A rainwater gutter, a mounting structure and method for the rainwater gutter

Abstract

A rainwater gutter, a mounting structure and a mounting method for the rainwater gutter, the rainwater gutter comprising a rainwater gutter base, a rainwater gutter cover, an adjusting base, the adjusting base and the rainwater gutter base are both frame-shaped, the lower side of the rainwater gutter base is inserted into the adjusting base, the upper side of the rainwater gutter base is provided with the rainwater gutter cover, the rainwater gutter base comprises an adjusting section, a supporting section, an embedding section and a bearing section, the lower side edge of the rainwater gutter cover is rested on the upper side of the supporting section, the rainwater gutter is adjusted by the cooperation of the lower end adjusting section of the rainwater gutter base and the adjusting base, the adjusting range of the rainwater gutter is large, the rainwater well can be installed conveniently at different fall heights, the upper side of the rainwater gutter base is provided with the outwardly extending bearing section, the bearing section plays a supporting and bearing role and is used for bearing most of the load, so that the load from the upper part is evenly dispersed to the road structure layer, the load borne by the rainwater well is reduced, and the settlement of the rainwater gutter is effectively controlled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of municipal engineering, and in particular to a rainwater grate, a mounting structure and a mounting method for the rainwater grate. BACKGROUND

[0002] At present, the rainwater grate on the urban road mostly adopts a straight bearing type structure. Since the straight bearing type rainwater grate has no flange, the load transmission area is small, and the load is all transmitted to the lower rainwater inlet, so the old rainwater grate is prone to displacement and settlement. In addition, the rainwater grate seat of the old rainwater grate is a plane, and the rainwater grate cover and the rainwater grate seat are made of iron, which causes the rainwater grate cover to be prone to deformation and to jump and resonate when the vehicle is running, thereby not only causing noise pollution, but also further accelerating the settlement of the rainwater grate.

[0003] The traditional rainwater grate is installed by cast-in-place concrete. Since the stiffness of the cement concrete is different from that of the asphalt concrete, under the action of repeated vehicle loads, cracks, dislocation, and jumping of the combined parts are prone to occur, and the rainwater grate seat is a weak force bearing part, and the bearing surface of the rainwater well is small, so under the action of repeated vehicle loads, the rainwater grate and the surrounding rainwater grate are prone to settlement, thereby greatly increasing the maintenance rate in the later period.

[0004] In the industry, some enterprises also design the settlement of the well cover. For example, the Chinese patent document CN112431227B discloses a kind of anti-settlement well cover, including cover plate and well seat, well seat is located at the top of masonry well, cover plate is located in well seat, the well seat includes bottom plate, faceplate, annular vertical plate and several reinforcing plates, the width of faceplate is less than the width of bottom plate, the top of annular vertical plate is integrally formed with faceplate, the bottom of annular vertical plate is integrally formed with bottom plate, reinforcing plate is vertically arranged and fixedly connected with faceplate at top end, fixedly connected with bottom plate at bottom end, fixedly connected with annular vertical plate at side end, all reinforcing plates are evenly distributed around annular vertical plate, the upper surface of faceplate is flush with the road surface. Its feature lies in that the blocking of reinforcing plate prevents the road surface between two adjacent reinforcing plates from escaping vertically to the driving direction, thereby avoiding the road surface around the well seat from being damaged by vehicles. Its deficiency lies in that the stress of the entire well cover is transmitted to the masonry well through the well seat, the masonry well is generally made of prefabricated bricks, and its strength is insufficient. Since the stress area of the bottom plate of the well seat and the masonry well is limited, the masonry well will be damaged and / or the bottom plate will be deformed under the repeated rolling of the vehicle load, and the well cover will still settle. Moreover, since the thickness of the well seat is fixed, when the distance between the masonry well and the road surface is greater than or less than the thickness of the well seat, the height of the masonry well needs to be adjusted, which is inconvenient to install. SUMMARY

[0005] The technical problem to be solved by the present application is to solve the problems in the above background, provide a rainwater grate capable of effectively controlling settlement, the rainwater grate has a large adjustment range and can be installed on rainwater wells with different fall heights, is convenient to install, and does not jump and resonate after installation.

[0006] Another technical problem to be solved by the present application is to provide a mounting structure of a rainwater grate, through which the rainwater grate is quickly mounted and the structure is firm, and the rainwater grate is not prone to subsidence and jumping.

[0007] Another technical problem to be solved by the present application is to provide a replacement method of the rainwater grate, through which the old rainwater grate on the existing road can be quickly replaced, and the rainwater grate is not prone to subsidence and jumping after replacement.

[0008] In order to realize the above technical features, the purpose of the present application is achieved in that a rainwater grate comprises a rainwater grate base, a rainwater grate cover, and an adjusting base, the adjusting base and the rainwater grate base are both frame-shaped, the lower side of the rainwater grate base is inserted into the adjusting base, and the upper side of the rainwater grate base is provided with the rainwater grate cover, the rainwater grate base comprises an adjusting section, a supporting section, an embedding section, and a bearing section, the adjusting section is longitudinally arranged and can be inserted into the adjusting base, the supporting section is transversely arranged, the inner side of the supporting section is connected to the upper end of the adjusting section, the outer side is connected to the lower end of the embedding section, the upper end of the embedding section extends upward and is connected to the inner side of the bearing section, and the bearing section is transversely arranged, and the lower side edge of the rainwater grate cover is placed on the upper side of the supporting section.

