CN-224229500-U - Flange protective sleeve

Abstract

The utility model relates to a flange protection sleeve, which comprises a sleeve body (1) provided with an opening and closing opening and in a cylindrical shape, wherein two skirt edges (2) which are tightened inwards in radial direction are symmetrically connected at the upper end opening and the lower end opening of the sleeve body (1), the middle part of the skirt edges (2) are enclosed to form an axle opening (3), a first connecting component (4) is arranged at the opening and closing opening of the sleeve body (1) and used for connecting or separating two ends of the opening and closing opening of the sleeve body (1), and tightening belts (6) are arranged at the edge of the axle opening (3) of an inner ring of the skirt edges (2) and used for shrinking and fastening the axle opening (3) on pipelines at two sides of the flange. The utility model has the advantages of simple structure, good protective performance, good universality, simple and convenient operation and low cost.

Inventors

• WU WEI
• HE SIYANG

Assignees

• 江苏科强新材料股份有限公司

Dates

Publication Date

20260512

Application Date

20250527

Claims (6)

1. 1. A flange protection sleeve comprises a sleeve body (1) which is provided with an opening and is cylindrical, two skirt edges (2) which are tightened inwards in the radial direction are symmetrically connected to the upper port and the lower port of the sleeve body (1), and the middle of the skirt edges (2) is surrounded to form a shaft opening (3), and the flange protection sleeve is characterized in that a first connecting component (4) is arranged at the opening and closing position of the sleeve body (1) and used for connecting or separating two ends of the opening and closing opening of the sleeve body (1), and tightening belts (6) are arranged at the edges of the shaft opening (3) of an inner ring of the skirt edges (2) and used for shrinking and fastening the shaft opening (3) on pipelines at two sides of the flange.
2. 2. A flange protection sleeve according to claim 1, wherein a second connecting component (5) is arranged at the position of the skirt (2) corresponding to the opening and is used for connecting or separating two ends of the opening of the skirt (2).
3. 3. The flange protection sleeve according to claim 2, wherein the first connecting component (4) and the second connecting component (5) are magic tapes, and the hair surfaces and the hook surfaces of the magic tapes are respectively arranged on the inner surface and the outer surface of the two ends of the opening.
4. 4. The flange protection sleeve according to claim 1, wherein the edge of the shaft opening (3) is provided with a hemming channel (7), and the tightening strap (6) is slidably embedded in the hemming channel (7).
5. 5. The flange protection sleeve according to claim 1, wherein a flexible support rod (8) is arranged at the joint of the sleeve body (1) and the skirt (2).
6. 6. The flange protection sleeve according to claim 1, wherein the material of the sleeve body (1) and the skirt (2) is weather-resistant rubber.

Description

Flange protective sleeve Technical Field The utility model relates to a flange protection sleeve, and belongs to the technical field of pipeline flanges. Background The flange is a common pipeline connecting device, and the flange connection refers to detachable connection formed by mutually linking the flange, the gasket and the bolts as a group of combined sealing structures, and is widely applied to industries such as constructional engineering, urban water supply, chemical machinery and the like. Some pipelines in the oil gas industry are commonly connected with flanges, and the pipelines are easy to rust after daily sun-drying and rain-spraying due to the flange connection exposed to the external environment, inflammable and explosive oil gas exists in the pipelines, so that difficulties are increased for later maintenance and pipeline overhaul, and the existing flange protection sleeves are poor in protection performance or complex in structure, inconvenient to operate and high in cost, and the protection sleeves with different sizes are required for pipelines and flanges with different sizes, so that the universality is poor, and the large-scale application is not facilitated. Therefore, a flange protection sleeve with simple structure, good protection performance, good universality, simple and convenient operation and low cost is needed. Disclosure of Invention The utility model aims to overcome the defects and provide the flange protective sleeve which has the advantages of simple structure, good protective performance, good universality, simplicity and convenience in operation and low cost. The purpose of the utility model is realized in the following way: A flange protection sleeve comprises a sleeve body which is provided with an opening and a cylindrical shape, wherein two skirt rims which are tightened inwards in the radial direction are symmetrically connected to the upper port and the lower port of the sleeve body, the middle of each skirt rim is enclosed to form a shaft opening, a first connecting component is arranged at the opening and the closing of the sleeve body and used for connecting or separating two ends of the opening of the sleeve body, and a tightening belt is arranged at the edge of the shaft opening of an inner ring of each skirt rim and used for shrinking and fastening the shaft opening on pipelines at two sides of the flange. Further, a second connecting component is arranged at the position of the skirt edge corresponding to the opening and closing opening and is used for connecting or separating the two ends of the opening and closing opening of the skirt edge. Further, the first connecting component and the second connecting component are magic tapes, and the hair surfaces and the hook surfaces of the magic tapes are respectively arranged on the inner surfaces and the outer surfaces of the two ends of the opening and closing opening. Further, the edge of the shaft opening is provided with a hemming channel, and the tightening belt is slidably embedded in the hemming channel. Further, a flexible supporting rod is arranged at the joint of the sleeve body and the skirt edge. Furthermore, the material of the sleeve body and the skirt edge is weather-resistant rubber. Compared with the prior art, the utility model has the beneficial effects that: According to the utility model, the connecting assembly is arranged at the opening and closing position of the protective sleeve, the tightening belts are arranged at the shaft openings at the two sides to bind the shaft openings, the flange connection positioned in the inner cavity of the protective sleeve forms a closed protective space, air and water vapor circulation is isolated, the protective performance is improved, the protective device can adapt to pipelines with different specifications, the universality is good, the overall structure is simple, the operation is simple and convenient, and the cost is low. Drawings Fig. 1 is a schematic structural view of a flange protection sleeve according to the present utility model. Fig. 2 is a schematic view of a partial cross-sectional structure of a flange protection sleeve according to the present utility model. Wherein: The sleeve body 1, the skirt edge 2, the shaft opening 3, the first connecting component 4, the second connecting component 5, the tightening strap 6, the hemming channel 7 and the supporting rod 8. Detailed Description Referring to fig. 1-2, the flange protection sleeve comprises a sleeve body 1 which is provided with an opening and a cylindrical shape, wherein two skirt edges 2 which are tightened inwards in radial direction are symmetrically connected at the upper port and the lower port of the sleeve body 1, and the middle parts of the skirt edges 2 are enclosed to form a shaft opening 3, the sleeve body 1 and the skirt edges 2 are made of weather-resistant rubber materials, preferably butyl rubber, EPDM rubber, silicone rubber and the like, so that the service