Arc-shaped gate hinge sealing structure convenient for maintenance

CN224918412UActive Publication Date: 2026-10-30中电华创(苏州)电力技术研究有限公司
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Patent Information

Application Number
CN202522521848.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-10-30
Estimated Expiration
2035-11-27

AI Technical Summary

Technical Problem

[0006]本实用新型的目的是解决现有技术中存在密封结构检修不便,密封效果无法调节的缺点,而提出的一种便于检修的弧形闸门支铰密封结构

Benefits of technology

[0023]1、通过转动密封帽,可以带动密封帽脱离支撑筒,露出挤压圈和密封圈进行维护,防泥盖通过转动,也能露出金属圈和密封块;

✦ Generated by Eureka AI based on patent content.

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    Figure CN224918412U_ABST
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Abstract

The utility model provides a kind of arc gate branch hinge sealing structure convenient for overhaul, it includes mounting plate, the connecting seat being welded in the both sides of mounting plate top, hinged axle and the shaft sleeve being arranged in the both ends of hinged axle surface, the arc gate branch hinge sealing structure convenient for overhaul further includes: support cylinder, support cylinder is equipped with two, support cylinder is welded in the top of connecting seat, shaft sleeve is set in the middle end inside support cylinder;Sealing assembly, sealing assembly is equipped with two, sealing assembly includes sealing cap, extruding ring and sealing ring, sealing cap is bolted with support cylinder, in the utility model, by the setting of sealing cap and mud cover, maintenance personnel can open support cylinder more easily, expose the sealing ring and sealing block inside support cylinder, so that maintenance personnel can maintain the sealing structure inside support cylinder, so without disassembling hinged axle and shaft sleeve and other structures, facilitate routine maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of gate technology, and in particular to an arc-shaped gate hinge sealing structure that is easy to maintain. Background Technology

[0002] The hinge of an arc-shaped gate is a key supporting component of the arc-shaped gate in hydraulic engineering, and its sealing structure directly affects the gate's water-stopping effect and service life. Related technology discloses an underwater sealing device for a gate hinge support spherical bearing and a gate hinge itself.

[0003] However, due to structural defects, the above technical solution still has the following problems:

[0004] 1. After the sealing structure of the arc gate hinge is installed in the arc gate hinge, users need to disassemble the arc gate hinge with great effort to maintain it, which is very inconvenient.

[0005] 2. Existing common sealing structures have a fixed sealing effect, which cannot be adjusted by the user. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as inconvenient maintenance of sealing structures and inability to adjust sealing performance, and to propose an arc-shaped gate hinge sealing structure that is easy to maintain.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An easily maintainable arc-shaped gate hinge sealing structure includes: a mounting plate; two connecting seats disposed opposite each other on the mounting plate; a support cylinder disposed on the top of each connecting seat; a hinge shaft inserted into each support cylinder; a bushing sleeve fitted onto each hinge shaft; a sealing cap bolted to the end of each support cylinder facing the other support cylinder; a sealing ring disposed between the bushing sleeve and the sealing cap and tightly fitted to the bushing sleeve; a compression ring disposed between the sealing ring and the sealing cap; a mudproof cover threadedly connected to the end of each support cylinder facing away from the other support cylinder; a sealing block disposed between the bushing sleeve and the mudproof cover; and a compression mechanism connected to the sealing block.

[0009] With the addition of sealing caps and mud covers, maintenance personnel can easily open the support cylinder to expose the sealing rings and sealing blocks inside, allowing them to maintain the internal sealing structure without disassembling the hinge shaft and bushings, thus facilitating routine maintenance.

[0010] As a preferred embodiment of this utility model, the extrusion mechanism includes: a lead screw with a rotating wheel at one end; a guide cylinder with a screw hole threadedly connected to the other end of the lead screw; an extrusion plate threadedly connected to the outer wall of the guide cylinder; and a metal ring disposed between the sealing block and the extrusion plate; wherein the extrusion plate is extruded by the metal ring and the sealing block.

[0011] Furthermore, a rotating wheel is provided at the end of the lead screw away from the guide cylinder. A groove matching a screwdriver can be provided on the patented side. Maintenance personnel can drive the rotating wheel to rotate using a screwdriver, which in turn drives the lead screw to rotate. The lead screw can drive the guide cylinder to move towards the bushing through the thread. The guide cylinder can drive the extrusion plate to move, and the extrusion plate can extrude the metal ring. The metal ring can extrude the sealing block, and the sealing block deforms under pressure.

