Manual peeling device for oxygen barrier layer of easy-peeling oxygen barrier plastic pipe
By designing an easy-to-peel manual oxygen barrier layer peeler for oxygen-barrier plastic pipes, utilizing a ring-shaped openable structure and a double-blade cutting mechanism, the shortcomings of traditional tools in terms of precision, adaptability, and safety are solved, achieving efficient and precise oxygen barrier layer peeling and ensuring the integrity and safety of the pipe.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI WEIXING NOVEL BUILDING MATERIAL
- Filing Date
- 2025-08-01
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional tools suffer from insufficient precision, poor adaptability, and safety hazards when peeling off the oxygen barrier layer of oxygen-barrier plastic pipes. Furthermore, existing devices are complex in structure and bulky in size, making them difficult to operate in confined spaces. In addition, the oxygen barrier layer material is brittle and easily worn, leading to increased burrs on the cut or cracking of the pipe.
This manual peeler for easily peelable oxygen barrier plastic tubes features a ring-shaped, openable structure. It combines axial straight cutting and circumferential ring cutting with a two-stage cutting mechanism consisting of a ring-cutting blade assembly and a straight cutting blade assembly. Equipped with a blade depth adjustment device and barbed blades, it achieves precise control and easy peeling.
It improves peeling efficiency, avoids pipe damage, ensures sealing performance, adapts to different pipe specifications, reduces safety risks, and simplifies the operation process.
Smart Images
Figure CN224588204U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of plastic pipe peeling equipment, specifically relating to a manual peeler for easily peeling the oxygen barrier layer of oxygen-barrier plastic pipes. Background Technology
[0002] Oxygen-barrier plastic pipes are typically manufactured using multi-layer co-extrusion. The oxygen barrier layer isolates the pipe from oxygen penetration, preventing oxidation and corrosion. However, during construction, the pipe connections need to be peeled to remove the outer oxygen barrier layer, ensuring the sealing and reliability of the pipe connections. Traditional peeling operations often rely on general-purpose manual cutters or electrician's knives. These tools have the following limitations: Insufficient precision: Manual control of peeling depth can easily lead to residual oxygen barrier layer or over-cutting, damaging the load-bearing layer and reducing sealing performance or pipe strength; Poor adaptability: Oxygen-barrier pipes come in various specifications, and conventional tools lack quick adjustment mechanisms; Safety hazards: Uneven manual force can cause blade slippage, threatening operator safety. While some pipe-specific peeling devices exist, their complex structure and bulky size make them unsuitable for confined spaces and have limited compatibility with multi-layer pipe peeling. Furthermore, the oxygen barrier layer is brittle and hard, making traditional blades prone to wear and chipping, leading to increased burrs and even pipe cracking. Summary of the Invention
[0003] The purpose of this invention is to address the above-mentioned problems by providing a manual peeling tool for easily peeling off the oxygen barrier layer of oxygen-barrier plastic pipes.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: a manual peeling tool for easily peelable oxygen barrier plastic pipe oxygen barrier layer, comprising an annular cylinder having an upper half-ring and a lower half-ring movably connected. The annular cylinder has a pipe mounting cavity on its inner circumferential side, and several circumferentially distributed pipe limiting grooves arranged axially along the annular cylinder are provided on the outer circumferential side of the pipe mounting cavity. A ring-cutting blade assembly is provided within the pipe limiting grooves. An axially arranged sliding groove is provided on the outer side of the annular cylinder, and a straight-cutting blade assembly that moves along the length of the sliding groove is provided within the sliding groove. Furthermore, a blade depth adjustment device is provided on the outer side of the annular cylinder to allow the straight-cutting blade assembly to move along the annular cylinder direction into the pipe mounting cavity. Through the two-stage cutting mechanism of the ring-cutting blade assembly and the straight-cutting blade assembly, the excessive depth of the traditional ring-cutting blade in a single cut can be avoided. Simultaneously, peeling can be completed with a single push-pull and rotation, greatly shortening the operation time.
[0005] In the aforementioned manual peeling tool for easily peelable oxygen barrier plastic pipes, a hinge is provided between the upper and lower ring bodies on the same side. The side of the upper ring body away from the hinge and the side of the lower ring body away from the hinge have an opening or abut against each other. The hinge allows the upper and lower ring bodies to open and close, facilitating the installation of pipes of different sizes and improving practicality.
