A substation rainwater recycling device capable of realizing pollution and overflow prevention

Abstract

This invention relates to a substation rainwater recovery device capable of cleaning and overflow prevention, comprising a water storage tank, an observation pipe, an inlet pipe, an external sediment discharge pipe, an overflow pipe, an anti-clogging switch assembly, and a cleaning assembly. The observation pipe and inlet pipe are fixed to the top of the water storage tank, and the external sediment discharge pipe is fixed to the bottom of the water storage tank on the side away from the inlet pipe. An overflow pipe is fixed to the upper side of the water storage tank. The anti-clogging switch assembly consists of an end cap, a filter unit, and two sets of switch units. The end cap is located inside the water storage tank, aligned with the inside of the overflow pipe, and the filter unit is fixed to the outside of the end cap and inserted into the overflow pipe. The two sets of switch units are respectively located on the left and right sides of the end cap, enabling locking and unlocking between the end cap and the overflow pipe. The cleaning assembly is located inside the water storage tank and includes a mounting frame, a collection box supported within the mounting frame, a force-applying frame connected above the collection box, and a leakage switch assembly located at the bottom of the collection box. This invention achieves better sewage discharge and avoids overflow pipe blockage.

Description

Technical Field

[0001] This invention belongs to the field of substation rainwater recycling technology, specifically relating to a substation rainwater recycling device that can achieve both cleaning and overflow prevention. Background Technology

[0002] Currently, substations typically have rainwater storage tanks to store rainwater, which is currently discharged directly from the power station, leading to water waste. Rainwater is a polluted freshwater resource; recycling and utilizing it could alleviate the demand for freshwater and improve the environment. During rainfall, rainwater is affected by external factors, and the rainwater flowing into the substation's storage tanks is prone to containing floating debris. This debris accumulates on the surface of the water inside the tank. When the amount of rainwater in the tank becomes excessive, the excess water needs to be discharged through the overflow pipe. However, this process also causes the floating debris to flow into the overflow pipe, potentially clogging it and affecting the normal operation of the system. Furthermore, the debris affects water quality, hindering rainwater reuse. Therefore, it is essential to design a substation rainwater recycling system that can both remove debris and prevent overflow blockage. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a substation rainwater recycling device that can achieve cleaning and overflow prevention.

[0004] The above-mentioned objective of this invention is achieved through the following technical solution:

[0005] A substation rainwater recycling device that can achieve cleaning and overflow prevention includes a water storage tank, an observation pipe, an inlet pipe, an external sludge discharge pipe, an overflow pipe, an anti-clogging switch assembly, and a cleaning assembly.

[0006] The observation pipe and the water inlet pipe are both fixedly connected to the top of the water storage tank, and the external mud and sand discharge pipe is fixedly connected to the bottom of the water storage tank on the side away from the water inlet pipe; an overflow pipe is fixedly installed on the upper side of the water storage tank.

[0007] The anti-clogging switch assembly is located at the overflow pipe. The anti-clogging switch assembly consists of an end cap, a filter unit, and two sets of switch units. The end cap is located inside the water tank and positioned inside the overflow pipe. The filter unit is a cylindrical filter screen structure, fixed to the outside of the end cap and movably inserted into the overflow pipe along the axial direction of the pipe. The two sets of switch units are respectively located on the left and right sides of the end cap to achieve locking and unlocking between the end cap and the overflow pipe. Each set of switch units includes a threaded rod for connecting the end cap and the overflow pipe and a threaded rod rotation drive mechanism. The power input end of the threaded rod rotation mechanism is a float. The rotation drive of the threaded rod is achieved by the buoyancy and gravity of the float. When the float is in the initial support position, the end cap and the overflow pipe are in a locked state.

[0008] The cleaning assembly is located inside the water tank. The cleaning assembly includes a mounting frame, a collection box, a force-applying frame, and a leak switch assembly. The mounting frame floats above the water surface via a first float at its bottom. The collection box, elastically supported, is slidably mounted inside the mounting frame. The lower part of the force-applying frame is fixedly connected to the upper part of the collection box, and the upper part of the force-applying frame forms a guiding fit with the observation pipe. The leak switch assembly is mounted in a switch guide groove at the bottom of the collection box via a second float at its bottom, allowing it to move vertically. When the cleaning assembly is in a depressed state, the lower part of the leak switch assembly is pressed against the bottom of the collection box under buoyancy, sealing the filter holes at the bottom of the collection box. When the cleaning assembly is in an lifted state, gravity causes the leak switch assembly to move downwards and separate from the bottom of the collection box, opening the filter holes at the bottom of the collection box.

