A clamp type quick connect flange device for valve mounting

Abstract

The utility model discloses a kind of clamp type quick connection flange device for valve installation, including flange sleeve, flange, clamping ring nut, compression mechanism, first sealing assembly and second sealing assembly, flange sleeve one end thread connection clamping ring nut, other end outside setting flange, flange and the flange plate of valve are connected by bolt, and flange sleeve is compressed on the flange plate of valve, flange sleeve is close to the one end of clamping ring nut and is connected with pipeline sealing by first sealing assembly, other end is connected with pipeline sealing by second sealing assembly, compression mechanism includes clamp and open tooth ring, open tooth ring is set in clamp, the inner wall of open tooth ring is equipped with tooth slot structure, the one end of clamp and the one end of clamping ring nut away from flange sleeve are mutually clamped and connected in axial direction, other end inside is equipped with limit protrusion, limit protrusion forms limit to open tooth ring in axial direction. The utility model is simple and convenient to operate, reliable in sealing, can effectively improve installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of valve installation device technology, and in particular to a clamp-type quick-connect flange device for valve installation. Background Technology

[0002] Currently, installing valves on hot and cold water pipes such as HVAC and tap water systems presents several problems, regardless of whether the pipes require welded connections (metal pipes) or heat fusion connections (non-metallic pipes such as PE pipes). Firstly, it requires a complete set of specialized equipment, electrical connection, and a dry working environment. Even trace amounts of moisture in the pipes and fittings can lead to unreliable connections and leaks, especially with heat fusion fittings. Once a leak occurs, the fitting must be cut off and scrapped, not reused, requiring the fusion of new fittings, resulting in significant waste. Secondly, it typically requires... Water must be passed through the pipeline to test the sealing of welds and hot-melt connections. If a leak occurs, the entire pipeline must be shut off and the water drained before repairs can be made, which is time-consuming, labor-intensive, and costly. In addition, valve installation requires a large operating space, involves a large amount of excavation, has high construction costs, is complex to operate, and requires highly skilled personnel. Finally, existing quick couplings are lacking in sealing performance, pressure resistance, and service life, and are only suitable for temporary, low-pressure applications. Furthermore, there is no structure that can be used for both non-metallic materials such as PE hot-melt pipes and metallic pipes.

[0003] Therefore, providing a quick-connect flange device for valve installation that is simple to operate and has reliable sealing is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a clamp-type quick-connect flange device for valve installation, which solves the problems existing in the prior art. It is simple and convenient to operate, has reliable sealing, and can effectively improve installation efficiency.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a clamp-type quick-connect flange device for valve installation, including a flange sleeve, a flange, a retaining ring nut, a clamping mechanism, a first sealing component, and a second sealing component. One end of the flange sleeve is threaded to the retaining ring nut, and the other end is externally provided with the flange. The flange is bolted to the flange of the valve, and the flange sleeve is pressed tightly onto the flange of the valve. The end of the flange sleeve near the retaining ring nut is sealed to the pipeline through the first sealing component, and the other end is sealed to the pipeline through the second sealing component. The clamping mechanism includes a clamp and an open toothed ring. The open toothed ring is disposed inside the clamp, and the inner wall of the open toothed ring has a toothed groove structure. One end of the clamp and the end of the retaining ring nut away from the flange sleeve are axially interlocked, and the other end has a limiting protrusion inside, which limits the open toothed ring in the axial direction.

[0006] Preferably, the flange sleeve has a tapered stepped groove at one end near the retaining ring nut. The first sealing assembly includes a first O-ring and a second O-ring, the diameter of which is larger than that of the first O-ring. The first O-ring and the second O-ring are sequentially disposed in the tapered stepped groove. The second O-ring abuts against the pressing end face of the retaining ring nut, and the retaining ring nut presses the second O-ring and the first O-ring into the tapered stepped groove.

[0007] Preferably, the second sealing assembly includes a third O-ring, and the inner wall of the flange sleeve at the end away from the retaining nut is provided with a sealing groove, and the third O-ring is disposed in the sealing groove.

[0008] Preferably, it further includes a sealing gasket disposed between the flange sleeve and the flange of the valve.

[0009] Preferably, the end of the retaining nut away from the flange sleeve is provided with a retaining groove, and the end of the clamp away from the limiting protrusion is provided with a retaining protrusion that engages with the retaining groove.

[0010] Preferably, the toothed groove structure is a serrated toothed groove structure arranged circumferentially.

[0011] Preferably, the flange and the flange sleeve are connected by a stepped structure, and the flange presses the flange sleeve against the flange of the valve through the stepped structure.

[0012] Preferably, the flange sleeve is provided with a pressure punch hole that connects the inside and outside, and the pressure punch hole is located between the first sealing component and the second sealing component.

