A filtering device for road drainage in municipal engineering

Abstract

The present invention discloses a filtering device for municipal engineering road drainage, and relates to the field of filtering devices. The filtering device for municipal engineering road drainage comprises a filtering horizontal barrel, which is arranged inside a filtering box, a rotating mesh plate is rotatably arranged inside the filtering horizontal barrel, a supporting block is movably arranged inside the filtering horizontal barrel, the rotating mesh plate is arranged outside the supporting block, a dust collecting box is arranged below the filtering horizontal barrel, a mobile box is movably arranged inside the dust collecting box, gravity springs are arranged on both sides of the mobile box, an opening and closing plate is rotatably arranged inside the mobile box, and the opening and closing plate is used for opening and closing the side position of the dust collecting box. The filtering device for municipal engineering road drainage drives the rotating mesh plate to move by the gravity of impurities, so that the impurities directly fall into the inside of the mobile box, thereby increasing the filtering efficiency of rainwater, and the mobile box will impact the opening and closing plate after moving to a certain position, and automatically complete the discharge of impurities.

Description

Technical Field

[0001] The invention relates to the technical field of filtering devices, in particular to a filtering device for road drainage in municipal engineering. Background Art

[0002] There are drainage projects underground in municipal engineering projects that are specifically designed to deal with heavy rain seasons. A large amount of impurities will be mixed in during the drainage process. These impurities will flow into the drainage pipe along with the water and be collected in one place. In order to prevent the unobstructed water flow and the reuse of rainwater, a filtering device is needed to filter the rainwater collected by the drainage.

[0003] The existing drainage filtration devices have the problem of low filtration effect and impurities in the filtration cannot be automatically and effectively collected;

[0004] The reason for this problem is that a large amount of impurities such as leaves, stones and debris will be mixed in the road drainage process. In order to facilitate the reuse and discharge of rainwater in the later stage, the collected rainwater needs to be filtered. The existing filtering device is usually a group of mesh filter devices, which has a simple filtering structure and the impurities in the rainwater vary in size. Impurities are easily stuck in the internal gaps of the mesh. Therefore, during the filtering process, half of the water is filtered and transmitted to the inside of the outlet pipe, and the other half of the water is needed to wash away the impurities filtered from above the mesh. At this time, the proportion of rainwater is still greater than that of impurities, which causes a large amount of rainwater to be discharged along with the impurities, and only a small amount of water is filtered and reused, which reduces the efficiency of rainwater filtration. In addition, there is still a large amount of water and impurity mixture in the pipe, which is not only inconvenient to collect the impurities uniformly, but also causes the filtered water and impurities to occupy a large amount of space, thereby causing the collection and discharge of impurities in the later stage. Therefore, we propose a filtering device for municipal engineering road drainage. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the shortcomings of the prior art, the present invention discloses a filtering device for municipal engineering road drainage to solve the problem mentioned in the above background technology that the existing drainage filtering device has low filtering effect and impurities in the filtration cannot be automatically and effectively collected.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a filtering device for road drainage in municipal engineering, comprising a filter box, a filter unit and a dust collecting unit are arranged inside the filter box, comprising a filter horizontal barrel, the filter horizontal barrel is arranged inside the filter box, a rotating mesh plate is rotatably arranged inside the filter horizontal barrel, a supporting block is movably arranged on the inner side of the filter horizontal barrel, the rotating mesh plate is arranged outside the supporting block, and the rotating mesh plate squeezes the supporting block by the weight of impurities accumulated above, and a dust collecting unit, comprising a dust box, the dust box is arranged below the filter horizontal barrel, a movable box is movably arranged inside the dust box, gravity springs are arranged on both sides of the movable box, an opening and closing plate is rotatably arranged inside the movable box, and the opening and closing plate is used for opening and closing the side position of the dust box.

[0009] Preferably, a support plate is provided inside the filter box, a filter vertical barrel is provided above the support plate, a water inlet pipe is fixedly connected to the bottom end of the filter vertical barrel, the water inlet pipe is plugged into the filter box, a center pipe is provided inside the filter vertical barrel, an inclined mesh plate is fixedly connected to the top end of the center pipe, the inclined mesh plate is fixedly connected to the inner side of the filter vertical barrel, a water outlet pipe is plugged into the side of the filter vertical barrel, the center pipe is plugged into the support plate, and the center pipe is plugged into the inside of the filter horizontal barrel.

