Water sealing member for water conservancy gate

Abstract

The application discloses a sealing water-stopping component for a gate of a hydraulic engineering, which comprises a pipe joint, a first sealing member and an outer sleeve pipe. The pipe joint comprises a pipe connecting section and a stopping section. The stopping section protrudes from the pipe connecting section in the radial direction and gradually decreases in thickness in the direction outward in the radial direction. The stopping section has a matching surface and a stopping surface. The stopping surface is provided with a sealing clamping groove. The pipe joint is symmetrically arranged in two and abuts against each other through the stopping surfaces. The first sealing member comprises a radial sealing part clamped between the two stopping sections. The radial sealing part is provided with a clamping protrusion and a sealing groove on both surfaces in the axial direction. The clamping protrusion is arranged in the corresponding sealing clamping groove. The sealing groove is arranged on the side inward in the radial direction of the clamping protrusion. The outer sleeve pipe is two and is respectively pressed against the matching surfaces of the two pipe joints. According to the sealing water-stopping component for the gate of the hydraulic engineering, the sealing of the pipe joint in multiple directions can be realized, and the sealing effect of the first sealing member is improved.

Description

Technical Field

[0001] This invention relates to the field of gate water-stopping technology, and in particular to a water-stopping component for gates in water conservancy projects. Background Technology

[0002] In water conservancy projects, gates are key equipment for controlling water flow, regulating water levels, and ensuring the safe operation of structures such as reservoirs, rivers, and canals. The reliability of their sealing performance directly affects project benefits, water resource utilization efficiency, and operational safety. Gate sealing and water-stopping components are mainly used to prevent high-pressure water leakage between the gate body and the gate frame (or embedded parts), and are the core components that ensure the gate's airtight function.

[0003] Currently, most common gate seals employ rubber sealing rings or waterstops. Traditional sealing methods typically rely on a single-shaped rubber strip (such as P-type or Ω-type) to achieve sealing through pre-compression to generate contact pressure. While this type of structure is effective under static or stable operating conditions, it reveals several shortcomings in long-term practical operation: traditional seals often rely on a single contact surface (line) for sealing. Under long-term water pressure, silt abrasion, material aging, and repeated opening and closing friction, the sealing contact surface is prone to local deformation, wear, or fatigue failure, leading to a drop in sealing pressure and the formation of leakage channels. Especially under the impact of high head, large flow, or water containing impurities, even minor leaks can gradually develop, affecting the normal operation of the project and causing water waste. Gates in water conservancy projects are often affected by water turbulence, waves, opening and closing force impacts, or pressure pulsations caused by water hammer during operation. Traditional sealing structures lack effective anti-loosening and vibration-resistant designs. Under continuous vibration, slight relative displacement or loosening may occur between the seal and the fixed component, resulting in loss of pre-tightening force, a sharp decline in sealing effect, and even serious failures such as seal detachment. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a sealing and water-stopping component for a hydraulic engineering gate, which can achieve sealing in multiple directions at the joint of two pipe sections, improve the sealing effect of the first sealing element, and enhance the reliability of the sealing and water-stopping component for the hydraulic engineering gate.

[0005] According to an embodiment of the present invention, a sealing and water-stopping component for a hydraulic engineering gate includes: a pipe joint, comprising a connecting section and a stop section, wherein the connecting section is used to connect to a hydraulic pipeline, and the stop section is connected to the end of the connecting section opposite to the hydraulic pipeline, the stop section protruding radially from the connecting section, the thickness of the stop section gradually decreasing in the radially outward direction, the surface of the stop section facing the connecting section being a mating surface, and the surface of the stop section opposite to the connecting section being a stop surface, the stop surface being provided with a sealing groove, and the pipe joint comprising two components. The pipe joints are symmetrically arranged and abut against each other through their stop surfaces; the first sealing element includes a radial sealing portion and a locking protrusion, the radial sealing portion is sandwiched between the two stop sections, the radial sealing portion has a locking protrusion and a sealing groove on both of its axial surfaces, the locking protrusion passes through the corresponding sealing groove, and the sealing groove is located on the radially inward side of the locking protrusion; the outer sleeve consists of two outer sleeves connected and fixed by fasteners, so as to press against the mating surfaces of the two pipe joints respectively, forcing the first sealing element to elastically deform.

