Municipal pavement crack heating pretreatment equipment

Abstract

The utility model discloses municipal road surface crack heating pretreatment equipment which comprises a plate trailer, the top of the plate trailer is rotatably connected with a stretching mechanism, the top of the plate trailer is fixedly connected with a supporting frame, the top of the plate trailer is fixedly connected with a push rod, the top of the supporting frame is fixedly connected with an air heater, and one side of the air heater is fixedly connected with a support. The top of the support is fixedly connected with a swing mechanism, the output end of the air heater is fixedly connected with a heat outlet pipe, the heat outlet pipe penetrates through the stretching mechanism and the sleeve to be fixedly connected to the top of the plate trailer, the heat outlet pipe is inserted into the sleeve and placed along the path of the sleeve, the nozzle is fixedly connected to one end of the heat outlet pipe, and the handle is fixedly connected to the outer surface of the nozzle. The gravity ball is placed on the inner wall of the sleeve and connected to the outer wall of the heat outlet pipe in a sleeving mode, and the motor is fixedly connected to the top of the support. According to the utility model, the heating area can be increased so as to heat a plurality of cracks, and meanwhile, the heat pipes are drawn out to accurately heat the interiors of the cracks.

Description

Technical Field

[0001] This utility model relates to the field of road heating technology, and in particular to a heating pretreatment device for municipal road surface cracks. Background Technology

[0002] In existing technologies, preheating of road surface cracks aims to soften the texture and increase the porosity of the road surface material around the crack by raising the temperature of the crack, while reducing the viscosity of the crack filling material and enhancing its fluidity. This improves the adhesion between the crack filling material and the crack wall, ensuring that the crack filling material can fully fill the crack.

[0003] A search revealed a utility model patent with Chinese patent publication number CN219059704U, which discloses a road crack repair tool. The tool includes a base, a crack heating and cleaning assembly mounted on the base, an electric telescopic rod mounted on the base, a connecting block fixedly connected to the telescopic end of the electric telescopic rod, the connecting block slidably engaging within a rectangular groove, and a fixed connection between the connecting block and an air outlet. A ground leveling assembly is mounted on the connecting block, comprising two sets of movable blocks and several sets of springs. The movable blocks are hinged to the connecting block. Both sets of movable blocks have several sets of fixing holes, and the two ends of the springs contact the bottom ends of the two corresponding fixing holes. One set of movable blocks has several sets of fixing posts, which pass through several sets of connecting holes on the other set of movable blocks. A road repair material mixing assembly is mounted on the base. Although the highway crack repair tool described above can move the air outlet back and forth above the crack using a hot air blower and an electric telescopic rod, which can raise the temperature and blow out the dust, thus improving the adhesion between the repair material and the inner wall of the crack, the heating method of moving back and forth above the crack is mainly for single cracks. When heating large cracks, the heating efficiency is low, and for cracks that are too deep, it is difficult to effectively heat the inside. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heating pretreatment device for municipal road surface cracks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heating pretreatment device for municipal road surface cracks includes a flatbed cart, a support frame fixedly connected to the top of the flatbed cart, a tensioning mechanism rotatably connected to the top of the flatbed cart, a bracket fixedly connected to one side of a hot air blower, a swinging mechanism fixedly connected to the top of the bracket, and a heat outlet pipe fixedly connected to the output end of the hot air blower.

[0007] As a further improvement of this utility model: a push rod is fixedly connected to the top of the trolley, a hot air blower is fixedly connected to the top of the support frame, and the heat outlet pipe passes through the stretching mechanism.

[0008] As a further embodiment of this utility model: the stretching mechanism includes a sleeve, a nozzle, a handle and a gravity ball, the sleeve is fixedly connected to the top of the trolley, and the heat pipe is inserted into the sleeve and placed along the sleeve path.

[0009] As a further embodiment of this utility model: the nozzle is fixedly connected to one end of the heat outlet pipe, the handle is fixedly connected to the outer surface of the nozzle, the gravity ball is placed on the inner wall of the sleeve, and the gravity ball is sleeved on the outer wall of the heat outlet pipe.

[0010] As a further embodiment of this utility model: the swing mechanism includes a motor, a connecting frame, a disc, a collar, a guide post, and a swing plate, with the motor fixedly connected to the top of the support.

