Quick leaking stoppage device for urban water supply pipeline
By combining the design of the mesh rubber pad and the inflatable mesh layer, the problem of misalignment of the half-joint rubber ring under water pressure is solved, achieving efficient sealing of the water supply pipeline, adapting to uneven pipeline surfaces, and improving the leak-stopping effect.
Patent Information
- Application Number
- CN202520610125.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-04-02
AI Technical Summary
The rubber rings of existing couplings are prone to displacement or misalignment under water pressure, resulting in poor sealing performance. Furthermore, uneven surfaces on the water supply pipes can lead to seal failure.
The design combines a mesh rubber pad with an inflatable mesh layer. The mesh rubber pad is fixed with bolts and nuts, and the air channels in the inflatable mesh layer are interconnected. Secondary pressurization and sealing are achieved through air pressure expansion. The arc-shaped rubber layer and the straight rubber layer provide support, the anti-slip strip prevents misalignment, and the arc-shaped baffle restricts axial movement.
It achieves stable sealing performance under high-pressure water flow. The mesh rubber pad can completely cover the leaking area, adaptively conform to the pipe surface, reduce the risk of seal failure, and improve the efficiency of leak plugging.
Smart Images
Figure CN223754967U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water supply pipeline technical field especially is related to a quick plugging device for city water supply pipeline. BACKGROUND
[0002] In the city water supply system, pipeline leakage is a common fault problem, and if the water supply pipeline leaks, the leakage repair may cause waste of water resources, increase of operation cost, and even safety hazards such as road collapse.
[0003] In the rapid repair technology for pipeline leakage, using the half joint plugging is an efficient and convenient emergency repair method. The commonly used half joint is generally composed of a metal shell and a rubber ring. When repairing without stopping water, the rubber ring is relatively narrow and is at the edge of the half joint, so the rubber ring is easily displaced or misaligned under the impact of water pressure, resulting in poor sealing effect and leakage. Since the water supply pipeline is usually buried underground, the ground needs to be excavated to expose the pipeline during repair. The surface of the pipeline is generally rough and uneven due to rust, raised weld marks, deep scratches, etc., which causes the rubber pad at the edge of the half joint to fail to tightly fit the pipeline, resulting in sealing failure.
[0004] Therefore, the present application provides a quick plugging device for city water supply pipeline to solve the problems raised in the above background. SUMMARY
[0005] The utility model discloses a kind of quick plugging devices for city water supply pipeline, solve the problems such as the displacement or misalignment of the rubber ring of existing half joint under the impact of water pressure, poor sealing effect.
[0006] To solve the above technical problems, the utility model provides a quick plugging device for city water supply pipeline, including two half bodies of half joint, two half bodies of half joint are connected by bolt and nut relative connection and form half joint;The inner wall of two half bodies of half joint is respectively arranged with grid rubber pad, the inner side layer of grid rubber pad is inflatable grid layer, the air passage in inflatable grid layer is mutually penetrated, inflatable grid is inflated and expanded to realize secondary pressurization sealing plugging for water supply pipeline by air passage.
[0007] The further improvement of the utility model technical scheme is that: the grid rubber pad further includes arc rubber layer arranged outside its body, the arc rubber layer is symmetrically provided with straight rubber layer parallel to the two end faces of axial direction, and the arc rubber layer and the straight rubber layer are both solid rubber layers.
[0008] The further improvement of the utility model technical scheme is that: the inner side wall of arc rubber layer is adapted to abut inflatable grid layer, longitudinal and transverse intersecting air passages are arranged in inflatable grid layer, the air passages are mutually penetrated, and are communicated with inflation nozzle.
[0009] The further improvement of the utility model technical scheme lies in that the arc-shaped rubber layer is provided with an inflation nozzle in the middle of the arc-shaped outer convex sidewall, and the inflation nozzle is matched with the through hole penetrating through the middle of the half body of the half joint to the outside of the half body of the half joint.
[0010] The further improvement of the utility model technical scheme lies in that the half joint is provided with arc-shaped blocking strips at the two ends, and the inner wall of the half joint is provided with a plurality of anti-skid strips, which are in any one of triangular prismatic, needle-shaped and convex point-shaped.
