Adjustable gravity-driven water distribution gate
By designing an adjustable gravity-driven water distribution gate, the weight of the gate and the expansion of the air bladder are controlled by a water pump and solenoid valve system, which solves the leakage problem caused by the accumulation of silt and debris, and achieves complete closure of the gate and accurate water distribution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN WATER-CONSERVANCY EXPLORATING & SURVEYING CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-10
AI Technical Summary
The existing gravity-driven water distribution gates cannot fully sink due to the accumulation of silt and debris, causing leakage and affecting the accuracy of water distribution.
An adjustable gravity-driven water distribution gate is adopted. The weight of the gate and the expansion of the air bladder are controlled by adjusting the components. The gate is precisely sealed by a water pump and solenoid valve system, which removes silt and impurities and ensures that the gate is completely closed.
It improves the closure effect of the gate, maintains the accuracy of water distribution, reduces leakage, and enhances the precision of water flow distribution.
Smart Images

Figure CN224478426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gate technology, specifically to an adjustable gravity-driven water distribution gate. Background Technology
[0002] Gravity-driven water distribution gates are water distribution devices that rely on gravity to open and close. In water conservancy projects and other fields, they are mainly used to regulate the distribution of water flow. When the gate is open, water can flow in a predetermined direction and flow rate to distribute water to different areas. When it is necessary to stop or reduce the water flow, gravity can be used to close the gate. This type of gate has a relatively simple structure and is often used in farmland irrigation channels, water distribution systems of small reservoirs, and other scenarios.
[0003] Existing gravity-driven water distribution gates often increase their overall weight by filling the internal water tank, hoping to achieve gate closure under gravity. However, in actual operation, the bottom of the gate is often obstructed by silt and debris, and the gate is also subjected to upward impact resistance from the water flow during descent. These two forces work together to counteract the gravity of the gate's descent, causing the gate to fail to fully descend and resulting in continuous leakage at the bottom of the valve, which affects the accuracy of water distribution. Utility Model Content
[0004] The purpose of this invention is to provide an adjustable gravity-driven water distribution gate to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] The adjustable gravity-driven water distribution gate includes a frame and a hollow gate plate slidably connected inside the frame, and further includes:
[0007] Adjustment components are located at the top of the frame;
[0008] A sealing assembly is provided at the bottom of the frame. The sealing assembly includes an airbag fixedly installed at the lower end of the frame. A water inlet pipe is symmetrically fixedly connected to the upper end of the airbag. A tube that is movably inserted into the water inlet pipe is fixedly embedded on the lower surface of the hollow gate.
[0009] Furthermore, a stepped ring is fixedly installed inside the insertion tube, a piston plate is movably embedded inside the stepped ring, a push rod is fixedly installed inside the piston plate, and filter screens are fixedly installed at both ends of the push rod and at one end of the water inlet pipe.
[0010] Preferably, a fixing frame is fixedly installed inside the insertion tube, the push rod slides through the fixing frame, a spring is movably sleeved on the outside of the push rod between the fixing frame and a filter screen, and a fixing plate fixedly installed at the lower end of the inside of the frame and fixedly connected to the water inlet pipe.
[0011] Furthermore, two vertical pipes are fixedly embedded in the upper surface of the hollow gate plate, and a solenoid valve is fixedly embedded in the upper surface of the hollow gate plate.
[0012] Preferably, the adjustment component includes:
[0013] The water pump is fixedly installed on the upper surface of the frame.
[0014] The No. 1 three-way pipe is fixedly connected to the inlet end of the water pump;
[0015] The No. 2 three-way pipe is fixedly connected to the outlet end of the water pump.
[0016] Preferably, one end of each of the No. 1 and No. 2 tee pipes is fixedly connected to a No. 2 solenoid valve, and the other end of each of the No. 1 and No. 2 tee pipes is fixedly connected to a No. 3 solenoid valve.
[0017] Preferably, one end of the second solenoid valve is fixedly connected to a flexible hose, one end of each of the two flexible hoses is fixedly connected to two vertical pipes, and a protective shell is fixedly installed on the upper surface of the frame outside the water pump.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. By lowering the hollow gate, the inlet pipe is inserted into the insertion tube, pushing the filter screen below, causing the push rod to push the piston plate upward, opening the stepped ring. At this time, the water pumped inside the hollow gate enters the air bladder, causing the air bladder to expand upward, pushing out the silt and impurities at the bottom of the frame. At the same time, when the hollow gate comes into contact with it, it deforms and fits the bottom of the hollow gate, reducing the possibility of the hollow gate not falling completely due to the accumulation of silt and debris at the bottom, improving the closing effect of the hollow gate, and maintaining the accuracy of water distribution.
