A pipe protection sleeve facilitating maintenance

Abstract

The utility model provides a kind of pipeline protective sleeve convenient for overhaul, it is related to pipeline protective sleeve technical field, the utility model discloses heat insulation cotton, heat insulation cotton can be covered in the surface of pipeline, buffer and heat preservation can be carried out to pipeline surface using heat insulation cotton, the surface of heat insulation cotton is provided with waterproof plastic film, the waterproof plastic film is pasted on the surface of heat insulation cotton and carries out waterproof protection to pipeline surface, it can be connected by connecting portion between waterproof plastic film and ensure that heat insulation cotton bundle is fixed on the surface of pipeline, when adopting drawstring and magic tape connection, it can be completed disassembly by pulling apart magic tape, when adopting plastic strip and inserting rod connection, extrude heat insulation cotton to make wedge retract after pulling out inserting rod, it can be separated, entire overhaul process does not need to be assisted by professional tool, single person can operate, substantially shorten pipeline exposure time, reduce overhaul man-hour cost.

Description

Technical Field

[0001] This utility model relates to the field of pipe protection sleeve technology, and in particular to a pipe protection sleeve that is easy to inspect and maintain. Background Technology

[0002] In industrial production, municipal engineering, and civil construction, pipelines are core components for transporting water, gas, oil, and various chemical media. Their stable operation directly affects production efficiency and the supply of daily life. To prevent pipeline performance degradation or damage due to external environmental factors, protective sleeves are usually installed around the pipeline.

[0003] Most pipe protective sleeves on the market today use a basic structure of insulation cotton and outer protection. The connection method of most protective sleeves relies on wrapping tape. When the tape is used for fixing, the tape adheres tightly to the insulation cotton and the pipe surface. During maintenance, it is necessary to tear it off forcefully, which is not only time-consuming and laborious, but also easily leads to damage to the insulation cotton and fiber shedding, making it unusable. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pipe protection sleeve that is easy to inspect and maintain.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a pipe protective sleeve for easy maintenance, comprising thermal insulation cotton, which can be sleeved on the outer circumferential surface of the pipe, forming a buffer protection for the pipe surface through the flexible structure of the thermal insulation cotton, while simultaneously using the thermal insulation properties of the thermal insulation cotton to achieve pipe insulation; a waterproof plastic film is attached to the outer surface of the thermal insulation cotton, which covers the entire outer surface of the thermal insulation cotton, forming a waterproof protection for the pipe surface; the two free ends of the waterproof plastic film can be connected by a connecting part to stably bind the thermal insulation cotton to the pipe surface, thereby fixing the thermal insulation cotton.

[0006] Preferably, the connecting part includes an adhesive strip, which is integrally formed on one end of the waterproof plastic membrane, with the adhesive surface facing the inside of the waterproof plastic membrane. When the insulation cotton is wrapped around the outer surface of the pipe, the adhesive strip can adhere to the outer surface of the other end of the waterproof plastic membrane along the circumference of the waterproof plastic membrane, thereby fixing both ends of the waterproof plastic membrane. When it is necessary to disassemble and repair the pipe, the waterproof plastic membrane can be released by peeling off the adhesive strip along the adhesive surface, and then the insulation cotton can be removed to expose the pipe.

[0007] Preferably, the connecting part can also be a pull strap, which is arranged along the circumference of the insulation cotton, and both ends of the pull strap are fixedly connected with barbed hook and loop fasteners; when the insulation cotton is wrapped around the pipe surface, the barbed hook and loop fasteners at both ends of the pull strap can be respectively adhered to the outer surface of the two ends of the waterproof plastic film, so that the insulation cotton is tightly wrapped around the pipe surface; when the pipe needs to be inspected, the two ends of the waterproof plastic film are pulled in the opposite direction to detach the barbed hook and loop fasteners from the waterproof plastic film, so that the pull strap can be removed and the insulation cotton can be removed to expose the pipe.

[0008] Preferably, the outer surface of the waterproof plastic film is fixedly connected with a rough surface corresponding to the adhesion position of the hook and loop fastener. The area of ​​the rough surface is adapted to the adhesion area of ​​the hook and loop fastener. The hook and loop fastener can form a detachable adhesion with the rough surface. By adhering or detaching the hook and loop fastener from the rough surface, the pull strap can be detached, thereby facilitating the removal of the insulation cotton.

