Automatic water extractor for valve pit
By using a water level monitoring mechanism and interception components with a magnetic float and connecting plate structure, the problem of frequent start-stop of traditional water pumps is solved, achieving stability of pumping volume and protection of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN XINAO GAS
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional water pumps detect water levels using level gauges, leading to frequent pumping and stopping, which damages the monitoring equipment and limits the pumping capacity.
By employing a magnetic float and connecting plate structure, combined with a water level monitoring mechanism and interception components, the system enables automatic control of the water pump's start and stop, ensuring the stability and continuity of the pumping volume.
It enables automatic adjustment of pumping volume when the liquid level changes, avoiding frequent start-stop cycles, protecting the equipment, and maintaining stable water volume.
Smart Images

Figure CN224495372U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve well drainage technology, specifically to an automatic pump for valve wells. Background Technology
[0002] In some areas, the groundwater level is too high and valve wells are located underground. During the rainy season, deep water easily accumulates in the valve wells, requiring manual pumping after each rain. Prolonged immersion in water can cause corrosion and aging of ball valves and pipelines, increasing operational risks. Therefore, automatic pumps are used to replace traditional manual pumping. For example, a groundwater extraction device (approval number CN211257148U) is used to extract groundwater from wells. It includes: a support frame set on the ground corresponding to the wellhead; a lifting mechanism fixedly mounted on the support frame; a rope-like component connected at the upper end to the lifting mechanism and extending into the well; a submersible pump located inside the well and fixedly mounted at the lower end of the rope-like component, capable of lifting and lowering under the drive of the lifting mechanism; and a connecting hose connected at the lower end to the outlet of the submersible pump and extending upwards out of the wellhead for connection to an external well connector. The connecting hose is made of soft resin. Furthermore, it also includes: a level gauge for real-time measurement of the groundwater level in the well; and a control switch, connected in series between the submersible pump and the external power supply, and communicatively connected to the level gauge, used to activate the submersible pump and the external power supply when the groundwater level measured by the level gauge is higher than a predetermined level. However, this groundwater extraction device still has the following drawbacks in actual use:
[0003] Traditional water pumps mostly use level gauges to detect water levels. Pumping begins when the liquid level is above the gauge and stops when the liquid level is below the gauge. Therefore, the amount of water pumped each time is limited. As liquid continues to flow into the valve well, frequent pumping and stopping occur, which can easily damage the monitoring equipment. To address these issues, there is an urgent need for innovative designs based on existing water pumps. Utility Model Content
[0004] The purpose of this invention is to provide an automatic water pump for valve wells, which solves the problem mentioned in the background art. Traditional water pumps mostly use level gauges to detect the water level. Pumping starts when the liquid level is higher than the level gauge and stops when the liquid level is lower than the level gauge. Therefore, the amount of water pumped each time is limited. As liquid continues to flow into the valve well, frequent pumping and stopping will occur, which can easily damage the relevant monitoring equipment.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic water pump for valve wells, comprising a well body, a well cover on the top of the well body, and a water pump installed at the bottom of the well body, wherein the outlet end of the water pump is fixedly connected to one end of a water delivery pipe, and the other end of the water delivery pipe extends through the well cover to its outside.
[0006] It also includes: a sleeve, which is fitted onto the break at the upper end of the water supply pipe, wherein the water supply pipe sleeve is threaded;
[0007] An interception component is installed below the manhole cover. The interception component is used to intercept garbage in the water and is equipped with an alarm.
[0008] A water level monitoring mechanism is located in the middle of the well body, and a controller is installed inside the water level monitoring mechanism.
[0009] Preferably, the interception component includes a fixing plate fixed to the inner top surface of the manhole cover, and a connecting sleeve plate is connected to the bottom of the fixing plate, and both the connecting sleeve plate and the fixing plate are annular structures.
[0010] Preferably, the connecting sleeve and the fixing plate are elastically slidably connected, and an alarm is provided at the bottom edge of the fixing plate, and a filter screen is fixed at the bottom of the connecting sleeve to intercept impurities.
[0011] Preferably, the water level monitoring mechanism includes a support block fixed to the inner wall of the well body, and a first magnetic block is provided on the lower end face of one of the support blocks, and a controller is installed on the lower end face of the other support block.
[0012] Preferably, a float plate is sleeved on the outside of the water supply pipe, and a second magnetic block is provided at the edge of the float plate, and the second magnetic block and the first magnetic block are distributed accordingly.
[0013] Preferably, the lower end face of the float is fixedly connected to one end of the fixing rope, and the other end of the fixing rope is provided with a connecting plate, and the fixing rope is distributed at equal angles between the float and the connecting plate.
