A retractable water conduit connection sealing device

Abstract

This utility model discloses a retractable hydraulic pipeline connection sealing device, relating to the field of pipeline connection sealing technology. The utility model includes a first connecting flange and a second connecting flange. The second connecting flange has a second mounting ring fixedly installed on its outer side, and several sealing grooves are axially and equidistantly formed on its outer side. The first connecting flange has a first mounting ring fixedly installed on its outer side, and a mounting groove is formed on one side of the first connecting flange. A sealing component is disposed inside the mounting groove, penetrating the inner surface of the first connecting flange. A control unit is disposed at the end of the first connecting flange near the mounting groove. The sealing component consists of a sealing airbag and a piston plate. By setting the sealing component, which consists of a sealing airbag, piston plate, etc., it is the core part of realizing the sealing function of the device. The sealing effect is ensured through the coordinated action of each component. The control unit is used to control the working state of the sealing component.

Description

Technical Field

[0001] This utility model relates to the field of pipeline connection and sealing technology, specifically to a retractable hydraulic pipeline connection and sealing device. Background Technology

[0002] With the expansion of water conservancy projects and the increasing complexity of application environments, pipelines need to adapt to different lengths, pressures, and media conditions. Therefore, retractable connection sealing devices have become key components for achieving flexible pipeline docking and reliable sealing, and are widely used in various water conveyance, drainage, and fluid transmission scenarios.

[0003] Traditional seals often use materials such as rubber gaskets. These materials are susceptible to aging and hardening due to media corrosion and temperature changes during long-term use, resulting in a decline in sealing performance. Furthermore, when the pipeline expands, contracts, or vibrates, it is difficult to maintain a tight fit with the sealing surface, which can easily lead to gaps and media leakage, thus failing to meet the requirements for long-term stable sealing. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a retractable water pipe connection sealing device, which has the advantages of stable and reliable sealing performance and adaptability to different working conditions, thereby solving the problems of easy aging and poor sealing effect of traditional sealing methods.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a retractable hydraulic pipeline connection sealing device, comprising a first connecting flange and a second connecting flange, a second mounting ring fixedly installed on the outer side of the second connecting flange, and a plurality of sealing grooves axially and equidistantly opened on the outer side of the second connecting flange, a first mounting ring fixedly installed on the outer side of the first connecting flange, a fixing component provided on the outer side of the first mounting ring, an installation groove opened on one side of the first connecting flange, a sealing component provided inside the installation groove, the sealing component inside the installation groove penetrating the inner surface of the first connecting flange, a control part provided at one end of the first connecting flange near the installation groove, the control part cooperating with the sealing component, and the sealing component consisting of a sealing airbag and a piston plate.

[0006] As a preferred embodiment of the present invention, the sealing assembly includes a piston plate, which is movably installed inside the mounting groove, and sealing rings are fixedly installed on both the inner and outer sides of the piston plate.

[0007] As a preferred embodiment of the present invention, the sealing assembly further includes an annular groove, which is formed inside the first connecting flange. The annular groove has a plurality of mounting holes inside it, and the mounting holes are connected to the mounting groove.

[0008] As a preferred technical solution of this utility model, the sealing assembly further includes a sealing airbag, which is fixedly installed inside the annular groove. The sealing airbag is used in conjunction with the sealing groove. Several air inlet pipes are fixedly installed on the outer side of the sealing airbag near the mounting hole, and the outer side of the air inlet pipes is fixedly installed with the inner side of the mounting hole.

[0009] As a preferred embodiment of the present invention, the sealing assembly further includes an annular sealing plate, which is fixedly installed inside the mounting groove near the second connecting flange. The annular sealing plate has four movable holes on one side.

[0010] As a preferred embodiment of this utility model, the control unit includes four push rods. One end of each push rod is fixedly installed on the piston plate near the annular sealing plate, and the other end of each push rod passes through a movable hole and is fixedly installed with an annular plate.

[0011] As a preferred embodiment of this utility model, the control unit further includes an L-shaped fixing plate, which is fixedly installed on the outside of the annular plate, and the top of the L-shaped fixing plate is provided with several fixing holes.

