Municipal garden pipeline drainage device

Abstract

The invention discloses a municipal garden pipeline drainage device, and belongs to the technical field of municipal garden drainage, the municipal garden pipeline drainage device comprises a drainage well lid and a drainage channel below the drainage well lid, a lifting transverse plate located in the drainage channel is arranged under the drainage well lid, and plate pieces which are in one-to-one correspondence with drainage ports and are aligned with the drainage ports are fixedly mounted on the lifting transverse plate; the section specification of the plate is matched with the corresponding water outlet above the plate; a lifting block capable of ascending and descending is installed on the drainage well lid, a spring is arranged below the lifting block, a transmission assembly is arranged between the lifting block and the lifting transverse plate, and the lifting block is pressed downwards through external force to drive the lifting transverse plate to ascend; the drainage well lid is provided with a narrow drainage port and a wide drainage port with a heightening frame and a cover plate. Daily treading can be utilized for automatic dredging, blocking and impurity falling prevention during cleaning are achieved, the floating plate type transverse plate can prevent backflow, the functions of efficient drainage, dynamic blocking prevention and convenient cleaning are integrated, the structure is simple, electric power is not needed, and the operation and maintenance cost is low.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the technical field of municipal garden drainage, in particular to a municipal garden pipeline drainage device. BACKGROUND

[0002] The municipal garden pipeline drainage device is an important part of urban infrastructure, mainly responsible for collecting and draining rainwater and surface runoff in garden green spaces, garden roads and squares, preventing waterlogging, maintaining garden landscape functions and ensuring public safety. A typical drainage device usually includes a drainage pipeline underground and a drainage well cover installed on the road surface, with a grid or hole on the cover for water accumulation to flow in. Such devices are exposed to the outdoors for a long time, directly facing the invasion of fallen leaves, weeds, silt, garbage and other debris, and their drainage efficiency and anti-blocking ability are crucial.

[0003] Currently, the common existing technical solutions for drainage port blockage mainly include the following: First, multi-layer grids or filter baskets with different hole diameters are used for physical interception. This method has good anti-blocking effect in the early stage, but debris is easy to accumulate on the surface of the grid, which needs to be cleaned frequently by hand, and the filter basket itself may become a new blockage point. Second, a movable cover plate that can be rotated or opened is designed, which is opened by maintenance personnel with tools for cleaning when blocked. Although this method is direct and effective, it is cumbersome to operate, not timely to respond, and dependent on tools and has safety risks. Third, a self-cleaning structure is designed using the principle of hydraulic flushing, but the effect is limited at the beginning of precipitation or when the water flow is small, and the structure is complex. In terms of anti-backflow, a separate check valve or float valve is usually installed downstream of the pipeline, independent of the anti-blocking function of the well cover.

[0004] In summary, there is an urgent need to design a new municipal garden pipeline drainage device to integrate efficient drainage, dynamic anti-blocking, convenient cleaning and other functions organically, and fundamentally change the passive cycle of drainage, cleaning and blocking. SUMMARY

[0005] The technical solution of the present application provides a significantly different solution from the existing technology to solve the technical problem that the existing technical solutions are too single. It mainly provides a municipal garden pipeline drainage device to solve the problem that the drainage, anti-blocking and cleaning functions in the existing technology are mutually fragmented, rely on passive human intervention, and the complex movable mechanism has insufficient reliability in harsh environments. The present application aims to realize a self-maintenance drainage scheme that can automatically trigger dredging using daily traffic and provide anti-falling protection for manual cleaning.

[0006] The technical solution adopted by the present application to solve the above technical problems is: A kind of municipal garden pipeline drainage device, including drainage well lid and the drainage passage located below it, drainage well lid is penetrated with drainage port; The bottom of drainage well lid is provided with lifting horizontal plate in drainage passage, lifting horizontal plate is fixedly installed with plate piece corresponding to drainage port one by one and aligning, and the cross section specification of plate piece is adapted to the corresponding drainage port above it; Lifting block is installed on drainage well lid, spring is provided below lifting block, transmission assembly is provided between lifting block and lifting horizontal plate, and transmission assembly is used to convert the pressure of lifting block to lifting force of lifting horizontal plate;Lifting horizontal plate is lifted by external force depressing lifting block;When lifting horizontal plate is lifted in place (lifting block is completely depressed, and the top of it is flush with the upper end surface of drainage well lid at this time), the upper end surface of plate piece is not lower than the upper end port of drainage port.

