Lower water stop rubber structure and gate applying same
By using a one-piece molding design of rectangular rubber strips, arched rubber strips, and T-shaped rubber strips, the problems of cumbersome installation and easy detachment of existing lower water-stop rubber are solved, achieving boltless fixing and good deformation effect, thus ensuring the sealing performance of the gate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-03-31
AI Technical Summary
The existing bottom water-stop rubber is cumbersome to install in the gate, is prone to loosening, and is easily detached and deformed under the scouring of water flow, affecting the water-stopping performance and reliability.
The design incorporates rectangular, arched, and T-shaped rubber strips in a single molding process. These strips are fixed by insertion, and the hollow structure inside the arched rubber strip allows for deformation, ensuring a good seal.
It achieves boltless fixing and is not easily displaced under water flow, with good deformation effect, ensuring the gate plate fits and seals.
Smart Images

Figure CN224063371U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sealing strip structure for hydraulic gates, specifically to a lower water-stopping rubber structure and a gate using the same. Background Technology
[0002] In the application of gates in water conservancy projects, the lower water-stop rubber is a key water-stopping component, and its performance directly affects the water-stopping effect of the gate. Existing lower water-stop rubbers have several problems. For example, in terms of connection with gate profiles, traditional methods rely heavily on a large number of screws for fixing, making the installation process cumbersome. Furthermore, after long-term use, the screws are prone to loosening, resulting in an unstable connection between the water-stop rubber and the profile, affecting water-stopping performance. Simultaneously, regarding water-stopping effectiveness, some water-stop rubbers cannot adapt well to deformation under the pressure of the gate plate, failing to form a reliable seal and easily leading to leakage. In addition, some water-stop rubbers have unreasonable structural designs, making them easily washed away by water flow, reducing the reliability and durability of the water-stopping effect. Utility Model Content
[0003] To address the problems of easy detachment and poor deformation effect of the aforementioned lower water-stop rubber, this utility model provides a lower water-stop rubber structure and a gate using it.
[0004] The technical solution of this utility model is as follows:
[0005] A bottom water-stop rubber structure includes two rectangular rubber strips spaced apart in a horizontal plane perpendicular to the length direction, and an arched rubber strip is provided between the two rectangular rubber strips;
[0006] The two surfaces of the arched rubber strip, which are away from the rectangular rubber strip, are respectively arranged in an arc-shaped outward convex shape and horizontally;
[0007] The arched rubber strip has multiple cavities along the vertical direction, and the length direction of the cavities is flush with the length direction of the arched rubber strip.
[0008] The rectangular and arched adhesive strips are provided with T-shaped adhesive strips on the surfaces opposite to the outwardly convex arc shape;
[0009] The rectangular adhesive strip, arched adhesive strip, and T-shaped adhesive strip are integrally molded.
[0010] Based on functional requirements, the bottom water-stop rubber is divided into three parts, which can achieve the fixing effect without bolts and the deformation effect after being compressed. Even when facing water flow, there will be no displacement.
[0011] The specific structure of the cavity is as follows: the cavity includes an arched cavity and one or more rectangular cavities.
[0012] The aforementioned arched cavity is positioned such that it is located near the arc-shaped convex surface of the arched rubber strip.
[0013] To ensure the desired deformation effect, all the cavities are centrally located and have the same width.
[0014] To ensure the deformation effect under the action of the gate, the difference between the vertical height of the arched rubber strip and the height of the multiple cavities is less than the height of the rectangular rubber strip.
[0015] As a preferred embodiment, the ratio of the cavity width to the arched rubber strip width is greater than 1 / 2.
[0016] To avoid excessive deformation affecting the sealing effect, the ratio of the cavity width to the arched rubber strip width is less than 3 / 4.
[0017] For ease of installation, multiple T-shaped rubber strips are arranged symmetrically about the center of the arched rubber strip.
[0018] A gate using the aforementioned lower water-stop rubber, the gate including a bottom beam, side beams, a drive structure and a gate plate, the surface of the bottom beam near the gate plate is provided with a groove for the lower water-stop rubber, the lower water-stop rubber is inserted into the groove, and the height of the rectangular rubber strip is the same as the depth of the groove, the arc-shaped convex surface of the arched rubber strip is provided relative to the outer edge of the groove.
[0019] Unlike existing sealing structures, it does not require installation through structural components and exhibits good deformation performance after installation.
[0020] As a preferred embodiment, the gate plate corresponds to the arched rubber strip in position, and the width of the gate plate is not greater than the width of the arched rubber strip.
[0021] The beneficial effects of this utility model are as follows: This utility model is a bottom water-stop rubber structure and a gate using it. Unlike the existing method of fixing by bolts or other structural components, this device can achieve the effect of plug-in fixing by setting a T-shaped rubber strip with a groove. Moreover, the setting of the plug-in direction is not easily affected by water flow and thus does not easily cause displacement. Furthermore, the setting of the internal cavity of the arched rubber strip can enable the above structure to have a better deformation effect, ensuring the fit with the gate plate. Attached Figure Description
[0022] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.