[0009] Furthermore, the water storage tank is placed in the placement pit, and the ends of the water inlet pipe, observation pipe, and external sludge discharge pipe that are furthest from the water storage tank all extend vertically upwards to the ground. An extension pipe is fixedly installed at the end of the overflow pipe, and the outer end of the extension pipe extends into the outside of the placement pit. Backfill soil is filled in the gaps between the water storage tank, observation pipe, water inlet pipe, external sludge discharge pipe, overflow pipe, and the inner wall of the placement pit to stabilize the recovery device in the placement pit.

[0010] Furthermore, the filter unit consists of a frame section and a filter screen section. The frame section consists of a fixing ring at both ends and a plurality of side rods that connect the fixing rings at both ends and are evenly distributed along the circumference. The fixing ring at the inner end is fixedly connected to the outer side of the end cap. Filter screens are installed between adjacent side rods and inside the fixing ring at the outer end. A sliding strip is fixedly connected to the top of the upper side rod. A sliding groove is opened on the inner wall of the top of the overflow pipe, and the sliding strip is slidably inserted into the sliding groove.

[0011] Furthermore, a mounting cavity is provided on each of the left and right sides of the inner end of the end cap, and an arc-shaped rack guide groove is provided connecting the upper and lower parts of the two mounting cavities; the threaded rod is rotatably mounted in the middle of the mounting cavity, and the rear part of the threaded rod extends through to the rear end of the end cap and is located on the outside of the filter unit. A threaded hole is provided on the side wall of the overflow pipe corresponding to the position of the threaded rod, and the rear end of the threaded rod is threaded into the threaded hole; the threaded rod rotation drive mechanism includes a gear, an open-ring gear, a gear bracket, an extension rod, and a float; the gear is fixedly mounted on the inner end of the threaded rod located inside the mounting cavity; the open-ring gear is inserted from top to bottom in the rack guide groove. The open-ring gear meshes with a gear; the gear bracket is located on the outside of the end cap, opposite to the mounting cavity. The gear bracket consists of an extended fixed rod and a support rod hinged to the outer end of the fixed frame. The other end of the support rod is perpendicularly fixed to the outer end of the open-ring gear. The hinge center of the support rod coincides with the center of the open-ring gear, forming the rotation center of the open-ring gear. The upper end of the extension rod is extended and fixedly connected to the outer end of the open-ring gear, and the float is fixed to the lower end of the extension rod. A stop rod is fixedly connected below the bottom of the fixed rod, and the stop rod abuts against the support rod, so that the angle between the extension rod and the water surface is an acute angle in the initial state.

[0012] Furthermore, an inner groove is provided on the inner side wall of the corner of the mounting frame, and a spring is installed in the inner groove. An extended support plate is fixedly connected to the upper part of the corner of the collection box. The extended support plate is slidably set in the inner groove. The upper and lower ends of the spring are fixedly connected to the bottom of the extended support plate and the bottom of the inner groove, respectively, so that the collection box is elastically supported in the mounting frame.

[0013] Furthermore, the mounting frame is positioned directly below the observation pipe, and an L-shaped first float is fixedly connected to the outer side of each of the four corners of the mounting frame; a first through groove is provided in the middle of each side of the mounting frame between two adjacent first floats to enable communication between the inside and outside of the mounting frame. The first through groove is inclined with the outside higher than the inside, and the outer port of the first through groove is the water inlet and the inner port is the water outlet; a second through groove is provided in the upper middle part of the side of the collection box to enable communication between the inside and outside of the collection box, and the second through groove is correspondingly provided with the first through groove.

[0014] Furthermore, the force-applying frame includes a lower cross plate, an upper cross plate, and a vertical connecting rod connecting the upper and lower cross plates. The outer ends of the four arms of the lower cross plate are respectively fixedly connected to the upper middle part of the four sides of the collection box through a connecting frame. The outer ends of the four arms of the upper cross plate are each vertically fixed with a guide plate. The four guide plates are in contact with the four sides of the inner wall of the observation pipe, so that the upper part of the force-applying frame is slidably installed in the observation pipe in a way that is movable up and down and limited in the circumferential direction.

