Asphalt concrete pavement inspection well reinforcing structure

Abstract

The utility model relates to the technical field of inspection shaft reinforcement, especially to an asphalt concrete pavement inspection shaft reinforcing structure. Including well shaft, be provided with fixed mechanism on the well shaft, be provided with well seat on the fixed mechanism, even open a plurality of round holes and strip holes on the well seat, the well cover is movably connected on the well seat, the well seat bottom fixedly connected with the baffle ring, the baffle ring bottom and well shaft top contact, be used for preventing the asphalt concrete filler from falling into the inspection shaft in the construction process, the fixed mechanism is used for fixing together with the well cover and well shaft fixed connection. The utility model discloses the mode for reinforcing well seat by increasing the reinforced skeleton, embeds the reinforced bar in well seat and well shaft simultaneously, increases the overall structural strength of well seat, makes well seat can better bear the pressure from well cover and upper traffic load, reduces the loosening or breakage of well cover due to the load too big.

Description

Technical Field

[0001] This utility model relates to the field of manhole reinforcement technology, and in particular to a manhole reinforcement structure for asphalt concrete pavement. Background Technology

[0002] Asphalt concrete pavement is widely used in newly constructed urban roads due to its superior performance and good driving comfort. The construction of municipal roads is often accompanied by the construction of underground pipeline systems, and inspection wells need to be installed at regular intervals for each underground pipeline.

[0003] Existing asphalt concrete pavement manholes are usually simply placed on top of the manhole frame and cover without reinforcement or with only simple fixing. With the continuous rolling of vehicles, the area around the manhole often suffers from problems such as settlement around the manhole, cracking, pavement damage, loosening of the manhole cover and frame, and abnormal noises. This affects the aesthetics of the road, driving comfort, and driving safety as vehicles try to avoid settlement around the manhole, while also increasing road maintenance costs.

[0004] Therefore, this utility model provides a reinforcement structure for inspection wells on asphalt concrete pavement. Utility Model Content

[0005] To overcome the shortcomings of existing asphalt concrete pavement manholes, which typically involve simply placing the manhole base and cover directly onto the manhole without reinforcement or with only simple fixing, leading to frequent problems such as manhole settlement, cracking, pavement damage, loosening of the manhole cover and base, and abnormal noises due to continuous vehicle traffic, thus affecting the aesthetics of the road, driving comfort, and vehicle safety in avoiding manhole settlement, and also increasing road maintenance costs, this utility model provides a reinforcement structure for asphalt concrete pavement manholes.

[0006] The technical solution adopted by this invention to solve its technical problem is: an asphalt concrete pavement inspection well reinforcement structure, including a well cylinder, a well base, and a well cover. A fixing mechanism is provided on the well cylinder, and a well base is provided on the fixing mechanism. A plurality of round holes and strip holes are evenly opened on the well base. A well cover is movably connected to the well base. A retaining ring is fixedly connected to the bottom of the well base. The bottom of the retaining ring contacts the top of the well cylinder to prevent asphalt concrete filler from falling into the inspection well during construction. The fixing mechanism is used to fix the well cylinder and the well cover together.

[0007] Preferably, the fixing mechanism includes a limiting component for fixing the position of the manhole cover so that the top of the manhole cover is on the same horizontal plane as the asphalt concrete pavement. The limiting component includes an adjusting screw, which is provided inside the manhole casing. The adjusting screw passes through a circular hole on the manhole cover. An upper nut is threaded onto the adjusting screw and located above the manhole cover. The upper nut is used to fix the manhole cover. A lower nut is threaded onto the adjusting screw and located below the manhole cover. The lower nut is used to position the manhole cover so that the top of the manhole cover is on the same horizontal plane as the asphalt concrete pavement.

[0008] Preferably, the limiting component further includes a shim. The adjusting screw is provided with a shim located between the upper nut and the well base. The shim is a spring shim, which can generate continuous tension through elastic deformation to resist the loosening of the upper nut caused by vibration from vehicle movement or personnel walking. The adjusting screw is provided with a support shim located between the lower nut and the well base. The support shim can evenly distribute the preload of the lower nut, reduce deformation or cracks caused by local stress, and improve connection reliability. A screw cylinder is fixedly connected inside the well barrel and threadedly connected to the adjusting screw. The screw cylinder is used to adjust the depth of the adjusting screw.

[0009] Preferably, the fixing mechanism includes a clamping component for clamping the well seat, restricting the movement of the well seat, preventing the well seat from loosening and the well cover from making abnormal noises. The clamping component includes a steel reinforcement skeleton, and several steel reinforcement skeletons are provided inside the well cylinder. The upper end of the steel reinforcement skeleton passes through the strip hole of the well seat.