[0012] As a preferred embodiment of this utility model, the mudproof cover has a shielding groove on its side, and a rubber sheet is bonded inside the shielding groove.

[0013] Furthermore, rubber sheets are used to shield the lead screw on the side of the mudguard, protecting the lead screw and its rotating wheel.

[0014] In a preferred embodiment of this utility model, the surface of the lead screw is rotatably sleeved with the hole of the mudproof cover, and the surface of the guide cylinder is slidably connected with the sliding hole of the mudproof cover.

[0015] Furthermore, the lead screw is rotatably mounted on the mud cover via bearings to ensure the smoothness of the lead screw rotation, and the guide cylinder is slidably mounted on the mud cover via a slide rail to guide the guide cylinder.

[0016] As a preferred embodiment of this utility model, a rubber ring is fitted on the surface of the support cylinder, and the rubber ring abuts against the mud cover.

[0017] Furthermore, the rubber ring can seal the space between the support cylinder and the mud cover, preventing mud and water from seeping into the interior of the support cylinder.

[0018] As a preferred embodiment of this utility model, the side of the extrusion ring is integrally machined with a ring ring, which abuts against the sealing ring.

[0019] Furthermore, the compression ring, through its convex ring, can compress the sealing ring, causing it to deform under pressure and increasing its sealing performance.

[0020] In a preferred embodiment of this utility model, the sealing cap, the extrusion ring, and the sealing ring are all fitted onto the surface of the hinge shaft at their axial centers, with the extrusion ring and the sealing ring in close contact.

[0021] Furthermore, the contact between the extrusion ring and the sealing cap, and the contact between the extrusion ring and the sealing ring, helps to increase the sealing performance.

[0022] Beneficial effects:

[0023] 1. By rotating the sealing cap, the sealing cap can be disengaged from the support cylinder, exposing the compression ring and sealing ring for maintenance. The mud cover can also be rotated to expose the metal ring and sealing block.

[0024] 2. The lead screw can drive the guide cylinder to move, the guide cylinder can drive the extrusion plate to move, and the extrusion plate can extrude the sealing block through the metal ring, causing it to deform and seal the gap between the bushing and the support cylinder;

[0025] In this utility model, the sealing cap and mud cover allow maintenance personnel to easily open the support cylinder, exposing the sealing ring and sealing block inside the support cylinder. This allows maintenance personnel to maintain the sealing structure inside the support cylinder without disassembling the hinge shaft and bushing, thus facilitating daily maintenance. Attached Figure Description

[0026] Figure 1 This is a perspective view of the arc-shaped gate hinge sealing structure for easy maintenance according to an embodiment of the present utility model.

[0027] Figure 2 This is a cross-sectional view of the support cylinder of the arc-shaped gate hinge sealing structure for easy maintenance according to an embodiment of the present utility model;

[0028] Figure 3 This is a disassembly diagram of the sealing cover of the arc-shaped gate hinge sealing structure, which is easy to maintain, according to an embodiment of this utility model.

[0029] Figure 4 This is a cross-sectional view of the mud-proof cover of the arc-shaped gate hinge sealing structure for easy maintenance, according to an embodiment of the present invention.

[0030] In the diagram: 1. Mounting plate; 2. Connecting seat; 3. Support cylinder; 4. Bushing; 5. Hinge shaft; 6. Sealing cap; 7. Extrusion ring; 8. Sealing ring; 9. Mudproof cover; 10. Lead screw; 11. Guide cylinder; 12. Extrusion plate; 13. Metal ring; 14. Sealing block; 15. Rubber sheet.

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The solutions in 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 a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, top, bottom, side, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0034] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0035] To address the technical deficiencies in related technologies, this embodiment provides an arc-shaped gate hinge sealing structure that is easy to maintain, such as... Figures 1 to 4 As shown, the arc-shaped gate hinge sealing structure includes a mounting plate 1 and two connecting seats 2 disposed opposite to each other on the mounting plate 1. A support cylinder 3 is provided on the top of each connecting seat 2. One end of a hinge shaft 5 is inserted into each support cylinder 3, and the other end of the hinge shaft 5 is used to connect to the gate. A bushing 4 is sleeved on the hinge shaft 5, and the bushing 4 is located between the hinge shaft 5 and the inner wall of the support cylinder 3.