[0010] Preferably, the interior of the filter horizontal barrel is fixedly connected to a supporting round rod, the interior of the supporting round rod is rotatably connected to a rotating round tube, the exterior of the rotating round tube is fixedly connected to a filter net barrel, the rotating mesh plate is fixedly connected to the exterior of the filter net barrel, and the side of the rotating mesh plate is fixedly connected to a movable block.

[0011] Preferably, a support box is fixedly connected to the side of the filter horizontal barrel, the support block is slidably connected to the inside of the support box, the support block is movably inserted into the inside of the filter horizontal barrel, the inside of the support box is fixedly connected to a support telescopic rod, the outside of the support telescopic rod is movably sleeved with a support spring, the support telescopic rod is fixedly connected to the side of the support block, the support spring is fixedly connected to the side of the support block, the other end of the support spring is fixedly connected to the inner side of the support box, and the movable block is in contact with the outside of the support block.

[0012] Preferably, a connecting pipe is inserted into the inner bottom of the filtering horizontal barrel, and an auxiliary box is fixedly connected to the side of the connecting pipe, and the auxiliary box is fixedly connected to the bottom of the filtering horizontal barrel. A stop block is slidably provided inside the auxiliary box, and an auxiliary telescopic rod is fixedly connected to the lower surface of the stop block. The bottom end of the auxiliary telescopic rod is fixedly connected to the inside of the auxiliary box, and an auxiliary spring is movably sleeved on the outside of the auxiliary telescopic rod. The bottom end of the auxiliary spring is fixedly connected to the inside of the auxiliary box, and the top of the auxiliary spring is fixedly connected to the lower surface of the stop block, and the movable block is in contact with the outside of the stop block.

[0013] Preferably, an impurity dredging pipe is inserted into the interior of the filtering horizontal barrel, and the impurity dredging pipe is arranged inside the dust box. The bottom of the movable box is fixedly connected to a support frame, and the support frame is movably arranged inside the dust box. Both sides of the support frame are fixedly connected to movable plates, and the movable plates are slidably connected to the interior of the dust box.

[0014] Preferably, the dust collecting box is fixedly connected to a connecting box on both sides, the connecting box is fixedly connected to the inner side of the filter box, the movable plate is slidably connected to the inside of the connecting box, the inside of the connecting box is fixedly connected to a limiting rod, the movable plate is movably sleeved on the outside of the limiting rod, the gravity spring is fixedly connected to the lower surface of the movable plate, the gravity spring is movably sleeved on the outside of the limiting rod, and the bottom end of the gravity spring is fixedly connected to the inner bottom of the connecting box.

[0015] Preferably, both sides of the dust collecting box are fixedly connected with a waterproof outer frame, the outside of the movable plate is fixedly connected with a baffle, the baffle is slidably connected to the inside of the waterproof outer frame, the movable plate is movably arranged outside the waterproof outer frame, and the baffle is movably plugged into the inside of the connecting box.

[0016] Preferably, a connecting rod is fixedly connected to the inside of the movable box, the opening and closing plate is movably sleeved on the outside of the connecting rod, a waterproof strip is fixedly connected to the inside of the movable box, the outer surface of the opening and closing plate is abutted against the outside of the waterproof strip, and the opening and closing plate is movably arranged on the inner side of the dust collecting box.

[0017] Preferably, a discharge pipe is provided on the side of the dust box, the opening and closing plate is movably arranged inside the discharge pipe, the movable box is arranged above the discharge pipe, the water outlet pipe is arranged on the side of the connecting pipe, and the water outlet pipe is inserted into the interior of the filter box.

