A sealing device for a lock drainage gate

Abstract

This utility model discloses a sealing device for a lock drainage gate. The drainage gate has an arc-shaped water-stopping surface, and a gate frame is provided on the water-stopping surface. The sealing device includes an upper sealing seat and a lower sealing seat, which have the same arc as the water-stopping surface. The upper and lower sealing seats are set on the gate frame and include a horizontal part and a vertical part connected to both ends of the horizontal part. The horizontal part is installed on the upper or lower part of the gate frame, and the vertical part is installed on both sides of the gate frame. The vertical parts of the upper and lower sealing seats are connected to each other. The upper and lower sealing seats are provided with mounting grooves, and sealing elements are installed in the mounting grooves. The sealing device of this utility model adopts a split design, which can reduce manufacturing costs. The detachable sealing elements are installed in the mounting grooves of the sealing seats to ensure the sealing elements are secure to the maximum extent and are not easy to fall off.

Description

Technical Field

[0001] This utility model relates to the field of hydropower equipment maintenance equipment, and in particular to a sealing device for a lock drainage gate. Background Technology

[0002] The Xinzheng Lock has been in operation for 16 years, and the seals of the upstream and downstream drainage gates have experienced varying degrees of wear and aging, resulting in leakage after the gates are closed. This directly affects the drainage inspection and overhaul of the lock chamber and downstream miter gates. Analysis has revealed the following problems: Prolonged leakage of the drainage gates, coupled with the high upstream water level and significant pressure difference, easily leads to large-scale erosion or detachment of the seals, causing severe leakage and potentially forcing the lock to shut down. Furthermore, the water conveyance gates have aged, resulting in leaks that affect the lock's normal drainage operation and hinder maintenance of the downstream miter gates and lock chamber. Therefore, a reliable and durable drainage gate sealing device needs to be redesigned to address these issues. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by proposing a sealing device for a lock drainage gate, which adopts the following technical solution.

[0004] A sealing device for a lock drainage gate, wherein the drainage gate has an arc-shaped water-stopping surface, and a gate frame is provided on the water-stopping surface. The sealing device includes an upper sealing seat and a lower sealing seat, the upper and lower sealing seats having the same arc as the water-stopping surface. The upper and lower sealing seats are disposed on the gate frame, and each upper and lower sealing seat includes a horizontal portion and a vertical portion connected to both ends of the horizontal portion. The horizontal portion is installed on the upper or lower part of the gate frame, and the vertical portion is installed on both sides of the gate frame. The vertical portions of the upper and lower sealing seats are connected to each other. An installation groove is provided on the upper and lower sealing seats, and a sealing element is disposed within the installation groove.

[0005] Furthermore, the mounting groove is provided in the horizontal and vertical portions of the upper and lower sealing seats. The upper and lower sealing seats are made of hard plastic or stainless steel, and the sealing element is made of wear-resistant rubber. After the sealing element is installed in the mounting groove, the top surface of the sealing element should be at least 5 mm higher than the top side of the mounting groove.

[0006] Furthermore, the depth of the mounting groove on the horizontal portion is greater than the depth of the mounting groove on the vertical portion, and the thickness of the portion of the seal that mates with the horizontal portion is greater than the remaining portion.

[0007] Furthermore, the seal is generally n-shaped or U-shaped, and the seal is detachably installed in the mounting groove via a connector.

[0008] Furthermore, the vertical end of the upper sealing seat has a connecting pin, and the vertical part of the lower sealing seat has a connecting hole, with the connecting pin connected to the connecting hole.

[0009] Furthermore, the upper sealing seat and the lower sealing seat have an inner mounting plate, which is mounted on the gate frame by fasteners.

[0010] Furthermore, the inner mounting plate has a beveled structure.

[0011] Furthermore, the upper and lower sealing seats are provided with scraper members on their transverse portions, and the scraper members have steel bristles.

[0012] Furthermore, a side scraper is provided on the outer side of the vertical portion of the upper sealing seat and the lower sealing seat, and the side scraper is made of hard plastic material.

[0013] Furthermore, the external dimensions of the side scraper are larger than the lateral dimensions of the drainage gate.

[0014] The beneficial effects of this utility model are as follows: The sealing device of this utility model adopts a split design. The manufacturing cost can be reduced by connecting the upper and lower sealing seats. At the same time, the sealing element is installed in the mounting groove of the sealing seat by fasteners, which further increases the installation reliability of the sealing element and makes it less likely to fall off. In addition, an inner mounting plate is provided on the inner side of the sealing seat. The inner mounting plate is connected to the gate frame of the drainage gate by fasteners, which further enhances the stability of the sealing device. At the same time, scraper components are installed at the ends of the upper and lower sealing seats to remove the mud and sand attached to the water passage holes of the dam body, which further improves the sealing performance. Side scrapers are also added to the side of the sealing seat to remove mud and sand from the side of the water passage holes, which further improves the sealing performance of the sealing device. This sealing device improves the convenience of maintenance and enhances the sealing performance of the drainage gate of the lock.

