A leakage-proof flange protective sleeve

Abstract

The utility model discloses a leakage-proof flange protective sleeve, which relates to the technical field of flange protection components, specifically a leakage-proof flange protective sleeve, including a protective sleeve body, the protective sleeve body is formed by two semi-annular protective sleeves, and a cavity for accommodating a flange is provided inside the protective sleeve body, the top and bottom of the protective sleeve body are respectively fixed with U-shaped grooves, and a screw clamp is installed inside the U-shaped groove, and the screw clamp can extend out of the U-shaped groove to contact the flange. The leakage-proof flange protective sleeve can position the flange protective sleeve on the flange by using the U-shaped groove and the screw clamp to avoid dislocation and offset; the protrusion can fill the gap between the flanges to prevent liquid leakage; the latch structure is simple in design, easy to disassemble, and occupies a small area, and the protective sleeve body can be quickly assembled, which is more conducive to on-site work.

Description

Technical Field

[0001] The utility model relates to the technical field of flange protection components, in particular to a leakage-proof flange protection sleeve. Background Art

[0002] Flange, also known as flange flange or flange. Flange is a part that connects pipes to each other and is used to connect pipe ends. It is also used on the inlet and outlet of equipment to connect two devices, such as reducer flange. A gasket is added between the two flanges and then fastened with bolts. In the actual production process, the gasket may leak liquid due to corrosion, wear and aging. Since the pipeline has a certain pressure, the liquid at the leakage point is often in the form of a jet, and the liquid may directly splash onto the operator, resulting in safety accidents and pollution to the environment.

[0003] In order to solve the problems existing in the prior art, people have conducted long-term exploration and proposed a variety of solutions. For example, a Chinese patent document discloses a flange protective sleeve [authorization announcement number is CN203836484U], which includes: a main body, including two semicircular simple parts, a sealing gasket is arranged on the inner side of the semi-cylindrical part; a first connecting member hinges the first end of the first semi-cylindrical part and the first end of the second semi-cylindrical part; a second connecting member fixedly connects the second end of the first semi-cylindrical part and the second end of the second semi-cylindrical part...

[0004] The above solution solves the problems existing in the prior art to a certain extent, but it still has the following defects: the gap between the flanges is too large and the size of a single sealing gasket is too small to fill the entire gap between the flanges; the flange protective cover cannot be fixed on the flange and is prone to displacement and misalignment.

[0005] Therefore, based on this, the applicant, based on many years of on-site work experience, proposed technical improvements that are in line with actual production and proposed a leakage-proof flange protective cover. Utility Model Content

[0006] The utility model provides a leakage-proof flange protective sleeve, which solves the problems raised by the above-mentioned background technology.

[0007] To achieve the above purpose, the utility model is implemented by the following technical solutions: a leakage-proof flange protective cover, comprising a protective cover body, the protective cover body is formed by two semi-annular protective covers, and a cavity for accommodating a flange is provided inside the protective cover body, a U-shaped groove is fixed on the top and bottom of the protective cover body respectively, and a screw clamp is installed inside the U-shaped groove, the screw clamp can extend out of the U-shaped groove and contact the flange, a protrusion is fixed in the middle of the inner cavity of the protective cover body, and a sealing gasket is provided on the upper and lower outer surfaces of the protrusion, and the sealing gasket can press the flange;

[0008] Two symmetrically distributed latch posts are fixed on the two semi-annular protective sleeves respectively, and a latch rod is inserted between the two opposite latch posts to fix the protective sleeve body so that the protective sleeve fixes the flange.

[0009] As a preferred anti-leakage flange protective cover of the present application, the two semi-annular protective cover contact parts on the protective cover body are provided with rubber layers. When the pin rod is inserted into the pin hole inside the pin column, the rubber layers are squeezed against each other to seal the gap between the two semi-annular protective cover brackets.

[0010] As a preferred anti-leakage flange protection cover of the present application, the screw clamp includes a cylindrical base and a clamping body. The cylindrical base can slide inside the U-shaped groove. The cylindrical base and the clamping body are fixedly connected, and the clamping body is hexagonal and hollow with a screw hole to be fixed on the hexagonal screw of the flange.

[0011] As a preferred anti-leakage flange protective sleeve of the present application, the opening of the U-shaped groove faces inward, and the inner cavity of the U-shaped groove allows the cylindrical base to slide inside it, and at the same time, the opening on the U-shaped groove is in contact with the clamping body.

[0012] As a preferred anti-leakage flange protective cover of the present application, the protrusion and the protective cover body can be integrally formed. When the protective cover body is put on the flange plate, the protrusion just forms a ring shape to fill the gap between the two flanges.

