A municipal sewage pipe network drainage purification treatment device

Abstract

This invention discloses a municipal sewage pipe network drainage purification and treatment device, comprising a supporting chamber and a sealing plate movably connected to the top of the supporting chamber. The supporting chamber is buried underground and further includes: a primary filtration mechanism fixedly connected to one inner wall of the supporting chamber; a flow meter fixedly installed on one outer wall of the primary filtration mechanism; a secondary filtration mechanism located on the supporting chamber and the sealing plate; and an algae inhibition mechanism connected to the sealing plate. The primary filtration mechanism includes: a supporting frame, which penetrates and is fixedly connected to one inner wall of the supporting chamber, and the flow meter is fixedly installed on one outer wall of the supporting frame; and multiple railings, which are equidistantly fixedly connected to the inner walls of opposite sides of the supporting frame. The municipal sewage pipe network drainage purification and treatment device disclosed in this invention can effectively avoid blockage caused by garbage accumulation, and the structure does not need to extend outwards, nor will it obstruct road traffic.

Description

Technical Field

[0001] This invention relates to the field of municipal drainage purification technology, and in particular to a municipal sewage pipe network drainage purification and treatment device. Background Technology

[0002] Rainwater drainage is a crucial task in urban municipal drainage systems, primarily achieved through rainwater purification and discharge systems. Rainwater discharge systems are responsible for transporting collected rainwater to urban or natural water bodies, such as rivers, lakes, or oceans, to prevent urban flooding and waterlogging.

[0003] Application No. 202411697426.7 discloses a municipal sewage pipe network drainage purification and treatment device, which is used to control the movement of the intercepting grid frame to the outside or inside of the drainage pipe according to the amount of rainfall, so as to prevent the drainage outlet of urban roads from being blocked during rainstorms, improve the purification, interception and drainage efficiency of garbage at the drainage outlet, and reduce the adverse effects on urban drainage and traffic.

[0004] However, in order to achieve the anti-blocking effect, the intercepting grid frame needs to be moved outward. Furthermore, people may not pay attention to the road conditions while walking, especially in heavy rain, which may cause collisions and falls. Summary of the Invention

[0005] This invention discloses a municipal sewage pipe network drainage purification and treatment device, which aims to solve the technical problem that in order to achieve the anti-blocking effect, the intercepting grid frame needs to be moved outward, and people may not pay attention to the road conditions when walking, especially in heavy rain, which may cause collisions and falls.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A municipal sewage pipe network drainage purification and treatment device includes a supporting chamber and a sealing plate movably connected to the top of the supporting chamber. The supporting chamber is buried underground. The device also includes: a primary filtration mechanism fixedly connected to the inner wall of one side of the supporting chamber; a flow meter fixedly installed on the outer wall of one side of the primary filtration mechanism; a secondary filtration mechanism located on the supporting chamber and the sealing plate; and an algae inhibition mechanism connected to the sealing plate. The primary filtration mechanism includes: a support frame, which is fixedly connected to one inner wall of the support chamber, and a flow meter is fixedly installed on one outer wall of the support frame; multiple railings (first type), which are fixedly connected at equal intervals to the inner walls of opposite sides of the support frame; multiple waist-shaped slots, which are equidistantly arranged through the inner walls of opposite sides of the support frame; railings (second type), which are movably inserted into the multiple waist-shaped slots, and the multiple railings (second type) are staggered with the multiple railings (first type), and multiple needles (first type) are fixedly connected to the outer wall of each railing (second type) and railing (first type); two side support plates (first type), which are movably fitted to the inner walls of both sides of the support frame and fixedly connected to both ends of the multiple railings (second type); a side support plate (second type), which is fixedly connected to one outer wall of one of the side support plates (first type); and an electric telescopic rod, which is fixedly connected to the inner wall of the bottom end of the support frame, and its output end is fixedly connected to the outer wall of the bottom end of the side support plate (second type). The secondary filtration mechanism includes a grid plate, which is obliquely arranged in the support chamber; The inner wall of the support chamber is fixedly connected to a limiting frame, and the bottom end of the sealing plate is movably attached to the top end of the limiting frame. The primary filtration mechanism further includes: multiple sliders, which are simultaneously fixedly connected to the outer wall of one side of the other support plate; multiple sliding rods, which are fixedly connected to the inner walls of the top and bottom ends of the support frame, and multiple sliders are simultaneously movably sleeved on the sliding rods; and multiple water leakage holes, which are provided through the inner wall of one side of the support frame.