[0006] In the above-mentioned manual peeling tool for easily peelable oxygen barrier plastic pipe oxygen barrier layer, the number of pipe limiting grooves is at least three, the number of pipe limiting grooves on the upper half ring is two, and the number of pipe limiting grooves on the lower half ring is one.
[0007] In the aforementioned manual peeling tool for easily peelable oxygen barrier plastic pipe layers, the sliding groove is located on the upper ring body and between the two pipe limiting grooves. The sliding groove is centrally positioned for easy application of force by the operator.
[0008] In the aforementioned manual peeling tool for easily peelable oxygen barrier plastic pipe layers, the straight cutting blade assembly includes a V-shaped blade disposed within a sliding groove. One end of the V-shaped blade has a V-shaped tip, and the other end has a blade pushing part. The end of the blade pushing part away from the V-shaped tip protrudes outside the sliding groove, and a limiting block is provided on the outer side of one end of the sliding groove. The V-shaped blade is suitable for straight cutting, resulting in a sharper cutting edge. The blade pushing part is used to connect with a blade depth adjustment device, and the limiting block prevents the blade from excessively moving and dislodging from the sliding groove.
[0009] In the aforementioned manual peeling tool for easily peelable oxygen barrier plastic pipe oxygen barrier layer, the blade depth adjustment device includes an adjustment seat disposed on the outside of the annular cylinder and corresponding to the sliding groove. The sliding groove has a horizontal slide rail on the side away from the pipe installation cavity. The lower end of the adjustment seat is movably disposed in the horizontal slide rail and has a T-shaped structure with the annular cylinder. The end of the adjustment seat near the sliding groove is provided with a spring part connected to the blade pushing part, and the end of the adjustment seat away from the spring part is provided with a knob adjustment assembly that allows the spring part to move along the direction of the annular cylinder, thereby extending the V-shaped blade tip into the pipe installation cavity.
[0010] In the aforementioned manual peeling tool for easily peelable oxygen barrier plastic pipes, the knob adjustment assembly includes a knob located circumferentially outward from the end of the adjustment seat away from the spring portion. A connecting rod axially penetrates the adjustment seat and connects to the spring portion on the inner circumferential side of the knob portion. An axially positioned scale is located on the outer side of the adjustment seat near the knob portion, and a limiting boss is located on the end of the scale away from the knob portion. The knob portion controls the movement of the spring portion, which in turn drives the V-shaped blade deeper into the pipe installation cavity. The spring portion provides a certain buffering effect. Simultaneously, the knob portion, combined with the scale, transforms depth adjustment from a vague operation to quantitative control. Users can judge the blade extension length through the scale, solving the key problem of how to accurately control the cutting depth to avoid damaging the pipe body.
[0011] In the aforementioned manual peeling tool for easily peelable oxygen barrier plastic pipes, the annular cutting blade assembly includes a barbed blade disposed inside one end of a pipe limiting groove. One end of the barbed blade has a blade fixing part fixed to the pipe limiting groove, and the other end has a cutting tip. The end of the cutting tip, away from the blade fixing part, protrudes from the pipe limiting groove into the pipe mounting cavity. The protruding cutting tip of the barbed blade into the pipe mounting cavity is adapted to the requirement of annular cutting of the oxygen barrier layer. The barbed structure can slightly hook onto the oxygen barrier layer during cutting, preventing the blade from slipping, reflecting a targeted design for the core objective of easily peeling off the oxygen barrier layer.
[0012] In the aforementioned manual peeling tool for easily peelable oxygen barrier plastic pipe layers, the included angle of the cutting edge at the blade tip is 75°-90°, and the height adjustment range of the blade tip protruding from the inner wall of the pipe limiting groove is 0.2mm-1.0mm. A nano-ceramic coating is applied to the blade tip to improve wear resistance.
[0013] In the aforementioned manual peeling tool for easily peelable oxygen barrier plastic pipe layers, several rubber gaskets are detachably provided on the inner circumferential side of the annular cylinder, and the blade tip protrudes axially beyond the outer side of the rubber gaskets. The rubber gaskets protect the barbed and V-shaped blades, indirectly improving cutting accuracy and effectively supplementing the core structure. Simultaneously, the rubber gaskets also control the inner diameter and facilitate clamping.
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] The device adopts a ring-shaped openable structure. It uses a combination of axial straight cutting and circumferential ring cutting blades. During operation, it is only necessary to push and pull to cut open the oxygen barrier layer and then rotate it once to peel it off. At the same time, the depth of the straight cutting blade can be precisely controlled by the blade depth adjustment device, thereby improving the peeling efficiency and avoiding damage to the tube body. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a side view of the present invention.
