Concrete pavement maintenance device

Abstract

A concrete pavement maintenance device belongs to the technical field of highway construction. The device solves the problems that the length of a drainage pipe of existing equipment is fixed and cannot be adjusted, so that the spraying range is fixed, and the spraying requirements of roads with different widths cannot be met. Comprising a movable base, a water tank, a conveying unit, a driving unit, a storage unit, two first spraying units and two second spraying units, the water tank, the driving unit and the storage unit are fixedly connected to the movable base, and horizontal movement of the first spraying units in the storage unit is achieved through the driving unit; each second spraying unit is fixedly mounted on the lower surface of the movable base corresponding to the first spraying unit, the first spraying units can expand and supplement the spraying range of the second spraying heads, the spraying range is dynamically adjusted according to the width of a road, the applicability is improved, the labor intensity of workers is reduced, and the working efficiency is improved. And the maintenance efficiency of the concrete road is greatly improved.

Description

Technical Field

[0001] The utility model relates to a concrete pavement maintenance device, belonging to the technical field of highway construction. Background Technique

[0002] A concrete pavement generally consists of four parts: subgrade, cushion, base course, and surface course. The main material of the surface course is concrete, which generally requires wear resistance, flatness, anti-slip property, high strength, etc. After the concrete pavement is built, water needs to be sprayed on the pavement to maintain the concrete pavement. At present, artificial spraying is used for concrete pavement maintenance, and problems such as low spraying efficiency and uneven spraying may occur during artificial spraying.

[0003] A humidity maintenance device for concrete pavement disclosed in the Chinese patent literature, publication number: (CN220724797U). One end of the water suction pipe of this patent far from the water pump is fixedly connected to the bottom of the front surface of the water storage bucket. The end of the water pump far from the water suction pipe is fixedly connected with a connecting pipe. The bottom end of the connecting pipe penetrates through the mobile trolley and is fixedly connected with a drainage pipe. Fixing plates are fixedly connected to both the left and right ends of the drainage pipe, and the tops of the two fixing plates are fixedly connected to the bottom of the mobile trolley. Spraying heads are equidistantly distributed at the bottom of the drainage pipe.

[0004] This device has the following defects: The length of the drainage pipe of the existing equipment is fixed and cannot be adjusted, resulting in a fixed spraying range and being unable to meet the spraying requirements of roads with different widths. When the road width is greater than the length of the drainage pipe, the staff needs to spray back and forth repeatedly. When the road width is not an integer multiple of the width of the drainage pipe, there will be overlapping spraying areas, which not only increases the labor intensity of the staff but also reduces the maintenance efficiency of the concrete road. Content of the Utility Model

[0005] The utility model is to solve the problem that the existing equipment cannot dynamically adjust the spraying range, and further provides a concrete pavement maintenance device.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] A concrete pavement maintenance device includes a mobile base, a water tank, a conveying unit, a driving unit, a storage unit, two first spraying units, and two second spraying units. The water tank, the driving unit, and the storage unit are fixedly connected to the mobile base. The first spraying unit is horizontally moved in the storage unit through the driving unit. Each second spraying unit is fixedly installed on the lower surface of the mobile base corresponding to the first spraying unit. The conveying unit includes a submersible pump and a conveying pipe. The submersible pump is fixedly installed inside the water tank. Both the first spraying unit and the second spraying unit are connected to the water outlet of the submersible pump through the conveying pipe.

[0008] Further, the driving unit includes a servo motor, a worm gear, a worm, a bidirectional lead screw, two support blocks, two threaded blocks, and two travel blocks. The servo motor is fixedly installed on the moving base. The output shaft of the servo motor is fixedly installed with a worm through a coupling. The worm gear is in transmission cooperation with the worm. The bidirectional lead screw passes through the center position of the worm gear. Both ends of the bidirectional lead screw are rotatably connected to the support blocks through bearings. The support blocks are fixedly connected to the moving base. Threaded blocks are threadedly connected to the bidirectional lead screw. The threaded blocks are fixedly connected with travel blocks. The travel blocks are fixedly connected to the first spraying unit.