[0007] For those skilled in the art, there has been a significant technical pain and mindset for a long time: the prevention of clogging and the prevention of falling debris (i.e. preventing debris from falling into the pipeline when cleaning) of drainage port are usually considered as two independent operation and maintenance links that need to be handled at different time points.

[0008] The prior art focuses on how to intercept or dredge the drainage passage itself, and fails to creatively transform the high-frequency behavior of daily passage into a preventive maintenance power source. Specifically, the technical bias is reflected in: 1) It is believed that the solution to the clogging problem depends completely on passive filtering or active manual intervention, and the former is easy to block and the latter is inefficient; 2) It is not realized that a simple human / vehicle stepping action can be used to create conditions for safe cleaning and instant dredging of the drainage port through ingenious mechanical linkage. This systematic solution that integrates passive drainage, active triggering, multi-function integration and environmental self-adaptation is the mental barrier that the existing technology cannot overcome, and is the core that the present invention aims to break through.

[0009] The present application is provided with a containing groove on the drainage well lid, an inner lifting block and a spring at the bottom, the lifting block is in the initial state to close the containing groove, which prevents the invasion of debris and can receive the stepping force. The present application discards the single idea of passive filtering or active manual intervention in the prior art, and utilizes the natural power of daily passage stepping when a person / car steps on the lifting block to convert it into lifting power of lifting horizontal plate through transmission assembly;When the spring is released, the lifting horizontal plate falls under the action of gravity, forming a cycle of triggering and resetting power.

[0010] The application is provided with a transmission assembly between the lifting block and the lower lifting horizontal plate, so as to realize accurate transmission of the stepping force. When a person / car steps quickly (daily traffic scene), the lifting block is quickly pressed down and reset, drives the lifting horizontal plate to lift and lower at a high frequency, the plate member enters and exits the corresponding drain port along with the horizontal plate, scrapes off the silt and sundries attached to the inner wall of the drain port, realizes instant dredging, prevents blockage from the source, and completely gets rid of the easy-to-block defect of passive filtration.

[0011] The lifting horizontal plate of the application is fixedly provided with a plate member corresponding to the drain port and matching in cross-sectional specification. When it is necessary to manually clean sundries on the surface of the drain well cover, the operator long-presses the lifting block, the spring is kept in a compressed state, the transmission assembly drives the lifting horizontal plate to rise to a position (the upper end surface of the plate member is flush with the upper port of the drain port), and the drain port is completely blocked. At this time, the fallen leaves, garbage and other sundries cleaned will not fall into the drain passage, meeting the core requirement of preventing sundries from falling during cleaning.

[0012] In summary, the single mechanical linkage of the application simultaneously meets the three major requirements of passive drainage, active triggering maintenance and environmental self-adaptation, breaking through the thinking barrier of the fragmented functions of the prior art.

[0013] Further, a receiving groove is formed in the drain well cover, the lifting block and the spring are arranged in the receiving groove, and when the spring is in an initial state, the lower end of the lifting block is located at the receiving groove opening and closes the receiving groove opening. The closed design of the receiving groove blocks sundries and rainwater from entering the transmission area in the groove, prevents sundries such as silt and fallen leaves from invading the internal transmission structure, reduces transmission jamming failure, and improves the outdoor durability of the device.

[0014] Further, two vertically arranged partition plates are connected in the receiving groove of the drain well cover, and the spring is located between the two partition plates. The partition plates laterally limit and protect the spring, avoiding force deviation or entanglement of the spring by sundries, protecting the spring from external force impact and corrosion, prolonging the service life of the spring, and ensuring the elastic reset reliability of the lifting block.

