A pipe protection sleeve that is easy and quick to assemble

CN224801270UActive Publication Date: 2026-09-25JIANGYIN SIRITE PETROLEUM MASCH MFG CO LTD
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Patent Information

Application Number
CN202522532986.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-28
Publication Date
2026-09-25
Estimated Expiration
2035-11-28

AI Technical Summary

Technical Problem

[0002]在工业生产、建筑水电安装、市政工程及民用管道铺设等领域,金属、塑料等材质的管道承担着流体输送、信号传导等核心功能,其中大量管道需长期暴露于户外日晒雨淋、地下潮湿环境或含有化学腐蚀性介质的工况中,易因外壁腐蚀、机械磨损或杂质侵入管道接口而缩短使用寿命,甚至引发泄漏、堵塞等安全隐患

Benefits of technology

本实用新型,通过连接套两侧环槽内的固定环与热缩保护套管内壁的定位圈精准配合,定位圈上的凸块与固定环的凹槽尺寸适配,卡接后能牢牢固定两段热缩保护套管,避免连接位置出现微小缝隙。同时连接套圆弧面上的稳定圈可填充连接套与热缩保护套管内壁间的空隙,杜绝空鼓现象,再配合热缩保护套管内壁的密封圈,全方位阻断水分、灰尘及化学介质的侵入路径,为管道提供严密的防护,有效避免管道因外界侵蚀而损坏,保障管道的正常使用寿命。

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Abstract

The utility model provides a kind of pipeline protection sleeve of convenient and fast assembly, it is related to heat shrink sleeve technical field, the utility model discloses two heat shrink protection sleeve, two the side of heat shrink protection sleeve close to each other is provided with connecting device, wherein connecting device is sealed with the help of connecting sleeve and locating ring to guarantee the stable connection between two heat shrink protection sleeve, the connecting device includes connecting sleeve, the circular arc surface of the both sides of connecting sleeve is respectively provided with ring groove, wherein the inner wall of ring groove is fixedly connected with fixed ring, wherein the circular arc surface of fixed ring is provided with several evenly circumferentially distributed recesses, and the inner wall of two heat shrink protection sleeve is respectively fixedly connected with locating ring, the two sections of heat shrink protection sleeve of the utility model when splicing combination is used, can better guarantee the stability of connecting position, not prone to tiny gap, cause moisture, dust and chemical medium to invade, to better realize protection effect and functionality.
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Description

Technical Field

[0001] This utility model relates to the field of heat shrink tubing technology, and in particular to a pipe protective sleeve that is easy and quick to assemble. Background Technology

[0002] In fields such as industrial production, building water and electricity installation, municipal engineering and civil pipeline laying, pipelines made of materials such as metal and plastic undertake core functions such as fluid transportation and signal transmission. Many of these pipelines are exposed to outdoor sun and rain, underground damp environments or working conditions containing chemically corrosive media for a long time. They are prone to shortening their service life due to external wall corrosion, mechanical wear or impurities entering the pipeline joints, and may even cause safety hazards such as leakage and blockage. Summary of the Invention

[0003] This utility model aims to solve the above-mentioned technical problems by proposing a pipe protective sleeve that is convenient and quick to assemble.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a pipe protection sleeve that is convenient and quick to assemble, wherein the heat shrinkable protective sleeve can be sleeved on the surface of the pipe for protection, including two heat shrinkable protective sleeves, and a connecting device is provided on the side of the two heat shrinkable protective sleeves that are close to each other, wherein the connecting device ensures a stable and sealed connection between the two heat shrinkable protective sleeves by means of a connecting sleeve and a positioning ring.

[0005] The effect achieved by the above components is as follows: when splicing two sections of heat shrinkable protective sleeve together to protect a thin pipe, firstly, the two sections of heat shrinkable protective sleeve are stably combined through the connecting device, then the heat shrinkable protective sleeve is placed on the pipe, and then heated with a heat source such as a hot air gun or soldering iron. The pipe is moved back and forth and rotated along the length of the heat shrinkable protective sleeve to make it shrink evenly with heat. After heating until the heat shrinkable sleeve is tightly attached to the pipe, it is allowed to cool completely.

[0006] Preferably, the connecting device includes a connecting sleeve, and annular grooves are respectively formed on the two arc surfaces of the connecting sleeve. A fixing ring is fixedly connected to the inner wall of the annular groove. A plurality of evenly circumferentially distributed grooves are formed on the arc surface of the fixing ring. A positioning ring is fixedly connected to the inner wall of the two heat-shrinkable protective sleeves. A plurality of evenly circumferentially distributed protrusions are provided on the inner wall of the positioning rings. The protrusions are adapted to the size of the grooves.

