Inspection well covering device for asphalt paving

Abstract

The utility model discloses an inspection well covering device during asphalt paving, which comprises a shielding plate and a cushion block connected to the bottom surface of the shielding plate, and a rotatable lifting handle is arranged on the top surface of the shielding plate; the bottom face of the shielding plate is provided with a positioning frame assembly matched with the inner edge of an inspection well mouth. The utility model has the beneficial effects that through the shielding plate and the cushion block connected to the bottom surface of the shielding plate, the well mouth of the inspection well is shielded, the height of the shielding plate can be adjusted by adjusting the height of the cushion block so as to ensure that the height of the shielding plate is at the height required by asphalt paving, and the positioning frame assembly is matched with the inner edge of the well mouth of the inspection well so as to ensure that asphalt is paved. The positioning of the curtain board is realized, and the combination of the cushion block and the positioning assembly realizes that the curtain board is stable and does not shake and cannot be pushed away by the pushing force of asphalt.

Description

Technical Field

[0001] The utility model belongs to the technical field of municipal road asphalt paving auxiliary devices, in particular to a manhole covering device during asphalt paving. Background Art

[0002] When paving asphalt at the inspection wells of municipal roads, the usual practice is to use protective shields to protect the wellheads when paving the lower layer of asphalt. After paving is completed, the inspection wells are lifted a second time, the manhole covers are installed, and finally the upper layer of asphalt is paved.

[0003] This practice causes the protective shield covering the wellhead to be easily dragged and displaced during the asphalt paving process, causing asphalt to leak into the well; when using the inspection manhole cover for protection, the manhole cover is squeezed and damaged; after the inspection well is lifted for the second time, the manhole cover is easily displaced and sunk during paving and rolling, and after the road is opened to traffic, which leaves defects and hidden dangers in the project and also affects driving comfort.

[0004] A simple protective shield cannot be fixed when covering the manhole opening. When asphalt is paved, the pushing force of the asphalt driven by the paver can easily carry away the protective shield. Since the paver tracks are subjected to the pressure of the lifting carriage of the asphalt transport vehicle and the characteristics of concentrated force, the pressure of the tracks rolling on the manhole cover is very large, and the contact area under the manhole cover is small, which will damage the manhole cover. After the lower layer of asphalt is paved, the upper layer will continue to be paved. The masonry and mortar raised by the manhole have a short curing time and insufficient strength, which can easily cause the manhole cover to shift and sink during paving and rolling and after the road is opened to traffic.

[0005] However, in solving the above problems, the existing technology uses bamboo plywood as a shield protection, and uses square wood to reinforce the bottom, which will cause the shield to be thickened as a whole, affecting the asphalt paving; when using finished manhole covers for protection, the height of the manhole chamber is not well controlled, and the manhole cover is installed too high, and the paving machine will drag the manhole cover away. Summary of the Invention

[0006] The purpose of the embodiment of the utility model is to provide a manhole covering device for asphalt paving, aiming to solve the technical problems in the prior art of using bamboo plywood as a shield for protection, and using square wood to reinforce the bottom, which will cause the overall thickening of the shield, affecting the asphalt paving; using a finished manhole cover for protection, the height of the well chamber is not well controlled, the manhole cover is installed too high, and the paving machine drags away the manhole cover.

[0007] The utility model embodiment is achieved as follows:

[0008] A covering device for an inspection well during asphalt paving comprises a shield and a pad connected to the bottom surface of the shield. A rotatable handle is provided on the top surface of the shield. The bottom surface of the shield is provided with a positioning frame assembly that cooperates with the inner edge of the inspection well mouth.

[0009] Furthermore, the outer diameter of the shield is larger than the inner diameter of the inspection well, and a plurality of pads are provided and evenly distributed around the circumference of the bottom surface of the shield.

[0010] Furthermore, the pad is made of rubber and is bonded to the bottom of the shield.

[0011] Furthermore, the pad is a rubber block threadedly connected to the shield, with bolts vulcanized or penetrated inside the rubber block, and the portion of the bolt exposed outside the rubber block is threadedly connected to the threaded hole at the bottom of the shield.

[0012] Furthermore, the handles are a pair and are symmetrically arranged on the top surface of the baffle; the handles include a hanging ring, a lifting rod and a limit nut; the hanging ring is a U-shaped ring, and the open ends of the two hanging rings are symmetrically fixed on the top surface of the baffle; the diameters of both ends of the lifting rod are smaller than the inner diameter of the hanging ring, and both ends of the lifting rod are processed with external threads that match the limit nut; the two ends of the lifting rod pass through the hanging ring respectively, and the limit nut is threadedly matched at the end part passing through the hanging ring; the diameter of the limit nut is larger than the inner diameter of the hanging ring.