[0015] Furthermore, a pull ring is fixed to the middle of the upper part of the upper cross plate, and a long hook is provided in conjunction with the pull ring. The upper end of the long hook is provided with a hooking ring, and the lower end of the long hook is provided with a bent hook. A wall hook for suspending the long hook is fixedly connected to the side wall near the upper end of the observation pipe near the corner.

[0016] Furthermore, the observation pipe is a transparent pipe, and the inner wall of the observation pipe is provided with a scale. The starting point of the scale is the lowest point of the observation pipe. When the first float contacts the bottom of the water tank, the guide plate is flush with the starting position of the scale.

[0017] Furthermore, the switch guide groove is rectangular, consisting of an upper groove and a lower groove, both of which are rectangular. Multiple filter holes are located around the periphery of the upper groove on the collection box, and a filter screen is installed in each filter hole. All filter holes are vertically connected to the lower groove.

[0018] The water leakage switch assembly consists of an anti-detachment plate, a middle connecting column, a water baffle plate, and multiple second floats fixed to the lower end of the water baffle plate, which are connected in sequence from top to bottom. The middle connecting column is a square column, and the middle connecting column and the upper groove of the switch guide groove form a guide insertion fit in the vertical direction. The anti-detachment plate is located above the bottom of the collection box, and the water baffle plate is located below the bottom of the collection box. The shape and size of the water baffle plate are the same as the shape and size of the lower groove of the switch guide groove.

[0019] The advantages and positive effects of this invention are as follows:

[0020] 1. This invention enables sediment discharge from a water storage tank via an external sludge discharge pipe. By incorporating an anti-clogging switch assembly, as the water level rises, the float rises, loosening the connecting end cap and overflow threaded pipe to allow overflow discharge. During overflow discharge, the water is filtered by a filter unit to prevent overflow pipe blockage. As the water level drops, the float descends with the weight of the water, gradually tightening the threaded rod. When the water level falls below the initial position of the float, the end cap and overflow function are fully locked, thus preventing excessive evaporation of rainwater inside the storage tank and facilitating rainwater storage.

[0021] 2. In this invention, a cleaning component is installed in the water storage tank at the position corresponding to the observation pipe. By pressing down the cleaning component, debris on the water surface can be collected into the collection box. At this time, the filter hole at the bottom of the collection box is blocked. Then, by lifting the cleaning component, the filter hole can be opened, and the water in the collection box can be discharged, thus cleaning the debris on the water surface.

[0022] 3. The present invention sets scale lines on the inner wall of the observation pipe. By aligning the scale lines with the guide plate on the upper part of the force application frame, the amount of rainwater stored inside the water storage tank can be easily determined. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall installation of the present invention;

[0024] Figure 2 This is an overall perspective view of the present invention;

[0025] Figure 3 This is a schematic diagram of the overall partial cross-section of the present invention;

[0026] Figure 4 yes Figure 3 A schematic diagram of a local structure in the image;

[0027] Figure 5 yes Figure 4 A schematic diagram of a local structure in the image;

[0028] Figure 6 This is a schematic diagram of the overall three-dimensional structure of the anti-blocking switch assembly of the present invention;

[0029] Figure 7 This is a cross-sectional view of the toothed meshing portion in the anti-blocking switch assembly of the present invention;

[0030] Figure 8 This is a schematic diagram of the installation of the cleaning component of the present invention;

[0031] Figure 9 This is a schematic diagram of the overall structure of the cleaning component of the present invention (partial cross-sectional views are provided at the corners);

[0032] Figure 10 This is a partial enlarged view of the corner of the cleaning component of the present invention;

[0033] Figure 11 This is a cross-sectional view of the cleaning component of the present invention floating on the water surface;

[0034] Figure 12 This is a cross-sectional view of the cleaning component of the present invention in the first stage of the cleaning state;

[0035] Figure 13 This is a cross-sectional view of the cleaning component of the present invention in the second stage of the cleaning state;

[0036] Figure 14 This is a schematic diagram of the structure of the observation pipe with graduations provided in this invention. Detailed Implementation

[0037] The structure of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that these embodiments are descriptive and not limiting.