[0018] The present invention discloses a filtering device for municipal engineering road drainage, which has the following beneficial effects:

[0019] 1. The filtering device for road drainage of municipal engineering discharges the rainwater-impurity mixture into the interior of the filtering horizontal barrel through the central pipe. At this time, the rainwater-impurity mixture will fall on the top of the rotating mesh plate. When the impurities on the rotating mesh plate accumulate to a certain extent, they will be squeezed out of the outside of the supporting block and rotate. The rotating mesh plate will drive the accumulated impurities to fall into the interior of the mobile box during rotation. By arranging a rotating mesh plate inside the filtering horizontal barrel, the rotating mesh plate is driven to move by the gravity of the impurities, so that the impurities fall directly into the interior of the mobile box, increasing the accumulation ratio of impurities inside the mobile box, and increasing the time for impurities to stay and accumulate, so that more rainwater can enter the interior of the connecting pipe, thereby increasing the filtration efficiency of rainwater and facilitating the unified collection of impurities in the later stage.

[0020] 2. In the filtering device for road drainage of municipal engineering, impurities enter the interior of the mobile box from the inside of the impurity dredging pipe. When the impurities inside the mobile box accumulate to a certain extent, the proportion of the impurities is greater than the proportion of rainwater, so that the mobile box moves downward and squeezes the gravity spring. When the mobile box drives the opening and closing plate to move to the side opening position of the dust collecting box, the impact of the impurities causes the opening and closing plate to open, so that the impurities are automatically discharged. By arranging gravity springs on both sides of the mobile box, the weight of the mobile box will increase when the impurities inside the mobile box accumulate to a certain proportion, so that the mobile box moves downward and squeezes the gravity spring. After the mobile box moves to a certain position, it will impact the opening and closing plate, so that the opening and closing plate opens and the impurities are discharged, and the impurities are automatically discharged.

[0021] 3. The filtering device for road drainage in the municipal engineering project transports rainwater to the interior of the filter vertical barrel through the water inlet pipe. At this time, the inclined mesh plate inside the filter vertical barrel intercepts impurities in the rainwater above the inclined mesh plate. The filtered rainwater will flow from the outside of the central pipe to the inside of the outlet pipe. At this time, part of the rainwater will flush the impurities above the inclined mesh plate into the interior of the central pipe. At this time, the rainwater-impurity mixture will enter the interior of the filter horizontal barrel along the central pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the interior of the filter box of the present invention;

[0024] Figure 3 This is a cross-sectional view of the interior of the vertical filtration barrel of the present invention;

[0025] Figure 4 This is a schematic diagram of the interior of the filtering horizontal barrel of the present invention;

[0026] Figure 5 This is an external exploded view of the filter screen barrel of the present invention;

[0027] Figure 6 This is an external exploded view of the rotating screen plate of the structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the exterior of the dust collecting box of the present invention;

[0029] Figure 8 This is an exploded view of the interior of the structural connection box of the present invention;

[0030] Fig. 9 This is an external exploded view of the structural baffle of the present invention;

[0031] Fig.10 This is a cross-sectional view of the interior of the dust collecting box of the present invention;

[0032] Fig.11This is a schematic diagram of the exterior of the structural moving box of the present invention;

[0033] Fig.12 This is an exploded view of the interior of the structural moving box of the present invention.

[0034] In the figure: 1. filter box; 101. water inlet pipe; 102. filter vertical barrel; 103. support plate; 104. water outlet pipe; 105. center pipe; 106. inclined mesh plate; 2. filter horizontal barrel; 201. rotating mesh plate; 202. support block; 203. support spring; 204. rotating round tube; 205. filter net barrel; 206. support round rod; 207. movable block; 208. stop block; 209. auxiliary telescopic rod; 210. auxiliary Spring; 211, auxiliary box; 212, supporting telescopic rod; 213, supporting box; 214, impurity clearing pipe; 215, connecting pipe; 3, dust collecting box; 301, moving box; 302, gravity spring; 303, opening and closing plate; 304, connecting box; 305, supporting frame; 306, waterproof strip; 307, connecting rod; 308, moving plate; 309, baffle; 310, limiting rod; 311, waterproof outer frame; 312, discharge pipe. DETAILED DESCRIPTION

[0035] The embodiment of the present invention discloses a filtering device for drainage of municipal engineering roads, such as Figure 1-7 As shown, in order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the present invention and by way of example.

