A municipal road drainage structure and construction method

Abstract

The present application relates to the field of municipal engineering, and specifically discloses a municipal road drainage structure and a construction method thereof, which includes a road main body, a drainage well opened on the road main body, and a drainage pipe buried in the road main body. The drainage well is communicated with the drainage pipe. A rain grate is installed on the road main body to cover the opening of the drainage well on the road main body. A filter plate is arranged in the drainage well, and the size of the water permeable openings on the filter plate is smaller than the size of the water permeable openings of the rain grate; a sewage collection cavity is opened on the road main body, and a cover plate is installed on the road main body to cover the opening of the sewage collection cavity on the road main body. A sewage discharge port communicated with the sewage collection cavity is opened on the inner wall of the drainage well. The filter plate is inclined, and the height of the end of the filter plate close to the sewage discharge port is lower than the height of the end of the filter plate far from the sewage discharge port. The low end of the filter plate is flush with the sewage discharge port. A sewage collection basket with an upward-facing basket opening is arranged in the sewage collection cavity, and the height of the sewage collection basket is smaller than the sewage discharge port. The present application has the effect of making the drainage pipe not easily blocked.

Description

Technical Field

[0001] This application relates to the field of municipal engineering, and particularly to a drainage structure and construction method for municipal roads. Background Art

[0002] To timely drain the precipitation on the road and ensure the normal passage of vehicles and pedestrians, a drainage structure needs to be set on the road to drain the water on the road surface into the underground drainage pipe.

[0003] In the related art, drainage wells are often opened on both sides of the road and connected to the underground drainage pipes. Then, by adding leaky rain grates on the road, the precipitation on the road surface can be drained into the underground drainage pipes through the drainage wells.

[0004] In the process of implementing this application, the inventor found that there are at least the following problems in this technology: when the precipitation is large, a large amount of dirt, such as leaves and stones, is mixed in the rainwater. After the sundries in the rainwater pass through the rain grates and enter the drainage pipes, it is easy to cause the drainage pipes to be blocked, thus affecting drainage, and improvement is needed. Summary of the Invention

[0005] In order to make the drainage pipes not easily blocked, this application provides a drainage structure and construction method for municipal roads.

[0006] In the first aspect, a drainage structure for municipal roads provided by this application adopts the following technical solution:

[0007] A drainage structure for municipal roads includes a road main body, a drainage well opened on the road main body, and a drainage pipe buried in the road main body. The drainage well is connected to the drainage pipe. A rain grate is installed on the road main body to cover the opening of the drainage well on the road main body. A filter plate is arranged in the drainage well, and the size of the water permeable openings on the filter plate is smaller than the size of the water permeable openings of the rain grate.

[0008] A sewage collection cavity extending in the vertical direction is opened on the road main body. A cover plate is installed on the road main body to cover the opening of the sewage collection cavity on the road main body. A sewage discharge port communicating with the sewage collection cavity is opened on the inner wall of the drainage well. The filter plate is inclined, the height of the end of the filter plate close to the sewage discharge port is lower than the height of the end of the filter plate far from the sewage discharge port, the low end of the filter plate is flush with the sewage discharge port, and a sewage collection basket with an upward opening is arranged in the sewage collection cavity. The height of the sewage collection basket is smaller than the sewage discharge port.

[0009] By adopting the above technical solution, when the rainfall is large, the rainwater grate blocks large debris such as branches and stones, and the rainwater carries smaller debris such as leaves and stones through the water-permeable opening of the rainwater grate and enters the drainage well. Since the size of the water-permeable opening on the filter plate is smaller than the size of the water-permeable opening of the rainwater grate, the leaves and stones are blocked by the filter plate after entering the drainage well, and the rainwater continues to flow downward through the water-permeable head of the filter plate and flows into the drainage pipe. The inclined filter plate guides dirt such as leaves and stones and part of the rainwater to the sewage outlet, so that dirt such as leaves and stones flows into the sewage collection basket in the sewage collection cavity through the sewage outlet. After the sewage collection basket is full of dirt, the cover plate can be opened, and then the sewage collection basket can be taken out of the sewage collection cavity, and the dirt in the sewage collection basket can be dumped.

[0010] Such an arrangement can further filter smaller dirt in the rainwater and collect the filtered dirt in a dirt collecting basket, thus avoiding as much as possible the blockage of the drain pipe by dirt mixed in the rainwater.

