Road crack filling device

Abstract

The utility model is applicable to the field of road crack repairing equipment, and provides a road crack filling device which comprises a vehicle body, asphalt treatment equipment is mounted on the vehicle body, and a crack filling gun is mounted on the asphalt treatment equipment through a material conveying hose; a fixing frame is fixedly connected to the top of the vehicle body, a rotating frame is rotationally connected to the fixing frame, a winder is fixedly connected to the rotating frame, a pull wire capable of being elastically pulled out is wound on the winder, the end, away from the winder, of the pull wire is fixedly connected to the caulking gun, and a discharging trowelling disc is installed at the end, away from the conveying hose, of the caulking gun through a universal joint. Therefore, according to the device, the road crack can be filled by operating the joint filling gun, the repairing vehicle does not need to accurately run along the crack, and the operation difficulty of driving the vehicle is reduced; and meanwhile, the pull wire can lift the caulking gun, so that the weight of the caulking gun is reduced, great body burden cannot be brought to workers even if the caulking gun is used for a long time, and the caulking gun is safe and convenient to use.

Description

Technical Field

[0001] The utility model is applicable to the field of road crack repair equipment and provides a road crack filling device. Background Art

[0002] The occurrence of road cracks is a common phenomenon, typically caused by a combination of factors. Firstly, climate change is a significant contributor to road cracks, especially when experiencing frequent temperature swings and precipitation. Thermal expansion and contraction causes the pavement material to repeatedly expand and contract, leading to cracking. Secondly, the repeated effects of traffic loads can also damage the pavement, especially with frequent heavy vehicle traffic. Insufficient bearing capacity of the roadbed can further exacerbate the appearance of cracks. Furthermore, aging pavement materials, substandard construction quality, and poor drainage systems can also contribute to the formation of cracks. Therefore, timely repair of road cracks is crucial to ensure road safety and longevity.

[0003] Currently, common methods for repairing road cracks include hot melt, cold patching, and grouting. Hot melt repairs typically involve heating asphalt to a certain temperature and then pouring it into the crack, while cold patching uses pre-formulated pavement repair materials. In recent years, specialized road crack repair vehicles have become increasingly common. These vehicles are typically equipped with heating devices and grouting systems, automatically heating the asphalt during the repair process and then manually pouring it into the cracks.

[0004] Despite technological advancements, existing road crack repair devices remain challenging to operate. The repair vehicle must be precisely controlled to follow the crack path, requiring a high level of operator skill to ensure effective repairs. Furthermore, while some handheld repair devices are easy to operate, they are heavy and can put a significant strain on operators during prolonged use, leading to fatigue and potential safety hazards. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the present invention is to provide a road crack filling device, which aims to solve the problems raised in the background technology. The device includes a vehicle body, an asphalt processing device is installed on the vehicle body, and a caulking gun is installed on the asphalt processing device through a feeding hose;

[0006] The top of the vehicle body is fixedly connected to a fixed frame, the fixed frame is rotatably connected to a rotating frame, the rotating frame is fixedly connected to a wire reel, the upper disk of the wire reel is provided with a traction wire that can be pulled out elastically, the end of the traction wire away from the wire reel is fixedly connected to the caulking gun, and the end of the caulking gun away from the material delivery hose is installed with a discharge smoothing disk through a universal joint.

[0007] Furthermore, the asphalt processing equipment is internally provided with an asphalt storage tank, a heating system, a conveying system and a control system.

[0008] Furthermore, the caulking gun includes a gun body connected to a feeding hose, a flow channel is provided inside the gun body, a valve body is provided on the gun body, a handle is fixedly connected to the gun body, a feeding button is provided on the handle, and the feeding button and the valve body are electrically connected to the control system.

[0009] Furthermore, the rotating frame is an "L"-shaped structure, one end of the "L"-shaped structure is rotatably connected to the fixed frame; the other end is perpendicular to the fixed frame, and the reel is upside down at the bottom.

[0010] Furthermore, the interior of the cable reel is rotatably connected to a cable reel, the traction line is wound on the cable reel, and a clockwork spring is fixedly connected between the cable reel and the cable reel.

[0011] Furthermore, a side handle is fixedly connected to one side of the caulking gun.

[0012] Furthermore, a heating layer is provided inside the caulking gun, and a heat insulating layer is provided between the gun body and the heating layer.

[0013] Furthermore, the discharge smoothing plate includes a universal ball head mounted inside the universal joint; a flow channel cavity is provided in the universal ball head and the discharge smoothing plate, and a plurality of discharge ports are provided at one end of the discharge smoothing plate away from the universal ball head.

[0014] Furthermore, an expansion channel is provided at one end of the universal ball head away from the discharge smoothing plate.

