Road crack pouring device for road construction

Abstract

The utility model relates to the technical field of road construction, in particular to a road crack pouring device for road construction. The device comprises a mounting plate, the upper end of the mounting plate is fixedly connected with a seat, the lower end of the mounting plate is connected with wheels, a bogie is rotationally connected in a through hole of the mounting plate, the top of the bogie is fixedly connected with a pedal, and the bottom of the bogie is movably connected with steering wheels; the control rod is fixedly connected to the upper end of the steering seat, the spray gun is connected to the lower end of the control rod, the spray gun is connected to the pipeline, the pipeline is connected to the mounting plate, and the pipeline is fixedly connected with the discharge port. The device is simple in structure, an operator can sit for operation, the operator can be effectively prevented from bending down or squatting on the ground for a long time, lumbar muscle degeneration is relieved, labor intensity is reduced, the device can adapt to complex road conditions, joint filling quality is actively controlled, and the device is low in cost and convenient to use and popularize.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, specifically to a road crack sealing device for road construction. Background Technology

[0002] In road maintenance and construction, crack sealing is a key process to prevent water seepage into the road surface and delay structural damage.

[0003] Traditional crack sealing devices typically employ a handheld spray gun in conjunction with a trolley-type storage box, as described in patent CN212199998U. It includes a trolley, a fixed frame fixed to the top of the trolley base, a fan fixed to the bottom of the fixed frame, lifting wheels and a scraper fixed to the bottom of the trolley base, with the lifting wheels located on the outside of the scraper. A blower is fixed to the top of the trolley base above the scraper, a material box is fixed to the top of the fixed frame, a spray gun is hung on one side of the material box, and an air jet bar is fixed to the top of the nozzle end of the spray gun.

[0004] Although such devices achieve the basic function of material movement and transportation through the trolley structure, they still have the following significant defects: 1. The positioning of the spray gun relies on manual visual alignment, and the operator needs to maintain a low posture for a long time, which can easily cause muscle strain and lumbar spine diseases; 2. The scraper and lifting wheel of the existing trolley can only achieve flattening at a fixed height and cannot respond to road surface undulations or changes in crack depth in real time, resulting in structural defects of overfilling shallow cracks and underfilling deep cracks. Utility Model Content

[0005] To address the problems of existing road crack sealing devices requiring operators to bend over for extended periods, resulting in high labor intensity, lumbar muscle strain, and low efficiency, this utility model provides a road crack sealing device for road construction.

[0006] The technical solution adopted by this utility model is as follows: a road crack sealing device for road construction, including a mounting plate, a spray gun, and a material cylinder mounted on the mounting plate. A pair of wheels are connected and installed on the lower rear side of the mounting plate, and a seat is connected and installed on the upper part of the mounting plate. A vertical circular hole is opened on the mounting plate, and a bogie is rotatably connected and installed in the circular hole. A foot pedal is connected and installed on the top of the bogie, and a pair of steering wheels are connected and installed on the bottom front side of the bogie. A head column is fixedly connected to the middle position of the front end of the mounting plate, and a steering seat is rotatably connected and installed on the top of the head column. A control rod is connected and installed on the upper end of the steering seat. A crossbar is provided on the upper end of the control rod, and the lower end of the control rod is connected to the spray gun. The inlet end of the spray gun is connected to the outlet at the bottom of the material cylinder through a pipe. The operator sits in the seat, presses the pedals to rotate the bogie, which in turn rotates the steering wheels, thus controlling the forward direction of the device. The operator holds the control lever to control the left and right position of the spray gun, aiming it at the cracks in the ground and precisely filling them with filler. This way, the operator only needs to control the vehicle's forward direction and the position of the spray gun to complete the crack filling task, eliminating the need to bend over while holding the filling device. This greatly reduces the labor intensity of crack filling, lowers the incidence of lumbar muscle strain and other ailments among workers, and improves work efficiency.

[0007] Preferably, the control rod has a handle connected to both ends of the crossbar, a conduit fixedly connected to one side of the handle, a pull wire inside the conduit, a rectangular frame at the lower end of the control rod, a connecting rod connected to the rectangular frame, a boss at the top of the connecting rod, a wire hole at the front end of the boss for the pull wire to pass through, the end of the conduit connected to the upper end of the wire hole of the boss, and a valve body on the spray gun for controlling the discharge, with the end of the pull wire away from the handle connected to the valve body and able to control the opening and closing of the valve body.

