Depth scraping device for oxide layer on outer wall of PE pipe

Abstract

The utility model relates to the technical field of PE pipe oxidation layer scraping, and discloses a PE pipe outer wall oxidation layer depth scraping device which comprises a supporting frame used for supporting a main body, an inner cavity pipe is rotatably connected to the inner wall of the left end of the supporting frame, and a first adjusting ring is in threaded connection with the outer wall of the inner cavity pipe. The bottom end of the first adjusting ring is connected with a moving ring through a transmission set, supporting rods are rotationally connected to the four sides of the outer wall of the moving ring, the opposite ends of the supporting rods are connected with a scraping knife and a fixing pipe for supporting the pipe wall through a traction set, and the bottom end of the fixing pipe is rotationally connected with a second adjusting ring. According to the pipeline scraping device, the scraping knife can be accurately adjusted according to the thickness of an oxide layer on the outer wall of a pipeline, the cutting uniformity and quality are guaranteed, it is guaranteed that the rolling wheels are tightly attached to the inner wall of the pipeline, the stability of the device is improved, and it is guaranteed that the device makes full contact with the inner wall of the pipeline, so that stable supporting is provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to PE pipe oxide layer scraping technical field especially relates to a kind of PE pipe outer wall oxide layer depth scraping device. BACKGROUND

[0002] PE pipe can form a layer of oxide layer on its outer wall during long-term use or storage, which has no direct impact on the performance and service life of PE pipe, but in some application scenarios, such as hot melt welding or electric fusion welding, in order to ensure the welding quality, the oxide layer needs to be removed. Generally, the methods for removing the oxide layer on the outer wall of PE pipe include manual scraping and flame melting to remove the oxide layer on the outer wall of the pipe.

[0003] When scraping the oxide layer on the surface of PE pipe, manual tools such as scrapers and sandpaper are used to scrape the oxide layer on the outer wall of PE pipe, which is simple to operate and low in cost, but the scraping efficiency is low, the labor intensity is large, the scraping depth is not easy to control, permanent damage is caused, the performance and life of the pipeline are affected, and due to human factors, the quality of scraping is inconsistent, affecting the reliability of subsequent processing or installation. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art and provides a PE pipe outer wall oxide layer depth scraping device, which can accurately adjust the scraping knife according to the thickness of the oxide layer on the outer wall of the pipeline, ensure the close fit of the rolling wheel and the inner wall of the pipeline, and improve the stability of the device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A PE pipe outer wall oxide layer depth scraping device, comprising:

[0007] The support frame serves as the main support, the inner wall of the left end of the support frame is rotationally connected with an inner cavity pipe, the outer wall of the inner cavity pipe is threadedly connected with a first adjusting ring, the bottom end of the first adjusting ring is connected with a moving ring through a transmission group, the outer wall of the moving ring is rotationally connected with a support rod on four sides, and the opposite end of the support rod is connected with a scraping knife through a traction group;

[0008] The fixed pipe serves as the pipe wall support, the bottom end of the fixed pipe is rotationally connected with a second adjusting ring, the inner wall of the second adjusting ring is connected with a plurality of bidirectional screws through a gear group, the outer wall of the rod body of the bidirectional screw is threadedly connected with a moving block at the upper and lower ends, the outer wall of the opposite end of the moving block is slidingly connected to the inner wall of the fixed pipe, and the opposite end of the moving block is connected with a fit wheel frame through a fixing group.

[0009] Further, the support frame top end inner wall is fixedly connected with a driving motor, the driving motor driving end is fixedly connected with a first gear, the first gear outer wall is meshedly connected with a first internal tooth ring, and the first internal tooth ring inner wall is fixedly connected to the inner cavity pipe top end outer wall.

[0010] Further, the transmission group comprises a transfer ring rotatably connected to the bottom end of the first adjusting ring, the transfer ring inner wall is slidably connected to the outer wall of the inner cavity pipe, and the transfer ring bottom end is fixedly connected to the top end of the moving ring.

[0011] Further, the traction group comprises contraction frames rotatably connected to the opposite ends of the support rods, the inner cavity pipe bottom end outer wall is fixedly connected with a fixed ring, the fixed ring outer wall four sides upper and lower ends are rotatably connected with connecting rods, and the opposite ends of the connecting rods are rotatably connected to the opposite ends of the contraction frames, respectively.

[0012] Further, the opposite end bottom sides of the contraction frames are detachably connected with mounting bolts, and the scraping cutter top end inner wall is matched with the outer wall of the mounting bolt.