[0009] The upper side of the supporting section is provided with a groove, a shock-absorbing pad is mounted at the groove, the lower side of the rainwater grate cover is provided with a downwardly extending protruding part near the edge, and the lower end of the protruding part is in pressure fit with the shock-absorbing pad.

[0010] The outer side edge of the rainwater grate cover is a downwardly inclined inclined surface, and the embedding section is inclined in the same direction as the inclined surface.

[0011] The outer side of the rainwater grate base at the bearing section is provided with a downwardly extending reinforcing section.

[0012] The adjusting base is provided with an L-shaped structure in cross section, the outer side of the L-shaped structure is provided with a reinforcing rib, and the bottom of the L-shaped structure is provided with a positioning hole.

[0013] The middle part of the rainwater grate cover is provided with long-strip-shaped grate water holes, and the lower side of the cover body between the grate water holes is provided with downwardly extending supporting ribs.

[0014] The embedding section is provided with an outwardly protruding clamping block on the side close to the rainwater grate cover, the protruding part of the rainwater grate cover is provided with an outwardly protruding limiting block on the side close to the clamping block, and the limiting block and the rainwater grate cover form a limiting groove for accommodating the clamping block.

[0015] A mounting structure of a rainwater grate adopts the rainwater grate, and the mounting structure comprises a well ring of a prefabricated concrete structure, the well ring is mounted at the well mouth of a rainwater well, the adjusting base of the rainwater grate is mounted at the upper side of the well ring, the lower end of the rainwater grate base is inserted into the adjusting base, the upper side of the rainwater grate base is flush with the upper side of the road surface layer, and the outer side of the rainwater grate and the well ring is filled with asphalt mixture.

[0016] A method for installing a rainwater grate, which adopts the installation structure of the rainwater grate, and comprises the following installation steps:

[0017] S1. Construction enclosure: Before construction, an enclosure structure should be set up outside the construction area, and special personnel should be arranged to guide traffic and command, and traffic diversion signs, reflective cones, construction fences should be placed, warning lights should be hung at night, and construction and traffic safety should be ensured;

[0018] S2. Positioning and line laying: the road surface where the rainwater grate is to be replaced is painted, and the plan size of the painted line is 250-300mm outwardly added to the outer size of the rainwater grate in all directions;

[0019] S3. Old road surface cutting: a road cutting machine is used, the cutting depth of the blade is first adjusted, the depth is adjusted again after cutting a circle, and the depth is cut layer by layer to the required cutting depth, and the total cutting depth is 40-50mm; wherein the one-time cutting depth is 10-20mm per circle, and the worker should hold the operating rod with both hands to keep the cutting machine moving at a low speed and uniform speed, and the speed should not be greater than 12.5mm / s;

[0020] S4. Breaking the old road surface: impact pick is used to break the road surface layer and road base in the cutting area, and the pit breaking depth is 25-30cm below the old road surface, and the pit surface is clean and flat;

[0021] S5. Base treatment: after breaking the old road surface, the base of the pit is reinforced and treated; wherein when there is local damage at the top of the rainwater well, the damaged rainwater well is repaired first, then a well ring is placed at the top of the rainwater well, and when the plan size of the well ring is greater than the size of the rainwater well, a slope is formed on the inner side of the well ring and the rainwater well with cement mortar for drainage;

[0022] S6. Installing the adjusting seat: the adjusting seat is installed flat and stably on the top surface of the well ring, and the plan position and cross slope are checked during installation to ensure that the plan position is correct, the slope of the adjusting seat is consistent with the slope of the road, and after rechecking, the adjusting seat is fixed with the well ring through the positioning hole using expansion bolts;

[0023] S7. Installing the limiting well cylinder: the limiting well cylinder is frame-shaped, and its outer size matches the inner frame size of the adjusting seat, the limiting well cylinder is coated with an anti-adhesive agent before installation, and the limiting well cylinder is inserted vertically into the adjusting seat and placed to ensure stability;

[0024] S8. Brushing tack coat: before the asphalt mixture is backfilled in layers, the contact surface in the cutting range is brushed with tack coat, and the amount of oil used is not less than 1.5L / m 2 ;

[0025] S9. Backfilling asphalt mixture: The asphalt mixture is layered and paved, and each layer is compacted by not more than 10 cm in thickness, and the uppermost layer is reserved to be 5-8 cm in thickness; wherein the lower layer of asphalt mixture is compacted by impact rammer, and the compaction degree is not less than 90%, the virtual paving coefficient of the uppermost layer of asphalt mixture is determined according to the thickness of the rainwater gutter and the compaction machine, the loose paving coefficient is 1.1, the virtual paving thickness is accurately controlled to ensure that the filling surface after forming is flat and consistent with the original pavement layer;

