Automatic water pumping equipment for cable trench

Abstract

The utility model relates to cable channel accumulated water automatic pumping equipment belongs to cable channel accumulated water automatic pumping technical field. This cable channel accumulated water automatic pumping equipment, include: drain pipe and liquid level sensor, one end of drain pipe is equipped with sewage pump, prevent blocking mechanism, the prevent blocking mechanism includes the water inlet of intercommunication at drain pipe top, the top of water inlet is clamped and has the intercepting frame, the inner wall of water inlet is fixedly connected with a plurality of mounting blocks, through intercepting frame hindering cable trench larger sundries flow direction filter screen top, and further reduce the probability that filter screen is blocked, through filter screen and spring mutual cooperation, when the flow direction water flow in water inlet is big, under the action of water pressure, filter screen is pushed down and compresses spring, when the flow direction water flow in water inlet is small, the spring elasticity will push filter screen up, and further make filter screen produce small amplitude vibration, reduce the probability that filter screen is blocked, thereby guarantee the pumping effect of water pump to cable channel accumulated water.

Description

Technical Field

[0001] This utility model relates to the field of automatic drainage technology for water accumulation in cable trenches, and in particular to automatic drainage equipment for water accumulation in cable trenches. Background Technology

[0002] Prefabricated cable trenches used in urban underground substations are usually located deep underground. Due to high groundwater levels or the ease with which rainwater can backflow during the rainy season, water can easily accumulate inside these trenches. To prevent water accumulation from damaging the insulation of the cables, automatic drainage equipment such as level sensors, drainage pipes, and sewage pumps are usually installed inside the prefabricated cable trenches. This equipment automatically detects the water accumulation in the trenches and automatically starts drainage when the water level reaches a certain point, thus preventing damage to the cables.

[0003] Existing cable trench water drainage equipment typically installs a filter screen at the end of the pumping pipe to prevent the water pump from being blocked by large debris when pumping water from prefabricated cable trenches. This filter screen intercepts large debris from entering the pumping pipe. However, debris in the cable trench easily adheres to the surface of the filter screen, causing blockage and affecting the pumping efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide an automatic drainage device for cable trenches to address the problem that debris easily adheres to the surface of the filter screen in prefabricated cable trenches, causing blockage.

[0005] Includes: a drain pipe and a liquid level sensor, a sewage pump installed at one end of the drain pipe, and a drain pipe installed at the top of the sewage pump; an anti-clogging mechanism, the anti-clogging mechanism including a water inlet connected to the top of the drain pipe, an interceptor engaged at the top of the water inlet, several mounting blocks fixedly connected to the inner wall of the water inlet, a filter screen slidably connected to the inner wall of the mounting blocks, the top of the filter screen being recessed in a "V" shape, and a spring fixedly connected to the opposite end of the mounting block and the filter screen.

[0006] In one embodiment, brackets are fixedly connected to both sides of the inner wall of the water inlet hopper, and guide rods arranged in equal rows are fixedly connected to the top of the brackets. Through the cooperation of the brackets and guide rods, when the water pressure is high, the filter screen is pushed downwards, causing the filter holes on the screen to slide into the surface of the guide rods, thus clearing the filter holes and preventing filter screen blockage, ensuring effective drainage of water accumulated in the cable trench.

[0007] In one embodiment, an impact rod is attached to the top of the mounting block.

[0008] In one embodiment, a waterproof sleeve is fixedly connected to the opposite end of the mounting block and the filter screen, and the surface of the spring is located inside the waterproof sleeve. By protecting the spring surface with the waterproof sleeve, the probability of the spring being soaked in water is reduced, thereby reducing the probability of the spring rusting.

[0009] In one embodiment, a fixing frame is slidably connected to the inner wall of the water inlet hopper, and the surface of the fixing frame is slidably connected to the inner wall of the interceptor frame.

[0010] In one embodiment, an anti-slip block is slidably connected to the inner wall of the water inlet hopper, and the surface of the anti-slip block is engaged with the inner wall of the fixing frame. The anti-slip block and the fixing frame cooperate to separate the interceptor frame from the water inlet hopper, thereby facilitating the cleaning of impurities on the filter screen.