[0009] Further, the first spraying unit includes a moving housing, a plurality of adjusting components, a plurality of water outlet pipes, and a plurality of first nozzles. The moving housing is a hollow cuboid structure. A plurality of adjusting components arranged in a straight line are movably inserted through the upper part of the moving housing. The water outlet pipes are fixedly connected to the bottom of the moving housing. The lower ends of the water outlet pipes are communicated and fixedly connected with the first nozzles. The water outlet pipes correspond to the adjusting components one by one and are all sleeved outside the adjusting components. The spraying and closing of the first spraying unit are realized by the rising and falling of the adjusting components in the water outlet pipes.

[0010] Further, the adjusting component includes a spherical surface extrusion ball, a movable rod, an annular sealing plug, a guide block, and a plurality of return springs. The spherical surface extrusion ball is fixedly connected to the upper end surface of the movable rod. The annular sealing plug is fixedly connected to the middle position of the movable rod. The guide block is fixedly connected to the bottom end of the movable rod. A return spring is fixedly connected between the spherical surface extrusion ball and the upper surface of the moving housing.

[0011] Further, the second spraying unit includes a shunt block and a second nozzle. The shunt block is fixedly connected to the lower surface of the moving base. The second nozzle is communicated and fixedly connected to the shunt block.

[0012] Further, the upper surface of each water outlet pipe is flush with the inner bottom surface of the moving housing.

[0013] Further, the storage unit includes two storage sleeves and two inclined surface extrusion plates. The storage sleeves are symmetrically arranged along the conveying pipe and fixed on the moving base. The storage sleeves are hollow cuboid structures. The inclined surface extrusion plates are fixedly connected to the upper side surfaces of the storage sleeves far from the conveying pipe and are arranged obliquely upward. When the first spraying unit is movably inserted into the storage unit, the top of each spherical surface extrusion ball contacts the inner upper surface of the storage sleeve and the return spring is in a compressed state.

[0014] Further, a travel groove is formed on the side surface of the storage sleeve. The travel block passes through the travel groove and is fixedly connected to the end surface of the moving housing close to the worm gear.

[0015] Further, a travel groove is formed on the side surface of the storage sleeve close to the water tank. The travel block passes through the travel groove and is fixedly connected to the end of the moving housing far from the inclined surface extrusion plate.

[0016] Further, the conveying unit further includes two shunt pipes and two corrugated pipes. The shunt pipes are symmetrically distributed along the conveying pipe. One end of each shunt pipe is connected to the conveying pipe, and the other end of each shunt pipe is connected to a corrugated pipe. A first through hole is formed at the center of the side surface of the receiving sleeve close to the conveying pipe, and the other end of the corrugated pipe passes through the first through hole and is connected to the moving housing.

[0017] Further, a plurality of self-locking universal wheels are movably connected to the lower surface of the moving base, and a push handle is fixedly connected to the moving base.

[0018] The utility model has the following effects compared with the prior art:

[0019] In this application, the driving unit is used to adjust the extension and retraction of the first spraying unit. The first spraying unit located in the receiving unit can be fully extended or stop extending at any position during the extension process, greatly realizing the dynamic adjustment of the spraying range according to the road width. Furthermore, there will be no repeated spraying areas, improving the applicability, greatly reducing the intensity of manual labor, and significantly improving the maintenance efficiency of concrete roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 is a partial sectional view of the utility model;

[0022] Figure 3 is a three-dimensional schematic diagram of the driving unit of the utility model;

[0023] Figure 4 is a three-dimensional schematic diagram of the receiving unit of the utility model;

[0024] Figure 5 is a three-dimensional schematic diagram of the first spraying unit of the utility model;

[0025] Figure 6 is a three-dimensional schematic diagram of the adjusting assembly of the utility model.

[0026] In the figure: 1, moving base; 2, self-locking universal wheel; 3, receiving sleeve; 4, inclined surface pressing plate; 5, travel groove; 6, support block; 7, bidirectional lead screw; 8, worm gear; 9, worm; 10, servo motor; 11, threaded block; 12, travel block; 13, moving housing; 14, water outlet pipe; 15, first spray head; 16, guide block; 17, movable rod; 18, annular sealing plug; 19, arc surface pressing ball; 20, return spring; 21, water tank; 22, submersible pump; 23, conveying pipe; 24, shunt block; 25, second spray head; 26, shunt pipe; 27, corrugated pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0028] The embodiments of the present utility model will be described below according to its overall structure.