[0015] Further, the transmission assembly includes a first rope and a second rope respectively pulling two opposite sides of the lifting horizontal plate, a lifting vertical plate is fixedly connected below the lifting block, a moving roller is installed on the lifting vertical plate, a fixed roller is installed on the drain well cover and arranged alternately and intermittently with the moving roller, and the first rope and the second rope pass through the bottom of the moving roller and the top of the fixed roller. When the lifting block is pressed down, the lifting vertical plate drives the moving roller to descend, forming a height difference with the fixed roller, tightening the ropes and uniformly transmitting the pulling force to both sides of the lifting horizontal plate. The transmission process is accurate and efficient, ensuring the horizontal lifting of the lifting horizontal plate, the accurate alignment of the plate member and the drain port at all times, and avoiding invalid dredging or incomplete blocking caused by misalignment; and the structure is simple and easy to maintain, without complex electronic components, and the failure probability is low.

[0016] Further, the two sides of the lifting block are connected with lifting vertical plates, and the opposite sides of the two lifting vertical plates are connected with a row of moving rollers. The design of double vertical plates and multiple moving rollers increases the pulling points of the rope, ensures the balanced force of the lifting horizontal plate, disperses the force, and reduces the wear of a single point.

[0017] Further, the transmission assembly comprises an air bag, an air pipe and a telescopic cylinder. The air bag is arranged below the lifting block. The telescopic cylinder is installed at the bottom of the drainage channel, and the piston of the telescopic cylinder is fixedly connected with the bottom surface of the lifting horizontal plate. The air pipe communicates the air bag and the telescopic cylinder. Under the action of external force, the lifting block presses the air bag, the gas in the air bag is sent into the telescopic cylinder through the air pipe, the piston is driven to drive the lifting horizontal plate to rise, and the spring resets the air bag to suck the gas in the telescopic cylinder back, and the lifting horizontal plate descends. The transmission process is stable and free of impact, and the lifting horizontal plate and the plate structure are protected.

[0018] Further, the lower end surface of the drainage well cover is fixedly connected with a vertically arranged guide rod, the guide rod penetrates through the lifting horizontal plate and is in sliding cooperation with the lifting horizontal plate, and the bottom of the guide rod is provided with a limiting block. The guide rod limits the movement direction of the lifting horizontal plate, and only allows vertical lifting. The limiting block prevents the horizontal plate from descending excessively and separating from the guide rod, and at the same time limits the lowest position of the horizontal plate, so as to ensure the normal smoothness of the drainage port. The inclination and deviation of the lifting horizontal plate during lifting are avoided, the accurate alignment of the plate and the drainage port is ensured, the effectiveness of dredging and plugging is improved, and the lifting horizontal plate is prevented from separating from the preset track due to water flow impact or external force, so as to protect the transmission assembly from being damaged.

[0019] Further, the lifting horizontal plate is a floating plate. When the drainage pipeline is reversed, the liquid level in the drainage channel rises, the floating plate is automatically floated by the buoyancy, the plate synchronously blocks the drainage port, and the anti-reversing function is realized. The anti-reversing function is integrated in the core structure, the overall structure of the device is simplified, the blocking is automatically triggered during reverse flow, the response speed is fast, the pollution of sewage reverse flow to the garden road and landscape is avoided, a set of core structure is shared for daily dredging and cleaning, there is no function conflict, and the integration degree and reliability of the device are further improved.

[0020] Further, the drainage port on the drainage well cover comprises a narrow drainage port and a wide drainage port. The upper end of the wide drainage port is provided with a heightening frame, a cover plate is arranged above the heightening frame, and a gap exists between the cover plate and the top of the heightening frame. During daily small-flow drainage, the accumulated water flows into through the narrow drainage port. When it rains heavily or the narrow drainage port is blocked, the accumulated water flows into from the wide drainage port by overflowing the heightening frame. The cover plate blocks large-size sundries such as fallen leaves from entering the wide drainage port.

[0021] Further, the narrow plate is located directly below the narrow drainage port and is matched with the narrow drainage port, and the wide plate is located directly below the wide drainage port and is matched with the wide drainage port. When the narrow plate rises and falls with the lifting horizontal plate, the silt and small sundries adhered to the inner wall of the narrow drainage port are accurately scraped off, and the narrow drainage port is completely blocked when the lifting horizontal plate is in the up position. When the wide plate rises and falls with the lifting horizontal plate, the wide drainage port is accurately dredged, and the wide drainage port is completely blocked when the lifting horizontal plate is in the up position. The different specifications of the drainage port are dredged, the dredging effect is more thorough, and the problem of blockage of the filter basket itself in the traditional filtering mode is avoided. When the plate is blocked, the plate is completely matched with the specification of the drainage port, the sealing is tight, no sundries fall in during cleaning, and the anti-dust effect is more reliable.