[0012] As a preferred embodiment of this utility model, the fixing component includes a fixing groove, which is formed on one side of the first mounting ring. A circular hole is formed on the outer side of the first mounting ring, and a rod is movably installed inside the circular hole. The rod cooperates with the fixing hole, and a spring is fixedly installed at the bottom of the rod. The other end of the spring is fixedly installed on the outer side of the first mounting ring.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention uses a sealing assembly consisting of a sealing airbag and a piston plate to form a multi-layer seal with a sealing groove. The expansion degree of the sealing airbag can be adjusted by the control unit to enhance the fit with the sealing groove and improve the sealing reliability. At the same time, the fixing component and the control unit work together to stabilize the working state of the sealing assembly and adapt to the expansion and contraction requirements of the pipeline.

[0015] The sealing rings fixedly installed on both the inner and outer sides of the piston plate can effectively enhance the sealing performance inside the mounting groove and prevent gas from leaking out of the gap between the piston plate and the mounting groove. Therefore, when the piston plate moves in the mounting groove, the gas in the mounting groove can enter the sealed airbag through the air inlet pipe, ensuring that the gas can fully inflate the sealed airbag. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a retractable water conservancy pipeline connection and sealing device according to the present invention;

[0017] Figure 2This is a schematic diagram of the cross-sectional structure of a retractable water conservancy pipeline connection and sealing device according to the present invention;

[0018] Figure 3 This is a schematic diagram of the second connecting flange structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the first connecting flange structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the control unit structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the cross-sectional structure of the first connecting flange of this utility model;

[0022] Figure 7 This is an enlarged structural schematic diagram of utility model A;

[0023] Figure 8 This is a schematic diagram of the piston plate structure of this utility model;

[0024] Figure 9 This is a cross-sectional view of the first connecting flange of this utility model;

[0025] Figure 10 This is a schematic diagram of the first mounting ring structure of this utility model;

[0026] Figure 11 This is an enlarged structural schematic diagram of utility model B.

[0027] Reference numerals: 1. First connecting flange; 2. First mounting ring; 3. Second connecting flange; 4. Second mounting ring; 5. Sealing groove; 6. Mounting groove; 7. Annular sealing plate; 8. Movable hole; 9. Piston plate; 10. Sealing ring; 11. Push rod; 12. Annular plate; 13. Annular groove; 14. Mounting hole; 15. Sealing airbag; 16. Air inlet pipe; 17. L-shaped fixing plate; 18. Fixing hole; 19. Fixing groove; 20. Insert rod; 21. Spring. Detailed Implementation

[0028] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0029] Figures 1-11 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 - Appendix Figure 11 The present invention will be further described below.

[0030] A retractable hydraulic pipeline connection sealing device includes a first connecting flange 1 and a second connecting flange 3. The device is characterized in that a second mounting ring 4 is fixedly installed on the outer side of the second connecting flange 3, and a plurality of sealing grooves 5 are axially and equidistantly formed on the outer side of the second connecting flange 3. A first mounting ring 2 is fixedly installed on the outer side of the first connecting flange 1, and a fixing component is provided on the outer side of the first mounting ring 2. An installation groove 6 is formed on one side of the first connecting flange 1, and a sealing component is provided inside the installation groove 6. The sealing component inside the installation groove 6 penetrates the inner surface of the first connecting flange 1. A control part is provided at one end of the first connecting flange 1 near the installation groove 6, and the control part works in conjunction with the sealing component. The sealing component consists of a sealing airbag 15 and a piston plate 9.

