaded slider 11 to move back and forth. The threaded slider 11 is threadedly connected to the inner side of the outer wall of the reciprocating screw 10. The threaded slider 11 is used to drive the bottom stirring rod 12 to move back and forth through the reciprocating screw 10 to achieve the mixing effect and avoid the asphalt from hardening due to prolonged stagnation. The bottom of the threaded slider 11 is fixedly connected to the stirring rod 12. The stirring rod 12 is equipped with multiple sets of crossbars that move back and forth on the inner wall of the housing 2 to keep the asphalt active. A heating wire can be set to keep the asphalt at a certain temperature. The end of the reciprocating screw 10 is rotatably connected to the inner wall of the housing 2. The outer wall of the threaded slider 11 is slidably connected to the top of the inner wall of the housing 2.
[0034] Reference Figure 2 - Figure 4A drainage pipe 13 is fixedly connected to the bottom of the box body 2. The drainage pipe 13 is used to flow asphalt into the road cracks and is fixed at the center of the bottom of the box body 2. The bottom of the box body 2 is provided with a slope so that the asphalt falls naturally into the drainage pipe 13. An auxiliary rod 14 is fixedly connected to the top of the bottom end of the drainage pipe 13. The auxiliary rod 14 is used to extend the drainage pipe 13 to maintain a fixed height. An extension rod 15 is fixedly connected to the top of the auxiliary rod 14. The extension rod 15 is used to extend the auxiliary rod 14 to the top of the frame 1 for easy manual operation. The extension rod 15 is fixedly connected to a retaining ring 16 at its top end. A handle is provided on the outside of the retaining ring 16 for manual gripping and lateral movement. The drainage tube 13 is moved laterally through the retaining ring 16. An auxiliary groove 17 is provided at the top of the bottom end of the housing 2. The auxiliary groove 17 is used to keep the auxiliary rod 14 moving laterally stably and to provide a lateral movement range for the drainage tube 13. The top of the outer wall of the auxiliary rod 14 is slidably connected to the inner wall of the auxiliary groove 17. The inner wall of the retaining ring 16 is slidably connected to the outer wall of the lower crossbar at the top of the frame 1.
[0035] Reference Figure 4 - Figure 5 The limiting component includes a limiting block 18, which has two connected sets of upper and lower limit blocks 18 for opposing engagement with the limiting groove 20 to improve limiting stability. The outer wall of the limiting block 18 is elastically connected to the inner wall of the top crossbar of the frame 1 by a limiting spring 19. A limiting groove 20 is opened at the middle of the side wall of the hinge rod 7. Several sets of limiting grooves 20 are provided for multiple engagement of the limiting block 18 to change the opening size of the baffle 4. One end of the limiting spring 19 is fixedly connected to the inner wall of the top crossbar of the frame 1, and the other end of the limiting spring 19 is fixedly connected to the outer wall of the end of the limiting block 18. Through the opposing pressing force between the limiting spring 19 and the inner wall of the top crossbar of the frame 1, the limiting block 18 is always engaged with the inner wall of the limiting groove 20 without being affected by external force. The outer wall of the limiting block 18 is slidably connected to the inner wall of the top crossbar of the frame 1, and the front end of the limiting block 18 is engaged with the inner wall of the limiting groove 20.
[0036] Working principle: When the crack size and depth are different, the limiting block 18 is manually moved laterally to disengage from the limiting groove 20 to release the limitation. Then, the end of the hinge rod 7 is manually pressed down or raised to drive the sliding groove 8 to squeeze the sliding rod 6 to move up or down. The sliding rod 6 drives the connecting rod 5 to move up and down along the inclined surface of the outer wall of the box 2. Then, the connecting rod 5 drives the baffle 4 to move on the inner wall of the box 2, thereby changing the speed of asphalt discharge and realizing manual control to change the asphalt flow rate, thus improving the crack sealing efficiency.