[0036] like Figure 1-12 A filtering device for road drainage in a municipal engineering project is shown, comprising a filter box 1, wherein a filter unit and a dust collecting unit are arranged inside the filter box 1, and the filter box 1 comprises a filter barrel 2, wherein the filter barrel 2 is arranged inside the filter box 1, wherein a rotating mesh plate 201 is rotatably arranged inside the filter barrel 2, wherein a supporting block 202 is movably arranged on the inner side of the filter barrel 2, wherein the rotating mesh plate 201 is arranged outside the supporting block 202, wherein the rotating mesh plate 201 squeezes the supporting block 202 by the weight of impurities accumulated above, and comprises a dust collecting box 3, wherein the dust collecting box 3 is arranged below the filter barrel 2, wherein a movable box 301 is movably arranged inside the dust collecting box 3, wherein gravity springs 302 are arranged on both sides of the movable box 301, wherein an opening and closing plate 303 is rotatably arranged inside the movable box 301, and wherein the opening and closing plate 303 is used for opening and closing the side position of the dust collecting box 3.

[0037] A support plate 103 is provided inside the filter box 1, and a filter vertical barrel 102 is provided above the support plate 103. The top of the filter vertical barrel 102 is fixedly connected with an inlet pipe 101, and the inlet pipe 101 is plugged into the inside of the filter box 1. A central pipe 105 is provided inside the filter vertical barrel 102, and the top of the central pipe 105 is fixedly connected with an inclined mesh plate 106, and the inclined mesh plate 106 is fixedly connected to the inner side of the filter vertical barrel 102. A water outlet pipe 104 is plugged into the side of the filter vertical barrel 102, and the central pipe 105 is plugged into the inside of the support plate 103, and the central pipe 105 is plugged into the inside of the filter horizontal barrel 2.

[0038] The interior of the filter horizontal barrel 2 is fixedly connected with a supporting round rod 206, and the interior of the supporting round rod 206 is rotatably connected with a rotating circular tube 204, and the exterior of the rotating circular tube 204 is fixedly connected with a filter barrel 205, and the rotating mesh plate 201 is fixedly connected to the exterior of the filter barrel 205, and the side of the rotating mesh plate 201 is fixedly connected with a movable block 207, and the side of the filter horizontal barrel 2 is fixedly connected with a support box 213, and the support block 202 is slidably connected to the interior of the support box 213, and the support block 202 is movably inserted into the interior of the filter horizontal barrel 2, and the interior of the support box 213 is fixedly connected with a supporting telescopic rod 212, and the exterior of the supporting telescopic rod 212 is movably sleeved with a supporting spring 203, and the supporting telescopic rod 212 is fixedly connected to the side of the supporting block 202, and the supporting spring 203 is fixedly connected to the side of the supporting block 202, and the other end of the supporting spring 203 is fixedly connected to the inner side of the support box 213, and the movable block 207 contacts the exterior of the supporting block 202.

[0039] A connecting tube 215 is inserted into the inner bottom of the filtering horizontal barrel 2, and an auxiliary box 211 is fixedly connected to the side of the connecting tube 215. The auxiliary box 211 is fixedly connected to the bottom of the filtering horizontal barrel 2. A stop block 208 is slidably provided inside the auxiliary box 211. An auxiliary telescopic rod 209 is fixedly connected to the lower surface of the stop block 208. The bottom end of the auxiliary telescopic rod 209 is fixedly connected to the inside of the auxiliary box 211. An auxiliary spring 210 is movably sleeved on the outside of the auxiliary telescopic rod 209. The bottom end of the auxiliary spring 210 is fixedly connected to the inside of the auxiliary box 211. The top of the auxiliary spring 210 is fixedly connected to the lower surface of the stop block 208. The movable block 207 is in contact with the outside of the stop block 208.