[0031] In this embodiment, the first connecting flange 1 and the second connecting flange 3 are set as the main connecting components of the device, providing an installation base for other components. The second mounting ring 4 is fixedly installed on the outside of the second connecting flange 3, enhancing the structural stability of the second connecting flange 3 and assisting in the stability of the pipeline connection. The sealing groove 5 is opened on the outside of the second connecting flange 3 and works with the sealing airbag 15 to provide a fitting space for sealing. The first mounting ring 2 is fixed on the outside of the first connecting flange 1, providing an installation position for the fixing component and enhancing the stability of the overall structure. The mounting groove 6 provides movement space for the piston plate 9 in the sealing component. The sealing component, composed of the sealing airbag 15, piston plate 9, etc., is the core part of realizing the sealing function of the device. The sealing effect is ensured through the coordinated action of various components. The control unit works with the sealing component to control the working state of the sealing component and adjust the degree of sealing. The sealing airbag 15 is installed in the annular groove 13 and works with the sealing groove 5. After inflation, it expands to achieve sealing. The fixing component is set on the outside of the first mounting ring 2 to fix the position of the control unit and ensure the stability of the working state of the sealing component. Several threaded holes are provided on one side of the first mounting ring 2, and a screw is connected to the inside of the threaded hole; several round holes are provided on one side of the second mounting ring 4, and the positions of the round holes correspond to the threaded holes. The screw passes through the round holes. Several nuts are provided on both sides of the second mounting ring 4. The nuts are threaded to the outside of the screw. The nuts are used to fix the position of the second connecting flange 3 after adjustment, so as to realize the telescopic function of the device.

[0032] Specifically, the sealing assembly includes a piston plate 9, which is movably installed inside the mounting groove 6, and sealing rings 10 are fixedly installed on both the inner and outer sides of the piston plate 9.

[0033] In this embodiment, by movably installing the piston plate 9 inside the mounting groove 6, the gas inside the mounting groove 6 can be compressed through its movement within the mounting groove 6, providing power for inflating the sealing airbag 15. The sealing ring 10 is fixedly installed on the inner and outer sides of the piston plate 9, which can enhance the sealing between the piston plate 9 and the mounting groove 6, prevent the gas inside the mounting groove 6 from leaking out from the gap between the piston plate 9 and the mounting groove 6, ensure that the gas can fully enter the sealing airbag 15, and guarantee the sealing effect.

[0034] Specifically, the sealing assembly also includes an annular groove 13, which is formed inside the first connecting flange 1. The annular groove 13 has several mounting holes 14 inside, which are connected to the mounting groove 6.

[0035] In this embodiment, by opening the annular groove 13 inside the first connecting flange 1, a stable installation space is provided for the sealing airbag 15. The mounting hole 14 is opened inside the annular groove 13 and is connected to the mounting groove 6, serving as a gas passage so that the gas compressed by the piston plate 9 in the mounting groove 6 can smoothly enter the sealing airbag 15 through the mounting hole 14, providing a path for the sealing airbag 15 to be inflated.

[0036] Specifically, the sealing assembly also includes a sealing airbag 15, which is fixedly installed inside the annular groove 13. The sealing airbag 15 is used in conjunction with the sealing groove 5. Several air inlet pipes 16 are fixedly installed on the outer side of the sealing airbag 15 near the mounting hole 14. The outer side of the air inlet pipes 16 is fixedly installed with the inner side of the mounting hole 14.

[0037] In this embodiment, the sealing airbag 15 is fixedly installed in the annular groove 13. By cooperating with the sealing groove 5, it expands after inflation and tightly fits the inner wall of the sealing groove 5 to form an effective seal and prevent pipeline medium leakage. The sealing airbag 15 is arranged in an annular shape. The air inlet pipe 16 is fixedly installed on the outer side of the sealing airbag 15 near the mounting hole 14 and is fixedly connected to the inner side of the mounting hole 14. It serves as a gas delivery channel to introduce the gas transmitted from the mounting groove 6 through the mounting hole 14 into the sealing airbag 15.

[0038] Specifically, the sealing assembly also includes an annular sealing plate 7, which is fixedly installed inside the mounting groove 6 near the second connecting flange 3. Four movable holes 8 are provided on one side of the annular sealing plate 7.

[0039] In this embodiment, by fixing the annular sealing plate 7 inside the mounting groove 6 near the second connecting flange 3, the piston plate 9 in the mounting groove 6 is limited, preventing the piston plate 9 from moving excessively towards the second connecting flange 3. At the same time, it enhances the structural stability of the end of the mounting groove 6 and avoids gas leakage. The movable hole 8 provides a passage for the push rod 11 to pass through and move, ensuring that the push rod 11 can smoothly drive the piston plate 9 to move in the mounting groove 6, and at the same time, it guides the movement of the push rod 11.

