Road gap filling and repairing structure
By designing an adjustable movable and locking component for the road crack filling and repair structure, the problem of existing spray gun handles being unable to adapt to different operating habits has been solved, achieving greater user comfort and operational flexibility.
Patent Information
- Application Number
- CN202520613581.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-02
AI Technical Summary
The handles of existing road crack filling spray guns are not adapted to the operating habits of different workers, resulting in discomfort and rapid fatigue.
A road crack filling and repair structure including a movable component and a locking component has been designed. The adjustable handle and friction pad structure allow workers to adjust the handle position according to their personal habits and fix it in close contact with the spray gun body through the rubber friction pad.
It improves the comfort of construction workers, reduces fatigue, and enhances operational flexibility and adaptability.
Smart Images

Figure CN223963806U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of road repair technology, and more specifically to a road crack filling and repair structure. Background Technology
[0002] During the operation of asphalt roads, gaps inevitably form due to reasons such as overloaded vehicles, excessive traffic volume, and natural disasters. If these gaps are not filled and repaired in time, they will continue to expand and eventually lead to road damage. Therefore, it is necessary to use a road crack sealing machine to fill and repair the gaps.
[0003] Most road crack filling machines are equipped with an asphalt hot-melt trailer and an asphalt spray gun. The asphalt is melted by the hot-melt trailer and then sprayed onto the cracks using the spray gun. The spray gun is manually held by the operator and is usually equipped with a handle to assist the operator in holding it. However, most of the existing spray gun handles are fixed and cannot be adjusted. Different users have different operating habits, and the fixed handle cannot adapt to different operators' operating habits. An uncomfortable grip will lead to faster operator fatigue. Therefore, there is an urgent need to design a road crack filling and repair structure to solve the above problems. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a road crack filling and repair structure to solve the problem that the handles on the existing spray guns are mostly fixed and cannot adapt to the operating habits of different workers.
[0005] This utility model provides the following technical solution: a road crack filling and repair structure, including a spray gun body, and also including a movable component and a locking component. The movable component is movably sleeved on the outer wall of the spray gun body, and the locking component is slidably sleeved on the movable component. The locking component can limit the movement of the movable component.
[0006] The movable components include a movable sleeve and a handle. The movable sleeve is movably fitted onto the outer wall of the spray gun body, and the handle is fixedly installed on the outer wall of the movable sleeve. The locking components include a sliding ring and four friction parts. The sliding ring is slidably fitted onto the outer wall of the movable sleeve, and the four friction parts are circumferentially and equidistantly arranged at the bottom of the sliding ring. All four friction parts are connected to the movable sleeve, and the friction parts can contact the spray gun body.
[0007] Furthermore, the friction part includes two ear plates, a pressing rod, and two sliders. The two ear plates are fixedly installed at the bottom of the sliding ring, the pressing rod is rotatably installed between the two ear plates, and the two sliders are fixedly installed at both ends of the pressing rod. The outer wall of the movable sleeve has four vertical holes equidistantly opened, the pressing rod is slidably installed in the vertical holes, and the inner walls at both ends of the vertical holes have inclined grooves, and the sliders are slidably installed in the inclined grooves.
[0008] Furthermore, the friction part also includes a rubber friction pad, which is disposed at the bottom of the extrusion rod.
[0009] Furthermore, the locking assembly also includes a threaded sleeve, the outer wall of which is threaded, and the threaded sleeve is slidably fitted onto the outer wall of the movable sleeve via the thread, and the threaded sleeve is rotatably mounted on the top of the sliding ring.
[0010] Furthermore, the locking assembly also includes a T-ring, which is fixedly installed at the bottom of the threaded sleeve, and a T-groove is provided at the top of the sliding ring, in which the T-ring is rotatably installed.
[0011] Furthermore, the outer circumference of the threaded sleeve is provided with several rubber anti-slip strips at equal intervals.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] This invention, through its movable and locking components, allows for easy adjustment of the handle position during use. If the handle position is uncomfortable, the screw sleeve can be rotated counterclockwise to slide the four extrusion rods upward, causing the rubber friction pad to detach from the spray gun body, thus unlocking the movable sleeve. At this point, the positions of the movable sleeve and handle can be adjusted according to user habits. After adjustment, rotating the screw sleeve clockwise causes the four extrusion rods to slide downward, bringing the rubber friction pad into close contact with the spray gun body, thereby fixing the positions of the movable sleeve and handle. This allows construction personnel to adjust the handle position according to their own usage habits, improving user comfort. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the active component structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the locking component structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the T-shaped ring structure of this utility model.
