Crack pouring device for road construction
By designing a grouting device that includes a scraper and a swing arm, the problem of inconvenience in manually smoothing asphalt in existing technologies has been solved. This device achieves automatic smoothing and filling of asphalt, improving ease of operation and extending the service life of the scraper.
Patent Information
- Application Number
- CN202520937446.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-05-13
AI Technical Summary
The existing crack sealing device lacks a scraper and filler component, which means that asphalt needs to be manually scraped and smoothed on road cracks, which is inconvenient.
A crack filling device for road construction was designed, comprising an asphalt bucket, a scraper, a swing arm, and a spring mechanism. The scraper contacts the road cracks, automatically smooths and fills the asphalt, adapts to different inclination angles, and avoids scraper wear.
It achieves automatic asphalt leveling and filling functions, reducing manual operation and improving ease of use and scraper life.
Smart Images

Figure CN223867078U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to road crack pouring technical field especially, it relates to a crack pouring device for road construction. BACKGROUND
[0002] As an effective road preventive maintenance measure, crack pouring technology can prevent water from seeping into the roadbed and delay the development of road diseases, thereby improving the service life and service quality of the road. The device for pouring asphalt is the most widely used crack pouring device in crack pouring technology.
[0003] The existing crack pouring device mostly lacks a scraping and filling assembly for implementing scraping and filling of crack pouring asphalt, so that after the asphalt is discharged on the road cracks, an external scraping tool needs to be manually held to scrape and fill the accumulated asphalt into the cracks, which is inconvenient and troublesome to operate. UTILITY MODEL CONTENT
[0004] Therefore, the utility model provides a crack pouring device for road construction to solve the problem of additional scraping and filling of asphalt, which is inconvenient and troublesome to operate.
[0005] The technical scheme provided by the utility model is as follows: a crack pouring device for road construction, specifically comprising an asphalt bucket, an incomplete guide ring is welded at the bottom side of the outer periphery of the asphalt bucket;
[0006] A swing rod is rotatably installed at the bottom side of the outer periphery of the asphalt bucket, the swing rod top end portion is in sliding cooperation with the incomplete guide ring in the form of spring pushing, and the swing rod pivot point coincides with the center of the incomplete guide ring; a scraper is fixedly inserted on the tail end portion of the swing rod; during use, the scraper is in abutting contact with the cracks on the road and moves along the cracks, and the molten asphalt discharged on the cracks for filling the cracks is scraped and filled into the cracks.
[0007] Further, two support legs are symmetrically welded at the bottom side of the outer periphery of the asphalt bucket, and two rollers are symmetrically rotatably installed at the bottom end portions of the two support legs.
[0008] Further, a U-shaped handle frame is welded at the top end portion of the outer periphery of the asphalt bucket.
[0009] Further, a conical material collecting cover is welded on the bottom opening of the asphalt bucket, and a discharge pipe with a valve is welded to the bottom end of the conical material collecting cover.
[0010] Further, a discharge nozzle is welded on the bottom end of the discharge pipe, the part connected to the discharge pipe on the discharge nozzle is in a trapezoidal structure, and the part away from the discharge pipe is in a rectangular structure.
[0011] Further, the spring for pushing the swing rod is sleeved on the incomplete guide ring and is compressed and clamped between the asphalt bucket and the swing rod.
[0012] Furthermore, a tightening bolt is installed at the top of the swing arm in the form of a threaded screw. Under specified operating conditions, the head of the tightening bolt is screwed and tightened onto the incomplete guide ring.
[0013] The road construction crack sealing device provided by this utility model has the following beneficial effects:
[0014] 1. When the scraper moves with the crack filling device, it can also scrape the asphalt accumulated on the crack and fill it into the crack, thus completing the filling and repair of the crack. Compared with the existing technology, this can save the trouble of manually using external tools to scrape and fill the crack, and is convenient to operate.
[0015] Second, the swing arm's swing installation method, combined with the pushing effect of the spring on the incomplete guide ring, allows the swing arm to swing up and down according to the change of the lifting angle of the grouting device, and keeps the scraper pressed against the crack at all times. This makes the scraper's leveling and filling function compatible with the change of the lifting angle of the grouting device, resulting in better practicality.
[0016] Third, tightening the bolts can position the swing arm and scraper in an upward tilted state, separating them from the road surface. This can prevent the scraper from being constantly pressed against the road surface when the crack sealing device is moved on the road without crack sealing operations, thus avoiding unnecessary wear and tear. This helps to extend the service life of the scraper to a certain extent. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.
[0018] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.
