A flexible water interceptor device for water channels

Abstract

This utility model discloses a flexible water interceptor device for irrigation canals, used to cut off water flow in farmland irrigation at any time, achieving water retention within the canal and irrigation of the field. The device includes a long horizontal wooden beam, a short horizontal wooden beam, three bolts, and a flexible plate with a rounded beveled bottom after being cut. The three bolts clamp and fix the top of the flexible plate between the two wooden beams. In use, the bottom of the device is inserted into the canal at the location where water interception is needed, angled towards the water flow, until the long horizontal wooden beam is positioned on both sides of the canal. Under the impact of the water flow, the two sides and bottom surface of the flexible plate tightly adhere to the three sides of the inner wall of the canal, and the long horizontal wooden beam provides stable support to the two sides of the canal, quickly forming a temporary flexible water interception surface for water storage and irrigation. When water interception is no longer needed, the device can be pulled out from the top of the canal to restore water flow, and it can be transferred to other locations where water interception is needed for repeated use. This device is readily available, simple in principle, highly efficient, and portable, and can be widely promoted in farmland irrigation scenarios.

Description

Technical Field

[0001] This utility model belongs to the technical field of farmland irrigation water conservancy facilities, specifically relating to a flexible water interceptor device for temporary water interception and retention in irrigation canals, which helps farmland irrigation. Background Technology

[0002] In agricultural production, farmland irrigation relies on irrigation canals to transport water resources. However, depending on the irrigation schedule of different plots, it is necessary to frequently temporarily cut off the flow of water in the canals to achieve water conservation in local sections and precise irrigation. The current methods of temporary water interception commonly used in farmland irrigation canals have obvious shortcomings and cannot meet the needs of efficient and convenient irrigation.

[0003] Traditional methods often involve manually constructing earthen dams to intercept water: farmers need to take soil from the local area to build the dam, which is not only time-consuming and labor-intensive, but also has poor sealing properties and is prone to leakage due to water erosion, resulting in poor water retention. When dismantling the dam, the residual soil needs to be cleaned manually, and the remaining soil may block the water channel, affecting the subsequent water flow. At the same time, earthen dams cannot be reused, and each water interception requires reconstruction, which is extremely inefficient.

[0004] In some areas, sandbag stacking is used for water interception. While this provides a slight improvement in sealing compared to earthen dams, sandbags are labor-intensive to move, require precise alignment during stacking to minimize leakage, and become heavier after absorbing water, making dismantling and relocation inconvenient. They are also prone to damage after repeated use, resulting in high long-term operating costs. A few farmlands use small rigid gates, but these require pre-installed bases, leading to high installation costs and poor flexibility. They cannot be quickly moved to different water interception locations according to irrigation needs, and the rigid structure does not fit well against the inner wall of the irrigation canal, still causing leakage problems. Therefore, they are not suitable for flexible irrigation scenarios in small and medium-sized farmlands.

[0005] In summary, existing water interception methods in irrigation canals are inadequate in terms of ease of operation, reusability, water retention, and cost control. There is an urgent need for a temporary water interception device that is readily available, easy to operate, reusable, and well-sealed to address the practical pain points in farmland irrigation. Utility Model Content

[0006] This utility model patent relates to the field of farmland irrigation water conservancy facilities, and aims to solve the problems of low efficiency and poor sealing of existing water interception methods, and provide a flexible water interceptor device that can temporarily cut off the water flow in the water channel, realize water retention in the channel and precise irrigation.

[0007] The core structure of the device consists of a long horizontal timber, a short horizontal timber, three bolts, and a flexible plate. The flexible plate is cut with a rounded bottom corner and the top is clamped and fixed between the two timbers by three bolts to form a stable clamping structure. The length of the long horizontal timber matches the width of the water channel to be adapted, and the lower surface can fit tightly against the shoulder of the water channel. The flexible plate can be made of rubber or composite canvas, which has both tensile strength and bending ability. The plane size is slightly larger than the cross-section of the water channel to ensure sealing.

