PE pipe scraper assembly

Abstract

The utility model relates to a PE pipe scraper assembly which comprises a fixed ring and a rotating ring, a positioning scraping mechanism is arranged in the fixed ring, an auxiliary assembly is arranged in the rotating ring, the positioning scraping mechanism comprises two first threaded rods which are in threaded connection with the interior of the fixed ring, and the two first threaded rods are in threaded connection with the interior of the rotating ring. The opposite sides of the two first threaded rods are rotationally connected with abutting blocks, and the right side of the fixing ring is rotationally connected with a rotating ring. According to the PE pipe scraper assembly, the first threaded rod can be rotated to adjust the relative position of the two abutting blocks, and the fixing ring is installed on pipe fittings of different models and different sizes; and then, the scraper body can be attached to the outer walls of pipe fittings of different models through telescopic adjustment of the telescopic rod in the rotating ring, meanwhile, the inclination angle of the scraper body can be adjusted, so that an oxide layer on the surface of a PE pipe can be rapidly and effectively scraped away along with rotation of the rotating ring, and the practicability and applicability of the device are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipeline tools, in particular to a PE pipe scraper component. Background Art

[0002] A good pipeline should not only have good economy, but also have a series of advantages such as stable and reliable interface, material impact resistance, crack resistance, aging resistance, corrosion resistance, etc. Compared with traditional pipes, PE pipes have the advantages of good low-temperature impact resistance, good stress cracking resistance, chemical corrosion resistance, etc. Before electric hot melting of PE pipes, the oxide layer and contaminants on the surface of the pipe need to be cleaned. People generally use scrapers for operation, which can easily scrape off the oxide layer on the surface of small-diameter PE pipes.

[0003] A PE pipe scraper assembly is proposed in the patent document with the announcement number CN108638159B, which includes a fixed ring sleeved on the PE pipe, on which a positioning assembly for limiting the relative position of the fixed ring and the PE pipe is arranged; a movable ring is rotatably sleeved on the outer circumference of the fixed ring, and a scraper is arranged on the end face of the movable ring away from the positioning assembly...; the above scheme can effectively limit the circumferential position and axial position of the PE pipe scraper assembly on the PE pipe through the fixed ring, and rotating the movable ring can effectively drive the scraper to perform circular motion on the outside of the PE pipe, thereby scraping off the outer layer of the large-diameter PE pipe at a specific axial position at one time, which is more convenient to use.

[0004] However, a problem with the above embodiment is that the size of the fixing ring and the position of the scraper are fixed, and it can only clean PE pipes of fixed size, and is not suitable for PE pipes of different models and sizes. It has low applicability and certain limitations when used. In view of this, the present application proposes a PE pipe scraper assembly. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a PE pipe scraper assembly, which has the function of installing a fixing ring on pipe fittings of different models and sizes, and adjusting the position and inclination of the scraper body to achieve the scraping of the oxide layer of PE pipes of different models and sizes, effectively enhancing the practicality and applicability of the device, and solving the problem that the PE pipe scraper assembly in the prior art can only clean PE pipes of fixed sizes, cannot be applied to PE pipes of different models and sizes, has low applicability, and has certain limitations when used.

[0006] To achieve the above object, the utility model provides the following technical solutions: a PE pipe scraper assembly, comprising a fixed ring and a rotating ring, wherein a positioning scraping mechanism is arranged inside the fixed ring, and an auxiliary assembly is arranged inside the rotating ring;

[0007] The positioning and scraping mechanism comprises a first threaded rod threadedly connected inside a fixed ring, and the number of the first threaded rods is two, and the two first threaded rods are rotatably connected to a stop block on one side opposite to the other, and the right side of the fixed ring is rotatably connected to a rotating ring, and the interior of the rotating ring is slidably connected to two telescopic rods;

[0008] A limit assembly for limiting the movement of the telescopic rod is arranged inside the rotating ring, a movable frame is fixedly connected to the bottom of the telescopic rod, a mounting plate is fixedly connected to the bottom of the movable frame, a scraper body is slidably connected inside the mounting plate, and a sliding groove for determining the movement trajectory of the scraper body is opened inside the mounting plate.