[0014] Preferably, the float plate and the connecting plate are spaced from the inner wall of the well body, and both the float plate and the connecting plate are slidably connected to the water supply pipe.
[0015] Compared with the prior art, the beneficial effects of this utility model are: the automatic water pump used in this valve well starts automatically pumping water when the liquid level reaches the required pumping position, and continues pumping even when the liquid level is below the pumping position, without stopping immediately. Therefore, it can ensure that the water volume inside the valve well remains in a relatively stable state. The specific details are as follows:
[0016] 1. As the amount of debris on the filter screen gradually increases, it can slide down the water supply pipe and cause the connecting sleeve plate to slide down the fixed plate. When the amount of debris on the filter screen reaches its limit, the alarm is located between the fixed plate and the connecting sleeve plate. Pressing the alarm will then trigger an alarm, facilitating the disposal of debris.
[0017] 2. When the liquid level in the well is level with the connecting plate, the connecting plate and the float plate can be lifted. When the liquid level in the well reaches the height required for pumping, the float plate will contact the controller to control the water pump to pump water. After pumping, when the liquid level is lower than the highest position, the float plate will still be attached to the support block due to the attraction of the magnetic block. As the liquid level drops, the connecting plate will drop, and the bent fixing rope will be straightened, so that the water pump can pump water continuously.
[0018] Furthermore, when the liquid level is low, if the connecting plate descends beyond the length of the fixed rope, the connecting plate will not be buoyed by the liquid level and will have a downward force, which can pull the float plate apart from the support block, stop pumping, and allow for continued monitoring of the liquid level and automatic pumping. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0021] Figure 3 This is a schematic diagram of the connecting plate structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the separation structure of the connecting plate and the floating plate of this utility model;
[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model;
[0024] Figure 6 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0025] Figure 7 This is a cross-sectional view of the filter screen of this utility model.
[0026] In the diagram: 1. Well body; 2. Well cover; 3. Water pump; 4. Water delivery pipe; 5. Casing; 6. Fixing plate; 7. Alarm; 8. Connecting sleeve plate; 9. Filter screen; 10. Support block; 11. First magnetic block; 12. Controller; 13. Float; 14. Second magnetic block; 15. Fixing rope; 16. Connecting plate. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1-7 The present invention provides the following technical solution:
[0029] Example 1: To address the problems existing in the prior art, this example provides the following technical solution: an automatic water pump for a valve well, comprising a well body 1, a well cover 2 on the top of the well body 1, and a water pump 3 installed at the bottom of the well body 1. The outlet end of the water pump 3 is fixedly connected to one end of a water delivery pipe 4, and the other end of the water delivery pipe 4 extends through the well cover 2 to its outside. It also includes: a sleeve 5, fitted onto the break at the upper end of the water delivery pipe 4, the sleeve 5 being threaded; an interception component, located below the well cover 2, used to intercept debris in the water, and an alarm 7 installed within the interception component; and a water level monitoring mechanism, located in the middle of the well body 1, containing a controller 12.
[0030] When existing accumulated water flows into the valve well, it carries some leaves and other debris. After the debris is intercepted, it's inconvenient to clean it up promptly, thus affecting the smooth flow of subsequent liquids. Figures 1-2 and Figures 6-7 As shown, the interception assembly includes a fixing plate 6 fixed to the inner top surface of the manhole cover 2, and a connecting sleeve 8 connected to the bottom of the fixing plate 6. Both the connecting sleeve 8 and the fixing plate 6 are annular structures. The connecting sleeve 8 and the fixing plate 6 are elastically slidably connected, and an alarm 7 is provided at the bottom edge of the fixing plate 6. A filter screen 9 is fixed to the bottom of the connecting sleeve 8. After rainwater and other liquids from the outside flow into the manhole body 1 through the manhole cover 2, they can be intercepted by the filter screen 9. As the amount of impurities on the filter screen 9 gradually increases, it can be driven to slide down the water pipe 4, and drive the connecting sleeve 8 to slide down the fixing plate 6. When the amount of garbage on the filter screen 9 reaches its limit, the alarm 7 is located between the fixing plate 6 and the connecting sleeve 8. Pressing the alarm 7 will trigger an alarm, which will facilitate the construction personnel to handle the garbage. Rotating the sleeve 5 to separate it from the break point of the water pipe 4 will separate the break point of the water pipe 4, making it convenient to open the manhole cover 2 to handle the filter screen 9.