[0011] As a further embodiment of this utility model: the connecting frame is rotatably connected to the motor output end, and the connecting frame is fixedly connected to the bracket, the disc is fixedly connected to the motor output end, the collar is fixedly connected to one side of the disc through the connecting post, and the guide post is slidably connected to the inner wall of the collar.

[0012] As a further embodiment of this utility model: the swing plate is rotatably connected to both sides of the inner wall of the connecting frame, the swing plate is fixedly connected to both ends of the guide post, and the swing plate is fixedly connected to the sleeve.

[0013] Compared with the prior art, this utility model provides a heating pretreatment device for municipal road surface cracks, which has the following beneficial effects:

[0014] When road surface cracks need to be heated, the hot air blower is first started. The hot air from the blower is output from the stretching mechanism through pipes. The operator can push the trolley and start the swinging mechanism, which makes the stretching mechanism swing left and right on the top of the trolley for large-area heating. When some cracks are too deep to be effectively heated, the heating pipe can be stretched out by the stretching mechanism and engaged with the crack to effectively heat the inside of the crack. After heating, the heating pipe will automatically return to its original position by simply releasing the handle. Thus, the swinging mechanism can enable the stretching mechanism to drive the heating pipe to achieve rapid preheating of a large area of ​​the road surface, heat multiple cracks, and precisely heat deeper cracks.

[0015] When precise heating of road surface cracks is required, the operator holds the handle and pulls down the heating pipe. The heating pipe moves along the inner wall of the sleeve, while the gravity ball rises with it. The operator then aligns the nozzle with the crack, ensuring it fits snugly. Hot air from the hot air blower directly heats the crack through the nozzle. Once heating is complete, the operator releases the handle, and the gravity ball falls under gravity, automatically retracting the heating pipe and nozzle. This tensioning mechanism design allows the nozzle to be directly aligned with the crack, ensuring uniform heating of all parts of the crack, improving the adhesion between the repair material and the crack's inner wall, and thus enhancing the quality of road repair. Furthermore, the position and angle of the nozzle can be flexibly adjusted according to the actual condition of the crack.

[0016] When the sleeve needs to swing back and forth, the motor is started. The motor output drives the disc to rotate, and the collar on the edge of the disc makes an eccentric circular motion with the disc. At this time, the guide post, which is slidably connected in the collar, swings left and right under the force of the collar's circular motion. This drives the swing plate to swing left and right synchronously at the connection point of the connecting frame. Therefore, the sleeve moves synchronously with the swing plate, and the heat outlet pipe and nozzle inside the sleeve swing accordingly, realizing large-area scanning heating of the road surface. This avoids local overheating or undercooling, makes the temperature distribution around the crack more uniform, improves the penetration effect of the repair material, and improves the heating efficiency.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0018] Figure 1 This is a front view of a municipal road surface crack heating pretreatment device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the tensioning mechanism in a municipal road surface crack heating pretreatment device proposed in this utility model;

[0020] Figure 3 An exploded view of the tensioning mechanism in a municipal road surface crack heating pretreatment device proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the swing mechanism in a municipal road surface crack heating pretreatment device proposed in this utility model;

[0022] Figure 5 This is an enlarged detail view of the swing mechanism in a municipal road surface crack heating pretreatment device proposed in this utility model.

[0023] In the diagram: 1. Cart; 2. Tensioning mechanism; 3. Swinging mechanism; 4. Bracket; 5. Hot air blower; 6. Push rod; 7. Support frame; 201. Sleeve; 202. Nozzle; 203. Handle; 204. Gravity ball; 301. Motor; 302. Connecting frame; 303. Disc; 304. Collar; 305. Guide post; 306. Swinging plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] A municipal road surface crack heating pretreatment device, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the device includes a trolley 1, a tensioning mechanism 2 rotatably connected to the top of the trolley 1, a support frame 7 fixedly connected to the top of the trolley 1, a push rod 6 fixedly connected to the top of the trolley 1, a hot air blower 5 fixedly connected to the top of the support frame 7, a bracket 4 fixedly connected to one side of the hot air blower 5, a swinging mechanism 3 fixedly connected to the top of the bracket 4, and a heat outlet pipe fixedly connected to the output end of the hot air blower 5, with the heat outlet pipe passing through the tensioning mechanism 2.