[0020] 2. When water is pumped into the airbag, the No. 1 solenoid valve is closed, which increases the pressure inside the hollow gate. With the continuous water supply from the pump, water is injected into the airbag at a certain pressure, allowing the airbag to expand more smoothly and quickly. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the vertical cross-sectional structure of the hollow gate and frame part of this utility model;
[0023] Figure 3 This is a schematic diagram of the disassembled structure of the insertion tube and the water inlet tube in this utility model;
[0024] Figure 4 This is a schematic cross-sectional view of the connection between the insertion tube and the water inlet pipe in this utility model.
[0025] Figure 5 This is a schematic diagram of the adjustment component structure in this utility model.
[0026] In the diagram: 1. Frame; 101. Hollow gate; 102. Vertical pipe; 103. Solenoid valve No. 1; 104. Fixing plate; 2. Adjustment assembly; 201. Water pump; 202. T-pipe No. 1; 203. T-pipe No. 2; 204. Solenoid valve No. 2; 205. Solenoid valve No. 3; 206. Hose; 207. Protective shell; 3. Sealing assembly; 301. Airbag; 302. Inlet pipe; 303. Insert pipe; 304. Step ring; 305. Piston plate; 306. Push rod; 307. Fixing frame; 308. Spring; 309. Filter screen. 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 Figure 1-5 In this embodiment of the utility model, the adjustable gravity-driven water distribution gate includes a frame 1 and a hollow gate plate 101 slidably connected inside the frame 1. Two vertical pipes 102 are fixedly embedded in the upper surface of the hollow gate plate 101. It also includes an adjustment component 2, which is set at the upper end of the frame 1, and a sealing component 3, which is set at the bottom of the frame 1. The sealing component 3 includes an airbag 301 fixedly installed at the lower end inside the frame 1. The upper end of the airbag 301 is symmetrically connected to a water inlet pipe 302. The lower surface of the hollow gate plate 101 is fixedly embedded with a tube 303 that is movably inserted into the water inlet pipe 302.
[0029] Specifically, by adjusting the component 2 to pump water into and out of the hollow gate 101, the weight of the hollow gate 101 is controlled. When the hollow gate 101 moves down, the sealing component 3 seals the bottom of the frame 1 and the bottom of the hollow gate 101, so that the hollow gate 101 is completely closed. Example 1
[0030] like Figure 1 and Figure 5As shown, in this embodiment, the adjustment component 2 includes: a water pump 201 fixedly installed on the upper surface of the frame 1; a first tee pipe 202 fixedly connected to the water inlet of the water pump 201; a second tee pipe 203 fixedly connected to the water outlet of the water pump 201; a second solenoid valve 204 fixedly connected to one end of both the first tee pipe 202 and the second tee pipe 203; a third solenoid valve 205 fixedly connected to the other end of both the first tee pipe 202 and the second tee pipe 203; and a pipe connected to a water source installed at one end of each of the two third solenoid valves 205; a flexible hose 206 fixedly connected to one end of the second solenoid valve 204; and two vertical pipes 102 fixedly connected to one end of each of the two flexible hoses 206; and a protective shell 207 fixedly installed on the upper surface of the frame 1 outside the water pump 201, which protects the water pump 201 and reduces the impact of rainwater on the water pump 201.
[0031] In this embodiment, the water pump 201 operates, the third solenoid valve 205 at one end of the first three-way pipe 202 is closed, the second solenoid valve 204 is open, the third solenoid valve 205 at one end of the second three-way pipe 203 is open, and the second solenoid valve 204 is closed, pumping water into the hollow gate 101 through the water pump 201, increasing the weight of the hollow gate 101, causing it to move downward and close under the action of gravity. When the hollow gate 101 moves upward and opens, the third solenoid valve 205 at one end of the first three-way pipe 202 is open, and the second solenoid valve 204 is closed, the third solenoid valve 205 at one end of the second three-way pipe 203 is closed, and the second solenoid valve 204 is open, pumping water from inside the hollow gate 101, causing the water to be discharged from the hollow gate 101, reducing the weight of the hollow gate 101, and causing it to move upward under the buoyancy of the water.
[0032] like Figure 2-4 As shown, in this embodiment, a stepped ring 304 is fixedly installed inside the insertion tube 303. A piston plate 305 is movably embedded inside the stepped ring 304. A push rod 306 is fixedly installed inside the piston plate 305. Filter screens 309 are fixedly installed at both ends of the push rod 306 and at one end of the water inlet pipe 302. The filter screens 309 prevent impurities from entering the water inlet pipe 302 and the insertion tube 303, and also prevent impurities from entering the airbag 301. A fixing bracket 307 is fixedly installed inside the insertion tube 303, and the push rod 306 slides through the fixing bracket. A spring 308 is movably sleeved on the outside of the fixed frame 307 and the push rod 306 between the fixed frame 307 and a filter screen 309. The spring 308 pushes the filter screen 309 below. When the water inlet pipe 302 moves out of the insertion tube 303, the piston plate 305 can move down and engage with the stepped ring 304 to close the insertion tube 303. A fixing plate 104 is fixedly installed at the lower end of the frame 1 and is fixedly connected to the water inlet pipe 302. The fixing plate 104 fixes the angle of the water inlet pipe 302 so that it is vertical and inserted into the insertion tube 303.
