PE pipe oxide layer scraper and method

Abstract

The present invention relates to a PE pipe oxide layer scraper, comprising a rotating rod, a telescopic transmission rod 1, a telescopic transmission rod 2, a threaded rod, a fixed four-corner hinge seat, a support rod 1, a rotating shaft seat, a support rod 2, a rotating shaft slider, a scraper and a movable four-corner hinge seat; the rotating rod is connected to the threaded rod by threads; the rotating rod is connected to the telescopic transmission rod 1 by a J-hook structure; the telescopic transmission rod 2 is sleeved on the threaded rod and connected to the threaded rod by threads. The beneficial effects of the present invention are: the present invention realizes the contraction and extension of the telescopic support structure through the movement of the rotating rod, the telescopic transmission rod 1, the telescopic transmission rod 2, the threaded rod and other structures, and at the same time, the scraper position is adjustable, and PE pipes with different pipe diameters and wall thicknesses can be scraped, the structure is reasonable, the scraping quality is high, it is easy to use, time-saving and labor-saving, and has strong applicability.

Description

Technical Field

[0001] The invention relates to a scraper, in particular to a scraper and a method for scraping an oxide layer of a PE pipe. Background Art

[0002] When PE pipes are connected by electric fusion, the oxide layer at the connection part needs to be scraped off first. The traditional scraper needs to manually control the direction and strength of the scraper, and the scraping quality of the oxide layer is poor. Therefore, it is necessary to design a PE pipe oxide layer scraper and method. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a PE pipe oxide layer scraper and method.

[0004] The PE pipe oxide layer scraper comprises a rotating rod, a telescopic transmission rod 1, a telescopic transmission rod 2, a threaded rod, a fixed four-corner hinge seat, a support rod 1, a rotating shaft seat, a support rod 2, a rotating shaft slider, a scraper and a movable four-corner hinge seat; the rotating rod is connected to the threaded rod through a thread; the rotating rod is connected to the telescopic transmission rod 1 through a J-hook structure; the telescopic transmission rod 2 is sleeved on the threaded rod and connected to the threaded rod through a thread; the threaded rod is sleeved with a movable four-corner hinge seat, and the movable four-corner hinge seat is matched with one end of the telescopic transmission rod 2, and the thread The outer end of the pattern rod is connected to the fixed four-corner hinge seat by welding; the movable four-corner hinge seat and the fixed four-corner hinge seat are respectively hinged to the inner end of the cross-hinged support rod one, the outer end of the support rod one is movably connected to the support rod two through the rotating shaft seat and the rotating shaft slider, and the fixed four-corner hinge seat, the support rod one, the rotating shaft seat, the support rod two, the rotating shaft slider and the movable four-corner hinge seat constitute a retractable supporting structure; the scraper is fixed to the scraper fixed vertical rod of the rotating rod by the fixing screws and the scraper fixed horizontal rod, and the fixing screws, the rotating rod and the scraper constitute an adjustable scraper structure.

[0005] As a preferred embodiment: the retractable transmission rod 2 is composed of two transmission arc-shaped long wings and a hollow cylinder, and a plurality of transmission arc-shaped long wings are provided at one end of the hollow cylinder; the movable four-corner hinge seat is composed of a T-shaped hollow cylinder and a rotating shaft seat, and a plurality of rotating shaft seats are provided on the T-shaped hollow cylinder, and the inner surface of the T-shaped hollow cylinder is a smooth plane.

[0006] As a preferred embodiment, the circular protrusion of the T-shaped hollow cylinder is embedded in the cavity of the hollow cylinder, and the contact surfaces are all smooth planes.

[0007] As a preferred embodiment, the telescopic transmission rod 1 is composed of a transmission arc long wing 1 and a J-shaped groove structure, one end of the J-shaped groove structure is provided with a plurality of transmission arc long wings 1, and the transmission arc long wing 1 is staggeredly connected with the transmission arc long wing 2 of the telescopic transmission rod 2.

[0008] Preferably, the rotating rod consists of a threaded inner rod, a J-shaped hook structure, an annular protrusion and a scraper fixed vertical rod. The external thread of the threaded inner rod is cooperated and connected with the internal thread groove of the threaded rod. A J-shaped hook structure is provided at the end of the threaded inner rod. An annular protrusion is provided on the threaded inner rod near the J-shaped hook structure. The J-shaped hook structure is fixedly connected to the scraper fixed vertical rod. A rotating handle is provided at one end of the scraper fixed vertical rod.

[0009] Preferably, the telescopic support structure is symmetrical with respect to the threaded rod.

[0010] As a preferred embodiment: the movable four-corner hinge seat and the rotating shaft seat of the fixed four-corner hinge seat are respectively hingedly connected to the support rod one; the T-shaped slideway of the support rod two is matched and connected with the I-shaped rotating shaft slider; the rotating shaft slider is hingedly connected to the support rod one through the rotating shaft seat.

