A pavement crack patching device

Abstract

The utility model provides a kind of road surface crack pasting and sealing device, including frame main body and anti-crack pasting coiled material unit;The bottom of the frame main body is equipped with two groups of travelling wheel groups, the drive wheel group includes a drive shaft rotationally connected with the frame main body by bearing, and the first pulley is fixedly connected with the one end of the drive shaft and extends to the outside of the frame main body;The first pulley is drivenly connected with the second pulley by transmission belt, the second pulley is coaxially connected with the input end of isolation film winding roller, and the isolation film winding roller is rotatably installed on the frame main body;The utility model relates to pasting and sealing device technical field, while pushing anti-crack pasting and laying, isolation film is synchronously wound, replace traditional operation mode of relying on two people to tear film and collect film;This not only greatly reduces labor cost and labor intensity, but also avoids the problem of uneven pasting, wrinkling or hollowing caused by different personnel operation.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, and in particular to a road surface crack sealing device. Background Technology

[0002] In road maintenance and construction, pavement cracks are one of the most common forms of damage. To extend the service life of the pavement and prevent moisture from seeping into the base layer, crack-resistant tape (also known as crack-resistant tape or crack sealant) is often used for sealing. Crack-resistant tape usually consists of a self-adhesive roll material and a release film covering its surface. During construction, the roll material needs to be unrolled while the release film is being torn off and rolled up to achieve adhesion between the crack-resistant tape and the pavement. However, the traditional manual sealing method usually relies on two people working together: one person pushes and lays the crack-resistant tape roll, while the other person simultaneously tears off and rolls up the release liner. This method not only has high personnel requirements and low construction efficiency, but also has great difficulty in operation and coordination. It is easy for uneven pasting, wrinkling or hollowing to occur due to the release liner being torn off and rolled up at different times. Utility Model Content

[0003] The purpose of this invention is to provide a road surface crack sealing device that replaces the traditional manual film-tearing operation and improves construction efficiency.

[0004] This utility model provides a road crack sealing device, including a frame body and a crack-resistant adhesive roll unit. The crack-resistant adhesive roll unit is rotatably mounted on the rear end of the frame body through a roll mounting mechanism. The bottom of the frame body is provided with two sets of wheels: one set at the front end of the frame body is a universal wheel set, and the other set at the rear end of the frame body is a drive wheel set. The drive wheel set includes a drive shaft rotatably connected to the frame body through a bearing, and two driven wheels are coaxially fixed on the drive shaft. One end of the drive shaft extends to the outside of the frame body and is fixedly connected to a first pulley. The first pulley is connected to the second pulley via a transmission belt. The second pulley is coaxially connected to the input end of the separator film take-up roller. The separator film take-up roller is rotatably mounted on the frame body.

[0005] Preferably, the separator film take-up roller includes a detachable take-up roller core, and the two ends of the take-up roller core are rotatably connected to the vehicle frame body through a first connecting shaft and a second connecting shaft, respectively; The first connecting shaft is fixedly connected to the second pulley; The take-up roller core is provided with snap-fit ​​connectors at both ends, and the opposite ends of the first connecting shaft and the second connecting shaft are provided with snap-fit ​​grooves that are adapted to the snap-fit ​​connectors and are locked by fasteners.

[0006] Preferably, the roll material mounting mechanism includes two mounting seats symmetrically fixed to the rear end of the frame body, and each mounting seat is threaded with an adjusting screw; one end of the adjusting screw is fixed with an operating handwheel, and the other end is rotatably connected to a connecting shaft; the end of the connecting shaft facing the crack-resistant roll material unit is provided with a non-circular drive head, which is used to insert into the non-circular assembly hole corresponding to the center of the crack-resistant roll material unit.

[0007] Preferably, the driving head is a rectangular driving head, and the center of the anti-crack tape roll unit is provided with a rectangular assembly hole that matches it.

[0008] Preferably, the frame body is further provided with a compaction mechanism located on the rear side of the anti-crack tape roll unit in the application direction; the compaction mechanism includes a support fixed on the frame body, with swing arms hinged to both sides of the support, and a compaction roller hinged to the free ends of the two swing arms, the bottom surface of the compaction roller being used to contact the surface of the laid anti-crack tape.

[0009] Preferably, the swing arm is L-shaped and includes a horizontal arm section hinged to the support and an inclined arm section for mounting the compaction roller.

[0010] Preferably, a reinforcing crossbar is connected between the corners of the two swing arms.

[0011] Preferably, an inclined tension spring is connected between the support and the horizontal arm section of the swing arm to provide elastic downward pressure to the compaction roller.