[0040] The interior of the filtering horizontal barrel 2 is plugged with an impurity dredging pipe 214, which is arranged inside the dust collecting box 3. The bottom of the movable box 301 is fixedly connected with a support frame 305, and the support frame 305 is movably arranged inside the dust collecting box 3. Both sides of the support frame 305 are fixedly connected with movable plates 308, and the movable plates 308 are slidably connected to the interior of the dust collecting box 3. Both sides of the dust collecting box 3 are fixedly connected with a connecting box 304, and the connecting box 304 is fixedly connected to the inner side of the filtering box 1, and the movable plate 308 is slidably connected to the interior of the connecting box 304. The interior of the connecting box 304 is fixedly connected with a limiting rod 310, and the movable plate 308 is movably sleeved on the outside of the limiting rod 310. The gravity spring 302 is fixedly connected to the lower surface of the movable plate 308, and the gravity spring 302 is movably sleeved on the outside of the limiting rod 310. The bottom end of the gravity spring 302 is fixedly connected to the inner bottom of the connecting box 304.

[0041] The dust box 3 is fixedly connected with a waterproof outer frame 311 on both sides, the outer side of the movable plate 308 is fixedly connected with a baffle 309, the baffle 309 is slidably connected to the inside of the waterproof outer frame 311, the movable plate 308 is movably arranged on the outside of the waterproof outer frame 311, the baffle 309 is movably inserted into the inside of the connecting box 304, the inside of the movable box 301 is fixedly connected with a connecting rod 307, the opening and closing plate 303 is movably sleeved on the outside of the connecting rod 307, the inner side of the movable box 301 is fixedly connected with a waterproof strip 306, the outer surface of the opening and closing plate 303 is against the outside of the waterproof strip 306, the opening and closing plate 303 is movably arranged on the inner side of the dust box 3, a discharge pipe 312 is arranged on the side of the dust box 3, the opening and closing plate 303 is movably arranged inside the discharge pipe 312, the movable box 301 is arranged above the discharge pipe 312, the water outlet pipe 104 is arranged on the side of the connecting pipe 215, and the water outlet pipe 104 is inserted into the inside of the filter box 1.

[0042] The rainwater is transported to the interior of the filter vertical barrel 102 through the water inlet pipe 101. At this time, the inclined mesh plate 106 inside the filter vertical barrel 102 intercepts impurities in the rainwater above the inclined mesh plate 106. The filtered rainwater will flow from the outside of the central tube 105 to the inside of the water outlet pipe 104. At this time, part of the rainwater will flush the impurities above the inclined mesh plate 106 to the inside of the central tube 105. At this time, the rainwater-impurity mixture will enter the interior of the filter horizontal barrel 2 along the central tube 105. The filter vertical barrel 102 performs preliminary filtration on the rainwater to ensure a Half of the rainwater is filtered by the filter vertical barrel 102 and discharged from the filter box 1 along the outlet pipe 104. The support plate 103 supports the position of the filter vertical barrel 102 so that the filter vertical barrel 102 can be above the filter horizontal barrel 2. The inclined mesh plate 106 is a circular inclined plate, thereby ensuring that after half of the water flow is filtered, the other half of the water flow can flush the impurities filtered above the inclined mesh plate 106 into the center tube 105, preventing the impurities above the inclined mesh plate 106 from being flushed into the mesh by the water flow, thereby reducing the impurities stuck in the inclined mesh plate 106.