[0009] Preferably, the inner end of the hook and loop fastener is heat-fused to the end of the pull strap via a heat-melting point. The heat-melting points are distributed at intervals along the connection edge between the hook and loop fastener and the pull strap to ensure the stability of the connection between the hook and loop fastener and the pull strap.

[0010] Preferably, the connecting part can also be a plastic strip, and there are two plastic strips, which are respectively fixed at the two ends of the insulation cotton, and the length of the plastic strip is adapted to the perimeter of the ends of the insulation cotton; the two ends of the waterproof plastic film are respectively fixedly connected to the outer side wall of the corresponding plastic strip, and the two plastic strips are detachably assembled by inserting rods to fix the insulation cotton to the surface of the pipe.

[0011] Preferably, one end of the insert rod is fixedly connected to the inner wall of one of the plastic strips, and the axis of the insert rod is perpendicular to the length direction of the plastic strip; a corresponding insertion hole is provided on the other plastic strip, and the other end of the insert rod can be inserted into the insulation cotton along the axial direction of the insertion hole, forming an interference fit with the inner wall of the insulation cotton; when it is necessary to remove the insulation cotton, the insert rod is pulled outward along the axial direction of the insert rod, so that the insert rod is separated from the insertion hole and the insulation cotton, thereby separating the two plastic strips and removing the insulation cotton.

[0012] Preferably, the surface of the insertion rod has two radially distributed grooves; two wedges are slidably connected to the inside of the two grooves by sliders, and the outer ends of the wedges can extend out of the grooves; a spring is arranged radially between the two wedges, and the two ends of the spring are fixedly connected to the inner ends of the two wedges; the elastic force generated by the spring in its natural state can push the wedges to extend radially outward along the grooves, so that the wedges are pressed against the inside of the insulation cotton to prevent the insulation cotton from detaching along the pipe axis; when disassembly is required, the flexible insulation cotton is squeezed inward, and the squeezing force of the insulation cotton pushes the wedges to slide radially inward along the grooves and compress the spring until the wedges are completely retracted into the grooves. At this time, the insertion rod can be pulled out along the axis of the insertion rod.

[0013] Preferably, a positioning groove is provided inside the insulation cotton corresponding to the protruding position of the wedge block, along the radial direction of the insulation cotton; when the wedge block extends under the action of the spring force, the outer end of the wedge block can be embedded in the positioning groove, and the radial movement of the wedge block is restricted by the side wall of the positioning groove, thereby forming an axial fixation for the insertion rod and preventing the insertion rod from accidentally falling off.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the synergistic effect of thermal insulation cotton and waterproof plastic film achieves multiple protections for the pipeline. The flexible thermal insulation material of the thermal insulation cotton can buffer external impacts, prevent pipeline damage due to collisions and compression, and block the heat exchange between the medium inside the pipeline and the outside, reducing stress damage caused by sudden temperature changes. It is especially suitable for pipelines transporting high-temperature or low-temperature media. The waterproof plastic film tightly covers the outside of the thermal insulation cotton, which can completely isolate moisture and humidity, prevent corrosion of the outer wall of the pipeline, and at the same time prevent the thermal insulation performance of the thermal insulation cotton from decreasing after absorbing moisture. This fundamentally reduces pipeline failures caused by corrosion and temperature shock, and significantly extends the overall service life of the pipeline.

[0015] 2. In this utility model, when adhesive tape is used for connection, the protective cover can be removed simply by peeling off the adhesive tape. When pull strap and Velcro are used for connection, the Velcro can be pulled apart to complete the disassembly. When plastic strip is used for connection with the plug rod, the plug rod can be pulled out after squeezing the insulation cotton to retract the wedge. The entire maintenance process does not require the use of professional tools and can be operated by a single person, which greatly shortens the pipeline exposure time and reduces maintenance time and costs. At the same time, the insulation cotton, waterproof plastic film and other components are not easily damaged during disassembly and assembly and can be reused, reducing the replacement cost of the protective cover. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of the first embodiment of the present invention, which provides a pipe protective sleeve for easy maintenance; Figure 2 A three-dimensional structural diagram of a second embodiment of the present invention, which provides a pipe protective sleeve that is easy to inspect and maintain; Figure 3 A three-dimensional structural schematic diagram of a third embodiment of the present invention, which provides a pipe protective sleeve that is easy to inspect and maintain; Figure 4 This utility model proposes a pipe protective sleeve that facilitates maintenance. Figure 2 Enlarged view of point A; Figure 5 This utility model proposes a pipe protective sleeve that facilitates maintenance. Figure 3 Cross-sectional view at BB.

