A stacked channel gate for water stop and liquid level control

Abstract

The utility model relates to water conservancy gate technical field discloses a kind of stop water control liquid level's stacked channel gate, including sluice slot frame, the vertical slide rail is equipped in sluice slot frame inside, multiple gate beam units are stacked on it, in adjacent gate beam unit, the beam top of lower unit is equipped with outer convex arc boss, the beam bottom of upper unit is equipped with curvature matching inner concave arc slot, excess embedded vulcanization forming ethylene-propylene rubber gasket is arranged between the outer convex arc boss and the inner concave arc slot, T type guide sliding block is welded in the both sides of gate beam unit, T type guide sliding block and vertical slide rail sliding fit and limit horizontal displacement. In the utility model, dynamic self-adaptive sealing is formed in sewage medium, corrosion resistance, compression deformation resistance and high resilience effectively resist solid particle scouring and chemical erosion in sewage, significantly improve joint sealing life.

Description

Technical Field

[0001] This utility model relates to the field of gate technology for water conservancy projects, and in particular to a stacked channel gate for stopping water and controlling liquid level. Background Technology

[0002] Hydraulic engineering gates are core facilities for regulating water levels, flow rates, and flood control. Common types include stacked beam gates, flat plate gates, and arc gates. They precisely control the flow cross-section through opening and closing operations and are used in reservoirs, rivers, and irrigation areas. In existing stacked beam gates, rigid connections between the beams are common. Each beam acts as an independent unit, stacked one on top of the other. The top surface of the lower part of the beam and the bottom surface of the upper part of the beam are in direct contact when stationary, attempting to achieve a seal.

[0003] Beam surfaces are typically designed as flat surfaces, which may barely maintain a certain level of sealing under low water pressure. However, under high water pressure, the water pressure exerts a tremendous force on the contact surface between the beams. Due to the simple planar contact and the lack of effective elastic deformation or special sealing structure design, water can easily breach this weak seal. Specifically, high water pressure causes water to seep into the gaps between the beams with considerable force, much like water flowing through tiny cracks. Over time, this leakage will gradually worsen, not only leading to water waste as large amounts of water are lost without effective containment, but also negatively impacting the surrounding environment. For example, leaked water can seep into the ground, affecting the quality of groundwater resources and the stability of surrounding soil, causing soil erosion, foundation subsidence, and other problems, posing potential hazards to surrounding buildings, roads, and other infrastructure.

[0004] Stacked beam gates have relatively high requirements for water quality, mainly in the following aspects. Impurities in the water, such as fine sand, stones, fibers, and suspended matter like silt, can easily enter the gaps between the stacked beams of the gate under the action of water flow. Once these impurities accumulate, they gradually occupy the gap space, compromising the sealing performance between the beams. For example, the originally tightly fitted gaps between the beams may become larger or uneven due to the accumulation of impurities, causing leakage when water flows through the gate. Specifically, when impurities accumulate to a certain extent, they can obstruct the lifting mechanism of the stacked beams, affecting the normal opening and closing operation of the gate. For example, impurities may get stuck in the guide rails or guiding devices of the stacked beams, preventing the beams from lifting smoothly or causing jamming during lifting, increasing the difficulty and risk of operation. Therefore, a stacked channel gate with water-stopping and liquid level control is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a stacked channel gate for water-stopping and liquid level control, aiming to improve the problem in the prior art where impurities get stuck in the guide rails or guide devices of the stacked beams, causing the stacked beams to be unable to rise and fall smoothly, or causing jamming during the rising and falling process, increasing the difficulty and risk of operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A stacked channel gate for water-stopping and liquid level control includes a gate slot frame. The inner side of the gate slot frame is provided with a vertical slide rail, on which multiple gate beam units are stacked. In adjacent gate beam units, the top of the beam of the lower unit is provided with an outwardly convex arc-shaped boss, and the bottom of the beam of the upper unit is provided with an inwardly concave arc-shaped groove with matching curvature. An interference-fitted vulcanized EPDM rubber gasket is provided between the outwardly convex arc-shaped boss and the inwardly concave arc-shaped groove. T-shaped guide sliders are welded on both sides of the gate beam unit. The T-shaped guide sliders slide with the vertical slide rail and limit horizontal displacement. The lower part of the gate beam unit is provided with a rotatable hook, and the upper part is provided with a pull rod that locks with the rotatable hook of the adjacent unit.