[0026] S10. Installing rainwater gutter and rainwater cover: after the uppermost layer of asphalt mixture is paved, the surrounding asphalt mixture of the limiting well cylinder is preliminarily compacted, then the limiting well cylinder is rotated left and right to separate the limiting well cylinder and the asphalt mixture, then the limiting well cylinder is taken out vertically upward, and then the rainwater gutter with the rainwater cover is hoisted to the upper side of the adjusting seat, is aligned with the adjusting seat, and is slowly and vertically placed into the adjusting seat; wherein during the placing process, it is observed to ensure that the rainwater gutter is inserted into the adjusting seat, and to ensure that the surrounding asphalt mixture of the hole position is not deformed and collapsed by external force, the overlapping height of the lower end adjusting section of the rainwater gutter and the adjusting seat is not less than 2 cm, the cross slope of the rainwater gutter and the rainwater cover is consistent with the cross slope of the road, and the rainwater gutter and the rainwater cover are 1-3 mm lower than the two side stones at the position close to the side stone and the flat stone, so that the rainwater gutter does not accumulate water;

[0027] S11. Vibration and compaction: after the rainwater gutter and the rainwater cover are positioned, the rainwater gutter and the rainwater cover and the surrounding asphalt mixture are leveled with the surrounding asphalt mixture by preliminary compaction with the impact rammer, and then the rainwater gutter and the rainwater cover and the surrounding asphalt mixture are rolled back and forth for more than twice by a small roller, the flatness is detected in time, the local material is supplemented by manual operation, the joint is supplemented by fine material, the material is supplemented again by the flat rammer, the position close to the side stone is compacted by the flat rammer, and the above process is repeated to make the rainwater gutter and the asphalt mixture integrated and flat with the original pavement; wherein the asphalt and sundries on the rainwater gutter should be cleaned in time during the material supplementing process;

[0028] S12. Opening traffic: after the replaced rainwater gutter is qualified, the surface and the surrounding of the rainwater gutter and the rainwater cover should be cleaned in time, water is sprinkled for cooling, and the traffic is opened after the temperature of the asphalt mixture is lower than 50 DEG C.

[0029] Before S1, a disease investigation step is further provided; before construction, the original rainwater gutter should be investigated in detail and numbered in sequence; wherein the investigation content includes the number of the rainwater gutter, the disease type, the material and size of the well cover, and the ownership unit.

[0030] The present application has the following beneficial effects:

[0031] 1. The rainwater grate is installed conveniently by adjusting the range of the rainwater grate through the cooperation of the lower end adjusting section of the rainwater grate seat and the adjusting seat, and can be installed in rainwater wells with different fall heights. The load bearing section extending outwardly on the upper side of the rainwater grate seat supports and bears most of the load, thereby effectively dispersing the load from the upper part to the road structure layer and reducing the load on the rainwater well by more than 80%, thereby effectively controlling the settlement of the rainwater grate.

[0032] 2. The rainwater grate seat and the rainwater grate cover are prevented from knocking and producing jumping noise by setting the shock pad.

[0033] 3. The outer side edge of the rainwater grate cover is a downwardly inclined inclined surface, and the embedded section is inclined in the same direction as the inclined surface, thereby preventing the shock pad from producing jumping noise after aging and deformation after long-term use.

[0034] 4. The protruding clamping block on the side of the embedded section close to the rainwater grate cover is provided with a protruding limiting block on the side close to the clamping block, and the limiting block and the rainwater grate cover form a limiting groove for accommodating the clamping block. When the rainwater grate cover is closed, the clamping block is clamped into the limiting groove, thereby limiting the rainwater grate cover, and the rainwater grate cover is offset to one side under the load, so that the rainwater grate cover tightly abuts against the rainwater grate seat, thereby eliminating the jumping noise.

[0035] 5. The stress of the rainwater grate is transmitted to the rainwater well through the well ring set at the well mouth of the rainwater well, and the pressure of the rainwater grate on the well mouth of the rainwater well is reduced due to the large area of the bottom of the well ring. The lower end of the rainwater grate seat is inserted into the adjusting seat, and the telescopic structure enables the rainwater grate to adapt to various height sizes between the well ring and the road surface layer, thereby being installed conveniently. The outer side of the rainwater grate and the well ring is filled with asphalt mixture, and the rainwater grate seat, the adjusting seat and the well ring are connected to the road surface layer and the road base layer as a whole through the asphalt mixture, thereby not only transferring most of the load on the rainwater grate seat to the road structure, but also making the entire installation structure more stable and firm, thereby effectively controlling the settlement of the rainwater grate.

[0036] 6. The rainwater grate replacement method can quickly replace the old rainwater grate on the existing road by using the prefabricated well ring and the asphalt mixture, and the replaced rainwater grate is not prone to settlement and jumping. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a top view structure diagram of the rainwater grate of the present application.

[0038] Figure 2 It is Figure 1 a sectional structure diagram of A-A in the middle.