[0029] A concrete pavement maintenance device includes a moving base 1, a water tank 21, a conveying unit, a driving unit, a storage unit, two first spraying units and two second spraying units. The water tank 21, the driving unit and the storage unit are fixedly connected to the moving base 1. The first spraying unit is horizontally moved in the storage unit through the driving unit. Each second spraying unit is fixedly installed on the lower surface of the moving base corresponding to the first spraying unit. The conveying unit includes a submersible pump 22 and a conveying pipe 23. The submersible pump 22 is fixedly installed inside the water tank 21. The first spraying unit and the second spraying unit are both connected to the water outlet of the submersible pump 22 through the conveying pipe 23.

[0030] In this application, the driving unit is used to adjust the extension and storage of the first spraying unit. The first spraying unit located in the storage unit can be fully extended or stop extending at any position during the extension process, which greatly realizes the dynamic adjustment of the spraying range according to the road width. Therefore, there will be no overlapping spraying areas, improving the applicability, greatly reducing the labor intensity, and significantly improving the maintenance efficiency of the concrete road.

[0031] The driving unit includes a servo motor 10, a worm gear 8, a worm 9, a bidirectional lead screw 7, two support blocks 6, two threaded blocks 11 and two travel blocks 12. The servo motor 10 is fixedly installed on the moving base 1. The output shaft of the servo motor 10 is fixedly installed with a worm 9 through a coupling. The worm gear 8 is in transmission cooperation with the worm 9. The bidirectional lead screw 7 passes through the center position of the worm gear 8. Both ends of the bidirectional lead screw 7 are rotatably connected to the support blocks 6 through bearings. The support blocks 6 are fixedly connected to the moving base 1. The bidirectional lead screw 7 is threadedly connected with the threaded blocks 11. The threaded blocks 11 are fixedly connected with the travel blocks 12. The travel blocks 12 are fixedly connected to the first spraying unit. The servo motor 10 provides power for the rotation of the worm 9. The worm 9 and the worm gear 8 have a self-locking characteristic to prevent the bidirectional lead screw 7 from rotating automatically under the action of external force. The support blocks 6 provide support for the rotation of the bidirectional lead screw 7. The rotation of the bidirectional lead screw drives the horizontal movement of the threaded blocks 11, and the horizontal movement of the threaded blocks 11 is used to control the extension and storage of the first spraying unit in the horizontal direction.

[0032] The first spraying unit includes a moving housing 13, a plurality of adjusting components, a plurality of water outlet pipes 14, and a plurality of first spray heads 15. The moving housing 13 is a hollow cuboid structure. A plurality of adjusting components arranged in a straight line are movably installed through the upper part of the moving housing 13. The water outlet pipes are fixedly connected to the bottom of the moving housing 13. The lower ends of the water outlet pipes 14 are communicated and fixedly connected to the first spray heads 15. The water outlet pipes 14 correspond to the adjusting components one by one and are all sleeved outside the adjusting components. The water flow of the first spray heads is distributed by the moving housing, and the spraying and closing of the first spraying unit are realized by the rising and falling of the adjusting components in the water outlet pipes.

