Trimming device for electric power protection pipe joint

By designing a trimming device for power protection pipe joints, and utilizing the coordination of the adjustment mechanism and the grinding body, the problem of burrs affecting the sealing and insulation performance of power protection pipe joints after cutting was solved, achieving uniform grinding and improving construction quality and safety.

CN223998077UActive Publication Date: 2026-03-17HENAN CHANGJIU IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In power engineering construction, burrs generated after cutting power protection pipe joints affect the connection sealing and cable insulation performance. Existing hand-held grinding methods cannot guarantee uniform grinding, resulting in shortened cable service life and safety hazards.

Method used

Design an edge trimming device for power protection pipe joints, including a round seat, a square tube, and a grinding body. The square tube is driven to move closer or further away by an adjustment mechanism, causing the grinding body to contact the outer or inner edge of the cut end of the power protection pipe joint. Grinding is achieved by rotating the round seat, ensuring that the grinding amount is uniform.

Benefits of technology

The process achieved uniform grinding of the cut ends of the power protection pipe joints, improved grinding quality, ensured connection sealing and cable insulation performance, and reduced safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an electric power protection pipe joint trimming device which comprises a round seat, square pipes and polishing bodies, a square sliding cavity channel with two through ends is arranged in the round seat along the radial direction, the two square pipes are symmetrically inserted on two sides in the sliding cavity channel in a sliding mode, and the polishing bodies are arranged at the ends, extending to the outside of the round seat, of the two square pipes. An adjusting mechanism is arranged in the round seat and used for driving the two square pipes to be close to each other or away from each other, and the two polishing bodies can be clamped on the cut-off outer edge of the pipe joint and can also be clamped on the cut-off inner edge of the pipe joint. The adjusting mechanism is operated to drive the two square pipes to be close to or away from each other for adjustment, the two polishing bodies are driven to abut against and be clamped on the outer edge or the inner edge of the cutting end of the electric power protection pipe connector, and then the round base is rotated to drive the two polishing bodies to rotate around the axis of the electric power protection pipe connector. The outer edge or the inner edge of the cut end of the electric protection pipe joint can be polished and trimmed, operation is easy and convenient, meanwhile, it is guaranteed that the polishing amount is uniform, and the polishing and trimming quality is improved.
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Description

Technical Field

[0001] This utility model relates to the field of pipe trimming technology, specifically a trimming device for power protection pipe joints. Background Technology

[0002] In power engineering construction, the on-site environment is complex and ever-changing. The required length and specifications of power protection pipes need to be precisely adapted to different laying scenarios. This necessitates cutting the power protection pipe joints to fit various actual installation spaces, ensuring a reasonable layout and smooth connection of the entire power protection system pipeline. After cutting, burrs will appear on the cut ends of the power protection pipe joints. These burrs will affect the sealing of the connection between the pipe joints, allowing external moisture, dust, and other impurities to easily penetrate, leading to cable dampness and corrosion, shortening the cable's service life, and scratching the cable's insulation layer, reducing its insulation performance, and potentially causing short circuits and other safety accidents. Therefore, after cutting the power protection pipe joints, edge trimming is necessary to remove the burrs.

[0003] During the actual construction process, after the workers cut the power protection pipe joint, they usually choose to use hand sandpaper to polish the cut. This polishing method is difficult to ensure uniform polishing and is prone to local over-polishing or under-polishing, which affects the quality of the power protection pipe joint. Utility Model Content

[0004] The purpose of this invention is to provide a trimming device for power protection pipe joints, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A trimming device for a power protection pipe joint includes a round seat, square tubes, and grinding bodies. The round seat has a square sliding cavity with two through ends along its radial direction. Two square tubes are symmetrically slidably inserted into the two sides of the sliding cavity. Grinding bodies are provided at the ends of the two square tubes extending to the outside of the round seat. An adjustment mechanism is provided in the round seat to drive the two square tubes to move closer or further apart. The two grinding bodies can be clamped on the outer edge of the pipe joint cut or on the inner edge of the pipe joint cut.