[0007] Equipped with a primary and secondary filtration system, when the flow meter detects an increase in sewage flow, the electric telescopic rod moves the second railing horizontally, thereby expanding the cross-section of the water supply flow. This allows garbage to pass smoothly through the support frame and into the support compartment, where it is filtered by the obliquely arranged grid. This effectively prevents garbage accumulation and blockage. Furthermore, the structure does not need to extend outwards and will not obstruct road traffic. Additionally, the needles and their repeated movement allow adhered plastic bags and other debris to detach from the first and second railings, further reducing the possibility of blockage.

[0008] In a preferred embodiment, the algae suppression mechanism includes: a shaped groove disposed on the inner wall of the bottom end of the sealing plate, and the inner wall of the shaped groove is provided with a plurality of connecting holes; a second horizontal plate disposed in the shaped groove, and two inclined plates are fixedly connected to one side of the outer wall of the second horizontal plate. The algae suppression mechanism further includes: multiple support shafts, fixedly connected to the connection between the horizontal plate and the inclined plate, and the multiple support shafts are located in the multiple connecting holes; multiple torsion springs, respectively sleeved on the outside of the multiple support shafts, with one end fixedly connected to the outer wall of the support shaft and the other end fixedly connected to the inner wall of the connecting hole; The algae suppression mechanism further includes: two glass frames, which are fixedly embedded in two inclined plates respectively; and two ultraviolet lamps, which are fixedly installed in the two glass frames respectively, and the ultraviolet light can pass through the glass frames.

[0009] By incorporating an algae suppression mechanism, the UV lamps can be intermittently irradiated at set times, allowing UV light to cover the surfaces of railing one, railing two, and the grid plate. This effectively suppresses algae growth, preventing blockages and ensuring long-term filtration efficiency. Furthermore, when the sealing plate is lifted, the inclined plate is submerged in the irregular groove, protecting the glass frame and UV lamps. When the sealing plate is closed, the inclined plate extends diagonally into the support chamber, ensuring complete UV lamp coverage.

[0010] In a preferred embodiment, the secondary filtration mechanism further includes: two swivels, symmetrically and obliquely fixedly connected to the inner walls of opposite sides of the support chamber, and the two sides of the grid plate are respectively movably connected to the swivels; two needles, fixedly connected to one side of the outer wall of the grid plate and close to its bottom position; and one horizontal plate, fixedly connected to the top outer wall of the grid plate, and a handle is fixedly connected to one side of the outer wall of the horizontal plate. The secondary filtration mechanism further includes: a square through slot, which is disposed through the horizontal plate; a hinge hole, which is symmetrically disposed on the inner walls of opposite sides of the support chamber, and the two sides of the sealing plate are hinged to the hinge hole through a hinge rod, the top of the support chamber is provided with an opening, and the sealing plate covers the top of the opening; and a square groove, which is disposed on the inner wall of the bottom end of the sealing plate. The secondary filtration mechanism further includes: hinge holes two, symmetrically arranged on the inner walls of opposite sides of the square groove; a hanging plate, passing through the square groove, and both sides of the hanging plate are respectively hinged to the hinge holes two through hinge rods two, and a handle two is fixedly connected to one side of the outer wall of the hanging plate; and an oblique angle one, set on the inner wall of the top of the support chamber, and one side of the sealing plate is movably attached to the oblique angle one.