[0018] Figure 3 This is a schematic diagram of the upper half of the ring in this utility model.
[0019] Figure 4 This is a schematic diagram of the lower half-ring structure in this utility model.
[0020] Figure 5 This is a schematic diagram of the depth adjustment device in this utility model.
[0021] In the diagram: 1. Annular cylinder; 11. Upper half-ring; 12. Lower half-ring; 13. Pipe mounting cavity; 14. Pipe limiting groove; 15. Sliding groove; 16. Hinge part; 17. Rubber gasket; 2. Annular cutting knife assembly; 21. Hook-shaped blade; 22. Blade fixing part; 23. Blade tip; 3. Straight cutting knife assembly; 31. V-shaped blade; 32. V-shaped blade tip; 33. Blade pushing part; 34. Limiting block; 4. Blade depth adjustment device; 41. Adjusting seat; 42. Horizontal slide; 43. Spring part; 5. Knob adjustment assembly; 51. Knob part; 52. Scale; 53. Limiting boss. Detailed Implementation
[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0023] like Figure 1-5 As shown, a manual peeling tool for easily peeling the oxygen barrier layer of oxygen-barrier plastic pipes includes an annular cylinder 1 with an upper half-ring 11 and a lower half-ring 12 movably connected. The annular cylinder 1 has a pipe mounting cavity 13 on its inner circumferential side. The pipe mounting cavity 13 has several circumferentially distributed pipe limiting grooves 14 arranged axially along the annular cylinder 1 on its outer circumferential side. A ring cutting blade assembly 2 is installed within the pipe limiting grooves 14. An axially arranged sliding groove 15 is provided on the outer side of the annular cylinder 1. The ring cutting blade assembly 2 moves along the length of the sliding groove 15 within the sliding groove 15. A blade depth adjustment device 4 is provided on the outer side of the annular cylinder 1, allowing a straight cutting blade assembly 3 to move along the direction of the annular cylinder 1 into the pipe mounting cavity 13. Through the two-stage cutting mechanism of the ring cutting blade assembly 2 and the straight cutting blade assembly 3, the excessive depth of the traditional ring cutting in one go can be avoided. Furthermore, peeling can be completed with a single push-pull and rotation, greatly shortening the operation time.
[0024] Combination Figures 1-4 As shown, a hinge portion 16 is provided between the upper half-ring 11 and the lower half-ring 12 on the same side. An opening or mutual abutment exists between the side of the upper half-ring 11 away from the hinge portion 16 and the side of the lower half-ring 12 away from the hinge portion 16. The upper half-ring 11 and the lower half-ring 12 can be opened and closed via the hinge portion 16, which is beneficial for the installation of pipes of different sizes and improves practicality.
[0025] The number of pipe limiting grooves 14 is at least three, the number of pipe limiting grooves 14 on the upper half ring 11 is two, and the number of pipe limiting grooves 14 on the lower half ring 12 is one.
[0026] Specifically, the sliding groove 15 is located on the upper half of the ring 11 and between the two pipe limiting grooves 14. The sliding groove 15 is centrally located, making it easy for the operator to apply force.
[0027] Specifically, the straight cutting blade assembly 3 includes a V-shaped blade 31 disposed within a sliding groove 15. One end of the V-shaped blade 31 has a V-shaped tip 32, and the other end has a blade pushing part 33. The end of the blade pushing part 33 away from the V-shaped tip 32 protrudes to the outside of the sliding groove 15, and a limiting block 34 is provided on the outer side of one end of the sliding groove 15. The V-shaped blade 31 is suitable for straight cutting, resulting in a sharper cutting edge. The blade pushing part 33 is used to connect to the blade depth adjustment device 4, and the limiting block 34 prevents the blade from excessively moving and dislodging from the sliding groove 15.
[0028] Combination Figure 1 and Figure 5 As shown, the blade depth adjustment device 4 includes an adjustment seat 41 disposed on the outside of the annular cylinder 1 and corresponding to the sliding groove 15. The sliding groove 15 is provided with a horizontal slide 42 on the side away from the pipe mounting cavity 13. The lower end of the adjustment seat 41 is movably disposed in the horizontal slide 42 and has a T-shaped structure with the annular cylinder 1. The end of the adjustment seat 41 near the sliding groove 15 is provided with a spring part 43 connected to the blade pushing part 33, and the end of the adjustment seat 41 away from the spring part 43 is provided with a knob adjustment assembly 5 that can move the spring part 43 along the direction of the annular cylinder 1 so that the V-shaped blade tip part 32 extends into the pipe mounting cavity 13.
