A gully grid and sewage interception device

Abstract

The application discloses a gully's grid staggered tooth plate and a sewage intercepting device, wherein the gully's grid staggered tooth plate is arranged at the bottom of the gully, and the gully's grid staggered tooth plate comprises a grid mounting seat and a plurality of tooth pieces which are arranged on the grid mounting seat in an inclined mode. The gully's grid staggered tooth plate can improve the overall sewage removal efficiency of the gully, and can also reduce the possibility that the core filtering component of the sewage intercepting device assembled with the gully's grid staggered tooth plate is attached by pollutants, and prolong the service life.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of municipal drainage equipment, in particular to a grid staggered tooth plate of a rainwater inlet and a sewage interception device. BACKGROUND

[0002] The traditional road drainage method does not well solve the problem of runoff pollution in the process of road surface rainwater convergence, so it is necessary to increase physical or ecological sewage interception measures on the basis of the traditional drainage system to control road path runoff pollution and reduce the harm to the water environment.

[0003] The rainwater inlet is an important auxiliary structure for collecting rainwater in the rainwater pipe system, which is composed of a water inlet grate, a well body and a branch pipe. The rainwater inlet is the main way for collecting and discharging road rainwater, so the reasonable design of the rainwater inlet is the key to the exclusion of urban road surface runoff rainwater pollution.

[0004] To solve the above problems, the applicant has proposed a patent application with publication number CN109972722A, which discloses a new type of sewage interception environment-friendly rainwater inlet technical scheme that can achieve primary and secondary filtration of rainwater. However, during use, the applicant found that the filter core (filter brick) of the technical scheme is still prone to being attached by pollutants and cannot effectively filter, and needs to be cleaned in time. SUMMARY

[0005] Therefore, in order to solve the above problems, the present application provides a grid staggered tooth plate of a rainwater inlet, which is arranged at the bottom of the rainwater inlet and can assist in the sedimentation of pollutants and protect the filter bricks and other components in the sewage interception device. Furthermore, the present application further provides a sewage interception device for a rainwater inlet, which has a grid staggered tooth plate, has good sewage interception effect, has long service life, and can preliminarily filter rainwater to reduce pollutants therein.

[0006] Therefore, according to a first aspect, the present application provides a grid staggered tooth plate of a rainwater inlet, which is arranged at the bottom of the rainwater inlet, and the grid staggered tooth plate of the rainwater inlet comprises:

[0007] a grid mounting seat;

[0008] a plurality of tooth pieces obliquely arranged on the grid mounting seat.

[0009] In one possible implementation, the grid mounting seat comprises:

[0010] a mounting bottom plate; the plurality of tooth pieces are obliquely arranged on the mounting bottom plate;

[0011] two mounting handles respectively arranged at two ends of the mounting bottom plate; and the other two side edges of the mounting bottom plate are water passing side edges, and the plurality of tooth pieces are arranged at intervals in the extension direction of the water passing side edges.

[0012] In a possible implementation, the grid mounting seat further comprises:

[0013] two mounting side plates, respectively arranged at the two water-passing sides of the mounting bottom plate; the two mounting side plates are provided with corresponding first clamping grooves, and the two ends of the toothed sheet are clamped in the two corresponding first clamping grooves.

[0014] In a possible implementation, the mounting side plate is provided with a plurality of first water-passing through holes.

[0015] According to a second aspect, the present application further provides a sewage interception device of a rainwater inlet, comprising:

[0016] a first sewage interception body having a first sewage interception cavity therein and having at least one filtering side wall provided with a plurality of second water-passing through holes communicating with the first sewage interception cavity;

[0017] a filter brick arranged at the filtering side wall;

[0018] the grid toothed sheet of the rainwater inlet according to any one of the embodiments of the first aspect described above is arranged at the bottom of the first sewage interception body.

[0019] In a possible implementation, the filtering side wall comprises a first section close to the bottom of the first sewage interception body and a second section away from the first sewage interception body, the filter brick and the second water-passing through hole are arranged at the first section, and the second section is provided with a first overflow hole communicating with the first sewage interception cavity.

