A seepage-proof and water-stopping structure used in water conservancy and hydropower engineering

Abstract

The utility model relates to a kind of anti-seepage water-stop structures for water conservancy and hydropower engineering, belong to water conservancy and hydropower engineering technical field.The anti-seepage water-stop structure for water conservancy and hydropower engineering, including: door frame and the gate slidingly connected in door frame, drive mechanism is arranged between the gate and door frame;The anti-seepage mechanism includes the sealing block fixedly connected in the bottom of gate, the bottom of door frame is provided with sealing seat, sealing assembly is arranged between the sealing block and sealing seat;Sealing block and sealing seat are arranged between the bottom of gate and door frame in the device.When gate is closed, sealing block is inserted into sealing seat, and the water stored in sealing seat can be forcedly discharged from the drain port opened in bottom.The water flow discharged will wash away accumulated silt, thereby ensuring the smooth and clean of the contact surface between the bottom of sealing block and the inner bottom wall of sealing seat.This not only effectively reduces the abrasion of sealing contact surface by silt, but also greatly enhances the sealing fit when gate is closed.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower engineering technology, and in particular to a seepage prevention and water-stopping structure used in water conservancy and hydropower engineering. Background Technology

[0002] In hydraulic and hydropower projects, the seepage-proof and water-stopping structure of gates is a crucial system for ensuring tight water blockage after the gates are closed. Its core lies in the installation of a series of special seals around the gate perimeter. These seals are typically "P" or "Ω" type water seals made of flexible materials such as rubber or engineering plastics, which fit tightly against steel water-stop seats embedded in concrete, forming multiple lines of defense. This structure can effectively adapt to minor deformations and displacements of the gate, withstand enormous water pressure, and prevent high-pressure water from seeping through gaps, thereby ensuring the safe and stable operation of the gate and the flood control and water storage functions of the entire hydraulic structure. Traditional sluice gates typically improve their sealing performance when closed by placing flexible materials such as rubber between the gate and the frame. However, when the gate is open, water flows through, and this water may carry sediment. When the gate is closed, sediment may remain between the bottom of the gate and the frame. Prolonged high-pressure contact between the sediment and the seals at the bottom of the gate can damage the seals, thereby reducing the gate's sealing performance and causing leakage. Utility Model Content

[0003] Therefore, it is necessary to provide a seepage prevention and water-stopping structure for water conservancy and hydropower projects, which addresses the problem that the traditional method of increasing the sealing performance of gates by simply using flexible materials can easily lead to damage to the seals and cause leakage.

[0004] A seepage prevention and water-stopping structure for use in water conservancy and hydropower projects includes: a door frame and a gate slidably connected to the door frame, wherein a driving mechanism is provided between the gate and the door frame; The seepage prevention mechanism includes a sealing block fixedly connected to the bottom of the gate, a sealing seat is provided at the bottom of the gate frame, and a sealing component is provided between the sealing block and the sealing seat.

[0005] In one embodiment, the bottom end of the sealing block is beveled, and the sealing block is inserted into the interior of the sealing seat.

[0006] In one embodiment, the bottom of the sealing seat is provided with a drain outlet, which is located on the side of the sealing seat, and the inner wall of the sealing seat has two sealing grooves.

[0007] In one embodiment, an insert block is fixedly connected to the inner bottom wall of the sealing seat, and the insert block is used in conjunction with the sealing assembly.

[0008] In one embodiment, the sealing assembly includes sealing strips disposed on both sides inside the sealing block, the sealing strips having an isosceles trapezoidal cross-section.

[0009] In one embodiment, the sealing block has grooves on both sides, the sealing strip is slidably connected to the inner wall of the sealing block through the grooves, the insert is disposed between the two sealing strips, and the sealing strips cooperate with the sealing grooves.

[0010] In one embodiment, an adjusting block is fixedly connected to the top of the sealing strip, and multiple springs are fixedly connected between the adjusting block and the inner wall of the sealing block.

[0011] In one embodiment, a rubber strip is fixedly connected to the surface of the sealing block, and the rubber strip is disposed below the groove.

[0012] Beneficial effects 1. This device incorporates a sealing block and a sealing seat between the gate and the bottom of the gate frame. When the gate is closed, the sealing block inserts into the sealing seat, and with the assistance of a rubber strip, the water inside the sealing seat is forced out through a drain outlet at the bottom. The discharged water flow washes away accumulated silt, ensuring a smooth and clean contact surface between the bottom of the sealing block and the inner wall of the sealing seat. This not only effectively reduces wear on the sealing contact surface caused by silt but also greatly enhances the sealing fit when the gate is closed. 2. By setting a sealing component between the sealing block and the sealing seat, the sealing block can not only form a preliminary sealing barrier with the sealing seat by its own structure during the insertion of the sealing seat, but also generate continuous and uniform extrusion deformation between the contact surfaces through the interference fit of the precisely designed sealing strip and the sealing groove. This greatly fills the micro gaps and significantly improves the overall sealing performance between the sealing seat and the sealing block, so that it can maintain a long-lasting, reliable and leak-free sealing state under high water pressure environment. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation of the gate and gate frame of this utility model; Figure 3 This is a schematic diagram of the overall structure of the sealing block of this utility model; Figure 4This is a schematic diagram of the overall structure of the sealing assembly of this utility model; Figure 5 This is a schematic diagram of the installation of the sealing component and sealing block of this utility model; Figure 6 This is a cross-sectional view of the sealing seat of this utility model.