[0023] In the attached diagram:
[0024] Figure 1 This is a schematic diagram of the structure of this utility model;
[0025] Figure 2 This is a front view structural diagram of the present invention;
[0026] Figure 3 This is a side view of the structure of this utility model;
[0027] Figure 4 This is a schematic diagram of the structure of the gate after the present invention is applied;
[0028] The components represented by the various reference numerals in the diagram are:
[0029] 1. Rectangular rubber strip; 2. Arched rubber strip; 3. T-shaped rubber strip; 4. Arched cavity; 5. Rectangular cavity; 6. Bottom beam; 7. Side beam; 8. Gate plate. Detailed Implementation
[0030] Example 1
[0031] like Figure 1-3 The illustrated bottom water-stop rubber structure includes two rectangular rubber strips 1 spaced apart in a horizontal plane perpendicular to their length, with an arched rubber strip 2 positioned between the two rectangular rubber strips 1. The sides of the rectangular rubber strips 1 and the sides of the arched rubber strip 2 are at the same height and are fitted together, achieving the desired effect. Figure 2 As shown.
[0032] Subsequently, the two surfaces of the arched rubber strip 2 away from the rectangular rubber strip 1 are respectively arranged in an arc-shaped outward convex shape and horizontally. The arc-shaped outward convex surface needs to contact the gate plate, so it needs to convex contact and facilitate deformation. The horizontally designed surface is designed to cooperate with the rectangular rubber strip 1. Through this arrangement, the lower surfaces of the rectangular rubber strip 1 and the arched rubber strip 2 can be made to be on the same plane, thus avoiding problems such as warping or non-fitting with the installation structure.
[0033] Furthermore, to achieve a better sealing effect by compressing and deforming the arched rubber strip 2, the arched rubber strip 2 has multiple cavities along the vertical direction. The length direction of the cavities is flush with the length direction of the arched rubber strip 2. Therefore, after the gate plate presses down on the arched rubber strip 2, its arc-shaped convex part will be deformed by pressure through the cavities. This method can achieve a better fit with the gate plate, and the amount of deformation is controllable. Without the cavity design, it relies entirely on the deformation of the material itself, which has a poor effect and a small amount of deformation.
[0034] Finally, for ease of installation, the rectangular rubber strip 1 and the arched rubber strip 2 are provided with a T-shaped rubber strip 3 on their surfaces away from the arc-shaped convex surface. The design of the T-shaped rubber strip 3 allows it to be inserted into the T-shaped groove. This mating effect enables a unidirectional insertion effect, thereby avoiding displacement caused by lateral or longitudinal forces. It ensures that only forces in the length direction can cause it to detach from the installation position.
[0035] Finally, and most importantly, the rectangular adhesive strip 1, the arched adhesive strip 2, and the T-shaped adhesive strip 3 are integrally molded. This design maximizes the sealing effect and is easy to process. If the three structures are glued or connected in other ways later, not only will the sealing effect not be guaranteed, but the structure may also be irregular.
[0036] The above structure achieves the desired effect. Based on functional requirements, the lower water-stop rubber is divided into three parts, each capable of boltless fixing and deformation under pressure, and will not shift even when exposed to water flow. Although divided into three parts, the integrated molding design ensures the overall sealing effect of the structure, and the shape is controllable. Through the cavity design, the deformation can be controlled to a certain extent by regulating the gate's descent height, thereby achieving the required sealing effect.
[0037] Meanwhile, a gate is also disclosed, using the aforementioned lower water-stop rubber. The gate includes a bottom beam 6, side beams 7, a drive structure, and a gate plate 8. The bottom beam 6 has a groove for the lower water-stop rubber near the gate plate 8. The lower water-stop rubber is inserted into the groove, and the height of the rectangular rubber strip 1 is the same as the depth of the groove. The arc-shaped convex surface of the arched rubber strip 2 extends outward relative to the groove, i.e., as shown... Figure 4 As shown, this method can meet the installation requirements without external connectors, and can achieve a sealing effect by using the outwardly convex arc-shaped surface in conjunction with the gate to achieve deformation and pressure-tight sealing.
[0038] This design differs from existing sealing structures, eliminating the need for structural components during installation and achieving good deformation performance after installation. It is important to note that the gate plate 8 corresponds to the arched rubber strip 2, and the width of the gate plate 8 is not greater than the width of the arched rubber strip 2. In other words, the gate plate should only contact and apply pressure to the arched rubber strip 2 as closely as possible, and the length of the cavity should be as similar as possible to the thickness of the gate plate to ensure that the deformation position is controllable.