[0040] Specifically, the control unit includes four push rods 11. One end of the push rod 11 is fixedly installed on the piston plate 9 near the annular sealing plate 7, and the other end of the push rod 11 passes through the movable hole 8 and is fixedly installed with an annular plate 12.

[0041] In this embodiment, one end of the push rod 11 is fixed to the piston plate 9, and the other end passes through the movable hole 8 and is connected to the annular plate 12, which plays a role in force transmission. The piston plate 9 is pushed to move in the mounting groove 6 by the annular plate 12. The end of the annular plate 12 and the push rod 11 away from the piston plate 9 is fixed. When an external force is applied to the annular plate 12, the four push rods 11 can be moved synchronously to achieve uniform force on the piston plate 9, ensure the force balance of the piston plate 9, and avoid the sealing effect due to uneven force.

[0042] Specifically, the control unit also includes an L-shaped fixing plate 17, which is fixedly installed on the outside of the annular plate 12, and the top of the L-shaped fixing plate 17 is provided with several fixing holes 18.

[0043] In this embodiment, the L-shaped fixing plate 17 is fixedly installed on the outside of the annular plate 12 as an intermediate component connecting the annular plate 12 and the fixing assembly. The position of the annular plate 12 is associated with the fixing assembly through its own structure, which facilitates the fixing of the position of the control unit. The fixing hole 18 is opened on the top of the L-shaped fixing plate 17 and is used in conjunction with the insertion rod 20 in the fixing assembly. By inserting the insertion rod 20 into the fixing hole 18, the position of the L-shaped fixing plate 17 and the entire control unit is fixed, ensuring the stable working state of components such as the piston plate 9.

[0044] Specifically, the fixing component includes a fixing groove 19, which is opened on one side of the first mounting ring 2. A circular hole is opened on the outer side of the first mounting ring 2. A plug rod 20 is movably installed inside the circular hole. The plug rod 20 is used in conjunction with the fixing hole 18. A spring 21 is fixedly installed at the bottom of the plug rod 20. The other end of the spring 21 is fixedly installed on the outer side of the first mounting ring 2.

[0045] In this embodiment, by opening the fixing groove 19 on one side of the first mounting ring 2, a movable and accommodating space is provided for the L-shaped fixing plate 17, ensuring that the L-shaped fixing plate 17 is not obstructed when moving with the control unit. The round hole is opened on the outside of the first mounting ring 2, providing a movable installation space for the insertion rod 20, ensuring that the insertion rod 20 can move up and down flexibly to cooperate or separate from the fixing hole 18. The insertion rod 20 is movably installed inside the round hole and cooperates with the fixing hole 18. By inserting into the fixing hole 18, the L-shaped fixing plate 17 is fixed, thereby stabilizing the working state of the control unit and the sealing assembly. When pulled out, the fixing can be released, making it convenient to adjust the control unit. One end of the spring 21 is fixed to the bottom of the insertion rod 20, and the other end is fixed to the outside of the first mounting ring 2, providing elastic restoring force for the insertion rod 20, so that the insertion rod 20 remains inserted into the fixing hole 18 when no external force is applied, enhancing the stability of the fixing. When the insertion rod 20 is pulled by an external force, it is stretched, making it convenient to release the fixing.

