A plugging head with iron filings removing function

CN224850386UActive Publication Date: 2026-10-13CHINA SHIPBUILDING IND (SHENYANG) LIAOHAI OIL TRANSPORTATION EQUIP CO LTD
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Patent Information

Application Number
CN202522518154.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-10-13
Estimated Expiration
2035-11-27

AI Technical Summary

Technical Problem

[0003]然而,在钻孔过程中,由于高速旋转的钻头与金属工件之间持续摩擦,会产生大量细小而尖锐的铁屑,铁屑往往难以自然排出,积聚的碎屑如果没有及时清理干净,就会对后续工序造成隐患;例如,当在管道内放入堵头进行密封时,残留的碎屑可能导致堵头无法完全贴合管壁,从而影响密封效果,最终因密封不严而出现泄漏的状况

Benefits of technology

[0012]本实用新型通过清洁组件中的毛刷清除管道内壁附着的铁锈和污物,并通过多组磁铁吸附悬浮或积聚的碎屑,从而确保密封圈与管道内壁紧密贴合,有效防止介质泄漏,提升封堵作业的可靠性和安全性,同时三组橡胶密封圈能够从锥形筒的外部方便地拆卸更换位置,可使磨损区域得以转移,避免单一位置持续受损,从而有效消除因密封圈局部磨损而可能引发的泄漏问题。

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Abstract

The utility model discloses a plugging head with scrap iron removal function relates to pipeline opening technical field, including the plug body, the rear end of plug body is equipped with the connecting arm who is connected with the plugging ware output shaft, the plug body outer wall is equipped with the locating ring groove of extending to the rear surface, the locating ring groove outer wall is equipped with the sealing ring who can be in the abutment of pipeline inner wall. The utility model discloses through the brush in the cleaning component, removes the rust and dirt of adhering in the pipeline inner wall, and through multiple groups of magnet adsorption suspended or accumulated debris, thereby ensure that sealing ring and pipeline inner wall closely fit, effectively prevent medium leakage, improve the reliability and security of plugging operation, three groups of rubber sealing rings can conveniently dismantle and replace position from the outside of conical cylinder, can make the wear area shift, avoid single position continuous damage, thereby effectively eliminate the leakage problem that can be caused because of the local wear of sealing ring.
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Description

Technical Field

[0001] This utility model relates to the field of pipe opening technology, specifically a sealing head with iron filings removal function. Background Technology

[0002] Pipeline drilling is a core industrial operation that involves precisely drilling pre-defined holes in the pipeline using specialized equipment, under continuous flow, pressure, or atmospheric pressure. This technology is primarily used to achieve engineering goals such as branch connections, emergency repairs, online monitoring, and system upgrades in pipeline systems. Its greatest advantage lies in its ability to complete pipeline expansion or repair tasks without interrupting flow or affecting existing system operations, significantly improving operational efficiency and reducing operating costs.

[0003] However, during drilling, the continuous friction between the high-speed rotating drill bit and the metal workpiece generates a large amount of fine and sharp iron filings. These filings are often difficult to remove naturally, and if the accumulated debris is not cleaned up in time, it can cause problems for subsequent processes. For example, when a plug is placed inside a pipe for sealing, residual debris may prevent the plug from completely adhering to the pipe wall, thus affecting the sealing effect and ultimately leading to leakage due to incomplete sealing. Therefore, a plug with iron filings removal function is proposed. Utility Model Content

[0004] Based on this, the present invention aims to at least solve one of the technical problems existing in the prior art. To this end, a sealing head with a metal filings removal function is proposed, which can clean metal debris from inside the pipe and ensure the sealing performance of the pipe.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a plugging head with iron filings removal function, comprising a plugging head body, a connecting arm connected to the output shaft of the plugging device at the rear end of the plugging head body, a positioning ring groove extending to the rear surface on the outer wall of the plugging head body, a sealing ring that can abut against the inner wall of the pipe on the outer wall of the positioning ring groove, and a cleaning component assembled at the edge of the front end of the plugging head body.

[0006] The cleaning component includes a positioning ring assembled at the front end of the plug body. The outer wall of the positioning ring is provided with a brush along its circumference. The inner side of the positioning ring is provided with two sets of arc-shaped strips fixed to the front end face of the plug body. The surface of each set of arc-shaped strips is provided with three sets of Z-shaped positioning elements that abut against the front end of the positioning ring. The Z-shaped positioning elements are fixed to the end face of the cleaning component with screws. The front end of the plug body is provided with multiple sets of magnets for adsorbing debris at the lower half position.

[0007] As a preferred technical solution, a conical cylinder is fitted on the outer wall of the positioning ring groove, and the sealing ring is composed of three sets of rubber sealing rings and is fitted on the outer wall of the conical cylinder.