[0033] The adjusting component includes a spherical surface extrusion ball 19, a movable rod 17, an annular sealing plug 18, a guide block 16, and a plurality of return springs 20. The spherical surface extrusion ball 19 is fixedly connected to the upper end surface of the movable rod 17. The annular sealing plug 18 is fixedly connected to the middle position of the movable rod 17. The guide block 16 is fixedly connected to the bottom end of the movable rod 17. A return spring 20 is fixedly connected between the spherical surface extrusion ball 19 and the upper surface of the moving housing 13. The adjusting component adjusts the spraying and sealing states of the first spraying unit through the return spring 20. When the return spring 20 is in an extended state, the annular sealing plug 18 is separated from the water outlet pipe 14. At this time, the first spraying unit is in a spraying state, and the water in the moving housing 13 flows into the water outlet pipe 14 and is sprayed onto the concrete surface through the first spray head 15. When the return spring 20 is completely compressed, the annular sealing plug 18 is located in the water outlet pipe 14. At this time, the first spraying unit is in a closed state. The guide block 16 guides the lifting of the adjusting component. Specifically, the guide block 16 is a hollow structure. The hollow structure not only facilitates the water flow to reach the first spray head through the adjusting component for spraying; the hollow structure can also reduce its own weight and facilitate the rising of the adjusting component.

[0034] The second spraying unit includes a flow dividing block 24 and a plurality of second spray heads 25. The flow dividing block 24 is fixedly connected to the lower surface of the moving base 1. A plurality of second spray heads 25 distributed in a linear array are communicated and fixedly connected to the flow dividing block 24. The water flow of the second spray heads is distributed by the flow dividing block. The second spray head is a basic spraying device. When the spraying width of the second spraying unit is less than the road surface width, it is supplemented by the first spraying unit.

[0035] The upper surface of each water outlet pipe 14 is flush with the inner bottom surface of the moving housing 13. The upper surface of the water outlet pipe 14 being flush with the inner bottom surface of the moving housing 13 is to enable all the water in the moving housing 13 to flow out through the water outlet pipe 14 and avoid water accumulation inside the moving housing 13.

[0036] The storage unit includes two storage sleeves 3 and two inclined extrusion plates 4. The storage sleeves 3 are symmetrically arranged along the conveying pipe 23 and fixed on the moving base 1. The storage sleeve 3 is a hollow cuboid structure. The inclined extrusion plate 4 is fixedly connected to the upper side of the storage sleeve 3 away from the conveying pipe 23 and is arranged obliquely upward. When the first spraying unit is movably inserted into the storage unit, the top of each arc-shaped extrusion ball 19 contacts the inner upper surface of the storage sleeve 3 and the return spring 20 is in a compressed state. The storage sleeve plays a role in storing the first spraying unit. The process of storing the first spraying unit is the process in which the return spring 20 changes from an extended state to a compressed state. The upward inclined arrangement provides a transition plane for the movement of the inclined extrusion ball 4, so that the return spring 20 is gradually compressed. When the top of the inclined extrusion ball 4 contacts the inner upper surface of the storage sleeve, the return spring 20 is in a fully compressed state. At this time, the adjustment component is in the water outlet pipe, realizing the control of the sealing state of the first spraying unit.

[0037] The arrangement order of the upper surface of the moving base 1 along the water flow direction is the push handle, the water tank 21, the servo motor 10, the support block 6 and the storage sleeve 3.

[0038] A travel groove 5 is opened on the side surface of the storage sleeve 3, and the travel block 12 passes through the travel groove 5 and is fixedly connected to the end of the moving housing 13 close to the worm gear. The movement of the threaded block 11 is transmitted to the moving housing 13 through the travel block 12, so that the moving housing 13 and the threaded block 11 move synchronously, thereby realizing the storage and extension of the first spraying unit in the storage unit.

[0039] The conveying unit further includes two shunt pipes 26 and two corrugated pipes 27. The shunt pipes 26 are symmetrically distributed along the conveying pipe 23. One end of the shunt pipe 26 is connected to the conveying pipe 23, and the other end of the shunt pipe 26 is connected to the corrugated pipe 27. A first through hole is opened at the central position of the side surface of the storage sleeve 3 close to the conveying pipe 23, and the other end of the corrugated pipe 27 passes through the first through hole and is connected to the moving housing. The corrugated pipe 27 has the characteristic of expansion and contraction, and can be stretched and contracted along with the movement of the first spraying unit, ensuring that the conveying pipe 23 and the first spraying unit are always in a connected state. During maintenance, the second nozzle 25 is preferably used to maintain the concrete road surface. When the spraying range of the second nozzle 25 is smaller than the road surface width, the spraying range of the second nozzle 25 is enlarged and supplemented by the first spraying unit.