[0022] Further, the two ends of the cover plate are provided with limiting plates, and strip-shaped openings are formed in the limiting plates. The two ends of the high frame are fixed with positioning plates penetrating through the strip-shaped openings, and the height of the strip-shaped opening is greater than the height of the positioning plate. The outer side of the positioning plate is provided with a baffle, and the length of the baffle is greater than the length of the strip-shaped opening, so as to prevent the cover plate from falling off. When the wide plate rises, the cover plate will be lifted, and the cover plate will move up and down along the strip-shaped opening to shake off the sundries in the inner gap of the cover plate, so as to avoid the cover plate from being blocked and affecting drainage. The cover plate can move synchronously with the wide plate, and manual cleaning of the gap of the cover plate is not needed, thereby further reducing the operation and maintenance workload.

[0023] Compared with the prior art, the present application has the following advantages: (1) The present application is provided with a lifting horizontal plate directly below the drainage well cover, and the lifting horizontal plate is provided with a plate corresponding to the drainage port and matched with the specification of the drainage port. A lifting block and a bottom spring are arranged on the drainage well cover, and a transmission assembly is arranged between the lifting block and the lifting horizontal plate. In daily scenarios, after pedestrians / vehicles step on the lifting block, the spring quickly resets, drives the lifting horizontal plate to rise and fall at a high frequency, and the plate enters and exits the drainage port, thereby realizing dredging of the drainage port. In the cleaning scenario, the lifting block is pressed for a long time by a person, the lifting horizontal plate is lifted to the position, the plate completely blocks the drainage port, and the secondary blockage caused by the sundries falling into the drainage channel during cleaning is avoided, and the safety hazard of the traditional cleaning method is eliminated. The present application breaks through the limitation of independent processing of anti-blocking and anti-dust in the prior art. The same structure can realize daily dredging and anti-blocking, and can also realize anti-dust during cleaning. Passive operation and maintenance is converted into active maintenance, and no additional tools or independent operation is needed, so that the operation and maintenance efficiency is improved. The pure mechanical structure does not depend on electricity, is suitable for unattended scenarios in gardens, and can reduce the operation and maintenance cost.

[0024] (2) The drainage outlet of the present invention includes a narrow drainage outlet and a wide drainage outlet; the upper end of the wide drainage outlet is provided with a raised frame, and a cover plate is provided on top, with a gap between the cover plate and the top of the raised frame. During daily low-flow drainage, the accumulated water flows in through the narrow drainage outlet; during heavy rain or when the narrow drainage outlet is congested, the accumulated water overflows the raised frame and flows in through the wide drainage outlet; the cover plate prevents large debris such as fallen leaves from entering the wide drainage outlet. It realizes an adaptive drainage mode of narrow drainage for small water flow and wide drainage for large water flow, prevents debris blockage in daily life, and quickly discharges floodwater during heavy rain, thereby improving drainage efficiency and effectively preventing waterlogging in the garden; the combined design of the cover plate and the raised frame ensures emergency drainage capacity while reducing the amount of debris entering the drainage channel, thus reducing the probability of blockage from the source.

[0025] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure after being cut along the vertical center plane according to one embodiment of the present invention; Figure 3 for Figure 2 Enlarged structural diagram of region A in the middle; Figure 4 This is a structural cross-sectional view of one embodiment of the transmission component of the present invention, where the guide rod and drainage channel are not shown. Figure 5 This is a partial schematic diagram of one embodiment of the transmission component of the present invention; Figure 6 This is a structural cross-sectional view of another embodiment of the transmission component of the present invention; Figure 7 This is a partial structural cross-sectional view of an optimized scheme of the cover plate of the present invention.