[0009] Furthermore, a limiting rod slidably matched with the fixing ring is fixedly connected to the separated sides of the two stop blocks, and an anti-slip pad is fixedly connected to the side of the stop block away from the first threaded rod.

[0010] Furthermore, the left side of the rotating ring is fixedly connected to a limiting ring, and the right side of the fixed ring is provided with a limiting sliding groove slidably matched with the limiting ring.

[0011] Furthermore, one end of the first threaded rod away from the stop block is fixedly connected to a hand wheel, and a plurality of handles are fixedly connected to the outer side of the rotating ring.

[0012] Furthermore, the limiting assembly includes a positioning rod slidably connected to the inside of the rotating ring, and the positioning rod passes through the telescopic rod. The outer side of the positioning rod is sleeved with an extrusion spring fixedly connected to the rotating ring.

[0013] Furthermore, a pull ring is fixedly connected to the right side of the positioning rod, and a plurality of positioning holes are provided inside the telescopic rod, and the positioning holes are slidably matched with the positioning rod.

[0014] Furthermore, the auxiliary component comprises a rotating sleeve rotatably connected inside the mounting plate, and the internal thread of the rotating sleeve is connected to a second threaded rod hinged to the scraper body.

[0015] Furthermore, a limiting ring is fixedly connected to the outer side of the rotating sleeve, and a limiting sliding groove which is slidably matched with the limiting ring and the rotating sleeve is provided inside the mounting plate.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. The PE pipe scraper assembly can rotate the first threaded rod to adjust the relative positions of the two blocks through the positioning and scraping mechanism, so that when the block contacts the pipe fitting, the fixed ring can be positioned and installed, thereby facilitating the installation of the fixed ring on pipe fittings of different models and sizes; then, the position of the scraper body can be changed by adjusting the telescopic rod in the rotating ring, so that the scraper body can fit the outer wall of pipe fittings of different models, and the oxide layer can be scraped off as the rotating ring rotates, so that the oxide layer on the surface of the PE pipe can be scraped off quickly and effectively, thereby effectively improving the practicality and applicability of the device.

[0018] 2. The PE pipe scraper assembly can operate the rotating sleeve to rotate through the auxiliary assembly, so that the second threaded rod can move up and down in the rotating sleeve, so that the second threaded rod drives the scraper body to move in the sliding groove, thereby adjusting the inclination angle of the scraper body according to the needs of different types of pipes, thereby further enhancing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the abutment block of the utility model;

[0021] Figure 3 It is a side sectional view of the mounting plate of the utility model;

[0022] Figure 4 For this utility model Figure 1 Schematic diagram of the structure at A in the middle.

[0023] In the figure: 1. fixed ring; 2. first threaded rod; 3. stop block; 301. anti-slip pad; 4. limit rod; 5. hand wheel; 6. rotating ring; 601. limit ring; 7. handle; 8. telescopic rod; 9. movable frame; 10. mounting plate; 1001. sliding groove; 11. rotating sleeve; 12. second threaded rod; 13. scraper body; 14. pull ring; 15. positioning rod; 16. extrusion spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4A PE pipe scraper assembly in this embodiment includes a fixed ring 1 and a rotating ring 6. A positioning scraping mechanism is arranged inside the fixed ring 1, and an auxiliary assembly is arranged inside the rotating ring 6.

[0026] Embodiment 1: The positioning and scraping mechanism includes a first threaded rod 2 connected to an internal thread of a fixed ring 1, and the number of the first threaded rods 2 is two. The end of the first threaded rod 2 away from the stop block 3 is fixedly connected to a hand wheel 5, so that the rotation of the first threaded rod 2 can be conveniently controlled by operating the hand wheel 5. The opposite sides of the two first threaded rods 2 are both rotatably connected to the stop blocks 3, and the separated sides of the two stop blocks 3 are both fixedly connected to a limit rod 4 that is slidably adapted to the fixed ring 1, so that the limit rod 4 can be used to limit the rotation of the stop blocks 3.