[0011] The further improvement of the utility model technical scheme lies in that the depth of the arc-shaped blocking strip is 1 / 3-1 / 2 of the thickness of the grid rubber pad, and the arc-shaped blocking strip is used for blocking the axial movement of the grid rubber pad.
[0012] The further improvement of the utility model technical scheme lies in that the inflatable height of the inflatable grid layer is 0-5mm.
[0013] The further improvement of the utility model technical scheme lies in that the arc-shaped rubber layer, the straight rubber layer and the inflatable grid layer adopt an integrated molding process.
[0014] The further improvement of the utility model technical scheme lies in that the outside of the inflation nozzle is matched with a small size nut through screwing, and the small size nut is used for fixing the grid rubber pad on the outer wall of the half joint.
[0015] The above technical scheme is adopted, and the utility model has the following beneficial effects:
[0016] 1. The utility model provides a kind of quick leak stoppage device for urban water supply pipeline, the half joint is provided with the grid rubber pad of the size consistent with the inner wall of half joint by abutting, so that the grid rubber pad can completely cover pipeline leakage site, compared with only the rubber pad being arranged at the edge of half joint, the grid rubber pad is deformed under the uniform pressure of bolt and nut of half joint, fills the pit, corrosion or crack on the surface of pipeline, forms continuous sealing layer.
[0017] 2. The utility model provides a kind of quick leak stoppage device for urban water supply pipeline, the stress area of the size matching grid rubber pad is completely coincident with the shell of half joint, and pressure is applied to the grid rubber pad by bolt and nut tightening to realize primary sealing, under the action of high-pressure water flow, the size matching grid rubber pad and shell are deformed cooperatively, reduce the risk of sealing failure caused by displacement of rubber pad.
[0018] 3. The utility model provides a kind of quick leak stoppage device for urban water supply pipeline, the air passage of the inflatable grid layer is mutually penetrated and inflatable, compared with the fixed size of traditional rubber pad, it is difficult to deal with the extreme concave-convex surface of pipeline, and the inflatable grid layer is adjusted by air pressure to expand the degree, and is adaptively attached to the outer wall of pipeline, to realize secondary pressure sealing.
[0019] 4. The utility model provides a kind of for the quick leak stoppage device of urban water supply pipeline, several anti-skid strips are provided in the half body inner wall of half coupling, arc-shaped fender is provided in the both ends of half coupling, make grid rubber pad and half coupling tightly adhere, anti-skid strip can increase friction between the two, grid rubber pad and pipeline surface have no relative sliding, prevent misplacement when installing, affect sealing leak stoppage effect. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor.
[0021] Figure 1 It is a kind of for the overall schematic diagram of quick leak stoppage device of urban water supply pipeline;
[0022] Figure 2 It is the structural schematic diagram of half coupling and grid rubber pad;
[0023] Figure 3 It is the position exploded schematic view of half coupling and grid rubber pad;
[0024] Figure 4 It is the structural schematic diagram of grid rubber pad;
[0025] Figure 5 It is the sectional structural schematic diagram of grid rubber pad;
[0026] Figure 6 It is the structural schematic diagram of half coupling.
[0027] Reference signs: 1, half coupling;11, through hole;12, arc-shaped fender;13, anti-skid strip;2, grid rubber pad;3, inflatable grid layer;31, air passage;4, arc-shaped rubber layer;5, straight rubber layer;6, inflation nozzle;61, small nut. DETAILED DESCRIPTION
[0028] The technical solutions of the utility model will be described clearly and completely in conjunction with the drawings, obviously, the described embodiments are part of the embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0029] In the description of the utility model, it is necessary to explain that, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0030] In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0031] The utility model will be further explained and described in combination with specific embodiments.