[0011] The working method of the PE pipe oxide layer scraper comprises the following steps:

[0012] S1. The handle is rotated to drive the rotating rod, and the rotating rod drives the telescopic transmission rod 1 to rotate through the J-hook structure. The telescopic transmission rod 1 drives the telescopic transmission rod 2 to rotate. The telescopic transmission rod 2 moves along the axial direction of the threaded rod while rotating, thereby pushing the telescopic support structure to extend and retract;

[0013] S2, when the support rod 2 of the telescopic support structure is in close contact with the inner wall of the PE pipe, the rotating rod is separated from the telescopic transmission rod 1;

[0014] S3. Adjust the position of the scraper, drive the rotating rod by rotating the handle, and scrape the outer wall of the PE pipe with the scraper. The rotating rod moves along the axial direction of the PE pipe while rotating, thereby scraping all the PE oxide layers within a specified distance from the PE pipe port.

[0015] The beneficial effects of the present invention are as follows: the present invention realizes the contraction and extension of the telescopic support structure through the movement of the rotating rod, the telescopic transmission rod 1, the telescopic transmission rod 2, the threaded rod and other structures; at the same time, the scraper position is adjustable, and PE pipes with different diameters and wall thicknesses can be scraped; the structure is reasonable, the scraping quality is high, the use is convenient, time-saving and labor-saving, and the applicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall assembly diagram of the PE pipe oxide layer scraper;

[0017] Figure 2 is an assembly relationship diagram of the telescopic transmission rod 2 and the threaded rod;

[0018] Figure 3 is an assembly relationship diagram of the telescopic transmission rod 1 and the telescopic transmission rod 2;

[0019] Figure 4is an assembly relationship diagram of a rotating rod and a telescopic transmission rod;

[0020] Figure 5 The figure is an assembly relationship diagram of the support rod 1, the rotating shaft seat, the support rod 2 and the rotating shaft slider;

[0021] Figure 6 Schematic diagram of the rotating rod structure.

[0022] Explanation of the reference numerals: 1-rotating handle; 2-fixing screw; 3-rotating rod; 31-annular protrusion; 32-J-shaped hook structure; 4-retractable transmission rod one; 41-transmission arc-shaped long wing one; 5-retractable transmission rod two; 51-transmission arc-shaped long wing two; 52-hollow cylinder; 6-threaded rod; 7-fixed four-corner hinge seat; 8-support rod one; 9-rotating shaft seat; 10-support rod two; 11-rotating shaft slider; 12-scraper; 13-movable four-corner hinge seat; 131-T-shaped hollow cylinder. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with embodiments. The description of the following embodiments is only used to help understand the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and modifications may be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0024] Embodiment 1

[0025] like Figure 1As shown, the first embodiment of the present application provides a PE pipe oxide layer scraper, including a rotating rod 3, a telescopic transmission rod 1 4, a telescopic transmission rod 2 5, a threaded rod 6, a fixed four-corner hinge seat 7, a support rod 1 8, a rotating shaft seat 9, a support rod 2 10, a rotating shaft slider 11, a scraper 12 and a movable four-corner hinge seat 13. The rotating rod 3 and the threaded rod 6 are connected by threads to perform relative movement, and the external thread of the rotating rod 3 can be screwed into the internal thread groove of the threaded rod 6; the rotating rod 3 and the telescopic transmission rod 1 4 are connected by a J-hook structure to achieve circumferential linkage, or to be separated and move separately; the telescopic transmission rod 2 5 is sleeved on the threaded rod 6 and is connected to the threaded rod 6 by threads, and the telescopic transmission rod 2 5 can rotate on the threaded rod 6 and move along the axial direction of the threaded rod 6; the threaded rod 6 is sleeved with a movable four-corner hinge seat 13, and the movable four-corner hinge seat 13 is matched with one end of the telescopic transmission rod 2 5, and the outer end of the threaded rod 6 is connected to the fixed The four-corner hinge seats 7 are connected together by welding; the movable four-corner hinge seats 13 and the fixed four-corner hinge seats 7 are respectively hinged to the inner ends of the cross-hinged support rod 1 8, and the outer ends of the support rod 1 8 are movably connected to the support rod 2 10 through the rotating shaft seat 9 and the rotating shaft slider 11. The fixed four-corner hinge seat 7, the support rod 1 8, the rotating shaft seat 9, the support rod 2 10, the rotating shaft slider 11 and the movable four-corner hinge seat 13 form a retractable supporting structure; the scraper 12 is fixed to the scraper fixed vertical rod of the rotating rod 3 by the fixing screw 2 and the scraper fixed horizontal rod, and the fixing screw 2, the rotating rod 3 and the scraper 12 form an adjustable scraper structure.

