A road crack repairing device
By designing the asphalt paving box as a combination of a fixed half-frame and a movable half-frame with adjustable width, the problem of the existing device's inability to adjust the width is solved, thus improving the repair effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANSHAN ARCHITECTURAL DESIGN & RES INST
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-28
AI Technical Summary
Existing asphalt pavement crack repair devices cannot adjust the crack width according to the crack width, resulting in poor repair results.
A road crack repair device was designed, which splits a rectangular asphalt paving box into a fixed half-frame and a movable half-frame. The width of the paving box can be adjusted by a combination of a locking sleeve and a movable rod. A plug and a spring-loaded component are used to ensure a reliable connection between the fixed half-frame and the movable half-frame.
It enables width adjustment based on the actual size of cracks in asphalt pavement, improving repair effectiveness and applicability.
Smart Images

Figure CN224565015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal road construction technology, and in particular to a road crack repair device. Background Technology
[0002] Cracks in asphalt pavements are a common problem during the use of asphalt roads. The main forms of asphalt pavement cracks include transverse cracks, longitudinal cracks, network cracks, and reflective cracks. Existing crack repair measures involve construction and maintenance personnel cleaning the cracked area and then pouring the prepared repair asphalt into an asphalt paving box placed on top of the crack. The maintenance personnel then push the paving box over the crack to fill it with asphalt. However, the width of the rectangular asphalt paving box is fixed and cannot be adjusted according to the width of the crack. To solve this problem, a new type of road crack repair device is needed. Utility Model Content
[0003] The purpose of this invention is to provide a road crack repair device to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a road crack repair device, comprising a fixed half-frame, a pushing part for moving the fixed half-frame is provided on the side of the fixed half-frame, a movable half-frame is inserted and connected to the side of the fixed half-frame, an adjusting component is provided at the intersection of the fixed half-frame and the movable half-frame, the adjusting component includes a locking sleeve, the bottom end of the locking sleeve is sequentially inserted and connected to the top of the movable half-frame and the top of the fixed half-frame, a movable rod is inserted and connected to the inner cavity of the locking sleeve, inserts are symmetrically inserted and connected to the outer side of the movable rod, the side of the inserts is inserted and connected to the intersection of the fixed half-frame and the locking sleeve, and a spring-loaded part is provided on the outer side of the movable rod.
[0005] Preferably, the rebound part includes a limiting ring, a compression spring, and a fixing ring. The limiting ring is disposed at the top of the compression spring, and the fixing ring is disposed at the bottom of the compression spring. The limiting ring, the compression spring, and the fixing ring are all disposed in the inner cavity of the locking sleeve.
[0006] Preferably, the outer side of the fixing ring is fixedly connected to the inner wall of the locking sleeve.
[0007] Preferably, the outer side of the movable rod is symmetrically provided with placement slots for inserting the plug, the top of the fixed half frame is provided with multiple fixing slots for locking the sleeve, the inner wall of the fixing slot is provided with a limiting ring groove for locking the plug, and the top of the movable half frame is provided with a fixing hole for locking the sleeve.
[0008] Preferably, a baffle is hinged to the side of the fixed half-frame, and a handle is fixedly connected to the front of the baffle.
[0009] Preferably, the pushing part includes a connecting block, and a connecting bend is provided on the side of the connecting block. A handrail is fixedly connected to the end of the connecting bend away from the connecting block.
[0010] The technical effects and advantages of this utility model are as follows:
[0011] This invention disassembles the overall rectangular annular asphalt paving box into a combination of a fixed half-frame and a movable half-frame. A locking sleeve is inserted at the intersection of the fixed and movable half-frames, and the locking sleeve and the fixed half-frame are fixed by inserts on both sides of the movable rod inside the locking sleeve. This makes the width of the paving box adjustable, allowing users to adjust the crack filling width according to the actual size of the asphalt pavement cracks. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a cross-sectional view of the adjusting component of this utility model.
[0014] Figure 3 This is a schematic diagram of the movable half-frame of this utility model.