[0013] As a preferred anti-leakage flange protective cover of the present application, a spring can be provided in the middle of the latch rod to ensure that the protective cover body is tightly connected on the basis of being attached to the flange disk.

[0014] The utility model has the following beneficial effects:

[0015] 1. The anti-leakage flange protective cover can position the flange protective cover on the flange plate by using the U-shaped groove and the screw clamp to avoid dislocation and offset; the protrusion can fill the gap between the flange plates to prevent liquid leakage; the latch structure is simple in design, easy to disassemble, and occupies a small area. The protective cover body can be quickly assembled, which is more conducive to on-site work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0018] Figure 3 It is a partial structural diagram of the utility model;

[0019] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the latch column of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the latch rod of the utility model.

[0022] In the figure: 1. Protective cover body; 2. U-shaped groove; 3. Screw clamp; 31. Cylindrical base; 32. Clamp body; 4. Protrusion; 5. Latch column; 6. Latch rod; 7. Sealing gasket. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figures 1 to 6 The utility model provides a technical solution: a leakage-proof flange protective sleeve, comprising a protective sleeve body 1, wherein the protective sleeve body 1 is formed by two semi-annular protective sleeves, the diameter of which is slightly larger than the flange, which is conducive to fixing the flange, and a cavity for accommodating the flange is provided inside the protective sleeve body 1, and rubber can be arranged in the cavity to seal it to ensure the tightness of its contact, and U-shaped grooves 2 are fixed on the top and bottom of the protective sleeve body 1, respectively, and a screw clamping piece 3 is sleeved inside the U-shaped groove 2, and the screw clamping piece 3 can extend out of the U-shaped groove 2 to contact the flange, and the protective sleeve body 1 is provided with a U-shaped groove 2. A protrusion 4 is fixed in the middle of the cavity, and the protrusion 4 fills the gap between the two flanges to prevent liquid leakage, and a sealing gasket 7 is arranged on the upper and lower outer surfaces of the protrusion 4, and the sealing gasket 7 can press the flange; the sealing gasket 7 and the protrusion 4 embedded in the gap of the flange connection part have an axial width along the flange protection sleeve body 1 that is equal to or slightly larger than the width of the gap of the flange connection part, and an interference fit between the sealing gasket 7 and the protrusion 4 and the gap of the flange connection part can be achieved. The sealing gasket 7 and the protrusion 4 are made of acid and alkali resistant materials, such as plastic materials and polymer materials, so that the flange protection sleeve has good corrosion resistance.

[0025] The protective cover body 1 is a semi-annular protective cover with a certain thickness. Two identical semi-annular protective covers can be combined into a complete circle, which is sleeved on the outside of the flange and completely covers the flange. The protective cover body 1 with a certain thickness can withstand the impact of the solution in the pipeline, thereby preventing liquid splashing. Two identical semi-annular protective covers are combined to form a flange protective cover. No matter which half of the cover is damaged, it can be quickly replaced, reducing resource waste and improving utilization.

[0026] The side section of the U-shaped groove 2 is three-quarters of a circle, with a narrow mouth and a wide inside. The narrow mouth can prevent the screw clip from slipping out while enabling the clip to slide freely. However, the utility model is not limited to this, and the U-shaped groove can be elliptical or other arc-shaped.

[0027] Two symmetrically distributed latching posts 5 are fixed on the two semi-annular protective sleeves respectively, and a latching rod 6 is inserted between the two opposite latching posts 5 to fix the protective sleeve body 1 so that the protective sleeve fixes the flange.

[0028] As a preferred anti-leakage flange protective cover of the present application, the contact parts of the two semi-annular protective covers on the protective cover body 1 are provided with rubber layers. When the latch rod 6 is inserted into the latch hole inside the latch column 5, the rubber layers are squeezed against each other to seal the gap between the two semi-annular protective cover brackets.

[0029] As a preferred anti-leakage flange protection cover of the present application, the screw clamp 3 includes a cylindrical base 31 and a clamping body 32. The cylindrical base 31 can slide inside the U-shaped groove 2. The cylindrical base 31 and the clamping body 32 are fixedly connected, and the clamping body 32 is hexagonal and hollow with a screw hole to be fixed on the hexagonal screw of the flange.

[0030] The present invention is not limited thereto, the cylindrical base 31 may be ellipsoidal, the clamping body 32 may be teardrop-shaped, the middle of the clamping body 32 may be set as a circular hollow; or the clamping body 32 may be in the shape of a wrench; or the cylindrical base 31 and the clamping body 32 may be connected by a spring.