[0013] The present invention achieves the following technical advantages over the prior art: The clamp-type quick-connect flange device for valve installation provided by this utility model can seal the pipeline to the flange sleeve through the first sealing component and the second sealing component. Through the clamping action, the open toothed ring can be locked to the pipeline, and the clamping nut can be connected to the flange sleeve. Then, the flange sleeve is pressed onto the flange of the valve to realize the valve installation. The operation is simple, the sealing is reliable, and it can effectively improve the installation efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the clamp-type quick-connect flange device for valve installation in an embodiment of this utility model; Figure 2 for Figure 1 A magnified view of part A in the middle; Figure 3 This is a schematic diagram of the clamp structure in an embodiment of the present utility model; Figure 4 This is a cross-sectional view of the clamp in an embodiment of this utility model; Figure 5 This is a schematic diagram of the structure of the open toothed ring in an embodiment of the present utility model; Figure 6 This is a cross-sectional view of the open toothed ring in an embodiment of the present invention.

[0016] In the diagram: 1-Flange sleeve, 2-Flange, 3-Snap ring nut, 4-Tightening mechanism, 5-First sealing assembly, 6-Second sealing assembly, 7-Bolt, 8-Pipeline, 9-Clamp, 10-Open toothed ring, 11-Groove structure, 12-Limiting protrusion, 13-Conical stepped groove, 14-First O-ring seal, 15-Second O-ring seal, 16-Extrusion end face, 17-Third O-ring seal, 18-Sealing groove, 19-Sealing gasket, 20-Slot, 21-Slot protrusion, 22-Stepped structure, 23-Pressure hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The purpose of this invention is to provide a clamp-type quick-connect flange device for valve installation, which solves the problems existing in the prior art. It is simple and convenient to operate, has reliable sealing, and can effectively improve installation efficiency.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1-6 As shown, this embodiment provides a clamp-type quick-connect flange device for valve installation, including a flange sleeve 1, a flange 2, a retaining nut 3, a clamping mechanism 4, a first sealing component 5, and a second sealing component 6. One end of the flange sleeve 1 is threadedly connected to the retaining nut 3, and the other end is externally provided with a flange 2. The flange 2 is connected to the flange of the valve by bolts 7, and the flange sleeve 1 is pressed onto the flange of the valve. The end of the flange sleeve 1 near the retaining nut 3 is sealed to the pipeline 8 through the first sealing component 5, and the other end is sealed to the pipeline 8 through the second sealing component 6. The clamping mechanism 4 includes a clamp 9 and an open toothed ring 10. The open toothed ring 10 is disposed inside the clamp 9, and the inner wall of the open toothed ring 10 is provided with a toothed groove structure 11. One end of the clamp 9 and the end of the retaining nut 3 away from the flange sleeve 1 are axially interlocked, and the other end is provided with a limiting protrusion 12, which limits the open toothed ring 10 in the axial direction.

[0021] In use, flange sleeve 1, retaining nut 3, and open toothed ring 10 are fitted onto pipe 8, and retaining nut 3 is tightened. Pipe 8 is sealed to flange sleeve 1 through first sealing component 5 and second sealing component 6. Clamp 9 is tightened, and clamp 9 is a split clamp. Under the action of clamp 9, open toothed ring 10 is locked to pipe 8. Then, flange 2 is connected to valve flange through bolt 7, and flange sleeve 1 is pressed onto valve flange to realize valve installation. The operation is simple and convenient, the seal is reliable, no power supply is required, and it can be operated with water without special equipment, effectively improving installation efficiency and saving energy. It can be applied to non-metallic or metallic pipelines and has a wide range of applications.

[0022] In this embodiment, the flange sleeve 1 has a tapered stepped groove 13 at one end near the retaining nut 3. The first sealing assembly 5 includes a first O-ring 14 and a second O-ring 15. The diameter of the second O-ring 15 is larger than the diameter of the first O-ring 14. The first O-ring 14 and the second O-ring 15 are sequentially arranged in the tapered stepped groove 13. The second O-ring 15 abuts against the pressing end face 16 of the retaining nut 3, and the retaining nut 3 presses the second O-ring 15 and the first O-ring 14 tightly into the tapered stepped groove 13. With the double sealing rings, the sealing effect with the pipeline 8 can be guaranteed under the pressing action of the retaining nut 3.

[0023] In this embodiment, the second sealing assembly 6 includes a third O-ring seal 17. A sealing groove 18 is provided on the inner wall of the end of the flange sleeve 1 furthest from the retaining nut 3, and the third O-ring seal 17 is disposed within the sealing groove 18. The sealing with the pipeline 8 is achieved through the cooperation of the third O-ring seal 17 and the sealing groove 18.