[0015] In the diagram: 1. Fixed half-frame; 101. Fixed groove; 102. Limiting ring groove; 2. Movable half-frame; 201. Fixed hole; 3. Connecting block; 4. Connecting elbow; 5. Handrail; 6. Baffle; 601. Handle; 7. Locking sleeve; 8. Movable rod; 801. Limiting ring; 802. Compression spring; 803. Fixed ring; 9. Insertion block; 10. Placement groove. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0017] This utility model provides, for example Figure 1-3 The road crack repair device shown includes a fixed half-frame 1, and a pushing part for moving the fixed half-frame 1 is provided on the side of the fixed half-frame 1.
[0018] It should be noted that the fixed half-frame 1 is connected to the side of the movable half-frame 2. Both the fixed half-frame 1 and the movable half-frame 2 are made of cast iron. The movable half-frame 2 has rectangular slots symmetrically opened on the side for the fixed half-frame 1 to pass through.
[0019] Specifically, the pushing part includes a connecting block 3, a connecting elbow 4 is provided on the side of the connecting block 3, and a handrail 5 is fixedly connected to the end of the connecting elbow 4 away from the connecting block 3;
[0020] It should be noted that the connecting block 3 and the side of the fixed half frame 1 are welded together. The end of the connecting elbow 4 is provided with a through groove. The top of both the connecting block 3 and the connecting elbow 4 is provided with threaded holes. The connecting elbow 4 is inserted into the side of the connecting block 3, and the connecting block 3 and the connecting elbow 4 are fixed by bolts. The top of the handrail 5 is provided with a through hole for maintenance personnel to hold with both hands.
[0021] An adjustment component is provided at the intersection of the fixed half-frame 1 and the movable half-frame 2;
[0022] The adjusting component includes a locking sleeve 7. The bottom end of the locking sleeve 7 is sequentially inserted and connected to the top of the movable half frame 2 and the top of the fixed half frame 1. The inner cavity of the locking sleeve 7 is inserted and connected to a movable rod 8. The outer side of the movable rod 8 is symmetrically inserted and connected to a plug 9. The side of the plug 9 is inserted and connected to the intersection of the fixed half frame 1 and the locking sleeve 7.
[0023] It should be noted that the top of the movable half-frame 2 is provided with a fixing hole 201 for the locking sleeve 7 to pass through, and the top of the fixed half-frame 1 is provided with a plurality of circular fixing grooves 101 for the locking sleeve 7 to pass through. The inner wall of the fixing groove 101 is provided with a limiting ring groove 102 for locking the insert block 9. The fixing hole 201 is connected to the fixing groove 101, so that the user can easily insert the locking sleeve 7 from one fixing groove 101 into another fixing groove 101.
[0024] Specifically, the outer side of the movable rod 8 is symmetrically provided with placement grooves 10 for inserting the plug 9. The bottom of the placement groove 10 is curved to facilitate the movement of the plug 9 in the placement groove 10. The top inner wall of the limiting ring groove 102 is provided with an inclined arc surface to facilitate the user to insert and remove the locking sleeve 7, thereby squeezing the plug 9 in the limiting ring groove 102 into the placement groove 10, and the plug 9 is not completely inserted into the placement groove 10. The inner wall of the locking sleeve 7 is symmetrically provided with through holes for inserting the plug 9, so that the placement groove 10 and the limiting ring groove 102 are interconnected.
[0025] A spring-loaded part is provided on the outer side of the movable lever 8;
[0026] Specifically, the rebound part includes a limiting ring 801, a compression spring 802, and a fixing ring 803. The limiting ring 801 is disposed at the top of the compression spring 802, and the fixing ring 803 is disposed at the bottom of the compression spring 802. The limiting ring 801, the compression spring 802, and the fixing ring 803 are all disposed in the inner cavity of the locking sleeve 7, and the outer side of the fixing ring 803 is fixedly connected to the inner wall of the locking sleeve 7.
