Scraper for processing inner wall of communication tube shell device
By designing a multi-blade structure for cleaning the inner wall of communication tube housings, and utilizing a combination of an outer support plate and a limiting wheel, the problems of incomplete burr removal and hand scratches are solved, achieving efficient and safe inner wall cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU ALL-WIN PRECISION MASCH CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-14
AI Technical Summary
Existing technologies are ineffective at removing burrs with high connection strength when cleaning the inner wall of communication tubes and devices, and the scraping process can easily cut hands.
A scraper for treating the inner wall of a communication tube housing device was designed. It adopts a multi-scraper structure and ensures that the scraper is in close contact with the inner wall through the combination of an outer support plate, a right-angled trapezoidal plate and a limiting wheel. Combined with the constraint of the limiting wheel, it prevents scratches.
It achieves fast and effective burr removal, avoids scratches during the scraping process, and improves the cleaning effect.
Smart Images

Figure CN224115329U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical processing and post-processing technology, and in particular to a scraper for processing the inner wall of a communication tube shell device. Background Technology
[0002] Tubular communication devices generally consist of a tube and a convex ring formed on the tube, with some tubes having a tapered outer circumference. These workpieces are machined by CNC machine tools, and after machining, burrs and other defects often form on the inner wall of the tube. These defects affect their use, such as causing cable damage. Therefore, some defective inner walls of the workpiece need to be treated after machining. The existing method is to scrape them off with a scraper. While this method easily removes burrs with weak adhesion, it is difficult to remove burrs with strong adhesion. Furthermore, using such scrapers can easily cause hand cuts. Utility Model Content
[0003] This utility model provides a scraper for treating the inner wall of a communication tube housing device, which solves the shortcomings of the prior art, addresses the problem of poor cleaning effect on the inner wall of the workpiece, and facilitates scraping operation, thus having strong practicality.
[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:
[0005] A scraper for treating the inner wall of a communication tube housing includes an upper plate with at least two pairs of oblong holes arranged in a circumferential array on the upper plate. A connecting screw is inserted into the oblong holes, and a vertical member is threaded to the lower end of the connecting screw. A scraper is provided on the outer wall of the vertical member. A T-shaped plate is threaded to the upper end of each pair of connecting screws. An inner shaft is provided on the outer end of the T-shaped plate, and an outer top wheel is rotatably mounted on the inner shaft.
[0006] An upper extension column is coaxially formed on the upper plate, and a clamping screw is provided on the upper extension column. A pressure head is connected to the clamping screw by a thread. An outer support plate is rotatably provided on the clamping screw. Right-angled trapezoidal plates are formed in a circular array on the outer periphery of the outer support plate. The outer periphery of the outer top wheel is tangent to the hypotenuse of the right-angled trapezoidal plates. The lower end of the pressure head acts on the upper side of the outer support plate to lock the outer support plate.
[0007] Furthermore, multiple protrusions are welded onto the outer support plate.
[0008] Furthermore, a pair of gripping rods are welded onto the outer periphery of the pressure head.
[0009] Furthermore, the upper plate has multiple pairs of strip holes and multiple medium-length holes arranged in a circumferential array. The medium-length holes are located between the strip holes, and a movable vertical rod passes through the medium-length holes. The lower end of the movable vertical rod is fixed with a first limiting ring by a pin. A limiting wheel is rotatably provided at the lower end of the movable vertical rod. An annular groove is provided on the outer circumference of the limiting wheel. A limiting nut is threadedly connected to the lower end of the movable vertical rod. The limiting nut is located below the limiting wheel. A second limiting ring is fixed to the upper end of the movable vertical rod by a pin. A pair of connecting screws are threadedly connected to the second limiting ring. The connecting screws pass through the strip holes. The upper end of each pair of connecting screws is threadedly connected to an upper plate. An inner pressure push plate is tangent to the outer circumference of the connecting screws. A hinge rod is welded to the inner pressure push plate. The hinge rod is rotatably mounted on the upper plate. A constraint nut is threadedly connected to the lower end of the hinge rod. The constraint nut is located below the upper plate.
[0010] Furthermore, a limiting pin is provided on one side of the inner pressure push plate, and the limiting pin is fixed on the upper plate.