[0013] Further, the support frame inner wall rear end upper and lower sides are both installed with suction fans, the support frame inner wall is fixedly connected with filter screens corresponding to the front ends of the suction fans, the support frame front end outer wall is slidably connected with a sliding door, the support frame right end is installed with a control handle, and the support frame left end inner wall is fixedly connected with a collecting hopper.

[0014] Further, the gear group comprises a second internal tooth ring fixedly connected to the top end inner wall of the second adjusting ring, the bottom ends of the bidirectional screws are fixedly connected with second gears, and the second internal tooth ring and the second gears are meshedly connected.

[0015] Further, the fixed group comprises inner shrinking plates rotatably connected to the opposite ends of the moving blocks, the opposite ends of the inner shrinking plates are rotatably connected to the upper and lower sides of the opposite ends of the matching wheel frames, and the opposite ends of the matching wheel frames are installed with a plurality of rolling wheels.

[0016] The utility model has the advantages of the following beneficial effects:

[0017] 1、 in the utility model, through the rotation of the first adjusting ring, the moving distance of the moving ring can be accurately controlled, so that the fine adjustment of the support rod and the contraction frame is realized, the scraping cutter can be accurately adjusted according to the thickness of the oxidation layer of the pipe outer wall, the uniformity and quality of cutting are guaranteed, and the uniform cutting effect not only improves the work efficiency, but also guarantees the surface quality of the pipe outer wall.

[0018] 2、 The utility model discloses, through the rotation of second adjusting ring, can accurate control the rotation of bidirectional screw rod, thereby realize the fine adjustment of moving block, ensure the close adhesion of rolling wheel and pipeline inner wall, improve the stability of device, ensure the full contact of device and pipeline inner wall, thereby provide stable support, improve the stability of cutting process, still reduce the vibration of equipment in the operation, ensure the precision and quality of cutting. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A kind of PE pipe outer wall oxide layer depth scraping device is proposed for the utility model, and a perspective view is shown in the figure;

[0020] Figure 2 A kind of PE pipe outer wall oxide layer depth scraping device is proposed for the utility model, and a sliding door half sectional view is shown in the figure;

[0021] Figure 3 A kind of PE pipe outer wall oxide layer depth scraping device is proposed for the utility model, and a support frame sectional view is shown in the figure;

[0022] Figure 4 A kind of PE pipe outer wall oxide layer depth scraping device is proposed for the utility model, and an inner cavity tube half sectional view is shown in the figure;

[0023] Figure 5 A kind of PE pipe outer wall oxide layer depth scraping device is proposed for the utility model, and a scraping knife sectional view is shown in the figure;

[0024] Figure 6 A kind of PE pipe outer wall oxide layer depth scraping device is proposed for the utility model, and a fixed tube half sectional view is shown in the figure;

[0025] Figure 7 A kind of PE pipe outer wall oxide layer depth scraping device is proposed for the utility model, and a half sectional view of the fit wheel frame is shown in the figure.

[0026] LEGEND:

[0027] 1, support frame;2, control handle;3, sliding door;4, inner cavity tube;5, drive motor;6, collection hopper;7, filter screen;8, first gear;9, first inner tooth ring;10, first adjusting ring;11, adapter ring;12, moving ring;13, fixed ring;14, retraction frame;15, scraping knife;16, suction fan;17, support rod;18, mounting bolt;19, connecting rod;20, fixed tube;21, second adjusting ring;22, second inner tooth ring;23, second gear;24, bidirectional screw rod;25, moving block;26, inner shrink plate;27, fit wheel frame. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] With reference to Figure 1 , Figure 4 and Figure 5 , the utility model provides an embodiment: a kind of PE pipe outer wall oxide layer depth scraping device, including as main support effect support frame 1, inner cavity pipe 4 is rotatably connected in support frame 1 left end inner wall, first adjusting ring 10 is screw-connected on the outer wall of inner cavity pipe 4, the adapter ring 11 of first adjusting ring 10 bottom end rotatably connected, adapter ring 11 inner wall is slidably connected in the outer wall of inner cavity pipe 4, adapter ring 11 bottom end is fixedly connected in the top end of moving ring 12, the outer wall of moving ring 12 four sides is rotatably connected with support rod 17, the opposite end of support rod 17 is rotatably connected with retractable frame 14, the outer wall of fixed ring 13 is fixedly connected with the bottom of inner cavity pipe 4, the outer wall of fixed ring 13 four sides is rotatably connected with connecting rod 19 on upper and lower ends, the opposite end of connecting rod 19 is rotatably connected in the opposite end of retractable frame 14, the bottom side of the opposite end of retractable frame 14 is rotatably connected with mounting bolt 18, and the inner wall of scraping knife 15 top end is matched with the outer wall of mounting bolt 18.