[0006] According to the hydraulic engineering gate sealing and water-stopping component of the present invention, by setting mutually cooperating sealing grooves and locking protrusions, and setting a sealing groove on the radially inner side of the locking protrusion, the first sealing element can be reliably positioned between two pipe joints by the mutual limiting between the sealing grooves and the locking protrusions, reducing the risk of displacement or loosening of the first sealing element during long-term use, effectively ensuring the sealing reliability of the first sealing element, and simultaneously achieving axial sealing of the two pipe joints. Combined with the radial sealing part's radial sealing effect on the two pipe joints, sealing can be achieved in multiple directions for the two pipe joints, improving the sealing effect of the first sealing element. By setting a sealing groove on the radially inner side of the locking protrusion, the radial sealing effect of the radial sealing part can be improved, further improving the sealing effect of the first sealing element and enhancing the reliability of the hydraulic engineering gate sealing and water-stopping component.

[0007] According to some embodiments of the present invention, the radial sealing portion protrudes radially from the radial outer surface of the stop section, and the outer sleeve presses against the radial outer surface of the radial sealing portion.

[0008] According to some embodiments of the present invention, the first seal further includes an axial sealing portion, the axial sealing portion being circumferentially disposed on the radial outer periphery of one of the stop sections and connected to the radial sealing portion, the outer sleeve pressing against the radial outer surface of the axial sealing portion.

[0009] In some embodiments of the present invention, the axial sealing portion protrudes axially from the mating surface corresponding to the stop section.

[0010] In other embodiments of the present invention, the radial outer surface of the axial sealing portion is provided with raised ribs.

[0011] In some specific embodiments of the present invention, the rib is opposite to the stop surface of the corresponding stop segment in the radial direction of the stop segment.

[0012] According to some alternative embodiments of the present invention, the sealing grooves are multiple and arranged radially spaced along the radial sealing portion.

[0013] According to some optional embodiments of the present invention, a second sealing element is provided on the surface of the outer sleeve that abuts against the mating surface, the second sealing element being an elastic element.

[0014] According to some alternative embodiments of the present invention, the included angle between the two mating surfaces is greater than or equal to 30° and less than or equal to 50°.

[0015] According to some optional embodiments of the present invention, each of the outer sleeves includes a pressing part and a flange part, the pressing part abutting against the mating surface of the corresponding abutting section, the flange part being connected to one end of the pressing part facing the other outer sleeve, a sealing gasket being sandwiched between the two flange parts, and the two flange parts being connected and fixed by the fasteners.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a water-sealing and water-stopping component for a hydraulic engineering gate according to some embodiments of the present invention; Figure 2 for Figure 1 A first-view schematic diagram of the cross-section of the sealing and water-stopping component of a gate in a water conservancy project. Figure 3 for Figure 1 A second-view schematic diagram of the cross-section of the sealing and water-stopping component of a gate in a water conservancy project. Figure 4 for Figure 1 A partial structural schematic diagram of the cross-section of the sealing and water-stopping components of a gate in a water conservancy project.

[0018] Figure label: 1. First seal; 2. Locking protrusion; 3. Sealing groove; 4. Rib; 5. Pipe fitting; 6. Outer sleeve; 7. Second seal; 8. Flange. Detailed Implementation

[0019] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The sealing and water-stopping components for water conservancy gates according to embodiments of the present invention are described below with reference to the accompanying drawings.

[0021] Reference Figures 1-4 According to an embodiment of the present invention, a water-sealing and water-stopping component for a water conservancy project gate includes: a pipe joint 5, a first sealing element 1, and an outer sleeve 6. The pipe joint 5 includes a connecting section and a stop section. The connecting section is used to connect to the water conservancy pipeline. For example, the connecting section can be welded to the water conservancy pipeline to form a whole.

[0022] Reference Figures 2-4 The stop section is connected to the end of the pipe section away from the water conservancy pipeline. The stop section protrudes from the pipe section in its radial direction, and the thickness of the stop section gradually decreases in its radial outward direction. That is, in the radial outward direction, the axial dimension of the stop section gradually decreases.

[0023] Reference Figures 2-4 The surface of the stop section facing the pipe section is the mating surface, and the surface of the stop section away from the pipe section is the stop surface. A sealing groove is provided on the stop surface. There are two pipe joints 5, which are symmetrically arranged and abut against each other through their stop surfaces.

[0024] Reference Figures 2-4 The first sealing element 1 includes a radial sealing portion and a locking protrusion 2. The radial sealing portion is sandwiched between two stop sections. The radial sealing portion has locking protrusions 2 and sealing grooves 3 on both axial surfaces. The locking protrusions 2 pass through corresponding sealing grooves, and the sealing grooves 3 are located on the radially inward side of the locking protrusions 2. For example, the first sealing element 1 can be a rubber or silicone component. Specifically, the radial sealing portion and the locking protrusions 2 can be integrally injection molded.

