Flange protective sleeve

Abstract

The utility model relates to a flange protection sleeve which comprises a sleeve body (1) which is provided with an opening and closing opening and is in a barrel shape, two skirt edges (2) which are tightened inwards in the radial direction are symmetrically connected to the upper end opening and the lower end opening of the sleeve body (1), a shaft opening (3) is defined by the middles of the skirt edges (2), and a first connecting assembly (4) is arranged at the opening and closing opening of the sleeve body (1) and used for connecting or separating the two ends of the opening and closing opening of the sleeve body (1). And a tightening belt (6) is arranged on the edge of the shaft opening (3) on the inner ring of the skirt edge (2) and is used for shrinking and fastening the shaft opening (3) on the pipelines on the two sides of the flange. The protection device is simple in structure, good in protection performance, good in universality, easy and convenient to operate and low in cost.

Description

Technical Field

[0001] This utility model relates to a flange protective sleeve, belonging to the field of pipeline flange technology. Background Technology

[0002] Flanges are a common pipe connection device. A flange connection refers to a detachable connection consisting of a flange, gasket, and bolts linked together as a sealing structure. It is widely used in construction engineering, urban water supply, chemical machinery, and other industries. Flange connections are frequently used in pipelines in the oil and gas industry. Because flange connections are exposed to the external environment, they are prone to corrosion after daily exposure to sun and rain. Furthermore, the presence of flammable and explosive oil and gas in pipelines increases the difficulty of later maintenance and pipeline repair. Existing flange protective sleeves either have poor protective performance, complex structures, inconvenient operation, and high costs. Different sizes of protective sleeves are required for different sizes of pipes and flanges, resulting in poor versatility and hindering large-scale application. Therefore, there is an urgent need for a flange protective sleeve that is simple in structure, has good protective performance, good versatility, is easy to operate, and is low in cost. Summary of the Invention

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a flange protection sleeve that is simple in structure, has good protective performance, good versatility, is easy and convenient to operate, and has low cost.

[0004] The purpose of this utility model is achieved as follows:

[0005] A flange protective sleeve includes a cylindrical sleeve body with an opening and closing port. Two skirts with radially inward tightening are symmetrically connected at the upper and lower ends of the sleeve body. The middle of the skirts forms a shaft opening. A first connecting component is provided at the opening and closing port of the sleeve body to connect or separate the two ends of the opening and closing port of the sleeve body. A tightening band is provided at the edge of the shaft opening on the inner ring of the skirt to shrink the shaft opening and fasten it to the pipes on both sides of the flange.

[0006] Furthermore, a second connecting component is provided at the corresponding opening of the skirt hem to connect or separate the two ends of the skirt hem opening.

[0007] Furthermore, the first connecting component and the second connecting component are Velcro, with the hook and loop sides of the Velcro respectively disposed on the inner and outer surfaces of the opening and closing ends.

[0008] Furthermore, the edge of the shaft opening is provided with a rolled edge channel, and the tightening band is slidably embedded in the rolled edge channel.

[0009] Furthermore, a flexible support rod is provided at the connection between the sleeve body and the skirt.

[0010] Furthermore, both the body and the skirt are made of weather-resistant rubber.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model provides a connecting component at the opening and closing of the protective sleeve, and tightening straps at both ends of the shaft opening to secure the shaft opening. This creates a sealed protective space for the flange connection located inside the protective sleeve, isolating it from air and water vapor flow, thus improving protective performance. It can adapt to pipes of different specifications, has good versatility, a simple overall structure, is easy and convenient to operate, and is low in cost. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a flange protective sleeve according to the present invention.

[0014] Figure 2 This is a partial cross-sectional structural diagram of a flange protective sleeve according to the present invention.

[0015] in:

[0016] 1. Body; 2. Skirt; 3. Shaft opening; 4. First connecting component; 5. Second connecting component; 6. Tightening strap; 7. Hemming channel; 8. Support rod. Detailed Implementation

[0017] See Figures 1-2 This utility model relates to a flange protective sleeve, comprising a sleeve body 1 with an opening and closing port and a cylindrical shape, and two skirts 2 that are radially tightened inward are symmetrically connected at the upper and lower ends of the sleeve body 1. The middle part of the skirts 2 forms a shaft opening 3. The sleeve body 1 and the skirts 2 are both made of weather-resistant rubber, preferably butyl rubber, EPDM rubber, silicone rubber, etc., to improve the service life of the protective sleeve, isolate moisture, and protect the flange connection.