[0030] Specifically: when rotating first adjusting ring 10, adapter ring 11 will move and drive moving ring 12 to move along the outer wall of inner cavity pipe 4, with the movement of moving ring 12, it will drive support rod 17 to stretch out, so that retractable frame 14 is supported outward under the cooperation of connecting rod 19, so that connecting rod 19 is retracted inward or supported outward, and the scraping knife 15 connected to retractable frame 14 can be adjusted according to the thickness of the oxidation layer on the outer wall of the pipeline, and the oxidation layer is accurately cut.

[0031] With reference to Figure 2 and Figure 3 , the inner wall of the top end of support frame 1 is fixedly connected with driving motor 5, the driving end of driving motor 5 is fixedly connected with first gear 8, first gear 8 outer wall is engagedly connected with first inner tooth ring 9, the inner wall of first inner tooth ring 9 is fixedly connected in the top end outer wall of inner cavity pipe 4, suction fan 16 is installed on the inner wall of support frame 1 rear end upper and lower sides, filter screen 7 is fixedly connected with suction fan 16 front end on the inner wall of support frame 1, sliding door 3 is slidably connected on the outer wall of support frame 1 front end, control handle 2 is installed on the right end of support frame 1, and collecting hopper 6 is fixedly connected on the inner wall of support frame 1 left end.

[0032] Specifically: using the control handle 2 to start the drive motor 5 to drive the first gear 8 to rotate the first inner tooth ring 9 at a speed of 1000 RPM, the first inner tooth ring 9 drives the inner cavity tube 4 to rotate, so that the scraping knife 15 provided at the inner cavity tube 4 rotates to cut the oxidation layer on the outer wall of the pipe, and the rotating mounting bolt 18 allows the scraping knife 15 to be detached from the retraction frame 14, facilitating the replacement of the scraping knife 15, and when cutting, the control handle 2 is used to start the suction fan 16 to generate suction, a negative pressure cavity is formed in the support frame 1, the collecting bucket 6 collects the cuttings generated by the oxidation layer and filters them at the filter screen 7, and after the work is completed, the sliding door 3 is opened, the cuttings can be discharged from the support frame 1.

[0033] Referring to Figure 6 and Figure 7 , as a pipe wall supporting fixed pipe 20, the bottom end of the fixed pipe 20 is rotatably connected with the second adjusting ring 21, the inner wall of the top end of the second adjusting ring 21 is fixedly connected with the second inner tooth ring 22, the bottom end of the bidirectional screw rod 24 is fixedly connected with the second gear 23, the second inner tooth ring 22 and the second gear 23 are meshingly connected, the outer wall of the rod body of the bidirectional screw rod 24 is threadedly connected with the moving block 25 at the upper and lower ends, the outer wall of the opposite end of the moving block 25 is slidingly connected in the inner wall of the fixed pipe 20, the opposite end of the moving block 25 is rotatably connected with the retraction plate 26, and the opposite end of the retraction plate 26 is rotatably connected with the upper and lower sides of the opposite end of the abutting wheel frame 27, and the opposite end of the abutting wheel frame 27 is provided with a plurality of rolling wheels.

[0034] Specifically: when the fixed pipe 20 is started, it is sleeved on the pipe to be cut, at this time, by rotating the second adjusting ring 21, the second inner tooth ring 22 drives the second gear 23 to rotate the bidirectional screw rod 24, the rotation of the bidirectional screw rod 24 causes the moving block 25 to shrink inward, thereby extruding the retraction plate 26, after the retraction plate 26 is extruded, it will push the rolling wheels at the abutting wheel frame 27 to tightly abut on the inner wall of the pipe, ensuring that the device is in full contact with the inner wall of the pipe, providing stable support for subsequent cutting operation.