[0011] The advantages of the above technical solution are:
[0012] This utility model uses multiple scrapers that can quickly remove burrs when rotated. During the scraping process, the scraper can be moved outward by the outer support plate and the right-angled trapezoidal plate, and the scraper blades can be kept in close contact with the inner wall of the pipe during the cleaning process, thereby improving the cleaning effect.
[0013] In order to rotate the pipe fitting and ensure that each scraper adheres tightly to the pipe fitting, this utility model is equipped with a limiting wheel. In this way, the pipe fitting can be constrained to avoid unnecessary scratches on the inner wall of the pipe fitting during scraping. Attached Figure Description
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in further detail below with reference to the accompanying drawings.
[0015] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .
[0016] Figure 2 A three-dimensional structure of one embodiment is shown. Figure 2 . Detailed Implementation
[0017] like Figures 1-2As shown, a scraper for cleaning the inner wall of a communication tube housing includes an upper plate 1. At least two pairs of oblong holes 12 are arranged in a circumferential array on the upper plate 1. Connecting screws 2 pass through the oblong holes 12. The lower end of the connecting screws 2 is threadedly connected to a vertical member 20. A scraper 21 is provided on the outer wall of the vertical member 20. The upper end of each pair of connecting screws 2 is threadedly connected to a T-shaped plate 22. An inner shaft 23 is provided on the outer end of the T-shaped plate 22. An outer top wheel 24 is rotatably mounted on the inner shaft 23. By setting multiple scrapers 21, the inner wall of the tube housing 8 can be easily cleaned when it rotates.
[0018] An upper extension column is coaxially formed on the upper plate 1. A clamping screw 25 is provided on the upper extension column. A pressure head 26 is threadedly connected to the clamping screw 25. A pair of holding rods 27 are welded to the outer periphery of the pressure head 26. An outer support plate 3 is rotatably provided on the clamping screw 25. Multiple protrusions 31 are welded to the outer support plate 3. Right-angled trapezoidal plates 30 are formed in a circular array on the outer periphery of the outer support plate 3. The outer periphery of the outer top wheel 24 is tangent to the hypotenuse of the right-angled trapezoidal plate 30. The lower end of the pressure head 26 acts on the upper side of the outer support plate 3 to lock the outer support plate 3. When the outer support plate rotates, the right-angled trapezoidal plate 30 on it can be used to move the outer top wheel 24 and the scraper 21 outward, so that the scraper 21 can facilitate the cleaning operation of the inner wall of the pipe fitting 8. The pressure head 26 can fix the rotation angle of the outer support plate 3 to ensure the tight contact between the blade of the scraper 21 and the inner wall of the pipe fitting 8 during the scraping process.
[0019] The upper plate 1 has multiple pairs of strip holes 10 and multiple medium-length holes 11 arranged in a circular array. The medium-length holes 11 are located between the strip holes 10. A movable vertical rod 4 passes through the medium-length holes 11. The lower end of the movable vertical rod 4 is fixed with a first limiting ring 40 by a pin. A limiting wheel 41 is rotatably provided at the lower end of the movable vertical rod 4. A ring groove 43 is formed on the outer circumference of the limiting wheel 41. The lower end of the movable vertical rod 4 is connected to a limiting nut 42 by a thread. The limiting nut 42 is located below the limiting wheel 41. The upper end of the movable vertical rod 4 is fixed with a second limiting nut by a pin. Ring 44, the second limiting ring 44 is threaded with a pair of connecting screws 460, the connecting screws 460 passing through the strip hole 10, the upper end of each pair of connecting screws 460 is threaded to an upper end plate 46, the outer periphery of the connecting screws 460 is tangential to an inner pressure push plate 48, the inner end of the inner pressure push plate 48 is in contact with the outer periphery of the upper end plate 46, a hinge rod 47 is welded to the inner pressure push plate 48, the hinge rod 47 is rotatably mounted on the upper plate 1, the lower end of the hinge rod 47 is threaded to a constraint nut, the constraint nut is located on the lower side of the upper plate 1. A limiting pin 49 is provided on one side of the inner pressure push plate 48, the limiting pin 49 is fixed to the upper plate 1. In order to make the circumference of the annular groove 43 on the limiting wheel 41 tangent to the outer circumference of the convex ring 80, an inner pressure push plate 48 is provided. By rotating the plate 48, the limiting wheel 41 is brought closer to the convex ring 80, and the limiting wheel 41 and the convex ring 80 are connected. The limiting wheel 41 is used for limiting, and the relative rotation of the pipe fitting 8 and the scraper can be performed during the cleaning process, which facilitates the scraping operation.