[0039] Example 2
[0040] In addition to the above-disclosed structure, as a preferred embodiment, such as Figure 2 As shown, the specific structure of the cavity is as follows: the cavity includes an arched cavity 4 and one or more rectangular cavities 5. The arched cavity 4 is designed to cooperate with the arc-shaped outward convexity to achieve the desired deformation effect, while the rectangular cavity 5 is for overall deformation considerations.
[0041] Furthermore, in the above structure, the arched cavity 4 is positioned close to the arc-shaped convex surface of the arched rubber strip 2. It preferentially achieves the required pressure deformation effect through deformation, in conjunction with the arc-shaped convex surface. Moreover, during the continued downward pressing of the gate, it can ensure the overall deformation effect of the rectangular cavity 5.
[0042] It should also be noted that, in order to ensure the proper deformation effect, all the cavities are centrally located and have the same width to ensure proper fit with the gate and to prevent differences in cavity deformation.
[0043] Finally, since the rubber strip itself deforms during the downward pressing of the gate, and after deformation, it is necessary to ensure that the end of the gate is lower than the upper surface of the bottom beam to achieve the best sealing effect, that is, in order to ensure the deformation effect under the action of the gate 8, the difference between the vertical height of the arched rubber strip 2 and the height of the multiple cavities is less than the height of the rectangular rubber strip 1. In this way, after the cavity deformation under pressure almost disappears, the gate can be lower than the upper surface of the rectangular rubber strip 1, thus sinking and achieving the best sealing effect.
[0044] Subsequently, as a preferred embodiment, the ratio of the cavity width to the arched rubber strip 2 width is greater than 1 / 2. Furthermore, to avoid excessive deformation affecting the sealing effect, the ratio of the cavity width to the arched rubber strip 2 width is less than 3 / 4. This ensures that the material can deform under the pressure of the gate, but the degree of deformation will not be too high or too low.
[0045] Finally, for ease of installation, the multiple T-shaped adhesive strips 3 are arranged symmetrically about the center of the arched adhesive strip 2. Orientation does not need to be considered during installation.
Claims
1. A rubber structure for a toe dam, characterized by, The structure comprises two rectangular rubber strips (1) arranged in a horizontal plane and spaced apart in a direction perpendicular to the length direction, and an arc-shaped rubber strip (2) arranged between the two rectangular rubber strips (1); The arc-shaped rubber strip (2) is arranged in an arc-shaped convex manner away from the two surfaces of the rectangular rubber strip (1) and in a horizontal manner; The arc-shaped rubber strip (2) is provided with a plurality of cavities in a vertical direction, and the length direction of the cavities is flush with the length direction of the arc-shaped rubber strip (2); The rectangular rubber strip (1) and the arc-shaped rubber strip (2) are provided with T-shaped rubber strips (3) away from the arc-shaped convex surfaces; The rectangular rubber strip (1), the arc-shaped rubber strip (2) and the T-shaped rubber strip (3) are integrally formed.
2. A rubber structure for a lower water stop according to claim 1, wherein The cavities include an arc-shaped cavity (4) and one or more rectangular cavities (5).
3. A rubber structure for a lower water stop according to claim 2, wherein The arc-shaped cavity (4) is arranged close to the arc-shaped convex surface of the arc-shaped rubber strip (2).
4. A rubber structure for a lower water stop according to claim 1, wherein The plurality of cavities are arranged in the center and have the same width.
5. A rubber structure for a lower water stop according to claim 1, wherein The difference between the height value of the arc-shaped rubber strip (2) in the vertical direction and the height value of the plurality of cavities is less than the height value of the rectangular rubber strip (1).
6. A rubber structure for a lower water stop according to claim 4, wherein The ratio of the width value of the cavity to the width value of the arc-shaped rubber strip (2) is greater than 1 / 2.
7. A rubber structure for a lower water stop according to claim 6, wherein The ratio of the width value of the cavity to the width value of the arc-shaped rubber strip (2) is less than 3 / 4.
8. A rubber structure for a lower water stop according to claim 4, wherein The plurality of T-shaped rubber strips (3) are symmetrically arranged about the center of the arc-shaped rubber strip (2).
9. A gate characterized by, The structure is used in a lower rubber structure of a gate, the gate comprises a bottom beam (6), a side beam (7), a driving structure and a gate plate (8), the bottom beam (6) is provided with a groove close to the surface of the gate plate (8), the lower rubber is inserted into the groove, the height of the rectangular rubber strip (1) is the same as the depth of the groove, and the arc-shaped convex surface of the arc-shaped rubber strip (2) is arranged outward relative to the groove.
10. A gate according to claim 9, wherein The gate plate (8) corresponds to the position of the arc-shaped rubber strip (2), and the width of the gate plate (8) is not greater than the width of the arc-shaped rubber strip (2).