[0011] Optionally, a confluence chamber connected to the drainage well is opened on the bottom wall of the sewage collecting chamber, and the bottom wall of the confluence chamber is inclined. The height of the bottom wall of the confluence chamber increases gradually from close to the drainage well to away from the drainage well. A support rod is arranged on the wall of the sewage collecting chamber, and the support rod is located on the lower side of the sewage collecting net basket, and the sewage collecting basket is a net basket.

[0012] By adopting the above technical solution, the support rod and the cavity wall of the sewage chamber support the sewage collection basket to limit the sewage collection basket from falling. Since the sewage collection basket is a mesh basket, the rainwater entering the sewage collection basket along with the sewage can flow out from the mesh holes on the sewage collection basket and flow into the confluence cavity. The rainwater in the confluence cavity is guided to the drainage well through the cavity bottom wall of the confluence cavity and finally flows into the drainage pipe.

[0013] Such an arrangement, on the one hand, avoids rainwater from remaining in the dirt collection basket and thus encroaching on the space of the dirt collection basket for accommodating dirt, and on the other hand, helps rainwater to flow into the drain pipe.

[0014] Optionally, it also includes a storage basket with its basket opening facing upward, wherein the storage basket is a mesh basket, and the dirt collecting basket is slidably arranged in the storage basket. The dirt collecting basket is provided with a linkage mechanism for driving the dirt collecting basket to move upward, and when the dirt collecting basket is full of dirt, the dirt collecting basket moves to above the sewage outlet.

[0015] By adopting the above technical solution, in order to avoid rainwater clogging between the rainwater grate and the filter plate as much as possible, the filter plate needs to be set with a certain distance from the rainwater grate, and the filter plate is set at an angle, which leads to a distance between the sewage outlet and the road surface at one end, that is, there must be a certain space above the sewage outlet in the sewage collecting chamber.

[0016] By adding a reserve basket and a linkage mechanism, when the dirt collecting basket is full of dirt, the dirt collecting basket can be moved above the sewage outlet. At this time, the dirt transmitted to the sewage discharge cavity through the sewage outlet directly enters the reserve basket.

[0017] By configuring in this way, the space in the sewage collecting chamber above the sewage outlet can also play the role of loading sewage, thereby improving the space utilization rate of the sewage collecting chamber in the vertical direction.

[0018] The storage basket, which is also a mesh basket, allows the rainwater entering the dirt collection basket and the storage basket to continue to flow out downwards.

[0019] Optionally, the linkage mechanism includes a water tank, a pull rope, a first pulley, a second pulley, a water-permeable plate, a linkage plate and a water-blocking plate, the water tank is located at the lower side of the filter plate, the box mouth of the water tank faces upward, the first pulley is located above the filter plate, the first pulley is rotatably arranged on the inner wall of the drainage well, the second pulley is located above the dirt collection basket, the second pulley is rotatably arranged on the inner wall of the dirt collection chamber, the two ends of the pull rope are respectively arranged on the dirt collection basket and the water tank, and the pull rope is wound around the first pulley and the second pulley;

[0020] The permeable plate is slidably arranged in the dirt collecting box, a pulling spring for driving the permeable plate to move up is connected to the permeable plate, a linkage rod is connected to the lower side of the permeable plate, a linkage hole penetrating the dirt collecting basket is provided on the inner bottom wall of the dirt collecting basket, the linkage hole is used for the linkage rod to slide, a transmission hole penetrating the reserve basket is provided on the inner bottom wall of the reserve basket, a transmission rod is slidably arranged in the transmission hole, the transmission rod is connected to the linkage plate and is used to contact with the linkage rod, the linkage plate is located at the lower side of the reserve basket, a connecting spring for driving the linkage plate to move up is connected to the linkage plate, and the water blocking plate is connected to the linkage plate;

[0021] The water tank has a drainage hole connected to the inner cavity of the water tank on its outer wall near the sewage collecting cavity, and a water through hole connected to the drainage well is provided on the cavity wall of the sewage collecting cavity. The water blocking plate is slidably arranged on the cavity wall of the sewage collecting cavity and is used to open and close the water through hole.

[0022] When the water-permeable plate contacts the inner bottom wall of the dirt collecting basket, the water blocking plate covers the water hole; when the water tank is full of water and the water-permeable plate moves to the point where the water blocking plate covers the water hole, the dirt collecting basket moves to above the sewage outlet; when the water tank is not filled with water and the dirt collecting basket is not filled with dirt, the dirt collecting basket is located in the reserve basket, the water blocking plate is staggered with the water hole, and the drainage hole is connected with the water hole.