[0013] Furthermore, the positioning frame assembly is divided into four groups and distributed in a circular array at the lower end of the baffle; the positioning frame assembly includes a fixed joint, a movable joint, a round rod, a positioning plate, a first positioning screw, a positioning block and a second positioning screw; the fixed joints are a pair and are fixedly arranged at intervals on the bottom surface of the baffle; the movable joint is located between the fixed joints, and the movable joint and the fixed joint are hinged by a rotating shaft; one end of the round rod is fixedly connected to the end of the movable joint away from the baffle.

[0014] The positive effects of the present invention are: the manhole opening is covered by the shield and the pad connected to the bottom surface of the shield, and the height of the shield can be adjusted by adjusting the height of the pad to ensure that the height of the shield is at the required height for asphalt paving, and the positioning frame assembly cooperates with the inner edge of the manhole opening to realize the positioning of the shield, and the combination of the pad and the positioning assembly ensures that the shield is stable and does not shake, and will not be pushed away by the pushing force of the asphalt; when paving asphalt, the covering device is not dragged and displaced by the paver and the flatness of the asphalt paving around the well is guaranteed; after the asphalt lower layer is paved, the manhole cover can be quickly installed without raising the well wall, and the upper layer can be quickly paved after installation, which improves the connection efficiency between processes and shortens the asphalt paving cycle; the height of the manhole chamber is built to the designed elevation at one time to avoid secondary lifting, which causes waste of cost and construction time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a manhole covering device for asphalt paving according to the utility model;

[0016] Figure 2 yes Figure 1 The front view of the asphalt paving inspection well covering device of the utility model in the working state is shown in FIG;

[0017] Figure 3 yes Figure 2 The left side view of the asphalt paving inspection well covering device of the utility model is shown in FIG;

[0018] Figure 4 yes Figure 2 A bottom view of a device for covering an inspection well during asphalt paving according to the present invention is shown in FIG.

[0019] Figure 5 This is a front view of the utility model of an inspection well covering device in a retracted state during asphalt paving;

[0020] Figure 6 yes Figure 5 The left side view of the utility model of the inspection well covering device for asphalt paving in the retracted state is shown;

[0021] Figure 7 A schematic diagram of the application and assembly of a manhole covering device for asphalt paving according to the utility model;

[0022] Legend: 1—shield, 2—spacer, 3—handle, 31—hanging ring, 32—lifting rod, 33—limit nut, 4—positioning frame assembly, 41—fixed joint, 42—movable joint, 43—round rod, 44—positioning plate, 45—first positioning screw, 46—positioning block, 47—second positioning screw, 8—well chamber, 9—asphalt bottom layer. DETAILED DESCRIPTION

[0023] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments:

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

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

[0026] like Figures 1 to 7The figure shows a structural diagram of an inspection well covering device for asphalt paving provided by an embodiment of the utility model, which includes a shield and a pad connected to the bottom surface of the shield, and a rotatable handle is provided on the top surface of the shield; the bottom surface of the shield is provided with a positioning frame assembly that cooperates with the inner edge of the inspection well mouth.

[0027] In the embodiment of the present utility model, the manhole opening is covered by the shield plate and the pad connected to the bottom surface of the shield plate, and the height of the shield plate can be adjusted by adjusting the height of the pad to ensure that the height of the shield plate is at the required height for asphalt paving. The positioning frame assembly cooperates with the inner edge of the manhole opening to achieve the positioning of the shield plate. The combination of the pad and the positioning assembly ensures that the shield plate is stable, does not shake, and will not be pushed away by the pushing force of the asphalt.

[0028] Specifically, such as Figures 1 to 7 A device for covering an inspection well during asphalt paving comprises a shield 1, a pad 2, a handle 3 and a positioning frame assembly 4.

[0029] The outer diameter of the shield 1 is larger than the inner diameter of the inspection well, and the shield 1 is preferably a circular hot-rolled steel plate.

[0030] There are several pads 2, which are evenly distributed around the circumference of the bottom surface of the shield;

[0031] The pads 2 are preferably made of rubber, bonded to the bottom of the shield 1, and distributed in a circular array at the bottom of the shield 1. The pads 2 are used to improve the working stability of the shield 1 and ensure that the shield 1 is stable and does not shake.

[0032] The pad 2 is preferably a rubber block threadedly connected to the baffle 1, with bolts vulcanized or penetrated inside the rubber block, and the part of the bolt exposed outside the rubber block is threadedly connected to the threaded hole at the bottom of the baffle 1. When the height of the baffle 1 and the ground needs to be adjusted, it can be achieved by rotating the bolt.