[0008] As a preferred technical solution, the end face of the conical cylinder is provided with an integrally formed end ring, which is fixed to the rear end face of the plug body by bolts.

[0009] As a preferred technical solution, the end of the connecting arm is welded with a connecting plate that connects to the rear end face of the plug body, and the connecting plate is detachably connected to the plug body by bolts.

[0010] As a preferred technical solution, the outer wall of the Z-shaped positioning member is provided with a ball at the position where it contacts the positioning ring, and the front end of the positioning ring is provided with an annular groove at the position corresponding to the ball.

[0011] In summary, the present invention has the following main advantages:

[0012] This invention uses a brush in the cleaning component to remove rust and dirt adhering to the inner wall of the pipe, and uses multiple sets of magnets to attract suspended or accumulated debris, thereby ensuring that the sealing ring fits tightly against the inner wall of the pipe, effectively preventing media leakage and improving the reliability and safety of the sealing operation. At the same time, the three sets of rubber sealing rings can be easily disassembled and replaced from the outside of the conical cylinder, allowing the worn area to be transferred and avoiding continuous damage to a single location, thus effectively eliminating leakage problems that may be caused by local wear of the sealing ring. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the plug of this utility model;

[0014] Figure 2 This is a schematic diagram of the unfolded structure of the plug of this utility model;

[0015] Figure 3 This is a schematic diagram of the cleaning component and the plug body of this utility model;

[0016] Figure 4 This is a structural diagram of the plug body and sealing ring of this utility model;

[0017] Figure 5 This is a partial side sectional view of the plug body and sealing ring of this utility model;

[0018] Figure 6 This is a schematic diagram showing the sealing ring of this utility model abutting against the inner wall of the pipe.

[0019] In the diagram: 100, plug body; 101, positioning ring groove; 110, cleaning component; 111, positioning ring; 112, brush; 113, arc strip; 114, Z-shaped positioning element; 120, sealing ring; 130, conical cylinder; 131, end ring; 140, connecting arm; 141, connecting disc; 150, magnet. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The embodiments of this utility model will be described below based on its overall structure.

[0022] A sealing head with iron filings removal function, such as Figures 1 to 6 As shown, the device includes a plug body 100, a connecting arm 140 connected to the output shaft of the plugger at the rear end of the plug body 100, a positioning ring groove 101 extending to the rear surface on the outer wall of the plug body 100, a sealing ring 120 that can abut against the inner wall of the pipe on the outer wall of the positioning ring groove 101, and a cleaning component 110 assembled at the edge of the front end of the plug body 100.

[0023] The cleaning component 110 includes a positioning ring 111 assembled at the front end of the plug body 100. The outer wall of the positioning ring 111 is provided with a brush 112 along its circumference. The inner side of the positioning ring 111 is provided with two sets of arc-shaped strips 113 fixed to the front end face of the plug body 100. The surface of each set of arc-shaped strips 113 is provided with three sets of Z-shaped positioning elements 114 that abut against the front end of the positioning ring 111. The Z-shaped positioning elements 114 are fixed to the end face of the cleaning component 110 with screws. The lower half of the front end of the plug body 100 is provided with multiple sets of magnets 150 for adsorbing debris.

[0024] A tapered cylinder 130 is fitted on the outer wall of the positioning ring groove 101, and the sealing ring 120 is composed of three sets of rubber sealing rings and is fitted on the outer wall of the tapered cylinder 130.

[0025] It is worth noting that the three sets of rubber sealing rings are of equal size and can all be deformed by the conical cylinder 130, causing the outer surface of the sealing ring 120 to be conical, as per the instruction manual. Figure 5 As shown;

[0026] Driven by the output shaft of the plug, the plug body 100 smoothly enters the pipe from the pre-drilled orifice and accurately reaches the predetermined working position under the pushing and positioning action of the output shaft. At this time, the sealing ring 120 on the plug body 100 is subjected to radial pressure and achieves a tight fit with the inner wall of the pipe, forming a reliable and durable sealing effect, effectively blocking the flow of the medium in the pipe. Before this, the cleaning component 110 at its front end will first contact the pipe wall surface near the pipe opening area. Its brush 112 can mechanically scrape and clean the rust and dirt attached to the inner wall of the pipe, thus laying the groundwork for the sealing ring 120 to fully contact the inner wall of the pipe. At the same time, multiple sets of high-strength magnets 150 embedded in the lower half of the front end of the plug body 100 generate a strong magnetic field area, which can quickly adsorb and fix the ferromagnetic debris swept down and suspended in the liquid in the pipe, preventing it from interfering with the sealing surface of the sealing ring 120 or damaging the sealing structure with the flow of liquid, thereby ensuring the sealing performance of the entire plugging process.