[0040] A plurality of self-locking universal wheels 2 are movably connected to the lower surface of the moving base 1, and a push handle is fixedly connected to the moving base 1. The moving base provides a placement platform for the parts. By setting the push handle, a holding space is provided for the staff, and the self-locking universal wheels 2 facilitate the movement of the device.

[0041] A concrete pavement maintenance device of the present utility model will be described below with the case where the spraying range of the second nozzle 25 is smaller than the width of the pavement and the first spraying unit is required to supplement the spraying range. The specific working steps are as follows:

[0042] Start the servo motor 10 to drive the worm 9 to rotate clockwise. The rotation of the worm 9 drives the double lead screw 7 to rotate through the meshing worm wheel 8. The rotation of the double lead screw 7 drives the threaded block 11 to rotate. The two threaded blocks 11 move towards each other through the limitation of the travel groove 5 and the travel block 12, thereby driving the moving housing 13 to move. The stretching property of the corrugated pipe 27 is used to cooperate with the movement of the moving housing 13. When the arc surface extrusion balls 19 all move to the edge position of the arc surface extrusion plate, the adjusting assembly rises under the action of the return spring 20. Specifically, the movable rod 17 drives the annular sealing plug 18 to rise, and the annular sealing plug 18 is separated from the water outlet pipe 14;

[0043] When the moving housing 13 extends to the edge of the concrete pavement, the servo motor 10 stops working. At this time, start the submersible pump 22. The submersible pump 22 conveys the water in the water tank 21 to the inside of the flow dividing block 24 through the delivery pipe 23, and then sprays it out through a plurality of second nozzles 25. At the same time, the water is conveyed from the delivery pipe 23 to the inside of the moving housing 13 through the cooperation of the flow dividing pipe 26 and the corrugated pipe 27, and then sprays out through the water outlet pipe 14 and the first nozzle 15.

[0044] When the width of the pavement is smaller than the extended width of the first spraying unit, some of the first nozzles are inside the receiving sleeve 3. Under the sealing of the annular sealing plug 18, the first nozzles inside cannot connect the moving housing 13 and the water outlet pipe 14. Therefore, the first nozzles 15 inside the receiving sleeve 3 cannot spray. At this time, the staff moves and sprays through the push handle in cooperation with the self-locking universal wheels 2;

[0045] After spraying, turn off the submersible pump 22, and at the same time start the servo motor 10 to drive the worm 9 to rotate counterclockwise. The worm 9 drives the double lead screw 7 to rotate in the reverse direction through the meshing worm wheel 8, thereby driving the threaded blocks 11 to move relative to each other. The first spraying unit is received through the travel block 12. During the receiving process of the moving housing 13, the inclined surface extrusion plate 4 squeezes the top of the arc surface extrusion ball 19, thereby gradually compressing the return spring 20. At this time, the movable rod 17 also descends accordingly. When the top of the arc surface extrusion ball 19 contacts the inner upper surface of the receiving sleeve 3, the return spring 20 is completely compressed. The adjusting assembly is inserted into the water outlet pipe 14. At this time, the first spraying unit is completely received into the receiving unit and is in a closed state.

[0046] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A concrete pavement maintenance device, characterized in that: The invention comprises a mobile base (1), a water tank (21), a conveying unit, a driving unit, a storage unit, two first spraying units and two second spraying units. The water tank (21), the driving unit and the storage unit are fixedly connected to the mobile base (1). The first spraying unit is horizontally moved in the storage unit by the driving unit. Each second spraying unit is fixedly mounted on the lower surface of the mobile base corresponding to the first spraying unit. The conveying unit comprises a submersible pump (22) and a conveying pipe (23). The submersible pump (22) is fixedly mounted in the water tank (21). The first spraying unit and the second spraying unit are connected to the water outlet of the submersible pump (22) via the conveying pipe (23).