[0038] Please refer to the following for a substation rainwater harvesting device that enables both cleaning and overflow prevention. Figures 1-14 Mainly includes

[0039] It includes a water storage tank 1, an observation pipe 5, an inlet pipe 3, an external mud and sand discharge pipe 2, an overflow pipe 6, an anti-blocking switch assembly 9, and a cleaning assembly 10.

[0040] The water storage tank is placed inside the placement pit, with a pad 8 positioned below it, contacting the bottom of the pit. The observation pipe and inlet pipe are fixedly connected to the top of the water storage tank, while the external discharge pipe is fixedly connected to the bottom of the water storage tank on the side furthest from the inlet pipe. The ends of the inlet pipe, observation pipe, and external discharge pipe, furthest from the water storage tank, extend vertically upwards to above ground level 4. An overflow pipe is fixedly installed on the upper side of the water storage tank, with an extension pipe 7 fixedly installed at its end, extending into the outside of the placement pit. Backfill soil is filled between the water storage tank, observation pipe, inlet pipe, external discharge pipe, overflow pipe, and the inner wall of the placement pit to secure the recovery device within the pit.

[0041] The anti-clogging switch assembly is located at the overflow pipe and prevents debris in the rainwater inside the water storage tank from clogging the overflow pipe. During operation, rainwater is collected into the water storage tank through the inlet pipe, and sediment at the bottom of the water storage tank is easily sucked out through the external sediment discharge pipe. When the amount of rainwater inside the water storage tank reaches a certain level, the anti-clogging switch assembly opens, and the excess rainwater is discharged to the outside of the water storage tank through the overflow pipe.

[0042] The cleaning component is installed inside the water tank and can form a guiding fit with the observation pipe in the vertical direction.

[0043] The key points of this invention are overflow prevention and cleaning, and the specific structure is as follows:

[0044] Anti-blocking switch assembly:

[0045] It includes an end cap 9.1, a filter unit 9.2, and a switch unit 9.3. The end cap is located inside the water storage tank and is positioned inside the overflow pipe. The outer diameter of the end cap is larger than the inner diameter of the overflow pipe so that the overflow pipe can be closed when the end cap is pressed against the opening of the overflow pipe.

[0046] The filter unit is fixedly installed on the outside of the end cap. The filter unit is movably inserted into the overflow pipe along the axial direction of the pipe. The filter unit is cylindrical in shape, consisting of a frame and a filter screen. The frame consists of fixing rings at both ends and multiple side rods 9.2.3 evenly distributed circumferentially, connecting the fixing rings at both ends. The inner fixing ring 9.2.1 is fixedly connected to the outside of the end cap. Filter screens 9.2.4 are installed between adjacent side rods and inside the outer fixing ring 9.2.2. A sliding strip is fixedly connected to the top of the upper side rod. A groove is formed on the inner wall of the top of the overflow pipe, and the sliding strip is slidably inserted into the groove, achieving a guiding engagement between the anti-clogging switch assembly and the overflow pipe.

[0047] A mounting cavity 9.1.1 is provided on each of the left and right sides of the inner end of the end cap. An arc-shaped rack guide groove 9.1.2 is provided connecting the upper and lower parts of the two mounting cavities. A set of switch units is installed in each of the two mounting cavities. The switch units are used to realize the switching connection between the end cap and the overflow pipe. The two sets of switch units are symmetrically arranged. Each set of switch units includes a threaded rod 9.3.1, a gear 9.3.2, an open-ring gear 9.3.3, a gear ring bracket, an extension rod 9.3.7, and a float 9.3.8. The threaded rod is rotatably installed in the middle of the mounting cavity. The rear part of the threaded rod extends through to the rear end of the end cap and is located outside the filter unit. A threaded hole is provided on the side wall of the overflow pipe corresponding to the position of the threaded rod. The rear end of the threaded rod is threaded into the threaded hole. The gear is fixedly connected to the inner end of the threaded rod inside the mounting cavity. The open-ring gear is installed from top to bottom in the rack guide groove. The open-ring gear meshes with the gear. The gear ring bracket is positioned on the outer side of the end cap, opposite to the mounting cavity. The gear ring bracket consists of an outwardly extending fixing rod 9.3.4 and a support rod 9.3.5 hinged to the outer end of the fixing frame. The other end of the support rod is perpendicularly and fixedly connected to the outer end of the open-ring gear ring. The hinge center of the support rod coincides with the center of the open-ring gear ring, forming the rotation center of the open-ring gear ring. The upper end of the extension rod extends and is fixedly connected to the outer end of the open-ring gear ring, and the float is fixed to the lower end of the extension rod.