[0017] Illustrations: 1. Insulation cotton; 2. Waterproof plastic film; 3. Adhesive tape; 4. Textured surface; 5. Tight strap; 6. Hot melt point; 7. Spiked Velcro; 8. Plastic strip; 9. Insert rod; 10. Slide groove; 11. Spring; 12. Wedge; 13. Positioning groove; 14. Insertion hole. Detailed Implementation

[0018] like Figure 1-5 As shown, a pipe protection sleeve for easy maintenance includes insulation cotton 1, made of flexible heat-insulating material. In use, the insulation cotton 1 is fitted over the outer surface of the pipe. Its flexible structure conforms to the pipe surface, buffering against external impacts and preventing heat exchange between the pipe's internal medium and the external environment, thus achieving pipe insulation. A waterproof plastic membrane 2, made of waterproof plastic, is tightly adhered to the outer surface of the insulation cotton 1. Covering the entire outer surface of the insulation cotton 1, the membrane prevents external moisture from penetrating into the insulation cotton 1, thus avoiding corrosion caused by moisture contact with the pipe surface and protecting the insulation cotton 1 from moisture-induced insulation performance degradation. A connecting part is provided between the two free ends of the waterproof plastic membrane 2, fixing the two ends together and stably securing the insulation cotton 1 to the pipe surface, preventing it from falling off during use. Example 1, such as Figure 1As shown, when adhesive tape 3 is used at the connection, adhesive tape 3 is integrally formed at one end of the waterproof plastic membrane 2, with the adhesive surface of adhesive tape 3 facing the inside of the waterproof plastic membrane 2. This prevents adhesive tape 3 from sticking to other objects before the insulation cotton 1 wraps the pipe. After wrapping the insulation cotton 1 around the outer surface of the pipe, adjust the positions of the insulation cotton 1 and the waterproof plastic membrane 2 so that one end of the waterproof plastic membrane 2 with adhesive tape 3 is closer to the other end. Then, attach the adhesive surface of adhesive tape 3 to the outer surface of the other end of the waterproof plastic membrane 2. The adhesive force of adhesive tape 3 fixes both ends of the waterproof plastic membrane 2, thereby fixing the insulation cotton 1 to the pipe. When pipe maintenance is required, pinch the connection points at both ends of the waterproof plastic membrane 2 and slowly peel off adhesive tape 3 along the adhesive surface to separate the two ends of the waterproof plastic membrane 2. Then, the insulation cotton 1 can be removed from the pipe, exposing the pipe surface for maintenance.

[0019] Example 2, as Figure 2 and Figure 4 As shown, when the connecting part uses a pull strap 5, the pull strap 5 is set around the circumference of the insulation cotton 1. The material of the pull strap 5 is selected as a webbing material with certain strength and not easy to break. Both ends of the pull strap 5 are fixedly connected with barbed hook and loop fasteners 7 by sewing or gluing. On the outer surface of the waterproof plastic membrane 2, corresponding to the position where the barbed hook and loop fasteners 7 need to be adhered, a rough surface 4 is fixedly connected by gluing. The area of ​​the rough surface 4 is adapted to the adhesion area of ​​the barbed hook and loop fasteners 7 to ensure that the two can make full contact and generate sufficient adhesion. After the insulation cotton 1 is wrapped around the surface of the pipe, the pull strap 5 is wrapped around the outside of the waterproof plastic membrane 2, so that the barbed hook and loop fasteners 7 at both ends of the pull strap 5 are aligned with the rough surface 4 on the waterproof plastic membrane 2 and pressed. The adhesion between the barbed hook and loop fasteners 7 and the rough surface 4 will fix the pull strap 5, thereby making the insulation cotton 1 tightly wrapped around the surface of the pipe. When pipe maintenance is required, pinch the pull straps 5 at both ends of the waterproof plastic film 2 and gently pull the waterproof plastic film 2 in opposite directions to separate the hook and loop fasteners 7 from the rough side 4. Then remove the pull straps 5 and remove the insulation cotton 1 from the pipe to expose the pipe for maintenance.