[0023] By adopting the above technical solution, after the dirt enters the dirt collection basket, it is pressed against the water-permeable plate. As the dirt accumulates on the water-permeable plate, the water-permeable plate resists the force of the lifting spring and moves downward, thereby driving the linkage rod to move downward. The linkage rod moves to press against the transmission rod to resist the force of the connecting spring and drive the transmission rod and the linkage plate to move downward, thereby driving the water-blocking plate to move downward until the water-permeable plate moves to cover the water hole with the water-blocking plate.

[0024] Part of the rainwater filtered by the filter plate flows into the water tank. When the water hole is opened, the water in the water tank flows out from the drainage hole and flows into the sewage collection chamber through the water hole, and finally flows back to the drainage well through the confluence chamber. That is, when the water hole is opened, the water tank cannot store water. When the water blocking plate covers the water hole, the water tank is relatively closed, and rainwater accumulates in the water tank until the water tank is full of water. Under the action of the gravity of the water tank and the water in the water tank, the water tank moves down and pulls the sewage collection basket and the dirt in the sewage collection basket upward through the pull rope.

[0025] With such an arrangement, the dirt collecting basket can be automatically moved upward after being loaded with a certain weight of dirt, that is, it can be automatically moved upward after being fully loaded, and the dirt can be subsequently loaded through the reserve basket.

[0026] Optionally, a fixing ring is sleeved on the upper end of the dirt collecting basket, a fixing groove is opened on the cavity wall of the dirt collecting cavity, a fixing assembly is arranged in the fixing groove, the fixing assembly includes a fixing block and a fixing spring connected to the fixing block, the fixing block is slidably arranged in the fixing groove, the fixing spring is used to drive the end of the fixing block to extend out of the fixing groove, the end of the fixing block is located on the moving path of the fixing ring, a moving inclined surface is opened on the end of the fixing block, the moving inclined surface faces downward and is used to interfere with the fixing ring.

[0027] By adopting the above technical solution, when the water tank is filled with water and the dirt collection basket is driven upward by the pull rope, the fixed ring moves upward with the dirt collection basket and presses against the moving inclined surface. As the fixed ring continues to move upward, the end of the fixed block moves into the fixed groove. After the fixed ring moves to the top of the fixed groove, under the action of the fixed spring, the fixed block is reset to the end of itself protruding from the fixed groove. At this time, the end of the fixed block is located below the dirt collection basket to support the fixed ring.

[0028] Such arrangement plays a role of supporting and limiting the reset of the dirt collecting basket after the dirt collecting basket moves upward.

[0029] Optionally, a limit stop is provided on the inner wall of the drainage well, and the limit stop is located at the lower side of the water tank. A reset cavity is opened on the inner wall of the drainage well, and the reset cavity is located at the lower side of the water hole. When the water tank collides with the limit stop, the drainage hole and the drainage well are both connected with the reset cavity.

[0030] By adopting the above technical solution, when the water tank is filled with water and moves downward, the limit stop plays a role in limiting, restricting the further downward movement of the water tank. At this time, the drain hole is aligned with the reset cavity. The water in the water tank first drains into the reset cavity through the drain hole, and then flows into the drain well from the reset cavity. The fixing component restricts the reset of the dirt collection basket.

[0031] With such a setting, after the dirt in the dirt collection basket is dumped, the water tank can be reset, facilitating subsequent use.

[0032] Optionally, guide sliders are provided on the inner wall of the drain well, and the guide sliders are in contact with the end face of the water tank away from the dirt collection cavity.

[0033] By adopting the above technical solution, through the guide sliders, on the one hand, it helps the water tank to slide, and on the other hand, it restricts the water tank from swinging in the direction away from the dirt collection cavity, so as to prevent the water tank from being misaligned with the water passing hole and when the water tank slides in the drain well, water leaks from the drain hole.

[0034] Secondly, a construction method of a municipal road drainage structure provided by the present application adopts the following technical solution:

[0035] A construction method of a municipal road drainage structure includes

[0036] S1: First, excavate a foundation pit on the road main body and bury the drain pipe, and then enclose the drain well, dirt collection cavity, confluence cavity and reset cavity by means of masonry;

[0037] S2: Chisel out the sewage outlet, water passing hole, communication port between the confluence cavity and the drain well, and communication hole for the pull rope to pass through;

[0038] S3: Install and fix the limit stop, guide slider and support rod;

[0039] S4: Install the filter plate, linkage mechanism, storage basket and dirt collection basket;

[0040] S5: Install the rain grate and cover plate.