[0027] Reference numerals: 1. Drainage channel; 2. Drainage well cover; 21. Narrow drainage outlet; 22. Cover plate; 221. Limiting plate; 222. Strip-shaped opening; 23. Lifting block; 231. Lifting vertical plate; 24. Wide drainage outlet; 241. Heightening frame; 242. Positioning plate; 25. Partition plate; 3. Lifting horizontal plate; 31. Narrow plate; 32. Wide plate; 33. Guide rod; 4. Transmission assembly; 41. First rope; 42. Second rope; 43. Moving roller; 44. Fixed roller; 45. Airbag; 46. Ventilation pipe; 47. Telescopic cylinder; 5. Spring. Detailed Implementation

[0028] For the purpose of clarity, the present application will be described with reference to the attached drawings showing several embodiments of the present application. The application may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0029] It is to be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present therebetween. The terms "vertical", "horizontal", "left", "right" and the like as used herein are used for explanation purposes only and are not intended to limit the application.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "and / or" includes a combination of one or more of the associated listed items.

[0031] Embodiment: Please refer to the attached drawings Figure 1 A municipal garden pipeline drainage device, comprising a drainage channel 1 arranged underground and a drainage well cover 2 embedded beside the road surface, the drainage channel 1 is connected below the drainage well cover 2; a drainage port is arranged on the drainage well cover 2, through which the road surface water can flow into the drainage channel 1. In application, a plurality of drainage devices are arranged along the side of the municipal garden road surface, the drainage pipeline is embedded underground, and the plurality of drainage devices are connected with the drainage pipeline. The road surface water enters the drainage pipeline through the drainage device and is finally discharged into the river or treated by the water treatment device and then reused.

[0032] Specific description, please refer to the attached drawings Figure 1 -attached drawings Figure 4 The drainage port on the drainage well cover 2 comprises narrow drainage ports 21 and wide drainage ports 24 arranged alternately and intermittently, and the upper end of the wide drainage port 24 is provided with a raised frame 241 with a height of 0.5-3 cm, and the bottom of the raised frame 241 is in sealing connection with the drainage well cover 2. A cover plate 22 is arranged above the raised frame 241, and a gap exists between the cover plate 22 and the top of the raised frame 241. The cover plate 22 and the raised frame 241 can prevent debris such as fallen leaves from entering the wide drainage port 24.

[0033] In some embodiments, the raised frame 241 is integrally formed with the drainage well cover 2.

[0034] In some embodiments, please refer to the attached drawings Figure 3 -attached drawings Figure 4The cover plate 22 is in U-shaped structure, and gaps exist between the inner top of the cover plate 22 and the top of the raised frame 241 and between the side edges of the cover plate 22 and the raised frame 241, so that the road surface water can enter the inside of the raised frame 241 from the gaps while blocking sundries.

[0035] In some embodiments, the top surface of the cover plate 22 is arc-shaped (not shown in the figure), which can reduce the damage caused by collision.

[0036] In the application, since the narrow drainage port 21 is narrow and the wide drainage port 24 is completely covered, it is difficult for sundries such as fallen leaves to fall into the drainage channel 1. When the road surface water is less, the accumulated water enters the drainage channel 1 through the narrow drainage port 21; when the precipitation is excessive or there are too many sundries on the drainage well cover 2, the narrow drainage port 21 is insufficient in drainage capacity, and as the road surface water increases, the accumulated water can overflow the top of the raised frame 241 and be drained into the drainage channel 1 from the wide drainage port 24, so that a large amount of water can be drained and the road surface water is prevented from further increasing.

[0037] Further description, please refer to the accompanying drawings Figure 2 - the accompanying drawings Figure 4 The drainage well cover 2 is provided with a lifting horizontal plate 3 located in the drainage channel 1 directly below the drainage well cover 2, and the lifting horizontal plate 3 is fixedly installed with a narrow plate 31 and a wide plate 32. The narrow plate 31 is located directly below the narrow drainage port 21, and the length and width of the narrow plate 31 are matched with those of the narrow drainage port 21, and the height of the narrow plate 31 is greater than or equal to the depth of the narrow drainage port 21. The wide plate 32 is located directly below the wide drainage port 24, and the length and width of the wide plate 32 are matched with those of the wide drainage port 24, and the height of the wide plate 32 is greater than or equal to the sum of the depth of the wide drainage port 24 and the height of the raised frame 241.