[0036] Furthermore, a sealing cap 6 is bolted to the end of each support cylinder 3 facing the other support cylinder 3, and a sealing ring 8 is provided between the bushing 4 and the sealing cap 6, with the sealing ring 8 tightly fitted to the bushing 4. An extrusion ring 7 is provided between the sealing ring 8 and the sealing cap 6, with the extrusion ring 7 interference fit between the sealing ring 8 and the sealing cap 6. A mudproof cover 9 is threaded to the end of each support cylinder 3 facing away from the other support cylinder 3, and a sealing block 14 is provided between the bushing 4 and the mudproof cover 9, with the sealing block 14 connected to the extrusion mechanism.

[0037] With the installation of the sealing cap 6 and the mudproof cover 9, maintenance personnel can easily open the support cylinder 3 to expose the sealing ring 8 and sealing block 14 inside the support cylinder 3, allowing maintenance personnel to maintain the sealing structure inside the support cylinder 3. This eliminates the need to disassemble structures such as the hinge shaft 5 and bushing 4, making daily maintenance convenient.

[0038] In order to compress the sealing block 14, such as Figure 4 As shown, the extrusion mechanism includes a guide cylinder 11 with a threaded hole. One end of a lead screw 10 is threadedly connected to the threaded hole of the guide cylinder 11, and a rotating wheel is provided at the other end of the lead screw 10. An external thread is formed on the outer circumference of the guide cylinder 11, and the guide cylinder 11 is threadedly connected to the extrusion plate 12 through this external thread. A metal ring 13 is provided between the sealing block 14 and the extrusion plate 12, and the extrusion plate 12 is extruded and set by the metal ring 13 against the sealing block 14.

[0039] The rotating wheel can be configured with a groove that matches a screwdriver. Maintenance personnel can rotate the wheel using a screwdriver, which in turn rotates the lead screw 10. The lead screw 10 can drive the guide cylinder 11 to move towards the bushing 4 via its thread. The guide cylinder 11 can then move the pressing plate 12. The pressing plate 12 can press the metal ring 13, which in turn presses the sealing block 14, causing the sealing block 14 to deform under pressure.

[0040] In order to cover the lead screw 10, such as Figure 4 As shown, a shielding groove is provided on the side of the mudguard 9. A rubber sheet 15 is bonded inside the shielding groove. The rubber sheet 15 is used to shield the lead screw 10 on the side of the mudguard 9, thus protecting the lead screw 10 and its rotating wheel.

[0041] To support the extrusion mechanism, such as Figure 4 As shown, the surface of the lead screw 10 is rotatably fitted with the hole in the mud cover 9. The surface of the guide cylinder 11 is slidably connected to the sliding hole in the mud cover 9. The lead screw 10 is rotatably mounted with the mud cover 9 via a bearing to ensure the smooth rotation of the lead screw 10. The guide cylinder 11 is slidably mounted with the mud cover 9 via a slide rail to guide the guide cylinder 11.

[0042] In order to seal the mud cover 9, such as Figure 3 As shown, a rubber ring is fitted onto the surface of the support cylinder 3, and the rubber ring abuts against the mudproof cover 9. The rubber ring can seal the support cylinder 3 and the mudproof cover 9 to prevent mud and water from seeping into the interior of the support cylinder 3.

[0043] In order to compress the sealing ring 8, such as Figure 3 As shown, the side of the extrusion ring 7 is integrally machined with a ring, which abuts against the sealing ring 8. The extrusion ring 7 can compress the sealing ring 8 through the outwardly protruding ring, causing the sealing ring 8 to be deformed under pressure and increasing the sealing performance.

[0044] To increase sealing, such as Figure 2 As shown, the sealing cap 6, the extrusion ring 7, and the sealing ring 8 are all fitted onto the surface of the hinge shaft 5 at their axial centers. The extrusion ring 7 is in close contact with the sealing ring 8, the extrusion ring 7 is in contact with the sealing cap 6, and the extrusion ring 7 is in contact with the sealing ring 8, which helps to increase the sealing performance.