[0025] Reference Figures 1-4 There are two outer sleeves 6, which are connected and fixed by fasteners, such as bolts. The two outer sleeves 6 press against the mating surfaces of the two pipe joints 5 respectively, and the two outer sleeves 6 push the two pipe joints 5 closer together to force the first sealing element 1 to elastically deform. That is, the surface of the outer sleeve 6 that contacts the mating surface is adapted to the mating surface.

[0026] For example, refer to Figures 1-4Each outer sleeve 6 includes a pressing part and a flange 8. The pressing part abuts against the mating surface of the corresponding stop section. The flange 8 is connected to the end of the pressing part facing the other outer sleeve 6. A sealing gasket is sandwiched between the two flanges 8. The two flanges 8 are connected and fixed by fasteners. This achieves the connection and fixation between the two outer sleeves 6.

[0027] According to the hydraulic engineering gate sealing and water-stopping component of the present invention, by setting mutually cooperating sealing grooves and locking protrusions 2, and setting a sealing groove 3 on the radially inner side of the locking protrusion 2, the first sealing element 1 can be reliably positioned between two pipe joints by mutual limiting between the sealing grooves and locking protrusions 2, reducing the risk of displacement or loosening of the first sealing element 1 during long-term use, effectively ensuring the sealing reliability of the first sealing element 1, and simultaneously achieving axial sealing of the two pipe joints. Combined with the radial sealing part's radial sealing effect on the two pipe joints, sealing can be achieved in multiple directions for the two pipe joints, improving the sealing effect of the first sealing element 1. By setting a sealing groove 3 on the radially inner side of the locking protrusion 2, the radial sealing effect of the radial sealing part can be improved, further improving the sealing effect of the first sealing element 1 and enhancing the reliability of the hydraulic engineering gate sealing and water-stopping component.

[0028] Reference Figures 2-4 According to some embodiments of the present invention, the radial sealing portion protrudes radially from the radial outer surface of the stop section, and the outer sleeve 6 presses against the radial outer surface of the radial sealing portion. In this way, the outer sleeve 6 can deform the radially protruding portion of the radial sealing portion from the stop section, sealing the two stop surfaces. At the same time, the deformed radial sealing portion is radially limited, reducing the risk of displacement of the first seal 1 and improving the reliability of the first seal 1.

[0029] Reference Figures 2-4 According to some embodiments of the present invention, the first seal 1 further includes an axial sealing portion, which is circumferentially disposed on the radial outer periphery of one of the stop sections, and the axial sealing portion is circumferentially connected to the radial sealing portion, that is, the axial sealing portion is provided only on one side of the radial sealing portion in the axial direction. The outer sleeve 6 presses against the radial outer surface of the axial sealing portion.

[0030] This mutual restraint between the axial sealing portion and its corresponding stop end achieves radial restraint on the first seal 1, ensuring the reliable positioning of the first seal 1. Simultaneously, the axial sealing portion, after being deformed under pressure, further seals the two stop surfaces, achieving multi-stage sealing of the first seal 1 and improving its reliability. Furthermore, by providing the axial sealing portion only on one side of the radial sealing portion, the outer sleeve 6, the stop section, and the axial sealing portion together define the deformable space, preventing the axial sealing portion from deforming and compressing the radial sealing portion, effectively ensuring the reliable positioning of the radial sealing portion and guaranteeing the sealing performance of the first seal 1.

[0031] Reference Figures 2-4 In some embodiments of the present invention, the axial sealing portion protrudes axially from the mating surface of its corresponding stop section. This allows the axial sealing portion to deform axially, enabling it to reliably seal the two stop surfaces and further improving the reliability of the first seal 1.

[0032] Reference Figure 2 and Figure 4 In other embodiments of the present invention, a rib 4 is provided on the radial outer surface of the axial sealing portion. This allows the outer sleeve 6 to compress and deform the axial sealing portion radially by pressing the rib 4, ensuring reliable radial deformation of the axial sealing portion and improving its sealing reliability. Simultaneously, when the outer sleeve 6 presses against the rib 4 and forces the axial sealing portion to deform, a groove structure can be formed on both sides of the rib 4 axially, improving the sealing effect between the axial sealing portion and the outer sleeve 6.

[0033] Reference Figure 4 In some specific embodiments of the present invention, the rib 4 is opposite to the stop surface of the corresponding stop section in the radial direction. This allows the axial sealing portion to better seal its corresponding stop surface.

[0034] Reference Figure 2 and Figure 3 According to some optional embodiments of the present invention, there are multiple sealing grooves 3, and the multiple sealing grooves 3 are arranged at radial intervals along the radial sealing portion. For example, there may be two, three, four or more sealing grooves 3. This can improve the sealing effect of the radial sealing portion.

