Flange sealing cover with leakage-proof function

Abstract

The utility model relates to the technical field of flange sealing covers, and discloses a flange sealing cover with a leakage-proof function, which comprises a pipeline body, a fixing ring is welded outside the pipeline body, and a sealing mechanism is arranged on the right side of the fixing ring. According to the flange sealing cover with the leakage-proof function, by arranging the sealing mechanism, when a pipeline is sealed, a sealing ring body is firstly fixed to the left side of a fixing plate, then the fixing plate and a pipeline body are slowly screwed down along threads through a threaded ring, and the pipeline body is sealed for the first time through the sealing ring body and the threaded ring; then a rotating disc is rotated anticlockwise, a sleeve rod enables a push plate and a rubber ring to slide leftwards to the bottom through threads between the sleeve rod and a threaded rod for secondary sealing, finally, a cover plate and a fixing ring are fixed through a large bolt, the whole sealing mechanism is tightly connected with the sealing mechanism, double sealing treatment is achieved, water leakage can be reduced, and the sealing effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of flange sealing covers, in particular to a flange sealing cover with a leakage-proof function. Background Art

[0002] Flange cover is also called blind flange or pipe plug. It is a flange without a hole in the middle. It is used to seal the pipe opening. Its function is the same as that of the head and pipe cap, except that the blind plate seal is a detachable sealing device, and the seal of the head is not intended to be opened again. There are many types of sealing surfaces, including flat surface, convex surface, concave-convex surface, tongue and groove surface and ring connection surface.

[0003] After searching, the Chinese utility model with patent publication number CN217329019U is a hard-sealed flange cover, including a cover body and an outer shell, the cover body is embedded in the outer shell, a cooling cavity is formed between the cover body and the outer shell, the cover body is provided with a first mounting hole along the circumferential direction, the outer shell body is provided with a second mounting hole along the circumferential direction, a sealing sleeve is provided between the cover body and the outer shell, the sealing sleeve cooperates to pass through the first mounting hole and the second mounting hole, the sealing sleeve is suitable for sealing the cooling cavity, a liquid inlet and a liquid outlet are provided on the side of the outer shell, the liquid inlet and the liquid outlet are suitable for connecting to the cooling cavity, the flange cover has good heat dissipation capacity, can quickly absorb and dissipate heat, but the cover body and the outer shell in the patent are only fixed with bolts, although it has good heat dissipation capacity, the sealing effect of the structure is general, although there is a sealing ring for sealing, there is still a risk of water leakage, there is no secondary sealing protection measure, so a flange sealing cover with double sealing treatment, which can reduce water leakage and has good sealing effect and has a leak-proof function is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a flange sealing cover with a leak-proof function, which has the advantages of double sealing treatment, can reduce water leakage, and has a better sealing effect, thus solving the problem that there is still a risk of water leakage and there is no secondary sealing protection measure.

[0005] In order to achieve the above-mentioned double sealing treatment, reduce water leakage, and achieve a better sealing effect, the utility model provides the following technical solutions: a flange sealing cover with a leak-proof function, comprising a pipeline body, a fixing ring welded to the outside of the pipeline body, and a sealing mechanism is arranged on the right side of the fixing ring;

[0006] The sealing mechanism includes a cover plate, a protection box, a rotating disk, a threaded rod, a sleeve rod, a push plate, a fixed plate, a rubber ring and a sealing ring body. The cover plate is arranged on the right side of the fixed ring, the protection box is fixedly installed on the right side of the cover plate, a rotating disk is arranged inside the protection box, a threaded rod is fixedly installed on the left side of the rotating disk, a sleeve rod is arranged outside the threaded rod, a push plate is fixedly installed outside the sleeve rod, a fixed plate is arranged on the left side of the push plate, a rubber ring is fixedly installed on the inner wall of the push plate, and a sealing ring body is arranged on the left side of the fixed plate.

[0007] Furthermore, a threaded ring is fixedly installed on the left side of the fixing plate, and threads matching the threaded ring are arranged inside the pipe body, and the threaded ring is threadedly connected to the pipe body.

