Pressure leaking stoppage tool for valve cover

Abstract

The utility model discloses a valve cover pressure leaking stoppage tool which comprises a valve body and a valve cover, a second flange plate is fixed on the valve body, a first flange plate is fixed on the valve cover, and the first flange plate and the second flange plate are fixedly connected through a bolt. A reinforcing structure is arranged between the first flange plate and the second flange plate and used for reinforcing sealing between the first flange plate and the second flange plate. The reinforcing structure comprises a plurality of reinforcing columns fixed to the first flange plate and a plurality of limiting holes formed in the second flange plate, the reinforcing columns are movably inserted into the limiting holes, a plurality of embedded clamping grooves are formed in the surfaces of the reinforcing columns, and second sealing rings are connected to the embedded clamping grooves in an embedded and clamped mode. The valve cover pressure leaking stoppage tool solves the problems that an existing valve cover pressure leaking stoppage tool is poor in installation structure stability and insufficient in sealing performance.

Description

Technical Field

[0001] The utility model relates to the technical field of valve door cover leakage plugging under pressure, in particular to a valve door cover leakage plugging under pressure tool. Background Art

[0002] At present, when the valve door cover leaks during the production process, if the valve cannot be removed for maintenance, the leakage is generally rectified by welding the door cover. Specifically, the leaking surface of the valve door cover is welded as a whole, and then the connecting bolts of the door cover are welded to the flange surface to prevent leakage.

[0003] Patent CN201510959103.5 discloses a pressure-sealing tool for a valve door cover, which includes a sealing sleeve having an axial through hole surrounded by the inner wall of the sealing sleeve and a plurality of glue injection holes connecting the outer wall of the sealing sleeve with the axial through hole; and also includes a plurality of glue injection seals for sealing the glue injection holes after injecting the sealing glue, and the plurality of glue injection seals are detachably connected to the plurality of glue injection holes in a one-to-one correspondence.

[0004] However, the following defects and shortcomings exist in its specific implementation process: the two side pressure plates are connected by bolts, and the bolt connection is prone to loosening due to the impact and vibration of water flow after long-term use of the valve body, resulting in misalignment between the two side pressure plates and poor structural stability, resulting in insufficient sealing of the valve door cover after installation and low safety. For this reason, we propose a valve door cover pressure plugging tool. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a valve door cover pressure plugging tool, which solves the problems of poor structural stability and insufficient sealing during installation of the prior valve door cover.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a valve door cover pressure plugging tool, comprising a valve body and a valve door cover, the valve body is fixed with a second flange plate, the valve door cover is fixed with a first flange plate, the first flange plate and the second flange plate are fixedly connected by bolts;

[0007] A reinforcement structure is provided between the first flange plate and the second flange plate for reinforcing the seal between the first flange plate and the second flange plate;

[0008] The reinforcement structure includes a plurality of reinforcement columns fixed on the first flange plate and a plurality of limiting holes provided on the second flange plate, wherein the reinforcement columns are movably inserted into the limiting holes, a plurality of embedded card slots are provided on the surface of the reinforcement columns, and a second sealing ring is embedded and clamped on the embedded card slots;

[0009] The reinforcing column is provided with a glue injection structure for injecting glue into the limiting hole.

[0010] Preferably, a plurality of mounting holes are respectively formed on the first flange plate and the second flange plate, and the first flange plate and the second flange plate are fixedly connected by locking bolts in the mounting holes.

[0011] Preferably, a first sealing ring is embedded and installed in the gap between the first flange plate and the second flange plate, and the first sealing ring is provided with a through hole for the reinforcing column to pass through and a bolt installation hole.

[0012] Preferably, a plurality of the reinforcing columns are circumferentially distributed at equal angles on the first flange plate, a plurality of the limiting holes are circumferentially distributed at equal angles on the second flange plate, and the limiting holes and the reinforcing columns exist in pairs.

[0013] Preferably, a plurality of the embedding slots are arranged at equal intervals on the surface of the reinforcing column, the second sealing ring and the embedding slot exist in pairs, and the outer diameter of the second sealing ring is matched with the inner diameter of the limiting hole.

[0014] Preferably, the glue injection structure includes a first glue injection hole provided on the first flange plate and a second glue injection hole provided through the center axis of the reinforcing column, and the first glue injection hole is connected to the second glue injection hole.

[0015] Beneficial Effects

[0016] The utility model provides a valve cover pressure plugging tool. Compared with the prior art, it has the following beneficial effects:

[0017] 1. A valve door cover pressure plugging tool, the valve door cover and the valve body are fixedly connected by bolts of a first flange plate and a second flange plate, and a reinforcement structure is set, the reinforcement structure includes a reinforcement column, a limit hole, etc., and then the reinforcement column is clamped in the limit hole. After the first flange plate and the second flange plate are connected and installed, the first flange plate and the second flange plate can be limited to prevent the first flange plate and the second flange plate from being loosened and causing dislocation, resulting in insufficient sealing and leakage. At the same time, the reinforcement column can increase the overall structural strength, improve the anti-fracture ability, and reduce structural damage.