[0020] In a possible implementation, the sewage interception device of the rainwater inlet further comprises:

[0021] an odor-resistant shutter arranged outside the filtering side wall of the second section; the odor-resistant shutter has a first state of covering the first overflow hole and a second state of being opened by rainwater overflowing at the first overflow hole.

[0022] In a possible implementation, the filter brick comprises a brick body and a frame body covering the side of the brick body, and the frame body is further provided with a pull handle.

[0023] In a possible implementation, the sewage interception device of the rainwater inlet further comprises:

[0024] a second sewage interception body arranged at the opening of the first sewage interception body; the second sewage interception body has a second sewage interception cavity therein, and the bottom surface and the side wall of the second sewage interception body are both provided with a sewage interception hole communicating with the second sewage interception cavity, and the rainwater is filtered after passing through the second sewage interception cavity and the first sewage interception cavity in sequence.

[0025] In a possible implementation, at least one side wall of the second sewage interception body is provided with a second overflow hole communicating with the second sewage interception cavity; the second overflow hole is arranged at one end of the side wall of the second sewage interception body close to the opening of the second sewage interception cavity.

[0026] The technical scheme provided by the present application has the following advantages:

[0027] 1、The rainwater inlet's grille staggered tooth plate provided by the present application, by setting the tooth plate at the bottom of the rainwater inlet and having a plurality of obliquely arranged tooth pieces, can make the particulate pollutants in the rainwater first contact the inclined surfaces on the tooth pieces to realize sedimentation, thereby improving the overall decontamination efficiency at the rainwater inlet; meanwhile, the obliquely arranged tooth pieces can also block the overall flow of the rainwater at the bottom of the rainwater inlet to some extent, reduce the possibility of disturbing the pollutants that have settled on the grille mounting seat, and block the pollutants from floating up in the case of disturbance, so that the possibility of the core filtering component (such as a filter brick) of the sewage interception device equipped with the grille staggered tooth plate being attached by the pollutants suspended in the rainwater at the bottom of the rainwater inlet is reduced, and the service life is increased; and further, the sewage discharge capacity of the rainwater inlet is improved, and the structure is simple and the effect is good.

[0028] 2、The rainwater inlet's grille staggered tooth plate provided by the present application, by setting the mounting seat having mounting side plates on both sides of the mounting bottom plate and setting the two mounting side plates having corresponding first clamping grooves, can realize detachable connection between the tooth pieces and the mounting seat by clamping the two ends of a tooth piece in the corresponding first clamping grooves of the two mounting side plates, and further can realize flexible adjustment of the number and spacing of the tooth pieces in the grille staggered tooth plate and deep cleaning of the mounting seat (all the connections between the tooth pieces and the mounting seat are released), thereby improving the practicability of the rainwater inlet's grille staggered tooth plate.

[0029] 3、The rainwater inlet's sewage interception device provided by the present application, by setting the filter main body of the first sewage interception body as a filter side wall and setting a filter brick at the filter side wall, can make the first sewage interception body preliminarily filter oil, salt, nitrogen and phosphorus in the rainwater on the basis of forming a deposition space (formed by the bottom and the side wall of the first sewage interception body and the filter brick), thereby reducing the harm of the rainwater to the water environment; meanwhile, by setting the grille staggered tooth plate at the bottom of the first sewage interception body, the function of quickly settling the particulate pollutants in the rainwater can be realized, the overall decontamination efficiency of the rainwater inlet's sewage interception device is improved, and the practicability of the rainwater inlet's sewage interception device is improved.

[0030] 4、The rainwater inlet's sewage interception device provided by the present application, by setting the odor-resistant louvers at the first overflow hole, can ensure the drainage capacity of the first sewage interception body so that it will not affect the municipal drainage when the rainfall is large, and can also block the odor of the pollutants in the first sewage interception body in the normal state (when the rainfall is small, the rainwater is discharged after passing through the filter brick and does not need to overflow through the overflow hole), thereby further improving the practicability of the rainwater inlet's sewage interception device.