[0010] Preferably, the clamping assembly includes several fixed cylinders fixedly connected inside the well shaft, several locking grooves are provided inside the fixed cylinders, several storage grooves are provided at the lower part of the reinforcing steel skeleton, the storage grooves correspond to the locking grooves, several swing rods are rotatably connected to the outer wall of the reinforcing steel skeleton through torsion springs, the swing rods are located below the storage grooves, and a sliding rod is rotatably connected to the upper end of the swing rod, the sliding rod is slidably connected to the storage groove.

[0011] Preferably, the clamping assembly includes a cylinder, and a plurality of grooves are formed inside the cylinder. A cylinder is fixedly connected to the grooves. The length of the cylinder is less than the depth of the grooves. The reinforcing steel skeleton is slidably connected to the cylinder. A plurality of placement slots are formed at the lower part of the reinforcing steel skeleton. A stop bar is rotatably connected to the placement slot through a torsion spring. The stop bar is used to prevent the reinforcing steel skeleton from moving upward.

[0012] Preferably, the locking assembly includes a locking hook, which is fixedly connected to the well base, and a sliding groove is provided on the reinforcing steel frame. The locking hook is used to connect the reinforcing steel frame and the well base together to prevent the well base from moving.

[0013] Preferably, a limiting groove is provided in the sliding groove, and sliders are slidably connected to both sides of the locking hook. The sliders and the sliding groove are used to prevent the locking hook from moving upward.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] This utility model strengthens the manhole base by adding a steel reinforcement cage, embedding the steel bars into both the manhole base and the manhole cylinder simultaneously. This increases the overall structural strength of the manhole base, enabling it to better withstand the pressure from the manhole cover and the traffic load above, reducing the loosening or damage of the manhole cover due to excessive load. At the same time, it increases the connection stability between the manhole cover and the manhole cylinder, reducing the loosening or abnormal noise of the manhole cover due to vibration or impact. Attached Figure Description

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

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;

[0018] Figure 3 This is a three-dimensional structural diagram of the retaining ring of this utility model;

[0019] Figure 4 This is an exploded view of the limiting component of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the steel reinforcement cage of this utility model;

[0021] Figure 6 This is a schematic diagram of the retracted state structure of the first type of clamping component of this utility model;

[0022] Figure 7 This is a schematic diagram of the extended state structure of the first type of clamping component of this utility model;

[0023] Figure 8 This is a three-dimensional structural diagram of the second type of clamping component of this utility model;

[0024] Figure 9 This is a three-dimensional structural diagram of the third type of clamping component of this utility model.

[0025] In the diagram: 1. Well shaft, 2. Well base, 3. Well cover, 4. Retaining ring, 5. Steel reinforcement frame, 6. Adjusting screw, 7. Upper nut, 8. Lower nut, 9. Washer, 10. Support pad, 11. Screw, 12. Fixing cylinder, 13. Locking groove, 14. Storage groove, 15. Swing rod, 16. Sliding rod, 17. Cylinder, 18. Placement groove, 19. Stop bar, 20. Sliding groove, 21. Restriction groove, 22. Slider, 23. Locking hook. Detailed Implementation

[0026] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0027] Example 1

[0028] A reinforcement structure for asphalt concrete pavement manholes, such as Figure 1-9 As shown, the manhole includes a shaft 1, a base 2, and a cover 3. A fixing mechanism is provided on the shaft 1, and the base 2 is provided on the fixing mechanism. The base 2 has several round holes and strip holes evenly distributed on it. The cover 3 is movably connected to the base 2. A retaining ring 4 is fixedly connected to the bottom of the base 2. The bottom of the retaining ring 4 contacts the top of the shaft 1 to prevent asphalt concrete filler from falling into the manhole during construction. The fixing mechanism is used to fix the shaft 1 and the cover 3 together.

[0029] The fixing mechanism includes a limiting component, which is used to fix the position of the manhole base 2 so that the top of the manhole cover 3 is on the same horizontal plane as the asphalt concrete pavement. The limiting component includes several adjusting screws 6. The adjusting screws 6 are provided inside the manhole barrel 1. The adjusting screws 6 pass through the round holes on the manhole base 2. An upper nut 7 located above the manhole base 2 is threaded onto the adjusting screws 6. The upper nut 7 is used to fix the manhole base 2. A lower nut 8 located below the manhole base 2 is threaded onto the adjusting screws 6. The lower nut 8 is used to position the manhole base 2 so that the top of the manhole cover 3 is on the same horizontal plane as the asphalt concrete pavement.