[0018] 2. This kind of valve door cover pressure plugging tool has multiple embedded slots on the reinforcing column, and the embedded slots are sleeved with a second sealing ring. After the reinforcing column is clamped in the limiting hole, the second sealing ring can seal the gap between the reinforcing column and the limiting hole to prevent the entry of external air and moisture, thereby ensuring the stability of the reinforcing column after installation. At the same time, a glue injection structure is arranged on the reinforcing column, and the glue injection structure includes a first glue injection hole and a second glue injection hole. Glue is injected into the gap between the reinforcing column and the limiting hole through the first glue injection hole and the second glue injection hole. After curing, the sealing between the first flange plate and the second flange plate can be improved, thereby further realizing the pressure plugging treatment of the valve door cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model after assembly;

[0020] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of the utility model from the first perspective;

[0021] Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the utility model from a second viewing angle;

[0022] Figure 4 For this utility model Figure 3 Schematic diagram of the partially enlarged structure.

[0023] In the figure: 1. valve body; 2. valve door cover; 3. first flange plate; 4. second flange plate; 5. first sealing ring; 6. reinforcement structure; 61. reinforcement column; 62. limiting hole; 63. embedded card slot; 64. second sealing ring; 7. glue injection structure; 71. first glue injection hole; 72. second glue injection hole. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4 , the utility model provides two technical solutions:

[0026] Embodiment 1:

[0027] A valve cover plugging tool under pressure, comprising a valve body 1 and a valve cover 2, wherein a second flange plate 4 is fixed to the valve body 1, a first flange plate 3 is fixed to the valve cover 2, and the first flange plate 3 and the second flange plate 4 are fixedly connected by bolts;

[0028] A reinforcement structure 6 is provided between the first flange plate 3 and the second flange plate 4 to reinforce the seal between the first flange plate 3 and the second flange plate 4;

[0029] The reinforcement structure 6 includes a plurality of reinforcement columns 61 fixed on the first flange plate 3 and a plurality of limiting holes 62 provided on the second flange plate 4. The reinforcement columns 61 are movably inserted into the limiting holes 62. A plurality of embedded card slots 63 are provided on the surface of the reinforcement columns 61. A second sealing ring 64 is embedded and clamped on the embedded card slots 63.

[0030] A glue injection structure 7 is provided on the reinforcing column 61 for injecting glue into the limiting hole 62 .

[0031] Embodiment 2:

[0032] The main difference from the first embodiment is:

[0033] A valve door cover pressure plugging tool, a first flange plate 3, a second flange plate 4 are respectively provided with a plurality of mounting holes, the first flange plate 3, the second flange plate 4 are locked and fixedly connected by locking bolts in the mounting holes, and the first flange plate 3, the second flange plate 4 are fastened by the locking bolts; a first sealing ring 5 is also embedded and installed in the gap between the first flange plate 3, the second flange plate 4, the first sealing ring 5 is provided with a through hole for a reinforcing column 61 to pass through and a bolt mounting hole, and the sealing performance of the gap between the first flange plate 3, the second flange plate 4 is increased by the first sealing ring 5; a plurality of reinforcing columns 61 are circumferentially distributed at equal angles on the first flange plate 3, a plurality of limiting holes 62 are circumferentially distributed at equal angles on the second flange plate 4, the limiting holes 62 and the reinforcing columns 61 exist in pairs, and the reinforcing columns 61 are clamped in the limiting holes 62, and after the first flange plate 3 and the second flange plate 4 are connected and installed, the first flange plate 3, the second flange plate 4 can be limited, and the anti-static The bolts on the first flange plate 3 and the second flange plate 4 are prevented from loosening and causing misalignment; a plurality of embedded card slots 63 are arranged at equal intervals on the surface of the reinforcement column 61, and the second sealing ring 64 and the embedded card slot 63 exist in pairs. The outer diameter of the second sealing ring 64 is adapted to the inner diameter of the limiting hole 62. After the reinforcement column 61 is engaged with the inside of the limiting hole 62, the second sealing ring 64 can seal the gap between the reinforcement column 61 and the limiting hole 62 to prevent the entry of external air and moisture, thereby ensuring the stability of the reinforcement column 61 after installation; the glue injection structure 7 includes a first glue injection hole 71 arranged on the first flange plate 3 and a second glue injection hole 72 extending through the central axis of the reinforcement column 61. The first glue injection hole 71 is connected to the second glue injection hole 72. Glue is injected into the gap between the reinforcement column 61 and the limiting hole 62 through the first glue injection hole 71 and the second glue injection hole 72. After curing, the sealing between the first flange plate 3 and the second flange plate 4 can be improved, further realizing the pressure plugging treatment of the valve door cover.