[0008] It is easy to operate: at the location where water needs to be intercepted, insert the bottom end of the device into the water channel at an angle towards the water flow until the long horizontal wooden beam is placed on both sides of the water channel; under the impact of the water flow, the two sides and bottom surface of the flexible plate automatically adhere to the three sides of the inner wall of the water channel, and with the support of the long horizontal wooden beam, a temporary flexible water interception surface is quickly formed to realize water storage and irrigation in the channel; when water interception is not needed, the device can be pulled out from the top of the water channel to restore the water flow, and it can be transferred to other locations for reuse.

[0009] The device has significant advantages: the materials are readily available and require no complex processing; no pre-set base is needed for operation, and installation and dismantling can be completed by a single person; the flexible structure has good sealing performance, preventing leakage; the long horizontal timber and bolts form a detachable structure, which facilitates the replacement and storage of flexible panels, and the long-term use cost is low. It effectively solves the pain points of traditional earth dams, sandbags, and rigid gates, and is suitable for small and medium-sized farmland irrigation scenarios, with high promotion value. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: Figure 1 This is a front view of the device of this utility model; Figure 2 This is a side view of the device of this utility model; Figure 3 This is a front view of the device of this utility model when it is cutting off water.

[0011] The main components in the figure include: long horizontal timber (1), short horizontal timber (2), three bolts (4) and a flexible plate (3) with rounded chamfers (31) at the bottom after cutting. It also involves a water channel (5) and a water level line (6) after the device is inserted into the water channel to store water.

[0012] Long horizontal timber (1): It has a long rectangular structure, in Figure 1 , Figure 3 In the front view, the device extends horizontally through the top of the device, and its length matches the width of the water channel (5) to be adapted, ensuring... Figure 3 The middle section is stably erected on both sides of the aqueduct (5); Figure 2 The side view shows that it has a certain thickness and a flat lower surface. When the water is cut off, it fits tightly with the upper surface of the shoulder of the water channel (5) to provide a supporting foundation for the whole device.

[0013] Short horizontal timber (2): also a long rectangular structure, in Figure 1 , Figure 3 In the front view, it is located directly in front of the long horizontal timber (1) at the same height, and its length is shorter than that of the long horizontal timber (1), covering only the top area of ​​the flexible board (3); Figure 2 In the side view, it is set parallel to the long horizontal wooden beam (1), and the distance between the two is adapted to the thickness of the top of the flexible plate (3), together forming the clamping frame of the flexible plate (3).

[0014] Three bolts (4): In Figure 1 In the front view, they are evenly spaced (along the length of the short horizontal timber (2)). Figure 2 The side view shows that its axis vertically penetrates the top of the long horizontal timber (1), the flexible board (3) and the short horizontal timber (2), and the three are tightly fixed by threaded connection to prevent the flexible board (3) from falling off the clamping frame under the impact of water flow.

[0015] Flexible plate (3) and bottom rounded chamfer (31): Figure 1 , Figure 3 In the front view, it has a vertical rectangular structure, with the top fixed to the long horizontal timber (1) and the short horizontal timber (2), and the bottom extending downwards; the material can be rubber or composite canvas, which has both strong in-plane tensile strength and out-of-plane bending ability, and its bottom edge is provided with a rounded chamfer (31). Figure 1 , Figure 3 The curved outline is clearly visible in the middle. This chamfer design reduces the resistance when the device is inserted into the water channel (5), while at the same time... Figure 3 When the water is cut off, it can fit more smoothly into the bottom corner of the water channel (5), avoiding sealing gaps caused by warping of the edges; the overall size of the flexible plate (3) is slightly larger than the cross-section of the water channel (5), ensuring Figure 3 When the water flows, its two sides can fit tightly against the inner walls of the water channel (5), and its bottom surface fits against the bottom of the water channel (5), forming a three-sided seal.