[0007] Therefore, by operating the adjustment mechanism to move the two square tubes closer or further apart, the two grinding bodies can be driven to abut and be locked onto the outer or inner edge of the cut end of the power protection pipe connector. Then, by rotating the round seat, the two grinding bodies can be rotated around the axis of the power protection pipe connector, thereby grinding and trimming the outer or inner edge of the cut end of the power protection pipe connector respectively, ensuring uniform grinding amount and improving the grinding and trimming quality.

[0008] Furthermore, the grinding body consists of a horizontal part and an arc-shaped part. The arc-shaped part is arc-shaped, with its inner edge matching the outer edge wall of the pipe joint and its outer edge matching the inner edge wall of the pipe joint. The arc-shaped part is fixed on the horizontal part, and the horizontal part is correspondingly fixed on the end of the square tube. The overall cross-section formed by the horizontal part and the arc-shaped part is T-shaped.

[0009] Furthermore, the adjustment mechanism includes a bracket, a bidirectional threaded rod, and a nut seat. A pair of brackets are fixed inside the sliding cavity, and a bidirectional threaded rod extending radially along the circular seat is rotatably mounted on the two brackets. Nut seats are fixed inside both square tubes, and the two nut seats are threadedly matched and fitted on both sides of the bidirectional threaded rod. An adjustment device is also provided on the circular seat, which is used to drive the bidirectional threaded rod to rotate and adjust.

[0010] Furthermore, the adjusting device includes a rotating shaft, bevel gear A and bevel gear B. The round seat is provided with a mounting hole communicating with the sliding cavity. The rotating shaft is rotatably installed in the mounting hole. One end of the rotating shaft extends to the outside of the round seat, and the other end extends into the sliding cavity and is fixedly installed with bevel gear A. Bevel gear B is fixedly fitted on the bidirectional threaded rod and meshes with bevel gear A.

[0011] Furthermore, a handle is installed on the end of the shaft that extends outside the round base.

[0012] Furthermore, a handle is fixed to the end of the round base, and the handle has anti-slip texture.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0014] This utility model uses an operating adjustment mechanism to move the two square tubes closer or further apart, which can cause the two grinding bodies to be locked onto the outer or inner edge of the cut end of the power protection pipe connector. Then, by rotating the round seat, the two grinding bodies can be rotated around the axis of the power protection pipe connector, thereby grinding and trimming the outer or inner edge of the cut end of the power protection pipe connector respectively. The operation is simple and convenient, while ensuring that the grinding amount is uniform and consistent, thus improving the grinding and trimming quality. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0016] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the structure.

[0017] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 4 This is a detailed structural diagram of the grinding body in this utility model;

[0019] Figure 5 A schematic diagram of the structure in which the grinding body is clamped onto the cut outer edge of the power protection pipe connector;

[0020] Figure 6 A schematic diagram of the structure in which the grinding body is mounted on the cut inner edge of the power protection pipe connector.

[0021] In the diagram: 1. Round seat; 11. Sliding cavity; 2. Square tube; 3. Adjustment mechanism; 31. Bracket; 32. Double-threaded rod; 33. Nut seat; 4. Adjustment device; 401. Mounting hole; 41. Rotating shaft; 411. Handle; 42. Bevel gear A; 43. Bevel gear B; 5. Grinding body; 51. Horizontal part; 52. Arc-shaped part; 6. Handle. Detailed Implementation

[0022] 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.

[0023] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0024] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0025] Please see Figures 1-6The present invention provides a trimming device for a power protection pipe joint, comprising a round seat 1, a square tube 2, and a grinding body 5. The round seat 1 has a square sliding cavity 11 with both ends extending through it radially. The two square tubes 2 are symmetrically slidably inserted into both sides of the sliding cavity 11. The grinding body 5 is provided at the ends of the two square tubes 2 extending to the outside of the round seat 1. The round seat 1 is provided with an adjustment mechanism 3, which is used to drive the two square tubes 2 to move closer or further apart. The two grinding bodies 5 can be clamped on the outer edge of the pipe joint cut or on the inner edge of the pipe joint cut.

