Movable flange dredging pipe

Abstract

The utility model discloses a loose flange dredge pipe which comprises an upper dredge pipe, the bottom of the surface of the upper dredge pipe is fixedly connected with a fixed flange, the bottom of the upper dredge pipe is provided with a lower dredge pipe, and the top of the surface of the lower dredge pipe is sleeved with a loose flange. The fixed flange and the movable flange are sealed through the main sealing ring, the matching allowance sealing ring groove is matched with the first matching allowance sealing ring, the second matching allowance sealing ring and the sealing rubber ring, secondary sealing is conducted on the fixed flange and the movable flange, the space in the matching allowance sealing ring groove can be sealed, and the sealing effect is good. The fixed flange and the movable flange which are not installed in a completely aligned mode are sealed, the movable allowance sealing ring is pushed to move to a proper position in the movable allowance sealing ring groove through matching of the position finding groove, the position finding groove and the movable allowance sealing ring can form a third sealing measure, and three sealing measures exist between the movable flange and the fixed flange. And the use sealing performance of the loose flange dredging pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dredging pipes, in particular to a live flange dredging pipe. Background Art

[0002] Usually made of high-strength metal materials or wear-resistant plastic materials; steel pipes have high strength and pressure resistance, can withstand the high-pressure transportation of materials during the dredging process, and have a long service life; for example, in large-scale port dredging projects, the steel dredging pipes used can effectively resist seawater corrosion and material scouring; plastic dredging pipes are light and corrosion-resistant, making them convenient for use in some small dredging occasions or those with requirements for pipe weight.

[0003] During the connection of dredging pipes, a live flange is required. In order to better cooperate with the fixed flange, there is only one sealing rubber ring between the two for sealing. When the live flange is used for a long time, the sealing rubber ring will age. The live flange lacks leakage prevention measures, resulting in the aging of the single sealing rubber ring. Liquid leaks between the live flange and the fixed flange, reducing the sealing performance of the live flange dredging pipe. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a live flange dredging pipe, which has the advantage of high sealing performance and solves the problem that in order for the live flange to better cooperate with the fixed flange, there is only one sealing rubber ring between the two for sealing. When the live flange is used for a long time, the sealing rubber ring will age. The live flange lacks leakage prevention measures, resulting in the leakage of liquid between the live flange and the fixed flange after the single sealing rubber ring ages, thereby reducing the sealing performance of the live flange dredging pipe.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a live flange dredging pipe, comprising an upper dredging pipe, the bottom of the upper dredging pipe surface is fixedly connected with a fixed flange, the bottom of the upper dredging pipe is provided with a lower dredging pipe, the top of the lower dredging pipe surface is sleeved with a live flange, the bottom of the fixed flange is provided with a fitting margin sealing ring groove, the interior of the fitting margin sealing ring groove is provided with a fitting margin sealing ring 1, the outer side of the fitting margin sealing ring 1 is provided with a fitting margin sealing ring 2, the bottoms of the fitting margin sealing ring 1 and the fitting margin sealing ring 2 are both fixedly connected to the top of the live flange, the tops of the fitting margin sealing ring 1 and the fitting margin sealing ring 2 are both fixedly connected with a sealing rubber ring, the surface of the sealing rubber ring is in contact with the inner wall of the fitting margin sealing ring groove, the bottom of the fixed flange is provided with a main sealing ring, the bottom of the main sealing ring is in contact with the top of the live flange, and the bottom of the fixed flange is provided with a leakage prevention protection structure.

[0006] As a preferred embodiment of the present invention, the leakage prevention protection structure includes a positioning groove, which is opened at the bottom of the fixed flange, and a surplus movable sealing ring groove is opened at the top of the movable flange. The interior of the surplus movable sealing ring groove is slidingly connected with a surplus movable sealing ring, and the top of the surplus movable sealing ring contacts the inner wall of the positioning groove.

[0007] As a preferred embodiment of the present invention, a sealing ring is fixedly connected to the surface of the residual movable sealing ring, and the surface of the sealing ring is in contact with the inner wall of the residual movable sealing ring groove.