[0033] The handles 3 are a pair and are symmetrically arranged on the top surface of the baffle 1. The handles 3 include a hanging ring 31, a lifting rod 32 and a limiting nut 33. The hanging ring 31 is a U-shaped ring, and the open end of the hanging ring 31 is welded to the top surface of the baffle 1; the hanging ring 31 is a pair and is symmetrically distributed on the top surface of the baffle 1. The diameters of the two ends of the lifting rod 32 are smaller than the inner diameter of the hanging ring 31, and the two ends of the lifting rod 32 are processed with external threads that match the limiting nut 33; the two ends of the lifting rod 32 pass through the hanging ring 31 respectively, and the end passing through the hanging ring 31 is threadedly engaged with the limiting nut 33; the diameter of the limiting nut 33 is larger than the inner diameter of the hanging ring 31. The handle 3 adopts a rotating structure, and the lifting rod 32 rotates by rotating its two ends in the hanging ring 31; the limiting nut 33 is used to prevent the lifting rod 32 from falling off from the hanging ring 31 on the one hand, and on the other hand, it adopts a threaded engagement to facilitate the disassembly and replacement of the lifting rod 32 during later maintenance. When the asphalt lower layer is being paved, the lifting rod 32 is rotated and placed parallel to the top surface of the shield 1 so that the height of the lifting rod 32 does not affect the asphalt paving; after the asphalt lower layer is paved and rolled, the construction personnel use the lifting rod 32 to lift the covering device of the utility model from the inspection well mouth.

[0034] There are four groups of positioning frame assemblies 4, which are distributed in a circular array at the bottom of the shield 1. The specific size is customized according to the inner diameter of the inspection well to be constructed. The positioning frame assembly 4 includes a fixed joint 41, a movable joint 42, a round rod 43, a positioning plate 44, a first positioning screw 45, a positioning block 46 and a second positioning screw 47. The fixed joints 41 are a pair, welded at intervals at the bottom of the shield 1. The movable joint 42 is located between the fixed joints 41, and the movable joint 42 and the fixed joint 41 are hinged by a rotating shaft. One end of the round rod 43 is welded to the end of the movable joint 42 away from the shield 1. The positioning plate 44 is welded to the bottom of the shield 1 and is located on the side of the fixed joint 41 close to the center of the shield 1, which does not affect the round rod 43 fitting the inner wall of the inspection well. A first positioning screw 45 is threadedly engaged on the positioning plate 44. A through-hole threaded hole that cooperates with the first positioning screw 45 is provided on the fixed joint 41 near the positioning plate 44. A blind-hole threaded hole that cooperates with the first positioning screw 45 is provided on one side of the movable joint 42. When the positioning frame assembly 4 is in operation, the positioning plate 44, the fixed joint 41, and the movable joint 42 are fixed together by the first positioning screw 45. At this time, the round rod 43 and the shield 1 are arranged perpendicularly. The function of the round rod 43 is that after the utility model covers the manhole opening, the round rod 43 fits against the inner wall of the manhole and can limit the movement of the shield 1, preventing the shield 1 from being dragged and displaced during the asphalt lower layer paving operation. The positioning block 46 is welded to the end of the round rod 43 away from the movable joint 42. A second positioning screw 47 is threadedly engaged on the positioning block 46. A blind-hole threaded hole that cooperates with the second positioning screw 47 is provided at the bottom of the shield 1. When the positioning frame assembly 4 is in the storage state, the positioning block 46 and the shield 1 are fixed together by the second positioning screw 47. At this time, the round rod 43 is distributed in parallel at the bottom of the shield 1, taking up little space and being easy to store.

[0035] The specific usage and function of this embodiment are as follows:

[0036] Before the asphalt paving operation, the height of the inspection well chamber 8 needs to be built to the designed elevation at one time, and then the covering device of the present invention is used. If the round rod 43 is in the storage state at this time, first twist the second positioning screw 47 to disengage the second positioning screw 47 from the threaded hole at the bottom of the shield 1, and then rotate the round rod 43 to a position perpendicular to the shield 1, and then twist the first positioning screw 45 to make the first positioning screw 45 enter the threaded hole of the movable joint 42 and tighten it. At this time, the movable joint 42, the positioning plate 44 and the fixed joint 41 are fixed together, and the round rod 43 cannot rotate, and enters the working state. Next, manually cover the inspection well mouth with the present invention through the handle 3. At this time, the positioning frame assembly 4 is located in the inspection well, the round rod 43 is in contact with the inner wall of the inspection well chamber 8, and the pad 2 is located above the inspection well chamber 8. After the covering of the present invention is completed, rotate the handle 3, and place the handle 3 parallel to the top surface of the shield 1, and then the paving operation of the asphalt lower layer 9 can be carried out. After the paving operation of the asphalt lower layer 9 is completed, the asphalt material on the shield 1 is manually removed in time while it is still hot, and the joints are cleaned neatly along the periphery of the shield 1; after the cleaning is completed, the covering device of the utility model is manually lifted out of the inspection well by the handle 3, and the taken-out covering device of the utility model can be circulated to the inspection well in front of the paver for recycling; and after the work of the covering device of the utility model is completed, the first positioning screw 45 is twisted to disengage the first positioning screw 45 from the threaded hole of the movable joint 42, and then the round rod 43 is rotated to a position parallel to the shield 1, and then the second positioning screw 47 is twisted to make the second positioning screw 47 enter the threaded hole at the bottom of the shield 1 and tightened, at this time the round rod 43 and the shield 1 are fixed together, the round rod 43 cannot rotate, and enters the storage state, and then the covering device of the utility model can be stored. After the asphalt lower layer 9 has cooled, the finished inspection well cover is manually coaxially covered on the inspection well mouth, and then the asphalt upper layer can be paved and compacted. During the operation, the top surface of the finished inspection well cover must be flush with the top surface of the asphalt upper layer; after the asphalt upper layer is paved and compacted, the asphalt material on the finished inspection well cover is manually removed in time before the asphalt upper layer cools down, and the joints along the periphery of the finished inspection well cover are cleaned neatly.