[0041] By adopting the above technical solution, the filter plate secondary filters the rainwater entering the drain well and guides the filtered dirt to the dirt collection basket. The rainwater in the dirt collection basket flows out from the mesh holes of the dirt collection basket and flows back to the drain well through the confluence cavity. After the dirt collection basket is filled with dirt, the linkage mechanism can drive the dirt collection basket to move up above the sewage outlet so that subsequent dirt enters the storage basket.

[0042] With such a setting, it can not only avoid the drain pipe being blocked by the dirt mixed in the rainwater as much as possible, but also make full use of the space in the dirt collection cavity, extend the time interval for the staff to dump the dirt in the dirt collection basket as much as possible, and reduce the labor intensity of the staff.

[0043] In summary, the present application includes at least one of the following beneficial technical effects:

[0044] 1. It can filter the dirt in the rainwater for a second time, so as to block the dirt that is slightly smaller than the water permeable port of the rainwater grate, and collect the dirt into the dirt collection basket. Such a setting can avoid the drainage pipe being blocked by the dirt mixed in the rainwater as much as possible;

[0045] 2. Through the linkage mechanism and the reserve basket, the space in the dirt collection chamber and the vertical direction is fully utilized, which prolongs the time for the staff to dump the dirt in the dirt collection basket and reduces the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0047] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the present application.

[0048] Figure 3 It is a partial cross-sectional schematic diagram highlighting the drainage hole and the water through hole in the embodiment of the present application.

[0049] Figure 4 yes Figure 2 A magnified schematic diagram of center A.

[0050] Figure 5 yes Figure 2 A magnified schematic diagram of point B in the middle.

[0051] Description of reference numerals:

[0052] 1. Road body; 11. Drainage well; 111. Limit block; 112. Guide slide block; 12. Sewage collection chamber; 121. Support rod; 122. Fixed groove; 13. Sewage outlet; 14. Reset chamber; 15. Confluence chamber; 16. Water hole; 17. Drain pipe; 2. Rainwater grate; 3. Filter plate; 4. Cover plate; 5. Sewage collection basket; 51. Fixed ring; 52. Linkage hole; 6. Reserve basket; 61. Transmission hole; 62, connecting column; 7, linkage mechanism; 71, water tank; 711, drainage hole; 72, pull rope; 73, first pulley; 74, second pulley; 75, water-permeable plate; 751, lifting spring; 752, linkage rod; 76, linkage plate; 761, connecting spring; 762, transmission rod; 77, water-blocking plate; 8, fixing assembly; 81, fixing block; 811, moving inclined plane; 82, fixing spring. DETAILED DESCRIPTION

[0053] The following is combined with Figures 1-5 This application is described in further detail.

[0054] The present application embodiment discloses a municipal road drainage structure. Figure 1, Figure 2 , the municipal road drainage structure includes a road main body 1, a rainwater grate 2, a filter plate 3, a cover plate 4, a sewage collection basket 5, a reserve basket 6, and a linkage mechanism 7.

[0055] Refer to Figure 2 , Figure 3 , a drainage well 11 and a sewage collection chamber 12 are formed on the road main body 1. The drainage well 11 and the sewage discharge chamber both extend in the vertical direction. A sewage discharge port 13 and a reset chamber 14 are formed on the inner wall of the drainage well 11. The sewage discharge port 13 communicates with the sewage collection chamber 12. A confluence chamber 15 communicating with the drainage well 11 is formed on the bottom wall of the sewage collection chamber 12. The bottom wall of the confluence chamber 15 is inclined. The height of the bottom wall of the confluence chamber 15 increases in the direction from near the drainage well 11 to far from the drainage well 11. The reset chamber 14 is located below the confluence chamber 15. A water passing hole 16 communicating with the drainage well 11 is formed on the wall of the sewage collection chamber 12. The water passing hole 16 is located below the sewage discharge port 13. A drain pipe 17 is buried in the road main body 1. The drainage well 11 communicates with the inner cavity of the drain pipe 17.

[0056] Refer to Figure 1 , Figure 2 , both the rainwater grate 2 and the cover plate 4 are covered on the road main body 1. The rainwater grate 2 covers the opening of the drainage well 11 on the road main body 1, and the cover plate 4 covers the opening of the sewage collection chamber 12 on the road main body 1.