[0032] As Figures 1-6 shown, the utility model provides a kind of for the quick leak stoppage device of city water supply pipeline, including two half bodies 1 of half joint, two half bodies 1 of half joint are connected by bolt and nut relative connection and form half joint;Two half bodies 1 of half joint inner wall is respectively arranged grid rubber pad 2, the inside layer of grid rubber pad 2 is inflatable grid layer 3, the air passage 31 in inflatable grid layer 3 is mutually penetrated, inflatable grid layer 3 is inflated and expanded by air passage 31, and secondary pressurization sealing leak stoppage to water supply pipeline is realized;Specifically, the half body of half joint 1 main body includes arc main body and two side fixed edge wing, grid rubber pad 2 is similar in structure with half joint half body 1, and they are mutually abutted, when using, two half bodies 1 of half joint are wrapped around pipeline water leakage site, and two half bodies 1 of half joint are fixed by bolt and nut and are tightened and fixed on two side fixed edge wing, to realize the first sealing leak stoppage to water supply pipeline, again, inflatable grid layer 3 is inflated by inflating needle through inflation nozzle 6 to the air passage 31 of inflatable grid layer 3, so that inflatable grid layer 3 is expanded, and secondary sealing to water supply pipeline is realized, which improves the leak sealing effect of water supply pipeline.
[0033] As Figures 3-5As shown, in the embodiment, the grid rubber pad 2 further comprises an arc-shaped rubber layer 4 arranged outside the body of the grid rubber pad 2, the arc-shaped rubber layer 4 is symmetrically provided with a straight rubber layer 5 parallel to the two end faces, and the arc-shaped rubber layer 4 and the straight rubber layer 5 are both solid rubber layers; the inner side wall of the arc-shaped rubber layer 4 is adapted to abut against the inflatable grid layer 3, the inflatable grid layer 3 is provided with longitudinal and transverse intersecting air passages 31, the air passages 31 are mutually penetrated and communicate with the inflation nozzle 6; the inflatable grid layer 3 can be expanded to a height of 0-5 mm; the arc-shaped outer convex side wall of the arc-shaped rubber layer 4 is provided with the inflation nozzle 6 in the middle part, the inflation nozzle 6 is adapted to penetrate the through hole 11 in the middle part of the half-joint half body 1 to the outside of the body of the half-joint half body 1 and is fixed by a small nut 61; specifically, the inflation nozzle 6 extends to the outside of the body of the half-joint half body 1 through the through hole 11 and is fixed by the small nut 61, the middle part of the grid rubber pad 2 is a double-layer structure comprising the arc-shaped rubber layer 4 and the inflatable grid layer 3, the arc-shaped rubber layer 4 abuts against the arc-shaped inner wall of the half-joint half body 1, the arc-shaped rubber layer 4 is a solid rubber layer and plays a certain strength supporting role for the entire grid rubber pad 2, the inflatable grid layer 3 is arranged on the body of the arc-shaped rubber layer 4 and can be slightly expanded after inflation, thereby compensating for the unevenness caused by corrosion, welding scars and the like of the water supply pipeline, allowing the inflatable grid layer 3 to be self-adapted to the outer wall of the water supply pipeline and realizing secondary pressurization sealing.
[0034] As shown in Figure 1 , Figure 6 In the embodiment, the half-joint half body 1 is provided with arc-shaped blocking strips 12 at the two end parts, and the inner wall of the half-joint half body 1 is provided with a plurality of anti-skid strips 13 which are triangular prisms; the depth of the arc-shaped blocking strips 12 is 1 / 3-1 / 2 of the thickness of the grid rubber pad 2, and the arc-shaped blocking strips 12 are used to block the axial movement of the grid rubber pad 2; specifically, the two ends of the grid rubber pad 2 are in a stepped layer structure which is adapted to be clamped into the arc-shaped blocking strips at the two end parts of the half-joint half body 1, thereby limiting the position of the grid rubber pad 2 and making it difficult for the grid rubber pad 2 to axially displace relative to the half-joint half body 1, and at the same time, under the action of the anti-skid strips 13, the small nuts 61 and the inflation nozzles 6, the grid rubber pad 2 is also difficult to rotate and dislocate, thereby ensuring the sealing effect after installation.
[0035] As shown in Figures 1-3As shown, in the embodiment, the arc-shaped rubber layer 4, the straight rubber layer 5 and the inflatable grid layer 3 are integrally formed; the small-sized nut 61 is screwed outside the inflation nozzle 6, and the small-sized nut 61 is used for fixing the grid rubber pad 2 on the outer wall of the half hub knuckle 1; specifically, the straight rubber layer 5 and the arc-shaped rubber layer 4 have the same thickness, and are both solid rubber layers; the straight rubber layer 5 is used for sealing the fixed flaps on both sides of the half hub knuckle 1; the inflation nozzle 6 is a solid rubber column; when inflating, the inflation nozzle 6 is inflated by inserting an inflation needle; after pulling out the inflation needle, the inflation nozzle 6 is automatically sealed; the length of the inflation needle is equal to the length of the inflation nozzle 6 plus the total thickness of the arc-shaped rubber layer 4; when inflating, the inflation needle will not pierce the inflatable grid layer 3; meanwhile, the inflation device can monitor the air pressure in the air passage 31, and ensure the inflation effect, wherein the inflation device is an existing device.