[0026] Embodiment 2

[0027] Embodiment 2 of the present application provides a more specific PE pipe oxide layer scraper, and the specific structure is as follows:

[0028] like Figure 2 As shown, the telescopic transmission rod 2 5 is composed of a transmission arc long wing 2 51 and a hollow cylinder 52, and one end of the hollow cylinder 52 is provided with a plurality of transmission arc long wings 2 51; the movable four-corner hinge seat 13 is composed of a T-shaped hollow cylinder 131 and a rotating shaft seat 9, and four rotating shaft seats 9 are provided on the T-shaped hollow cylinder 131. The inner surface of the T-shaped hollow cylinder 131 is a smooth plane, and is in common socket connection with the telescopic transmission rod 1 4; the circular protrusion of the T-shaped hollow cylinder 131 is nested in the cavity of the hollow cylinder 52, and the contact surfaces are all smooth surfaces. When the telescopic transmission rod 2 5 moves axially along the threaded rod 6, it pushes the movable four-corner hinge seat 13 to move axially, and the telescopic transmission rod 2 5 rotates and translates at the same time, and the movable four-corner hinge seat 13 only translates but does not rotate.

[0029] like Figure 3As shown, the telescopic transmission rod 1 4 is composed of a transmission arc long wing 1 41 and a J-shaped groove structure. A plurality of transmission arc long wings 1 41 are provided at one end of the J-shaped groove structure. The transmission arc long wings 1 41 are staggeredly connected with the transmission arc long wings 2 51 of the telescopic transmission rod 2 5. When the telescopic transmission rod 1 4 drives the telescopic transmission rod 2 5 to rotate, it can make axial relative movement.

[0030] like Figure 4 , 6 As shown, the rotating rod 3 is composed of a threaded inner rod, a J-shaped hook structure 32, an annular protrusion 31 and a scraper fixed vertical rod. The threaded inner rod is connected to the threaded rod 6 by threads. A J-shaped hook structure 32 is provided at the end of the threaded inner rod. An annular protrusion 31 is provided on the threaded inner rod near the J-shaped hook structure 32. The J-shaped hook structure 32 is fixedly connected to the scraper fixed vertical rod. A rotating handle 1 is provided at one end of the scraper fixed vertical rod; the retractable transmission rod 4 can move axially along the rotating rod 3 between the right end face of the J-shaped hook structure 32 and the left end face of the annular protrusion 31 to realize the connection and disconnection of the bayonet.

[0031] like Figure 5 As shown, the telescopic support structure is symmetrical with respect to the threaded rod 6; the movable four-corner hinge seat 13 and the rotating shaft seat 9 of the fixed four-corner hinge seat 7 are hingedly connected to the support rod 1 8; the T-shaped slideway of the support rod 2 10 is matched with the I-shaped rotating shaft slider 11 to realize the sliding of the rotating shaft slider 11 in the support rod 2 10; the rotating shaft slider 11 is hinged to the support rod 1 8 through the rotating shaft seat 9 to realize the contraction and extension of the telescopic support structure.

[0032] Embodiment 3

[0033] The third embodiment of the present application provides a working method of a PE pipe oxide layer scraper: the rotating rod 3 is driven by rotating the handle 1, and the rotating rod 3 drives the telescopic transmission rod 1 4 to rotate through the J-hook structure 32, and the telescopic transmission rod 1 4 drives the telescopic transmission rod 2 5 to rotate, and the telescopic transmission rod 2 5 moves along the axial direction of the threaded rod 6 while rotating, thereby pushing the telescopic support structure to extend and contract; when the telescopic support structure is tightly supported on the inner wall of the PE pipe, the rotating rod 3 is disengaged from the telescopic transmission rod 1 4, and the position of the scraper 12 is adjusted, and the rotating rod 3 is driven by rotating the handle 1, and the outer wall of the PE pipe can be scraped by the scraper 12, and when the rotating rod 3 performs a rotational motion, it can simultaneously move along the axial direction of the PE pipe, thereby scraping all the PE oxide layers within a specified distance of the PE pipe port. The telescopic support structure and the adjustable scraper structure enable the PE pipe oxide layer scraper to scrape PE pipes of different diameters and wall thicknesses.