[0007] The effect achieved by the above components is that when the two heat-shrinkable protective sleeves are spliced ​​together, the connection position can be better stabilized, and tiny gaps are less likely to occur, which would lead to the intrusion of moisture, dust and chemical media, thereby achieving better protection and functionality.

[0008] Preferably, the connecting device further includes a stabilizing ring fitted onto the arc surface of the connecting sleeve, wherein the stabilizing ring includes measures for the flatness of the arc surface of the connecting sleeve. The effect achieved by the above components is as follows: by setting the stabilizing ring, after the positioning ring and the fixing ring are connected to each other, the middle arc surface of the connecting sleeve and the inner wall of the two heat shrink protective sleeves can be effectively filled, making it less likely for air bubbles to occur, and further ensuring the sealing and stability of the heat shrink protective sleeves.

[0009] Preferably, the connecting device further includes several connecting rods, and connecting grooves are respectively opened on the side of the two heat-shrinkable protective sleeves that are close to each other, wherein the connecting rods are inserted into the inner wall of the connecting grooves.

[0010] The effect achieved by the above components is that, through the setting of the connecting rod and the connecting groove, the two heat shrinkable protective sleeves can maintain a relatively stable relationship at the end that is in contact with each other, and it is not easy for one of the heat shrinkable protective sleeves to deflect abnormally.

[0011] Preferably, a connecting ring is fixedly connected to the surface of several connecting rods, wherein the connecting ring is engaged in the inner wall of the connecting groove.

[0012] The effect achieved by the above components is that, through the setting of the connecting ring, a certain connection relationship is formed between several connecting rods, which makes it more convenient to use and achieves a more stable and faster assembly and disassembly effect.

[0013] Preferably, the connecting device further includes a reinforcing ring installed on the inner wall of the arc surface of the two heat-shrinkable protective sleeves on the side away from each other, wherein the reinforcing ring improves the stability of the heat-shrinkable protective sleeves assembled on the pipe surface.

[0014] The effect achieved by the above components is as follows: by setting the reinforcing ring with silicone material, when the heat shrink protective sleeve shrinks and covers the surface of the pipe, the reinforcing ring will stably fit and press against the surface of the pipe, further increasing the friction, thus making it more stable and preventing abnormal slippage on both sides of the combined heat shrink protective sleeve, ensuring stable use.

[0015] Preferably, the connecting device further includes a sealing ring fixedly connected to the inner wall of the heat-shrinkable protective sleeve, and the sealing ring is located on one side of the reinforcing ring.

[0016] The effect achieved by the above components is that, by setting the reinforcing ring with sponge material, the reinforcing ring can fit better with the surface of the pipe when it is pressed, thereby further improving the sealing performance of both sides of the two heat-shrinkable protective sleeves.

[0017] The beneficial effects of this utility model are: This invention utilizes a precise fit between the fixing rings within the grooves on both sides of the connecting sleeve and the positioning rings on the inner wall of the heat-shrinkable protective sleeve. The protrusions on the positioning rings are sized to match the grooves on the fixing rings, ensuring a secure hold between the two heat-shrinkable protective sleeve sections and preventing even minor gaps at the connection point. Simultaneously, the stabilizing rings on the arc surface of the connecting sleeve fill the gap between the connecting sleeve and the inner wall of the heat-shrinkable protective sleeve, eliminating air pockets. Combined with the sealing rings on the inner wall of the heat-shrinkable protective sleeve, this comprehensively blocks the intrusion paths of moisture, dust, and chemical media, providing robust protection for the pipeline and effectively preventing damage from external corrosion, thus ensuring the pipeline's normal service life. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the heat-shrinkable protective sleeve of this utility model; Figure 3 This is a cross-sectional structural diagram of the heat-shrinkable protective sleeve of this utility model; Figure 4 This is a partial structural schematic diagram of the connecting device of this utility model; Figure 5 This is an exploded structural diagram of the connecting device of this utility model.