[0057] Refer to Figure 2 , the filter plate 3 is inclined and fixedly connected to the inner wall of the drainage well 11. One end of the filter plate 3 far from the sewage discharge port 13 is the highest end of the height of the filter plate 3, and one end of the filter plate 3 close to the sewage discharge port 13 is the lowest end of the height of the filter plate 3. The lower end of the filter plate 3 is flush with the sewage discharge port 13. The size of the water permeable openings on the filter plate 3 is smaller than the size of the water permeable openings of the rainwater grate 2, so that the filter plate 3 can filter and guide the dirt that can pass through the water permeable openings of the rainwater grate 2.

[0058] Refer to Figure 2 , Figure 4 , two support rods 121 are fixed on the wall of the sewage collection chamber 12. The two support rods 121 are arranged at intervals. Both the reserve basket 6 and the sewage collection basket 5 are slidably arranged in the sewage collection chamber 12 in the vertical direction. Both the reserve basket 6 and the sewage collection basket 5 are wire baskets with the basket mouths facing upward, and the sizes of the water permeable openings on the storage basket and the sewage collection basket 5 are not larger than the sizes of the water permeable holes on the filter plate 3. The sewage collection basket 5 is slidably arranged in the reserve basket 6. The heights of both the sewage collection basket 5 and the reserve basket 6 are smaller than the sewage discharge port 13. A fixing ring 51 is sleeved on the upper end of the sewage collection basket 5. The fixing ring 51 is integrally formed on the sewage collection basket 5.

[0059] Refer to Figure 2 , Figure 4, the linkage mechanism 7 is used to move the movable sewage collection basket 5 upward. When the sewage collection basket 5 is full of dirt, through the linkage mechanism 7, the sewage collection basket 5 moves above the sewage discharge port 13. The linkage mechanism 7 includes a water tank 71, a pull rope 72, a first pulley 73, a second pulley 74, a water permeable plate 75, a linkage plate 76 and a water blocking plate 77.

[0060] Refer to Figure 3 , the water tank 71 is slidably arranged vertically in the drainage well 11, and the water tank 71 is located below the filter plate 3. A limit stop 111 and a guide slider 112 are fixed on the inner wall of the drainage well 11. The outer wall of the water tank 71 close to the sewage collection cavity 12 fits against the inner wall of the drainage well 11, and the outer wall of the water tank 71 away from the sewage collection cavity 12 abuts against the guide slider 112. The mouth of the water tank 71 faces upward, and two drainage holes 711 communicating with the inner cavity of the water tank 71 are opened on the outer wall of the water tank 71 facing the sewage collection cavity 12, and the drainage holes 711 are located at the bottom end of the water tank 71. The two drainage holes 711 are respectively located on both sides of the opening where the confluence cavity 15 communicates with the drainage well 11. During the movement of the water tank 71, the opening where the confluence cavity 15 communicates with the drainage well 11 is always staggered from the two drainage holes 711. The water tank 71 can move to make the drainage holes 711 communicate with the water passing holes 16, and the water tank 71 can also move to make the drainage holes 711 communicate with the reset cavity 14. The limit stop 111 is located below the water tank 71. When the water tank 71 abuts against the limit stop 111, the drainage holes 711 communicate with the reset cavity 14.

[0061] Refer to Figure 2 , Figure 3 , the first pulley 73 is rotatably arranged on the inner wall of the drainage well 11, and the first pulley 73 is located above the filter plate 3. The second pulley 74 is rotatably arranged on the inner wall of the sewage collection cavity 12, and the second pulley 74 is located above the sewage collection basket 5. One end of the pull rope 72 is fixed on the water tank 71, and the other end of the pull rope 72 is fixed on the fixing ring 51. The pull rope 72 is wound around the first pulley 73 and the second pulley 74. The pull rope 72 passes through the filter plate 3 in the vertical direction, and the pull rope 72 also passes through the drainage well 11 to the sewage collection cavity 12 in the horizontal direction. In other embodiments, a connecting rope connecting the sewage collection basket 5 and the reserve basket 6 can be added to facilitate the removal of the reserve basket 6 from the sewage collection cavity 12.