[0035] Working principle: when the fixed pipe 20 starts, let the fixed pipe 20 install in the pipe to be cut, rotate the second adjusting ring 21 and make the second inner tooth ring 22 drive the second gear 23 to rotate the bidirectional screw rod 24, so that the bidirectional screw rod 24 drives the moving block 25 to shrink inward, let the moving block 25 extrude the inner shrink plate 26, make the inner shrink plate 26 let the rolling wheel at the wheel frame 27 adhere to the pipe wall, and rotate the first adjusting ring 10 to make the adapter ring 11 drive the moving ring 12, so that the moving ring 12 moves along the outer wall of the inner cavity pipe 4, so that the moving ring 12 drives the support rod 17 to support outward, makes the connecting rod 19 shrink inward or support outward under the cooperation of the connecting rod 19, so that the scraping cutter 15 connected at the shrink frame 14 can be adjusted according to the thickness of the oxidation layer of the pipe wall and cut.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solution recorded in the foregoing embodiments, or to the equivalent replacement of some technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A device for deep scraping of the oxide layer on the outer wall of a PE pipe, characterized in that, include: The support frame (1), which serves as the main support, has an inner tube (4) rotatably connected to the inner wall of the left end of the support frame (1). The outer wall of the inner tube (4) is threaded with a first adjusting ring (10). The bottom end of the first adjusting ring (10) is connected to a moving ring (12) through a transmission group. The four sides of the outer wall of the moving ring (12) are rotatably connected with support rods (17). The opposite end of the support rod (17) is connected to a scraper (15) through a traction group. As a fixed pipe (20) supporting the pipe wall, the bottom end of the fixed pipe (20) is rotatably connected to a second adjusting ring (21). The inner wall of the second adjusting ring (21) is connected to several bidirectional screws (24) through a gear set. The upper and lower ends of the outer wall of the bidirectional screws (24) are threaded with moving blocks (25). The outer wall of the opposite end of the moving block (25) is slidably connected to the inner wall of the fixed pipe (20). The opposite end of the moving block (25) is connected to a fitting wheel frame (27) through a fixed set.

2. The device for deep scraping of the oxide layer on the outer wall of a PE pipe according to claim 1, characterized in that: A drive motor (5) is fixedly connected to the inner wall of the top end of the support frame (1). A first gear (8) is fixedly connected to the drive end of the drive motor (5). A first internal gear ring (9) is meshed with the outer wall of the first gear (8). The inner wall of the first internal gear ring (9) is fixedly connected to the outer wall of the top end of the inner cavity tube (4).

3. The device for deep scraping of the oxide layer on the outer wall of a PE pipe according to claim 1, characterized in that: The transmission assembly includes a transition ring (11) rotatably connected to the bottom end of the first adjusting ring (10). The inner wall of the transition ring (11) is slidably connected to the outer wall of the inner cavity tube (4), and the bottom end of the transition ring (11) is fixedly connected to the top end of the moving ring (12).

4. The device for deep scraping of the oxide layer on the outer wall of a PE pipe according to claim 1, characterized in that: The traction assembly includes a retractable frame (14) rotatably connected to the opposite ends of the support rod (17). A fixing ring (13) is fixedly connected to the outer wall of the bottom end of the inner tube (4). Connecting rods (19) are rotatably connected to the upper and lower ends of the four sides of the outer wall of the fixing ring (13). The opposite ends of the connecting rods (19) are rotatably connected to the opposite ends of the retractable frame (14).

5. The device for deep scraping of the oxide layer on the outer wall of a PE pipe according to claim 4, characterized in that: The bottom side of the opposite end of the shrink frame (14) is detachably connected with mounting bolts (18), and the inner wall of the top of the scraper (15) fits into the outer wall of the mounting bolts (18).

6. The device for deep scraping of the oxide layer on the outer wall of a PE pipe according to claim 1, characterized in that: Suction fans (16) are installed on both the upper and lower sides of the inner wall of the support frame (1). A filter screen (7) is fixedly connected to the inner wall of the support frame (1) corresponding to the front end of the suction fan (16). A sliding door (3) is slidably connected to the outer wall of the front end of the support frame (1). A control handle (2) is installed on the right end of the support frame (1). A collection hopper (6) is fixedly connected to the inner wall of the left end of the support frame (1).

7. The device for deep scraping of the oxide layer on the outer wall of a PE pipe according to claim 1, characterized in that: The gear set includes a second internal gear ring (22) fixedly connected to the inner wall of the top end of the second adjusting ring (21), and a second gear (23) fixedly connected to the bottom end of the bidirectional screw (24). The second internal gear ring (22) and the second gear (23) are meshed together.

8. The device for deep scraping of the oxide layer on the outer wall of a PE pipe according to claim 1, characterized in that: The fixed assembly includes an inner shrink plate (26) rotatably connected to one end of the moving block (25). The inner shrink plate (26) is rotatably connected to the upper and lower sides of the opposite end of the fitting wheel frame (27). The fitting wheel frame (27) has several rolling wheels installed at one end.

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