[0029] The knob adjustment assembly 5 includes a knob part 51 located circumferentially outward from the end of the adjustment seat 41 away from the spring part 43. A connecting rod axially passes through the adjustment seat 41 and connects to the spring part 43 on the inner side of the knob part 51. An axially positioned scale 52 is located on the outer side of the adjustment seat 41 near the knob part 51, and a limiting boss 53 is located on the end of the scale 52 away from the knob part 51. The knob part 51 controls the movement of the spring part 43, which in turn drives the V-shaped blade 31 deeper into the pipe installation cavity 13. The spring part 43 provides a certain buffering effect. The combination of the knob part 51 and the scale 52 transforms depth adjustment from a vague operation to quantitative control. Users can judge the blade extension length through the scale, solving the key problem of how to accurately control the cutting depth to avoid damage to the pipe body.
[0030] Combination Figure 2 and Figure 4 As shown, the annular cutting blade assembly 2 includes a barbed blade 21 disposed inside one end of the pipe limiting groove 14. One end of the barbed blade 21 has a blade fixing part 22 fixed to the pipe limiting groove 14, and the other end has a cutting tip 23. The end of the cutting tip 23 away from the blade fixing part 22 protrudes from the pipe limiting groove 14 into the pipe mounting cavity 13. The cutting tip 23 of the barbed blade 21 protrudes into the pipe mounting cavity 13, adapting to the requirement of annular cutting of the oxygen barrier layer. The barbed structure can slightly hook onto the oxygen barrier layer during cutting, preventing blade slippage. This reflects a targeted design for the core objective of easily peeling off the oxygen barrier layer.
[0031] The blade tip 23 has an included angle of 75°-90°, and the height of the blade tip 23 protruding from the inner wall of the tube limiting groove 14 can be adjusted from 0.2mm to 1.0mm. The blade tip 23 has a nano-ceramic coating to improve wear resistance.
[0032] Meanwhile, several rubber gaskets 17 are detachably provided on the inner side of the annular cylinder 1, and the cutting tip 23 protrudes axially from the outer side of the rubber gaskets 17. The rubber gaskets 17 can protect the barbed blade 21 and the V-shaped blade 31, indirectly improving the cutting accuracy and serving as an effective auxiliary supplement to the core structure. At the same time, the rubber gaskets 17 also play a role in controlling the inner diameter and facilitating clamping.
[0033] The principle of this embodiment is as follows:
[0034] Open the annular cylinder 1, place the pipe into the pipe installation cavity 13, then close the annular cylinder 1. Select the corresponding scale setting according to the pipe specifications, rotate the knob 51 to control the V-shaped blade 31 to descend, then push the adjusting seat 41 to slide along the horizontal slide 42 to form a longitudinal guide cut. Then rotate the annular cylinder 360°, and the barbed blade 21 completes the circumferential cut. Finally, tear off the oxygen barrier layer along the cut. If there are no obvious scratches on the inner pipe surface, it is considered qualified.
[0035] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0036] Although this document frequently uses terms such as annular cylinder 1, upper half-ring 11, lower half-ring 12, pipe mounting cavity 13, pipe limiting groove 14, sliding groove 15, hinge part 16, rubber gasket 17, annular cutting knife assembly 2, barbed blade 21, blade fixing part 22, blade tip part 23, straight cutting knife assembly 3, V-shaped blade 31, V-shaped blade tip part 32, blade pushing part 33, limiting block 34, blade depth adjustment device 4, adjusting seat 41, horizontal slide 42, spring part 43, knob adjustment assembly 5, knob part 51, scale 52, limiting boss 53, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.
Claims
1. A manual peeling tool for easily peelable oxygen barrier plastic pipe oxygen barrier layer, comprising an annular cylinder (1) having an upper half-ring (11) and a lower half-ring (12) movably connected, characterized in that, The annular cylinder (1) has a pipe mounting cavity (13) on its inner circumferential side. The pipe mounting cavity (13) has several circumferentially distributed pipe limiting grooves (14) arranged along the axial direction of the annular cylinder (1) on its outer circumferential side. The pipe limiting groove (14) is provided with an annular cutting knife assembly (2). The annular cylinder (1) is provided with an axially arranged sliding groove (15). The sliding groove (15) is provided with a straight cutting knife assembly (3) that moves along the length of the sliding groove (15). The annular cylinder (1) is provided with a blade depth adjustment device (4) that allows the straight cutting knife assembly (3) to move along the direction of the annular cylinder (1) into the pipe mounting cavity (13).