[0012] The road surface crack sealing device provided by this utility model has the following beneficial effects: By setting up a release film winding mechanism linked to the drive wheel assembly, the release film is wound up simultaneously while the anti-crack tape is being laid, replacing the traditional operation method that relies on two people working together to tear and wind up the film. This not only significantly reduces labor costs and labor intensity, but also avoids problems such as uneven pasting, wrinkling, or air bubbles caused by asynchronous operation. The release film winding roller used for winding up the release film adopts a detachable design, further improving the overall ease of use of the equipment. Through the design of the compaction mechanism, the compaction roller can dynamically adjust the downward pressure according to the undulation of the road surface, which can ensure that the anti-crack tape is fully bonded to the road surface and the air is tightly sealed, while avoiding damage to the material due to excessive pressure or poor adhesion due to insufficient pressure. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the main frame, caster wheel assembly, drive shaft, and driven wheels of this utility model; Figure 3 This is a schematic diagram of the structure of the take-up roller core, the first connecting shaft, and the second connecting shaft in this utility model; Figure 4 This is a schematic diagram of the structure of the mounting base, adjusting screw, operating handwheel, connecting shaft, and drive head in this utility model. Figure 5 This is a schematic diagram of the structure of the support, swing arm, compaction roller, reinforcing crossbar, and tension spring in this utility model.

[0015] Explanation of reference numerals in the attached figures: 1-Chassis main body, 2-Crack-resistant adhesive roll unit, 3-Roll installation mechanism, 31-Mounting base, 32-Adjusting screw, 33-Operating handwheel, 34-Connecting shaft, 341-Drive head, 4-Universal wheel set, 5-Drive wheel set, 51-Drive shaft, 52-Driven travel wheel, 61-First pulley, 62-Second pulley, 63-Transmission belt, 7-Resistant film take-up roller, 71-Take-up roller core, 72-First connecting shaft, 73-Second connecting shaft, 8-Compacting mechanism, 81-Support, 82-Swing arm, 83-Compacting roller, 84-Reinforcing crossbar, 85-Tension spring. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model.

[0018] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this embodiment, as Figure 1 and Figure 2 As shown, a road crack sealing device includes a frame body 1 and a crack-resistant sealing roll unit 2. The crack-resistant sealing roll unit 2 is rotatably mounted on the rear end of the frame body 1 through a roll mounting mechanism 3. The bottom of the frame body 1 is provided with two sets of wheels. One set located at the front end of the frame body 1 is a universal wheel set 4, and the other set located at the rear end of the frame body 1 is a drive wheel set 5. The drive wheel set 5 includes a drive shaft 51 rotatably connected to the frame body 1 through a bearing. Two driven wheels 52 are coaxially fixed on the drive shaft 51. One end of the drive shaft 51 extends to the outside of the frame body 1 and is fixedly connected to a first pulley 61. The first pulley 61 is connected to the second pulley 62 through a transmission belt 63. The second pulley 62 is coaxially connected to the input end of the release film take-up roller 7. The release film take-up roller 7 is rotatably mounted on the frame body 1.

[0020] Thus, by pushing (or driving with external mobile equipment) the frame body 1, the driven wheels 52 of the drive wheel set 5 roll with the road surface and drive the drive shaft 51 to rotate. The first pulley 61 on the drive shaft 51 drives the second pulley 62 to rotate through the transmission belt 63, thereby driving the release film winding roller 7 to rotate synchronously. This allows the release film to be automatically wound up during the anti-crack tape laying process, eliminating the need for manual assistance in tearing the film, improving construction efficiency and reducing labor costs.

[0021] In some embodiments, such as Figure 3 As shown, the separator film take-up roller 7 includes a detachable take-up roller core 71. The two ends of the take-up roller core 71 are rotatably connected to the frame body 1 through a first connecting shaft 72 and a second connecting shaft 73, respectively. The first connecting shaft 72 is fixedly connected to the second pulley 62. The two ends of the take-up roller core 71 are provided with snap-fit ​​connectors. The opposite ends of the first connecting shaft 72 and the second connecting shaft 73 are provided with snap-fit ​​grooves that are adapted to the snap-fit ​​connectors and are locked by fasteners.

[0022] Specifically, the take-up roller core 71 has strip-shaped (or rectangular or hexagonal) snap-fit ​​connectors at both ends. Correspondingly, the ends of the first connecting shaft 72 and the second connecting shaft 73 are provided with matching slots. After the snap-fit ​​connectors are inserted into the slots, they are locked by bolts or quick-release pins. This structure facilitates quick disassembly and replacement of the take-up roller core 71 after the release film is fully rolled up, preventing disruption to construction continuity due to inconvenient disassembly of the take-up roller.