[0038] Further description, the four end corners of the lifting horizontal plate 3 are all penetrated by guide rods 33, the guide rods 33 are vertically arranged and fixedly connected to the lower end surface of the drainage well cover 2, and the bottom of the guide rod 33 is provided with a limiting block.

[0039] Further description, please refer to the accompanying drawings Figure 4 and the accompanying drawings Figure 6 The upper end surface of the drainage well cover 2 is provided with a receiving groove, and the receiving groove is provided with a lifting block 23 and a spring 5 connected to the bottom of the lifting block 23, and the bottom of the lifting block 23 is provided with a transmission assembly 4 for driving the lifting horizontal plate 3 to move up and down. The transmission assembly 4 is triggered to drive the lifting horizontal plate 3 to move up when the lifting block 23 is stepped on, and the lifting horizontal plate 3 is lowered when the lifting block 23 is reset.

[0040] In some embodiments, please refer to the accompanying drawings Figure 2 - the accompanying drawings Figure 5, the transmission assembly 4 comprises a first rope 41, a second rope 42, a moving roller 43, a fixed roller 44, the bottom surface of the lifting block 23 is fixed with a lifting vertical plate 231 arranged vertically, the opposite sides of the two lifting vertical plates 231 are connected with a row of moving rollers 43, the two side walls of the accommodating groove of the water well cover 2 are connected with a row of fixed rollers 44, and the fixed rollers 44 and the moving rollers 43 are alternately and intermittently arranged, the first rope 41 is wound between the fixed roller 44 and the moving roller 43 on one side, and the first rope 41 is wound around the bottom of the moving roller 43 and the top of the fixed roller 44, and the second rope 42 is wound between the fixed roller 44 and the moving roller 43 on the other side in the same way, and the two ends of the first rope 41 are connected to the two ends of one side of the lifting horizontal plate 3, and the two ends of the second rope 42 are connected to the two ends of the other side of the lifting horizontal plate 3.

[0041] In some embodiments, please refer to the accompanying drawings Figure 3 - the accompanying drawings Figure 4 The bottom of the accommodating groove is connected with two partition plates 25 located between the two lifting vertical plates 231, and the spring 5 is located between the two partition plates 25, so that the spring 5 can be better protected.

[0042] In some embodiments, the first rope 41 and the second rope 42 are made of stainless steel wire (such as 304 / 316) or ultra-high molecular weight polyethylene (UHMWPE) fiber rope (such as Dyneema), which is not easy to break, and the latter has high strength, light weight, corrosion resistance, wear resistance and no water absorption.

[0043] In some embodiments, the lifting vertical plate 231 is made of glass steel (FRP) or stainless steel, which has strength and corrosion resistance.

[0044] In some embodiments, a plurality of lip-shaped sealing rings or U-shaped sealing rings are arranged at the opening of the lifting block 23 and the accommodating groove, and a water guide eave is designed at the edge of the opening, so as to prevent rainwater from directly pouring in.

[0045] In some embodiments, an extendable dustproof sleeve (such as an organ case) is additionally arranged on the guide rod 33 to prevent mud and sand from adhering.

[0046] When the above structure is applied, an external force is applied to the lifting block 23, the spring 5 is compressed, the lifting vertical plate 231 is lowered, the moving roller 43 is lowered synchronously, the height difference between the moving roller 43 and the fixed roller 44 is increased, the first rope 41 and the second rope 42 are simultaneously tightened, and the lifting horizontal plate 3 is lifted. After the lifting block 23 is released, the lifting block 23 is lifted under the restoring action of the spring 5, the ropes are loosened, and the lifting horizontal plate 3 is lowered and reset under the action of gravity.

[0047] In some other embodiments, please refer to the accompanying drawings Figure 6, the transmission assembly 4 includes an air bag 45, a breather pipe 46, and a telescopic cylinder 47. The air bag 45 is arranged in the accommodating groove, the lifting block 23 is located above the air bag 45, and springs 5 are arranged outside both ends of the air bag 45. The telescopic cylinder 47 is installed at the bottom of the drainage channel 1, and the piston of the telescopic cylinder 47 is fixedly connected with the bottom surface of the lifting horizontal plate 3. The breather pipe 46 is connected with the air bag 45 and the telescopic cylinder 47.