[0030] The limiting component also includes a shim 9. The adjusting screw 6 is provided with a shim 9 located between the upper nut 7 and the well base 2. The shim 9 is a spring shim, which can generate continuous tension through elastic deformation to resist the loosening of the upper nut 7 caused by vibration from vehicle movement or personnel walking. The adjusting screw 6 is provided with a support pad 10 located between the lower nut 8 and the well base 2. The support pad 10 can evenly distribute the preload of the lower nut 8, reduce deformation or cracks caused by local stress, and improve connection reliability. The well barrel 1 is fixedly connected with a screw cylinder 11 threadedly connected to the adjusting screw 6. The screw cylinder 11 is used to adjust the depth of the adjusting screw 6.

[0031] In use, the construction personnel first screw the adjusting screw 6 into the screw cylinder 11 and adjust it to the appropriate position. Then, according to the height of the manhole cylinder 1 and the asphalt concrete ground, they connect the lower nut 8 and the support pad 10 with the adjusting screw 6 and adjust them to the appropriate position. Next, the construction personnel install the manhole base 2 onto the manhole cylinder 1, so that the upper end of the adjusting screw 6 passes through the round hole on the manhole base 2. Then, they connect the washer 9 and the upper nut 7 with the adjusting screw 6 and tighten the upper nut 7 to fix the manhole base 2, preventing unevenness of the manhole base 2, which could lead to settlement, cracking, and road damage around the manhole. This avoids problems such as uneven road surface and cracks caused by material shrinkage differences due to uneven settlement. After fixing the manhole base 2, the construction personnel then connect the manhole cover 3 to the manhole base 2. In this way, the installation and fixing of the asphalt concrete inspection manhole is completed.

[0032] Example 2

[0033] like Figure 1-9 As shown, based on Embodiment 1, this utility model provides a technical solution: the fixing mechanism includes a clamping component, which is used to clamp the well seat 2, restrict the movement of the well seat 2, and prevent the well seat 2 from loosening and the well cover 3 from making abnormal noises. The clamping component includes a steel reinforcement skeleton 5. Several steel reinforcement skeletons 5 are provided inside the well cylinder 1. The steel reinforcement skeleton 5 includes two vertical steel bars and one horizontal steel bar. The upper ends of the two vertical steel bars of the steel reinforcement skeleton 5 pass through the strip hole of the well seat 2, and the top of the horizontal steel bar of the steel reinforcement skeleton 5 contacts the bottom of the well seat 2.

[0034] The clamping assembly includes several fixed cylinders 12 fixedly connected inside the well shaft 1. Several locking grooves 13 are provided inside the fixed cylinders 12. Several storage grooves 14 are provided at the lower part of the steel reinforcement frame 5. The storage grooves 14 correspond to the locking grooves 13. Several swing rods 15 are rotatably connected to the outer wall of the steel reinforcement frame 5 through torsion springs. The swing rods 15 are located below the storage grooves 14. A sliding rod 16 is rotatably connected to the upper end of the swing rod 15. The sliding rod 16 is slidably connected to the storage groove 14.

[0035] In use, the construction personnel insert the lower end of the reinforcing bar cage 5 into the fixing cylinder 12. As the reinforcing bar cage 5 moves downward, when the swing rod 15 on the reinforcing bar cage 5 is parallel to the locking groove 13 in the fixing cylinder 12, the swing rod 15 will swing outward under the action of the torsion spring. The swing rod 15 will drive the sliding rod 16 to move upward in the receiving groove 14, and then the swing rod 15 will extend in the locking groove 13. Thus, the locking groove 13 in the fixing cylinder 12 limits the swing rod 15 on the reinforcing bar cage 5, preventing the reinforcing bar cage 5 from moving upward. When the top of the transverse reinforcing bar of the reinforcing bar cage 5 is at the same level as the support pad 10, the downward movement of the reinforcing bar cage 5 is stopped. When installing the well base 2 on the well cylinder 1, the construction personnel control the upper end of the reinforcing bar cage 5 to pass through the strip hole on the well base 2, so that the well base 2 can be clamped. In order to ensure the connection effect between the reinforcing bar cage 5 and the well base 2, the reinforcing bar cage 5 and the well base 2 can also be fixed by welding, binding or other methods.