[0031] Example 2: Most existing water pumps use level gauges to detect water levels. Pumping begins when the water level is above the gauge and stops when it falls below. Therefore, the amount of water pumped each time is limited. As liquid continuously flows into the valve well, frequent pumping and stopping occur, easily damaging the monitoring equipment. Therefore, this example uses the following technical solution: Figures 2-5 As shown, the water level monitoring mechanism includes a support block 10 fixed to the inner wall of the well body 1. A first magnetic block 11 is provided on the lower end face of one support block 10, and a controller 12 is installed on the lower end face of the other support block 10. A float plate 13 is sleeved on the outer side of the water pipe 4, and a second magnetic block 14 is provided at the edge of the float plate 13, with the second magnetic block 14 and the first magnetic block 11 correspondingly distributed. The lower end face of the float plate 13 is fixedly connected to one end of a fixing rope 15, and a connecting plate 16 is provided at the other end of the fixing rope 15. The fixing rope 15 is distributed at equal angles between the float plate 13 and the connecting plate 16. Space is left between the float plate 13 and the inner wall of the well body 1, and both the float plate 13 and the connecting plate 16 are slidably connected to the water pipe 4. After the liquid flows into the well body 1, it continuously accumulates. When the liquid level is level with the connecting plate 16, it can cause the connecting plate 16 and the float plate 13 to float. When the liquid level in the well body 1 reaches the required pumping height, the float 13 is lifted and comes into contact with the controller 12. Since the second magnetic block 14 and the first magnetic block 11 have opposite magnetic properties, they can attract each other. By pressing the controller 12, a signal is sent to control the water pump 3, which pumps the liquid in the well body 1 out through the water pipe 4. After pumping, the liquid level is lower than the highest position. Due to the attraction of the magnetic blocks, the float 13 remains attached to the support block 10. As the liquid level drops, the connecting plate 16 drops and the bent fixing rope 15 is straightened, enabling the water pump 3 to pump continuously. When the liquid level is low, if the height of the connecting plate 16 drops beyond the length of the fixing rope 15, the connecting plate 16 is not buoyed by the liquid level and has a downward force, which can pull the float 13 away from the support block 10, stopping the pumping, so that the liquid level can be monitored and pumped automatically again.
[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An automatic pump for valve wells, comprising a well body (1), a well cover (2) provided on the top of the well body (1), and a pump (3) installed at the bottom of the well body (1), wherein the outlet end of the pump (3) is fixedly connected to one end of a water delivery pipe (4), and the other end of the water delivery pipe (4) extends through the well cover (2) to the outside of it; Its features are, Also includes: The sleeve (5) is fitted onto the break at the upper end of the water supply pipe (4), and the sleeve (5) of the water supply pipe (4) is threaded. An interception component is provided below the manhole cover (2). The interception component is used to intercept garbage in the water and is equipped with an alarm (7). A water level monitoring mechanism is located in the middle of the well body (1), and a controller (12) is installed inside the water level monitoring mechanism.
2. The automatic pump for valve wells according to claim 1, characterized in that: The interception assembly includes a fixing plate (6) fixed to the inner top surface of the manhole cover (2), and a connecting sleeve plate (8) is connected to the bottom of the fixing plate (6), and both the connecting sleeve plate (8) and the fixing plate (6) are annular structures.
3. An automatic pump for valve wells according to claim 2, characterized in that: The connecting sleeve (8) and the fixing plate (6) are elastically slidably connected, and an alarm (7) is provided at the bottom edge of the fixing plate (6), and a filter screen (9) is fixed at the bottom of the connecting sleeve (8).
4. The automatic pump for valve wells according to claim 1, characterized in that: The water level monitoring mechanism includes a support block (10) fixed to the inner wall of the well body (1), and a first magnetic block (11) is provided on the lower end face of one of the support blocks (10), and a controller (12) is installed on the lower end face of the other support block (10).
5. An automatic pump for valve wells according to claim 4, characterized in that: The water pipe (4) is fitted with a float plate (13) on the outside, and a second magnetic block (14) is provided at the edge of the float plate (13), and the second magnetic block (14) and the first magnetic block (11) are distributed accordingly.
6. An automatic pump for valve wells according to claim 5, characterized in that: The lower end face of the float (13) is fixedly connected to one end of the fixing rope (15), and the other end of the fixing rope (15) is provided with a connecting plate (16), and the fixing rope (15) is distributed at equal angles between the float (13) and the connecting plate (16).
7. An automatic pumping device for valve wells according to claim 5, characterized in that: The float plate (13) and the connecting plate (16) have a space between them and the inner wall of the well body (1), and the float plate (13) and the connecting plate (16) are slidably connected to the water supply pipe (4).