[0062] Refer to Figure 4, the water-permeable plate 75 is slidably arranged vertically in the sewage collection basket 5. A plurality of lifting springs 751 that telescopically extend vertically are arranged on the water-permeable plate 75. The two ends of the lifting spring 751 are respectively connected to the water-permeable plate 75 and the sewage collection basket 5. The pull rope 72 spring is used to drive the water-permeable plate 75 to move upward. When the lifting spring 751 is in a natural state, there is a spacing between the water-permeable plate 75 and the inner bottom wall of the sewage collection basket 5. A linkage rod 752 is fixed on the bottom wall of the water-permeable plate 75. A linkage hole 52 that penetrates the sewage collection basket 5 is opened on the inner bottom wall of the sewage collection basket 5. The linkage hole 52 extends vertically. The linkage rod 752 is slidably arranged in the linkage hole 52, and the length of the linkage rod 752 is greater than the wall thickness of the bottom wall of the sewage collection basket 5.

[0063] Refer to Figure 3 , Figure 4 , the linkage plate 76 is located below the reserve basket 6. A plurality of connecting springs 761 are arranged on the linkage plate 76. The connecting springs 761 telescopically extend vertically. The two ends of the connecting spring 761 are respectively fixed on the upper end surface of the linkage plate 76 and the lower end surface of the reserve basket 6. A transmission rod 762 is fixed on the upper end surface of the linkage plate 76. The transmission rod 762 is used to contact the linkage rod 752. A transmission hole 61 that penetrates the reserve basket 6 is opened on the inner bottom wall of the reserve basket 6. The transmission hole 61 extends vertically. The transmission hole 61 is used for the linkage rod 752 to extend into and be slidably arranged. The end of the transmission rod 762 is always slidably arranged in the transmission hole 61 and blocks the opening of the transmission hole 61 on the lower end surface of the reserve basket 6. The water-blocking plate 77 is fixed on the side of the linkage plate 76 facing the drainage well 11. The water-blocking plate 77 is attached to the inner wall of the sewage collection cavity 12 close to the drainage well 11. The water-blocking plate 77 is slidably arranged vertically on the cavity wall of the sewage collection cavity 12 and is used to open and close the water-passing hole 16. When the connecting spring 761 is in a natural state, the water-blocking plate 77 is located above the water-passing hole 16.

[0064] Refer to Figure 3 , Figure 4 , two connecting columns 62 with a "T" cross-section are arranged below the reserve basket 6. The end with a smaller diameter of the connecting column 62 is fixed on the reserve basket 6 and penetrates the linkage plate 76 vertically. The end with a larger diameter of the connecting column 62 is located below the linkage plate 76 and is used to contact the linkage plate 76. When the linkage plate 76 contacts the end with a larger diameter of the connecting column 62, the water-blocking plate 77 shields the water-passing hole 16.

[0065] Refer to Figure 3 , Figure 4, when the water-permeable plate 75 abuts against the inner bottom wall of the sewage collection basket 5, the water-blocking plate 77 shields the water-passing hole 16; when the water tank 71 is filled with water and the water-permeable plate 75 moves to the position where the water-blocking plate 77 shields the water-passing hole 16, the sewage collection basket 5 moves above the sewage discharge port 13; when there is no water in the water tank 71 and no dirt in the sewage collection basket 5, the sewage collection basket 5 is located inside the reserve basket 6, the water-blocking plate 77 is staggered from the water-passing hole 16, and the drain hole 711 is communicated with the water-passing hole 16. During the test, leaves are used as the dirt.

[0066] Refer to Figure 2 , Figure 5 , on the cavity walls of the sewage collection cavity 12 close to and away from the drainage well 11, a plurality of fixing grooves 122 extending in the horizontal direction are formed, and the heights of the fixing grooves 122 are the same. A fixing component 8 is arranged in each fixing groove 122, and the fixing component 8 includes a fixing block 81 and a fixing spring 82. The fixing block 81 is slidably arranged in the fixing groove 122 in the horizontal direction, and the two ends of the fixing spring 82 are respectively fixedly connected with the bottom of the fixing groove 122 and the end face of the fixing block 81 facing the bottom of the fixing groove 122. When the fixing spring 82 is in the natural state, the end of the fixing block 81 is located outside the fixing groove 122. A moving inclined surface 811 is provided at the end of the fixing block 81 away from the fixing spring 82, and the moving inclined surface 811 faces downward and is used for abutting against the fixing ring 51. When the water tank 71 abuts against the limit stop 111, the fixing ring 51 is located above the fixing component 8.