[0011] The system features a two-stage filtration mechanism with angled grids. To ensure sufficient filtration surface area, the grids also need to be deep enough. This makes it difficult to clean the debris on the grid surface after heavy rain. By pulling one handle, the grid can be raised, making it easier for cleaners to remove the accumulated debris. The grid is also supported by an angled cover. By opening the hanging plate with the second handle, the hanging plate can be passed through a square slot to support the grid, further facilitating the cleaning of accumulated debris.

[0012] As described above, a municipal sewage pipe network drainage purification and treatment device includes a supporting chamber and a sealing plate movably connected to the top of the supporting chamber. The supporting chamber is buried underground. It also includes: a primary filtration mechanism fixedly connected to one inner wall of the supporting chamber; a flow meter fixedly installed on one outer wall of the primary filtration mechanism; a secondary filtration mechanism located on the supporting chamber and the sealing plate; and an algae inhibition mechanism connected to the sealing plate. The primary filtration mechanism includes: a supporting frame, which is fixedly connected to one inner wall of the supporting chamber, and the flow meter is fixedly installed on one outer wall of the supporting frame; and multiple railings, equidistantly fixedly connected to the inner walls of opposite sides of the supporting frame. Multiple waist-shaped slots are equidistantly arranged through the inner walls of opposite sides of the support frame; railings two are movably inserted into the multiple waist-shaped slots, and multiple railings two are staggered with multiple railings one, with multiple needles one fixedly connected to the outer wall of each railing two and railing one on the same side; two side support plates one are movably fitted to the inner walls of both sides of the support frame and fixedly connected to the two ends of multiple railings two; side support plate two is fixedly connected to one side outer wall of one of the side support plates one; an electric telescopic rod is fixedly connected to the bottom inner wall of the support frame, and its output end is fixedly connected to the bottom outer wall of the side support plate two; the secondary filtration mechanism includes a grid plate, which is obliquely arranged in the support chamber. The municipal sewage pipe network drainage purification treatment device provided by the present invention can effectively avoid blockage caused by garbage accumulation, and at the same time, the structure does not need to extend outward and will not obstruct road traffic. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a municipal sewage pipe network drainage purification and treatment device proposed in this invention.

[0014] Figure 2 This is a schematic diagram showing the breakdown of the primary filtration mechanism of a municipal sewage pipe network drainage purification and treatment device proposed in this invention.

[0015] Figure 3 This is a schematic diagram showing the breakdown of the secondary filtration mechanism of a municipal sewage pipe network drainage purification treatment device proposed in this invention.

[0016] Figure 4 This is a schematic diagram showing the breakdown of the support structure of the secondary filtration mechanism of a municipal sewage pipe network drainage purification treatment device proposed in this invention.

[0017] Figure 5 This is a schematic diagram showing the algae suppression mechanism of a municipal sewage pipe network drainage purification and treatment device proposed in this invention.

[0018] In the diagram: 1. Flow meter; 2. Primary filtration mechanism; 3. Sealing plate; 4. Support chamber; 5. Limiting frame; 6. Secondary filtration mechanism; 7. Algae suppression mechanism; 201. Support frame; 202. Railing 1; 203. Sliding block; 204. Side support plate 1; 205. Railing 2; 206. Sliding rod; 207. Waist-shaped through groove; 208. Drain hole; 209. Side support plate 2; 210. Electric telescopic rod; 211. Needle 1; 601. Slide groove; 602. Hinge hole 1; 603. Angled angle one; 604. Horizontal plate one; 605. Square through slot; 606. Grid plate; 607. Handle one; 608. Needle two; 609. Hinge hole two; 610. Square groove; 611. Hinge rod two; 612. Hanging plate; 613. Hinge rod one; 614. Handle two; 701. Irregular groove; 702. Connecting hole; 703. Horizontal plate two; 704. Angled plate; 705. Glass frame; 706. Ultraviolet lamp; 707. Torsion spring; 708. Support shaft. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] The municipal sewage pipe network drainage purification and treatment device disclosed in this invention is mainly applied to the scenario of municipal sewage pipe network drainage purification.