[0008] Preferably, a pipe connector is installed at the lower end of the connecting rod, with one side of the pipe connector being detachably and sealed to the spray gun and the other side being detachably and sealed to the pipe.

[0009] Preferably, a support rod is connected and installed at the lower end of the pipe connector, and a pressure roller is rotatably connected to the lower end of the support rod. An adjusting spring is fitted on the support rod to provide elastic support to the rectangular frame and the pressure roller.

[0010] Preferably, the pipe is a corrugated flexible hose.

[0011] Preferably, the two wheels are connected by an axle, an axle housing is connected and installed on the lower side of the mounting plate, a shock-absorbing device, such as a shock-absorbing spring, is provided between the axle housing and the mounting plate, and a motor that is connected to the axle drive is connected and installed on the axle housing, and the motor is electrically connected to the throttle on the other side.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This road crack sealing device for road construction, through the cooperation of mounting plate, seat, bogie, pedal, control lever, throttle, pipe, motor, shock absorber, telescopic rod, pressure roller, adjusting spring and pull cable, allows manual operation of the device while seated to seal ground cracks. It eliminates the need for manual bending or squatting, reducing labor intensity, saving manpower, and improving work efficiency. The device has a simple structure, making it easy for operators to operate. It can effectively avoid the back and leg pain caused by operators standing or squatting for a long time, increasing the practicality and adaptability of the device. Moreover, the device has a low cost, making it easy to promote and use.

[0014] 2. By setting up a combination of telescopic rods, pressure rollers, adjusting springs and spray guns, it can respond to the undulations of the road surface in a timely manner when facing complex road conditions, maintain a fixed nozzle distance from the crack height, uniformly fill the crack with appropriate filler, and roll and flatten it. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 for Figure 1 Partial sectional view at point A in the middle;

[0018] Figure 3 This is a schematic diagram of the main structure of the bogie of this utility model.

[0019] In the diagram: 1. Mounting plate, 2. Material cylinder, 3. Spray gun, 4. Seat, 5. Wheel, 6. Bogie, 7. Foot pedal, 8. Steering wheel, 9. Head column, 10. Steering seat, 11. Control lever, 12. Pipe, 13. Throttle, 14. Conduit, 15. Pull cable, 16. Connecting rod, 17. Valve body, 18. Pipe connector, 19. Support rod, 20. Pressure roller, 21. Adjusting spring, 22. Shock absorber, 23. Motor. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0021] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and simplifying the description. Unless otherwise specified, these directional terms 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 limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Example 1:

[0024] As attached Figure 1-3 The road crack sealing device shown includes a mounting plate 1, a spray gun 3, and a material cylinder 2 mounted on the mounting plate 1. A pair of wheels 5 are rotatably connected to the lower rear side of the mounting plate 1. A seat 4, which can be adjusted in front, back, up, down, and backrest angle, is connected to the upper part of the mounting plate 1. A vertical circular hole is opened at the front of the mounting plate 1, and a bogie 6 is rotatably connected to the circular hole. The bogie 6 has an I-shaped structure. A pair of foot pedals 7 are rotatably connected to the top of the bogie 6. A pair of steering wheels 8 are rotatably connected to the front bottom of the bogie 6. A head post 9 is fixedly connected to the middle of the front end of the mounting plate 1. A steering seat 10 is rotatably connected to the top of the head post 9. A control rod 11 is connected to the upper end of the steering seat 10. A crossbar is provided at the upper end of the control rod 11. The lower end of the control rod 11 is connected to the spray gun 3. The inlet end of the spray gun 3 is connected to the bottom outlet of the material cylinder 2 through a pipe 12.

[0025] When using this device, after all preparations are complete, the operator can sit in seat 4, adjust to a comfortable driving position, place both feet on foot pedals 7, and rotate the steering frame 6 to drive the steering wheel 8 to control the forward direction of the device. Both hands hold the control lever 11 to control the left and right position of the spray gun 3. The sealant from the material cylinder 2 is sprayed from the nozzle of the spray gun 3 along the pipe 12 into the cracks. This device has a simple overall structure and is easy to use. It can accurately fill cracks in the ground, freeing sealant workers from the heavy labor of bending over while holding a sealant device, reducing the incidence of lumbar muscle strain and other diseases caused by prolonged bending, and improving the efficiency of completing road crack sealing tasks.