[0008] As a further description of the above technical solution:

[0009] The sliding surface of the vertical slide rail is coated with a hard wear-resistant layer, the thickness of which is greater than the expected wear amount under the maximum water pressure of the gate beam;

[0010] As a further description of the above technical solution:

[0011] The rotatable hook rotates around the pin shaft to lock the pull rod, and its rotation axis is perpendicular to the water flow direction;

[0012] As a further description of the above technical solution:

[0013] The continuous convex arcuate surface configuration of the convex arcuate boss accelerates the water flow through the joint and strips away particulate matter.

[0014] This utility model has the following beneficial effects:

[0015] In this invention, the interlocking structure of the concave arc groove on the upper part of the beam and the convex arc boss on the lower part of the beam, combined with the elastic deformation of the EPDM rubber gasket, forms a dynamic adaptive seal in the sewage medium. Its corrosion resistance, compression deformation resistance, and high resilience effectively resist the scouring and chemical erosion of solid particles in sewage, significantly improving the sealing life of the joint. The arc connection adopts a continuous curved surface design with an outward convex top on the lower part of the beam. When water flows through, there is no planar stagnation area in the joint area. Sediments such as mud and sand slide off along the arc surface under the action of fluid scouring, avoiding siltation and blockage, and ensuring the sealing reliability of the gate beam under long-term closed state. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a stacked channel gate for water-stopping and liquid level control proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the bottom structure of the beam of a stacked channel gate for water-stopping and liquid level control proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the vertical slide rail of a stacked channel gate for water-stopping and liquid level control proposed in this utility model.

[0019] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0020] Legend:

[0021] 1. Gate slot frame; 2. Beam top; 3. Beam bottom; 4. Concave arc groove; 5. Protruding arc boss; 6. EPDM rubber gasket; 7. T-shaped guide slider; 8. Vertical slide rail; 9. Rotatable hook; 10. Tie rod. Detailed Implementation

[0022] 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.

[0023] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a stacked channel gate for water-stopping and liquid level control, including a gate slot frame 1. A vertical slide rail 8 is provided on the inner side of the gate slot frame 1. The surface of the vertical slide rail 8 is coated with a hard wear-resistant layer with a thickness reserve greater than the wear limit generated by long-term use of the gate beam, ensuring the stability of the guiding system throughout its entire life cycle. A EPDM rubber gasket 6 is provided between the outwardly convex arc-shaped boss 5 and the inwardly concave arc-shaped groove 4. When the outwardly convex arc-shaped boss 5 is embedded in the inwardly concave arc-shaped groove 4, the EPDM rubber gasket 6 is subjected to vertical compression and generates radial expansion, while simultaneously filling the gap between the side wall of the groove and the outer arc surface of the boss, establishing a double dynamic sealing interface. A T-shaped guide slider 7 and the vertical slide rail 8 restrict horizontal displacement. The clearance fit design between the T-shaped guide slider 7 and the vertical slide rail 8 ensures smooth sliding of the gate beam unit in the vertical direction and eliminates lateral displacement caused by water pressure through mechanical constraints.

[0024] refer to Figure 1 , Figure 3 and Figure 4The rotatable hook 9 rotates around the pin shaft to lock the pull rod 10. The layout of the rotatable hook 9 with its rotation axis perpendicular to the water flow direction avoids accidental unlocking caused by water flow impact and improves the anti-interference capability of the locking mechanism. The convex arc-shaped boss 5 has a continuous convex arc surface configuration to accelerate the water flow. The arc surface guides the water flow to form an acceleration zone and uses fluid shearing to peel off mud and sand particles, avoiding the formation of sediment dead corners at the joints. The EPDM rubber gasket 6 is vulcanized and then interference-fitted with the concave arc groove 4. The interference allows the rubber material to still be tightly attached to the inner wall of the concave arc groove 4 under no pressure, forming a pre-sealing effect. The hard coating of the vertical slide rail 8 and the T-shaped guide slider 7 not only reduces the coefficient of friction, but its high hardness can also resist the abrasive wear caused by repeated raising and lowering of the gate beam.