[0015] Other technical effects of this utility model are further illustrated in the embodiments. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the sealing device of this utility model installed on a drainage gate;

[0018] Figure 2 This is a schematic diagram of the drainage gate structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the sealing device of this utility model. Figure 1 ;

[0020] Figure 4 This is a schematic diagram of the overall structure of the lower sealing seat of the sealing device of this utility model;

[0021] Figure 5 This is a schematic diagram of the overall structure of the upper sealing seat of the sealing device of this utility model;

[0022] Figure 6 This is a schematic diagram of the overall structure of the sealing device of this utility model. Figure 2

[0023] Figure 7 This is a schematic diagram of the sealing component structure of the sealing device of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 100-Drainage gate; 110-Gate frame; 200-Sealing device; 210-Upper sealing seat; 220-Lower sealing seat; 230-Mounting groove; 240-Sealing element; 250-Scraper element; 260-Side scraper; 270-Inner mounting plate. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Therefore, 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.

[0026] It should be noted that all connection relationships mentioned in this article do not refer to direct connection of components, but rather to the ability to form a better connection structure by adding or removing connecting accessories according to specific implementation conditions. Where there is no conflict, the embodiments and features and technical solutions in the embodiments of this utility model can be combined with each other. Furthermore, the terms "first," "second," "upper end," "lower end," "inner end," and "outer end," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0027] A sealing device for a lock drain gate, such as Figures 1-7As shown, the drainage gate 100 has an arc-shaped water-stopping surface, which mates with the water passage of the lock to seal the water passage. This water passage is used for water intake and drainage into the lock chamber. A gate frame 110 is provided on the water-stopping surface. The sealing device 200 includes an upper sealing seat 210 and a lower sealing seat 220. The upper sealing seat 210 and lower sealing seat 220 have the same curvature as the water-stopping surface, ensuring a tight fit between them and the drainage gate 100 for effective sealing. The sealing seat 220 is disposed on the gate frame 110. The upper sealing seat 210 and the lower sealing seat 220 each include a horizontal part and a vertical part connected to both ends of the horizontal part. That is, the upper sealing seat 210 and the lower sealing seat 220 are generally n-shaped. The horizontal part is installed on the upper or lower part of the gate frame 110, and the vertical part is installed on both sides of the gate frame 110. The vertical parts of the upper sealing seat 210 and the lower sealing seat 220 are connected to each other. The upper sealing seat 210 and the lower sealing seat 220 are provided with mounting grooves 230, and a sealing element 240 is disposed in the mounting grooves 230.

[0028] Furthermore, the mounting groove 230 is provided in the horizontal and vertical portions of the upper sealing seat 210 and the lower sealing seat 220. The upper sealing seat 210 and the lower sealing seat 220 are made of hard plastic or stainless steel to ensure the overall reliability of the sealing device 200. The sealing element 240 is made of wear-resistant rubber to ensure sealing performance. It is preferably made of nitrile rubber, neoprene rubber or EPDM P-type rubber. After the sealing element 240 is installed in the mounting groove 230, the top surface of the sealing element 240 should be at least 5 mm to 10 mm higher than the top side of the mounting groove 230.

[0029] Furthermore, the depth of the mounting groove 230 on the horizontal part is greater than the depth of the mounting groove 230 on the vertical part, and the thickness of the part of the seal 240 that mates with the horizontal part is greater than the rest. The seal 240 has a matching structure, which mainly forms a more stable connection between the upper and lower parts to ensure the sealing effect.

[0030] Furthermore, the seal 240 has an overall n-shape or U-shape (such as...). Figure 7 The sealing element 240 is detachably installed in the mounting groove 230 via a connector, preferably a 304 stainless steel internal hex screw.

[0031] Furthermore, the vertical end of the upper sealing seat 210 has a connecting pin, and the vertical part of the lower sealing seat 220 has a connecting hole. The connecting pin is connected to the connecting hole, and the connection is made by butt joint to cover the drainage gate 100. At the same time, the split design can reduce manufacturing costs and assembly difficulty.

[0032] Furthermore, the upper sealing seat 210 and the lower sealing seat 220 have an inner mounting plate 270, which is mounted on the gate frame 110 by fasteners. That is, the inner mounting plate 270 serves as a connection, while the part with the mounting groove 230 is mainly used to achieve sealing.

[0033] Furthermore, the inner mounting plate 270 has a sloped structure, which can reduce the impact of water flow on the entire sealing device and prevent the sealing device 200 from being washed away after long-term use.