[0048] In addition, a stop bar 9.3.6 is fixedly connected to the bottom of the fixed rod. The stop bar is L-shaped, and the upper end of the vertical side of the stop bar abuts against the support rod. During operation, the stop bar restricts the initial position of the support rod, so that the angle between the extension rod and the water surface in the initial state is an acute angle, thereby enabling the float to move backward and away during the rise in water level.

[0049] Using the aforementioned anti-clogging switch assembly, during operation, as the amount of rainwater inside the water tank increases, the water level rises until it contacts the lower end of the float. As the water level rises, it simultaneously drives the float upward. At this time, the float, extension rod, and open-ring gear rotate around the hinged connection between the support rod and the fixed rod. Through gear meshing, the gear and threaded rod rotate, causing the threaded rod to retract from the corresponding threaded hole, releasing the lock between the end cap and the overflow pipe. The end cap then moves the filter unit a certain distance into the water tank, connecting the overflow pipe to the inside of the water tank. Excess rainwater then enters the overflow pipe from the side of the filter unit and is discharged from the extension pipe. Simultaneously, the filter screen in the filter unit blocks debris in the rainwater, preventing debris from clogging the overflow pipe. When the amount of rainwater inside the water tank decreases, the weight of the float causes the extension rod and the open ring gear to move in opposite directions, which in turn causes the gear and the threaded rod to move in opposite directions. This causes the end cap and the filter unit to move in opposite directions, so that the end cap fits tightly with the inner end of the overflow pipe, thereby blocking the overflow port and preventing the rainwater inside the water tank from evaporating too quickly, making it easier to store rainwater.

[0050] Cleaning components:

[0051] The main components include a mounting frame 10.2, a collection box 10.3, a force-applying frame 10.4, and a leak switch assembly 10.5. The mounting frame is positioned directly below the observation pipe. An L-shaped first float 10.1 is fixedly connected to the outer side of each of the four corners of the mounting frame. The middle of the mounting frame is vertically continuous, and the collection box, elastically supported, is slidably mounted vertically inside the frame. Specifically, recessed grooves are formed on the inner sidewalls of the corners of the mounting frame, and springs 10.6 are installed in these grooves. Extended support plates 10.3.1 are fixedly connected to the upper corners of the collection box and slidably positioned within the recessed grooves. The upper and lower ends of the springs are fixedly connected to the bottom of the extended support plates and the bottom of the recessed grooves, respectively, to provide elastic support for the collection box.

[0052] A first through groove 10.2.1 is provided in the middle of the side of each side of the mounting frame (located between two adjacent first floats) to enable communication between the inside and outside of the mounting frame. The first through groove is preferably set to be inclined with the outside higher than the inside. The outer port of the first through groove is the water inlet and the inner port is the water outlet. During operation, it is convenient to introduce floating debris on the water surface into the collection box.

[0053] A second through slot 10.3.2 is provided at the upper middle part of the side of the collection box to enable communication between the inside and outside of the collection box.

[0054] The force-applying frame is connected above the collection box. It facilitates pressing down and lifting the collection box, thereby collecting debris floating on the water surface and filtering the collected water.