[0035] It should be explained that, in this application, "multiple" refers to two or more.

[0036] Reference Figures 1-4According to some optional embodiments of the present invention, a second sealing element 7 is provided on the surface of the outer sleeve 6 and the mating surface of the stop section. The second sealing element 7 is an elastic element. For example, the second sealing element 7 can be a rubber element or a silicone element. Specifically, the second sealing element 7 can be provided on the surface of the pressing part facing the stop section and on the surface of the flange 8 facing the stop section. This can improve the sealing effect between the outer sleeve 6 and the pipe joint 5, so that the second sealing element 7 is provided between the outer sleeve 6 and the pipe joint 5, and between the two pipe joints 5, so that the second sealing element 7 plays a certain anti-vibration role, thereby improving the anti-vibration effect of the sealing and water-stopping components of the hydraulic engineering gate.

[0037] Reference Figures 2-4 According to some optional embodiments of the present invention, the included angle between the two mating surfaces is greater than or equal to 30° and less than or equal to 50°. For example, the included angle between the two mating surfaces can be 30°, 31°, 32°, 33°, 34°, 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, or 50°. This allows the two outer sleeves 6 to generate a radial tightening force on the pipe joint 5 when axially compressed.

[0038] In the description of this invention, it should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sealing and water-stopping component for a gate in a water conservancy project, characterized in that, include: The pipe joint (5) includes a connecting section and a stop section. The connecting section is used to connect to the water conservancy pipeline. The stop section is connected to the end of the connecting section away from the water conservancy pipeline. The stop section protrudes from the connecting section in its radial direction. The thickness of the stop section gradually decreases in its radial outward direction. The surface of the stop section facing the connecting section is a mating surface. The surface of the stop section away from the connecting section is a stop surface. A sealing groove is provided on the stop surface. There are two pipe joints (5). The two pipe joints (5) are symmetrically arranged and abut against each other through their stop surfaces. The first sealing element (1) includes a radial sealing portion and a locking protrusion (2). The radial sealing portion is sandwiched between two stop sections. The radial sealing portion has a locking protrusion (2) and a sealing groove (3) on both axial surfaces. The locking protrusion (2) passes through the corresponding sealing groove. The sealing groove (3) is located on the radially inward side of the locking protrusion (2). The outer sleeve (6) consists of two sleeves connected and fixed by fasteners, which press against the mating surfaces of the two pipe joints (5) respectively, forcing the first seal (1) to deform elastically.

2. The sealing and water-stopping component for a water conservancy project gate according to claim 1, characterized in that, The radial sealing portion protrudes radially from the radial outer surface of the stop section, and the outer sleeve (6) presses against the radial outer surface of the radial sealing portion.

3. The sealing and water-stopping component for a water conservancy project gate according to claim 1, characterized in that, The first seal (1) further includes an axial sealing portion, which is circumferentially disposed on the radial outer periphery of one of the stop sections and connected to the radial sealing portion, and the outer sleeve (6) presses against the radial outer surface of the axial sealing portion.

4. The water-sealing and water-stopping component for a hydraulic engineering gate according to claim 3, characterized in that, The axial sealing portion protrudes axially from the mating surface corresponding to the stop section.

5. The water-sealing and water-stopping component for a hydraulic engineering gate according to claim 3, characterized in that, The radial outer surface of the axial sealing part is provided with a raised rib (4).

6. The sealing and water-stopping component for a water conservancy project gate according to claim 5, characterized in that, In the radial direction of the stop section, the rib (4) is opposite to the stop surface of the corresponding stop section.

7. The sealing and water-stopping component for a gate in a water conservancy project according to any one of claims 1-6, characterized in that, The sealing grooves (3) are multiple and are arranged radially spaced along the radial sealing portion.

8. The sealing and water-stopping component for a water conservancy project gate according to any one of claims 1-6, characterized in that, The outer sleeve (6) is provided with a second sealing element (7) on the surface of the mating surface, and the second sealing element (7) is an elastic element.

9. The sealing and water-stopping component for a hydraulic engineering gate according to any one of claims 1-6, characterized in that, The included angle between the two mating surfaces is greater than or equal to 30° and less than or equal to 50°.

10. The sealing and water-stopping component for a hydraulic engineering gate according to any one of claims 1-6, characterized in that, Each of the outer sleeves (6) includes a pressing part and a flange (8) part. The pressing part is abutted against the mating surface of the corresponding stop section. The flange (8) part is connected to one end of the pressing part facing the other outer sleeve (6). A sealing gasket is sandwiched between the two flanges (8) parts. The two flanges (8) parts are connected and fixed by the fasteners.

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