[0039] Figure 3 It is Figure 1 a sectional structure diagram of B-B in the middle.

[0040] Figure 4 Figure 1 is a schematic view of the rainwater gutter according to the present application. Figure 2 Figure 2 is a schematic view of the rainwater gutter according to the present application.

[0041] Figure 5 Figure 3 is a schematic view of the rainwater gutter according to the present application.

[0042] Figure 6 Figure 4 is a schematic view of the rainwater gutter according to the present application.

[0043] Figure 7 Figure 5 is a schematic view of the rainwater gutter according to the present application.

[0044] Figure 8 Figure 6 is a schematic view of the rainwater gutter according to the present application.

[0045] Figure 9 Figure 7 is a schematic view of the rainwater gutter according to the present application.

[0046] Figure 10 Figure 8 is a schematic view of the rainwater gutter according to the present application.

[0047] Figure 1 is a schematic view of the rainwater gutter according to the present application.

[0048] Figure 2 is a schematic view of the rainwater gutter according to the present application.

[0049] Figure 3 is a schematic view of the rainwater gutter according to the present application.

[0050] Figure 4 is a schematic view of the rainwater gutter according to the present application. DETAILED DESCRIPTION

[0051] The embodiments of the present application will be further described with reference to the drawings.

[0052] Embodiment 1

[0053] Figure 1 is a schematic view of the rainwater gutter according to the present application. Figures 1-6The rainwater grate comprises a rainwater grate base 1, a rainwater grate cover 2, and an adjusting base 3, the adjusting base 3 and the rainwater grate base 1 are both in the shape of a frame, the lower side of the rainwater grate base 1 is inserted into the adjusting base 3, and the upper side of the rainwater grate base 1 is provided with the rainwater grate cover 2, the rainwater grate base 1 comprises an adjusting section 11, a supporting section 12, an embedding section 13, and a bearing section 14, the adjusting section 11 is longitudinally arranged and can be inserted into the adjusting base 3, the supporting section 12 is transversely arranged, the inner side of the supporting section 12 is connected to the upper end of the adjusting section 11, and the outer side is connected to the lower end of the embedding section 13, the upper end of the embedding section 13 extends upwards and is connected to the inner side of the bearing section 14, and the bearing section 14 is transversely arranged, and the lower side edge of the rainwater grate cover 2 is placed on the upper side of the supporting section 12, the cooperation between the lower end adjusting section 11 of the rainwater grate base 1 and the adjusting base 3 makes the adjusting range of the rainwater grate large, and the rainwater grate can be installed on a rainwater well with different fall heights, and the installation is convenient, the bearing section 14 extending outward is arranged on the upper side of the rainwater grate base 1, the bearing section 14 plays a supporting and bearing role and is used for bearing most of the load, thereby effectively dispersing the load from the upper part to the road structure layer, reducing the load borne by the rainwater well by more than 80%, and effectively controlling the settlement of the rainwater grate.

[0054] Specifically, the adjusting base 3 and the rainwater grate base 1 are both in the shape of a frame, which can be a square, a rectangle, or a circular ring, or other shapes.

[0055] Referring to Figure 6 In the preferred scheme, H=180mm, h=120mm, and thus there is a 60mm adjusting stroke between the rainwater grate base 1 and the adjusting base 3.

[0056] Referring to Figure 4 The upper side of the supporting section 12 is provided with a groove 16, the groove 16 is provided with a shock pad 17, the lower side of the rainwater grate cover 2 is provided with a protruding part 23 extending downwards near the edge, and the lower end of the protruding part 23 is in pressure fit with the shock pad 17. Preferably, the shock pad 17 is made of chlorobutyl rubber, the groove 16 is in the shape of a circular arc or a trapezoidal structure, and the trapezoidal structure is shown in Figure 6 The shock pad 17 is arranged to avoid the knocking and jumping noise between the rainwater grate base 1 and the rainwater grate cover 2.

[0057] Referring to Figure 4 In order to prevent the shock pad 17 from deforming due to aging after long-term use, the outer side edge of the rainwater grate cover 2 is a bevel 24 with the lower end inclined inward, and the embedding section 13 is inclined in the same direction as the bevel 24. Specifically, the rainwater grate cover 2 is wedged into the rainwater grate base 1, there is a gap between the bevel 24 and the inner wall of the embedding section 13 before the shock pad 17 is aged and loses its function, and the rainwater grate cover 2 moves downwards after the shock pad 17 is aged and gradually loses its function, so that the bevel 24 abuts against the inner part of the embedding section 13, the gap between the rainwater grate cover 2 and the rainwater grate base 1 is minimized, and the knocking and jumping noise between the rainwater grate base 1 and the rainwater grate cover 2 is controlled.

[0058] Referring to Figure 4 , the rainwater grate 1 is provided with a downwardly extending reinforcing section 15 on the outer side of the load-bearing section 14, and the structural strength of the load-bearing section 14 is enhanced by the reinforcing section 15.