[0034] Furthermore, the upper sealing seat 210 and the lower sealing seat 220 are provided with scraper 250 in their transverse portions. The scraper 250 has steel bristles. Specifically, it can have a long strip base plate on which steel wire bristle assembly is installed. The purpose of setting the steel bristles is that, since the drainage holes are underwater for a long time, mud and sand will accumulate at the edge of the holes, which will affect the sealing effect of the sealing device 200. By setting the steel bristles, the mud and sand can be cleaned away, thereby improving the sealing effect of the sealing element 240.

[0035] Furthermore, a side scraper 260 is provided on the outer side of the vertical portion of the upper sealing seat 210 and the lower sealing seat 220. The side scraper 260 is made of hard plastic material. Similarly, it is also for removing mud and sand from the side. However, since it is not a sealing surface, it is not necessary to use steel brush bristles for better cleaning.

[0036] Furthermore, the external dimension of the side scraper 260 is larger than the lateral dimension of the drainage gate 100. Since the dimension of the lock chamber installation position corresponding to the drainage gate 100 is larger than the width of the drainage gate 100, in order for the side scraper 260 to remove the mud and sand from the side wall, the lateral external dimension of the side scraper 260 needs to be larger than the drainage gate 100 to remove the mud and sand from the side wall of the drainage hole.

[0037] This utility model's sealing device adopts a split design. The upper and lower sealing seats are joined together, reducing manufacturing costs. The sealing element is installed in the mounting groove of the sealing seat using fasteners, preferably 304 stainless steel hexagonal screws, further increasing the installation reliability and preventing detachment. An inner mounting plate is provided on the inner side of the sealing seat, connected to the gate frame of the drainage gate by fasteners, further enhancing the stability of the sealing device. Additionally, scrapers are installed at the ends of the upper and lower sealing seats to remove mud and sand adhering to the dam's water passage holes, further improving sealing performance. Side scrapers are also added to the sides of the sealing seats to remove mud and sand from the sides of the water passage holes, further improving the sealing performance. This sealing device improves maintenance convenience and enhances the sealing performance of the lock drainage gate.

[0038] It should be noted that the above embodiments are intended to illustrate the technical solutions of this utility model and are exemplary embodiments of the claims of this utility model, rather than limiting the claims. Although the above embodiments have described this utility model in detail, 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 or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A seal for a lock drain gate, comprising: The drainage gate has an arc-shaped water-stopping surface, on which a gate frame is provided. The sealing device includes an upper sealing seat and a lower sealing seat, which have the same curvature as the water-stopping surface. The upper and lower sealing seats are disposed on the gate frame and include a horizontal portion and a vertical portion connected to both ends of the horizontal portion. The horizontal portion is installed on the upper or lower part of the gate frame, and the vertical portion is installed on both sides of the gate frame. The vertical portions of the upper and lower sealing seats are connected to each other. The upper and lower sealing seats are provided with mounting grooves, and sealing elements are disposed in the mounting grooves.

2. The lock drain gate seal apparatus of claim 1, wherein, The mounting groove is provided in the horizontal and vertical parts of the upper and lower sealing seats. The upper and lower sealing seats are made of hard plastic or stainless steel, and the sealing element is made of wear-resistant rubber. After the sealing element is installed in the mounting groove, the top surface of the sealing element should be at least 5 mm higher than the top of the side of the mounting groove.

3. The lock drain gate seal apparatus of claim 2, wherein, The depth of the mounting groove on the horizontal part is greater than the depth of the mounting groove on the vertical part, and the thickness of the part of the seal that mates with the horizontal part is greater than the rest.

4. The lock drain gate seal apparatus of claim 3, wherein, The seal is generally n-shaped or U-shaped, and the seal is detachably installed in the mounting groove via a connector.

5. The lock drain gate seal apparatus of claim 2, wherein, The upper sealing seat has a connecting pin at its vertical end, and the lower sealing seat has a connecting hole in its vertical part. The connecting pin is connected to the connecting hole.

6. The lock drain gate seal apparatus of claim 5, wherein, The upper and lower sealing seats have inner mounting plates, which are mounted on the gate frame by fasteners.

7. The lock drain gate seal apparatus of claim 6, wherein, The inner mounting plate has a sloping structure.

8. The sealing device for the lock drainage gate as described in claim 6, characterized in that, The upper and lower sealing seats are provided with scraper components on their transverse portions, and the scraper components have steel bristles.

9. The lock drain gate seal apparatus of claim 8, wherein, Side scrapers are provided on the outer side of the vertical portion of the upper and lower sealing seats, and the side scrapers are made of hard plastic material.

10. The lock drain gate seal apparatus of claim 9, wherein, The external dimensions of the side scraper are larger than the lateral dimensions of the drainage gate.

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