[0015] Figure label: 100. Gate; 200. Gate frame; 300. Drive mechanism; 400. Anti-seepage mechanism; 410. Sealing block; 420. Sealing assembly; 421. Sealing strip; 422. Adjusting block; 423. Slide groove; 424. Rubber strip; 430. Sealing seat; 431. Drain outlet; 432. Sealing groove; 433. Insert block. Detailed Implementation

[0016] 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.

[0017] The following is combined Figure 1 - Figure 6 This invention describes a seepage-proof and water-stopping structure for use in water conservancy and hydropower projects.

[0018] In one embodiment, a seepage prevention and water-stopping structure for water conservancy and hydropower projects includes: a door frame 200 and a gate 100 slidably connected to the door frame 200, and a driving mechanism 300 is provided between the gate 100 and the door frame 200. The seepage prevention mechanism 400 includes a sealing block 410 fixedly connected to the bottom of the gate 100, a sealing seat 430 provided at the bottom of the gate frame 200, and a sealing component 420 provided between the sealing block 410 and the sealing seat 430.

[0019] In this device, a slider is provided on the side of the gate 100, and grooves are provided on the inner walls of both sides of the gate frame 200 to cooperate with it. The gate 100 is slidably connected to the gate frame 200 through the cooperation of the slider and the groove. At the same time, since impurities such as mud and sand are usually located below the water flow, very little mud and sand will remain on the sides of the gate 100 and the gate frame 200. Furthermore, as the gate 100 moves downward, the mud and sand will be automatically discharged from the connection between the gate 100 and the side of the gate frame 200, without affecting the seal. The top of the drive mechanism 300 needs to be equipped with a drive motor for driving. Therefore, the drive mechanism 300 mainly consists of a drive motor, a coupling, a reducer, and... The gate 100 consists of a load-bearing nut, a thrust bearing, a lifting threaded rod, a gate frame 200, and a stroke control device. Its working principle is as follows: after the motor starts, it transmits power to the reducer via a coupling. After reduction and torque amplification, the load-bearing nut rotates. The helical transmission of the lifting threaded rod, which is precisely matched with the nut, converts the rotational motion of the nut into the linear lifting motion of the threaded rod, thereby driving the gate 100 connected to the lower end of the threaded rod to open or close. The thrust bearing bears the axial load generated by the weight of the gate 100 and transmits it to the gate frame 200. The stroke control device precisely controls the opening and closing positions of the gate 100 through limit switches to ensure safe and reliable operation.

[0020] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the sealing block 410 has a chamfered bottom edge and is inserted into the sealing seat 430. A drain outlet 431 is located at the bottom of the sealing seat 430, and is also located on the side of the sealing seat 430. Two sealing grooves 432 are formed on the inner wall of the sealing seat 430. An insert block 433 is fixedly connected to the inner bottom wall of the sealing seat 430, and the insert block 433 cooperates with the sealing assembly 420.

[0021] In this embodiment, the bottom of the sealing seat 430 matches the bottom shape of the sealing block 410 and is also set with a chamfer. Therefore, after the sealing block 410 is inserted into the sealing seat 430, the mud and sand will not remain in the dead corner of the water flow and cannot be discharged due to the chamfer setting at the bottom of the sealing seat 430. Due to the chamfer setting, when the water flows along the bottom of the sealing seat 430, it directly flushes the mud and sand out from the inner bottom wall of the sealing seat 430. The bottom of the insert 433 is supported by multiple connecting rods. The connecting rods are fixedly connected to the bottom of the sealing seat 430, so it will not affect the drainage. It should be noted that this device enhances the sealing effect by setting an anti-seepage mechanism 400 at the connection between the gate 100 and the bottom of the gate frame 200. The anti-seepage mechanism 400 is set inside the gate frame 200 and will not affect the opening and closing of the gate or the water flow effect.