[0020] In this embodiment, the operator places the pipe fitting 8 onto the scraper 21 and then rotates each inner pressure push plate 48 until the rotation is limited by the limit pin 49. When the inner pressure push plate 48 rotates, it can cause the upper end plate 46 to move inward, so that the outer periphery of the convex ring 80 and the outer periphery of the annular groove 43 are tangent.
[0021] Next, the operator rotates the outer support plate 3 through the protrusion 31. When the outer support plate 3 rotates, it will drive the right-angled trapezoidal plate 30 to rotate. When the right-angled trapezoidal plate 30 rotates, its inclined surface will act on the outer top wheel 24, causing it to move outward. During the movement, it will drive the scraper 21 to move outward, and make the blade of the scraper 21 tangent to the inner wall of the pipe fitting 8.
[0022] Then, by rotating the pipe fitting 8, the inner wall of the pipe fitting 8 can be cleaned by the scraper 21. After the cleaning is completed, the pipe fitting 8 can be removed.
[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A scraper for treating the inner wall of a communication tube housing device, characterized in that, The upper plate (1) is provided with at least two pairs of waist-shaped holes (12) arranged in a circular array. A connecting screw (2) is inserted into the waist-shaped hole (12). A vertical member (20) is connected to the lower end of the connecting screw (2) by a thread. A scraper (21) is provided on the outer wall of the vertical member (20). A T-shaped plate (22) is connected to the upper end of each pair of connecting screws (2) by a thread. An inner shaft (23) is provided on the outer end of the T-shaped plate (22). An outer top wheel (24) is rotatably provided on the inner shaft (23). The upper plate (1) has an upper extension column coaxially formed on it. The upper extension column is provided with a clamping screw (25). The clamping screw (25) is connected to a pressure head (26) by a thread. The clamping screw (25) is rotatably provided with an outer support plate (3). The outer periphery of the outer support plate (3) is formed with right-angled trapezoidal plates (30) in a circular array. The outer periphery of the outer top wheel (24) is tangent to the hypotenuse of the right-angled trapezoidal plate (30). The lower end of the pressure head (26) acts on the upper side of the outer support plate (3) to lock the outer support plate (3).
2. The scraper for treating the inner wall of a communication tube housing device according to claim 1, characterized in that, Multiple protrusions (31) are welded onto the outer support plate (3).
3. The scraper for treating the inner wall of a communication tube housing device according to claim 1, characterized in that, A pair of gripping rods (27) are welded to the outer periphery of the pressure head (26).
4. The scraper for treating the inner wall of a communication tube housing device according to claim 1, characterized in that, The upper plate (1) has multiple pairs of strip holes (10) and multiple medium-length holes (11) arranged in a circular array. The medium-length holes (11) are located between the strip holes (10). A movable vertical rod (4) is inserted through the medium-length holes (11). The lower end of the movable vertical rod (4) is fixed with a first limiting ring (40) by a pin. A limiting wheel (41) is rotatably provided at the lower end of the movable vertical rod (4). A ring groove (43) is opened on the outer circumference of the limiting wheel (41). A limiting nut (42) is threadedly connected to the lower end of the movable vertical rod (4). The limiting nut (42) is located on the lower side of the limiting wheel (41). The upper end is fixed with a second limiting ring (44) by a pin. A pair of connecting screws (460) are connected to the second limiting ring (44) by a thread. The connecting screws (460) pass through the strip hole (10). The upper end of each pair of connecting screws (460) is connected to an upper plate (46) by a thread. The outer periphery of the connecting screws (460) is tangent to an inner pressure push plate (48). A hinge rod (47) is welded on the inner pressure push plate (48). The hinge rod (47) is rotatably mounted on the upper plate (1). The lower end of the hinge rod (47) is connected to a constraint nut by a thread. The constraint nut is located on the lower side of the upper plate (1).
5. The scraper for treating the inner wall of a communication tube housing device according to claim 4, characterized in that, A limiting pin (49) is provided on one side of the inner pressure push plate (48), and the limiting pin (49) is fixed on the upper plate (1).