Claims

1. A PE pipe oxide layer scraper, characterized in that: The invention comprises a rotating rod (3), a telescopic transmission rod 1 (4), a telescopic transmission rod 2 (5), a threaded rod (6), a fixed four-corner hinge seat (7), a support rod 1 (8), a rotating shaft seat (9), a support rod 2 (10), a rotating shaft slider (11), a scraper (12) and a movable four-corner hinge seat (13); the rotating rod (3) is connected to the threaded rod (6) by threads; the rotating rod (3) is connected to the telescopic transmission rod 1 (4) by a J-shaped hook structure (32); the telescopic transmission rod 2 (5) is sleeved on the threaded rod (6) and is threadedly connected to the threaded rod (6); the threaded rod (6) is sleeved with a movable four-corner hinge seat (13), and the movable four-corner hinge seat (13) The movable four-corner hinge seat (13) is connected with one end of the telescopic transmission rod 2 (5), and the outer end of the threaded rod (6) is connected with the fixed four-corner hinge seat (7) by welding; the movable four-corner hinge seat (13) and the fixed four-corner hinge seat (7) are respectively hinged with the inner end of the cross-hinged support rod 1 (8), and the outer end of the support rod 1 (8) is movably connected with the support rod 2 (10) through the rotating shaft seat (9) and the rotating shaft slider (11); the fixed four-corner hinge seat (7), the support rod 1 (8), the rotating shaft seat (9), the support rod 2 (10), the rotating shaft slider (11) and the movable four-corner hinge seat (13) form a telescopic support structure; the scraper (12) is fixed by the fixing screw (2) and the scraper fixing screw (2). The fixed horizontal rod is fixed on the scraper fixing vertical rod of the rotating rod (3), and the fixing screw (2), the rotating rod (3) and the scraper (12) form an adjustable scraper structure; the telescopic transmission rod (5) is composed of a transmission arc-shaped long wing (51) and a hollow cylinder (52), and one end of the hollow cylinder (52) is provided with a plurality of transmission arc-shaped long wings (51); the movable four-corner hinge seat (13) is composed of a T-shaped hollow cylinder (131) and a rotating shaft seat (9), and a plurality of rotating shaft seats (9) are provided on the T-shaped hollow cylinder (131), and the inner surface of the T-shaped hollow cylinder (131) is a smooth plane; the telescopic transmission rod (4) is composed of a transmission arc-shaped long wing (41) and a J-shaped groove joint. The invention relates to a scraper-scraper-fixing device, wherein a plurality of transmission arc-shaped long wings (41) are arranged at one end of the J-shaped groove structure, and the transmission arc-shaped long wings (41) are staggeredly connected with the transmission arc-shaped long wings (51) of the telescopic transmission rod (5); the rotating rod (3) is composed of a threaded inner rod, a J-shaped hook structure (32), an annular protrusion (31) and a scraper-fixing vertical rod, the external thread of the threaded inner rod is matched and connected with the internal thread groove of the threaded rod (6), the end of the threaded inner rod is provided with a J-shaped hook structure (32), and the threaded inner rod is provided with an annular protrusion (31) near the J-shaped hook structure (32), the J-shaped hook structure (32) is fixedly connected to the scraper-fixing vertical rod, and a rotating handle (1) is arranged at one end of the scraper-fixing vertical rod.

2. The PE pipe oxide layer scraper according to claim 1, characterized in that: The circular protruding portion of the T-shaped hollow cylinder (131) is embedded in the cavity of the hollow cylinder (52), and the contact surfaces are both smooth planes.

3. The PE pipe oxide layer scraper according to claim 1, characterized in that: The telescopic support structure is symmetrical with respect to the threaded rod (6).

4. The PE pipe oxide layer scraper according to claim 1, characterized in that: The rotating shaft seats (9) of the movable four-corner hinge seats (13) and the fixed four-corner hinge seats (7) are respectively hingedly connected to the support rod one (8); the T-shaped slideway of the support rod two (10) is matched and connected with the I-shaped rotating shaft slider (11); the rotating shaft slider (11) is hingedly connected to the support rod one (8) through the rotating shaft seat (9).

5. A method for operating the PE pipe oxide layer scraper as claimed in claim 1, characterized in that: The following steps are involved: S1, the handle (1) is rotated to drive the rotating rod (3), the rotating rod (3) drives the telescopic transmission rod 1 (4) to rotate through the J-shaped hook structure (32), the telescopic transmission rod 1 (4) drives the telescopic transmission rod 2 (5) to rotate, and the telescopic transmission rod 2 (5) moves axially along the threaded rod (6) while rotating, thereby driving the telescopic support structure to extend and retract; S2. When the second support rod (10) of the telescopic support structure is in close contact with the inner wall of the PE pipe, the rotating rod (3) is separated from the first telescopic transmission rod (4); S3. The position of the scraper (12) is adjusted, and the handle (1) is rotated to drive the rotating rod (3), so that the outer wall of the PE pipe is scraped by the scraper (12), and the rotating rod (3) moves along the axial direction of the PE pipe while rotating, thereby scraping all the PE oxide layers within a specified distance from the end of the PE pipe.

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