[0008] Furthermore, two fixing columns are fixedly installed on the left side of the cover plate, and the fixing plate is fixedly connected to the cover plate via the two fixing columns.

[0009] Furthermore, the sleeve rod is provided with threads inside which are matched with the threaded rod.

[0010] Furthermore, a bearing is fixedly installed inside the fixing plate, and the threaded rod is movably connected to the fixing plate via the bearing.

[0011] Furthermore, a small bolt is arranged on the outside of the protection box, and a small threaded hole adapted to the small bolt is opened on the outside of the rotating disk.

[0012] Furthermore, a large bolt is arranged on the outside of the fixing ring, and a large threaded hole matching with the large bolt is opened on the outside of the cover plate.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The flange sealing cover with a leak-proof function is provided with a sealing mechanism. When sealing a pipeline, the sealing ring body is fixed on the left side of a fixing plate, and then the fixing plate is tightened along the thread with the pipeline body through a threaded ring, and the pipeline body is sealed for the first time through the sealing ring body and the threaded ring. Then the rotating disk is rotated counterclockwise, and the sleeve rod makes the push plate and the rubber ring slide to the left to the bottom through the thread between the sleeve rod and the threaded rod for the second sealing. Finally, the cover plate and the fixing ring are fixed by a large bolt, so that the overall sealing mechanism is tightly connected. The sealing mechanism has double sealing treatment, can reduce water leakage, and has a good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0016] Figure 2 This is a front sectional view of the structure of the utility model;

[0017] Figure 3 The utility model structure Figure 2 Enlarged view of point A in the middle.

[0018] In the figure: 1. Pipe body; 2. Fixing ring; 3. Sealing mechanism; 301. Cover plate; 302. Protective box; 303. Rotating disk; 304. Threaded rod; 305. Sleeve rod; 306. Push plate; 307. Fixing plate; 308. Rubber ring; 309. Sealing ring body. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 In this embodiment, a flange sealing cover with a leak-proof function comprises a pipeline body 1, a fixing ring 2 is welded to the outside of the pipeline body 1, and a sealing mechanism 3 is arranged on the right side of the fixing ring 2;

[0021] The sealing mechanism 3 includes a cover plate 301, a protection box 302, a rotating disk 303, a threaded rod 304, a sleeve rod 305, a push plate 306, a fixed plate 307, a rubber ring 308 and a sealing ring body 309. The cover plate 301 is arranged on the right side of the fixed ring 2, the protection box 302 is fixedly installed on the right side of the cover plate 301, the rotating disk 303 is arranged inside the protection box 302, the threaded rod 304 is fixedly installed on the left side of the rotating disk 303, the sleeve rod 305 is arranged outside the threaded rod 304, the push plate 306 is fixedly installed outside the sleeve rod 305, the fixed plate 307 is arranged on the left side of the push plate 306, the rubber ring 308 is fixedly installed on the inner wall of the push plate 306, and the sealing ring body 309 is arranged on the left side of the fixed plate 307.

[0022] In the case implementation, a bearing is fixedly installed inside the fixed plate 307, and the threaded rod 304 is movably connected to the fixed plate 307 through the bearing. The bearing can enable the threaded rod 304 to rotate freely, and the threaded rod 304 drives the sleeve rod 305 to move horizontally left and right, which can enable the rubber ring 308 to clamp the sealing ring body 309, which is conducive to secondary sealing.

[0023] In the case implementation, a small bolt is provided on the outside of the protection box 302, and a small threaded hole adapted to the small bolt is opened on the outside of the rotating disk 303. The small bolt can threadably connect the rotating disk 303 to the protection box 302, thereby stopping the rotating disk 303 and preventing the rubber ring 308 from loosening, which is beneficial to sealing the pipeline body 1.

[0024] In the case implementation, a large bolt is provided on the outside of the fixing ring 2, and a large threaded hole compatible with the large bolt is opened on the outside of the cover plate 301. The large bolt can threadably connect the cover plate 301 and the fixing ring 2 after secondary sealing, thereby reducing the gap between the sealing ring body 309 and the pipe body 1, which is beneficial to sealing the pipe body 1.