[0028] When it is necessary to heat the road surface cracks, first start the hot air blower 5. The hot air from the hot air blower 5 is output from the stretching mechanism 2 through the pipe. The operator can push the trolley 1 and start the swinging mechanism 3, so that the stretching mechanism 2 swings left and right on the top of the trolley 1 to carry out large-area heating treatment.

[0029] When some cracks are too deep to be effectively heated, the heating pipe can be stretched out by the stretching mechanism 2 and engaged with the crack to effectively heat the inside of the crack. After heating, the heating pipe will automatically return to its original position by simply releasing the handle. Thus, the swinging mechanism 3 can drive the stretching mechanism 2 to achieve rapid pre-heating of a large area of ​​the road surface, heat multiple cracks, and precisely heat deeper cracks.

[0030] In order to precisely heat road surface cracks, such as Figure 2 and Figure 3 As shown, the stretching mechanism 2 includes a sleeve 201, a nozzle 202, a handle 203, and a gravity ball 204. The sleeve 201 is fixedly connected to the top of the trolley 1, and the heat outlet pipe is inserted into the sleeve 201 and placed along the path of the sleeve 201. The nozzle 202 is fixedly connected to one end of the heat outlet pipe, the handle 203 is fixedly connected to the outer surface of the nozzle 202, and the gravity ball 204 is placed on the inner wall of the sleeve 201 and sleeved on the outer wall of the heat outlet pipe.

[0031] When precise heating of road surface cracks is required, the operator holds handle 203 and pulls the heat outlet pipe downward. At this time, the heat outlet pipe moves along the inner wall of sleeve 201, and the gravity ball 204 rises with the movement of the heat outlet pipe.

[0032] Next, the operator aims the nozzle 202 at the road surface crack, ensuring that the nozzle 202 fits against the crack. The hot air generated by the hot air blower 5 then directly and precisely heats the crack through the nozzle 202.

[0033] Once heating is complete, the operator releases handle 203, and gravity ball 204 begins to fall under the influence of gravity, causing the heating pipe and nozzle 202 to automatically retract and reset. Thus, with the help of the design of tensioning mechanism 2, nozzle 202 can be directly aligned with the road surface crack, ensuring that all parts of the crack are heated evenly, improving the adhesion between the repair material and the inner wall of the crack, thereby improving the quality of road repair. At the same time, the position and angle of nozzle 202 can be flexibly adjusted according to the actual situation of the crack.

[0034] In order to perform large-area heating treatment, such as Figure 4 and Figure 5As shown, the swing mechanism 3 includes a motor 301, a connecting frame 302, a disc 303, a collar 304, a guide post 305, and a swing plate 306. The motor 301 is fixedly connected to the top of the bracket 4. The connecting frame 302 is rotatably connected to the output end of the motor 301 and is fixedly connected to the bracket 4. The disc 303 is fixedly connected to the output end of the motor 301. The collar 304 is fixedly connected to one side of the disc 303 through the connecting post. The guide post 305 is slidably connected to the inner wall of the collar 304. The swing plate 306 is rotatably connected to both sides of the inner wall of the connecting frame 302. The swing plate 306 is fixedly connected to both ends of the guide post 305 and is fixedly connected to the sleeve 201.

[0035] When the sleeve 201 needs to swing back and forth, the motor 301 is started. The output end of the motor 301 drives the disc 303 to rotate. The collar 304 on the edge of the disc 303 moves eccentrically in a circular motion with the disc 303. At this time, the guide post 305, which is slidably connected in the collar 304, swings left and right under the force of the circular motion of the collar 304. This drives the swing plate 306 to swing left and right synchronously at the connection point of the connecting frame 302. Therefore, the sleeve 201 moves synchronously with the swing plate 306. The heat outlet pipe and nozzle 202 in the sleeve 201 swing accordingly, realizing large-area scanning heating of the road surface. This avoids local overheating or undercooling, makes the temperature distribution around the crack more uniform, improves the penetration effect of the repair material, and improves the heating efficiency.

