Winding type polyimide insulating sleeve

Abstract

The utility model discloses a winding type polyimide insulating sleeve which comprises a pipe body, fixing rings are fixedly connected to the positions, close to the left side and the right side, of an inner cavity of the pipe body, in the using process of the winding type polyimide insulating sleeve, the pipe body is arranged on the outer side of a pipeline to be protected in a sleeved mode, then the pipe body is kept immobile, and threaded rings are rotated, so that the pipeline to be protected is protected. The threaded ring moves towards the center of the pipe body under the action of external threads, the threaded ring drives the fixing block to move through the annular groove, the fixing block drives the pressing ring to move through the connecting rod, the pressing ring pushes the sealing ring to move, and due to the fact that the conical face is arranged on the inner side of the fixing ring, when the pressing ring pushes the sealing ring to move, the sealing ring is tightly attached to the pipeline. Compared with the prior art, the pipe body fixing device has the advantages that the operation of fixing the pipe body is simple, only the threaded ring needs to be rotated to push the sealing ring to be tightly attached to the pipeline, and the pipe body fixing device is convenient and fast to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of sleeves, in particular to a winding type polyimide insulating sleeve. Background Art

[0002] A sleeve, usually used in the basement of a building, is an iron ring used to protect pipes or facilitate pipe installation. The sleeves are classified into rigid sleeves, flexible waterproof sleeves, steel pipe sleeves, iron sheet sleeves, etc. The application of sleeves in modern engineering is very extensive. With the development of technology, there are also many types of sleeves. For example, the emergence of winding type polyimide insulating sleeves has greatly improved the service life of sleeves.

[0003] When installing the existing winding type polyimide insulating sleeve, it is generally sleeved at the joint of the pipe and fixed by bolts and clamps. Its sealing performance is poor. After long-term use, leakage and other phenomena are likely to occur at the sleeve. Content of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the utility model is to provide a winding type polyimide insulating sleeve.

[0005] One of the purposes of the utility model is realized by adopting the following technical scheme:

[0006] A winding type polyimide insulating sleeve includes a pipe body. Fixed rings are fixedly connected to both sides close to the inner cavity of the pipe body. A conical surface is arranged inside the fixed ring, and the conical surface faces away from the pipe body. A sealing ring is arranged inside the fixed ring. A pressing ring is arranged on the side of the sealing ring away from the fixed ring. A plurality of connecting rods are fixedly connected to the side of the pressing ring away from the sealing ring. One end of the connecting rod away from the pressing ring is fixedly connected to a fixed block. External threads are opened at both ends close to the outer edge of the fixed ring. Threaded rings are sleeved at both ends close to the outer edge of the fixed ring. An annular groove is opened on the outer side of the threaded ring. The cross section of the connecting rod is L-shaped, and the four connecting rods are arranged in an annular array.

[0007] Further, the threaded ring and the external thread are mutually matched, and the threaded ring and the external thread are in threaded connection.

[0008] Further, the fixed block is movably inserted into the inner cavity of the annular groove, and the fixed block and the annular groove are mutually matched.

[0009] Further, the outer edge of the pressing ring is conical, and the pressing ring and the fixed ring are mutually matched.

[0010] Further, the outer diameter of the periphery of the sealing ring is greater than the inner diameter of the pressing ring, and the outer side of the sealing ring is mutually attached to the inner side of the fixed ring.

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

[0012] In the process of using a winding type polyimide insulating sleeve of the present utility model, the pipe body is sleeved outside the pipeline to be protected, and then the pipe body is kept stationary while the threaded ring is rotated. Under the action of the external thread, the threaded ring moves towards the center of the pipe body. The threaded ring drives the fixed block to move through the annular groove, and the fixed block drives the pressing ring to move through the connecting rod. The pressing ring pushes the sealing ring to move. Due to the conical surface provided on the inner side of the fixed ring, when the pressing ring pushes the sealing ring to move, the sealing ring fits tightly with the pipeline, thereby fixing the pipe body outside the pipeline, avoiding phenomena such as leakage, improving its use tightness. Compared with the prior art, the operation of fixing the pipe body of this device is simple, only need to rotate the threaded ring to push the sealing ring to fit tightly with the pipeline, and the assembly is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a perspective view of the present utility model;

[0014] Figure 2 is a front view of the present utility model;

[0015] Figure 3 is a front sectional view of the present utility model;

[0016] Figure 4 is the present utility model Figure 3 an enlarged view of part A in;

[0017] Figure 5 is a front perspective view of the external thread of the component of the present utility model;

[0018] Figure 6 is a front perspective view of the threaded ring of the component of the present utility model;

[0019] Figure 7 is the present utility model Figure 5 exploded view of;

[0020] Figure 8 is a front view of the pressing ring of the component of the present utility model;

[0021] Figure 9 is a front perspective view of the fixed ring of the component of the present utility model;

[0022] Figure 10 is the present utility model Figure 9 exploded view of.