[0046] In summary: When using this utility model, the first step is to adjust the telescopic length to fit the pipe length. Specifically, this is done by manually rotating the nuts on both sides of the second mounting ring 4. The change in the position of the nuts on the screw causes the second mounting ring 4 and the second connecting flange 3 to move relative to the first connecting flange 1. Since the screw is threaded into the threaded hole of the first mounting ring 2 and passes through the round hole of the second mounting ring 4, adjusting the position of the nuts can change the distance between the first connecting flange 1 and the second connecting flange 3. After adjusting to the appropriate length and when the sealing groove 5 and the sealing airbag 15 are aligned, the nuts are manually tightened to fix the position of the second connecting flange 3, completing the telescopic adjustment. Then, the sealing operation is performed by manually pulling the insertion rod 20, which stretches the spring 21 and pulls the insertion rod 20 out of the fixing hole 18, releasing the L-shaped fixing. After fixing the fixed plate 17, manually push the annular plate 12. The piston plate 9 moves in the mounting groove 6 via the push rod 11. The sealing rings 10 on the inner and outer sides of the piston plate 9 ensure the sealing of the mounting groove 6 and prevent gas leakage. The piston plate 9 compresses the gas in the mounting groove 6. The gas enters the sealing airbag 15 through the mounting hole 14 and the air inlet pipe 16 in sequence, causing the sealing airbag 15 to expand in the annular groove 13. The expanded sealing airbag 15 fits tightly with the sealing groove 5 on the second connecting flange 3 to form an effective seal. After sealing, manually release the insert rod 20, the spring 21 returns to its original position, and push the insert rod 20 into the fixing hole 18 on the L-shaped fixed plate 17 to fix the position of the L-shaped fixed plate 17. This, in turn, fixes the annular plate 12, the push rod 11, and the piston plate 9, so that the sealing assembly maintains a stable sealing state.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A retractable hydraulic pipeline connection sealing device, comprising a first connecting flange (1) and a second connecting flange (3), characterized in that, A second mounting ring (4) is fixedly installed on the outer side of the second connecting flange (3). Several sealing grooves (5) are axially and equidistantly opened on the outer side of the second connecting flange (3). A first mounting ring (2) is fixedly installed on the outer side of the first connecting flange (1). A fixing component is provided on the outer side of the first mounting ring (2). A mounting groove (6) is opened on one side of the first connecting flange (1). A sealing component is provided inside the mounting groove (6). The sealing component inside the mounting groove (6) penetrates the inner surface of the first connecting flange (1). A control part is provided at one end of the first connecting flange (1) near the mounting groove (6). The control part is used in conjunction with the sealing component. The sealing component consists of a sealing airbag (15) and a piston plate (9).

2. The retractable hydraulic pipeline connection sealing device according to claim 1, characterized in that, The sealing assembly includes a piston plate (9), which is movably installed inside the mounting groove (6), and sealing rings (10) are fixedly installed on both the inner and outer sides of the piston plate (9).

3. The retractable hydraulic pipeline connection sealing device according to claim 2, characterized in that, The sealing assembly also includes an annular groove (13), which is formed inside the first connecting flange (1). The annular groove (13) has several mounting holes (14) inside, which are connected to the mounting groove (6).

4. A retractable hydraulic pipeline connection sealing device according to claim 3, characterized in that, The sealing assembly also includes a sealing airbag (15), which is fixedly installed inside the annular groove (13). The sealing airbag (15) is used in conjunction with the sealing groove (5). Several air inlet pipes (16) are fixedly installed on the outer side of the sealing airbag (15) near the mounting hole (14). The outer side of the air inlet pipes (16) is fixedly installed with the inner side of the mounting hole (14).

5. A retractable hydraulic pipeline connection sealing device according to claim 4, characterized in that, The sealing assembly also includes an annular sealing plate (7), which is fixedly installed inside the mounting groove (6) near the second connecting flange (3). The annular sealing plate (7) has four movable holes (8) on one side.

6. A retractable hydraulic pipeline connection sealing device according to claim 5, characterized in that, The control unit includes four push rods (11). One end of each push rod (11) is fixedly installed on the piston plate (9) near the annular sealing plate (7). The other end of each push rod (11) passes through the movable hole (8) and is fixedly installed with an annular plate (12).

7. A retractable hydraulic pipeline connection sealing device according to claim 6, characterized in that, The control unit also includes an L-shaped fixing plate (17), which is fixedly installed on the outside of the annular plate (12), and the top of the L-shaped fixing plate (17) has several fixing holes (18).

8. A retractable hydraulic pipeline connection sealing device according to claim 1, characterized in that, The fixing component includes a fixing groove (19), which is opened on one side of the first mounting ring (2). A circular hole is opened on the outer side of the first mounting ring (2). A plug rod (20) is movably installed inside the circular hole. The plug rod (20) is used in conjunction with the fixing hole (18). A spring (21) is fixedly installed at the bottom of the plug rod (20). The other end of the spring (21) is fixedly installed on the outer side of the first mounting ring (2).

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