[0067] The implementation principle of the municipal road drainage structure in the embodiment of the present application is as follows: when the rainfall is large, the rainwater carries dirt such as leaves and stones through the water-passing openings of the rain grate 2 and enters the drainage well 11. The filter plate 3 filters the rainwater for the second time, blocking the leaves and stones on the filter plate 3 while ensuring the normal leakage of the rainwater. Under the guiding action of the filter plate 3, the leaves and stones move through the sewage discharge port 13 into the sewage collection cavity 12 and finally fall onto the water-permeable plate 75 in the sewage collection basket 5. As the dirt accumulates on the water-permeable plate 75, the water-permeable plate 75 moves downward, driving the linkage rod 752 to move downward. During the movement of the linkage rod 752, it presses against the transmission rod 762 and drives the linkage plate 76 and the water-blocking plate 77 to move downward through the transmission rod 762 until the water-permeable plate 75 abuts against the inner bottom wall of the sewage collection basket 5. At this time, the water-blocking plate 77 shields the water-passing hole 16.

[0068] Before the water-blocking plate 77 shields the water-passing hole 16, the rainwater entering the water tank 71 flows into the sewage collection chamber 12 through the drain hole 711 and the water-passing hole 16, and finally flows back to the drainage well 11 through the confluence chamber 15. After the water-blocking plate 77 shields the water-passing hole 16, the rainwater in the water tank 71 accumulates until the gravity of the water in the water tank 71 and the water tank 71 is greater than the gravity of the sewage collection basket 5, the dirt in the sewage collection basket 5, the fixing ring 51, the water-permeable plate 75, the lifting spring 751, and the linkage rod 752. Then the water tank 71 moves downward and drives the sewage collection basket 5 to rise. During the rising process of the sewage collection basket 5, the fixing ring 51 presses against the moving inclined surface 811 and drives the end of the fixing block 81 to completely move into the fixing groove 122 until the fixing ring 51 moves to the upper side of the fixing groove 122. At this time, the end of the fixing block 81 is reset below the fixing ring 51 under the action of the fixing spring 82 to support the fixing ring 51, and at this time the sewage collection basket 5 is located above the sewage discharge port 13, so that subsequent dirt... The water tank 71 moves downward until it abuts against the limit stop block 111. At this time, the drain hole 711 is communicated with the reset chamber 14, and the water in the water tank 71 is discharged into the reset chamber 14 through the drain hole 711 and flows into the drainage well 11 from the reset chamber 14, so as to facilitate the reset of the water tank 71 and the sewage collection basket 5 after dumping the dirt.

[0069] With such a setting, the rainwater is filtered twice and the dirt is collected, so that the drain pipe 17 is not easily blocked.

[0070] The embodiment of the present application also discloses a construction method of a municipal road drainage structure. The construction method of the municipal road drainage structure includes the following steps

[0071] S1: First, excavate a foundation pit on the road main body 1 and bury the drain pipe 17, and then enclose the drainage well 11, the sewage collection chamber 12, the confluence chamber 15, and the reset chamber 14 by means of masonry;

[0072] S2: Chisel out the sewage discharge port 13, the water-passing hole 16, the fixing groove 122, the communication port between the confluence chamber 15 and the drainage well 11, and the communication hole for the pull rope 72 to pass through;

[0073] S3: Install and fix the limit stop block 111, the guide slider 112, and the support rod 121;

[0074] S4: Install the filter plate 3, the linkage mechanism 7, the reserve basket 6, the sewage collection basket 5, and the fixing component 8;

[0075] S5: Install the rainwater grate 2 and the cover plate 4.