[0036] Working principle: When it is necessary to heat the road surface cracks, first start the hot air blower 5. The hot air from the hot air blower 5 is output from the stretching mechanism 2 through the pipe. The operator can push the trolley 1 and start the swing mechanism 3, so that the stretching mechanism 2 swings left and right on the top of the trolley 1 to carry out large-area heating treatment.

[0037] When some gaps are too deep to effectively heat the interior, the heating element can be stretched out using the stretching mechanism 2, engaging with the gap to effectively heat the interior. Once heating is complete, simply releasing the mechanism will automatically reset the heating element.

[0038] When precise heating of road surface cracks is required, the operator holds handle 203 and pulls the heat outlet pipe downward. At this time, the heat outlet pipe moves along the inner wall of sleeve 201, and the gravity ball 204 rises with the movement of the heat outlet pipe.

[0039] Next, the operator aims the nozzle 202 at the road surface crack, ensuring that the nozzle 202 fits against the crack. The hot air generated by the hot air blower 5 then directly and precisely heats the crack through the nozzle 202.

[0040] Once heating is complete, the operator releases handle 203, and gravity ball 204 begins to fall under the influence of gravity, causing the heating pipe and nozzle 202 to automatically retract and reset.

[0041] When the sleeve 201 needs to swing back and forth, the motor 301 is started. The output end of the motor 301 drives the disc 303 to rotate. The collar 304 on the edge of the disc 303 moves eccentrically in a circular motion with the disc 303. At this time, the guide post 305, which is slidably connected in the collar 304, swings left and right under the force of the circular motion of the collar 304. This drives the swing plate 306 to swing left and right synchronously at the connection point of the connecting frame 302. Therefore, the sleeve 201 moves synchronously with the swing plate 306, and the heat outlet pipe and nozzle 202 in the sleeve 201 swing accordingly, realizing large-area scanning heating of the road surface.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A municipal pavement crack heating pre-treatment apparatus comprising a cart (1), characterized in that, The top of the cart (1) is fixedly connected to a support frame (7), the top of the cart (1) is rotatably connected to a tensioning mechanism (2), the side of the hot air blower (5) is fixedly connected to a bracket (4), the top of the bracket (4) is fixedly connected to a swinging mechanism (3), and the output end of the hot air blower (5) is fixedly connected to a heat outlet pipe.

2. The municipal pavement crack heating pre-treatment apparatus according to claim 1, characterized in that, The top of the trolley (1) is fixedly connected to a push rod (6), and the top of the support frame (7) is fixedly connected to a hot air blower (5), with the heat pipe passing through the tensioning mechanism (2).

3. The municipal pavement crack heating pre-treatment apparatus according to claim 1, characterized in that, The stretching mechanism (2) includes a sleeve (201), a nozzle (202), a handle (203) and a gravity ball (204). The sleeve (201) is fixedly connected to the top of the trolley (1), and the heat pipe is inserted into the sleeve (201) and placed along the path of the sleeve (201).

4. The municipal pavement crack heating pre-treatment apparatus according to claim 3, characterized in that, The nozzle (202) is fixedly connected to one end of the heat outlet pipe, the handle (203) is fixedly connected to the outer surface of the nozzle (202), the gravity ball (204) is placed on the inner wall of the sleeve (201), and the gravity ball (204) is sleeved on the outer wall of the heat outlet pipe.

5. The municipal pavement crack heating pre-treatment apparatus according to claim 1, characterized in that, The swing mechanism (3) includes a motor (301), a connecting frame (302), a disc (303), a collar (304), a guide post (305), and a swing plate (306). The motor (301) is fixedly connected to the top of the bracket (4).

6. A municipal pavement crack heating pretreatment device according to claim 5, characterized in that, The connecting frame (302) is rotatably connected to the output end of the motor (301), and the connecting frame (302) is fixedly connected to the bracket (4). The disc (303) is fixedly connected to the output end of the motor (301). The collar (304) is fixedly connected to one side of the disc (303) through the connecting post. The guide post (305) is slidably connected to the inner wall of the collar (304).

7. The municipal pavement crack heating pre-treatment apparatus according to claim 5, characterized in that, The swing plate (306) is rotatably connected to both sides of the inner wall of the connecting frame (302), the swing plate (306) is fixedly connected to both ends of the guide post (305), and the swing plate (306) is fixedly connected to the sleeve (201).

Images