Joint filling structure for road maintenance
By adding an air extraction component, shovel, hook, and dust collection box to the road maintenance crack filling structure, the problem of incomplete cleaning of impurities in cracks in the existing technology has been solved, improving the quality of crack filling and the service life of the road.
Patent Information
- Application Number
- CN202520534519.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing technologies are not very effective at cleaning impurities in road cracks, especially those deep and in small crevices, which affects the adhesion of the crack sealant to the cracks and leads to a decline in the quality of the crack sealing.
A caulking structure for road maintenance has been designed, which adds an air extraction component, a shovel, a hook, and a dust collection box. The air extraction component generates suction, which, combined with the shovel and hook, removes large debris. The dust collection box picks up small debris and is equipped with a filter component and a sealing cap for easy cleaning and replacement of the filter bag.
It effectively cleans impurities from cracks, ensures good adhesion between the sealant and the cracks, and improves the quality of crack sealing and the service life of the road.
Smart Images

Figure CN223936971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road maintenance crack filling technology, and in particular to a crack filling structure for road maintenance. Background Technology
[0002] In road construction, crack sealing is a common and important task. Before sealing, the effectiveness of cleaning impurities in the cracks directly affects the adhesion between the sealant and the crack, thus affecting the sealing quality and the service life of the road.
[0003] A search revealed a Chinese patent publication number (CN222513101U) disclosing a road crack sealing device for road construction, specifically a device for road crack sealing in road construction. This device includes a box and a trolley. The box is placed on top of the trolley, and grooves are provided on the bottom of both the front and rear side walls. The box is used to hold sealant or other related materials. Through the cooperation of the insert plate and the grooves, the box can be stably placed on the trolley. The design of the telescopic components and telescopic rods gives the device a certain degree of adjustability, allowing it to be adjusted according to different road conditions and construction needs, thus improving the device's adaptability and flexibility. A support frame is installed on the bottom of the platform, and multiple rollers are provided at the bottom of the support frame to facilitate the movement of the trolley. The entire device has a stable structure, is easy to operate, highly adaptable, and convenient to move, greatly improving construction safety.
[0004] The existing technical solutions described above have the following drawbacks. While they offer certain advantages in terms of the connection between the box and the trolley, and height adjustment, they are significantly inadequate in cleaning impurities from cracks. Some existing technologies rely solely on simple manual sweeping or air blowing, which is insufficient to thoroughly remove dust, debris, stones, and other impurities from cracks. For example, manual sweeping is ineffective at cleaning impurities deep within cracks and in small crevices; while simple air blowing causes impurities to become airborne, resulting in poor cleaning and affecting the adhesion of the crack sealant to the crack. Therefore, a road maintenance crack filling structure is proposed to address these issues. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a crack filling structure for road maintenance. By adding an innovative cleaning component, it effectively solves the problem of incomplete cleaning of impurities in cracks and the resulting impact on crack filling quality in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A crack-sealing structure for road maintenance includes a crack-sealing device. A fixing box is connected to the front of the crack-sealing device. An air extraction component is installed inside the fixing box. A hose is connected to the right side of the fixing box. A handle is connected to the rear end of the hose. The handle is telescopic and extendable. A dust collection box is connected to the rear end of the handle. A shovel is connected to the left side of the dust collection box. A hook is connected to the right side of the dust collection box. A filter component for filtering the air entering through the hose is provided inside the fixing box. A sealing cover is installed on the top of the fixing box via a detachable component.
[0008] As a further description of the above technical solution:
[0009] The air extraction assembly includes a motor, which is installed inside the fixed box. The output end of the motor is connected to a fan blade, and an air outlet is provided on the left side of the fixed box.
[0010] As a further description of the above technical solution:
[0011] The air outlet is fitted with a protective mesh.
[0012] As a further description of the above technical solution:
[0013] The telescopic component includes a telescopic tube slidably connected inside the handle. The rear end of the telescopic tube communicates with the interior of the dust collection box. The outside of the handle is secured to the telescopic tube by threaded bolts.
[0014] As a further description of the above technical solution:
[0015] The filter assembly includes a support box, which is disposed inside a fixed box and is secured inside the fixed box by a slot inside the fixed box. A filter bag is connected to the bottom of the support box.
[0016] As a further description of the above technical solution:
[0017] The disassembly component includes connecting plates connected to both sides of the sealing cover. Support plates are connected to both sides of the fixing box. A locking plate that engages with the surface of the connecting plate is slidably connected inside the support plate. A pulling spring is connected to the inner side of the locking plate. The inner side of the pulling spring is connected to the surface of the support plate.