[0019] In the attached diagram:
[0020] Figure 1 A schematic diagram of the overall structure of this utility model is shown;
[0021] Figure 2 This diagram shows the overall bottom side view of the present invention;
[0022] Figure 3 A schematic diagram of the swing arm structure in this utility model is shown;
[0023] Figure 4 This utility model illustrates Figure 1 Enlarged structural diagram of section A;
[0024] Figure 5 A schematic diagram of the swing arm in the upward swing state of this utility model is shown.
[0025] List of reference numerals in the attached diagram:
[0026] 1. Asphalt hopper; 101. Support leg; 102. Discharge pipe; 1021. Discharge nozzle; 103. U-shaped handle frame; 104. Sealing cover plate; 105. Incomplete guide ring;
[0027] 2. Rollers;
[0028] 3. Swing rod; 301. Scraper; 302. Tightening bolt. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this 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, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] Please refer to Figures 1 to 5 Example 1:
[0031] This embodiment proposes a crack sealing device for road construction, including an asphalt bucket 1, with an incomplete guide ring 105 welded to the bottom side of the outer periphery of the asphalt bucket 1.
[0032] A swing arm 3 is rotatably installed on the bottom side of the outer periphery of the asphalt material bucket 1. The top part of the swing arm 3 is slidably engaged with the incomplete guide ring 105 by means of spring pushing. The pivot point of the swing arm 3 coincides with the center of the incomplete guide ring 105. A scraper 301 is fixedly inserted into the tail part of the swing arm 3. When in use, the scraper 301 comes into contact with the cracks on the road and moves along the cracks, scraping and pushing the molten asphalt that is placed on the cracks to fill the cracks into the cracks.
[0033] Preferably, the spring that pushes the swing arm 3 is fitted onto the incomplete guide ring 105 and is compressed and clamped between the asphalt bucket 1 and the swing arm 3.
[0034] Preferably, the top part of the rocker arm 3 is fitted with a tightening bolt 302 by screwing it in. Under the specified operating conditions, the head of the tightening bolt 302 is screwed and tightened onto the incomplete guide ring 105.
[0035] Implementation 2: This embodiment is based on Implementation 1, but with the following additions:
[0036] Two support legs 101 are symmetrically welded to the bottom of the outer periphery of the asphalt material bucket 1, and two rollers 2 are symmetrically mounted on the bottom of the two support legs 101; a U-shaped handle frame 103 is welded to the top of the outer periphery of the asphalt material bucket 1; a conical material hood is welded to the bottom opening of the asphalt material bucket 1, and a discharge pipe 102 with a valve is welded to the bottom of the conical material hood.
[0037] Preferably, a discharge nozzle 1021 is welded to the bottom end of the discharge pipe 102. The part of the discharge nozzle 1021 that is connected to the discharge pipe 102 has a trapezoidal structure, and the part of it that is away from the discharge pipe 102 has a rectangular structure.
[0038] Preferably, a sealing cover plate 104 is rotatably installed on the top opening of the asphalt material bucket 1.
[0039] The following section provides a detailed explanation of the specific details, implementation steps, functions and interrelationships of the above features, and their roles in achieving this technical solution:
[0040] The asphalt hopper 1 is used to hold molten crack-sealing asphalt. Before use, the crack-sealing device is lifted by the U-shaped handle frame 103 and pulled to an inclined position, in which the discharge nozzle 1021 is close to the road surface. During use, the crack-sealing device is driven by pulling the U-shaped handle frame 103, causing the device to move along the cracks on the road surface and opening the valve on the discharge pipe 102. After the valve is opened, the asphalt inside the asphalt hopper 1 is discharged sequentially through the discharge pipe 102 and the discharge nozzle 1021. The discharged asphalt moves and is discharged onto the cracks in the road surface following the movement of the crack-sealing device. During this process, the swing rod 3 swings downward under the push of the spring on the incomplete guide ring 105 and presses the scraper 301 against the crack for reference. Figure 1 and Figure 2 In this way, when the scraper 301 moves with the crack filling device, it can also scrape the asphalt accumulated on the crack and fill it into the crack, thus completing the filling and repair of the crack. Compared with the existing technology, this can save the trouble of manually using external tools to scrape and fill the crack, and is convenient to operate and use.