[0043] The rainwater impurity mixture is discharged into the interior of the filtering horizontal barrel 2 through the central tube 105, and the rainwater impurity mixture will fall on the top of the rotating mesh plate 201, and the water will flow to the bottom of the filtering horizontal barrel 2 through the rotating mesh plate 201, and then enter the interior of the connecting pipe 215, and the filtered water will also flow to the interior of the dust box 3. The interior of the dust box 3 is in a closed state. After the water flow in the dust box 3 accumulates to a certain extent, it will also backflow, causing the water to flow to the interior of the connecting pipe 215 again. After the impurities on the rotating mesh plate 201 accumulate to a certain extent, they will move downward and drive the filtering net barrel 205 and the rotating circular tube 204 to rotate. At this time, the rotating circular tube 204 will rotate on the outside of the supporting round rod 206, and the filtering net barrel 205 will be rotated. The filtration area can be increased, thereby increasing the flow rate of water, so that the water can flow directly to the inside of the connecting pipe 215, and the rotating mesh plate 201 is an arc-shaped horizontal plate, which can increase the collection of impurities and prevent the problem of impurities falling and clogging the internal mesh holes of the rotating mesh plate 201 in the later stage. The rotating mesh plate 201 will drive the movable block 207 to move to the outside of the supporting block 202 when it moves downward. If the weight of the impurities accumulated above the rotating mesh plate 201 reaches a certain level, the arc surface of the movable block 207 will push the supporting block 202 to move to the inside of the supporting box 213 until the movable block 207 leaves the outside of the supporting block 202. The rotating mesh plate 201 will move downward due to the gravity it bears. When the rotating mesh plate 201 moves downward, the impurities will The impurities will fall into the interior of the impurity dredging pipe 214 until the rotating mesh plate 201 moves to the position of the stop block 208. At this time, the other set of rotating mesh plates 201 will move to the lower position of the central tube 105, and the impurities will move with the impurity dredging pipe 214 to the interior of the mobile box 301 inside the dust collecting box 3. The rotating mesh plate 201 moves to the outside of the stop block 208 to intercept the opening position of the impurity dredging pipe 214 to prevent the impurities from moving with the water flow to the interior of the connecting pipe 215 during the backflow process. Subsequently, when the other set of rotating mesh plates 201 moves under the force of gravity, the rotating mesh plates 201 at the position of the stop block 208 will squeeze the stop block 208, so that the stop block 208 enters the interior of the auxiliary box 211. At this time, the other set of rotating mesh plates 201 will bring Move the previous set of rotating mesh plates 201 back to the position of the stop block 208, so as to filter the rainwater-impurity mixture in turn, and the impurities entering the movable box 301 will increase its internal impurity ratio. At this time, the excess rainwater will flow back out of the impurity dredging pipe 214, so as to increase the separation effect of rainwater and impurities. By arranging the rotating mesh plates 201 inside the filtering horizontal barrel 2, the rotating mesh plates 201 are driven to move by the gravity of the impurities, so that the impurities fall directly into the movable box 301, increasing the impurity accumulation ratio inside the movable box 301 and increasing the time for the impurities to stay and accumulate, so that more rainwater can enter the connecting pipe 215, thereby increasing the filtration efficiency of rainwater and facilitating the unified collection of impurities in the later stage.

[0044] Impurities enter the moving box 301 from the impurity dredging pipe 214. When the impurities in the moving box 301 accumulate to a certain extent, the proportion of impurities is greater than the proportion of rainwater. At this time, the weight borne by the moving box 301 will increase with the proportion of impurities. At this time, the moving box 301 will move downward, and the moving box 301 will drive the support frame 305 to move downward. At this time, the support frame 305 will drive the moving plate 308 to move downward. At this time, the moving plate 308 will slide inside the connecting box 304, and the moving plate 308 will squeeze the gravity spring 302 during the movement. At this time, the baffle 309 will slide inside the waterproof outer frame 311, which is made of rubber. The baffle 309 is set at the upper and lower positions of the abutment 208, and the baffle 309 blocks the moving slot position of the movable plate 308 to achieve a waterproof effect. The waterproof outer frame 311 protects the moving position of the baffle 309, thereby reducing water overflow. When the movable box 301 drives the opening and closing plate 303 to move to the opening position of the side plate of the dust box 3, the opening and closing plate 303 will lose the resisting force inside the dust box 3, and the bottom of the movable box 301 is arc-shaped. At this time, the accumulated impurities will move to the opening and closing plate 30 3, a certain impact force is generated at the position of the opening and closing plate 303. When the opening and closing plate 303 leaves the inner position of the dust box 3, the impact force generated by the impurities will push the opening and closing plate 303 open, and then the impurities will be discharged from the inside of the filter box 1 along the position of the discharge pipe 312. At this time, the impurities in the movable box 301 will be discharged, and the movable box 301 will lose its gravity, which will cause the movable plate 308 to lose the squeezing force on the gravity spring 302, so that the gravity spring 302 generates tension to drive the movable box 301 to move upward. At this time, the opening and closing plate 303 will be closed under the squeezing of the inner side of the dust box 3, so that the position of the opening and closing plate 303 is moved to the same position as that of the movable box 301. The waterproof strip 306 is abutted against the position where the waterproof strip 306 is made of soft rubber material. It can increase the waterproof effect when it is abutted against the opening and closing plate 303, and reduce the discharge of water from the inside of the moving box 301. By arranging gravity springs 302 on both sides of the moving box 301, the impurities inside the moving box 301 accumulate to a certain proportion, which will increase the weight of the moving box 301, so that the moving box 301 moves downward and squeezes the gravity spring 302. After the moving box 301 moves to a certain position, it will impact the opening and closing plate 303, so that the opening and closing plate 303 opens and the impurities are discharged, and the discharge of impurities is automatically completed.