[0045] The operating steps of this utility model are as follows: The mounting plate 1 is installed at the position of the arc-shaped gate, and the hinge shaft 5 is connected to it. The connecting seat 2 supports the support cylinder 3 and the hinge shaft 5, facilitating the rotation of the hinge shaft 5. When maintenance is required on the sealing structure inside the support cylinder 3, the sealing cap 6 can be provided with anti-slip texture or a structure adapted to a wrench, thus facilitating the rotation of the sealing cap 6. The sealing cap 6 can be disengaged from the support cylinder 3 by the thread, exposing the compression ring 7 and the sealing ring 8 for maintenance. The surface of the mudproof cover 9 can also be provided with anti-slip texture or made into a structure adapted to a wrench, facilitating the rotation of the mudproof cover 9. The mudproof cover 9 can be removed to expose the metal ring 13 and the sealing block 14. When the sealing effect needs to be adjusted, first rotate and fix the mudproof cover 9, and then remove the rubber sheet 15. A rotating wheel is provided at the end of the lead screw 10 away from the guide cylinder 11. The rotating wheel can be constructed as a groove that matches a screwdriver. Maintenance personnel can use a screwdriver to rotate the wheel, which in turn drives the lead screw 10 to rotate. The lead screw 10 can then drive the guide cylinder 11 to move towards the bushing 4 via the thread. The guide cylinder 11 can then drive the extrusion plate 12 to move. The extrusion plate 12 can extrude the metal ring 13, which in turn extrudes the sealing block 14. The sealing block 14 deforms under pressure, increasing the extrusion force between the sealing block 14 and the support cylinder 3, thereby increasing the sealing performance between the support cylinder 3 and the bushing 4.

[0046] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. An arc-shaped gate hinge sealing structure that is easy to maintain, characterized in that, include: Mounting plate (1); Two connecting seats (2) are disposed opposite to each other on the mounting plate (1); A support cylinder (3) is disposed on the top of each of the connecting seats (2); A hinge shaft (5) is inserted into each of the support cylinders (3); A bushing (4) is fitted onto each of the hinge pins (5); A sealing cap (6) is bolted to one end of each of the support cylinders (3) facing the other support cylinder (3); A sealing ring (8) is disposed between the bushing (4) and the sealing cap (6) and is in close contact with the bushing (4); An extrusion ring (7) is disposed between the sealing ring (8) and the sealing cap (6); A mud guard (9) is threaded to one end of each of the support cylinders (3) facing away from the other support cylinder (3); A sealing block (14) is disposed between the bushing (4) and the mud cover (9); The extrusion mechanism is connected to the sealing block (14).

2. The arc-shaped gate hinge sealing structure according to claim 1, characterized in that, The extrusion mechanism includes: A lead screw (10) has a wheel at one end; The guide cylinder (11) has its screw hole threadedly connected to the other end of the lead screw (10); The extrusion plate (12) is threadedly connected to the outer wall of the guide cylinder (11); A metal ring (13) is disposed between the sealing block (14) and the extrusion plate (12); The extrusion plate (12) is extruded by the metal ring (13) and the sealing block (14).

3. The arc-shaped gate hinge sealing structure according to claim 2, characterized in that, The mud cover (9) has a shielding groove on its side, and a rubber sheet (15) is bonded inside the shielding groove.

4. The arc-shaped gate hinge sealing structure according to claim 2, characterized in that, The surface of the lead screw (10) is rotatably sleeved with the hole of the mud cover (9), and the surface of the guide cylinder (11) is slidably connected with the sliding hole of the mud cover (9).

5. The arc-shaped gate hinge sealing structure according to claim 1, characterized in that, The surface of the support cylinder (3) is fitted with a rubber ring, which abuts against the mud cover (9).

6. The arc-shaped gate hinge sealing structure according to claim 1, characterized in that, The side of the extrusion ring (7) is integrally machined with a ring ring, which abuts against the sealing ring (8).

7. The arc-shaped gate hinge sealing structure according to claim 1, characterized in that, The sealing cap (6), the extrusion ring (7) and the sealing ring (8) are all fitted onto the surface of the hinge shaft (5) at their axial center, and the extrusion ring (7) is in close contact with the sealing ring (8).