[0059] Specifically, referring to Figure 4 , the L-shaped structure of the adjusting seat 3, the L-shaped structure is provided with a reinforcing rib 31 on the outer side, and the bottom of the L-shaped structure is provided with a positioning hole 32. The adjusting seat 3 of the L-shaped structure increases the stress area with the rainwater well 7, thereby reducing the damage of the pressure to the rainwater well 7, and the positioning hole 32 is used to fix with the rainwater well 7 or other components.

[0060] Specifically, referring to Figure 1 , the middle part of the rainwater grate cover 2 is provided with a long strip-shaped grate water hole 21, and the lower side of the cover body between each grate water hole 21 is provided with a downwardly extending supporting rib 22. The long strip-shaped grate water hole 21 is more conducive to the water on the road flowing into the rainwater inlet, and greatly enhances the water collecting capacity of the rainwater grate. The supporting rib 22 is used to increase the structural strength of the cover body between two adjacent grate water holes 21, and prevent the rainwater grate cover 2 from deforming.

[0061] Because the old rainwater grate hinge is relatively weak, and the hinge is located on the surface of the rainwater grate, and is subjected to vehicle impact for a long time, the hinge is easy to loosen or even break, causing the rainwater grate to jump and make noise, and in severe cases, there is a safety hazard. Referring to Figure 4 , the embedded section 13 is provided with an outwardly protruding clamping block 18 on the side close to the rainwater grate cover 2, and the rainwater grate cover 2 is provided with an outwardly protruding limiting block 25 on the side close to the clamping block 18. The limiting block 25 and the rainwater grate cover 2 form a limiting groove 26 for accommodating the clamping block 18, and when the rainwater grate cover 2 is closed, the clamping block 18 is clamped into the limiting groove 26, thereby limiting the rainwater grate cover 2. Specifically, the clamping block 18 is triangular, the upper side of the limiting groove 26 is in contact with the upper inclined surface of the triangular clamping block 18, and the rainwater grate cover 2 is offset to one side under load, so that the rainwater grate cover 2 tightly abuts against the rainwater grate seat 1, thereby eliminating the jumping noise.

[0062] Embodiment two:

[0063] Referring to Figure 7 , 8The installation structure of the rainwater grate is adopted, the installation structure comprises a well ring 8 of a prefabricated concrete structure, the well ring 8 is installed at the well mouth of a rainwater well 7, an adjusting seat 3 of the rainwater grate is installed at the upper side of the well ring 8, the lower end of a rainwater grate seat 1 is inserted into the adjusting seat 3, the upper side of the rainwater grate seat 1 is flush with the upper side of a road surface layer 5, and the outer side of the rainwater grate and the well ring 8 is filled with asphalt mixture 4. By arranging the well ring 8 at the well mouth of the rainwater well 7, the stress of the rainwater grate is transmitted to the rainwater well 7 through the well ring 8, and the pressure intensity of the rainwater grate on the well mouth of the rainwater well 7 is reduced due to the large area of the bottom of the well ring 8. By inserting the lower end of the rainwater grate seat 1 into the adjusting seat 3, the extension structure enables the rainwater grate to adapt to various height sizes between the well ring 8 and the road surface layer 5, and the installation is convenient. The outer side of the rainwater grate and the well ring 8 is filled with the asphalt mixture 4, the rainwater grate seat 1, the adjusting seat 3 and the well ring 8 are connected with the road surface layer 5 and the road base layer 6 into an integral whole through the asphalt mixture 4, most of the load borne by the rainwater grate seat 1 is transferred to the road structure, the entire installation structure is more stable and firm, and thus the settlement of the rainwater grate is effectively controlled.

[0064] Embodiment three:

[0065] Referring to Figure 10 A rainwater grate replacement method is adopted, and the installation structure of the rainwater grate comprises the following installation steps:

[0066] S1. Construction enclosure: Before construction, an enclosure structure should be arranged outside the construction area, and special personnel should be arranged to guide traffic and direct, and traffic diversion signs, reflective cones, construction fences should be placed, warning lights should be hung at night, and construction and traffic safety should be ensured.

[0067] S2. Positioning and line laying: the road surface where the rainwater grate is to be replaced is painted, and the plan size of the painted line is 250-300mm outwardly added to each side of the outer size of the rainwater grate.

[0068] S3. Old road surface cutting: a road cutting machine is adopted, the cutting depth of the blade is first adjusted, the depth is adjusted again after cutting a circle, and the depth is cut layer by layer to the required cutting depth, and the total cutting depth is about 40-50mm; wherein the one-time cutting depth is about 10-20mm per circle, and the workers should hold the operating rod with both hands to keep the cutting machine advancing at a low speed and uniform speed, and the speed should not be greater than 12.5mm / s.

[0069] S4. Breaking the old road surface: impact picks are used to break the road surface layer 5 and the road base layer 6 in the cutting area, the pit breaking depth is 25-30cm below the old road surface, and the pit surface is clean and flat. Attention should be paid to the protection of the cutting surface when breaking, and the cutting edge should not be damaged.