[0045] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A filtering device for road drainage in a municipal engineering project, comprising a filtering box (1), characterized in that: The filter box (1) is provided with a filter unit and a dust collection unit inside; The filtering unit comprises a filtering horizontal barrel (2), the filtering horizontal barrel (2) being arranged inside a filtering box (1), a rotating screen plate (201) being rotatably arranged inside the filtering horizontal barrel (2), a supporting block (202) being movably arranged inside the filtering horizontal barrel (2), the rotating screen plate (201) being arranged outside the supporting block (202), the rotating screen plate (201) squeezing the supporting block (202) by the weight of impurities accumulated above, and when impurities above the rotating screen plate (201) accumulate to a certain extent, the impurities will be squeezed out of the outside of the supporting block (202) and rotate, a connecting pipe (215) being inserted into the inner bottom of the filtering horizontal barrel (2), an auxiliary box (211) being fixedly connected to the side of the connecting pipe (215), the auxiliary box (211) being fixedly connected to the bottom of the filtering horizontal barrel (2), a stop block (208) being slidably arranged inside the auxiliary box (211), and an impurity dredging pipe (214) being inserted into the interior of the filtering horizontal barrel (2); A support plate (103) is provided inside the filter box (1), a filter vertical barrel (102) is provided above the support plate (103), a water inlet pipe (101) is fixedly connected to the top of the filter vertical barrel (102), the water inlet pipe (101) is plugged into the filter box (1), a central tube (105) is provided inside the filter vertical barrel (102), an inclined mesh plate (106) is fixedly connected to the top of the central tube (105), the inclined mesh plate (106) is fixedly connected to the inner side of the filter vertical barrel (102), a water outlet pipe (104) is plugged into the side of the filter vertical barrel (102), the central tube (105) is plugged into the inside of the support plate (103), and the central tube (105) is plugged into the inside of the filter horizontal barrel (2); A dust collecting unit, comprising a dust collecting box (3), the dust collecting box (3) being arranged below a filtering horizontal barrel (2), a movable box (301) being movably arranged inside the dust collecting box (3), gravity springs (302) being arranged on both sides of the movable box (301), an opening and closing plate (303) being rotatably arranged inside the movable box (301), and the opening and closing plate (303) being used for opening and closing the side position of the dust collecting box (3); The rotating mesh plate (201) moves to the position of the stop block (208), and at this time, the other set of rotating mesh plates (201) will move to the position below the central tube (105), and the impurities will move with the impurity dredging tube (214) to the inside of the moving box (301) inside the dust collecting box (3). The rotating mesh plate (201) moves to the outside of the stop block (208) to intercept the opening position of the impurity dredging tube (214) to prevent the impurities from moving with the water flow to the inside of the connecting tube (215) during the backflow process. Then, when the other set of rotating mesh plates (201) is moved under the force of gravity, The rotating mesh plate (201) at the position of the stop block (208) will squeeze the stop block (208), so that the stop block (208) enters the interior of the auxiliary box (211). At this time, another set of rotating mesh plates (201) will drive the previous set of rotating mesh plates (201) back to the position of the stop block (208), thereby filtering the rainwater and impurity mixture in turn. The impurities entering the interior of the mobile box (301) will increase its internal impurity ratio. At this time, the excess rainwater will flow back out of the interior of the impurity dredging pipe (214), thereby increasing the separation effect of rainwater and impurities.