[0026] Example 2:

[0027] Further, based on Example 1, as shown in the appendix Figure 1-3 The road crack sealing device shown includes a mounting plate 1. A material cylinder 2 is located on the upper rear side of the mounting plate 1 for storing sealant and has heating and stirring functions. The specific structure is existing technology and will not be described in detail. It prevents the sealant from solidifying. An axle housing is connected to the lower rear side of the mounting plate 1 via a shock-absorbing spring 22 combined with a damper. A rotatable axle is located inside the axle housing. A pair of brake drums are connected to both sides of the axle and bolted to wheels 5, enabling the device to move and providing power and braking, facilitating speed control for the operator. The axle housing is connected to the mounting plate 1 via a support arm. A DC permanent magnet synchronous motor 23 is installed on the rear axle. The motor 23 is electrically connected to a right turn handle 13 via a controller. The motor 23 is connected to the rotating shaft via bevel gear meshing of the differential. Simultaneously, the spring damping and damper reduce bumps during the device's movement, improving operational accuracy and driver comfort, and increasing the device's service life.

[0028] A seat 4 is connected to the upper part of the mounting plate 1. A circular hole is opened at the center of the left side of the mounting plate 1, and a bogie 6 is rotatably connected and installed in the circular hole. The bogie 6 can rotate 30° to the left and right of the operator. A pair of foot pedals 7 are connected to the top two sides of the bogie 6, and a pair of steering wheels 8 are connected to the left and right ends of the bottom of the bogie 6. The distance between the two steering wheels 8 is more than 500mm. The operator does not need to stand or bend over to work. He / she can operate the device to move and turn while sitting on the seat 4, which reduces labor intensity and improves work efficiency. Controlling the steering angle can prevent the phenomenon of stepping into the air due to excessive turning angle. The wide gap between the steering wheels 8 can ensure that it will not press on the newly filled ground in front, causing damage, and can also improve support and enhance the stability of the device during movement.

[0029] A vertical head post 9 is connected to the center of the front end of the mounting plate 1. A steering seat 10 is rotatably connected to the head post 9. The steering seat 10 rotates 20° to the left and right of the driver. A slanted hollow tube is provided at the upper end of the steering seat 10. A control rod 11 is fixedly connected and installed in the hollow tube of the steering seat 10. A crossbar is provided at the upper end of the control rod 11. A rectangular groove is provided at the lower end of the control rod 11. Through holes are provided at both the upper and lower ends of the rectangular groove. A connecting rod 16 is connected and installed in the through hole at the upper end of the rectangular groove. The lower end of the connecting rod 16 is threadedly connected to the pipe connecting seat 18. The side of the pipe connecting seat 18 away from the mounting plate 1 is threadedly sealed to the spray gun 3, and the side closer to the mounting plate 1 is threadedly sealed to the pipe 12. The pipe 12 is fixedly connected to the mounting plate 1 by a buckle. The pipe 12 is threadedly connected to the outlet of the material cylinder 2. The operator manipulates the control lever 11 to rotate around the steering seat 10, facilitating the adjustment of the spray gun 3's position and ensuring the sealant is precisely injected into the floor gaps. Controlling the rotation angle of the steering seat 10 prevents the operator from losing balance and causing danger due to excessive rotation. The pipe connection is simple and secure, and the spray gun 3 and pipe 12 are detachable for easy maintenance and replacement. Furthermore, repairs can be made at the flow control valve in case of malfunction or blockage. The pipe 12 is a corrugated hose, which can be bent in any direction. The corrugated hose improves the flexibility of controlling the spray gun 3's position, enhances its resistance to fatigue damage, and increases its service life.

[0030] Specifically, two handles 13 are connected to both ends of the crossbar of the control lever 11. A conduit 14 is connected to the left handle 13, and a pull wire 15 is installed inside the conduit 14. The conduit 14 is fixedly connected to the control lever 11 by a buckle. A boss is provided on the top of the connecting rod 16, and a through hole is provided at the front end of the boss. The end of the conduit 14 is threaded to the through hole at the upper end of the boss, and the tension of the pull wire can be adjusted by a knob at this location. The pull wire 15 passes through the round hole and is fixedly connected to the valve body 17. The valve body 17 is connected and installed in the spray gun 3. A compression spring is sleeved on the pull wire 15 between the bottom end of the boss of the connecting rod 16 and the valve body 17. The operator pulls the pull wire 15 by rotating the left handle 13, which in turn pulls the valve body 17, controlling the flow of sealant. This allows for precise filling of the appropriate amount of sealant according to the size of the cracks in the road surface, avoiding excess sealant from polluting the road surface and reducing waste.