[0036] The working principle of the quick leak-stopping device for the urban water supply pipeline is as follows: before use, the staff first installs the grid rubber pad 2 on the inner wall of the half hub knuckle 1; the inflation nozzle 6 of the grid rubber pad 2 extends to the outside of the half hub knuckle 1 through the through hole 11, and is fixed by screwing the small-sized nut 61; when using, the staff first cleans the silt of the water leakage section of the water supply pipeline, then wraps the pipeline water leakage part with two half hub knuckles 1 provided with the grid rubber pad 2, and tightens and fixes the two fixed flaps on both sides of the half hub knuckles 1 by bolts and nuts, so as to realize the first sealing and leak-stopping of the water supply pipeline; then, the staff inserts the inflation needle into the inflation nozzle 6 to inflate the air passage 31 of the inflatable grid layer 3, so that the inflatable grid layer 3 slightly expands, and the water supply pipeline is sealed for the second time, thereby further improving the leak-stopping and sealing effect of the water supply pipeline.
[0037] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A quick plugging device for city water supply pipes, characterized in that, The application relates to a half joint, which comprises two half joint halves (1) connected to each other by bolts and nuts to form a half joint, and a grid rubber pad (2) arranged on the inner wall of each half joint half (1). The inner side of the grid rubber pad (2) is provided with an inflatable grid layer (3), and the air passages (31) in the inflatable grid layer (3) are mutually connected. The inflatable grid layer (3) is inflated and expanded through the air passages (31) to realize secondary pressurization sealing and leakage stopping of a water supply pipeline.
2. A quick plugging device for city water supply pipeline according to claim 1, characterized in that, The grid rubber pad (2) further comprises an arc-shaped rubber layer (4) arranged on the outer side of the grid rubber pad (2), and straight rubber layers (5) symmetrically arranged on the two end faces parallel to the axial direction. The arc-shaped rubber layer (4) and the straight rubber layers (5) are all solid rubber layers.
3. A quick plugging device for city water supply pipeline according to claim 2, characterized in that, The inner side wall of the arc-shaped rubber layer (4) is adapted to abut against the inflatable grid layer (3). The inflatable grid layer (3) is provided with longitudinally and transversely intersected air passages (31) which are mutually connected and communicated with an inflation nozzle (6).
4. A quick plugging device for city water supply pipeline according to claim 3, characterized in that, The inflation nozzle (6) is arranged in the middle of the arc-shaped outer convex side wall of the arc-shaped rubber layer (4) and penetrates through a through hole (11) in the middle of the half joint half (1) to the outer side of the half joint half (1).
5. A quick plugging device for city water supply pipeline according to claim 1, characterized in that, Arc-shaped blocking strips (12) are arranged at the two ends of the half joint half (1), and the inner wall of the half joint half (1) is provided with a plurality of anti-skid strips (13) which are in any one of triangular prismatic, needle-shaped and convex point-shaped.
6. A quick plugging device for city water supply pipeline according to claim 1, characterized in that, The depth of the arc-shaped blocking strip (12) is 1 / 3-1 / 2 of the thickness of the grid rubber pad (2), and the arc-shaped blocking strip (12) is used for blocking the axial movement of the grid rubber pad (2).
7. A quick plugging device for city water supply pipeline according to claim 1, characterized in that, The inflatable height of the inflatable grid layer (3) is 0-5 mm.
8. A quick plugging device for city water supply pipeline according to claim 1, characterized in that, The arc-shaped rubber layer (4), the straight rubber layers (5) and the inflatable grid layer (3) are integrally formed.
9. A quick plugging device for city water supply pipeline according to claim 1, characterized in that, The outer side of the inflation nozzle (6) is adapted to be screwed with a small-sized nut (61), and the small-sized nut (61) is used for fixing the grid rubber pad (2) on the outer wall of the half joint half (1).