[0027] Among them, a non-slip pad 301 is fixedly connected to the side of the block 3 away from the first threaded rod 2, so that the non-slip pad 301 can be used to increase friction and improve the clamping stability of the block 3 on the pipe. A rotating ring 6 is rotatably connected to the right side of the fixed ring 1, and a plurality of handles 7 are fixedly connected to the outer side of the rotating ring 6, so that the user can control the rotation of the rotating ring 6 through the handles 7.

[0028] Among them, the left side of the rotating ring 6 is fixedly connected to the limit ring 601, and the right side of the fixed ring 1 is provided with a limit slide groove that is slidably adapted to the limit ring 601, so as to facilitate the use of the limit slide groove to limit the limit ring 601 and maintain the stable rotation of the rotating ring 6. The inside of the rotating ring 6 is slidably connected with two telescopic rods 8.

[0029] In this embodiment, a limiting assembly for limiting the movement of the telescopic rod 8 is provided inside the rotating ring 6. The limiting assembly includes a positioning rod 15 slidably connected to the inside of the rotating ring 6, and the positioning rod 15 passes through the telescopic rod 8. An extrusion spring 16 fixedly connected to the rotating ring 6 is provided on the outer side of the positioning rod 15, so that the positioning rod 15 can move into the rotating ring 6 under the push of the extrusion spring 16. A pull ring 14 is fixedly connected to the right side of the positioning rod 15, so that the positioning rod 15 can be pulled outward using the pull ring 14.

[0030] Among them, a plurality of positioning holes are opened inside the telescopic rod 8, and the positioning holes are slidably adapted to the positioning rod 15, so that the positioning rod 15 can pass through the telescopic rod 8 using the positioning holes, thereby limiting the upward and downward movement of the telescopic rod 8. The bottom of the telescopic rod 8 is fixedly connected to a movable frame 9, and the bottom of the movable frame 9 is fixedly connected to a mounting plate 10. The interior of the mounting plate 10 is slidably connected to a scraper body 13, and the interior of the mounting plate 10 is opened with a sliding groove 1001 for determining the movement trajectory of the scraper body 13.

[0031] It should be noted that the PE pipe scraper assembly can rotate the first threaded rod 2 to adjust the relative positions of the two blocks 3 through the positioning and scraping mechanism, so that when the blocks 3 contact the pipe fittings, the fixed ring 1 can be positioned and installed, thereby facilitating the installation of the fixed ring 1 on pipe fittings of different models and sizes; thereafter, the position of the scraper body 13 can be changed by adjusting the telescopic rod 8 in the rotating ring 6, so that the scraper body 13 can be conveniently fitted to the outer walls of pipe fittings of different models, and the oxide layer can be scraped off as the rotating ring 6 rotates, so that the oxide layer on the surface of the PE pipe can be scraped off quickly and effectively, thereby effectively improving the practicability and applicability of the device.

[0032] Embodiment 2: The auxiliary component includes a rotating sleeve 11 rotatably connected to the inside of the mounting plate 10, and a limiting ring is fixedly connected to the outside of the rotating sleeve 11. A limiting groove that is slidably matched with the limiting ring and the rotating sleeve 11 is opened inside the mounting plate 10, so that the limiting groove can be used to limit the limiting ring and the rotating sleeve 11, so that the rotating sleeve 11 can rotate at a predetermined position of the mounting plate 10.

[0033] Among them, the internal thread connection of the rotating sleeve 11 is connected to the second threaded rod 12 hinged to the scraper body 13, so that the second threaded rod 12 can move in the vertical direction as the rotating sleeve 11 rotates, and then pull the scraper body 13 to slide in the sliding groove 1001, thereby achieving the effect of changing the inclination angle of the scraper body 13.

[0034] The PE pipe scraper assembly can operate the rotating sleeve 11 to rotate through the auxiliary components, so that the second threaded rod 12 can move up and down in the rotating sleeve 11, so that the second threaded rod 12 drives the scraper body 13 to move in the sliding groove 1001, thereby adjusting the inclination angle of the scraper body 13, thereby facilitating the adjustment of the inclination angle of the scraper body 13 according to the needs of different types of pipes, further enhancing the practicality of the device.