2. A concrete pavement maintenance device according to claim 1, characterized in that: The driving unit comprises a servo motor (10), a worm wheel (8), a worm (9), a bidirectional screw (7), two support blocks (6), two threaded blocks (11) and two travel blocks (12); the servo motor (10) is fixedly mounted on the mobile base (1); the output shaft of the servo motor (10) is fixedly mounted with the worm (9) via a coupling; the worm wheel (8) and the worm (9) cooperate for transmission; the bidirectional screw (7) passes through the center of the worm wheel (8); both ends of the bidirectional screw (7) are rotatably connected to the support block (6) via bearings; the support block (6) is fixedly connected to the mobile base (1); the bidirectional screw (7) is threadedly connected with the threaded block (11); the threaded block (11) is fixedly connected with the travel block (12); and the travel block (12) is fixedly connected to the first spraying unit.

3. A concrete pavement maintenance device according to claim 2, characterized in that: The first spraying unit comprises a movable shell (13), a plurality of adjustment components, a plurality of water outlet pipes (14) and a plurality of first spray heads (15); the movable shell (13) is a hollow rectangular parallelepiped structure; a plurality of adjustment components arranged in a straight line are movably mounted on the upper part of the movable shell (13); the water outlet pipes are fixedly connected to the bottom of the movable shell (13); the lower ends of the water outlet pipes (14) are connected to the fixedly connected first spray heads (15); the water outlet pipes (14) correspond to the adjustment components one by one and are both mounted on the outer sides of the adjustment components; the spraying and closing of the first spraying unit are realized by the rising and falling of the adjustment components in the water outlet pipes.

4. A concrete pavement maintenance device according to claim 3, characterized in that: The adjustment component comprises an arc-surface extrusion ball (19), a movable rod (17), an annular sealing plug (18), a guide block (16) and a plurality of return springs (20); the arc-surface extrusion ball (19) is fixedly connected to the upper end surface of the movable rod (17); the annular sealing plug (18) is fixedly connected to the middle position of the movable rod (17); the guide block (16) is fixedly connected to the bottom end of the movable rod (17); and the return spring (20) is fixedly connected between the arc-surface extrusion ball (19) and the upper surface of the movable housing (13).

5. A concrete pavement maintenance device according to claim 1, characterized in that: The second spraying unit comprises a diverter block (24) and a plurality of second spray heads (25); the diverter block (24) is fixedly connected to the lower surface of the movable base (1); and the plurality of second spray heads (25) distributed in a linear array are connected and fixedly connected to the diverter block (24).

6. A concrete pavement maintenance device according to claim 3, characterized in that: The upper surface of each water outlet pipe (14) is flush with the inner bottom surface of the movable housing (13).

7. A concrete pavement maintenance device according to claim 4, characterized in that: The storage unit comprises two storage sleeves (3) and two inclined extrusion plates (4); the storage sleeves (3) are symmetrical along the conveying pipe (23) and fixed on the movable base (1); the storage sleeves (3) are hollow rectangular parallelepiped structures; the inclined extrusion plates (4) are fixedly connected to the upper side of the storage sleeve (3) away from the conveying pipe (23) and arranged to be tilted upward; when the first spraying unit is movably inserted in the storage unit, the top of each arc-surface extrusion ball (19) contacts the inner upper surface of the storage sleeve (3) and the return spring (20) is in a compressed state.

8. A concrete pavement maintenance device according to claim 7, characterized in that: A travel groove (5) is formed on the side of the receiving sleeve (3), and the travel block (12) passes through the travel groove (5) and is fixedly connected to the end of the moving housing (13) close to the worm gear.

9. A concrete pavement maintenance device according to claim 7, characterized in that: The conveying unit further comprises two shunt pipes (26) and two bellows (27); the shunt pipes (26) are symmetrically distributed along the conveying pipe (23); one end of the shunt pipe (26) is connected to the conveying pipe (23); the other end of the shunt pipe (26) is connected to the bellows (27); a first through hole is opened at the center position of the side of the receiving sleeve (3) close to the conveying pipe (23); the other end of the bellows (27) passes through the first through hole and is connected to the movable housing.

10. A concrete pavement maintenance device according to claim 1, characterized in that: The lower surface of the movable base (1) is movably connected to a plurality of self-locking universal wheels (2), and a push handle is fixedly connected to the movable base (1).

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