[0021] Reference Figure 1 and Figure 2 A municipal sewage pipe network drainage purification and treatment device includes a support chamber 4 and a sealing plate 3 movably connected to the top of the support chamber 4. The support chamber 4 is buried underground. The device also includes: The primary filtration unit 2 is fixedly connected to the inner wall of one side of the support chamber 4; The flow meter 1 is fixedly installed on one side of the outer wall of the primary filtration unit 2; The secondary filtration mechanism 6 is located on the support chamber 4 and the sealing plate 3; Algae suppression mechanism 7 is connected to sealing plate 3; The primary filtration unit 2 includes: The support frame 201 is fixedly connected to one side of the inner wall of the support chamber 4, and the flow meter 1 is fixedly installed on one side of the outer wall of the support frame 201. Multiple railings 202 are fixedly connected at equal intervals to the inner walls of opposite sides of the support frame 201; Multiple waist-shaped through slots 207 are equidistantly arranged through the inner walls of opposite sides of the support frame 201; The second railing 205 is movably inserted into multiple waist-shaped slots 207, and the multiple second railings 205 are staggered with the multiple first railings 202. Multiple needles 211 are fixedly connected to the outer wall on the same side of each second railing 205 and the first railing 202. Two side support plates 204 are movably fitted to the inner walls of both sides of the support frame 201 and are fixedly connected to both ends of multiple railings 205. Side support plate 209 is fixedly connected to one side outer wall of one of the side support plates 204; The electric telescopic rod 210 is fixedly connected to the inner wall of the bottom end of the support frame 201, and its output end is fixedly connected to the outer wall of the bottom end of the side support plate 209. When the flow meter 1 detects that the sewage flow rate has increased, the electric telescopic rod 210 drives multiple railings 205 to move horizontally in the waist-shaped through groove 207, so that the railings 205 are attached to one side of the railing 202, thereby expanding the cross section of the water supply flow and allowing the garbage to pass smoothly through the support frame 201 and enter the support chamber 4. The secondary filtration mechanism 6 includes a grid plate 606, which is obliquely arranged inside the support chamber 4. The garbage entering the chamber is filtered by the obliquely arranged grid plate 606. Based on the arrangement of the grid plate 606, the oblique arrangement and the expansion of the filtration area effectively prevent garbage accumulation and blockage. At the same time, this structure does not need to extend outward and will not obstruct road traffic. Based on the setting of the needle 211, when the sewage flow rate increases and lasts for a long time, the electric telescopic rod 210 is intermittently controlled to reciprocate while changing the filtration spacing. This prevents large garbage such as plastic bags from covering the outside of the railings 205 and 202 after the spacing is expanded. The needle 211 penetrates the plastic bag, and the reciprocating movement of the railing 205 can puncture the plastic bag and make it detach from the railings 205 and 202, further reducing the possibility of blockage.

[0022] Reference Figure 2 In a preferred embodiment, the inner wall of the support chamber 4 is fixedly connected to the limiting frame 5, and the bottom end of the sealing plate 3 is movably attached to the top end of the limiting frame 5. The primary filtration unit 2 also includes: Multiple sliders 203 are simultaneously fixedly connected to the outer wall of one side of the other side support plate 204; Multiple sliding rods 206 are fixedly connected to the inner walls of the top and bottom ends of the support frame 201, and multiple sliders 203 are simultaneously movably sleeved on the sliding rods 206. The sliders 203 move on the sliding rods 206, which can assist the multiple railings 205 to move stably up and down, ensuring that the side support plate 204 can move and fit against the inner wall of the support frame 201 during the movement. Multiple drainage holes 208 are installed through one side of the inner wall of the support frame 201. The drainage holes 208 allow sewage entering the support frame 201 to be discharged smoothly, preventing sewage from accumulating in the support frame 201 and causing corrosion.

