KBG pipe end protective sleeve

CN224709301UActive Publication Date: 2026-09-01CHANGZHOU YUANHENG PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202522108343.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-09-01
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

[0004]但是该结构在实际使用时,通过弹性垫圈加大摩擦力防止脱落,但无法实现与管口外壁的紧密贴合以大幅增强摩擦力,在长期使用,管道轻微振动或者外力触碰中,保护套易沿管口滑动,导致管口部分暴露,失去防护效果

Benefits of technology

1、本实用新型采用固定机构,连接环与保护套、外围环协同构成稳定支撑结构,配合防滑耐磨层,其热塑性聚氨酯弹性材质能紧密贴合KBG管口外壁,大幅增强摩擦力,有效避免保护套在使用中滑动移位,同时该材质耐磨性优异,延长固定机构使用寿命,而且,防脱凸环半圆形截面设计,既便于安装时顺利套入管口,又能在安装到位后借助材质弹性形成可靠轴向限位,防止保护套脱落,此外,弹性衬垫与连接凹槽搭配,弹性衬垫可适配不同公差的KBG管口,填充间隙,提升连接密封性与适配性,整体显著提升保护套的安装稳定性与防护可靠性;

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Abstract

This utility model discloses a KBG pipe end protective sleeve, specifically relating to the field of electrical installation auxiliary accessories technology. It includes a KBG pipe end protective sleeve with a ring-shaped structure. An outer ring is fixedly disposed on the surface of the protective sleeve, and a fixing mechanism is provided on one side of the outer ring. The fixing mechanism includes a connecting ring fixedly disposed at the bottom of the outer ring. An elastic pad is fixedly disposed on the outer surface of the protective sleeve, and the elastic pad is ring-shaped. An anti-slip and wear-resistant layer is fixedly disposed on the inner wall of the connecting ring. A connecting groove is provided between the elastic pad and the anti-slip and wear-resistant layer. An anti-detachment protrusion is fixedly disposed on one side of the anti-slip and wear-resistant layer on the surface of the connecting ring. The overall structure of this utility model effectively blocks sharp points on the pipe end, protecting cables and construction personnel. Secondly, it facilitates smooth insertion into the pipe end during installation, and after installation, the material's elasticity forms a reliable axial limit, preventing the protective sleeve from falling off, thus improving safety and reliability.
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Description

Technical Field

[0001] This utility model relates to the field of electrical installation auxiliary accessories technology, and more specifically, to KBG pipe port protective sleeves. Background Technology

[0002] In modern building electrical system wiring projects, KBG conduit (sleeve-fitted galvanized steel conduit) has become the core carrier for indoor and outdoor electrical wiring due to its lightweight structure, convenient installation, and excellent corrosion resistance. It is widely used in various scenarios such as commercial buildings, residential communities, and industrial plants. However, during the production and cutting process of KBG conduit, the sharp ends can easily scratch cables and construction workers, so protective sleeves for the conduit ends need to be installed.

[0003] In actual use, the length of the pipe usually needs to be cut according to the actual situation. After the pipe is cut, the protective film is damaged, which will cause corrosion and rust in the later use, thus shortening the service life of the metal pipe. A search revealed that Chinese Patent CN218626031U discloses a protective sleeve for a metal pipe opening. This structure features a groove on the outer periphery of one end of the protective sleeve that can connect with the metal pipe opening, and a sealing ring on the other end that can fit tightly against the inner wall of the metal pipe. This reduces the contact between the metal pipe opening and air and moisture in the external environment, lowers the probability of corrosion and rust, and extends the service life of the metal pipe. By adding the sealing ring and the groove, direct contact between the fluid and the pipe opening can be effectively avoided, preventing secondary contamination of the fluid. The addition of an elastic washer increases the friction between the sleeve and the side wall of the metal pipe, enhancing the connection strength between the protective sleeve and the metal pipe and preventing detachment.

[0004] However, in actual use, this structure increases friction through elastic washers to prevent it from falling off, but it cannot achieve a tight fit with the outer wall of the pipe opening to significantly enhance friction. In long-term use, the protective sleeve is prone to sliding along the pipe opening when the pipe vibrates slightly or is touched by external force, resulting in partial exposure of the pipe opening and loss of protective effect. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a KBG pipe port protective sleeve to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: KBG pipe port protective sleeve, including a KBG pipe port protective sleeve, wherein the protective sleeve has a ring structure, an outer ring is fixedly provided on the surface of the protective sleeve, and a fixing mechanism is provided on one side of the outer ring; The fixing mechanism includes a connecting ring fixedly disposed at the bottom of the outer ring, an elastic pad fixedly disposed on the outer surface of the protective sleeve, the elastic pad being ring-shaped, an anti-slip and wear-resistant layer fixedly disposed on the inner wall of the connecting ring, and a connecting groove disposed between the elastic pad and the anti-slip and wear-resistant layer. An anti-detachment protrusion is fixedly provided on one side of the anti-slip and wear-resistant layer on the surface of the connecting ring; The anti-slip and wear-resistant layer and the anti-detachment protrusion ring can be made of thermoplastic polyurethane elastic material, and the cross-section of the anti-detachment protrusion ring is set as semi-circular.