[0025] When implementing, follow these steps:

[0026] 1) When sealing the pipeline, first fix the sealing ring body 309 on the left side of the fixing plate 307;

[0027] 2) Then the fixing plate 307 is tightened with the pipe body 1 along the thread through the threaded ring, and the pipe body 1 is sealed for the first time through the sealing ring body 309 and the threaded ring;

[0028] 3) Rotate the rotating disk 303 counterclockwise again, and the sleeve rod 305, through the thread between the sleeve rod 305 and the threaded rod 304, causes the push plate 306 and the rubber ring 308 to slide to the left to the bottom for the second sealing;

[0029] 4) Finally, the cover plate 301 is fixed to the fixing ring 2 by means of large bolts.

[0030] To sum up, the flange sealing cover with leak-proof function is provided with a sealing mechanism 3. When sealing the pipeline, the sealing ring body 309 is fixed to the left side of the fixing plate 307, and then the fixing plate 307 is tightened along the thread with the pipeline body 1 through the threaded ring, and the pipeline body 1 is sealed for the first time through the sealing ring body 309 and the threaded ring, and then the rotating disk 303 is rotated counterclockwise, and the sleeve rod 305 slides the push plate 306 and the rubber ring 308 to the left to the bottom through the thread between the threaded rod 304 for the second sealing, and finally the cover plate 301 is fixed to the fixing ring 2 through the large bolts, so that the overall sealing mechanism 3 is tightly connected to the sealing mechanism 3, with double sealing treatment, which can reduce water leakage and has a better sealing effect.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange sealing cover with a leak-proof function, comprising a pipeline body (1), characterized in that: A fixing ring (2) is welded to the outside of the pipe body (1), and a sealing mechanism (3) is provided on the right side of the fixing ring (2); The sealing mechanism (3) comprises a cover plate (301), a protection box (302), a rotating disk (303), a threaded rod (304), a sleeve rod (305), a push plate (306), a fixed plate (307), a rubber ring (308) and a sealing ring body (309); the cover plate (301) is arranged on the right side of the fixed ring (2); the protection box (302) is fixedly mounted on the right side of the cover plate (301); the rotating disk (303) is arranged inside the protection box (302); the threaded rod (304) is fixedly mounted on the left side of the rotating disk (303); the sleeve rod (305) is arranged outside the threaded rod (304); the push plate (306) is fixedly mounted outside the sleeve rod (305); the fixed plate (307) is arranged on the left side of the push plate (306); the rubber ring (308) is fixedly mounted on the inner wall of the push plate (306); and the sealing ring body (309) is arranged on the left side of the fixed plate (307).

2. The flange sealing cover with leakage-proof function according to claim 1, characterized in that: A threaded ring is fixedly mounted on the left side of the fixing plate (307), a thread matching the threaded ring is provided inside the pipe body (1), and the threaded ring is threadedly connected to the pipe body (1).

3. The flange sealing cover with leakage-proof function according to claim 1, characterized in that: Two fixing columns are fixedly mounted on the left side of the cover plate (301), and the fixing plate (307) is fixedly connected to the cover plate (301) via the two fixing columns.

4. The flange sealing cover with leak-proof function according to claim 1, characterized in that: The sleeve rod (305) is provided with a thread inside thereof that matches the threaded rod (304).

5. The flange sealing cover with leak-proof function according to claim 1, characterized in that: A bearing is fixedly installed inside the fixing plate (307), and the threaded rod (304) is movably connected to the fixing plate (307) via the bearing.

6. The flange sealing cover with leak-proof function according to claim 1, characterized in that: The outside of the protection box (302) is provided with a small bolt, and the outside of the rotating disk (303) is provided with a small threaded hole adapted to fit the small bolt.

7. The flange sealing cover with leak-proof function according to claim 1, characterized in that: The exterior of the fixing ring (2) is provided with a large bolt, and the exterior of the cover plate (301) is provided with a large threaded hole adapted to fit the large bolt.

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