[0027] The positioning ring 111 is supported and positioned by two sets of symmetrically distributed arc-shaped strips 113, ensuring that it remains concentric with the plug body 100. Each set of arc-shaped strips 113 is provided with three sets of Z-shaped positioning elements 114, which abut against the end face of the positioning ring 111 to form an effective circumferential limit, thereby maintaining the stability of the overall structure in the working state. When the plug body 100 is used multiple times in the future, an external rotational force can be applied to the positioning ring 111. At this time, the arc-shaped strips 113 not only play a supporting role, but the positioning ring 111 also drives the brush 112 installed on its outer side to rotate together. Since the debris generated by the drilling operation accumulates in the lower half of the pipe, the brush 112 located in this area will be attached with a certain amount of debris. By rotating, the brush 112 can thoroughly clean the rust on the inner wall of the pipe.

[0028] As per the instruction manual Figure 6 As shown, the sealing ring 120, which enters the pipe along with the plug body 100, will be tilted. Points A and B marked in the figure are key locations where the sealing ring 120 is prone to wear due to continuous uneven compression. Therefore, a combination of three sets of rubber sealing rings is used. All three sets of sealing rings can be easily removed and replaced from the outside of the conical cylinder 130, which can transfer the wear area and avoid continuous damage to a single location. This effectively eliminates leakage problems that may be caused by local wear of the sealing ring and further improves the sealing reliability of the plug body 100.

[0029] The end face of the tapered cylinder 130 is provided with an integrally formed end ring 131, which is fixed to the rear end face of the plug body 100 by bolts.

[0030] Increase the connection strength between the conical cylinder 130 and the end ring 131 to better position the sealing ring 120 and ensure its stability during assembly and use.

[0031] Please refer to this carefully. Figure 1 and Figure 2 The end of the connecting arm 140 is welded with a connecting plate 141 that is connected to the rear end face of the plug body 100. The connecting plate 141 is detachably connected to the plug body 100 by bolts.

[0032] It facilitates the removal and replacement of damaged connecting arm 140, effectively avoiding the situation where the entire component has to be discarded due to partial damage, thereby reducing material waste and improving resource utilization.

[0033] Please refer to this carefully. Figure 2 and Figure 3 A ball is provided at the position where the outer wall of the Z-shaped positioning member 114 contacts the positioning ring 111, and an annular groove is provided at the front end of the positioning ring 111 at the position corresponding to the ball.

[0034] The ball engages with the annular groove at the front end of the positioning ring 111, and under the constraint of the Z-shaped positioning element 114, the positioning ring 111 can rotate smoothly and stably.

[0035] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, but such modifications, substitutions, and variations are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A sealing head with iron filings removal function, comprising a sealing head body (100), characterized in that: The plug body (100) has a connecting arm (140) at its rear end that is connected to the output shaft of the plugger. The outer wall of the plug body (100) has a positioning ring groove (101) extending to the rear surface. The outer wall of the positioning ring groove (101) is fitted with a sealing ring (120) that can abut against the inner wall of the pipe. A cleaning component (110) is installed at the edge of the front end of the plug body (100). The cleaning component (110) includes a positioning ring (111) assembled at the front end of the plug body (100). The outer wall of the positioning ring (111) is provided with a brush (112) along its circumference. The inner side of the positioning ring (111) is provided with two sets of arc-shaped strips (113) fixed to the front end face of the plug body (100). The surface of each set of arc-shaped strips (113) is provided with three sets of Z-shaped positioning elements (114) that abut against the front end of the positioning ring (111). The Z-shaped positioning elements (114) are fixed to the end face of the cleaning component (110) with screws. The front end of the plug body (100) is provided with multiple sets of magnets (150) for adsorbing debris at the lower half position.

2. A sealing head with iron filings removal function according to claim 1, characterized in that: The outer wall of the positioning ring groove (101) is fitted with a conical cylinder (130), and the sealing ring (120) is composed of three sets of rubber sealing rings and is fitted onto the outer wall of the conical cylinder (130).

3. A sealing head with iron filings removal function according to claim 2, characterized in that: The end face of the conical cylinder (130) is provided with an integrally formed end ring (131), which is fixed to the rear end face of the plug body (100) by bolts.

4. A sealing head with iron filings removal function according to claim 1, characterized in that: The end of the connecting arm (140) is welded with a connecting plate (141) that is connected to the rear end face of the plug body (100). The connecting plate (141) is detachably connected to the plug body (100) by bolts.

5. A sealing head with iron filings removal function according to claim 1, characterized in that: The outer wall of the Z-shaped positioning member (114) is provided with a ball at the position where it contacts the positioning ring (111), and the front end of the positioning ring (111) is provided with an annular groove at the position corresponding to the ball.