[0023] Reference Figure 3 and Figure 4 In a preferred embodiment, the secondary filtration mechanism 6 further includes: Two slids 601 are symmetrically and obliquely fixedly connected to the inner walls of opposite sides of the support chamber 4, and the two sides of the grid plate 606 are respectively movably connected to the slids 601. The second needle 608 is fixedly connected to one side of the outer wall of the grid plate 606 and is close to its bottom position. The grid plate 606 is set at an angle. In order to ensure sufficient filtration surface, the depth of the grid plate 606 also needs to be sufficient, which makes it difficult to clean the garbage on the surface of the grid plate 606 after heavy rain. The setting of the second needle 608 can limit the garbage located at the lower position to prevent it from slipping. The garbage at the lower position acts as a bottom blockage, so that the garbage at the top stays on the grid plate 606. Based on the setting of the slide groove 601, the grid plate 606 can be raised by pulling the first handle 607 to move the grid plate 606 at an angle, which makes it easier for cleaners to clean the garbage accumulated on the surface of the grid plate 606. A horizontal plate 604 is fixedly connected to the top outer wall of the grid plate 606, and a handle 607 is fixedly connected to one side outer wall of the horizontal plate 604.

[0024] Reference Figure 3 and Figure 4 In a preferred embodiment, the secondary filtration mechanism 6 further includes: A square through slot 605 is provided through the horizontal plate 604; Hinge holes 602 are symmetrically arranged on the inner walls of opposite sides of the support chamber 4, and the two sides of the sealing plate 3 are hinged to the hinge holes 602 by hinge rods 613. The top of the support chamber 4 is provided with an opening, and the sealing plate 3 covers the top of the opening. A square groove 610 is provided on the inner wall of the bottom end of the sealing plate 3.

[0025] Reference Figure 3 and Figure 4 In a preferred embodiment, the secondary filtration mechanism 6 further includes: Hinge hole 2 609 is symmetrically arranged on the inner walls of opposite sides of square groove 610; The hanging plate 612 passes through the square through slot 605, and both sides of the hanging plate 612 are respectively hinged to the hinge hole 609 by the hinge rod 611. A handle 614 is fixedly connected to one outer wall of the hanging plate 612. An inclined angle 603 is set on the inner wall of the top of the support compartment 4, and one side of the sealing plate 3 is movably attached to the inclined angle 603. At the same time, under the limiting effect of the inclined angle 603, the sealing plate 3 can ensure a certain angle of support. After opening the hanging plate 612 by the handle 614, the hanging plate 612 can pass through the square through slot 605 to support the grid plate 606, which makes it easier for cleaners to handle the accumulated garbage.

[0026] Reference Figure 5 In a preferred embodiment, the algae suppression mechanism 7 includes: The irregular groove 701 is provided on the inner wall of the bottom end of the sealing plate 3, and the inner wall of the irregular groove 701 is provided with a plurality of connecting holes 702 respectively; A horizontal plate 703 is set in the irregular groove 701, and two inclined plates 704 are fixedly connected to one side of the outer wall of the horizontal plate 703.

[0027] Reference Figure 5 In a preferred embodiment, the algae suppression mechanism 7 further includes: Multiple support shafts 708 are fixedly connected to the connection between the horizontal plate 703 and the inclined plate 704, and the multiple support shafts 708 are located in the multiple connecting holes 702 respectively; Multiple torsion springs 707 are respectively sleeved on the outside of multiple support shafts 708, with one end fixedly connected to the outer wall of the support shaft 708 and the other end fixedly connected to the inner wall of the connection hole 702.