2. The manual peeling tool for the oxygen barrier layer of an easily peelable oxygen barrier plastic pipe according to claim 1, characterized in that, A hinge portion (16) is provided between the upper half ring (11) and the lower half ring (12) on the same side. The side of the upper half ring (11) away from the hinge portion (16) and the side of the lower half ring (12) away from the hinge portion (16) have an opening or abut against each other.
3. The manual peeling tool for the oxygen barrier layer of an easily peelable oxygen barrier plastic pipe according to claim 2, characterized in that, The number of pipe limiting grooves (14) is at least three, the number of pipe limiting grooves (14) on the upper half ring (11) is two, and the number of pipe limiting grooves (14) on the lower half ring (12) is one.
4. The manual peeling tool for the oxygen barrier layer of an easily peelable oxygen barrier plastic tube according to claim 3, characterized in that, The sliding groove (15) is provided on the upper half ring (11) and located between the two pipe limiting grooves (14).
5. A manual peeling tool for the oxygen barrier layer of an easily peelable oxygen barrier plastic tube according to claim 1, 2, 3, or 4, characterized in that, The straight cutting knife assembly (3) includes a V-shaped blade (31) disposed in a sliding groove (15). One end of the V-shaped blade (31) has a V-shaped tip (32) and the other end has a blade pushing part (33). The blade pushing part (33) protrudes to the outside of the sliding groove (15) at the end away from the V-shaped tip (32), and a limiting block (34) is provided on the outside of one end of the sliding groove (15).
6. The manual peeling tool for the oxygen barrier layer of an easily peelable oxygen barrier plastic pipe according to claim 5, characterized in that, The blade depth adjustment device (4) includes an adjustment seat (41) disposed on the outside of the annular cylinder (1) and corresponding to the sliding groove (15). The sliding groove (15) is provided with a horizontal slide (42) on the side away from the pipe installation cavity (13). The lower end of the adjustment seat (41) is movably disposed in the horizontal slide (42) and has a T-shaped structure with the annular cylinder (1). The end of the adjustment seat (41) near the sliding groove (15) is provided with a spring part (43) connected to the blade pushing part (33). The end of the adjustment seat (41) away from the spring part (43) is provided with a knob adjustment assembly (5) that allows the spring part (43) to move along the direction of the annular cylinder (1) so that the V-shaped blade tip part (32) extends into the pipe installation cavity (13).
7. A manual peeling tool for the oxygen barrier layer of an easily peelable oxygen barrier plastic tube according to claim 6, characterized in that, The knob adjustment assembly (5) includes a knob part (51) located on the outer side of the adjustment seat (41) away from the spring part (43). The knob part (51) is provided with a connecting rod that axially penetrates the adjustment seat (41) and connects to the spring part (43) on the inner side. The adjustment seat (41) is provided with an axially arranged scale (52) on the outer side of the end near the knob part (51), and a limiting boss (53) is provided on the end of the scale (52) away from the knob part (51).
8. A manual peeling tool for the oxygen barrier layer of an easily peelable oxygen barrier plastic tube according to claim 1, 2, or 3, characterized in that, The ring cutting knife assembly (2) includes a barbed blade (21) disposed on the inner side of one end of the pipe limiting groove (14). One end of the barbed blade (21) is provided with a blade fixing part (22) fixed to the pipe limiting groove (14), and the other end is provided with a cutting tip (23). The cutting tip (23) protrudes from the pipe limiting groove (14) into the pipe mounting cavity (13) away from the blade fixing part (22).
9. A manual peeling tool for the oxygen barrier layer of an easily peelable oxygen barrier plastic tube according to claim 8, characterized in that, The included angle of the cutting edge of the blade tip (23) is 75°-90°, and the height adjustment range of the blade tip (23) protruding from the inner wall of the pipe limiting groove (14) is 0.2mm-1.0mm.
10. A manual peeling tool for the oxygen barrier layer of an easily peelable oxygen barrier plastic tube according to claim 9, characterized in that, The annular cylinder (1) is provided with several rubber pads (17) detachably on its inner circumferential side, and the blade tip (23) protrudes axially from the outer side of the rubber pads (17).