[0020] Legend: 1. Heat shrinkable protective sleeve; 2. Connecting device; 21. Connecting sleeve; 22. Annular groove; 23. Fixing ring; 24. Positioning ring; 25. Protrusion; 26. Groove; 27. Stabilizing ring; 28. Connecting ring; 29. ​​Connecting rod; 210. Connecting groove; 3. Reinforcing ring; 4. Sealing ring. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Figure 1 and Figure 2The pipe protection sleeve shown includes two heat-shrinkable protective sleeves 1. A connecting device 2 is provided on the side of the two heat-shrinkable protective sleeves 1 that is close to each other. The connecting device 2 ensures a stable and sealed connection between the two heat-shrinkable protective sleeves 1 by means of a connecting sleeve 21 and a positioning ring 24.

[0024] Figure 1 - Figure 5 The connecting device 2 shown includes a connecting sleeve 21. Annular grooves 22 are respectively formed on the arc surfaces of both sides of the connecting sleeve 21. A fixing ring 23 is fixedly connected to the inner wall of the annular groove 22. Several evenly distributed circumferential grooves 26 are formed on the arc surface of the fixing ring 23. Positioning rings 24 are fixedly connected to the inner walls of the two heat-shrinkable protective sleeves 1. Several evenly distributed circumferential protrusions 25 are provided on the inner wall of the positioning rings 24. The protrusions 25 are sized to match the grooves 26. When splicing the two heat-shrinkable protective sleeves 1 together to protect the thin pipe, first, the two fixing rings 23 are respectively engaged into the annular grooves 22 on both sides of the arc surface of the connecting sleeve 21. Then, the connecting sleeve 21 is slid onto the surface of the pipe, and then the two heat-shrinkable protective sleeves 1 are slid onto the pipe. The two heat-shrinkable protective sleeves 1 are placed on the pipe surface and on both sides of the connecting sleeve 21. They are in contact with each other and then heated with a heat source such as a hot air gun or soldering iron. The pipe is moved back and forth and rotated along the length of the heat-shrinkable protective sleeve 1 to make it shrink evenly. During the shrinkage process, the inner wall of the positioning ring 24, which is fixedly connected to the inner wall of the heat-shrinkable protective sleeve 1, will fit against the arc surface of the fixing ring 23. Several protrusions 25 on the inner wall of the positioning ring 24 will engage with several grooves 26 on the arc surface of the fixing ring 23 until the heat-shrinkable tube is heated to fit tightly against the pipe. Then it is allowed to cool completely. At this time, when the two heat-shrinkable protective sleeves are spliced ​​and combined, the connection position can be better guaranteed, and small gaps are less likely to occur, which will cause moisture, dust and chemical media to invade, thereby achieving better protection and functionality.

[0025] Figure 4 and Figure 5 The connecting device 2 shown also includes a stabilizing ring 27 fitted on the arc surface of the connecting sleeve 21. The stabilizing ring 27 includes the flatness of the arc surface of the connecting sleeve 21. By setting the stabilizing ring 27, after the positioning ring 24 and the fixing ring 23 are connected to each other, the middle arc surface of the connecting sleeve 21 and the inner wall of the two heat shrinkable protective sleeves 1 can be effectively filled, and it is not easy for air bubbles to occur, which further ensures the sealing and stability of the heat shrinkable protective sleeves 1.

[0026] Figure 3 and Figure 5The connecting device 2 shown also includes several connecting rods 29. Connecting grooves 210 are respectively opened on the side of the two heat-shrinkable protective sleeves 1 that are close to each other. The connecting rods 29 are inserted into the inner wall of the connecting grooves 210. Through the arrangement of the connecting rods 29 and the connecting grooves 210, the ends of the two heat-shrinkable protective sleeves 1 that are in contact with each other can maintain a relatively stable relationship, and it is not easy for one of the heat-shrinkable protective sleeves 1 to deflect abnormally. The surfaces of several connecting rods 29 are fixedly connected to a connecting ring 28. The connecting ring 28 is snapped into the inner wall of the connecting groove 210. Through the arrangement of the connecting ring 28, a certain connection relationship is formed between the several connecting rods 29, which makes it more convenient to use and achieves a more stable and faster disassembly and assembly effect.