[0026] After the staff cuts the power protection pipe joint to the required length, they drive the two square pipes 2 away from each other by operating the adjustment mechanism 3. Figure 6 As shown, until the two grinding bodies 5 are in contact and locked onto the inner edge of the cut end of the power protection pipe connector, then rotate the round seat 1 so that the two grinding bodies 5 rotate around the axis of the power protection pipe connector on the inner edge of the cut end, which can grind the burrs generated on the inner edge of the cut.

[0027] The operating adjustment mechanism 3 drives the two square tubes 2 away from each other until the distance between the two grinding bodies 5 is greater than the diameter of the power protection pipe connector. Then, the power protection pipe connector is placed between the two grinding bodies 5. Next, the operating adjustment mechanism 3 drives the two square tubes 2 closer together. Figure 5 As shown, the grinding bodies 5 are engaged and locked onto the outer edge of the cut end of the power protection pipe connector. Then, the round base 1 is rotated so that the two grinding bodies 5 rotate around the axis of the power protection pipe connector at the outer edge of the cut end. This can grind the burrs generated at the outer edge of the cut end, thus achieving the grinding and trimming treatment of the cut end of the power protection pipe connector, ensuring uniform grinding amount and improving the grinding and trimming quality.

[0028] Specifically, the grinding body 5 is composed of a horizontal part 51 and an arc-shaped part 52. The arc-shaped part 52 is arc-shaped, and its inner edge is adapted to the outer edge wall of the pipe joint, and its outer edge is adapted to the inner edge wall of the pipe joint. The arc-shaped part 52 is fixed on the horizontal part 51, and the horizontal part 51 is correspondingly fixed on the end of the square tube 2. The overall cross-section of the horizontal part 51 and the arc-shaped part 52 is T-shaped.

[0029] The horizontal part 51 and the arc-shaped part 52 form a T-shaped grinding body 5. When the grinding body 5 is pressed against the inner edge of the cut end, the outer edge of the arc-shaped part 52 is in contact with the inner edge of the pipe joint, and the horizontal part 51 is in contact with the cut end face. As the rotation proceeds, the inner edge of the cut end and the cut end face can be ground and deburred at the same time. When the grinding body 5 is pressed against the outer edge of the cut end, the inner edge of the arc-shaped part 52 is in contact with the outer edge of the pipe joint, and the horizontal part 51 is in contact with the cut end face. As the rotation proceeds, the outer edge of the cut end and the cut end face can be ground and deburred at the same time, resulting in a good grinding and trimming effect.

[0030] Specifically, the adjustment mechanism 3 includes a bracket 31, a bidirectional threaded rod 32, and a nut seat 33. A pair of brackets 31 are fixed inside the sliding cavity 11. The bidirectional threaded rod 32 extending radially along the round seat 1 is rotatably mounted on the two brackets 31. Nut seats 33 are fixed inside the two square tubes 2. The two nut seats 33 are threadedly matched and fitted on both sides of the bidirectional threaded rod 32. An adjustment device 4 is also provided on the round seat 1. The adjustment device 4 is used to drive the bidirectional threaded rod 32 to rotate for adjustment.

[0031] The adjusting device 4 includes a rotating shaft 41, a bevel gear A42 and a bevel gear B43. The round seat 1 is provided with a mounting hole 401 communicating with the sliding cavity 11. The rotating shaft 41 is rotatably installed in the mounting hole 401. One end of the rotating shaft 41 extends to the outside of the round seat 1 and the other end extends into the sliding cavity 11, and the bevel gear A42 is fixedly installed thereon. The bevel gear B43 is fixedly fitted on the bidirectional threaded rod 32, and the bevel gear B43 meshes with the bevel gear A42.