[0011] In one embodiment, the waterproof sleeve is a neoprene component, and the filter and spring are both stainless steel components.

[0012] In one embodiment, the impact bar is a polyurethane elastomer component.

[0013] Beneficial effects

[0014] 1. The interceptor frame blocks larger debris from flowing into the top of the filter screen in the cable trench, thereby reducing the probability of the filter screen being blocked. Through the cooperation of the filter screen and the spring, when the water flow into the water inlet is large, the water pressure pushes the filter screen down and compresses the spring. When the water flow into the water inlet is small, the elastic force of the spring will push the filter screen up, thereby causing the filter screen to vibrate slightly, reducing the probability of the filter screen being blocked, thus ensuring the pumping effect of the water pump on the water accumulated in the cable trench.

[0015] 2. The filter screen moves downward and impacts the surface of the impact rod, causing the filter screen to vibrate and loosen the impurities located in the filter holes, reducing the probability of the filter screen holes being blocked. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the drainage pipe and anti-clogging mechanism of this utility model;

[0019] Figure 3This is an exploded view of the water inlet bucket and filter screen of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0022] Figure label:

[0023] 100. Drain pipe; 200. Liquid level sensor; 300. Anti-clogging mechanism; 301. Water inlet hopper; 302. Mounting block; 303. Filter screen; 304. Interception frame; 305. Bracket; 306. Guide rod; 307. Spring; 308. Waterproof sleeve; 309. Impact rod; 310. Fixing frame; 311. Anti-slip block; 400. Sewage pump; 500. Pumping pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The following is combined with Figures 1-5 This invention describes an automatic drainage device for water accumulation in cable trenches.

[0026] In one embodiment, an automatic drainage device for cable trench water accumulation includes: a drain pipe 100 and a liquid level sensor 200. A sewage pump 400 is installed at one end of the drain pipe 100, and a pumping pipe 500 is installed at the top of the sewage pump 400. An anti-clogging mechanism 300 includes a water inlet 301 connected to the top of the drain pipe 100. An interceptor 304 is snapped onto the top of the water inlet 301. A plurality of mounting blocks 302 are fixedly connected to the inner wall of the water inlet 301. A filter screen 303 is slidably connected to the inner wall of the mounting blocks 302. The top of the filter screen 303 is recessed in a "V" shape. A spring 307 is fixedly connected to the opposite end of the mounting blocks 302 and the filter screen 303.

[0027] Both the interceptor frame 304 and the water inlet 301 are made of rigid polyvinyl chloride, which has strong corrosion resistance. This allows the interceptor frame 304 and the water inlet 301 to resist the erosion of various corrosive media that may exist in the cable trench. Even if they are in a humid environment that may contain corrosive components for a long time, they are not easily corroded or damaged.

[0028] The inner wall of the water inlet hopper 301 of the rigid PVC component is smooth, with low water flow resistance and is not prone to scaling, which can ensure smooth drainage and reduce the risk of blockage.

[0029] It should be noted that the automatic pumping equipment consists of a liquid level sensor 200, a drain pipe 100, an inlet hopper 301, a sewage pump 400, a pumping pipe 500, a control system, and an alarm system. The sewage pump 400 is a JYWQ series automatic stirring submersible sewage pump.

[0030] The control system is the core component of the automatic pumping equipment. It receives signals from the level sensor 200 and controls the start and stop of the sewage pump 400 according to a preset program. The control system can be implemented using a microcontroller, programmable logic controller (PLC), or similar technology.

[0031] Alarm system: When equipment malfunctions or water levels are abnormal, the alarm system will promptly issue audible and visual alarm signals to remind staff to take action.

[0032] The technology in question is a relatively common and well-known technology in this field and is not closely related to the technical problem of this application. Therefore, it has not been described in detail.