[0022] like Figure 3 , Figure 4 and Figure 5 As shown, the sealing assembly 420 includes sealing strips 421 disposed on both sides inside the sealing block 410, with the cross-section of the sealing strips 421 being an isosceles trapezoid. Sliding grooves 423 are provided on both sides of the sealing block 410, through which the sealing strips 421 are slidably connected to the inner wall of the sealing block 410. An insert block 433 is disposed between two sealing strips 421, and the sealing strips 421 cooperate with the sealing grooves 432. An adjusting block 422 is fixedly connected to the top of the sealing strips 421, and multiple springs are fixedly connected between the adjusting block 422 and the inner wall of the sealing block 410. A rubber strip 424 is fixedly connected to the surface of the sealing block 410, and the rubber strip 424 is disposed below the sliding grooves 423.

[0023] In this embodiment, when the sealing block 410 is inserted into the sealing seat 430, the rubber strip 424 deforms and fills the gap between the sealing block 410 and the sealing seat 430. Under the action of the rubber strip 421, the outer side of the sealing strip 421 is always contracted inside the sealing block 410. After the sealing block 410 moves downward a certain distance, the insert 433 is inserted into the sealing block 410 and pushes the two sealing strips 421 outward along the space between them, so that the sealing strips 421 and the sealing groove 432 fit tightly together to complete the seal. When it is necessary to open the gate, the sealing block 410 moves upward and the sealing strips 421 move synchronously. The insert 433 is pulled out from between the sealing strips 421. At this time, the spring pulls the sealing strips 421 back into the sealing block 410 to complete the reset.

[0024] Working principle: When the gate 100 is closed, as the bottom of the gate 100 moves towards the bottom of the gate frame 200, the sealing block 410 will be inserted into the sealing seat 430. During this process, as the rubber strip 424 enters the sealing seat 430, the rubber strip 424 fully fills the gap between the sealing seat 430 and the sealing block 410, preventing water from continuing to enter the bottom of the sealing seat 430. At this time, the rubber strip 424 will discharge the water that was previously left at the bottom of the sealing seat 430. As the water flows, it will wash the mud and sand inside the sealing seat 430 out of the sealing seat 430 until the bottom of the sealing block 410 and the bottom of the sealing seat 430 are attached and tightly fitted under the action of gravity, thereby achieving the effect of preventing seepage and stopping water. At this time, the sealing strip 421 is simultaneously inserted into the sealing groove 432, and together with the sealing block 410 and the sealing seat 430, they form multiple seals, further enhancing the overall sealing performance of the device.

[0025] It should be noted that the gate 100, drive mechanism 300, gate frame 200 and rubber strip 424 mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the drive mechanism 300 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.

[0026] 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. A seepage-proof and water-stopping structure for use in water conservancy and hydropower engineering, characterized in that, include: A door frame (200) and a gate (100) slidably connected to the door frame (200), wherein a drive mechanism (300) is provided between the gate (100) and the door frame (200). The seepage prevention mechanism (400) includes a sealing block (410) fixedly connected to the bottom of the gate (100), a sealing seat (430) is provided at the bottom of the gate frame (200), and a sealing component (420) is provided between the sealing block (410) and the sealing seat (430).

2. The seepage prevention and water-stopping structure for water conservancy and hydropower projects according to claim 1, characterized in that, The bottom end of the sealing block (410) is set with a chamfer on one side, and the sealing block (410) is inserted into the interior of the sealing seat (430).

3. The seepage prevention and water-stopping structure for water conservancy and hydropower projects according to claim 1, characterized in that, The bottom of the sealing seat (430) is provided with a drain outlet (431), the drain outlet (431) is provided on the side of the sealing seat (430), and the inner wall of the sealing seat (430) has two sealing grooves (432).

4. The seepage prevention and water-stopping structure for water conservancy and hydropower projects according to claim 1, characterized in that, The inner bottom wall of the sealing seat (430) is fixedly connected to a plug (433), which is used in conjunction with the sealing assembly (420).

5. The seepage prevention and water-stopping structure for water conservancy and hydropower projects according to claim 4, characterized in that, The sealing assembly (420) includes sealing strips (421) disposed on both sides inside the sealing block (410), the cross-section of the sealing strips (421) being an isosceles trapezoid.

6. The seepage prevention and water-stopping structure for water conservancy and hydropower projects according to claim 5, characterized in that, The sealing block (410) has sliding grooves (423) on both sides. The sealing strip (421) is slidably connected to the inner wall of the sealing block (410) through the sliding grooves (423). The insert (433) is disposed between the two sealing strips (421). The sealing strip (421) is used in conjunction with the sealing groove (432).

7. The seepage prevention and water-stopping structure for water conservancy and hydropower projects according to claim 6, characterized in that, An adjusting block (422) is fixedly connected to the top of the sealing strip (421), and multiple springs are fixedly connected between the adjusting block (422) and the inner wall of the sealing block (410).

8. The seepage prevention and water-stopping structure for water conservancy and hydropower projects according to claim 6, characterized in that, A rubber strip (424) is fixedly connected to the surface of the sealing block (410), and the rubber strip (424) is located below the groove (423).

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