[0027] It should be noted that the limiting ring 801 is a columnar structure, with the cross-sectional diameter of its top section being smaller than that of its bottom section. The cross-sectional diameter of the top inner cavity of the locking sleeve 7 is larger than the diameter of the top of the limiting ring 801 and smaller than the cross-sectional diameter of the bottom of the limiting ring 801, so that the limiting ring 801 is restricted within the inner cavity of the locking sleeve 7.
[0028] A baffle 6 is hinged to the side of the fixed half-frame 1, and a handle 601 is fixedly connected to the front of the baffle 6. When the repair asphalt is heated to a high temperature, it will release a variety of hydrocarbon gases, especially polycyclic aromatic hydrocarbons. These gases may include benzo[a]pyrene and benz[a]anthracene. The baffle 6 is used to reduce the impact of asphalt gas emission on the handrail 5 for pushing repair personnel.
[0029] In actual use, the user presses the movable rod 8, inserts the locking sleeve 7 into the fixing groove 101 at the top of the fixed half-frame 1 through the fixing hole 201, and releases the movable rod 8. The compression spring 802, squeezed by the limiting ring 801, moves the movable rod 8 upward, thereby pressing the insert block 9 against the bottom inner wall of the placement groove 10, causing the insert block 9 to enter the limiting ring groove 102, thus locking the positions of the fixed half-frame 1 and the movable half-frame 2. When the width needs to be adjusted according to the crack width, the user presses the movable rod 8, moves the locking sleeve 7 upward, and causes the insert block 9 to retract into the placement groove 10, making it easy for the user to pull the movable half-frame 2 and insert the locking sleeve 7 into the fixing groove 101 at the required position. This allows the repair width of the asphalt paving box to be adjusted, making it easy for the user to adjust the crack filling width according to the actual size of the asphalt pavement crack.
[0030] 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 crack repair device, comprising a fixed half-frame (1), characterized in that, The fixed half-frame (1) has a pusher for moving the fixed half-frame (1) on its side. The fixed half-frame (1) is connected to a movable half-frame (2) through its side. An adjustment member is provided at the intersection of the fixed half-frame (1) and the movable half-frame (2). The adjustment member includes a locking sleeve (7). The bottom end of the locking sleeve (7) is sequentially connected to the top of the movable half-frame (2) and the top of the fixed half-frame (1). A movable rod (8) is connected through its inner cavity. Inserts (9) are symmetrically connected through the outer side of the movable rod (8). The side of the inserts (9) is connected through the intersection of the fixed half-frame (1) and the locking sleeve (7). A spring-loaded part is provided on the outer side of the movable rod (8).
2. The road crack repair device according to claim 1, characterized in that, The springback section includes a limiting ring (801), a compression spring (802), and a fixing ring (803). The limiting ring (801) is located at the top of the compression spring (802), and the fixing ring (803) is located at the bottom of the compression spring (802). The limiting ring (801), the compression spring (802), and the fixing ring (803) are all located in the inner cavity of the locking sleeve (7).
3. A road crack repair device according to claim 2, characterized in that, The outer side of the fixing ring (803) is fixedly connected to the inner wall of the locking sleeve (7).
4. A road crack repair device according to claim 3, characterized in that, The movable rod (8) has symmetrically provided placement slots (10) for inserting the plug (9) on its outer side. The top of the fixed half frame (1) has multiple fixing slots (101) for inserting the locking sleeve (7). The inner wall of the fixing slot (101) has a limiting ring groove (102) for locking the plug (9). The top of the movable half frame (2) has a fixing hole (201) for inserting the locking sleeve (7).
5. A road crack repair device according to claim 4, characterized in that, The fixed half-frame (1) is hinged to a baffle (6) on its side, and a handle (601) is fixedly connected to the front of the baffle (6).
6. A road crack repair device according to claim 1, characterized in that, The pushing part includes a connecting block (3), and a connecting handle (4) is provided on the side of the connecting block (3). A handrail (5) is fixedly connected to the end of the connecting handle (4) away from the connecting block (3).