[0048] In some embodiments, the telescopic cylinder 47 is made of a corrosion-resistant stainless steel cylinder or an engineering plastic cylinder. The surface of the piston rod is plated with hard chromium or coated with Teflon. A bellows-type protective sleeve completely wraps the piston rod to prevent silt from entering. This greatly improves the durability of the core power unit.

[0049] In some embodiments, the breather pipe 46 is made of a nylon-coated stainless steel hose or a polyurethane (PU) air pipe. Quick-insert stainless steel joints are used to prevent leakage and aging. A miniature filtering pressure reducing valve is added to the breather pipe 46 to prevent water vapor and dust from entering the telescopic cylinder 47.

[0050] In use, when an external force is applied to the lifting block 23, the springs 5 are compressed, the air bag 45 is squeezed, and the internal gas is sent to the telescopic cylinder 47 through the breather pipe 46. The piston of the telescopic cylinder 47 rises and pushes the lifting horizontal plate 3 to rise. Under the restoring force of the springs 5, the lifting block 23 moves upward, the air bag 45 relaxes, and the gas in the telescopic cylinder 47 is sucked into the air bag 45. The piston and the lifting horizontal plate 3 both descend under the weight of the lifting horizontal plate 3.

[0051] In some embodiments, in the initial state, the lower end of the lifting block 23 is located in the accommodating groove and closes the accommodating groove, preventing debris from entering the accommodating groove.

[0052] The working principle of the above device is as follows: When it is necessary to clean the debris on the drainage well cover 2, the lifting block 23 is manually pressed down, and the lifting horizontal plate 3 is lifted by the transmission assembly 4. When the lifting horizontal plate 3 is lifted, the narrow plate 31 moves upward to be flush with the upper end of the narrow drainage opening 21, and the wide plate 32 blocks the wide drainage opening 24, so that debris does not fall into the drainage channel 1 during the cleaning process.

[0053] When pedestrians or vehicles pass by, the lifting block 23 is pressed down and then quickly returns to the original position in a short time, driving the lifting horizontal plate 3 to rise and fall once. During this process, the narrow plate 31 moves in and out of the narrow drainage opening 21, and the wide plate 32 moves in and out of the wide drainage opening 24, thereby dredging the drainage opening and preventing the drainage opening from being blocked.

[0054] In some embodiments, the lifting cross plate 3 is a floating plate. When the subsequent drainage pipeline is backfilled with water, the liquid level in the drainage channel 1 rises, which drives the lifting cross plate 3 to rise, and the narrow plate 31 and the wide plate 32 block the narrow drainage port 21 and the wide drainage port 24, respectively, so as to prevent sewage from backfilling and overflowing onto the road surface.

[0055] Further description, please refer to the accompanying drawings Figure 7 Both ends of the cover plate 22 are provided with limiting plates 221, and a strip-shaped port 222 is formed in the limiting plate 221. Both ends of the high frame 241 are fixed with positioning plates 242 which pass through the strip-shaped port 222, and the height of the strip-shaped port 222 is greater than that of the positioning plate 242. The outer side of the positioning plate 242 is provided with a baffle, and the length of the baffle is greater than that of the strip-shaped port 222.

[0056] In application, when the wide plate 32 rises with the lifting cross plate 3, the cover plate 22 can be lifted, so as to avoid the blockage of the gap inside the cover plate 22 by the sundries scraped from the inside of the wide drainage port 24 and the high frame 241. At the same time, the lifting movement of the side of the cover plate 22 can achieve a certain dredging effect, so as to avoid the blockage of the gap inside by the sundries.

[0057] The above description is exemplary in combination with the accompanying drawings. Obviously, the specific implementation of the present application is not limited by the above method. As long as the method concept and technical solution of the present application are adopted for non-essential improvement or direct application in other occasions without improvement, they are within the protection scope of the present application.