[0007] By adopting the above technical solution, the protective sleeve and the KBG pipe opening can be accurately connected. Moreover, the anti-slip and wear-resistant layer of thermoplastic polyurethane elastic material enhances the connection friction, prevents displacement, and is wear-resistant and durable. The outer ring strengthens the edge strength of the protective sleeve.

[0008] As a further description of the above technical solution: the protective sleeve has uniformly distributed reinforcing ribs fixedly arranged in a ring shape inside, and the reinforcing ribs are made of glass fiber reinforced plastic; The elastic pad is made of rubber, and multiple anti-slip strips are fixedly provided on the surface of the protective cover; The protective cover and anti-slip strip are fixedly provided with a wear-resistant silicone layer.

[0009] By adopting the above technical solutions, the ring-shaped reinforcing ribs made of glass fiber reinforced plastic significantly improve the internal structural strength of the protective case, effectively resist external deformation and damage, and extend the product's service life. The elastic pads made of rubber enhance the fit with the KBG pipe opening, adapt to minor differences in pipe diameter, and buffer the impact during installation and use. Overall, the protective case combines stability, adaptability, and durability.

[0010] As a further description of the above technical solution: a sealing ring is fixedly provided on the inner wall of the connecting groove, and the sealing ring is located at the bottom of the protective sleeve.

[0011] By adopting the above technical solution, it can closely fit the outer wall of the KBG pipe opening, fill the tiny gap between the two, effectively block dust, moisture and other impurities from entering, and extend the service life of the protective sleeve, KBG pipe and cable.

[0012] The technical effects and advantages of this utility model are as follows: 1. This utility model adopts a fixing mechanism. The connecting ring, protective sleeve, and outer ring work together to form a stable support structure. With the anti-slip and wear-resistant layer, its thermoplastic polyurethane elastic material can closely fit the outer wall of the KBG pipe opening, greatly enhancing the friction and effectively preventing the protective sleeve from sliding and shifting during use. At the same time, the material has excellent wear resistance, extending the service life of the fixing mechanism. Moreover, the anti-detachment convex ring has a semi-circular cross-section design, which not only facilitates smooth insertion into the pipe opening during installation, but also forms a reliable axial limit after installation by means of the material's elasticity, preventing the protective sleeve from falling off. In addition, the elastic pad is matched with the connecting groove. The elastic pad can adapt to KBG pipe openings with different tolerances, fill the gaps, improve the connection sealing and adaptability, and significantly improve the installation stability and protective reliability of the protective sleeve. 2. The reinforcing ribs made of glass fiber reinforced plastic in this utility model are evenly distributed in a ring inside the protective sleeve, which greatly enhances its overall structural strength, effectively resists external pressure and collision, avoids deformation and damage to the protective sleeve, and extends its service life. The elastic pad made of rubber material has better elasticity, and together with the anti-slip strip on the surface of the protective sleeve, it increases the friction of hand grip during construction, making it easy to install and disassemble and preventing slippage. The wear-resistant silicone layer on the surface of the protective sleeve and the anti-slip strip improves the surface wear resistance and reduces daily wear. The sealing rings on the inner wall of the connecting groove and the bottom of the protective sleeve can tightly fit the KBG pipe opening, blocking dust and moisture from entering, strengthening the sealing performance, and comprehensively protecting the safety of KBG pipes and cables. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the overall frontal cross-sectional structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the disassembled structure of the fixing mechanism of this utility model.

[0016] Figure 4 This is a top-view structural diagram of the disassembled fixing mechanism of this utility model.

[0017] Figure 5 This is a schematic diagram of the overall top sectional structure of this utility model.