[0036] Example 3

[0037] like Figure 1-9 As shown, based on Embodiment 2, this utility model provides a technical solution: the clamping assembly includes a cylinder 17, a plurality of grooves are provided inside the well cylinder 1, the cylinder 17 is fixedly connected inside the grooves, the length of the cylinder 17 is less than the depth of the grooves, the reinforcing steel skeleton 5 is slidably connected to the cylinder 17, a plurality of placement grooves 18 are provided at the lower part of the reinforcing steel skeleton 5, and a stop bar 19 is rotatably connected to the placement groove 18 through a torsion spring, the stop bar 19 is used to prevent the reinforcing steel skeleton 5 from moving upward.

[0038] In use, the construction personnel insert the lower end of the reinforcing bar cage 5 into the cylinder 17. When the stop bar 19 on the reinforcing bar cage 5 passes through the cylinder 17, the lower end of the reinforcing bar cage 5 is located in the groove inside the well cylinder 1. The stop bar 19 swings outward under the action of the torsion spring, thereby limiting the reinforcing bar cage 5 and preventing it from moving upward. When the top of the transverse reinforcing bar of the reinforcing bar cage 5 is at the same level as the support pad 10, the downward movement of the reinforcing bar cage 5 is stopped. In order to control the posture of the reinforcing bar cage 5, a threaded block can be rotated and connected on the reinforcing bar cage 5. A threaded groove is opened in the fixing cylinder 12, and the position of the reinforcing bar cage 5 is fixed by the threaded connection.

[0039] Example 4

[0040] like Figure 1-9 As shown, based on Embodiment 2, this utility model provides a technical solution: the clamping component includes a locking hook 23, the locking hook 23 is fixedly connected to the well base 2, and the steel reinforcement skeleton 5 is provided with a sliding groove 20. The locking hook 23 is used to connect the steel reinforcement skeleton 5 and the well base 2 together to prevent the well base 2 from moving and increase the fixing effect.

[0041] The sliding groove 20 has a limiting groove 21. The locking hook 23 is slidably connected to both sides of the sliding block 22. The locking hook 23 and the sliding block 22 are connected by a spring. The sliding block 22 and the limiting groove 21 are both wedge-shaped and cooperate with each other to prevent the locking hook 23 from moving upward.

[0042] In use, when the well base 2 is installed on the well casing 1, the construction personnel first insert the locking hook 23 into the sliding groove 20. The slider 22 on the locking hook 23 retracts into the locking hook 23, and the spring is compressed. As the well base 2 moves downward, the locking hook 23 also moves downward in the sliding groove 20. When the slider 22 on the locking hook 23 is parallel to the limiting groove 21, the slider 22 will extend outward under the elastic force of the spring, and then the slider 22 will insert into the limiting groove 21. When the well base 2 continues to move downward, the inclined surface of the slider 22 contacts the inclined surface of the limiting groove 21, which will push the slider 22 to retract, preparing for the next extension. The slider 22 and the limiting groove 21 can limit the locking hook 23 and prevent the locking hook 23 from moving upward.

[0043] Working principle: During use, the construction personnel first screw the adjusting screw 6 into the screw cylinder 11. Then, according to the height of the well cylinder 1 and the asphalt concrete ground, adjust the lower nut 8 and the support pad 10 to the appropriate position. Next, combine the steel reinforcement cage 5 with the fixing cylinder 12 or the cylindrical cylinder 17. The steel reinforcement cage 5 is fixed in position by the action of the swing rod 15 and the sliding rod 16 into the locking groove 13, or by the stop rod 19 extending to the outside of the cylindrical cylinder 17. Then, place the well seat 2 on the well cylinder 1, so that the adjusting screw 6 passes through the round hole of the well seat 2 and the steel reinforcement cage 5 passes through the strip hole of the well seat 2, thereby locking the position of the well seat 2 and preventing the well seat 2 from loosening or making abnormal noise after installation. The process involves several steps: First, the gasket 9 and the upper nut 7 are combined with the adjusting screw 6, and the upper nut 7 is tightened to fix the manhole base 2, preventing unevenness and thus avoiding issues such as settlement, cracking, and road surface damage around the manhole. This also avoids problems caused by uneven settlement, uneven road surface, and cracks due to material shrinkage differences. Finally, the locking hook 23 is slid downwards from the sliding groove 20 to fix the steel frame 5 to the manhole base 2, further securing the manhole base 2 and preventing it from loosening. After fixing the manhole base 2, the construction personnel then attach the manhole cover 3 to the manhole base 2, thus completing the installation and fixing of the asphalt concrete manhole.

[0044] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation in order to cover all variations and equivalent structures and functions.