[0018] The attached figures are labeled as follows: 1. Spray gun body; 2. Moving component; 201. Moving sleeve; 202. Handle; 203. Vertical hole; 204. Inclined groove; 205. Thread; 3. Locking component; 301. Screw sleeve; 302. Sliding ring; 303. Ear plate; 304. Extrusion rod; 305. Slider; 306. Rubber friction pad; 307. Rubber anti-slip strip; 308. T-ring; 309. T-slot. Detailed Implementation
[0019] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.
[0020] Figures 1-4 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 ~Appendix Figure 4 The present invention will be further described below.
[0021] A road crack filling and repair structure includes a spray gun body 1, a movable component 2, and a locking component 3. The movable component 2 is movably sleeved on the outer wall of the spray gun body 1, and the locking component 3 is slidably sleeved on the movable component 2. The locking component 3 can limit the movable component 2.
[0022] The movable component 2 includes a movable sleeve 201 and a handle 202. The movable sleeve 201 is movably fitted onto the outer wall of the spray gun body 1, and the handle 202 is fixedly installed on the outer wall of the movable sleeve 201. The locking component 3 includes a sliding ring 302 and four friction parts. The sliding ring 302 is slidably fitted onto the outer wall of the movable sleeve 201, and the four friction parts are circumferentially equidistantly arranged at the bottom of the sliding ring 302. All four friction parts are connected to the movable sleeve 201, and the friction parts can contact the spray gun body 1.
[0023] Specifically, the friction part includes two ear plates 303, a pressing rod 304, and two sliders 305. The two ear plates 303 are fixedly installed at the bottom of the sliding ring 302. The pressing rod 304 is rotatably installed between the two ear plates 303. The two sliders 305 are respectively fixedly installed at both ends of the pressing rod 304. The outer wall of the movable sleeve 201 has four vertical holes 203 equidistantly opened around its circumference. The pressing rod 304 is slidably installed in the vertical holes 203. The inner walls at both ends of the vertical holes 203 are provided with inclined grooves 204. The sliders 305 are slidably installed in the inclined grooves 204.
[0024] In this embodiment, when the extrusion rod 304 slides, it will drive the slider 305 to slide in the inclined groove 204. The slider 305 sliding in the inclined groove 204 will guide the extrusion rod 304. When the extrusion rod 304 slides upward, the slider 305 will make the extrusion rod 304 move away from the spray gun body 1. When the extrusion rod 304 slides downward, the slider 305 will make the extrusion rod 304 move closer to the spray gun body 1.
[0025] Specifically, the friction part also includes a rubber friction pad 306, which is disposed at the bottom of the extrusion rod 304.
[0026] In this embodiment, when the extrusion rod 304 pushes the rubber friction pad 306 into close contact with the spray gun body 1, the friction between the rubber friction pad 306 and the spray gun body 1 can fix the movable sleeve 201 and the handle 202.
[0027] Specifically, the locking assembly 3 also includes a screw sleeve 301. The outer wall of the movable sleeve 201 is provided with a thread 205. The screw sleeve 301 is slidably sleeved on the outer wall of the movable sleeve 201 through the thread 205. The screw sleeve 301 is rotatably mounted on the top of the sliding ring 302.
[0028] In this embodiment, rotating the screw sleeve 301 counterclockwise will cause the sliding ring 302 to slide upward, and rotating the screw sleeve 301 clockwise will cause the sliding ring 302 to slide downward.
[0029] Specifically, the locking assembly 3 also includes a T-ring 308, which is fixedly installed at the bottom of the threaded sleeve 301. A T-groove 309 is provided on the top of the sliding ring 302, and the T-ring 308 is rotatably installed in the T-groove 309.
[0030] In this embodiment, the T-ring 308 and T-groove 309 are provided so that the threaded sleeve 301 can drive the sliding ring 302 to slide while rotating.
[0031] Specifically, the outer circumference of the threaded sleeve 301 is provided with several rubber anti-slip strips 307 at equal intervals.
[0032] In this embodiment, the rubber anti-slip strip 307 increases the friction between the worker's hand and the screw sleeve 301 when the screw sleeve 301 is rotated, making it easier for the worker to rotate the screw sleeve 301.