Claims

1. A municipal garden drainage system, comprising a drainage well cover (2) and a drainage channel (1) located below it, wherein a drainage outlet is provided through the drainage well cover (2); characterized in that: The drainage well cover (2) is provided with a lifting horizontal plate (3) located in the drainage channel (1) directly below it. The lifting horizontal plate (3) is fixedly installed with plates that correspond to and are aligned with the drainage outlets, and the cross-sectional specifications of the plates are adapted to the drainage outlets above them. The drainage well cover (2) is equipped with a liftable lifting block (23), and a spring (5) is provided below the lifting block (23). A transmission component (4) is provided between the lifting block (23) and the lifting plate (3). The lifting plate (3) is driven to rise by pressing down the lifting block (23) with external force. When the lifting plate (3) rises to the position, the upper end of the plate is not lower than the upper end of the drainage outlet.

2. A municipal garden pipeline drainage device according to claim 1, characterized in that: The drainage well cover (2) has a receiving groove, the lifting block (23) and the spring (5) are located in the receiving groove, and when the spring (5) is in the initial state, the lower end of the lifting block (23) is located in the receiving groove and closes the receiving groove. And / or, the drainage well cover (2) has two vertically arranged partitions (25) connected in the receiving groove, and the spring (5) is located between the two partitions (25).

3. A municipal garden pipeline drainage device according to claim 1, characterized in that: The transmission assembly (4) includes a first rope (41) and a second rope (42) that pull the lifting horizontal plate (3) on both opposite sides respectively. A lifting vertical plate (231) is fixedly connected to the lower part of the lifting block (23). A moving roller (43) is installed on the lifting vertical plate (231). A fixed roller (44) is installed on the drainage well cover (2) and is arranged intermittently with the moving roller (43). The first rope (41) and the second rope (42) pass around the bottom of the moving roller (43) and the top of the fixed roller (44).

4. A municipal garden pipeline drainage device according to claim 3, characterized in that: The lifting block (23) is connected to lifting vertical plates (231) on both sides below, and a row of moving rollers (43) is connected to the opposite sides of the two lifting vertical plates (231).

5. A municipal garden pipeline drainage device according to claim 1, characterized in that: The transmission assembly (4) includes an airbag (45), a vent pipe (46), and a telescopic cylinder (47). The airbag (45) is located below the lifting block (23). The telescopic cylinder (47) is installed at the bottom of the drainage channel (1), and the piston of the telescopic cylinder (47) is fixedly connected to the bottom surface of the lifting cross plate (3). The vent pipe (46) connects the airbag (45) and the telescopic cylinder (47).

6. A municipal garden pipeline drainage device according to claim 1, characterized in that: The lower end face of the drainage well cover (2) is fixed with a vertically arranged guide rod (33), the guide rod (33) passes through the lifting horizontal plate (3), and a limit block is provided at the bottom of the guide rod (33).

7. A municipal garden pipeline drainage device according to claim 1, characterized in that: The lifting horizontal plate (3) is a floating plate.

8. A municipal garden pipeline drainage device according to claim 1, characterized in that: The drainage outlet on the drainage well cover (2) includes a narrow drainage outlet (21) and a wide drainage outlet (24). The upper end of the wide drainage outlet (24) is provided with a raised frame (241). A cover plate (22) is provided on the top of the raised frame (241), and there is a gap between the cover plate (22) and the top of the raised frame (241).

9. A municipal garden pipeline drainage device according to claim 8, characterized in that: A narrow plate (31) and a wide plate (32) are fixedly installed on the lifting horizontal plate (3). The narrow plate (31) is located directly below the narrow drain outlet (21) and is adapted to the narrow drain outlet (21). The wide plate (32) is located directly below the wide drain outlet (24) and is adapted to the wide drain outlet (24).

10. A municipal garden pipeline drainage device according to claim 8, characterized in that: Both ends of the cover plate (22) are provided with limiting plates (221), and the limiting plates (221) are provided with strip openings (222). Both ends of the heightening frame (241) are fixed with positioning plates (242) that pass through the strip openings (222), and the height of the strip openings (222) is greater than the height of the positioning plates (242). The outer end of the positioning plates (242) is provided with baffles, and the length of the baffles is greater than the length of the strip openings (222).

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