[0035] The working principle of the above embodiment is:

[0036] The PE pipe scraper assembly first needs to put the fixed ring 1 and the rotating ring 6 on the pipe, and then control the first threaded rod 2 to rotate by operating the hand wheel 5, so that the two blocks 3 move to the opposite side to clamp the pipe, so that the fixed ring 1 is installed on the pipe, and then the position of the telescopic rod 8 in the rotating ring 6 can be adjusted according to the size of the pipe, so that the movable frame 9 drives the mounting plate 10 to move downward, so that the scraper body 13 fits the outer wall of the pipe. In this process, the rotating sleeve 11 can also be rotated to make the second threaded rod 12 move in the vertical direction, so that the second threaded rod 12 pulls the scraper body 13 to slide in the sliding groove 1001, so as to achieve the effect of changing the inclination angle of the scraper body 13, thereby making the scraper suitable for pipes of different models and sizes. Finally, the user controls the rotating ring 6 to rotate through the handle 7, so as to quickly and effectively perform the scraping operation of the oxide layer on the surface of the PE pipe.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PE pipe scraper assembly, comprising a fixed ring (1) and a rotating ring (6), characterized in that: A positioning and scraping mechanism is arranged inside the fixed ring (1), and an auxiliary component is arranged inside the rotating ring (6); The positioning and scraping mechanism comprises a first threaded rod (2) threadedly connected to the interior of a fixed ring (1), and the number of the first threaded rods (2) is two, and the two first threaded rods (2) are rotatably connected to a stopper (3) on opposite sides, and the right side of the fixed ring (1) is rotatably connected to a rotating ring (6), and the interior of the rotating ring (6) is slidably connected to two telescopic rods (8); A limiting assembly for limiting the movement of the telescopic rod (8) is arranged inside the rotating ring (6); a movable frame (9) is fixedly connected to the bottom of the telescopic rod (8); a mounting plate (10) is fixedly connected to the bottom of the movable frame (9); a scraper body (13) is slidably connected inside the mounting plate (10); a sliding groove (1001) for determining the movement trajectory of the scraper body (13) is provided inside the mounting plate (10).

2. A PE pipe scraper assembly according to claim 1, characterized in that: The two opposing sides of the two stoppers (3) are both fixedly connected with a limit rod (4) slidably matched with the fixing ring (1), and the side of the stoppers (3) away from the first threaded rod (2) is fixedly connected with an anti-slip pad (301).

3. A PE pipe scraper assembly according to claim 1, characterized in that: The left side of the rotating ring (6) is fixedly connected to a limiting ring (601), and the right side of the fixed ring (1) is provided with a limiting sliding groove that is slidably matched with the limiting ring (601).

4. A PE pipe scraper assembly according to claim 1, characterized in that: One end of the first threaded rod (2) away from the stop block (3) is fixedly connected to a hand wheel (5), and a plurality of handles (7) are fixedly connected to the outer side of the rotating ring (6).

5. A PE pipe scraper assembly according to claim 1, characterized in that: The limiting assembly comprises a positioning rod (15) slidably connected inside the rotating ring (6), and the positioning rod (15) passes through the telescopic rod (8), and an extrusion spring (16) fixedly connected to the rotating ring (6) is sleeved on the outer side of the positioning rod (15).

6. A PE pipe scraper assembly according to claim 5, characterized in that: A pull ring (14) is fixedly connected to the right side of the positioning rod (15), and a plurality of positioning holes are provided inside the telescopic rod (8), and the positioning holes are slidably matched with the positioning rod (15).

7. A PE pipe scraper assembly according to claim 1, characterized in that: The auxiliary component comprises a rotating sleeve (11) rotatably connected inside the mounting plate (10), and the internal thread of the rotating sleeve (11) is connected to a second threaded rod (12) hingedly connected to the scraper body (13).

8. A PE pipe scraper assembly according to claim 7, characterized in that: A limiting ring is fixedly connected to the outer side of the rotating sleeve (11), and a limiting sliding groove which is slidably matched with the limiting ring and the rotating sleeve (11) is provided inside the mounting plate (10).

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