[0055] The force-applying frame mainly consists of a lower cross plate 10.4.5, an upper cross plate 10.4.2, and a vertical connecting rod 10.4.4 connecting the upper and lower cross plates. The outer ends of the four arms of the lower cross plate are fixedly connected to the upper center of the four sides of the collection box via a connecting bracket 10.4.6. Each of the four arms of the upper cross plate has a guide plate 10.4.3 vertically fixed to its outer end. These guide plates fit against the four sides of the inner wall of the observation pipe, allowing the upper part of the force-applying frame to slide within the observation pipe in a way that allows vertical movement while being limited in a circumferential direction. Additionally, a pull ring 10.4.1 is fixed to the upper center of the upper cross plate, and a long hook 11 is provided in conjunction with the pull ring. The upper end of the long hook has a hook-like ring, and the lower end has a curved hook. A wall hook 12 is fixedly connected to the side wall near the upper end of the observation pipe, close to the corner. It is used to cooperate with the upper end of the hook to suspend the long hook inside the observation pipe, so that it can be easily removed and used at any time.

[0056] During operation, as the amount of rainwater inside the storage tank increases, the first float causes the entire cleaning assembly to float on the water surface. The vertical connecting rod then pushes the second cross plate and four guide plates upwards along the observation pipe. When the rain stops, the flap at the top of the observation pipe can be opened, the long hook on the side of the pipe can be removed, and the bottom hook of the long hook can be hooked onto the pull ring at the top of the second cross plate. Then, by pressing the second cross plate downwards, and subsequently by pressing the first cross plate, connecting frame, and collection box downwards via the vertical connecting rod, the collection box moves upwards along the... The mounting frame slides downwards, while the extended support plate presses down on the spring, causing the collection box to move down until the second channel on the side aligns with the bottom outlet of the first channel. At the same time, the spring presses down on the mounting frame, making the inlet of the first channel flush with the water surface. At this point, there is a liquid level difference, and debris floating on the water surface enters the first and second channels with the water flow and eventually flows into the collection box to be collected, keeping the water relatively clean. Afterwards, the entire cleaning component can be lifted out of the observation pipe using a long hook and pull ring to facilitate cleaning the debris inside the collection box.

[0057] In this embodiment, a through-hole switch guide groove is provided in the middle of the bottom of the collection box. The switch guide groove is rectangular. The switch guide groove consists of an upper groove and a lower groove, both of which are rectangular. Multiple water filter holes 10.2.2 are provided on the outer periphery of the upper groove on the collection box, and a filter screen is installed in each water filter hole. All the water filter holes are vertically connected to the lower groove.

[0058] The water leakage switch assembly is slidably mounted within the switch guide groove. The water leakage switch assembly consists of an anti-detachment plate 10.5.1, a central connecting post 10.5.2, a water baffle 10.5.3 connected sequentially from top to bottom, and multiple floats 10.5.4 fixed to the lower end of the water baffle. The central connecting post is a square post, and it forms a guide insertion fit with the upper groove of the switch guide groove in the vertical direction. The anti-detachment plate is located above the bottom of the collection box, and its lower outer contour dimension needs to be smaller than the inscribed circle of the multiple filter holes to ensure that the anti-detachment plate does not block water during filtration. The water baffle is located below the bottom of the collection box, and its shape and size are consistent with the shape and size of the lower groove of the switch guide groove.

[0059] During operation, when the collection box is pressed downwards, the second float provides a counterforce, pushing the baffle plate tightly against the inner wall of the lower part of the switch guide groove. At this time, the bottom plate of the collection box does not leak water, allowing a liquid level difference to be formed between the inside of the collection box and the external water surface, which facilitates the collection of floating debris. When the cleaning component is lifted, the first and second floats separate from the water surface. At this time, under the influence of gravity, the entire leak switch assembly moves downwards along the switch guide groove. At this time, the baffle plate no longer blocks the filter holes, allowing rainwater to drain from the collection box, and debris is retained inside the collection box through the second filter screen.

[0060] In this embodiment, when the cleaning component is not subjected to force and floats on the water surface, the lower end faces of the first and second floats are flush.

[0061] In this embodiment, the observation pipe is a transparent pipe with graduations on its inner wall. The starting point of the graduations is the lowest point of the observation pipe. During operation, as the amount of rainwater inside the water tank increases, the cleaning component floats on the liquid surface, which in turn moves the guide plate above upward. This allows the scale position indicated by the guide plate to be observed, thereby determining the amount of rainwater stored inside the water tank.

[0062] In this embodiment, when the first float contacts the bottom of the water tank, the guide plate is aligned with the starting position of the scale. During operation, the amount of rainwater stored inside the water tank is determined by the scale position indicated by the guide plate.