[0025] When the rotatable hook 9 is unlocked from the pull rod 10, relative rotation occurs. This action causes a slight angle change between the convex arc-shaped boss 5 and the concave arc-shaped groove 4. The elastic force of the EPDM rubber gasket 6 is used to automatically remove the adhering material from the joint. The double sealing interface working mechanism is as follows: the first sealing surface achieves static sealing by the interference fit between the rubber and the concave arc-shaped groove 4; the second sealing surface forms dynamic sealing by the linear compression of the rubber by the convex arc-shaped boss 5. The water flow channel has no horizontal stagnation surface. The continuous arc surface of the convex arc-shaped boss 5 eliminates the flow field turbulence of traditional right-angle joints, so that the water flows smoothly through the joint.

[0026] Working principle: When the stacked beam gate is closed, each gate beam unit is vertically stacked along the hard chrome-plated vertical slide rail 8 via the T-shaped guide slider 7. The convex arc-shaped boss 5 on the top 2 of the beam is embedded in the concave arc-shaped groove 4 at the bottom 3 of the adjacent beam, compressing the EPDM rubber gasket 6 to form a double seal: the gasket and the concave arc-shaped groove 4 are in an interference fit to achieve a static seal, and the gasket and the arc surface of the convex arc-shaped boss 5 are in contact to form a dynamic seal. When the water flows through the continuous arc surface of the convex arc-shaped boss 5, it accelerates the generation of shear force, peeling off the silt and preventing siltation. When opening and closing, after the rotatable hook 9 and the pull rod 10 are unlocked, the convex arc-shaped boss 5 and the concave arc-shaped groove 4 rotate relative to each other during the lifting of the gate beam. The rebound force of the EPDM rubber gasket 6 automatically removes the attachments at the joint. The hard coating and clearance fit of the vertical slide rail 8 and the T-shaped guide slider 7 ensure the guiding accuracy under long-term use, and realize the reliability of precise water level control and repeated sealing.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A stacked channel gate for water-stopping and liquid level control, comprising a gate slot frame (1), characterized in that: The gate slot frame (1) is provided with a vertical slide rail (8) on the inner side, on which multiple gate beam units are stacked. In the adjacent gate beam units, the top (2) of the beam of the lower unit is provided with an outwardly convex arc-shaped boss (5), and the bottom (3) of the beam of the upper unit is provided with an inwardly concave arc-shaped groove (4) with matching curvature. An interference-fitted vulcanized EPDM rubber gasket (6) is provided between the outwardly convex arc-shaped boss (5) and the inwardly concave arc-shaped groove (4). T-shaped guide sliders (7) are welded on both sides of the gate beam unit. The T-shaped guide sliders (7) slide with the vertical slide rail (8) and restrict horizontal displacement. The lower part of the gate beam unit is provided with a rotatable hook (9), and the upper part is provided with a pull rod (10) that locks with the rotatable hook (9) of the adjacent unit.

2. The stacked channel gate for water-stopping and liquid level control according to claim 1, characterized in that: The sliding surface of the vertical slide rail (8) is coated with a hard wear-resistant layer, the thickness of which is greater than the expected wear amount under the maximum water pressure of the gate beam.

3. The stacked channel gate for water-stopping and liquid level control according to claim 1, characterized in that: The rotatable hook (9) rotates around the pin shaft to lock the pull rod (10), and its rotation axis is perpendicular to the direction of water flow.

4. The stacked channel gate for water-stopping and liquid level control according to claim 1, characterized in that: The continuous convex arc surface configuration of the convex arc boss (5) accelerates the water flow through the joint and strips off particulate matter.

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