[0020] Example 3, as Figure 3 and Figure 5As shown, when the connecting part uses plastic strips 8, two plastic strips 8 are provided. The two plastic strips 8 are fixed to the two ends of the insulation cotton 1 by adhesive bonding. The length of the plastic strip 8 is adapted to the circumference of the ends of the insulation cotton 1, ensuring that the plastic strip 8 can completely fit the edge of the ends of the insulation cotton 1. The two ends of the waterproof plastic film 2 are fixedly connected to the outer wall of the corresponding side plastic strip 8 by heat sealing or adhesive bonding, so that the waterproof plastic film 2 and the plastic strip 8 form a whole. In the two plastic strips 8, the inner wall of one plastic strip 8 is fixedly connected to the insertion rod 9 by welding. The axis of the insertion rod 9 is perpendicular to the length direction of the plastic strip 8. The other plastic strip 8 has an insertion hole 14 at the position corresponding to the insertion rod 9. The diameter of the insertion hole 14 is adapted to the diameter of the insertion rod 9. After wrapping the insulation cotton 1 around the pipe surface, push the two plastic strips 8 closer together, so that the free end of the insert rod 9 is inserted into the insulation cotton 1 along the axial direction of the insertion hole 14. An interference fit is formed between the insert rod 9 and the insulation cotton 1, thereby connecting and fixing the two plastic strips 8, and thus fixing the insulation cotton 1. Two symmetrically distributed sliding grooves 10 are opened radially on the surface of the insert rod 9. Each sliding groove 10 is equipped with a slider. The wedge 12 is slidably connected to the sliding groove 10 through the slider. The outer end of the wedge 12 can extend out of the sliding groove 10. A spring 11 is fixedly connected between the inner ends of the two wedges 12. The spring 11 is a metal spring with a certain elastic coefficient. When the spring 11 is in its natural state, it will generate an outward elastic force to push the wedge 12 outward along the radial direction of the sliding groove 10, so that the wedge 12 is pressed against the inside of the insulation cotton 1, preventing the insulation cotton 1 from moving axially in the pipe and detaching from the pipe. Inside the insulation cotton 1, a positioning groove 13 is provided radially along the position where the wedge 12 protrudes. When the wedge 12 extends under the elastic force of the spring 11, the outer end of the wedge 12 will be embedded in the positioning groove 13. The side wall of the positioning groove 13 can restrict the radial movement of the wedge 12, further fixing the insertion rod 9 axially and preventing the insertion rod 9 from accidentally dislodging from the insertion hole 14 during use. When it is necessary to disassemble the insulation cotton 1 for maintenance, the flexible insulation cotton 1 is squeezed inward by hand. After being squeezed, the insulation cotton 1 will generate inward pressure, which pushes the wedge 12 to slide inward along the radial direction of the slide groove 10, while compressing the spring 11, until the wedge 12 is completely retracted into the slide groove 10. At this time, the insertion rod 9 is no longer restricted by the wedge 12. The insertion rod 9 is pulled outward along the axial direction of the insertion rod 9, so that the insertion rod 9 is separated from the insertion hole 14 and the insulation cotton 1. The two plastic strips 8 are separated accordingly. Then the insulation cotton 1 can be removed from the pipe for maintenance.

[0021] Working principle: This easy-to-maintain pipe protection sleeve uses a layered structure to protect the pipe and facilitate maintenance. Its core working logic revolves around the realization of protective functions and detachable maintenance operations. In terms of protective functions, the insulation cotton 1 is set around the outer perimeter of the pipe, using its own flexibility to buffer external impacts, while relying on the heat insulation material to prevent heat exchange between the medium inside the pipe and the outside, achieving a dual function of buffering and heat preservation; the outer waterproof plastic film 2 tightly covers the insulation cotton 1, and the waterproof material blocks the penetration of water and moisture, avoiding pipe corrosion and performance degradation of the insulation cotton 1. The two work together to form basic protection for the pipe.