[0033] In practice, when the hollow gate 101 moves down, the inlet pipe 302 is inserted into the insertion pipe 303, pushing the filter screen 309 below. At the same time, the push rod 306 pushes the piston plate 305 up, opening the stepped ring 304. At this time, the water inside the hollow gate 101 is pumped into the air bag 301, causing the air bag 301 to expand upward, pushing out the silt and impurities at the bottom of the frame 1. At the same time, when the hollow gate 101 comes into contact with it, it deforms and fits the bottom of the hollow gate 101, reducing the inability of the hollow gate 101 to fall completely due to the accumulation of silt and debris at the bottom, improving the closing effect of the hollow gate 101 and maintaining the accuracy of water distribution. Example 2
[0034] Based on Embodiment 1, in order to solve the problem that water inside the hollow gate 101 is not easy to enter the airbag 301 under its own gravity.
[0035] like Figure 1 As shown, in this embodiment, a solenoid valve 103 is fixedly embedded in the upper surface of the hollow gate 101.
[0036] In practice, when water is injected into and pumped out of the hollow gate 101, the first solenoid valve 103 is opened to keep the internal pressure consistent with the external pressure. When water is pumped into the airbag 301, the first solenoid valve 103 is closed to increase the internal pressure of the hollow gate 101. With the continuous water supply of the water pump 201, water is injected into the airbag 301 at a certain pressure, allowing the airbag 301 to expand more smoothly.
[0037] In this utility model, in order to facilitate the operator's control of the utility model, a PLC controller can be set up, and the first solenoid valve 103, the water pump 201, the second solenoid valve 204 and the third solenoid valve 205 are all electrically connected to the PLC controller. The PLC controller is existing technology and will not be described in detail here.
[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An adjustable gravity-driven water distribution gate, comprising a frame (1) and a hollow gate plate (101) slidably connected inside the frame (1), characterized in that it further comprises... include: Adjustment component (2) is set at the upper end of frame (1); A sealing assembly (3) is provided at the bottom of the frame (1). The sealing assembly (3) includes an airbag (301) fixedly installed at the lower end of the frame (1). The upper end of the airbag (301) is symmetrically connected to a water inlet pipe (302). The lower surface of the hollow gate (101) is fixedly embedded with a tube (303) that is movably inserted into the water inlet pipe (302).
2. The adjustable gravity-driven water distribution gate according to claim 1, characterized in that, A stepped ring (304) is fixedly installed inside the insertion tube (303). A piston plate (305) is movably embedded inside the stepped ring (304). A push rod (306) is fixedly installed inside the piston plate (305). Filter screens (309) are fixedly installed at both ends of the push rod (306) and at one end of the water inlet pipe (302).
3. The adjustable gravity-driven water distribution gate according to claim 2, characterized in that, A fixing frame (307) is fixedly installed inside the insertion tube (303). The push rod (306) slides through the fixing frame (307). A spring (308) is movably sleeved on the outside of the push rod (306) between the fixing frame (307) and a filter screen (309). A fixing plate (104) that is fixedly connected to the water inlet pipe (302) is fixedly installed at the lower end of the frame (1).
4. The adjustable gravity-driven water distribution gate according to claim 1, characterized in that, Two vertical pipes (102) are fixedly embedded in the upper surface of the hollow gate (101), and a solenoid valve (103) is fixedly embedded in the upper surface of the hollow gate (101).
5. The adjustable gravity-driven water distribution gate according to claim 4, characterized in that, The adjustment component (2) includes: A water pump (201) is fixedly installed on the upper surface of the frame (1); The No. 1 three-way pipe (202) is fixedly connected to the inlet end of the water pump (201); The No. 2 three-way pipe (203) is fixedly connected to the outlet end of the water pump (201).
6. The adjustable gravity-driven water distribution gate according to claim 5, characterized in that, One end of the No. 1 tee pipe (202) and the No. 2 tee pipe (203) are both fixedly connected to the No. 2 solenoid valve (204), and the other end of the No. 1 tee pipe (202) and the No. 2 tee pipe (203) are both fixedly connected to the No. 3 solenoid valve (205).
7. The adjustable gravity-driven water distribution gate according to claim 6, characterized in that, One end of the second solenoid valve (204) is fixedly connected to a hose (206), and one end of each of the two hoses (206) is fixedly connected to two vertical pipes (102). A protective shell (207) is fixedly installed on the upper surface of the frame (1) outside the water pump (201).