[0031] 5. The rainwater inlet sewage interception device provided by the application has the advantages that the second sewage interception body capable of filtering out larger particles in rainwater is arranged at the opening of the first sewage interception body, so that the larger particles can be cleaned, and the influence of the larger particles on the filter bricks is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0033] Figure 1 A structural schematic view of a rainwater inlet grid staggered tooth plate provided by an embodiment of the application;

[0034] Figure 2 A sectional view of the rainwater inlet grid staggered tooth plate in Figure 1

[0035] Figure 3 A structural schematic view of a rainwater inlet sewage interception device provided by an embodiment of the application;

[0036] Figure 4 A sectional view of the rainwater inlet sewage interception device in Figure 3

[0037] Figure 5 A structural schematic view of another rainwater inlet sewage interception device provided by an embodiment of the application;

[0038] Figure 6 A sectional view of the rainwater inlet sewage interception device in Figure 5

[0039] Figure 7 A structural schematic view of a first sewage interception body provided by an embodiment of the application;

[0040] Figure 8 A sectional view of the first sewage interception body in Figure 3

[0041] Explanation of reference signs:

[0042] 1. Rainwater inlet grid staggered tooth plate

[0043] 11. Grid mounting seat; 111. Mounting bottom plate; 112. Mounting handle; 113. Mounting side plate; 113a. First water passing through hole

[0044] 12. Tooth piece

[0045] ​​​​2 - first intercepting body;

[0046] 211 - second water passing hole; 212 - first overflow hole;

[0047] 22 - clamping plate;

[0048] 3 - filter brick; 31 - brick body; 32 - frame body; 33 - pull handle;

[0049] 4 - deodorizing shutter;

[0050] 5 - second intercepting body; 51 - intercepting hole; 52 - second overflow hole; 53 - second hanging step;

[0051] 6 - outer shell. DETAILED DESCRIPTION

[0052] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0053] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0054] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0056] Example 1

[0057] Please refer to Figure 1 and Figure 2This invention discloses a grid-like staggered plate 1 for a storm drain inlet. This device is disposed at the bottom of the storm drain inlet to assist in the settling of pollutants in the road runoff entering the storm drain, while preventing the already settled pollutants from being disturbed and floated up by subsequent rainwater inflow. Figure 1 and Figure 2 As shown, the grid toothed plate 1 of the rainwater inlet includes a grid mounting base 11 and a plurality of toothed pieces 12, and the plurality of toothed pieces 12 are inclinedly arranged on the grid mounting base 11.

[0058] The included angle between the multiple toothed pieces 12 and the grid mounting base 11 can be between 65° and 80°, and the multiple toothed pieces 12 can be arranged in parallel.

[0059] To facilitate the installation of the grid toothed plate 1 of the rainwater inlet inside or removal from the rainwater inlet for cleaning, such as Figure 1 and Figure 2 As shown, the grille mounting base 11 may include a mounting base plate 111 and two mounting handles 112. Multiple toothed pieces 12 are inclinedly disposed on the mounting base plate 111, and the two mounting handles 112 are respectively disposed at both ends of the mounting base plate 111. The other two sides of the mounting base plate 111 are water-passing sides, and the multiple toothed pieces 12 are spaced apart in the extending direction of the water-passing sides.

[0060] The toothed plate 12 can be directly fixed to the mounting base plate 111. Specifically, it can be integrally formed with the mounting base plate 111.

[0061] To facilitate adjustment of the number of toothed plates 12 and the spacing between them according to rainfall and pollutant conditions in specific application scenarios, and to facilitate cleaning of pollutants deposited on the mounting base 111, the toothed plates 12 can be detachably connected to the grille mounting base 11. Figure 1 and Figure 2 As shown, the grid mounting base 11 can also include two mounting side plates 113. The two mounting side plates 113 are respectively located on the two water passage sides of the mounting base plate 111, and each of the two mounting side plates 113 is provided with a corresponding first snap-fit ​​groove. The two ends of the toothed piece 12 are respectively snapped into the corresponding first snap-fit ​​grooves on the two mounting side plates 113.