[0037] From the above, it can be seen that compared with the traditional construction plan, the construction plan of the utility model changes the secondary heightening of the inspection well wall to a one-time heightening, which not only avoids the phenomenon of sinking and deformation during paving, realizes barrier-free paving and rolling without dead angles, ensures the flatness of the asphalt paving around the well, but also improves the connection efficiency between processes, shortens the asphalt paving cycle, and saves construction costs.

[0038] To sum up, compared with the existing inspection well protective shield, the utility model solves the problem that the shield is easily dragged and displaced by the paver during asphalt paving operations and affects the flatness of the asphalt paving around the well; and compared with traditional construction technology, it has the characteristics of improving work efficiency, reducing construction costs and facilitating storage.

[0039] The foregoing has broadly outlined some aspects and features of various embodiments and should be construed as merely illustrative of various potential applications. Other beneficial results may be achieved by applying the disclosed information in different ways or by combining various aspects of the disclosed embodiments. Further aspects and a more comprehensive understanding may be obtained by referring to the detailed description of the exemplary embodiments in conjunction with the accompanying drawings, within the scope defined by the claims.

[0040] The above embodiments provide a detailed description of the present invention. Of course, the above description is not intended to limit the present invention, nor is the present invention limited to the above examples. Any changes, modifications, additions, subtractions, or substitutions made by those skilled in the art within the essential scope of the present invention also fall within the scope of protection of the present invention.

Claims

1. A device for covering an inspection well during asphalt paving, characterized in that: The covering device includes a shield and a pad connected to the bottom surface of the shield. The top surface of the shield is provided with a rotatable handle; the bottom surface of the shield is provided with a positioning frame assembly that matches the inner edge of the inspection well mouth.

2. The asphalt paving inspection well covering device according to claim 1, characterized in that: The outer diameter of the shield is larger than the inner diameter of the inspection well, and a plurality of pads are provided and evenly distributed around the circumference of the bottom surface of the shield.

3. The asphalt paving inspection well covering device according to claim 2, characterized in that: The pad is made of rubber and is bonded to the bottom of the shield.

4. The asphalt paving inspection well covering device according to claim 2, characterized in that: The pad is a rubber block threadedly connected to the shield, with bolts vulcanized or penetrated inside the rubber block, and the part of the bolt exposed outside the rubber block is threadedly connected to the threaded hole at the bottom of the shield.

5. The asphalt paving inspection well covering device according to any one of claims 1 to 4, characterized in that: The handles are a pair and are symmetrically arranged on the top surface of the baffle; the handles include a hanging ring, a lifting rod and a limit nut; the hanging ring is a U-shaped ring, and the open ends of the two hanging rings are symmetrically fixed on the top surface of the baffle; the diameters of both ends of the lifting rod are smaller than the inner diameter of the hanging ring, and both ends of the lifting rod are processed with external threads that match the limit nut; the two ends of the lifting rod pass through the hanging ring respectively, and the limit nut is threadedly matched at the end portion passing through the hanging ring; the diameter of the limit nut is larger than the inner diameter of the hanging ring.

6. The asphalt paving inspection well covering device according to claim 5, characterized in that: The positioning frame assembly is divided into four groups and distributed in a circular array at the lower end of the baffle; the positioning frame assembly includes a fixed joint, a movable joint, a round rod, a positioning plate, a first positioning screw, a positioning block and a second positioning screw; the fixed joints are a pair and are fixedly arranged at intervals on the bottom surface of the baffle; the movable joint is located between the fixed joints, and the movable joint and the fixed joint are hinged by a rotating shaft; one end of the round rod is fixedly connected to the end of the movable joint away from the baffle.

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