2. A filtering device for drainage of municipal engineering roads according to claim 1, characterized in that: The interior of the filtering horizontal barrel (2) is fixedly connected to a supporting round rod (206), the interior of the supporting round rod (206) is rotatably connected to a rotating round tube (204), the exterior of the rotating round tube (204) is fixedly connected to a filtering net barrel (205), the rotating net plate (201) is fixedly connected to the exterior of the filtering net barrel (205), and a movable block (207) is fixedly connected to the side of the rotating net plate (201).

3. A filtering device for drainage of municipal engineering roads according to claim 2, characterized in that: A support box (213) is fixedly connected to the side of the filtering horizontal barrel (2); the support block (202) is slidably connected to the inside of the support box (213); the support block (202) is movably plugged into the inside of the filtering horizontal barrel (2); a support telescopic rod (212) is fixedly connected to the inside of the support box (213); a support spring (203) is movably sleeved on the outside of the support telescopic rod (212); the support telescopic rod (212) is fixedly connected to the side of the support block (202); the support spring (203) is fixedly connected to the side of the support block (202); the other end of the support spring (203) is fixedly connected to the inside of the supporting box (213); and the movable block (207) is in contact with the outside of the support block (202).

4. A filtering device for drainage of municipal engineering roads according to claim 2, characterized in that: The lower surface of the stop block (208) is fixedly connected to an auxiliary telescopic rod (209), the bottom end of the auxiliary telescopic rod (209) is fixedly connected to the inside of the auxiliary box (211), the outside of the auxiliary telescopic rod (209) is movably sleeved with an auxiliary spring (210), the bottom end of the auxiliary spring (210) is fixedly connected to the inside of the auxiliary box (211), the top end of the auxiliary spring (210) is fixedly connected to the lower surface of the stop block (208), and the movable block (207) is in contact with the outside of the stop block (208).

5. A filtering device for drainage of municipal engineering roads according to claim 1, characterized in that: The impurity dredging pipe (214) is arranged inside the dust box (3); a support frame (305) is fixedly connected to the bottom of the movable box (301); the support frame (305) is movably arranged inside the dust box (3); movable plates (308) are fixedly connected to both sides of the support frame (305); and the movable plates (308) are slidably connected to the inside of the dust box (3).

6. A filtering device for drainage of municipal engineering roads according to claim 5, characterized in that: The two sides of the dust collecting box (3) are fixedly connected to a connecting box (304), the connecting box (304) is fixedly connected to the inner side of the filter box (1), the movable plate (308) is slidably connected to the inside of the connecting box (304), the inside of the connecting box (304) is fixedly connected to a limiting rod (310), the movable plate (308) is movably sleeved on the outside of the limiting rod (310), the gravity spring (302) is fixedly connected to the lower surface of the movable plate (308), the gravity spring (302) is movably sleeved on the outside of the limiting rod (310), and the bottom end of the gravity spring (302) is fixedly connected to the inner bottom of the connecting box (304).

7. A filtering device for drainage of municipal engineering roads according to claim 6, characterized in that: The two sides of the dust collecting box (3) are fixedly connected to a waterproof outer frame (311); the outside of the movable plate (308) is fixedly connected to a baffle (309); the baffle (309) is slidably connected to the inside of the waterproof outer frame (311); the movable plate (308) is movably arranged outside the waterproof outer frame (311); and the baffle (309) is movably plugged into the inside of the connection box (304).

8. A filtering device for drainage of municipal engineering roads according to claim 1, characterized in that: The interior of the movable box (301) is fixedly connected to a connecting rod (307), the opening and closing plate (303) is movably sleeved on the outside of the connecting rod (307), the inside of the movable box (301) is fixedly connected to a waterproof strip (306), the outer surface of the opening and closing plate (303) abuts against the outside of the waterproof strip (306), and the opening and closing plate (303) is movably arranged on the inside of the dust collecting box (3).

9. A filtering device for drainage of municipal engineering roads according to claim 2, characterized in that: A discharge pipe (312) is arranged on the side of the dust collecting box (3), the opening and closing plate (303) is movably arranged inside the discharge pipe (312), the movable box (301) is arranged above the discharge pipe (312), the water outlet pipe (104) is arranged on the side of the connecting pipe (215), and the water outlet pipe (104) is plugged into the interior of the filter box (1).

Images