[0008] As a preferred embodiment of the present invention, the inner sides of the fitting margin sealing ring 1 and the fitting margin sealing ring 2 are fixedly connected with support ring ribs, and the support ring ribs are located inside the fitting margin sealing ring groove.

[0009] As a preferred embodiment of the present invention, a reinforcement rib group is fixedly connected to the bottom of the upper dredging pipe surface, and the bottom of the reinforcement rib group is fixedly connected to the top of the fixed flange.

[0010] As a preferred embodiment of the present invention, an extension sleeve is fixedly connected to the bottom of the movable flange, and the extension sleeve is located on the surface of the lower dredging pipe.

[0011] As a preferred embodiment of the present invention, a reinforcement ring is fixedly connected to the surface of the extension sleeve, and the top of the reinforcement ring is fixedly connected to the bottom of the movable flange.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The utility model seals the fixed flange and the movable flange through the main sealing ring, and performs secondary sealing on the fixed flange and the movable flange by cooperating with the surplus sealing ring groove and cooperating with surplus sealing ring 1, cooperating with surplus sealing ring 2 and the sealing rubber ring. The space inside the surplus sealing ring groove can be used to seal the fixed flange and the movable flange that are not fully aligned. Through the cooperation of the positioning groove, the surplus movable sealing ring is pushed to move to the appropriate position inside the surplus movable sealing ring groove. The positioning groove and the surplus movable sealing ring can form a third sealing measure. There are three sealing measures between the movable flange and the fixed flange, which improves the sealing performance of the live flange dredging pipe.

[0014] 2. The utility model provides a leak-proof protection structure, which can enhance the sealing effect between the fixed flange and the movable flange, thereby preventing the fixed flange and the movable flange from leaking liquid, which would cause the fixed flange and the movable flange to malfunction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a three-dimensional cross-sectional view of the movable flange of the utility model;

[0017] Figure 3 For this utility model Figure 2 A in the middle shows the enlarged structure diagram;

[0018] Figure 4 For this utility model Figure 2 Enlarged structural diagram at point B in the middle.

[0019] In the figure: 1. Upper dredging pipe; 2. Fixed flange; 3. Lower dredging pipe; 4. Flexible flange; 5. Matching margin sealing ring groove; 6. Matching margin sealing ring 1; 7. Matching margin sealing ring 2; 8. Sealing rubber ring; 9. Main sealing ring; 10. Leakage prevention protection structure; 101. Positioning groove; 102. Margin movable sealing ring groove; 103. Margin movable sealing ring; 11. Sealing ring; 12. Support ring rib; 13. Reinforcement rib group; 14. Extension sleeve; 15. Reinforcement ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 4 As shown, the live flange dredging pipe provided by the utility model includes an upper dredging pipe 1, the bottom of the surface of the upper dredging pipe 1 is fixedly connected with a fixed flange 2, the bottom of the upper dredging pipe 1 is provided with a lower dredging pipe 3, the top of the surface of the lower dredging pipe 3 is sleeved with a live flange 4, the bottom of the fixed flange 2 is provided with a matching margin sealing ring groove 5, the interior of the matching margin sealing ring groove 5 is provided with a matching margin sealing ring 1 6, the outer side of the matching margin sealing ring 1 6 is provided with a matching margin sealing ring 2 7, the bottoms of the matching margin sealing ring 1 6 and the matching margin sealing ring 2 7 are both fixedly connected to the top of the live flange 4, the tops of the matching margin sealing ring 1 6 and the matching margin sealing ring 2 7 are both fixedly connected with a sealing rubber ring 8, the surface of the sealing rubber ring 8 is in contact with the inner wall of the matching margin sealing ring groove 5, the bottom of the fixed flange 2 is provided with a main sealing ring 9, the bottom of the main sealing ring 9 is in contact with the top of the live flange 4, and the bottom of the fixed flange 2 is provided with a leakage prevention protection structure 10.