[0018] A first connecting component 4 is provided at the opening of the sleeve body 1 to connect or separate the two ends of the opening of the sleeve body 1; a second connecting component 5 is provided at the corresponding opening of the skirt edge 2 to connect or separate the two ends of the opening of the skirt edge 2; the first connecting component 4 and the second connecting component 5 are Velcro, with the napped side and hook side of the Velcro respectively provided on the inner and outer surfaces of the two ends of the opening; Velcro connections are provided on both the sleeve body 1 and the skirt edge 2 to prevent moisture from entering the inner cavity of the protective sleeve from the openings on the front and sides, thus providing better protection.

[0019] Flexible support rods 8 are provided at the connection between the sleeve body 1 and the skirt 2. Two support rods 8 are sewn or glued to the connection between the upper and lower end faces of the sleeve body 1 and the upper and lower skirts 2 to form a structural support for the protective sleeve. At the same time, the flexibility of the support rods 8 can meet the deformation requirements of the sleeve body 1 during opening and closing. A rolled edge channel 7 is provided at the edge of the inner ring shaft opening 3 of the skirt 2. A tightening band 6 is slidably embedded in the rolled edge channel 7 to shrink the shaft opening 3 and fasten it to the pipes on both sides of the flange. It can adapt to pipes of various diameter specifications, has good versatility, and can reduce the air flow at the connection between the shaft opening 3 and the pipe, which can prevent water vapor from entering the protective sleeve along the pipe surface and improve the protective effect.

[0020] In use, first tear open the protective sleeve at the opening and fit it onto the flange connection. Then, use Velcro or other connecting components to connect the sleeve body 1 and the skirt 2, forming a protective space for the flange connection. Next, at the shaft openings 3 on both sides of the skirt 2, tie the corresponding ends of the tightening straps 6, and tighten the shaft openings 3 to the pipes on both sides of the flange, forming a sealed protective space to prevent moisture penetration. When disassembly is required, simply untie the tightening straps 6 and tear off the Velcro or other connecting components; the operation is simple and convenient. This flange protective sleeve has a simple overall structure, good protective performance, good versatility, simple and convenient operation, and low cost.

[0021] Additionally, it should be noted that the above-described specific implementation is merely an optimized solution of this patent, and any modifications or improvements made by those skilled in the art based on the above concept are within the scope of protection of this patent.

Claims

1. A flange protective sleeve, comprising a sleeve body (1) having an opening and closing port and being cylindrical, wherein two radially inwardly tapering skirts (2) are symmetrically connected at the upper and lower ends of the sleeve body (1), the skirts (2) forming a shaft opening (3) in the middle, characterized in that: A first connecting component (4) is provided at the opening of the sleeve (1) to connect or separate the two ends of the opening of the sleeve (1); a tightening band (6) is provided at the edge of the inner ring shaft opening (3) of the skirt (2) to shrink the shaft opening (3) and fasten it to the pipes on both sides of the flange.

2. The flange protective sleeve according to claim 1, characterized in that: A second connecting component (5) is provided at the opening of the skirt (2) to connect or separate the two ends of the opening of the skirt (2).

3. The flange protective sleeve according to claim 2, characterized in that: The first connecting component (4) and the second connecting component (5) are Velcro, with the hook and loop sides of the Velcro being respectively located on the inner and outer surfaces of the opening and closing ends.

4. The flange protective sleeve according to claim 1, characterized in that: The edge of the shaft opening (3) is provided with a rolled edge channel (7), and the tightening band (6) is slidably embedded in the rolled edge channel (7).

5. The flange protective sleeve according to claim 1, characterized in that: A flexible support rod (8) is provided at the connection between the sleeve (1) and the skirt (2).

6. The flange protective sleeve according to claim 1, characterized in that: The material of the sleeve (1) and the skirt (2) is weather-resistant rubber.

Images