[0018] As a further description of the above technical solution:
[0019] A pull plate is vertically connected to the outer side of the card plate.
[0020] As a further description of the above technical solution:
[0021] A sealing gasket is connected to the bottom of the sealing cap.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the operator first uses a shovel to target large impurities on the surface of the crack and removes them by force, clearing them to the side. Then, a hook is used to reach into the crack and hook out the debris attached to the crack wall. Finally, the suction component inside the fixed box uses the handle and hose to drive the dust collection box to generate a strong suction force to suck up the cleaned impurities in the crack, thus achieving the effect of effectively cleaning the impurities in the crack.
[0024] 2. In this utility model, with the cooperation of the pull plate, the clamping plate, and the pulling spring, the pull plate and the clamping plate move outward inside the support plate, so that the clamping plate moves out of the groove on the surface of the connecting plate, releasing the fixation of the sealing cover. Then, after the filter bag is exposed, the filter bag can be moved out of the fixed box by moving the support box, which facilitates the cleaning of impurities inside, thus solving the problem that impurities are inconvenient to remove and clean after the cracks are cleaned. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a road maintenance joint filling structure proposed in this utility model;
[0026] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;
[0027] Figure 3 This is a cross-sectional structural diagram of a fixing box for a road maintenance joint filling structure proposed in this utility model;
[0028] Figure 4 This is an exploded three-dimensional structural diagram of a disassembly component for a road maintenance joint filling structure proposed in this utility model.
[0029] Legend:
[0030] 1. Crack filling device; 2. Fixing box; 3. Hose; 4. Handle; 5. Dust collection box; 6. Shovel; 7. Hook; 8. Sealing cap; 91. Motor; 92. Fan blade; 93. Air outlet; 10. Protective net; 11. Telescopic tube; 121. Support box; 122. Filter bag; 131. Connecting plate; 132. Support plate; 133. Clamping plate; 134. Pull spring; 14. Pull plate; 15. Sealing gasket. 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 1-3 This utility model provides an embodiment of a road maintenance crack filling structure, including a crack filling device 1. The crack filling device 1 is a known prior art technology, and its specific structure and usage are disclosed in patent publication number CN222513101U. A fixing box 2 is connected to the front of the crack filling device 1. An air extraction assembly is installed inside the fixing box 2, including a motor 91. The motor 91 is installed inside the fixing box 2, and a fan blade 92 is connected to the output end of the motor 91. An air outlet 93 is opened on the left side of the fixing box 2, and a protective net 10 is embedded inside the air outlet 93. After the motor 91 is started, it drives... The fan blades 92 rotate rapidly, drawing air from the inside of the fixed box 2, creating a strong suction force between the handle 4 and the dustbin 5 to suck up impurities. The motor 91 is controlled by a speed controller. A flexible hose 3 is connected to the right side of the fixed box 2, and the handle 4 is connected to the rear end of the hose 3. The handle 4 is telescopic, consisting of a telescopic tube 11 slidably connected inside the handle 4. The rear end of the telescopic tube 11 connects to the inside of the dustbin 5. The outside of the handle 4 is secured to the telescopic tube 11 by threaded bolts. The telescopic tube 11 allows the length of the handle 4 to be adjusted to suit the user's needs. The usable length between the handle 4 and the dustbin 5 has been changed. The rear end of the handle 4 is connected to the dustbin 5, which sucks up impurities. A scraper 6 is connected to the left side of the dustbin 5. The scraper 6 is used to remove large pieces of impurities, hardened dirt, or old grout from the surface and surrounding areas of cracks. A hook 7 is connected to the right side of the dustbin 5. The hook 7 can reach deep into the crack to hook out debris attached to the crack wall, which is especially suitable for narrow or deep cracks. A set of rectangular cleaning brushes (not shown in the picture) can be installed at the bottom of the dustbin 5 for cleaning impurities. The interior of the fixing box 2 is equipped with a way to allow the hose 3 to enter. The air filtration assembly includes a support box 121, which is disposed inside a fixed box 2 and is secured inside the fixed box 2 by a slot inside the fixed box 2. A filter bag 122 is connected to the bottom of the support box 121. The filter bag 122 supported by the support box 121 is placed inside the fixed box 2 and filters the air entering through the hose 3. Impurities are filtered inside the filter bag 122. A sealing cover 8 is installed on the top of the fixed box 2 through a disassembly component. The sealing cover 8 can prevent the support box 121 from falling off the fixed box 2 and can seal the top of the fixed box 2.