[0041] When workers of different heights lift the crack sealing device, the lifting angle of the device varies. When the lifting angle decreases, the device tilts downwards, and the swing arm 3 and scraper 301 follow the downward tilt of the device upwards, creating a gap between the scraper 301 and the road crack. At this time, the swing arm 3 can swing downwards under the push of the spring on the incomplete guide ring 105, pressing the scraper 301 against the crack and eliminating the gap. When the lifting angle increases, the device tilts upwards, and the swing arm 3 and scraper 301 follow the upward tilt of the device... When tilted downwards, the scraper 301 and the swing arm 3 are pushed upwards by the road surface, which prevents the swing arm 3 and the scraper 301 from being stationary and limiting the upward tilt adjustment of the crack sealing device. This swing installation method of the swing arm 3, together with the pushing effect of the spring on the incomplete guide ring 105, allows the swing arm 3 to swing up and down according to the change of the lifting angle of the crack sealing device, and keeps the scraper 301 pressed against the crack. This makes the scraping and filling function of the scraper 301 compatible with the change of the lifting angle of the crack sealing device, which is more practical.
[0042] Tightening bolt 302 can position the swing arm 3 and scraper 301 in an upward-tilted state, separating them from the road surface. Figure 5 This avoids unnecessary wear caused by the scraper 301 being constantly pressed against the road surface when the crack sealing device is moved on the road without crack sealing operations, which helps to extend the service life of the scraper 301 to a certain extent.
[0043] It is worth noting that when the grouting is in use, the tightening bolt 302 is in the state of loosening the swing arm 3.
[0044] Working principle: The asphalt hopper 1 is used to hold molten crack-sealing asphalt. Before use, the crack-sealing device is lifted by the U-shaped handle frame 103 and pulled to an inclined position. In this position, the discharge nozzle 1021 is close to the road surface. During use, the crack-sealing device is driven by pulling the U-shaped handle frame 103, causing the device to move along the cracks on the road surface and opening the valve on the discharge pipe 102. After the valve is opened, the asphalt inside the asphalt hopper 1 is discharged sequentially through the discharge pipe 102 and the discharge nozzle 1021. The discharged asphalt moves and is discharged onto the cracks in the road surface following the movement of the crack-sealing device. During this process, the swing rod 3 swings downward under the push of the spring on the incomplete guide ring 105, and presses the scraper 301 against the crack for reference. Figure 1 and Figure 2 In this way, when the scraper 301 moves with the crack filling device, it can also scrape the asphalt that has accumulated on the crack and fill it into the crack, thus completing the filling and repair of the crack.
[0045] The following points should be noted in this article:
[0046] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.
[0047] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.
[0048] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A crack sealing device for road construction, comprising an asphalt hopper (1), wherein an incomplete guide ring (105) is welded to the bottom side of the outer periphery of the asphalt hopper (1). Its features are, A swing arm (3) is rotatably installed on the bottom side of the outer periphery of the asphalt bucket (1). The top part of the swing arm (3) is slidably engaged with the incomplete guide ring (105) by means of spring pushing. The pivot point of the swing arm (3) coincides with the center of the incomplete guide ring (105). A scraper (301) is fixedly inserted on the tail end of the swing arm (3). When in use, the scraper (301) comes into contact with the cracks on the road and moves along the cracks, scraping and pushing the molten asphalt that is placed on the cracks to fill the cracks into the cracks.
2. The road construction crack sealing device according to claim 1, characterized in that, Two support legs (101) are symmetrically welded to the bottom side of the outer periphery of the asphalt bucket (1), and two rollers (2) are symmetrically installed at the bottom end of the two support legs (101).
3. A crack sealing device for road construction according to claim 1, characterized in that, The top part of the outer periphery of the asphalt bucket (1) is welded with a U-shaped handle frame (103).
4. A crack sealing device for road construction according to claim 1, characterized in that, The bottom opening of the asphalt hopper (1) is welded with a conical aggregate cover, and the bottom end of the conical aggregate cover is welded with a discharge pipe (102) with a valve.
5. A crack sealing device for road construction according to claim 4, characterized in that, The bottom end of the feed pipe (102) is welded with a discharge nozzle (1021). The part of the discharge nozzle (1021) connected to the feed pipe (102) is trapezoidal, and the part of it away from the feed pipe (102) is rectangular.
6. A crack sealing device for road construction according to claim 1, characterized in that, The spring that pushes the swing arm (3) is fitted onto the incomplete guide ring (105) and compressed and clamped between the asphalt bucket (1) and the swing arm (3).
7. A crack sealing device for road construction according to claim 1, characterized in that, The top part of the swing arm (3) is fitted with a tightening bolt (302) in the form of a threaded screw. Under the specified operating conditions, the head end of the tightening bolt (302) is screwed and tightened onto the incomplete guide ring (105).