[0063] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A substation rainwater harvesting device capable of cleaning and overflow prevention, characterized in that: Includes water storage tank, observation pipe, inlet pipe, external sludge discharge pipe, overflow pipe, anti-clogging switch assembly, and cleaning assembly; The observation pipe and the water inlet pipe are both fixedly connected to the top of the water storage tank, and the external mud and sand discharge pipe is fixedly connected to the bottom of the water storage tank on the side away from the water inlet pipe; an overflow pipe is fixedly installed on the upper side of the water storage tank. The anti-clogging switch assembly is located at the overflow pipe. The anti-clogging switch assembly consists of an end cap, a filter unit, and two sets of switch units. The end cap is located inside the water tank and positioned inside the overflow pipe. The filter unit is a cylindrical filter screen structure, fixed to the outside of the end cap and movably inserted into the overflow pipe along the axial direction of the pipe. The two sets of switch units are respectively located on the left and right sides of the end cap to achieve locking and unlocking between the end cap and the overflow pipe. Each set of switch units includes a threaded rod for connecting the end cap and the overflow pipe and a threaded rod rotation drive mechanism. The power input end of the threaded rod rotation mechanism is a float. The rotation drive of the threaded rod is achieved by the buoyancy and gravity of the float. When the float is in the initial support position, the end cap and the overflow pipe are in a locked state. The cleaning assembly is located inside the water storage tank. The cleaning assembly includes an installation frame, a collection box, a force-applying frame, and a leak switch assembly. The installation frame floats above the water surface via a first float at its bottom. The collection box, elastically supported, is slidably installed inside the installation frame. The lower part of the force-applying frame is fixedly connected to the upper part of the collection box, and the upper part of the force-applying frame forms a guiding fit with the observation pipe. The leak switch assembly is mounted in a switch guide groove at the bottom of the collection box via a second float at its bottom, allowing it to move vertically. When the cleaning assembly is in a depressed state, the lower part of the leak switch assembly is pressed against the bottom of the collection box under buoyancy, sealing the filter holes at the bottom of the collection box. When the cleaning assembly is in an lifted state, gravity causes the leak switch assembly to move downwards and separate from the bottom of the collection box, opening the filter holes at the bottom of the collection box.

2. The substation rainwater recovery device according to claim 1, which enables cleaning and overflow prevention, is characterized in that: The water storage tank is placed in the placement pit. The ends of the water inlet pipe, observation pipe, and external sludge discharge pipe that are furthest from the water storage tank all extend vertically upwards to the ground. An extension pipe is fixedly installed at the end of the overflow pipe, and the outer end of the extension pipe extends into the outside of the placement pit. Backfill soil is filled in the gaps between the water storage tank, observation pipe, water inlet pipe, external sludge discharge pipe, overflow pipe, and the inner wall of the placement pit to stabilize the recovery device in the placement pit.

3. The substation rainwater recovery device according to claim 1, which enables cleaning and overflow prevention, is characterized in that: The filter unit consists of a frame and a filter screen. The frame consists of a fixing ring at both ends and a plurality of side rods that are evenly distributed along the circumference and connect the fixing rings at both ends. The fixing ring at the inner end is fixedly connected to the outer side of the end cap. Filter screens are installed between adjacent side rods and inside the fixing ring at the outer end. A sliding strip is fixedly connected to the top of the upper side rod. A groove is provided on the inner wall of the top of the overflow pipe, and the sliding strip can be slidably inserted into the groove.

4. The substation rainwater recovery device according to claim 1, which enables cleaning and overflow prevention, is characterized in that: A mounting cavity is provided on each of the left and right sides of the inner end of the end cap. An arc-shaped rack guide groove is provided connecting the upper and lower parts of the two mounting cavities. A threaded rod is rotatably mounted in the middle of the mounting cavity. The rear part of the threaded rod extends through to the rear end of the end cap and is located on the outside of the filter unit. A threaded hole is provided on the side wall of the overflow pipe corresponding to the position of the threaded rod. The rear end of the threaded rod is threaded into the threaded hole. The threaded rod rotation drive mechanism includes a gear, an open-ring gear, a gear bracket, an extension rod, and the float. The gear is fixedly mounted on the inner end of the threaded rod located inside the mounting cavity. The open-ring gear is inserted from top to bottom in the rack guide groove. The open-ring gear meshes with a gear; the gear bracket is located on the outside of the end cap, opposite to the mounting cavity. The gear bracket consists of an extended fixed rod and a support rod hinged to the outer end of the fixed frame. The other end of the support rod is perpendicularly fixed to the outer end of the open-ring gear; the hinge center of the support rod coincides with the center of the open-ring gear, forming the rotation center of the open-ring gear; the upper end of the extension rod is extended and fixedly connected to the outer end of the open-ring gear, and the float is fixed to the lower end of the extension rod; a stop rod is fixedly connected below the bottom of the fixed rod, and the stop rod abuts against the support rod, so that the angle between the extension rod and the water surface is an acute angle in the initial state.