[0023] Reference numerals in the figures: 1, pipe body; 2, fixed ring; 3, sealing ring; 4, pressing ring; 5, connecting rod; 6, fixed block; 7, threaded ring; 8, annular groove; 9, external thread. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figure 1-10 , the present invention provides a technical solution: a winding type polyimide insulating sleeve, including a tube body 1. Fixed rings 2 are fixedly connected to both sides near the inner cavity of the tube body 1. A conical surface is provided inside the fixed ring 2, and the conical surface faces away from the tube body 1. A sealing ring 3 is provided inside the fixed ring 2. A pressing ring 4 is provided on the side of the sealing ring 3 away from the fixed ring 2. A plurality of connecting rods 5 are fixedly connected to the side of the pressing ring 4 away from the sealing ring 3. One end of the connecting rod 5 away from the pressing ring 4 is fixedly connected to a fixed block 6;

[0026] External threads 9 are provided at both ends near the outer edge of the fixed ring 2. A threaded ring 7 is sleeved on both ends near the outer edge of the fixed ring 2. An annular groove 8 is provided on the outer side of the threaded ring 7. The cross-section of the connecting rod 5 is L-shaped. The four connecting rods 5 are arranged in an annular array. The threaded ring 7 matches the external threads 9, and the threaded ring 7 is threadedly connected to the external threads 9. The fixed block 6 is movably inserted into the inner cavity of the annular groove 8, and the fixed block 6 matches the annular groove 8. The outer edge of the pressing ring 4 is conical, and the pressing ring 4 matches the fixed ring 2. The outer diameter of the sealing ring 3 is larger than the inner diameter of the pressing ring 4, and the outer side of the sealing ring 3 is in close contact with the inner side of the fixed ring 2.

[0027] Working principle: For the winding type polyimide insulating sleeve of the present invention, during use, the tube body 1 is sleeved on the outer side of the pipeline to be protected. Then, keeping the tube body 1 stationary, the threaded ring 7 is rotated. Under the action of the external threads 9, the threaded ring 7 moves towards the center of the tube body 1. The threaded ring 7 drives the fixed block 6 to move through the annular groove 8. The fixed block 6 drives the pressing ring 4 to move through the connecting rod 5. The pressing ring 4 pushes the sealing ring 3 to move. Due to the conical surface provided inside the fixed ring 2, when the pressing ring 4 pushes the sealing ring 3 to move, the sealing ring 3 is in close contact with the pipeline, so that the tube body 1 is fixed on the outer side of the pipeline, thus avoiding phenomena such as leakage, improving its use sealing performance. Compared with the prior art, the operation of fixing the tube body 1 of this device is simple, only need to rotate the threaded ring 7 to push the sealing ring 3 to be in close contact with the pipeline, and the assembly is convenient.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0030] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0032] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0033] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A winding polyimide insulating sleeve, comprising a tube body (1), characterized in that: On both sides near the left and right of the inner cavity of the pipe body (1), there are fixedly connected fixing rings (2). The inner side of the fixing ring (2) is provided with a conical surface, and the conical surface faces away from the pipe body (1). A sealing ring (3) is provided on the inner side of the fixing ring (2). On the side of the sealing ring (3) away from the fixing ring (2), there is a pressing ring (4). On the side of the pressing ring (4) away from the sealing ring (3), several connecting rods (5) are fixedly connected. One end of the connecting rod (5) away from the pressing ring (4) is fixedly connected with a fixing block (6). External threads (9) are provided at both ends near the outer edge of the fixing ring (2). A threaded ring (7) is sleeved on the outer edge near both ends of the fixing ring (2). An annular groove (8) is provided on the outer side of the threaded ring (7). The cross-section of the connecting rod (5) is L-shaped, and the four connecting rods (5) are arranged in an annular array.

2. The winding polyimide insulating sleeve according to claim 1, wherein: The threaded ring (7) and the external thread (9) are mutually matched, and the threaded ring (7) and the external thread (9) are in threaded connection.

3. The wound polyimide insulating sleeve according to claim 1, wherein: The fixing block (6) is movably inserted into the inner cavity of the annular groove (8), and the fixing block (6) and the annular groove (8) are mutually matched.

4. The wound polyimide insulating sleeve according to claim 1, characterized in that: The outer edge of the pressing ring (4) is conically arranged, and the pressing ring (4) and the fixing ring (2) are mutually matched.

5. The winding polyimide insulating sleeve according to claim 1, characterized in that: The outer diameter of the periphery of the sealing ring (3) is larger than the inner diameter of the pressing ring (4), and the outer side of the sealing ring (3) is mutually attached to the inner side of the fixing ring (2).

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