[0022] In terms of fixing and maintenance operations, the three connection parts achieve detachable fixing through different mechanical cooperation: When using adhesive tape 3 for connection, the adhesive force of adhesive tape 3 is used to fix both ends of the waterproof plastic film 2. When disassembling, the fixing is released by peeling off adhesive tape 3, which is simple and direct; when using pull strap 5 and Velcro for connection, the detachable adhesion characteristics of the barbed Velcro 7 and the rough surface 4 are used to fix by pressing and separate by pulling, which is convenient for quick assembly and disassembly; when using plastic strip 8 and plug 9 for connection, plug 9 is inserted into the insulation cotton 1 through interference fit, and the wedge 12 extends under the elastic force of spring 11 and is embedded in the positioning groove 13 to form a stable axial fixation. When disassembling, squeezing the insulation cotton 1 causes the wedge 12 to retract, and pulling out plug 9 separates the plastic strip 8. The overall structure, through the clear component cooperation relationship, not only ensures the fixing stability of the pipe protection sleeve during use, but also ensures quick disassembly during maintenance, meeting the needs of convenient maintenance. At the same time, the material selection and connection method of each component are clear and explicit, and those skilled in the art can realize the manufacture and use of the device based on this principle.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A pipe protective sleeve that is easy to inspect and maintain, comprising thermal insulation cotton (1), characterized in that: The insulation cotton (1) can be covered on the surface of the pipe. The insulation cotton (1) can buffer and insulate the surface of the pipe. A waterproof plastic film (2) is provided on the surface of the insulation cotton (1). The waterproof plastic film (2) is attached to the surface of the insulation cotton (1) to protect the surface of the pipe from water. The waterproof plastic films (2) can be connected by connecting parts to ensure that the insulation cotton (1) is fixed to the surface of the pipe.

2. The pipe protective sleeve for easy maintenance according to claim 1, characterized in that: The connecting part includes an adhesive (3), which is integrally formed on one end of the waterproof plastic film (2). When the insulation cotton (1) is wrapped around the surface of the pipe, the adhesive (3) located at one end of the waterproof plastic film (2) can be adhered to the other end of the waterproof plastic film (2) for fixation. When it is necessary to disassemble and repair the pipe, the insulation cotton (1) can be removed and the pipe exposed for repair simply by tearing off the adhesive.

3. The pipe protective sleeve for easy maintenance according to claim 1, characterized in that: The connecting part can also be a pull strap (5), wherein the two ends of the pull strap (5) are attached to the two ends of the waterproof plastic film (2) by means of the hook and loop fastener (7) to ensure that the insulation cotton (1) is wrapped on the surface of the pipe. When the pipe needs to be inspected, the hook and loop fastener (7) can be torn off to remove the insulation cotton (1) and expose the pipe.

4. The pipe protective sleeve for easy maintenance according to claim 3, characterized in that: The surface of the waterproof plastic film (2) is fixedly connected with a rough surface (4), wherein the rough surface (4) is adhered to the hook and loop fastener (7) to allow the pull strap (5) to be detachable for easy removal of the insulation cotton (1).

5. The pipe protective sleeve for easy maintenance according to claim 3 or 4, characterized in that: The hook and loop fastener (7) is heat-fused together with the pull strap (5) via a heat-melting point (6).

6. The pipe protective sleeve for easy maintenance according to claim 1, characterized in that: The connecting part can also be a plastic strip (8), wherein the plastic strip (8) is fixed at the two ends of the insulation cotton (1), and the waterproof plastic film (2) and the plastic strip (8) are fixed together, and the two plastic strips (8) are detachably assembled by means of a plug (9).

7. The pipe protective sleeve for easy maintenance according to claim 6, characterized in that: One end of the insert (9) is fixed to one of the plastic strips (8). The insert (9) is inserted into the insulation cotton (1) along the insertion hole (14) on the other plastic strip (8) and is press-fitted with it. The insulation cotton (1) can be removed by pulling out the insert (9).

8. The pipe protective sleeve for easy maintenance according to claim 7, characterized in that: The surface of the insertion rod (9) is provided with a groove (10), and a wedge (12) is slidably connected inside the groove (10). A spring (11) is fixedly connected between the two wedges (12). The spring (11) causes the wedges (12) to press against the inside of the insulation cotton (1) to prevent the insulation cotton (1) from falling out of the pipe. When disassembly is required, the wedges (12) can be squeezed on the surface of the flexible insulation cotton (1) to compress the spring (11) and then the insertion rod (9) can be pulled out.

9. The pipe protective sleeve for easy maintenance according to claim 8, characterized in that: The insulation cotton (1) has a positioning groove (13) inside, wherein the positioning groove (13) restricts the wedge (12) to fix the insertion rod (9).

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