[0032] A handle 411 is mounted on the end of the rotating shaft 41 that extends to the outside of the round base 1.

[0033] By squeezing the handle 411 to turn the rotating shaft 41, the rotating shaft 41 drives the bevel gear A42 to rotate. The bevel gear A42 meshes with and drives the bevel gear B43, which in turn drives the bidirectional threaded rod 32 to rotate. The rotating bidirectional threaded rod 32 can drive the two nut seats 33 to move closer or further apart, thereby driving the two square tubes 2 to extend and retract to adapt to different positions where the grinding body 5 is installed at the cut end of the power protection pipe connector.

[0034] Specifically, a handle 6 is fixed to the end of the round base 1. By holding the handle 6, it is convenient to exert force to rotate the round base 1 for grinding and trimming. In addition, the handle 6 has anti-slip texture, which has an anti-slip effect when rotating the round base 1 while holding the handle 6.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electric power protection pipe joint edge trimming device characterized in that: It comprises a round seat (1), square pipes (2) and polishing bodies (5); Two square sliding cavities (11) are arranged in the round seat (1) along the radial direction, and two square pipes (2) are symmetrically and slidingly inserted into the two sides of the square sliding cavities (11); Polishing bodies (5) are arranged at the ends of the square pipes (2) extending to the outside of the round seat (1); An adjusting mechanism (3) is arranged in the round seat (1), which is used to drive the two square pipes (2) to move closer to or farther away from each other; The polishing bodies (5) can be clamped on the outer edge or the inner edge of the pipe joint.

2. The electric power protection pipe joint edge trimming device according to claim 1, characterized in that: The polishing body (5) is composed of a horizontal part (51) and an arc-shaped part (52); The arc-shaped part (52) is arc-shaped, and its inner edge is matched with the outer edge wall of the pipe joint, and its outer edge is matched with the inner edge wall of the pipe joint; The arc-shaped part (52) is fixed on the horizontal part (51), and the horizontal part (51) is correspondingly fixed on the end of the square pipe (2); The whole cross section of the horizontal part (51) and the arc-shaped part (52) is T-shaped.

3. The electric power protection pipe joint edge trimming device according to claim 1, characterized in that: The adjusting mechanism (3) comprises a bracket (31), a bidirectional threaded rod (32) and a nut seat (33); A pair of brackets (31) are fixed in the sliding cavity (11), and the bidirectional threaded rod (32) extending along the radial direction of the round seat (1) is rotatably installed on the two brackets (31); The nut seat (33) is fixed in the square pipe (2); The two nut seats (33) are respectively threadedly matched and sleeved on the two sides of the bidirectional threaded rod (32); The round seat (1) is further provided with an adjusting device (4), which is used to drive the bidirectional threaded rod (32) to rotate and adjust.

4. The electric power protection pipe joint edge trimming device according to claim 3, characterized in that: The adjusting device (4) comprises a rotating shaft (41), a bevel gear A (42) and a bevel gear B (43); The round seat (1) is provided with an installation hole (401) communicating with the sliding cavity (11), and the rotating shaft (41) is rotatably installed in the installation hole (401); One end of the rotating shaft (41) extends to the outside of the round seat (1), and the other end extends into the sliding cavity (11) and is fixedly installed with the bevel gear A (42); The bevel gear B (43) is fixedly sleeved on the bidirectional threaded rod (32), and the bevel gear B (43) is correspondingly engaged with the bevel gear A (42).

5. The electric power protection pipe joint edge trimming device according to claim 4, characterized in that: A handle (411) is installed on the end of the rotating shaft (41) extending to the outside of the round seat (1).

6. The electric power protection pipe joint edge trimming device according to claim 1, characterized in that: The end of the round seat (1) is fixed with a handle (6), and the handle (6) has anti-skid lines.