[0024] In this embodiment, a sealing gasket 19 is also included, which is disposed between the flange sleeve 1 and the flange of the valve. One end of the sealing gasket 19 extends into the port of the pipeline 8 and is in close contact with the inner wall of the pipeline 8, while the other end is in close contact with the end face of the flange sleeve 1 to ensure the sealing at this location.

[0025] In this embodiment, the end of the retaining nut 3 away from the flange sleeve 1 is provided with a retaining groove 20, and the end of the clamp 9 away from the limiting protrusion 12 is provided with a retaining protrusion 21 that engages with the retaining groove 20. The retaining nut 3 and the clamp 9 are connected to each other in the axial direction through the engaging structure of the retaining protrusion 21 and the retaining groove 20, which is a simple structure.

[0026] In this embodiment, the toothed groove structure 11 is a serrated toothed groove structure arranged along the circumference, which can better grip the pipe 8 and prevent the pipe 8 from loosening axially.

[0027] In this embodiment, flange 2 and flange sleeve 1 are connected by a stepped structure 22. Flange 2 presses flange sleeve 1 onto the flange of the valve through the stepped structure 22. The structure is simple and easy to install.

[0028] In this embodiment, the flange sleeve 1 is provided with a pressure testing hole 23 connecting the inside and outside, located between the first sealing component 5 and the second sealing component 6. After the pipeline 8 and valve are installed, a pressure testing connector is installed in the pressure testing hole 23 and a pressure testing device is connected. The pressure is applied at 1.5 times the maximum operating pressure of the pipeline 8 and maintained for a period of time. The sealing condition of the flange device can then be tested on-site. If there is no leakage, the pressure testing is complete. Finally, the pressure testing connector and pressure testing device are removed, and a sealing plug is installed in the pressure testing hole 23 to seal it. This allows for on-site pressure testing to check for leaks in the flange device without passing water through the pipeline 8, avoiding the need for water to be passed through the entire pipeline to test the sealing condition of welds and hot-melt connections, as is required for welded and hot-melt flanges, thus eliminating the need for rework.

[0029] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A clamp-type quick-connect flange device for valve installation, characterized in that: The device includes a flange sleeve, a flange, a retaining ring nut, a clamping mechanism, a first sealing assembly, and a second sealing assembly. One end of the flange sleeve is threaded to the retaining ring nut, and the other end is externally fitted with the flange. The flange is bolted to the flange of a valve, pressing the flange sleeve onto the valve flange. The end of the flange sleeve near the retaining ring nut is sealed to the pipeline via the first sealing assembly, and the other end is sealed to the pipeline via the second sealing assembly. The clamping mechanism includes a clamp and an open toothed ring. The open toothed ring is disposed within the clamp, and its inner wall has a toothed groove structure. One end of the clamp is axially engaged with the end of the retaining ring nut away from the flange sleeve, and the other end has a limiting protrusion inside, which limits the open toothed ring in the axial direction.

2. The clamp-type quick-connect flange device for valve installation according to claim 1, characterized in that: The flange sleeve has a tapered stepped groove at one end near the retaining nut. The first sealing assembly includes a first O-ring and a second O-ring. The diameter of the second O-ring is larger than that of the first O-ring. The first O-ring and the second O-ring are sequentially arranged in the tapered stepped groove. The second O-ring abuts against the pressing end face of the retaining nut, and the retaining nut presses the second O-ring and the first O-ring into the tapered stepped groove.

3. The clamp-type quick-connect flange device for valve installation according to claim 1, characterized in that: The second sealing assembly includes a third O-ring seal. The inner wall of the flange sleeve at the end away from the retaining nut has a sealing groove, and the third O-ring seal is disposed in the sealing groove.

4. The clamp-type quick-connect flange device for valve installation according to claim 1, characterized in that: It also includes a sealing gasket, which is disposed between the flange sleeve and the flange of the valve.

5. The clamp-type quick-connect flange device for valve installation according to claim 1, characterized in that: The end of the retaining nut away from the flange sleeve is provided with a retaining groove, and the end of the clamp away from the limiting protrusion is provided with a retaining protrusion that engages with the retaining groove.

6. The clamp-type quick-connect flange device for valve installation according to claim 1, characterized in that: The toothed groove structure is a sawtooth-shaped toothed groove structure arranged circumferentially.

7. The clamp-type quick-connect flange device for valve installation according to claim 1, characterized in that: The flange and the flange sleeve are connected by a stepped structure, and the flange presses the flange sleeve against the flange of the valve through the stepped structure.

8. The clamp-type quick-connect flange device for valve installation according to claim 1, characterized in that: The flange sleeve is provided with a pressure punch hole that connects the inside and outside, and the pressure punch hole is located between the first sealing component and the second sealing component.

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