[0022] refer to Figure 4The leakage prevention protection structure 10 includes a positioning groove 101, which is opened at the bottom of the fixed flange 2, and a residual movable sealing ring groove 102 is opened on the top of the movable flange 4. The residual movable sealing ring groove 102 is internally slidably connected with a residual movable sealing ring 103, and the top of the residual movable sealing ring 103 contacts the inner wall of the positioning groove 101.

[0023] As a technical optimization solution of the present invention, by setting up a leak-proof protection structure 10, the sealing effect between the fixed flange 2 and the movable flange 4 can be strengthened and increased, thereby preventing the fixed flange 2 and the movable flange 4 from leaking liquid, which would cause the fixed flange 2 and the movable flange 4 to fail to work normally.

[0024] refer to Figure 4 The surface of the residual movable sealing ring 103 is fixedly connected with the sealing ring 11 , and the surface of the sealing ring 11 contacts the inner wall of the residual movable sealing ring groove 102 .

[0025] As a technical optimization solution of the present invention, by setting the sealing ring 11, the residual movable sealing ring groove 102 can be encrypted, thereby preventing material from entering the residual movable sealing ring groove 102 during use, and improving the anti-blocking effect of the residual movable sealing ring groove 102.

[0026] refer to Figure 3 The inner sides of the matching allowance sealing ring 1 6 and the matching allowance sealing ring 2 7 are fixedly connected with a support ring rib 12 , and the support ring rib 12 is located inside the matching allowance sealing ring groove 5 .

[0027] As a technical optimization solution of the present invention, by setting the supporting ring rib 12, the structural strength of the matching margin sealing ring 1 6 and the matching margin sealing ring 2 7 can be strengthened, thereby preventing the matching margin sealing ring 1 6 and the matching margin sealing ring 2 7 from being deformed during long-term use, which causes the matching margin sealing ring 1 6 and the matching margin sealing ring 2 7 to be unable to be used normally, thereby improving the use stability of the matching margin sealing ring 1 6 and the matching margin sealing ring 2 7.

[0028] refer to Figure 3 The bottom of the upper dredging pipe 1 is fixedly connected to a reinforcement rib group 13 , and the bottom of the reinforcement rib group 13 is fixedly connected to the top of the fixed flange 2 .

[0029] As a technical optimization solution of the present invention, by setting a reinforcing rib group 13, the connection between the surface of the upper dredging pipe 1 and the fixed flange 2 can be reinforced, thereby avoiding breakage during use of the surface of the upper dredging pipe 1 and the fixed flange 2, preventing the surface of the upper dredging pipe 1 and the fixed flange 2 from failing to cooperate, and improving the use effect of the surface of the upper dredging pipe 1 and the fixed flange 2.

[0030] refer to Figure 2 The bottom of the living flange 4 is fixedly connected with an extension sleeve 14, and the extension sleeve 14 is located on the surface of the lower dredging pipe 3.

[0031] As a technical optimization solution of the present invention, by setting the extension sleeve 14, the sliding of the movable flange 4 can be stabilized, avoiding shaking of the movable flange 4 during sliding movement, causing the movable flange 4 to loosen, and improving the sliding stability of the movable flange 4.

[0032] refer to Figure 2 A reinforcement ring 15 is fixedly connected to the surface of the extension sleeve 14 , and the top of the reinforcement ring 15 is fixedly connected to the bottom of the movable flange 4 .

[0033] As a technical optimization solution of the present invention, by setting a reinforcement ring 15, the connection between the extension sleeve 14 and the movable flange 4 can be reinforced, thereby preventing the extension sleeve 14 and the movable flange 4 from breaking during use, preventing the extension sleeve 14 and the movable flange 4 from being unable to cooperate, and improving the use effect of the extension sleeve 14 and the movable flange 4.

[0034] The working principle and usage process of the utility model: when in use, after the fixed flange 2 and the movable flange 4 are installed, the fixed flange 2 and the movable flange 4 are sealed by the main sealing ring 9, and the remaining sealing ring groove 5 and the remaining sealing ring 1 6, the remaining sealing ring 2 7 and the sealing rubber ring 8 are matched to perform secondary sealing on the fixed flange 2 and the movable flange 4. The space inside the matching remaining sealing ring groove 5 can be used to seal the fixed flange 2 and the movable flange 4 that are not installed in complete alignment. Through the cooperation of the positioning groove 101, the remaining movable sealing ring 103 is pushed to move to a suitable position inside the remaining movable sealing ring groove 102. The positioning groove 101 and the remaining movable sealing ring 103 can form a third sealing measure.