[0062] Meanwhile, in order to reduce the impact of installing side plate 113 on the water flow side, such as Figure 2 As shown, both mounting side plates 113 can be configured to have multiple first water passage holes 113a.

[0063] In summary, the grid-toothed plate 1 of the rainwater inlet in the embodiment can make the particulate pollutants in the rainwater first contact the inclined surfaces on the teeth 12, so as to realize sedimentation and improve the overall pollution removal efficiency at the rainwater inlet. Meanwhile, the inclined teeth 12 can also block the overall flow of the rainwater at the bottom of the rainwater inlet to some extent, reduce the possibility of disturbing the pollutants that have settled on the grid mounting seat 11, and block the pollutants from floating up in the case of being disturbed, so that the possibility of the core filtering component (such as the filter brick 3 in the following embodiment 2) of the pollution interception device equipped with the grid-toothed plate 1 being attached by the pollutants suspended in the rainwater at the bottom of the rainwater inlet is reduced, and the service life is increased. Furthermore, the pollution removal capacity of the rainwater inlet is improved, and the structure is simple and the effect is good.

[0064] Embodiment 2

[0065] Please refer to Figure 3 and Figure 4 , a pollution interception device for a rainwater inlet disclosed in the embodiments of the present application, which comprises a first pollution interception body 2, a filter brick 3 and the grid-toothed plate 1 of the rainwater inlet in the above embodiment 1. The first pollution interception body 2 has a first pollution interception cavity and at least one filtering side wall, and a plurality of second water passing through holes 211 are arranged on the filtering side wall and communicated with the first pollution interception cavity. The filter brick 3 is arranged at the filtering side wall. The grid-toothed plate 1 of the rainwater inlet is arranged at the bottom of the first pollution interception body 2.

[0066] The shape of the first pollution interception body 2 can be set according to the shape of the rainwater inlet in the actual application scene and the like. For example, Figure 3 and Figure 4 , in a specific implementation manner, it can be formed by combining one bottom plate and four side plates, thereby forming a first pollution interception body 2 having one bottom and four sides, and the caliber of the first pollution interception body 2 can be gradually reduced from the opening thereof towards the bottom thereof. In addition, when applied to a newly added rainwater inlet, the pollution interception device for the rainwater inlet in the embodiment can further comprise an outer shell 6, as shown in Figure 5 and Figure 6 , the outer shell 6 is sleeved outside the first pollution interception body 2. When the rainwater inlet is constructed, the pollution interception device for the rainwater inlet with the outer shell 6 can be buried at the corresponding position point.

[0067] The first pollution interception cavity is a cavity formed in the first pollution interception body 2, and those skilled in the art can understand that, based on the requirement of realizing the function of filtering and removing pollutants in the rainwater by the first pollution interception body 2, the first pollution interception cavity is an open cavity at one end, and the opening is the water inlet of the first pollution interception body 2. The water outlet of the first pollution interception body 2 is the water passing through hole 211 and the first overflow hole 212 described below.

[0068] When the filtering side wall of the first intercepting body 2 is one to three, at this time, the installation handle 112 in the grid zigzag plate 1 of the rainwater inlet corresponds to the side wall where the flow guide groove is located, and the installation side plate 113 corresponds to the filtering side wall.

[0069] The size, shape and number of the second water passing through hole 211 on the filtering side wall can also be set according to the water passing demand in the actual application scene. For example, Figure 3 and Figure 4 As shown, the aperture of the second water passing through hole 211 away from the bottom of the first intercepting body 2 can be set to be larger than the aperture of the second water passing through hole 211 close to the bottom of the first intercepting body 2.