[0018] The attached diagram is labeled as follows: 1. Protective sleeve; 2. Outer ring; 3. Connecting ring; 4. Elastic pad; 5. Anti-slip and wear-resistant layer; 6. Connecting groove; 7. Anti-detachment protrusion ring; 8. Reinforcing rib; 9. Anti-slip strip; 10. Wear-resistant silicone layer; 11. Sealing ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] The embodiments disclosed in this application are as follows: Figures 1-5 The KBG pipe port protective sleeve shown includes an adapter KBG pipe port protective sleeve 1. The protective sleeve 1 has a ring structure, and an outer ring 2 is fixedly provided on the surface of the protective sleeve 1. A fixing mechanism is provided on one side of the outer ring 2. The fixing mechanism includes a connecting ring 3 fixedly installed at the bottom of the outer ring 2, an elastic pad 4 fixedly installed on the outer surface of the protective sleeve 1, the elastic pad 4 being ring-shaped, an anti-slip and wear-resistant layer 5 fixedly installed on the inner wall of the connecting ring 3, and a connecting groove 6 provided between the elastic pad 4 and the anti-slip and wear-resistant layer 5. An anti-detachment protrusion ring 7 is fixedly provided on one side of the anti-slip and wear-resistant layer 5 on the surface of the connecting ring 3; The anti-slip and wear-resistant layer 5 and the anti-detachment protrusion ring 7 can be made of thermoplastic polyurethane elastic material, and the cross section of the anti-detachment protrusion ring 7 is set as semi-circular; For initial alignment, align the connecting groove 6 of the protective sleeve 1 with the end of the KBG pipe opening, so that the pipe opening is directly above the connecting groove 6. At this time, the elastic pad 4 first contacts the pipe opening. Manually press the protective sleeve 1 to squeeze it in and apply external force to force the KBG pipe opening into the connecting groove 6. During the process, the elastic pad 4 is compressed and deformed to fit the pipe opening size, while also increasing the friction with the pipe opening. In addition, the anti-slip and wear-resistant layer 5 wraps around the outer wall of the pipe opening along with the connecting ring 3. The elasticity of the TPU material makes it fit tightly and fill the tiny gaps. At the same time, the anti-detachment protrusion ring 7 is squeezed and deformed by the outer wall of the pipe opening due to the elasticity of TPU, allowing the pipe opening to pass smoothly through the protrusion ring position.

[0021] Reference Figures 2-3 As shown, the protective sleeve 1 has uniformly distributed reinforcing ribs 8 fixed in a ring shape inside, and the reinforcing ribs 8 are made of glass fiber reinforced plastic. The elastic pad 4 is made of rubber, and multiple anti-slip strips 9 are fixedly provided on the surface of the protective cover 1; A wear-resistant silicone layer 10 is fixedly provided on the surface of the protective cover 1 and the anti-slip strip 9; The ring structure of the protective sleeve 1 covers the sharp edge of the KBG pipe opening. When the cable is inserted into the pipe, it directly contacts the protective sleeve 1, avoiding the insulation layer from being scratched by the pipe opening. When the construction personnel are operating, their hands touch the wear-resistant silicone layer 10 and anti-slip strip 9 on the surface of the protective sleeve 1, rather than the sharp pipe opening, to prevent cuts. Furthermore, the reinforcing rib 8 enhances the strength of the protective sleeve 1, ensuring that the protective sleeve 1 maintains its shape and continuously covers the pipe opening even when subjected to wire pulling force or construction collision force.

[0022] Reference Figures 4-5 As shown, a sealing ring 11 is fixedly provided on the inner wall of the connecting groove 6, and the sealing ring 11 is located at the bottom of the protective sleeve 1. The sealing ring 11 contacts the outer wall of the pipe opening, initially forming a sealing tendency; Once the KBG pipe is fully engaged in the connecting groove 6, the elastic pad 4 recovers some of its deformation and continues to adhere tightly to the inner wall of the pipe, providing buffer protection. The anti-detachment protrusion 7 elastically resets and locks onto the outer wall of the pipe, forming an axial limit and preventing the protective sleeve 1 from falling off.