[0034] When the valve door cover pressure plugging tool is used, the valve door cover 2 and the valve body 1 are fixedly connected by bolts of the first flange plate 3 and the second flange plate 4. By setting a reinforcement structure 6, the reinforcement structure 6 includes a reinforcement column 61, a limiting hole 62, etc., and then the reinforcement column 61 is clamped in the limiting hole 62. After the first flange plate 3 and the second flange plate 4 are connected and installed, the first flange plate 3 and the second flange plate 4 can be limited to prevent the bolts on the first flange plate 3 and the second flange plate 4 from loosening and causing misalignment, resulting in insufficient sealing and leakage. After the first flange plate 3 and the second flange plate 4 are fixedly connected by bolts, the gap along the outer periphery of the first flange plate 3 and the second flange plate 4 is welded to weld the leakage surface as a whole, and then the connecting bolts on the first flange plate 3 and the second flange plate 4 are also welded to the first flange plate 3 and the second flange plate 4. On the surface of the flange plate 4, leakage is prevented, so that the utility model can increase the overall structural strength, improve the anti-fracture ability and reduce structural damage through the reinforcement column 61; in addition, a plurality of embedded card slots 63 are provided on the reinforcement column 61, and a second sealing ring 64 is sleeved on the embedded card slot 63. After the reinforcement column 61 is clamped in the limiting hole 62, the gap between the reinforcement column 61 and the limiting hole 62 can be sealed through the second sealing ring 64 to prevent the entry of external air and moisture, thereby ensuring the stability of the reinforcement column 61 after installation. At the same time, a glue injection structure 7 is arranged on the reinforcement column 61, and the glue injection structure 7 includes a first glue injection hole 71 and a second glue injection hole 72. Glue is injected into the gap between the reinforcement column 61 and the limiting hole 62 through the first glue injection hole 71 and the second glue injection hole 72. After curing, the sealing between the first flange plate 3 and the second flange plate 4 can be improved, thereby further realizing the pressure plugging treatment of the valve door cover.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] 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.

[0037] 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 valve cover pressure plugging tool, comprising a valve body (1) and a valve cover (2), characterized in that: A second flange plate (4) is fixed on the valve body (1), a first flange plate (3) is fixed on the valve door cover (2), and the first flange plate (3) and the second flange plate (4) are fixedly connected by bolts; A reinforcement structure (6) is provided between the first flange plate (3) and the second flange plate (4) for reinforcing the seal between the first flange plate (3) and the second flange plate (4); The reinforcement structure (6) comprises a plurality of reinforcement columns (61) fixed on the first flange plate (3) and a plurality of limiting holes (62) provided on the second flange plate (4); the reinforcement columns (61) are movably inserted into the limiting holes (62); a plurality of embedded card slots (63) are provided on the surface of the reinforcement columns (61); a second sealing ring (64) is embedded and clamped on the embedded card slots (63); The reinforcing column (61) is provided with a glue injection structure (7) for injecting glue into the interior of the limiting hole (62).

2. A valve cover pressure plugging tool according to claim 1, characterized in that: The first flange plate (3) and the second flange plate (4) are respectively provided with a plurality of mounting holes, and the first flange plate (3) and the second flange plate (4) are locked and fixedly connected by locking bolts in the mounting holes.

3. A valve cover pressure plugging tool according to claim 1, characterized in that: A first sealing ring (5) is also embedded and installed in the gap between the first flange plate (3) and the second flange plate (4), and the first sealing ring (5) is provided with a through hole for the reinforcing column (61) to pass through and a bolt installation hole.

4. A valve cover pressure plugging tool according to claim 1, characterized in that: A plurality of the reinforcing columns (61) are equiangularly distributed on the first flange plate (3), a plurality of the limiting holes (62) are equiangularly distributed on the second flange plate (4), and the limiting holes (62) and the reinforcing columns (61) exist in pairs.

5. The valve cover pressure plugging tool according to claim 1, characterized in that: A plurality of the embedding slots (63) are arranged at equal intervals on the surface of the reinforcing column (61); the second sealing ring (64) and the embedding slot (63) exist in pairs; and the outer diameter of the second sealing ring (64) is matched to the inner diameter of the limiting hole (62).

6. The valve cover pressure plugging tool according to claim 1, characterized in that: The glue injection structure (7) comprises a first glue injection hole (71) provided on the first flange plate (3) and a second glue injection hole (72) penetrating and provided at the center axis of the reinforcing column (61), wherein the first glue injection hole (71) is communicated with the second glue injection hole (72).

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