[0070] In order to realize the relative fixation between the filter brick 3 and the filtering side wall for rainwater filtration, and facilitate the replacement of the filter brick 3 after reaching the service life, as shown, Figure 4 a clamping plate 22 can be arranged at the bottom and / or the side wall of the first intercepting body 2, and a second clamping groove is formed between the clamping plate 22 and the filtering side wall, and the filter brick 3 is clamped in the second clamping groove. At this time, when the first water passing through hole 113a is arranged on the installation side plate 113 in the grid zigzag plate 1 of the rainwater inlet, a hole corresponding to the first water passing through hole 113a is also arranged on the clamping plate 22.

[0071] In addition, in order to further facilitate the replacement of the filter brick 3 after reaching the service life, as shown, Figure 4 the filter brick 3 can also include a brick body 31 and a frame body 32 wrapped on the side of the brick body 31, and a pull handle 33 can be arranged on the frame body 32. It should be understood by those skilled in the art that both of the larger end faces on the brick body 31 are filtering faces, and the frame body 32 wraps other side faces other than the filtering faces.

[0072] In summary, the rainwater inlet intercepting device provided by the embodiment of the present application can make the first intercepting body 2 form a deposition space (formed by the bottom and the side wall of the first intercepting body 2 / the filter brick 3) on the basis of arranging the filtering main body of the first intercepting body 2 as a filtering side wall and arranging the filter brick 3 at the filtering side wall, so as to preliminarily filter oil, salt, nitrogen and phosphorus and the like in the rainwater, thereby reducing the harm of rainwater to the water environment. Meanwhile, by arranging the grid zigzag plate 1 at the bottom of the first intercepting body 2, the function of quickly settling the particulate pollutants in the rainwater can be realized, the overall pollution removal efficiency of the rainwater inlet intercepting device is improved, and the practicability of the rainwater inlet intercepting device is improved.

[0073] In one specific embodiment of the present embodiment, as shown, Figure 3 and Figure 4As shown, on the basis of the above structure, the filtering side wall can further include a first section close to the bottom of the first sewage intercepting body 2 and a second section away from the first sewage intercepting body 2, the filter bricks 3 and the second water passing hole 211 are arranged at the first section, and the second section is provided with a first overflow hole 212 in communication with the first sewage intercepting cavity.

[0074] In one specific embodiment of the present embodiment, as shown in Figure 7 and Figure 8 As shown, on the basis of the above structure, the sewage intercepting device of the rainwater inlet can further include an odor blocking louver 4 arranged outside the filtering side wall of the second section and having a first state of covering the first overflow hole 212 and a second state of being opened by rainwater overflowing at the first overflow hole 212. Thus, the drainage capacity of the first sewage intercepting body 2 can be ensured, so that the odor of pollutants in the first sewage intercepting body 2 under normal conditions (small rainfall, rainwater is discharged after being filtered by the filter bricks 3 without overflowing through the overflow hole) can be blocked, and the practicability of the sewage intercepting device of the rainwater inlet is further improved.

[0075] As can be understood by those skilled in the art, the first overflow hole 212 is arranged to ensure the drainage capacity of the first sewage intercepting body 2, so the first overflow hole 212 is larger than the second water passing hole 211.

[0076] In one specific embodiment of the present embodiment, as shown in Figures 4-6 As shown, on the basis of the above structure, the sewage intercepting device of the rainwater inlet can further include a second sewage intercepting body 5 arranged at the opening of the first sewage intercepting body 2, the second sewage intercepting body 5 has a second sewage intercepting cavity therein, and the bottom surface and the side wall of the second sewage intercepting body 5 are both provided with a sewage intercepting hole 51 in communication with the second sewage intercepting cavity, and rainwater is filtered after passing through the second sewage intercepting cavity and the first sewage intercepting cavity.

[0077] The shape of the second sewage intercepting body 5 can be specifically arranged according to the shape of the first sewage intercepting body 2 and other conditions in actual application.

[0078] Similar to the first sewage intercepting cavity, the second sewage intercepting cavity is a cavity formed in the second sewage intercepting body 5, and the second sewage intercepting cavity is also an open-ended cavity, and the opening is the water inlet of the second sewage intercepting body 5; the water outlet of the second sewage intercepting body 5 is the above-mentioned sewage intercepting hole 51 and the below-mentioned second overflow hole 52.