[0015] The utility model fills road cracks by operating a caulking gun, eliminating the need for the repair vehicle to precisely follow the crack path, reducing the difficulty of operating the vehicle to fill the crack. Furthermore, a traction line can consistently pull the caulking gun upward, reducing its weight. Even after prolonged use, the caulking gun does not impose significant physical strain on the operator, making it both safe and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the device structure;

[0017] Figure 2 This is a schematic diagram of the caulking gun structure;

[0018] Figure 3 This is a cross-sectional view of a caulking gun;

[0019] Figure 4 This is a cross-sectional view when the discharging and leveling disc rotates to the extreme angle;

[0020] Figure 5This is a cross-sectional view of the reel and rotating frame structure;

[0021] In the figure: 1-vehicle body; 2-asphalt processing equipment; 21-feeding hose; 31-fixed frame; 32-rotating frame; 4-reel; 41-traction line; 42-reel; 43-spring; 5-caulking gun; 51-gun body; 510-flow channel; 511-heating layer; 512-insulating layer; 52-handle; 521-feeding button; 53-fixed seat; 54-side handle; 55-universal joint; 56-discharge smoothing plate; 560-flow channel cavity; 561-universal ball head; 562-discharge port; 563-expanded flow channel; 57-valve body. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] It should be noted that, in the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0024] At the same time, in the description of this utility model, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] See also Figure 1-5The present utility model provides a road crack filling device comprising a vehicle body 1, which can be operated by a worker. Specifically, the vehicle body 1 is provided with a cab, which houses a driving device, a control panel, and a seat (not shown), allowing for easy operation by the worker. The vehicle is equipped with a steering system and a real-time monitoring display, providing feedback on driving information and onboard equipment, ensuring safety and convenience for the driver during operation and effectively ensuring smooth road crack filling.

[0027] Asphalt processing equipment 2 is installed on the vehicle body 1. The asphalt processing equipment 2 is internally provided with structures and equipment such as an asphalt storage tank, a heating system, a conveying system, and a control system. The heating system can be used to heat the asphalt to ensure that the asphalt maintains good fluidity when used for filling cracks. The heating system usually adopts electric heating or fuel heating. The asphalt storage tank is used to store molten asphalt, and the outer shell is made of insulating material to reduce heat loss. The conveying system includes structures such as pumps and pipelines, which are responsible for conveying the heated asphalt to the crack filling equipment; the asphalt processing equipment 2 is equipped with a caulking gun 5 through a feed hose 21; the conveying system is connected to the feed hose 21 and can convey the molten asphalt to the caulking gun 5, and the staff then use the caulking gun 5 to fill the road cracks. The control system includes temperature control and pressure control, which are used to monitor and adjust the temperature and flow of the asphalt, thereby ensuring the smooth progress of the entire filling process. The above equipment is commonly used in road crack filling devices. The working principle and connection of the equipment are all existing technologies and will not be described here.

[0028] The top of the vehicle body 1 is fixedly connected to a fixed frame 31. The fixed frame 31 is a vertically upward rod structure. The fixed frame 31 is rotatably connected to a rotating frame 32. The rotating frame 32 is fixedly connected to a reel 4. The reel 4 is provided with a resiliently pullable traction line 41. The end of the traction line 41 away from the reel 4 is fixedly connected to a caulking gun 5.

[0029] The caulking gun 5 includes a gun body 51 connected to the feed hose 21. A flow channel 510 is provided within the gun body 51. A valve body 57, a controlled solenoid valve, is mounted on the gun body 51. A handle 52 is fixedly attached to the gun body 51. This handle 52 is equipped with an electrically controlled feed button 521. Both the feed button 521 and the valve body 57 are electrically connected to the control system. When a worker presses the feed button 521, the valve body 57 opens, allowing the flow channel 510 to flow. Simultaneously, the pump in the delivery system extrudes the molten asphalt, completing the feed operation of the caulking gun 5. A discharge trowel 56 is mounted on the end of the caulking gun 5 away from the feed hose 21 via a universal joint 55.

[0030] Preferably, the rotating frame 32 is an inverted L-shaped structure, with one end pivotally connected to the fixed frame 31 and the other end perpendicular to the fixed frame 31. A cable reel 4 is mounted upside down at the bottom. A cable drum 42 is pivotally connected to the interior of the cable reel 4, around which the traction cable 41 is wound. A spring 43 is fixedly connected between the reel 42 and the cable reel 4. The spring 43 exerts an inward force on the traction cable 41. This force, combined with the spring 43 and the traction cable 41, pulls the caulking gun 5 upward, a force that balances the weight of the caulking gun 5 and the asphalt inside.

[0031] Preferably, a side handle 54 is fixedly connected to one side of the caulking gun 5. The side handle 54 is mounted on the gun body 51 and is located between the handle 52 and the universal joint 55. A worker can operate the handle 52 with one hand and hold the side handle 54 with the other hand to control the caulking gun 5. Since the caulking gun 5 and the asphalt inside have a certain weight, the worker can hold it better in this way and fill the cracks in the road more stably.