[0033] Working Principle: During use, if the grip 202 feels uncomfortable, first rotate the threaded sleeve 301 counterclockwise. When rotated counterclockwise, the threaded sleeve 301 slides upwards under the influence of the thread 205, which in turn causes the sliding ring 302 to slide upwards. The upward movement of the sliding ring 302 causes the ear plate 303 to slide upwards, which in turn causes the extrusion rod 304 to slide upwards. As the extrusion rod 304 slides upwards, it causes the slider 305 to slide within the inclined groove 204. The slider 305 guides the extrusion rod 304, causing it to slide upwards and move away from the spray gun body 1, thus disengaging the rubber friction pad 306 from the spray gun body 1. At this point, the movable sleeve 201 is unlocked, allowing adjustment of the movable sleeve 201 and grip 202 according to operating habits. After adjustment to a suitable position, the... Rotating the screw sleeve 301 clockwise causes it to slide downwards under the influence of the thread 205, which in turn pushes the sliding ring 302 downwards. The downward sliding of the sliding ring 302 causes the ear plate 303 to slide downwards, which in turn causes the extrusion rod 304 to slide downwards. As the extrusion rod 304 slides downwards, it causes the slider 305 to slide within the inclined groove 204. The slider 305 sliding within the inclined groove 204 guides the extrusion rod 304, causing it to slide downwards and approach the spray gun body 1. Ultimately, this causes the rubber friction pad 306 to come into contact with the spray gun body 1. Continuing to rotate the screw sleeve 301 ensures that the rubber friction pad 306 on the extrusion rod 304 comes into close contact with the spray gun body 1. The friction between the rubber friction pad 306 and the spray gun body 1 then secures the movable sleeve 201 and the handle 202.
[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. A road crack filling and repair structure, comprising a spray gun body (1), characterized in that: It also includes a movable component (2) and a locking component (3). The movable component (2) is movably sleeved on the outer wall of the spray gun body (1), and the locking component (3) is slidably sleeved on the movable component (2). The locking component (3) can limit the movable component (2). The movable component (2) includes a movable sleeve (201) and a handle (202). The movable sleeve (201) is movably fitted onto the outer wall of the spray gun body (1). The handle (202) is fixedly installed on the outer wall of the movable sleeve (201). The locking component (3) includes a sliding ring (302) and four friction parts. The sliding ring (302) is slidably fitted onto the outer wall of the movable sleeve (201). The four friction parts are circumferentially equidistantly arranged at the bottom of the sliding ring (302). All four friction parts are connected to the movable sleeve (201) and can contact the spray gun body (1).
2. The road crack filling and repair structure according to claim 1, characterized in that: The friction part includes two ear plates (303), a pressing rod (304), and two sliders (305). The two ear plates (303) are fixedly installed at the bottom of the sliding ring (302). The pressing rod (304) is rotatably installed between the two ear plates (303). The two sliders (305) are fixedly installed at both ends of the pressing rod (304). The outer wall of the movable sleeve (201) is provided with four vertical holes (203) at equal intervals. The pressing rod (304) is slidably installed in the vertical holes (203). The inner walls at both ends of the vertical holes (203) are provided with inclined grooves (204). The sliders (305) are slidably installed in the inclined grooves (204).
3. The road crack filling and repair structure according to claim 2, characterized in that: The friction part also includes a rubber friction pad (306), which is disposed at the bottom of the extrusion rod (304).
4. The road crack filling and repair structure according to claim 1, characterized in that: The locking assembly (3) also includes a threaded sleeve (301). The outer wall of the movable sleeve (201) is provided with a thread (205). The threaded sleeve (301) is slidably sleeved on the outer wall of the movable sleeve (201) through the thread (205). The threaded sleeve (301) is rotatably mounted on the top of the sliding ring (302).
5. A road crack filling and repair structure according to claim 4, characterized in that: The locking assembly (3) also includes a T-ring (308), which is fixedly installed at the bottom of the threaded sleeve (301). A T-groove (309) is provided on the top of the sliding ring (302), and the T-ring (308) is rotatably installed in the T-groove (309).
6. The road crack filling and repair structure according to claim 4, characterized in that: The outer circumference of the threaded sleeve (301) is provided with several rubber anti-slip strips (307) at equal intervals.