[0016] Water channel (5): only Figure 3 The device is presented as an application carrier. The shoulder sills on both sides of the top provide a support surface for the long horizontal wooden beam (1). The three sides of the inner wall (both sides and bottom) cooperate with the flexible plate (3) to form a sealed space.

[0017] Water level (6): only Figure 3 As can be seen in the front view of the water interception state, the flexible plate (3) located in the water channel (5) is on the water-facing side, which reflects the effect of water storage in the channel after the device intercepts the water, and indirectly reflects the sealing performance of the flexible plate (3). Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0019] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model. The utility model will now be described in detail with reference to the embodiments and accompanying drawings.

[0020] The specific implementation of this utility model of a flexible water interceptor for irrigation canals needs to be carried out in conjunction with the device structure and the actual scenario of farmland irrigation canals. The steps are as follows:

[0021] I. Preparations before implementation

[0022] Component compatibility check: Confirm that the length of the long horizontal timber (1) matches the width of the water channel (5) to be intercepted, ensuring that it can be stably erected on both sides of the water channel (5); check that the bottom rounded chamfer (31) of the flexible board (3) is undamaged, and that its planar dimensions are slightly larger than the cross-section of the water channel (5) (extending 2-5cm on both sides and at the bottom) to ensure a sealing effect; tighten the long horizontal timber (1), the short horizontal timber (2), and the top of the flexible board (3) with three bolts (4) to ensure that there is no looseness (refer to...). Figure 1 , Figure 2 (Assembly state).

[0023] Scene selection: Stop the water flow in the irrigation canal (5) section that needs to be intercepted for irrigation of farmland (such as temporarily slowing down the flow rate), remove gravel and weeds at the bottom of the canal (5) to avoid obstructing the insertion of the flexible plate (3) or affecting the sealing performance.

[0024] II. Installation and Water Cutoff Operation

[0025] Device insertion: The operator stands on one side of the water channel (5), holds both ends of the long horizontal wooden beam (1) with both hands, tilts the side of the flexible plate (3) at the bottom of the device with the rounded chamfer (31) towards the direction of water flow, and quickly inserts it into the water channel (5) in the oblique direction towards the water flow.

[0026] Positioning and sealing: Continue inserting until the lower surface of the long horizontal wooden beam (1) is completely in contact with the upper surface of the two shoulder sills of the water channel (5). After releasing both hands, the water flow impacts the flexible plate (3), causing its two sides to be tightly attached to the inner walls of the alloy channel (5) and its bottom surface to be attached to the bottom of the alloy channel (5), forming a three-sided seal; at this time, observe the rise of the water level line (6) in the water channel (5). Figure 3 (As can be seen), once it is confirmed that there is no obvious leakage, the water interception is completed, and irrigation of the fields can begin.

[0027] III. Dismantling and Reuse

[0028] Dismantling operation: When there is no need to cut off the water, the operator holds both ends of the long horizontal wooden beam (1) again and pulls the device vertically upward. The flexible plate (3) is separated from the inner wall of the water channel (5) and the water channel (5) resumes water flow.

[0029] Reuse: When moving to other locations where water needs to be cut off, only the “Preparation before implementation - installation and water cut-off operation” steps need to be repeated; if the flexible plate (3) is partially damaged, the three bolts (4) can be loosened to replace the new flexible plate (3), and it can be reassembled and used again.

[0030] Implementation Precautions: Before each use, check the sealing of the flexible plate (3) and the tightness of the bolts (4). If there is a protrusion at the bottom of the water channel (5), the insertion angle can be slightly adjusted. Use the flexibility of the flexible plate (3) to adapt to the terrain and ensure a tight fit without leakage. Example

[0031] A rice irrigation canal has a cross-sectional dimension of 40cm wide and 60cm deep. Figures 1-3 The attached diagram illustrates the device's adaptation design and core operating procedures.