[0028] Reference Figure 5 In a preferred embodiment, the algae suppression mechanism 7 further includes: Two glass frames 705 are respectively fixedly embedded in two inclined plates 704; Two ultraviolet lamps 706 are fixedly installed within two glass frames 705, and ultraviolet light can pass through the glass frames 705. Intermittent irradiation by the ultraviolet lamps 706 can be achieved through manual timing, allowing ultraviolet light to cover the surfaces of railing one 202, railing two 205, and grid plate 606. This effectively inhibits algae growth and prevents algae in damp environments from adhering to railing one 202, railing two 205, and grid plate 606, causing algae growth, clogging, and difficulty in cleaning. This ensures the filtration effect over long-term use. Furthermore, the torsion spring 707... When the sealing plate 3 is lifted, the inclined plate 704 rotates around the support shaft 708 and is inserted into the irregular groove 701, providing protection for the glass frame 705 and the ultraviolet lamp 706 to avoid accidental damage to the ultraviolet lamp 706 when cleaning the grid plate 606. When the sealing plate 3 is covering, one end of the horizontal plate 703 is pressed against the limiting frame 5, causing the horizontal plate 703 to move to a horizontal state. At this time, the inclined plate 704 disengages from the irregular groove 701 and extends obliquely into the support chamber 4, which ensures that the two sides of the ultraviolet lamp 706 face the railing 202, the railing 205 and the grid plate 606 respectively, thus ensuring complete coverage of the ultraviolet light.

[0029] Working principle: When the flow meter 1 detects an increase in sewage flow, the electric telescopic rod 210 drives multiple railings 205 to move horizontally within the waist-shaped through-slot 207, causing the railings 205 to fit against one side of the railing 202, thereby expanding the cross-section of the water flow and allowing waste to pass smoothly through the support frame 201 into the support chamber 4. The waste is then filtered by the obliquely set grid 606. Based on the setting of the grid 606, the oblique setting and the expansion of the filtration area effectively prevent waste accumulation and blockage. At the same time, this structure does not require outward extension. The extension will not obstruct road traffic. At the same time, based on the setting of the piercing needle 211, when the sewage flow rate increases and lasts for a long time, while changing the filter spacing, the electric telescopic rod 210 is also intermittently controlled to reciprocate. This prevents large garbage such as plastic bags from covering the outside of the railing 205 and railing 1 202 after the spacing is expanded. The piercing needle 211 passes through the plastic bag, and the reciprocating movement of railing 205 can puncture the plastic bag and make it detach from railing 205 and railing 1 202, further reducing the possibility of blockage.