[0032] Preferably, the discharge smoothing plate 56 includes a universal ball joint 561 mounted within the universal joint 55. A flow channel cavity 560 is defined within the universal ball joint 561 and the discharge smoothing plate 56. A plurality of discharge ports 562 are provided at the end of the discharge smoothing plate 56 remote from the universal ball joint 561. A flared flow channel 563 is provided at the end of the universal ball joint 561 remote from the discharge smoothing plate 56. The flared flow channel 563 ensures that when the universal ball joint 561 rotates, the passage between the flow channel 510 and the flow channel cavity 560 always maintains a sufficient flow channel diameter for asphalt to pass through. Asphalt can then flow out of the discharge smoothing plate 56 through the flow channel 510, the flow channel cavity 560, and the discharge ports 562 in sequence.

[0033] Preferably, a heating layer 511 is provided inside the gun body 51, and an insulating layer 512 is provided between the gun body 51 and the heating layer 511. The handle 52 and the side handle 54 are installed at corresponding positions of the gun body 51 and the heating layer 511. This arrangement can prevent workers from getting burned during use.

[0034] In summary, in actual use, this device can be operated by two personnel: one person controls the vehicle body 1 and drives slowly along the road crack, while the other person fills the crack with the caulking gun 5. When operating the caulking gun 5, the personnel use one hand to operate the handle 52 and the other hand to hold the side handle 54. The discharging and smoothing disc 56 discharges the material. After the material flows into the crack, the discharging and smoothing disc 56 can smooth the molten asphalt. The coordination of the universal joint 55 and the discharging and smoothing disc 56 enables the asphalt to be smoothed at multiple angles. During use, the traction line 41 can always pull the caulking gun 5 upward, reducing its weight.

[0035] Thus, the device can caulk cracks in roads by operating the caulking gun 5. This eliminates the need for the repair vehicle to precisely follow the crack path, reducing the difficulty of operating the vehicle to fill the crack. Furthermore, the traction line 41 can consistently pull the caulking gun 5 upward, reducing its weight. Even during prolonged use, the caulking gun 5 does not impose significant physical strain on the operator, making it both safe and easy to use.

[0036] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A road crack filling device, characterized in that: The vehicle comprises a vehicle body (1), an asphalt processing device (2) is installed on the vehicle body (1), and a caulking gun (5) is installed on the asphalt processing device (2) via a material delivery hose (21); The top of the vehicle body (1) is fixedly connected to a fixed frame (31), the fixed frame (31) is rotatably connected to a rotating frame (32), the rotating frame (32) is fixedly connected to a wire reel (4), the upper disc of the wire reel (4) is provided with a traction line (41) that can be elastically pulled out, the end of the traction line (41) away from the wire reel (4) is fixedly connected to a caulking gun (5), and the end of the caulking gun (5) away from the material delivery hose (21) is installed with a discharge screed disc (56) through a universal joint (55).

2. The road crack filling device according to claim 1, characterized in that: The asphalt processing equipment (2) is internally provided with an asphalt storage tank, a heating system, a conveying system and a control system.

3. The road crack filling device according to claim 2, characterized in that: The caulking gun (5) comprises a gun body (51) connected to a feeding hose (21), a flow channel (510) being provided inside the gun body (51), a valve body (57) being provided on the gun body (51), a handle (52) being fixedly connected to the gun body (51), a feeding button (521) being provided on the handle (52), and both the feeding button (521) and the valve body (57) being electrically connected to a control system.

4. The road crack filling device according to claim 1, characterized in that: The rotating frame (32) is an "L"-shaped structure, one end of which is rotatably connected to the fixed frame (31); the other end is perpendicular to the fixed frame (31), and the reel (4) is upside down at the bottom.

5. The road crack filling device according to claim 1, characterized in that: The reel (4) is internally rotatably connected to a reel (42), the traction line (41) is wound on the reel (42), and a spring spring (43) is fixedly connected between the reel (42) and the reel (4).

6. The road crack filling device according to claim 1, characterized in that: A side handle (54) is fixedly connected to one side of the caulking gun (5).

7. The road crack filling device according to claim 3, characterized in that: A heating layer (511) is provided inside the caulking gun (5), and a heat insulating layer (512) is provided between the gun body (51) and the heating layer (511).

8. The road crack filling device according to claim 1, characterized in that: The discharge smoothing disc (56) comprises a universal ball head (561) sleeved inside a universal joint (55); a flow channel cavity (560) is provided in the universal ball head (561) and the discharge smoothing disc (56); and a plurality of discharge ports (562) are provided at one end of the discharge smoothing disc (56) away from the universal ball head (561).

9. The road crack filling device according to claim 8, characterized in that: An end of the universal ball joint (561) away from the discharge smoothing plate (56) is provided with a flared flow channel (563).

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