[0079] In addition, Figure 4 Although not specifically shown in the above, as can be understood by those skilled in the art, in order to realize the connection between the first sewage intercepting body 2 and the second sewage intercepting body 5, the inside of the first sewage intercepting body 2 should be provided with a first hanging step corresponding to the second hanging step 53 outside the second sewage intercepting body 5.

[0080] The size, shape and number of the sewage intercepting holes 51 can also be set according to the water passing demand in the actual application scene. As shown in the figure, in order to ensure the water passing amount of the second sewage intercepting body 5, at least one side wall of the second sewage intercepting body 5 can be provided with a second overflow hole 52 communicating with the second sewage intercepting cavity, and the second overflow hole 52 is arranged at one end of the side wall of the second sewage intercepting body 5 close to the opening of the second sewage intercepting cavity.

[0081] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A gully grate of a storm drain, characterized in that, A rainwater inlet is provided with a grid-toothed plate at the bottom of the rainwater inlet, the grid-toothed plate comprising: a grid mounting seat; a plurality of toothed pieces obliquely arranged on the grid mounting seat; the grid mounting seat comprising: a mounting bottom plate, the plurality of toothed pieces being obliquely arranged on the mounting bottom plate, and the included angle between the plurality of toothed pieces and the mounting bottom plate being between 65° and 80°.

2. The gully grating of claim 1, wherein, the grid mounting seat further comprising: two mounting handles respectively arranged at two ends of the mounting bottom plate, and the other two side edges of the mounting bottom plate being water passing side edges, and the plurality of toothed pieces being arranged at intervals in the extension direction of the water passing side edges.

3. The gully grating of claim 2, wherein, the grid mounting seat further comprising: two mounting side plates respectively arranged at the two water passing side edges of the mounting bottom plate, and each of the two mounting side plates being provided with a first clamping groove, and the two ends of the toothed pieces being clamped in the corresponding first clamping grooves of the two mounting side plates.

4. The gully grid of claim 3, wherein, a plurality of first water passing through holes are arranged on the mounting side plate.

5. A device for intercepting sewage at a gully, characterised in that comprising: a first sewage intercepting body having a first sewage intercepting cavity therein and having at least one filtering side wall, the filtering side wall being provided with a plurality of second water passing through holes in communication with the first sewage intercepting cavity; a filter brick arranged at the filtering side wall; the grid-toothed plate of the rainwater inlet according to any one of claims 1-4, arranged at the bottom of the first sewage intercepting body.

6. The storm drain apparatus of claim 5, wherein, the filtering side wall comprising a first section close to the bottom of the first sewage intercepting body and a second section away from the first sewage intercepting body, the filter brick and the first water passing through holes being arranged at the first section, and the second section being provided with a first overflow hole in communication with the first sewage intercepting cavity.

7. A storm drain according to claim 6 wherein, further comprising: odor-resistant louvers arranged outside the filtering side wall of the second section; the odor-resistant louvers having a first state of covering the first overflow hole and a second state of being opened by rainwater overflowing at the first overflow hole.

8. The device according to claim 5, wherein the filter brick comprising a brick body and a frame body wrapped around the side edges of the brick body, and a pull handle being further arranged on the frame body.

9. A storm drain according to any one of claims 5 to 8, wherein, further comprising: a second sewage intercepting body arranged at the opening of the first sewage intercepting body, the second sewage intercepting body having a second sewage intercepting cavity therein, and the bottom surface and the side wall of the second sewage intercepting body being provided with sewage intercepting holes in communication with the second sewage intercepting cavity, rainwater being filtered after passing through the second sewage intercepting cavity and the first sewage intercepting cavity in sequence.

10. The storm drain apparatus of claim 9, wherein, at least one side wall of the second sewage intercepting body being provided with a second overflow hole in communication with the second sewage intercepting cavity, the second overflow hole being arranged at one end of the side wall of the second sewage intercepting body close to the opening of the second sewage intercepting cavity.

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