[0023] In some embodiments, such as Figure 4 As shown, the roll material mounting mechanism 3 includes two mounting seats 31 symmetrically fixed to the rear end of the frame body 1. Each mounting seat 31 is threaded with an adjusting screw 32. One end of the adjusting screw 32 is fixed with an operating handwheel 33, and the other end is rotatably connected to a connecting shaft 34. The end of the connecting shaft 34 facing the crack-resistant roll material unit 2 is provided with a non-circular drive head 341, which is used to insert into the non-circular assembly hole corresponding to the center of the crack-resistant roll material unit 2. Specifically, by rotating the operating handwheel 33, the adjusting screw 32 is driven to move axially within the mounting base 31, thereby adjusting the position of the connecting shaft 34 and its end drive head 341 so that it can be adapted to anti-crack tape roll units 2 of different widths.

[0024] In some embodiments, such as Figure 4 As shown, the drive head 341 is a rectangular drive head, and the center of the anti-crack tape roll unit 2 is provided with a rectangular assembly hole that matches it. Specifically, the rectangular drive head 341 and the rectangular assembly hole have a simple structure, good centering, and are easy to process and assemble, preventing the roll material from twisting or getting stuck due to uneven force during the laying process.

[0025] In some embodiments, such as Figure 5As shown, the frame body 1 is also provided with a compaction mechanism 8 located on the rear side of the anti-crack tape roll unit 2 in the application direction; the compaction mechanism 8 includes a support 81 fixed on the frame body 1, and swing arms 82 are respectively hinged on both sides of the support 81. The free ends of the two swing arms 82 are hinged together with a compaction roller 83, and the bottom surface of the compaction roller 83 is used to contact the surface of the laid anti-crack tape. Specifically, the compaction roller 83 adheres tightly to the surface of the anti-crack tape under its own weight and the action of the elastic element. As the frame body 1 moves, the compaction roller 83 rolls the anti-crack tape, so that the anti-crack tape and the road surface are fully bonded, air bubbles are eliminated, and the bonding firmness and sealing effect are improved. In addition, the hinged design of the swing arm 82 allows the compaction roller 83 to adapt to uneven road surfaces and maintain the uniformity of compaction force.

[0026] In some embodiments, such as Figure 5 As shown, the swing arm 82 is L-shaped and includes a horizontal arm section hinged to the support 81 and an inclined arm section for mounting the compaction roller 83.

[0027] Specifically, the L-shaped swing arm structure ensures the flexibility of the swing arm while the inclined arm section makes the installation position of the compaction roller 83 closer to the road surface, thus enhancing the compaction stability.

[0028] In some embodiments, such as Figure 5 As shown, a reinforcing crossbar 84 connects the corners of the two swing arms 82; Specifically, the reinforcing crossbar 84 enhances the structural integrity between the two swing arms 82, preventing the swing arms 82 from shifting due to uneven force during compaction, and ensuring that the compaction roller 83 always maintains parallel contact with the surface of the anti-crack tape.

[0029] In some embodiments, such as Figure 5 As shown, an inclined tension spring 85 is connected between the support 81 and the horizontal arm section of the swing arm 82 to provide elastic downward pressure to the compaction roller 83. It should be noted that the tension spring 85 is arranged at an angle, and the tension of the tension spring 85 is converted into the downward pressure of the compaction roller 83 on the road surface. The elasticity of the spring allows the compaction roller 83 to be raised appropriately when it encounters a road surface protrusion and pressed down in time when it encounters a depression, so as to prevent the anti-crack tape from being damaged due to excessive pressure or the adhesion from being weak due to insufficient pressure.