[0032] Before implementation, component adaptation is completed. The length of the long horizontal wooden beam (1) is set to 60cm (each end exceeds the width of the water channel by 10cm) to ensure that it can fit perfectly on both sides of the water channel. The length of the short horizontal wooden beam (2) is 45cm. It is clamped to the top of the flexible board (3) together with the long horizontal wooden beam by 3 M8×50mm bolts (4). The flexible board is made of 3mm thick rubber material and is cut to a size of 45cm wide (5cm wider than the width of the water channel) and 68cm high (8cm deeper than the depth of the water channel). The bottom end is also equipped with a rounded chamfer (31) with a radius of 2cm. At the same time, the water channel (5) needs to be cleaned to remove gravel and weeds from the bottom of the channel to avoid affecting the subsequent bonding effect of the flexible board.

[0033] During installation and water interception, the operator holds both ends of the long horizontal wooden beam (1) with both hands and inserts the bottom end of the device into the water channel (5) at an angle towards the water flow until the lower surface of the long horizontal wooden beam (1) is completely in contact with the shoulder of the water channel (5). Under the impact of the water flow, the two sides and the bottom surface of the flexible plate (3) will naturally adhere to the inner wall of the water channel (5). At this time, observe the water level in the channel rise to 55cm (5cm from the top of the channel). After confirming that there is no obvious leakage, farmland irrigation can be carried out.

[0034] When water diversion is not required, hold the long horizontal wooden beam (1) and pull the device vertically upwards to restore water flow in the channel (5). Then, clean the mud and sand adhering to the surface of the flexible plate (3). The device can be directly transferred to other channel sections of the same size (40cm wide and 60cm deep) for reuse. If the flexible plate (3) is damaged, loosen the bolts (4) and replace it with a new flexible plate (3) to continue operation.

[0035] In terms of implementation results, the device takes about 1 minute to install, and a single water interception can meet the irrigation needs of 1 acre of farmland (interception time is 4 hours). The leakage is controlled at <0.5L / min, and it only takes 1 minute to transfer to the next irrigation canal. It can fully adapt to the temporary water interception needs of farmland irrigation canals of this size.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A flexible water channel stopper device, characterized by: Used for intercepting water flow in irrigation canals and conserving water within the canals for irrigation, the device includes a long horizontal timber, a short horizontal timber, three bolts, and a cut flexible board. The three bolts clamp and fix the top of the flexible board, with its bottom rounded corners, between the long and short horizontal timbers. In use, the bottom of the device is quickly inserted into the canal at an angle towards the water flow until the long horizontal timber is placed on both sides of the canal. Under the impact of the water flow, the two sides and bottom of the flexible board are tightly attached to the three sides of the inner wall of the canal. The long horizontal timber provides stable support to the two sides of the canal, thus forming a temporary flexible water-cutting surface.

2. The flexible watercourse stoplog device of claim 1, wherein: The device consists of a flexible plate with a rounded bottom corner, which is clamped between long and short horizontal wooden beams by three bolts. The rounded bottom corner ensures that the flexible plate fits the surface of the water channel when intercepting water.

3. The flexible ditch stopper device of claim 1, wherein: The flexible plate is made of rubber or composite canvas, which has both strong in-plane tensile strength and out-of-plane bending ability. Its in-plane dimensions are slightly larger than the cross-section of the water channel, and it can be used to cut off water by pressing it tightly against the surface of the water channel.

4. The flexible canal interceptor device of claim 1, wherein: The length of the long horizontal timber is matched with the width of the water channel to be adapted, and its lower surface is closely fitted with the upper surface of the water channel shoulder to provide stable support.

5. The flexible water interceptor device for water channels according to claim 1, characterized in that: When water needs to be cut off, simply insert the bottom of the device into the ditch at an angle towards the water flow direction; when water is no longer needed, pull the device out from the top of the ditch to restore water flow, and it can be reused in other locations.

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