[0033] Reference Figure 2-4 The disassembly components include connecting plates 131 connected to both sides of the sealing cover 8, and support plates 132 connected to both sides of the fixing box 2. The inside of the support plate 132 is slidably connected to a locking plate 133 that engages with the surface of the connecting plate 131. A pull spring 134 is connected to the inside of the locking plate 133, and the inside of the pull spring 134 is connected to the surface of the support plate 132. A pull plate 14 is vertically connected to the outside of the locking plate 133. When the user needs to release the seal between the sealing cover 8 and the fixing box 2, the user pulls the locking plate 133 through the pull plate 14 to move the locking plate 133 out of the groove on the connecting plate 131 and pulls the pull spring 134. Then the user can pull the sealing cover 8 upward to move the sealing cover 8 out from the top of the fixing box 2 so that the top of the fixing box 2 can be opened to remove and clean the filter assembly.
[0034] Reference Figure 2-4 A sealing gasket 15 is connected to the bottom of the sealing cover 8. The sealing gasket 15 can increase the sealing between the bottom of the sealing cover 8 and the top of the fixing box 2, so that the sealing cover 8 strengthens the seal on the top of the fixing box 2.
[0035] Working principle: The operator holds the handle 4 and uses the small shovel 6 to scrape away large debris on the surface of the crack, clearing it to the side. Then, the hook 7 is used to reach into the crack and hook out the debris attached to the crack wall. Next, the motor 91 is turned on to drive the fan blade 92 to rotate, generating suction inside the dust collection box 5 through the hose 3, handle 4, and telescopic tube 11. The dust collection box 5 sucks up the cleaned debris, which is then filtered by the filter bag 122 inside the fixed box 2. During the cleaning process, different cleaning tools can be switched according to the amount and type of debris. When there is a lot of dust, the suction of the dust collection box 5 is increased. If there is a lot of stubborn debris, the hook 7 and shovel 6 are used for cleaning. After cleaning the crack debris, the crack filling device 1 is used to fill the crack according to the conventional crack filling process, injecting the filling material evenly into the crack.
[0036] 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. A road maintenance joint filling structure, comprising a joint filling device (1), characterized in that: The front of the grouting device (1) is connected to a fixing box (2). An air extraction component is installed inside the fixing box (2). A hose (3) is connected to the right side of the fixing box (2). A handle (4) is connected to the rear end of the hose (3). The handle (4) is telescopically extended and retracted. A dust collection box (5) is connected to the rear end of the handle (4). A shovel (6) is connected to the left side of the dust collection box (5). A hook (7) is connected to the right side of the dust collection box (5). A filter component for filtering the air entering through the hose (3) is installed inside the fixing box (2). A sealing cover (8) is installed on the top of the fixing box (2) through a disassembly component.
2. The road maintenance joint filling structure according to claim 1, characterized in that: The air extraction assembly includes a motor (91), which is installed inside the fixed box (2). The output end of the motor (91) is connected to a fan blade (92), and an air outlet (93) is provided on the left side of the fixed box (2).
3. The road maintenance joint filling structure according to claim 2, characterized in that: The air outlet (93) is fitted with a protective mesh (10).
4. The road maintenance joint filling structure according to claim 1, characterized in that: The telescopic component includes a telescopic tube (11) that is slidably connected inside the handle (4). The rear end of the telescopic tube (11) is connected to the interior of the dust collection box (5). The outside of the handle (4) is secured to the telescopic tube (11) by a threaded bolt.
5. A road maintenance joint filling structure according to claim 1, characterized in that: The filter assembly includes a support box (121), which is disposed inside the fixed box (2) and is secured inside the fixed box (2) by a slot inside the fixed box (2). A filter bag (122) is connected to the bottom of the support box (121).
6. The road maintenance joint filling structure according to claim 1, characterized in that: The disassembly component includes connecting plates (131) connected to both sides of the sealing cover (8), and support plates (132) connected to both sides of the fixing box (2). The support plate (132) has a sliding connection inside to a locking plate (133) that engages with the surface of the connecting plate (131). The inner side of the locking plate (133) is connected to a pulling spring (134), and the inner side of the pulling spring (134) is connected to the surface of the support plate (132).
7. A road maintenance joint filling structure according to claim 6, characterized in that: A pull plate (14) is vertically connected to the outer side of the card plate (133).
8. A road maintenance joint filling structure according to claim 1, characterized in that: The bottom of the sealing cap (8) is connected to a sealing gasket (15).
Citation Information
Patent Citations
Road crack pouring device for road construction
CN222513101U