[0070] S5. Base treatment: after the old pavement is broken, the base of the foundation pit is reinforced according to different disease conditions; when there is local damage on the top of the rainwater well 7, the damaged rainwater well 7 is repaired first, and then the well ring 8 is placed on the top of the rainwater well 7, when the planar size of the well ring 8 is larger than the size of the rainwater well 7, the inside of the well ring 8 and the rainwater well 7 is sloped 9 with cement mortar to facilitate drainage. If the top surface of the rainwater well 7 is not flat, it is leveled with 1:2 cement mortar, and the leveling mortar thickness should not be greater than 20mm. If the excavation of the foundation pit around the old pavement exists subsidence, non-dense condition should be grouting reinforcement treatment. Preferably, the well ring 8 adopts C30 reinforced concrete prefabrication. According to the condition of the rainwater well 7, if the rainwater well 7 is not much different from the rainwater well 7, see Figure 7 , the well ring 8 is adopted as "mouth" shape; if the well mouth of the rainwater well 7 is much larger than the rainwater well 7, see Figure 9 , the well ring 8 is adopted as "day" shape.

[0071] S6. Installing the adjusting seat 3: the adjusting seat 3 is installed flat and stably on the top surface of the well ring 8, and the planar position and cross slope are checked during the installation process to ensure that the planar position is correct, the slope of the adjusting seat 3 is consistent with the road slope, and after the review is correct, the adjusting seat 3 is fixed with the well ring 8 through the positioning hole 32 by using the expansion bolt.

[0072] S7. Installing the limiting well cylinder: the limiting well cylinder is frame-shaped, and its outer size and the inner frame size of the adjusting seat 3 are matched. The limiting well cylinder is coated with anti-adhesive agent before installation, and is inserted into the adjusting seat 3 and placed to ensure stability. The function of the limiting well cylinder is to extend the height of the adjusting seat 3, which acts as a mold to facilitate the backfilling of the bottom asphalt mixture 4.

[0073] S8. Coating the tack coat: before the asphalt mixture 4 is layered and backfilled, the contact surface in the cutting range is coated with tack coat, and the amount of oil is not less than 1.5L / m 2 . It is convenient for the asphalt mixture 4 to combine with the road structure.

[0074] S9. Backfilling asphalt mixture 4: The asphalt mixture 4 is layered and paved, and is layered and tamped, with each layer having a thickness of no more than 10 cm, and the uppermost layer having a thickness of 5-8 cm; wherein the lower layer of asphalt mixture 4 is compacted by impact ramming, with a compaction degree of no less than 90%, and the virtual paving coefficient of the uppermost layer of asphalt mixture 4 is determined according to the thickness of the rainwater gutter seat 1 and the compaction machine, with a loose paving coefficient of 1.1, and the virtual paving thickness is precisely controlled to ensure that the filled surface after forming is flat and consistent with the original road surface layer 5. Preferably, the backfilling asphalt mixture 4 is AC-13 modified hot-mixed asphalt mixture, and the asphalt mixture 4 is centrally stirred and processed in a factory, with the stirring mixture temperature and quality meeting the requirements of the “Code for Construction and Quality Acceptance of Urban Road Engineering”. The asphalt mixture 4 is transported by a special asphalt heat preservation vehicle or an ordinary transport vehicle with a cotton quilt cover. When the upper layer of asphalt mixture 4 is paved, fine material is used to fill the surface near the cutting surface part uniformly, and the excess asphalt mixture outside the cutting joint is cleaned up.

[0075] S10. Installing the rainwater gutter seat 1 and the rainwater gutter cover 2: After the uppermost layer of asphalt mixture 4 is paved, the asphalt mixture 4 around the limiting well is preliminarily tamped, then the limiting well is rotated left and right to separate the limiting well from the asphalt mixture 4, then the limiting well is taken out vertically upward, and then the rainwater gutter seat 1 with the rainwater gutter cover 2 is hoisted to the upper side of the adjusting seat 3, is aligned with the adjusting seat 3, and is slowly and vertically placed in; wherein during the placing process, it is observed to ensure that the rainwater gutter seat 1 is inserted into the adjusting seat 3, and to ensure that the asphalt mixture 4 around the hole position is not deformed and collapsed by external force, the overlapping joint height of the adjusting section 11 at the lower end of the rainwater gutter seat 1 and the adjusting seat 3 is no less than 2 cm, and the cross slope of the rainwater gutter seat 1 and the rainwater gutter cover 2 is consistent with the cross slope of the road, and near the curbstone and flat stone, referring to Figure 9 , the rainwater gutter seat 1 and the rainwater gutter cover 2 are 1-3 mm lower than the flat stones on both sides, so that no water accumulates at the rainwater gutter seat 1.

[0076] S11. Vibratory compaction: After the rainwater gutter seat 1 and the rainwater gutter cover 2 are in place, the rainwater gutter seat 1 and the rainwater gutter cover 2 are made flush with the surrounding asphalt mixture 4 by preliminary tamping with an impact rammer, and the rainwater gutter seat 1 and the rainwater gutter cover 2 and the surrounding asphalt mixture are rolled back and forth for more than two times by a small road roller, the flatness is detected in a timely manner, the local material is supplemented by manual work, the fine material is used to supplement the joints, the material is supplemented again by a plate tamper, the plate tamper is used to tamp and compact near the curbstone, the above process is repeated to make the rainwater gutter seat 1 and the asphalt mixture 4 integrated and flat with the original road surface; wherein the asphalt and sundries on the rainwater gutter seat 1 should be cleaned up in a timely manner during the material supplementing process.