[0033] Install the liquid level sensor 200 in the corresponding position in the cable trench using bolts, connect the cable on the liquid level sensor 200 to the corresponding power supply area to continuously power the liquid level sensor 200, connect one end of the drain pipe 100 to one end of the sewage pump 400 through a flange connection, connect the top of the sewage pump 400 to the pumping pipe 500 through a flange connection, select a pumping pipe 500 of appropriate size, and install the other end of the pumping pipe 500 away from the sewage pump 400 to the corresponding discharge point.

[0034] In this embodiment, when it is necessary to drain the accumulated water from the prefabricated cable trench used in the urban underground substation, the liquid level sensor 200 is turned on so that the liquid level sensor 200 can monitor the water level in the prefabricated cable trench in real time. When the water level rises to the preset start water level, the sensor will transmit a signal to the control system. After receiving the signal, the control system will automatically start the sewage pump 400 so that the accumulated water in the prefabricated cable trench flows into the water inlet hopper 301. The interceptor 304 is used to intercept larger debris in the prefabricated cable trench. Large, medium and small impurities follow the water flow into the filter screen 303. The filter screen 303 is used to block large impurities from flowing into the drain pipe 100. Medium and small impurities are transported to the corresponding drainage area through the drain pipe 100, the sewage pump 400 and the pumping pipe 500.

[0035] When the level sensor 200 detects that the water level in the prefabricated cable trench has dropped to the preset stop level, the sensor sends a signal again, and the control system stops the operation of the sewage pump 400.

[0036] like Figures 3-4 As shown, brackets 305 are fixedly connected to both sides of the inner wall of the water inlet 301. Guide rods 306 are evenly distributed and fixedly connected to the top of the brackets 305. Impact rods 309 are connected to the top of the mounting block 302. Waterproof sleeves 308 are fixedly connected to the opposite ends of the mounting block 302 and the filter screen 303. The surface of the spring 307 is located inside the waterproof sleeve 308. The waterproof sleeve 308 is a neoprene rubber component. The filter screen 303 and the spring 307 are both stainless steel components. The impact rod 309 is a polyurethane elastomer component.

[0037] The 308 waterproof sleeve for neoprene components has good waterproof properties, elasticity, and corrosion resistance.

[0038] The stainless steel filter screen 303 and spring 307 are highly corrosion resistant, effectively resisting corrosion from water accumulation, humid air, and possible acid and alkali substances in the cable trench, ensuring the stable performance of the filter screen 303 during long-term use.

[0039] High strength: It has high hardness and tensile strength, and can withstand external forces such as water flow impact and debris impact. It is not easily deformed or damaged and can maintain the structural integrity of the 303 filter screen for a long time.

[0040] Easy to clean: The surface is smooth and does not easily adhere to debris, making it easy to clean and maintain regularly to ensure the filtration effect of filter 303.

[0041] The impact rod 309 of the polyurethane elastomer component has excellent high elasticity, strong corrosion resistance and good wear resistance. Even when subjected to frequent impacts and friction during long-term use, the surface of the impact rod 309 is not easily worn and has a long service life.

[0042] In this embodiment, when the water flow into the inlet hopper 301 is large, the water pressure will push the filter screen 303 downward within the mounting block 302 and compress the spring 307. The downward-moving filter screen 303 will hit the top of the impact rod 309, causing the filter screen 303 to vibrate and the filter holes to slide into the guide rod 306, thus clearing the filter holes. After the water flow has been discharged for a period of time, when the water flow into the inlet hopper 301 becomes smaller, the elastic force of the spring 307 will push the filter screen 303 upward, thereby causing the filter screen 303 to vibrate for a period of time. This will cause the impurities on the filter screen 303 to slide down to the center of the top of the filter screen 303, thereby reducing the probability of the filter holes on both sides of the top of the filter screen 303 being blocked, allowing the accumulated water to flow smoothly through the filter screen 303 into the drain pipe 100.

[0043] like Figures 3-4As shown, a fixing frame 310 is slidably connected to the inner wall of the water inlet 301, and the surface of the fixing frame 310 is slidably connected to the inner wall of the interceptor frame 304. An anti-slip block 311 is slidably connected to the inner wall of the water inlet 301, and the surface of the anti-slip block 311 is snapped into the inner wall of the fixing frame 310. The anti-slip block 311 is a polyurethane rubber component.