[0076] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A municipal road drainage structure, comprising a road main body, a drainage well opened on the road main body, and a drainage pipe buried in the road main body. The drainage well is communicated with the drainage pipe. A rain grate for covering the opening of the drainage well on the road main body is installed on the road main body. It is characterized in that: A filter plate is provided in the drainage well, and the size of the water permeable openings on the filter plate is smaller than that of the water permeable openings of the rain grate. A sewage collection cavity extending in the vertical direction is formed on the main road body. A cover plate covering the opening of the sewage collection cavity on the main road body is installed on the main road body. A sewage discharge port communicating with the sewage collection cavity is formed on the inner wall of the drainage well. The filter plate is inclined, and the height of the end of the filter plate close to the sewage discharge port is lower than the height of the end of the filter plate far from the sewage discharge port. The lower end of the filter plate is flush with the sewage discharge port. A sewage collection basket with an upward-facing basket opening is arranged in the sewage collection cavity, and the height of the sewage collection basket is smaller than that of the sewage discharge port. A confluence cavity communicating with the drainage well is formed on the bottom wall of the sewage collection cavity. The bottom wall of the confluence cavity is inclined, and the height of the bottom wall of the confluence cavity increases in the direction from close to the drainage well to far from the drainage well. A support rod is arranged on the cavity wall of the sewage collection cavity, and the support rod is located below the sewage collection net basket. The sewage collection basket is a net basket. It further includes a reserve basket with an upward-facing basket opening. The reserve basket is a net basket. The sewage collection basket is slidably arranged in the reserve basket. A linkage mechanism for driving the sewage collection basket to move upward is arranged on the sewage collection basket. When the sewage collection basket is filled with dirt, the sewage collection basket moves above the sewage discharge port. The linkage mechanism includes a water tank, a pull rope, a first pulley, a second pulley, a water permeable plate, a linkage plate, and a water blocking plate. The water tank is located below the filter plate, and the tank opening of the water tank faces upward. The first pulley is located above the filter plate and is rotatably arranged on the inner wall of the drainage well. The second pulley is located above the sewage collection basket and is rotatably arranged on the inner wall of the sewage collection cavity. The two ends of the pull rope are respectively arranged on the sewage collection basket and the water tank, and the pull rope is wound around the first pulley and the second pulley. The water permeable plate is slidably arranged in the sewage collection box. A lifting spring for driving the water permeable plate to move upward is connected to the water permeable plate. A linkage rod is connected to the lower side of the water permeable plate. A linkage hole penetrating the sewage collection basket is formed on the inner bottom wall of the sewage collection basket, and the linkage hole is used for the linkage rod to slide. A transmission hole penetrating the reserve basket is formed on the inner bottom wall of the reserve basket, and a transmission rod is slidably arranged in the transmission hole. The transmission rod is connected to the linkage plate and is used for abutting against the linkage rod. The linkage plate is located below the reserve basket. A connecting spring for driving the linkage plate to move upward is connected to the linkage plate. The water blocking plate is connected to the linkage plate. A drainage hole communicating with the inner cavity of the water tank is formed on the outer wall of the water tank close to the sewage collection cavity. A water passing hole communicating with the drainage well is formed on the cavity wall of the sewage collection cavity. The water blocking plate is slidably arranged on the cavity wall of the sewage collection cavity and is used for opening and closing the water passing hole. When the water permeable plate abuts against the inner bottom wall of the sewage collection basket, the water blocking plate shields the water passing hole; when the water tank is filled with water and the water permeable plate moves to the position where the water blocking plate shields the water passing hole, the sewage collection basket moves above the sewage discharge port; when there is no water in the water tank and no dirt in the sewage collection basket, the sewage collection basket is located in the reserve basket, the water blocking plate is staggered from the water passing hole, and the drainage hole is connected to the water passing hole.

2. The municipal road drainage structure according to claim 1, characterized in that: A fixing ring is sleeved on the upper end of the sewage collection basket. A fixing groove is formed in the wall of the sewage collection cavity. A fixing component is arranged in the fixing groove. The fixing component includes a fixing block and a fixing spring connected to the fixing block. The fixing block is slidably arranged in the fixing groove. The fixing spring is used to drive the end of the fixing block to extend out of the fixing groove. The end of the fixing block is located on the moving path of the fixing ring. A moving inclined surface is formed on the end of the fixing block. The moving inclined surface faces downward and is used to abut against the fixing ring.

3. A municipal road drainage structure according to claim 1, characterized in that: A limiting stop block is arranged on the inner wall of the drainage well. The limiting stop block is located below the water tank. A reset cavity is formed in the inner wall of the drainage well. The reset cavity is located below the water passing hole. When the water tank abuts against the limiting stop block, the drainage hole and the drainage well are both communicated with the reset cavity.

4. A municipal road drainage structure according to claim 1, characterized in that: A guide slider is arranged on the inner wall of the drainage well. The guide slider abuts against the end face of the water tank away from the sewage collection cavity.

5. The construction method of a municipal road drainage structure according to claim 1, characterized in that: It includes the following steps: S1: First, excavate a foundation pit on the road main body and bury a drainage pipe, and then enclose the drainage well, the sewage collection cavity, the confluence cavity and the reset cavity by means of masonry; S2: Chisel out the sewage discharge port, the water passing hole, the communication port between the confluence cavity and the drainage well, and the communication hole for the pulling rope to pass through; S3: Install and fix the limiting stop block, the guide slider and the support rod; S4: Install the filter plate, the linkage mechanism, the storage basket and the sewage collection basket; S5: Install the rain grate cover plate.

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