5. The substation rainwater recovery device according to claim 1, which enables cleaning and overflow prevention, is characterized in that: An inner groove is provided on the inner side wall of each corner of the mounting frame. A spring is installed in the inner groove. An extended support plate is fixedly connected to the upper part of the corner of the collection box. The extended support plate is slidably set in the inner groove. The upper and lower ends of the spring are fixedly connected to the bottom of the extended support plate and the bottom of the inner groove, respectively, so that the collection box is elastically supported in the mounting frame.

6. The substation rainwater recovery device according to claim 1, which enables cleaning and overflow prevention, is characterized in that: The mounting frame is positioned directly below the observation pipe. An L-shaped first float is fixedly connected to the outer side of each of the four corners of the mounting frame. A first through groove is provided in the middle of each side of the mounting frame, between two adjacent first floats, to enable communication between the inside and outside of the mounting frame. The first through groove is inclined with the outside higher than the inside, with the outer port being the water inlet and the inner port being the water outlet. A second through groove is provided in the upper middle of the side of the collection box to enable communication between the inside and outside of the collection box, and the second through groove is correspondingly provided to the first through groove.

7. The substation rainwater recovery device according to claim 1, which enables cleaning and overflow prevention, is characterized in that: The force-applying frame includes a lower cross plate, an upper cross plate, and a vertical connecting rod connecting the upper and lower cross plates. The outer ends of the four arms of the lower cross plate are fixedly connected to the upper middle part of the four sides of the collection box through a connecting frame. The outer ends of the four arms of the upper cross plate are each vertically fixed with a guide plate. The four guide plates fit against the four sides of the inner wall of the observation pipe, so that the upper part of the force-applying frame is slidably installed in the observation pipe in a way that is movable up and down and limited in the circumferential direction.

8. The substation rainwater harvesting device according to claim 7, which enables cleaning and overflow prevention, is characterized in that, A pull ring is fixed to the middle of the upper part of the upper cross plate, and a long hook is provided in conjunction with the pull ring. The upper end of the long hook is provided with a hanging ring, and the lower end of the long hook is provided with a bent hook. A wall hook for suspending the long hook is fixedly connected to the side wall near the upper end of the observation pipe near the corner.

9. The substation rainwater recovery device according to claim 7, which enables cleaning and overflow prevention, is characterized in that: The observation pipe is a transparent pipe, and the inner wall of the observation pipe is marked with a scale. The starting point of the scale is the lowest point of the observation pipe. When the first float contacts the bottom of the water tank, the guide plate is flush with the starting position of the scale.

10. The substation rainwater recovery device according to claim 1, which enables cleaning and overflow prevention, is characterized in that: The switch guide groove is rectangular in shape and consists of an upper groove and a lower groove, both of which are rectangular. Multiple water filter holes are provided on the outer periphery of the upper groove on the collection box, and a filter screen is installed in each water filter hole. The multiple water filter holes are connected vertically to the lower groove. The water leakage switch assembly consists of an anti-detachment plate, a middle connecting column, a water baffle plate, and a plurality of second floats fixed to the lower end of the water baffle plate, which are connected in sequence from top to bottom. The middle connecting column is a square column, and the middle connecting column and the upper groove of the switch guide groove form a guide insertion fit in the vertical direction. The anti-detachment plate is located above the bottom of the collection box, and the water baffle plate is located below the bottom of the collection box. The shape and size of the water baffle plate are consistent with the shape and size of the lower groove of the switch guide groove.

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