[0031] Specifically, a support rod 19 is connected and installed at the lower end of the pipe connector 18, and a rotatable pressure roller 20 is connected and installed at the lower end of the support rod 19. The pressure roller 20 is 300mm wide. An adjusting spring 21 is connected and installed between the bottom end of the rectangular frame of the control rod 11 and the pressure roller 20, and the adjusting spring 21 is sleeved on the support rod 19. The adjusting spring 21 provides a downward elastic force to the pressure roller 20. The larger width of the pressure roller 20 can compact and flatten the sealant filled by the spray gun 3 within the rotation angle range of the control rod 11. In addition, the pressure roller 20 can move up and down according to the undulation of the road surface, which drives the support rod 19 to move up and down, and then drives the pipe connector 18 to slide up and down in the rectangular groove, thereby driving the spray gun 3 to move up and down. It can actively adjust the distance between the spray gun 3 and the ground gap, preventing the spray gun from hitting the ground or being too far away from affecting the filling, and ensuring the consistency of the grouting quality.

[0032] The drive control circuit, braking system, and heated mixing cylinder are common existing technologies and will not be described in detail here.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. The scope of this invention is defined by the appended claims rather than the foregoing description; therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A road crack sealing device for road construction, comprising a mounting plate (1), a spray gun (3), and a material cylinder (2) mounted on the mounting plate (1), wherein a pair of wheels (5) are connected and mounted on the lower rear side of the mounting plate (1), characterized in that, A seat (4) is connected to the upper part of the mounting plate (1). A vertical circular hole is provided on the mounting plate (1). A bogie (6) is rotatably connected to the circular hole. A pair of foot pedals (7) are connected to the top of the bogie (6). A pair of steering wheels (8) are connected to the front side of the bottom of the bogie (6). A head post (9) is fixedly connected to the middle position of the front end of the mounting plate (1). A steering seat (10) is rotatably connected to the top of the head post (9). A control rod (11) is connected to the upper end of the steering seat (10). A crossbar is provided at the upper end of the control rod (11). The lower end of the control rod (11) is connected to the spray gun (3). The inlet end of the spray gun (3) is connected to the bottom outlet of the material cylinder (2) through the pipe (12).

2. The road crack sealing device for road construction according to claim 1, characterized in that, The control rod (11) has a handle (13) connected to both ends of the crossbar. One side of the handle (13) is fixedly connected to a conduit (14). The conduit (14) has a pull wire (15) inside. The lower end of the control rod (11) has a rectangular frame. A connecting rod (16) is connected to the rectangular frame. The top of the connecting rod (16) has a boss. The front end of the boss has a wire hole for the pull wire (15) to pass through. The end of the conduit (14) is connected to the upper end of the wire hole of the boss. The spray gun (3) has a valve body (17) for controlling the discharge. The end of the pull wire (15) away from the handle (13) is connected to the valve body (17) and can control the opening and closing of the valve body (17).

3. The road crack sealing device for road construction according to claim 2, characterized in that, The lower end of the connecting rod (16) is connected to a pipe connector (18). One side of the pipe connector (18) is detachably and sealed to the spray gun (3), and the other side is detachably and sealed to the pipe (12).

4. The road crack sealing device for road construction according to claim 1 or 3, characterized in that, The pipe (12) is a corrugated flexible hose.

5. The road crack sealing device for road construction according to claim 3, characterized in that, The lower end of the pipe connector (18) is connected to a support rod (19), and the lower end of the support rod (19) is rotatably connected to a pressure roller (20). An adjusting spring (21) is fitted on the support rod (19) and elastically supports the rectangular frame and the pressure roller (20).

6. The road crack sealing device for road construction according to claim 2, characterized in that, The two wheels (5) are connected by an axle. An axle housing is connected and installed on the lower side of the mounting plate (1). A shock-absorbing device is provided between the axle housing and the mounting plate (1). A motor (23) connected to the axle drive is connected and installed on the axle housing. The motor (23) is electrically connected to the throttle (13) on the other side.

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