[0037] When the crack trajectory is complex, the frame 1 is moved slowly by manual movement, and the reciprocating screw 10 is driven to rotate by the motor 9. The reciprocating screw 10 then drives the threaded slider 11 to move back and forth on the top of the inner wall of the box 2. The threaded slider 11 then drives the stirring rod 12 to move back and forth on the inner wall of the box 2. The stirring rod 12 keeps the asphalt active inside the box 2, preventing it from hardening due to prolonged stagnation. The opening size of the baffle 4 is then adjusted by the limiting component, allowing the asphalt to flow into the road crack through the drainage pipe 13. The extension rod 15 is then moved left and right by the manually moved retaining ring 16. The extension rod 15 then drives the auxiliary rod 14 to move laterally along the auxiliary groove 17. Finally, the auxiliary rod 14 drives the drainage pipe 13 to move left and right to align with the crack gap, enabling manual and rapid movement of the drainage pipe 13 to the crack filling position and improving the crack filling efficiency.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. An asphalt crack sealing device for highway pavement construction, comprising a frame (1), characterized in that: The front end of the frame (1) is fixedly connected to a box (2). The bottom end of the box (2) is elastically connected to a baffle (4) via a return spring (3). The top of the baffle (4) is fixedly connected to a connecting rod (5). The top end of the connecting rod (5) is fixedly connected to a sliding rod (6). The outer wall of the top end of the connecting rod (5) is slidably connected to a hinge rod (7). The inner side of the front end of the hinge rod (7) is provided with a sliding groove (8). The outer wall of the hinge rod (7) is provided with a limit component. The top right side of the box (2) is fixedly connected to a motor (9). The output end of the motor (9) is fixedly connected to a reciprocating screw (10). The inner side of the outer wall of the reciprocating screw (10) is threadedly connected to a threaded slider (11). The bottom of the threaded slider (11) is fixedly connected to a stirring rod (12).
2. The asphalt crack sealing device for highway pavement construction according to claim 1, characterized in that: The bottom of the box (2) is fixedly connected to a drainage pipe (13), the bottom end of the drainage pipe (13) is fixedly connected to an auxiliary rod (14), the top of the auxiliary rod (14) is fixedly connected to an extension rod (15), the top of the extension rod (15) is fixedly connected to a retaining ring (16), and an auxiliary groove (17) is opened at the bottom end of the box (2).
3. The asphalt crack sealing device for highway pavement construction according to claim 1, characterized in that: The limiting component includes a limiting block (18), the outer wall of which is elastically connected to the inner wall of the top crossbar of the frame (1) by a limiting spring (19), and a limiting groove (20) is provided at the middle of the side wall of the hinge rod (7).
4. The asphalt crack sealing device for highway pavement construction according to claim 1, characterized in that: One end of the return spring (3) is fixedly connected to the top bracket at the bottom of the box (2), and the other end of the return spring (3) is fixedly connected to the middle bracket of the baffle (4). The outer wall of the connecting rod (5) is slidably connected to the outer wall of the back of the box (2). The outer wall of the baffle (4) is slidably connected to the inner wall of the box (2). The outer wall of the slide rod (6) is slidably connected to the inner wall of the slide groove (8). The middle end of the hinge rod (7) is rotatably connected to the middle of the crossbar at the top of the frame (1).
5. The asphalt crack sealing device for highway pavement construction according to claim 1, characterized in that: The end of the reciprocating lead screw (10) is rotatably connected to the inner wall of the housing (2), and the outer wall of the threaded slider (11) is slidably connected to the top of the inner wall of the housing (2).
6. The asphalt crack sealing device for highway pavement construction according to claim 2, characterized in that: The top of the outer wall of the auxiliary rod (14) is slidably connected to the inner wall of the auxiliary groove (17), and the inner wall of the retaining ring (16) is slidably connected to the outer wall of the lower crossbar at the top of the frame (1).
7. The asphalt crack sealing device for highway pavement construction according to claim 3, characterized in that: One end of the limiting spring (19) is fixedly connected to the inner wall of the crossbar at the top of the frame (1), and the other end of the limiting spring (19) is fixedly connected to the outer wall of the end of the limiting block (18).
8. The asphalt crack sealing device for highway pavement construction according to claim 3, characterized in that: The outer wall of the limiting block (18) is slidably connected to the inner wall of the crossbar at the top of the frame (1), and the front end of the limiting block (18) is engaged with the inner wall of the limiting groove (20).