[0044] In this embodiment, when it is necessary to clean the top of the filter screen 303, the anti-slip block 311 is pulled upwards, so that the anti-slip block 311 moves away from the fixed frame 310, the fixed frame 310 is pulled away from the interceptor frame 304, and the interceptor frame 304 is pulled, so that the impurities retained on the top of the filter screen 303 can be cleaned.

[0045] Working principle: The sewage pump 400 is automatically started, causing the accumulated water in the prefabricated cable trench to flow into the inlet hopper 301. The interceptor 304 is used to intercept larger debris in the prefabricated cable trench. Large, medium, and small impurities follow the water flow to the filter screen 303. The filter screen 303 is used to block large impurities from flowing into the drain pipe 100. When the water flow into the inlet hopper 301 is large, the water pressure will push the filter screen 303 down in the mounting block 302 and squeeze the spring 307. The downward-moving filter screen 303 will hit the impact rod 30. 9. The top of the filter screen 303 is vibrated, causing the filter holes to slide into the guide rod 306, thus clearing the filter holes. After the water flow has been discharged for a period of time, the water flow into the inlet hopper 301 decreases, and the elastic force of the spring 307 pushes the filter screen 303 upward, which in turn causes the filter screen 303 to vibrate for a period of time, causing the impurities on the filter screen 303 to slide down to the center of the top of the filter screen 303, so that the accumulated water can flow smoothly through the filter screen 303 into the drain pipe 100, and then be transported to the corresponding drainage area by the sewage pump 400 and the water suction pipe 500.

[0046] It should be noted that the drain pipe 100, liquid level sensor 200, water inlet hopper 301, sewage pump 400, water pumping pipe 500 and spring 307 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the liquid level sensor 200 and sewage pump 400 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0047] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic drainage system for water accumulation in cable trenches, characterized in that, include: The drain pipe (100) and the liquid level sensor (200) are provided. A sewage pump (400) is installed at one end of the drain pipe (100), and a pumping pipe (500) is installed at the top of the sewage pump (400). An anti-clogging mechanism (300) includes a water inlet (301) connected to the top of a drain pipe (100). An interceptor (304) is snapped onto the top of the water inlet (301). Several mounting blocks (302) are fixedly connected to the inner wall of the water inlet (301). A filter screen (303) is slidably connected to the inner wall of the mounting block (302). The top of the filter screen (303) is recessed in a "V" shape. A spring (307) is fixedly connected to the opposite end of the mounting block (302) and the filter screen (303).

2. The automatic drainage device for cable trench water accumulation according to claim 1, characterized in that, The water inlet hopper (301) has brackets (305) fixedly connected to both sides of its inner wall, and guide rods (306) are fixedly connected to the top of the brackets (305) in equal rows.

3. The automatic drainage device for cable trench water accumulation according to claim 1, characterized in that, An impact rod (309) is connected to the top of the mounting block (302).

4. The automatic drainage device for cable trench water accumulation according to claim 1, characterized in that, A waterproof sleeve (308) is fixedly connected to the opposite end of the mounting block (302) and the filter screen (303), and the surface of the spring (307) is located inside the waterproof sleeve (308).

5. The automatic drainage device for cable trench water accumulation according to claim 1, characterized in that, The inner wall of the water inlet (301) is slidably connected to a fixing frame (310), and the surface of the fixing frame (310) is slidably connected to the inner wall of the interceptor frame (304).

6. The automatic drainage device for cable trench water accumulation according to claim 5, characterized in that, The inner wall of the water inlet hopper (301) is slidably connected to an anti-slip block (311), and the surface of the anti-slip block (311) is engaged with the inner wall of the fixing frame (310).

7. The automatic drainage device for cable trench water accumulation according to claim 4, characterized in that, The waterproof sleeve (308) is a neoprene rubber component, and the filter (303) and spring (307) are both stainless steel components.

8. The automatic drainage device for cable trench water accumulation according to claim 3, characterized in that, The impact rod (309) is a polyurethane elastomer component.

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