[0031] As a preferred anti-leakage flange protection cover of the present application, the opening of the U-shaped groove 2 faces inward, and the inner cavity of the U-shaped groove 2 allows the cylindrical base 31 to slide inside it. At the same time, the opening on the U-shaped groove 2 is in contact with the clamping body 32, which facilitates the sliding of the screw clamp 3 to locate the position of the flange screw, so as to further fix the flange protection cover, prevent it from shifting and misalignment, and play a buffering role when liquid splashes.

[0032] As a preferred anti-leakage flange protective cover of the present application, the protrusion 4 and the protective cover body 1 can be integrally formed. When the protective cover body 1 is put on the flange plate, the protrusion 4 just forms a ring to fill the gap between the two flanges.

[0033] As a preferred anti-leakage flange protective cover of the present application, a spring may be provided in the middle of the latch rod 6 to ensure that the protective cover body 1 is tightly connected on the basis of being attached to the flange disk.

[0034] Point-shaped, strip-shaped, or thread-shaped protrusions are added to the outside of the latch rod 6 to increase the friction between the latch rod 6 and the latch hole 5, thereby achieving an excellent sealing effect. The hole of the latch column and the latch rod may also adopt other structures that can achieve latch connection.

[0035] In summary, when the anti-leakage flange protective sleeve is assembled or working:

[0036] The following is a brief introduction to the installation process of the flange protective cover, taking a leakage-proof flange protective cover of the exemplary embodiment as an example. First, according to the number of screws on the flange, put the screw clamp 3 into the U-shaped groove 2 and slide it to a suitable position so that it can be put on the screws of the flange; then, according to the width of the gap between the flanges, embed the sealing gasket 7 of a suitable size into the groove of the protrusion 4; then, surround the protective cover body 1 on the connected flanges to form a cylindrical protective cover body 1. At this time, the cylindrical protective cover body 1 completely covers the flange connection part, and the protrusion 4 and the sealing gasket 7 are embedded in the gap of the flange; then, put the clamping body 32 of the screw clamp 3 on the screw; finally, the latch holes on the protective cover body 1 correspond one by one, and the latch rods 6 are respectively inserted into the latch columns 5 to achieve the fixed connection of the protective cover body 1, so that the installation of the flange protective cover is completed.

[0037] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. 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 expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0038] Although 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 leakage-proof flange protective sleeve, comprising a protective sleeve body (1), wherein the protective sleeve body (1) is formed by two semi-annular protective sleeves, and a cavity for accommodating a flange is provided inside the protective sleeve body (1), characterized in that: The top and bottom of the protective cover body (1) are respectively fixed with U-shaped grooves (2), and a screw clamp (3) is mounted inside the U-shaped groove (2), and the screw clamp (3) can extend out of the U-shaped groove (2) to contact the flange. A protrusion (4) is fixed in the middle of the inner cavity of the protective cover body (1), and sealing gaskets (7) are arranged on the upper and lower outer surfaces of the protrusion (4), and the sealing gasket (7) can press the flange. Two symmetrically distributed latching posts (5) are fixed on the two semi-annular protective sleeves respectively, and a latching rod (6) is inserted between the two opposing latching posts (5) to fix the protective sleeve body (1) so that the protective sleeve is fixed to the flange.

2. The anti-leakage flange protective sleeve according to claim 1, characterized in that: The contact parts of the two semi-annular protective sleeves on the protective sleeve body (1) are provided with rubber layers. When the latch rod (6) is inserted into the latch hole inside the latch column (5), the rubber layers are pressed against each other to seal the gap between the two semi-annular protective sleeve brackets.

3. The anti-leakage flange protective sleeve according to claim 1, characterized in that: The screw clamping member (3) comprises a cylindrical base (31) and a clamping body (32); the cylindrical base (31) can slide inside the U-shaped groove (2); the cylindrical base (31) and the clamping body (32) are fixedly connected; and the clamping body (32) is hexagonal and hollow with a screw hole so as to be sleeved on the hexagonal screw of the flange for fixing.

4. The anti-leakage flange protective sleeve according to claim 3, characterized in that: The opening of the U-shaped groove (2) faces inwards, and the inner cavity of the U-shaped groove (2) allows the cylindrical base (31) to slide inside it, while the opening on the U-shaped groove (2) and the clamping body (32) are in contact with each other.

5. The anti-leakage flange protective sleeve according to claim 1, characterized in that: The protrusion (4) and the protective sleeve body (1) can be integrally formed, and when the protective sleeve body (1) is sleeved on the flange, the protrusion (4) forms a ring shape to fill the gap between the two flanges.

6. The anti-leakage flange protective sleeve according to claim 1, characterized in that: A spring may be arranged in the middle of the latch rod (6).

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