[0035] To sum up: the live flange dredging pipe, through the coordinated use of the upper dredging pipe 1, the fixed flange 2, the lower dredging pipe 3, the live flange 4, the matching margin sealing ring groove 5, the matching margin sealing ring 1 6, the matching margin sealing ring 2 7, the sealing rubber ring 8, the main sealing ring 9 and the leakage-proof protection structure 10, solves the problem that the live flange is better matched with the fixed flange, there is only one sealing rubber ring between the two for sealing, when the live flange is used for a long time, the sealing rubber ring will age, the live flange lacks leakage-proof measures, resulting in the leakage of liquid between the live flange and the fixed flange after the single sealing rubber ring ages, thereby reducing the sealing performance of the live flange dredging pipe.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A live flange dredging pipe, comprising an upper dredging pipe (1), characterized in that: The bottom of the upper dredging pipe (1) is fixedly connected with a fixed flange (2), the bottom of the upper dredging pipe (1) is provided with a lower dredging pipe (3), the top of the surface of the lower dredging pipe (3) is provided with a movable flange (4), the bottom of the fixed flange (2) is provided with a matching margin sealing ring groove (5), the inside of the matching margin sealing ring groove (5) is provided with a matching margin sealing ring 1 (6), the outside of the matching margin sealing ring 1 (6) is provided with a matching margin sealing ring 2 (7), the matching margin sealing ring 1 (6) and The bottom of the second matching allowance sealing ring (7) is fixedly connected to the top of the movable flange (4), the tops of the first matching allowance sealing ring (6) and the second matching allowance sealing ring (7) are fixedly connected with a sealing rubber ring (8), the surface of the sealing rubber ring (8) contacts the inner wall of the matching allowance sealing ring groove (5), the bottom of the fixed flange (2) is provided with a main sealing ring (9), the bottom of the main sealing ring (9) contacts the top of the movable flange (4), and the bottom of the fixed flange (2) is provided with a leak-proof protection structure (10).

2. The live flange dredging pipe according to claim 1, characterized in that: The leakage prevention protection structure (10) includes a positioning groove (101), the positioning groove (101) is opened at the bottom of the fixed flange (2), the top of the movable flange (4) is provided with a residual movable sealing ring groove (102), the interior of the residual movable sealing ring groove (102) is slidably connected to a residual movable sealing ring (103), and the top of the residual movable sealing ring (103) contacts the inner wall of the positioning groove (101).

3. The live flange dredging pipe according to claim 2, characterized in that: The surface of the residual movable sealing ring (103) is fixedly connected to a sealing ring (11), and the surface of the sealing ring (11) contacts the inner wall of the residual movable sealing ring groove (102).

4. The live flange dredging pipe according to claim 1, characterized in that: The inner sides of the first matching allowance sealing ring (6) and the second matching allowance sealing ring (7) are fixedly connected with a supporting ring rib (12), and the supporting ring rib (12) is located inside the matching allowance sealing ring groove (5).

5. The live flange dredging pipe according to claim 1, characterized in that: A reinforcement rib group (13) is fixedly connected to the bottom of the surface of the upper dredging pipe (1), and the bottom of the reinforcement rib group (13) is fixedly connected to the top of the fixed flange (2).

6. The live flange dredging pipe according to claim 1, characterized in that: An extension sleeve (14) is fixedly connected to the bottom of the movable flange (4), and the extension sleeve (14) is located on the surface of the lower dredging pipe (3).

7. The live flange dredging pipe according to claim 6, characterized in that: A reinforcement ring (15) is fixedly connected to the surface of the extension sleeve (14), and the top of the reinforcement ring (15) is fixedly connected to the bottom of the movable flange (4).

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