Claims

1. A reinforcement structure for inspection wells in asphalt concrete pavement, characterized in that: The well includes a well casing (1), a well base (2), and a well cover (3). A fixing mechanism is provided on the well casing (1), and a well base (2) is provided on the fixing mechanism. Several round holes and strip holes are evenly opened on the well base (2). The well cover (3) is movably connected to the well base (2). A retaining ring (4) is fixedly connected to the bottom of the well base (2). The bottom of the retaining ring (4) contacts the top of the well casing (1) to prevent asphalt concrete filler from falling into the inspection well during construction. The fixing mechanism is used to fix the well casing (1) and the well cover (3) together.

2. The asphalt concrete pavement manhole reinforcement structure according to claim 1, characterized in that: The fixing mechanism includes a limiting component, which is used to fix the position of the manhole base (2) so that the top of the manhole cover (3) is on the same horizontal plane as the asphalt concrete pavement. The limiting component includes an adjusting screw (6), which is provided inside the manhole barrel (1). The adjusting screw (6) passes through a round hole on the manhole base (2). An upper nut (7) located above the manhole base (2) is threaded onto the adjusting screw (6). The upper nut (7) is used to fix the manhole base (2). A lower nut (8) located below the manhole base (2) is threaded onto the adjusting screw (6). The lower nut (8) is used to position the manhole base (2) so that the top of the manhole cover (3) is on the same horizontal plane as the asphalt concrete pavement.

3. The asphalt concrete pavement inspection well reinforcement structure according to claim 2, characterized in that: The limiting assembly also includes a gasket (9). The adjusting screw (6) is provided with a gasket (9) located between the upper nut (7) and the well seat (2). The adjusting screw (6) is provided with a support pad (10) located between the lower nut (8) and the well seat (2). The well barrel (1) is fixedly connected with a screw cylinder (11) threadedly connected to the adjusting screw (6). The screw cylinder (11) is used to adjust the depth of the adjusting screw (6).

4. The asphalt concrete pavement manhole reinforcement structure according to claim 1, characterized in that: The fixing mechanism includes a clamping component, which is used to clamp the well seat (2), restrict the movement of the well seat (2), prevent the well seat (2) from loosening and the well cover (3) from making abnormal noises. The clamping component includes a steel reinforcement skeleton (5). Several steel reinforcement skeletons (5) are provided inside the well cylinder (1). The upper end of the steel reinforcement skeleton (5) passes through the strip hole of the well seat (2).

5. The asphalt concrete pavement manhole reinforcement structure according to claim 4, characterized in that: The clamping assembly includes several fixed cylinders (12) fixedly connected inside the well shaft (1). Several locking grooves (13) are provided inside the fixed cylinders (12). Several storage grooves (14) are provided at the lower part of the steel reinforcement frame (5). The storage grooves (14) correspond to the locking grooves (13). Several swing rods (15) are rotatably connected to the outer wall of the steel reinforcement frame (5) through a torsion spring. The swing rods (15) are located below the storage grooves (14). A sliding rod (16) is rotatably connected to the upper end of the swing rods (15). The sliding rod (16) is slidably connected to the storage grooves (14).

6. The asphalt concrete pavement inspection well reinforcement structure according to claim 4, characterized in that: The clamping assembly includes a cylinder (17), and a plurality of grooves are provided inside the well shaft (1). The cylinder (17) is fixedly connected inside the grooves. The length of the cylinder (17) is less than the depth of the grooves. The reinforcing steel skeleton (5) is slidably connected to the cylinder (17). A plurality of placement slots (18) are provided at the lower part of the reinforcing steel skeleton (5). A stop bar (19) is rotatably connected inside the placement slot (18) by a torsion spring. The stop bar (19) is used to prevent the reinforcing steel skeleton (5) from moving upward.

7. The asphalt concrete pavement manhole reinforcement structure according to claim 4, characterized in that: The clamping assembly includes a locking hook (23), which is fixedly connected to the well base (2). A sliding groove (20) is provided on the steel reinforcement frame (5). The locking hook (23) is used to connect the steel reinforcement frame (5) and the well base (2) together to prevent the well base (2) from moving.

8. The asphalt concrete pavement manhole reinforcement structure according to claim 7, characterized in that: A limiting groove (21) is provided in the sliding groove (20). A slider (22) is slidably connected to both sides of the locking hook (23). The locking hook (23) and the slider (22) are connected by a spring. The slider (22) and the sliding groove (20) are used to prevent the locking hook (23) from moving upward.

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