[0023] Working principle of this utility model: This utility model is a KBG pipe port protective sleeve. Before installation, the device should be prepared to ensure that the elastic pad 4 is undamaged, the anti-slip and wear-resistant layer 5 is not detached, the anti-detachment convex ring 7 is elastic and the sealing ring 11 is not displaced, so as to ensure that the functions of each structure are intact and to guarantee the protective effect after installation. For initial alignment, align the connecting groove 6 of the protective sleeve 1 with the end of the KBG pipe opening, so that the pipe opening is directly above the connecting groove 6. At this time, the elastic pad 4 first contacts the pipe opening. Manually press the protective sleeve 1 to squeeze it in and apply external force to force the KBG pipe opening into the connecting groove 6. During the process, the elastic gasket 4 is compressed and deformed to fit the pipe opening size, while also increasing the friction with the pipe opening. In addition, the anti-slip and wear-resistant layer 5 wraps around the outer wall of the pipe opening along with the connecting ring 3. The elasticity of the TPU material makes it fit tightly and fill the tiny gaps. At the same time, the anti-detachment convex ring 7 is squeezed and deformed by the outer wall of the pipe opening due to the elasticity of TPU, allowing the pipe opening to pass smoothly through the convex ring position. The sealing rubber ring 11 contacts the outer wall of the pipe opening, initially forming a sealing trend. Once the KBG pipe is fully engaged in the connecting groove 6, the elastic pad 4 recovers some of its deformation and continues to adhere tightly to the inner wall of the pipe, providing buffer protection. The anti-detachment protrusion 7 elastically resets and is locked onto the outer wall of the pipe, forming an axial limit and preventing the protective sleeve 1 from falling off. The sealing ring 11 is squeezed by the outer wall of the pipe opening, filling the gap between the connecting groove 6 and the pipe opening to achieve a seal. At this time, the protective sleeve 1 is firmly connected to the KBG pipe opening through the radial limiting of the connecting groove 6, the axial limiting of the anti-detachment protrusion ring 7, and the friction of the elastic pad 4 and the anti-slip wear-resistant layer 5, thus completing the installation. The ring structure of the protective sleeve 1 covers the sharp edge of the KBG pipe opening. When the cable is inserted into the pipe, it directly contacts the protective sleeve 1, avoiding the insulation layer from being scratched by the pipe opening. When the construction personnel are operating, their hands touch the wear-resistant silicone layer 10 and anti-slip strip 9 on the surface of the protective sleeve 1, rather than the sharp pipe opening, to prevent cuts. Moreover, the reinforcing rib 8 enhances the strength of the protective sleeve 1, so that even when subjected to the pulling force of threading or the impact force of construction, the protective sleeve 1 can maintain its shape and continuously cover the pipe opening; The anti-slip and wear-resistant layer 5 and the anti-detachment convex ring 7 ensure the stability of the connection between the protective sleeve 1 and the pipe opening, and will not fall off due to cable pulling, construction vibration, etc., and will continue to play a protective role. The sealing rubber ring 11 blocks dust and moisture from entering and protects the internal cables and pipe openings of the KBG pipe from corrosion. When disassembly is required, hold the protective sleeve 1 and apply a reverse external force to make the anti-detachment protrusion 7 elastically deform again, allowing the KBG pipe opening to gradually detach from the connecting groove 6. As the pipe opening is withdrawn, the elastic pad 4, the anti-slip and wear-resistant layer 5, and the sealing ring 11 separate from the pipe opening in sequence, completing the disassembly of the protective sleeve 1 for subsequent maintenance and replacement operations.

[0024] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A KBG pipe port protective sleeve, including an adapter for a KBG pipe port protective sleeve (1), characterized in that: The protective sleeve (1) has a ring structure, and an outer ring (2) is fixedly provided on the surface of the protective sleeve (1). A fixing mechanism is provided on one side of the outer ring (2). The fixing mechanism includes a connecting ring (3) fixedly disposed at the bottom of the outer ring (2), an elastic pad (4) fixedly disposed on the outer surface of the protective sleeve (1), the elastic pad (4) is configured as an annular shape, an anti-slip and wear-resistant layer (5) is fixedly disposed on the inner wall of the connecting ring (3), and a connecting groove (6) is provided between the elastic pad (4) and the anti-slip and wear-resistant layer (5). An anti-detachment protrusion (7) is fixedly provided on one side of the anti-slip and wear-resistant layer (5) on the surface of the connecting ring (3).

2. The KBG pipe port protective sleeve according to claim 1, characterized in that: The anti-slip and wear-resistant layer (5) and the anti-detachment protrusion ring (7) can be made of thermoplastic polyurethane elastic material, and the cross section of the anti-detachment protrusion ring (7) is set as semi-circular.

3. The KBG pipe port protective sleeve according to claim 1, characterized in that: The protective sleeve (1) has uniformly distributed reinforcing ribs (8) fixed in a ring shape inside, and the reinforcing ribs (8) are made of glass fiber reinforced plastic.

4. The KBG pipe port protective sleeve according to claim 1, characterized in that: The elastic pad (4) is made of rubber, and multiple anti-slip strips (9) are fixedly provided on the surface of the protective sleeve (1). The protective sleeve (1) and the anti-slip strip (9) are fixedly provided with a wear-resistant silicone layer (10).

5. The KBG pipe port protective sleeve according to claim 1, characterized in that: A sealing ring (11) is fixedly provided on the inner wall of the connecting groove (6), and the sealing ring (11) is provided at the bottom of the protective sleeve (1).

Citation Information

Patent Citations

  • Metal pipe opening protective sleeve

    CN218626031U