[0077] S12. Opening traffic: After the replaced rainwater gutter is accepted and qualified, the surface and surrounding of the rainwater gutter seat 1 and the rainwater gutter cover 2 should be cleaned up in a timely manner, watered to cool down, and the traffic should be opened after the temperature of the asphalt mixture 4 is lower than 50℃ and the fence is removed.

[0078] Before S1, a step of disease investigation is further provided; before construction, the original rainwater gutter is investigated in detail and numbered in sequence; the investigation content includes the number of rainwater gutter, disease type, size and material of well lid, and ownership unit.

Claims

1. A rain gutter, characterized by: The rainwater gutter comprises a rainwater gutter base (1), a rainwater gutter cover (2) and an adjusting base (3), the adjusting base (3) and the rainwater gutter base (1) are both frame-shaped, the lower side of the rainwater gutter base (1) is inserted into the adjusting base (3), and the upper side of the rainwater gutter base (1) is provided with the rainwater gutter cover (2), the rainwater gutter base (1) comprises an adjusting section (11), a supporting section (12), an embedding section (13) and a bearing section (14), the adjusting section (11) is longitudinally arranged and can be inserted into the adjusting base (3), the supporting section (12) is transversely arranged, the inner side of the supporting section (12) is connected to the upper end of the adjusting section (11), the outer side of the supporting section (12) is connected to the lower end of the embedding section (13), the upper end of the embedding section (13) extends upward and is connected to the inner side of the bearing section (14), and the bearing section (14) is transversely arranged, and the lower edge of the rainwater gutter cover (2) is placed on the upper side of the supporting section (12). The embedding section (13) is provided with an outwardly protruding clamping block (18) on the side close to the rainwater gutter cover (2), the protruding part (23) on the lower side of the rainwater gutter cover (2) is provided with an outwardly protruding limiting block (25) on the side close to the clamping block (18), the limiting block (25) and the rainwater gutter cover (2) form a limiting groove (26) for accommodating the clamping block (18), when the rainwater gutter cover (2) is closed, the clamping block (18) is clamped into the limiting groove (26) to limit the rainwater gutter cover (2), the clamping block (18) is triangular, the upper side of the limiting groove (26) is in contact with the upper inclined surface of the triangular clamping block (18), the rainwater gutter cover (2) is offset to one side under the load, so that the rainwater gutter cover (2) is tightly in contact with the rainwater gutter base (1) and the jumping noise is eliminated. The upper side of the supporting section (12) is provided with a groove (16), and a shock pad (17) is arranged at the groove (16), the lower side of the rainwater gutter cover (2) is provided with a downwardly extending protruding part (23) close to the edge, and the lower end of the protruding part (23) is in pressure contact with the shock pad (17), the outer edge of the rainwater gutter cover (2) is a lower end inwardly inclined inclined surface (24), and the embedding section (13) is inclined in the same direction as the inclined surface (24).

2. A rain gutter according to claim 1, characterized in that: The rainwater gutter base (1) is provided with a downwardly extending reinforcing section (15) on the outer side of the bearing section (14).

3. A rain gutter according to claim 1, characterized in that: The adjusting base (3) has an L-shaped structure in cross section, the outer side of the L-shaped structure is provided with a reinforcing rib (31), and the bottom of the L-shaped structure is provided with a positioning hole (32).

4. A rain gutter according to claim 1, characterized in that: The middle part of the rainwater gutter cover (2) is provided with a long strip-shaped gutter hole (21), and the lower side of the cover body between the gutter holes (21) is provided with a downwardly extending supporting rib (22).

5. A mounting structure of a rain gutter, characterized by: The rainwater gutter adopts the installation structure of any one of claims 1-4, the installation structure comprises a well ring (8) of a prefabricated concrete structure, the well ring (8) is arranged at the well mouth of a rainwater well (7), the adjusting base (3) of the rainwater gutter is arranged at the upper side of the well ring (8), the lower end of the rainwater gutter base (1) is inserted into the adjusting base (3), the upper side of the rainwater gutter base (1) is flush with the upper side of a road surface layer (5), and the outer side of the rainwater gutter and the well ring (8) is filled with asphalt mixture (4).