[0027] Figure 1 and Figure 3 The connecting device 2 shown also includes a reinforcing ring 3 installed on the inner wall of the arc surface of the two heat-shrinkable protective sleeves 1 on opposite sides. The reinforcing ring 3 improves the stability of the heat-shrinkable protective sleeves 1 when assembled on the pipe surface. With the silicone material of the reinforcing ring 3, when the heat-shrinkable protective sleeves 1 shrink and cover the surface of the pipe, the reinforcing ring 3 will stably fit and press against the surface of the pipe, further increasing the friction and making it more stable. This prevents abnormal sliding on both sides of the combined heat-shrinkable protective sleeves 1, ensuring stable use. The connecting device 2 also includes a sealing ring 4 fixedly connected to the inner wall of the heat-shrinkable protective sleeve 1, and the sealing ring 4 is located on one side of the reinforcing ring 3. With the sponge material of the reinforcing ring 3, when the reinforcing ring 3 is fitted and pressed against the surface of the pipe, it can better fit against it, thereby further improving the sealing performance on both sides of the two heat-shrinkable protective sleeves 1.

[0028] Working principle: When splicing two heat-shrinkable protective sleeves 1 to protect a thin pipe, firstly, the two fixing rings 23 are respectively engaged into the annular grooves 22 on both sides of the arc surface of the connecting sleeve 21. Then, the connecting sleeve 21 is slid onto the surface of the pipe. Next, the two heat-shrinkable protective sleeves 1 are slid onto the surface of the pipe, located on both sides of the connecting sleeve 21, with the two heat-shrinkable protective sleeves 1 in contact with each other. Then, a heat source such as a hot air gun or soldering iron is used to heat the pipe, moving it back and forth along the length of the heat-shrinkable protective sleeve 1 and rotating the pipe to ensure even heating. During the shrinking process, the inner wall of the positioning ring 24, which is fixedly connected to the inner wall of the heat shrink protective sleeve 1, will fit against the arc surface of the fixing ring 23. This causes several protrusions 25 on the inner wall of the positioning ring 24 to engage with several grooves 26 on the arc surface of the fixing ring 23. This continues until the heat shrink tube is heated to fit tightly against the pipe and then completely cooled. When the two heat shrink protective sleeves are spliced ​​together, the connection position can be better stabilized, and small gaps are less likely to appear, preventing moisture, dust, and chemical media from intruding. This results in better protection and functionality.

[0029] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pipe protective sleeve that is easy and quick to assemble, comprising two heat-shrinkable protective sleeves (1), characterized in that: The heat shrinkable protective sleeve (1) can be fitted onto the surface of the pipe for protection. A connecting device (2) is provided on the side of the two heat shrinkable protective sleeves (1) that are close to each other. The connecting device (2) ensures a stable and sealed connection between the two heat shrinkable protective sleeves (1) by means of a connecting sleeve (21) and a positioning ring (24).

2. The pipe protective sleeve according to claim 1, characterized in that: The connecting device (2) includes a connecting sleeve (21). The connecting sleeve (21) has annular grooves (22) on both sides of the arc surface. A fixing ring (23) is fixedly connected to the inner wall of the annular groove (22). A number of evenly distributed grooves (26) are provided on the arc surface of the fixing ring (23). The inner walls of the two heat-shrinkable protective sleeves (1) are fixedly connected to positioning rings (24). A number of evenly distributed protrusions (25) are provided on the inner wall of the positioning rings (24). The protrusions (25) are matched with the size of the grooves (26).

3. The pipe protective sleeve according to claim 2, characterized in that: The connecting device (2) further includes a stabilizing ring (27) fitted on the arc surface of the connecting sleeve (21), wherein the stabilizing ring (27) includes the flatness of the arc surface of the connecting sleeve (21).

4. A pipe protective sleeve for convenient and quick assembly according to claim 2, characterized in that: The connecting device (2) also includes several connecting rods (29), and the two heat-shrinkable protective sleeves (1) are respectively provided with connecting grooves (210) on the side close to each other, wherein the connecting rods (29) are inserted into the inner wall of the connecting grooves (210).

5. A pipe protective sleeve for convenient and quick assembly according to claim 4, characterized in that: A connecting ring (28) is fixedly connected to the surface of several of the connecting rods (29), wherein the connecting ring (28) is engaged in the inner wall of the connecting groove (210).

6. A pipe protective sleeve for convenient and quick assembly according to claim 1, characterized in that: The connecting device (2) further includes a reinforcing ring (3) installed on the inner wall of the arc surface of the two heat-shrinkable protective sleeves (1) away from each other, wherein the reinforcing ring (3) improves the stability of the heat-shrinkable protective sleeves (1) assembled on the pipe surface.

7. A pipe protective sleeve for convenient and quick assembly according to claim 6, characterized in that: The connecting device (2) also includes a sealing ring (4) fixedly connected to the inner wall of the heat shrinkable protective sleeve (1), and the sealing ring (4) is located on one side of the reinforcing ring (3).