[0030] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A municipal sewage pipe network drainage purification and treatment device, comprising a supporting chamber (4) and a sealing plate (3) movably connected to the top of the supporting chamber (4), wherein the supporting chamber (4) is buried underground, characterized in that, Also includes: The primary filtration mechanism (2) is fixedly connected to the inner wall of one side of the support chamber (4); The flow meter (1) is fixedly installed on one side of the outer wall of the primary filtration unit (2); The secondary filtration mechanism (6) is located on the support chamber (4) and the sealing plate (3); Algae suppression mechanism (7) is connected to sealing plate (3); The primary filtration mechanism (2) includes: The support frame (201) is fixedly connected to the inner wall of one side of the support chamber (4), and the flow meter (1) is fixedly installed on the outer wall of one side of the support frame (201); Multiple railings (202) are fixedly connected at equal intervals to the inner walls of opposite sides of the support frame (201); Multiple waist-shaped through slots (207) are equidistantly arranged through the inner walls of opposite sides of the support frame (201); The second railing (205) is movably inserted into multiple waist-shaped slots (207), and multiple second railings (205) are staggered with multiple first railings (202). Multiple first needles (211) are fixedly connected to the outer wall of each second railing (205) and first railing (202) on the same side. Two side support plates (204) are movably fitted to the inner walls of both sides of the support frame (201) and fixedly connected to both ends of multiple railings (205); Side support plate two (209) is fixedly connected to one side outer wall of one of the side support plates one (204); The electric telescopic rod (210) is fixedly connected to the bottom inner wall of the support frame (201), and its output end is fixedly connected to the bottom outer wall of the side support plate (209). The secondary filtration mechanism (6) includes: A grid plate (606) is obliquely arranged inside the support chamber (4); Hinge hole 1 (602) is symmetrically arranged on the inner walls of opposite sides of the support chamber (4), and the two sides of the sealing plate (3) are hinged to the hinge hole 1 (602) by hinge rod 1 (613). The top of the support chamber (4) is provided with an opening, and the sealing plate (3) covers the top of the opening. A square groove (610) is provided on the inner wall of the bottom end of the sealing plate (3); The algae suppression mechanism (7) includes: The irregular groove (701) is provided on the inner wall of the bottom end of the sealing plate (3), and the inner wall of the irregular groove (701) is provided with a plurality of connecting holes (702). A horizontal plate (703) is set in a shaped groove (701), and two inclined plates (704) are fixedly connected to one side of the outer wall of the horizontal plate (703). The algae suppression mechanism (7) also includes: Multiple support shafts (708) are fixedly connected to the connection between the horizontal plate (703) and the inclined plate (704), and the multiple support shafts (708) are located in the multiple connecting holes (702); Multiple torsion springs (707) are respectively sleeved on the outside of multiple support shafts (708), with one end fixedly connected to the outer wall of the support shaft (708) and the other end fixedly connected to the inner wall of the connecting hole (702); The algae suppression mechanism (7) also includes: Two glass frames (705) are fixedly embedded in two inclined plates (704); Two ultraviolet lamps (706) are fixedly installed in two glass frames (705) respectively, and ultraviolet light can pass through the glass frames (705). The inner wall of the support chamber (4) is fixedly connected to the limiting frame (5), and the bottom end of the sealing plate (3) is movably attached to the top end of the limiting frame (5).

2. The municipal sewage pipe network drainage purification and treatment device according to claim 1, characterized in that, The primary filtration mechanism (2) also includes: Multiple sliders (203) are simultaneously fixedly connected to the outer wall of one side of the other side support plate (204); Multiple sliding rods (206) are fixedly connected to the inner walls of the top and bottom ends of the support frame (201), and multiple sliders (203) are simultaneously movably sleeved on the sliding rods (206); Multiple drainage holes (208) are provided through the inner wall of one side of the support frame (201).

3. The municipal sewage pipe network drainage purification and treatment device according to claim 1, characterized in that, The secondary filtration mechanism (6) also includes: Two slids (601) are symmetrically and obliquely fixed to the inner walls of opposite sides of the support chamber (4), and the two sides of the grid plate (606) are respectively movably connected to the slids (601); The second needle (608) is fixedly connected to one side of the outer wall of the grid plate (606) and close to its bottom position; A horizontal plate (604) is fixedly connected to the top outer wall of the grid plate (606), and a handle (607) is fixedly connected to one side outer wall of the horizontal plate (604).

4. The municipal sewage pipe network drainage purification and treatment device according to claim 3, characterized in that, The secondary filtration mechanism (6) also includes: A square through slot (605) is provided through the horizontal plate (604).

5. A municipal sewage pipe network drainage purification and treatment device according to claim 4, characterized in that, The secondary filtration mechanism (6) also includes: Hinge hole 2 (609) is symmetrically arranged on the inner walls of opposite sides of square groove (610); The hanging plate (612) passes through the square through slot (605), and the two sides of the hanging plate (612) are respectively hinged to the hinge hole (609) by the hinge rod (611), and a handle (614) is fixedly connected to one side of the outer wall of the hanging plate (612). An inclined angle (603) is set on the inner wall of the top of the support chamber (4), and one side of the sealing plate (3) is movably attached to the inclined angle (603).

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