6. A method of installing a rain gutter, characterized by: The installation structure of the rainwater gutter adopts the installation structure of claim 5, and the installation structure comprises the following installation steps: S1. Construction enclosure: Before construction, an enclosure structure should be set up outside the construction area, and special personnel should be arranged to guide traffic and give directions, place traffic diversion signs, reflective cones, construction barriers, and hang warning lights at night to ensure construction and traffic safety; S2. Positioning and line laying: Draw lines on the road surface where the rainwater gutter will be replaced, with the plan size being the outer dimensions of the rainwater gutter plus 250-300 mm on each side; S3. Old road surface cutting: Use a road cutting machine to adjust the cutting depth of the blade, adjust the depth again after cutting a circle, and cut layer by layer to the required depth, with a total cutting depth of 40-50 mm; the one-time cutting depth is 10-20 mm, and the worker should hold the operating lever tightly and keep the cutting machine moving at a low speed, with a speed not greater than 12.5 mm / s; S4. Breaking the old road surface: Use impact picks to break the road surface layer (5) and road base layer (6) in the cutting area, with a pit breaking depth of 25-30 cm below the old road surface, and a clean and flat pit surface; S5. Base treatment: After breaking the old road surface, reinforce the base of the pit; if there is local damage to the top of the rainwater well (7), first repair the damaged rainwater well (7), then place a well ring (8) on the top of the rainwater well (7), and when the plan size of the well ring (8) is larger than the size of the rainwater well (7), use cement mortar to form a slope (9) on the inside of the well ring (8) and the rainwater well (7) to facilitate drainage; S6. Installing the adjusting seat (3): The adjusting seat (3) is installed flat and stable on the top surface of the well ring (8), and the plan position and cross slope are checked during installation to ensure that the plan position is correct, the slope of the adjusting seat (3) is consistent with the road slope, and after rechecking, the adjusting seat (3) is fixed to the well ring (8) through the positioning hole (32) using expansion bolts; S7. Installing the limiting well cylinder: The limiting well cylinder is frame-shaped, with its outer dimensions matching the inner frame dimensions of the adjusting seat (3), and the limiting well cylinder is coated with an anti-adhesive agent before installation, and is inserted vertically into the adjusting seat (3) and placed securely; S8. Brushing tack coat oil: before the asphalt mixture (4) is layered backfill, the contact surface in the cutting range is brushed with a tack coat oil, and the amount of oil is not less than 1.5 L / m 2 ; S9. Backfilling asphalt mixture (4): The asphalt mixture (4) is laid in layers and compacted, with each layer being no more than 10 cm thick, and the top layer being 5-8 cm thick; the lower layer of asphalt mixture (4) is compacted using an impact rammer, with a compaction degree of not less than 90%, and the virtual paving coefficient of the uppermost layer of asphalt mixture (4) is determined according to the thickness of the rainwater gutter seat (1) and the compaction equipment, with a loose paving coefficient of 1.1, and the virtual paving thickness is accurately controlled to ensure that the filled surface is flat and consistent with the original road surface layer (5). S10. Installing the rainwater grating base (1) and the rainwater grating cover (2): After the uppermost layer of asphalt mixture (4) is paved, the asphalt mixture (4) around the limiting shaft is initially tamped, then the limiting shaft is rotated left and right to separate the limiting shaft from the asphalt mixture (4), then the limiting shaft is taken out vertically upward, and then the rainwater grating base (1) with the rainwater grating cover (2) is hoisted to the upper side of the adjusting seat (3) and slowly placed vertically into the adjusting seat (3); during the placement process, it is observed to ensure that the rainwater grating base (1) is inserted into the adjusting seat (3) and that the asphalt mixture (4) around the hole position is not deformed or collapsed by external force, the overlapping height of the adjusting section (11) at the lower end of the rainwater grating base (1) and the adjusting seat (3) is not less than 2 cm, the cross slope of the rainwater grating base (1) and the rainwater grating cover (2) is consistent with the cross slope of the road, and the rainwater grating base (1) and the rainwater grating cover (2) are 1-3 mm lower than the two side stones at the position close to the side stone and the flat stone, so that the rainwater grating base (1) does not accumulate water; S11. Vibration compaction: After the rainwater grating base (1) and the rainwater grating cover (2) are in place, the rainwater grating base (1) and the rainwater grating cover (2) are initially tamped with an impact tamper to make them flush with the surrounding asphalt mixture (4), and then a small roller is used to roll the rainwater grating base (1) and the rainwater grating cover (2) and the surrounding asphalt mixture back and forth for more than two times, the flatness is detected in a timely manner, local material is supplemented manually, and the joint is supplemented with fine material, the material is supplemented again with a plate tamper, the position close to the side stone is tamped with a plate tamper, and the above process is repeated to make the rainwater grating base (1) integrated with the asphalt mixture (4) and flush with the original road surface; during the material supplementing process, the asphalt and debris on the rainwater grating base (1) should be cleaned in a timely manner; S12. Opening traffic: After the replaced rainwater grating is accepted, the surface of the rainwater grating base (1) and the rainwater grating cover (2) and the surrounding area should be cleaned in a timely manner, watered to cool down, and then the surrounding barriers are removed when the temperature of the asphalt mixture (4) is lower than 50℃ to open the traffic.

7. The method of installing a rain gutter of claim 6, wherein: Before S1, a disease investigation step is provided; before construction, the original rainwater grating should be investigated in detail and numbered in sequence; the investigation content includes the number of the rainwater grating, the disease type, the material and size of the cover, and the ownership unit.

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