[0030] The working principle of this application is illustrated below with a preferred embodiment: First, the crack-resistant tape roll unit 2 is installed between two roll installation mechanisms 3. By rotating the operating handwheel 33, the adjusting screw 32 is moved in the mounting base 31. The mounting base 31 drives the drive head 341 to be inserted into the slots on both sides of the crack-resistant tape roll unit 2 through the connecting shaft 34. The two sets of roll installation mechanisms 3 fix the two sides of the crack-resistant tape roll unit 2. Then, the material head of the crack-resistant tape roll unit 2 is separated from the release film. The adhesive material head is pasted on the crack, and the release film is fixed on the outer periphery of the release film take-up roller 7. The frame body 1 is moved by human power (or external mobile equipment), and the universal wheel set 4 controls the direction of movement of the frame body 1. The driven wheels 52 drive the drive shaft 51 to rotate in the frame body 1. At the same time, the drive shaft 51 drives the first pulley 61 to rotate. The first pulley 61 drives the second pulley 62 to rotate through the transmission belt 63. The second pulley 62 drives the separator film winding roller 7 to rotate in the frame body 1 to wind up the separated separator film. When it is necessary to disassemble the take-up roller core 71, simply rotate the fixing bolts at both ends of the take-up roller core 71. The bolts will separate from the first connecting shaft 72 and the second connecting shaft 73, and then the take-up roller core 71 together with the release film can be disassembled. Rotate the swing arm 82 on the support 81. The swing arm 82 drives the compaction roller 83 to press down onto the crack-resistant adhesive roll unit 2. At the same time, the tension spring 85 gives the swing arm 82 a tension force that forces the compaction roller 83 to press against the crack-resistant adhesive roll unit 2. During the movement of the vehicle frame body 1, the compaction roller 83 forces the crack-resistant adhesive roll unit 2 to stick to the crack in the road.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A road surface crack sealing device, comprising a frame body (1) and a crack-resistant sealing roll unit (2), characterized in that: The anti-crack tape unit (2) is rotatably mounted on the rear end of the frame body (1) via a roll installation mechanism (3). The bottom of the frame body (1) is provided with two sets of walking wheels. One set located at the front end of the frame body (1) is a universal wheel set (4), and the other set located at the rear end of the frame body (1) is a drive wheel set (5). The drive wheel assembly (5) includes a drive shaft (51) rotatably connected to the frame body (1) via a bearing, and two driven wheels (52) are coaxially fixed on the drive shaft (51); one end of the drive shaft (51) extends to the outside of the frame body (1) and is fixedly connected to a first pulley (61). The first pulley (61) is connected to the second pulley (62) via a transmission belt (63). The second pulley (62) is coaxially connected to the input end of the isolation film take-up roller (7). The isolation film take-up roller (7) is rotatably mounted on the frame body (1).

2. The road crack sealing device according to claim 1, characterized in that, The isolation film take-up roller (7) includes a detachable take-up roller core (71), and the two ends of the take-up roller core (71) are rotatably connected to the frame body (1) through a first connecting shaft (72) and a second connecting shaft (73), respectively. The first connecting shaft (72) is fixedly connected to the second pulley (62); The take-up roller core (71) is provided with snap-fit ​​connectors at both ends, and the opposite ends of the first connecting shaft (72) and the second connecting shaft (73) are provided with snap-fit ​​grooves that are adapted to the snap-fit ​​connectors and are locked by fasteners.

3. The road crack sealing device according to claim 1, characterized in that, The roll material installation mechanism (3) includes two mounting seats (31) symmetrically fixed to the rear end of the frame body (1), and each mounting seat (31) is threaded with an adjusting screw (32); one end of the adjusting screw (32) is fixed with an operating handwheel (33), and the other end is rotatably connected with a connecting shaft (34); the end of the connecting shaft (34) facing the crack-resistant roll material unit (2) is provided with a non-circular drive head (341) for inserting into the non-circular assembly hole corresponding to the center of the crack-resistant roll material unit (2).

4. The road crack sealing device according to claim 3, characterized in that, The drive head (341) is a rectangular drive head, and the center of the anti-crack roll unit (2) is provided with a rectangular assembly hole that matches it.

5. The road surface crack sealing device according to claim 1, characterized in that, The frame body (1) is also provided with a compaction mechanism (8) located on the rear side of the anti-crack tape roll unit (2) in the application direction; the compaction mechanism (8) includes a support (81) fixed on the frame body (1), and swing arms (82) are respectively hinged on both sides of the support (81). The free ends of the two swing arms (82) are hinged together with a compaction roller (83), and the bottom surface of the compaction roller (83) is used to contact the surface of the laid anti-crack tape.

6. The road crack sealing device according to claim 5, characterized in that, The swing arm (82) is L-shaped and includes a horizontal arm section hinged to the support (81) and an inclined arm section for mounting the compaction roller (83).

7. The road crack sealing device according to claim 6, characterized in that, A reinforcing crossbar (84) is connected between the corners of the two swing arms (82).

8. The road crack sealing device according to claim 6, characterized in that, An inclined tension spring (85) is connected between the support (81) and the horizontal arm section of the swing arm (82) to provide elastic downward pressure to the compaction roller (83).

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