PE pipe electric fusion welding grid line drawing device

Abstract

The utility model relates to a PE pipe electric fusion welding grid line drawing device which comprises two symmetrically-arranged fixing mechanisms and line drawing mechanisms located on the two fixing mechanisms, and the two fixing mechanisms are connected through at least two fixing rods. The line drawing mechanism comprises a radial line drawing assembly and an axial line drawing assembly, and the radial line drawing assembly and the axial line drawing assembly are both slidably connected with the fixing rod through the mounting base. The two symmetrically-arranged fixing mechanisms are used for fixing the two ends of the connector of the PE pipe correspondingly, then under the effect of sliding connection with the fixing rod, axial line drawing is achieved through the axial line drawing assembly, radial line drawing is achieved through the radial line drawing assembly, grid lines are formed, the lines are standard when the grid lines are drawn, and the drawing efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of line drawing equipment, in particular to a PE pipe electric fusion welding grid line drawing device. Background Art

[0002] The principle of PE pipe electrofusion welding is to use an electric fusion welder to heat a resistance wire embedded in the inner wall of the fitting. This heating energy melts the interface between the fitting and the pipe. After the gap at both ends of the fitting is sealed, the molten material in the interface melt zone, under the action of high temperature and pressure, causes its molecular chains to diffuse into each other. When the depth of interdiffusion at the interface reaches the required size for chain entanglement, the interface will achieve the necessary weld strength after natural cooling, forming a reliable pipe connection.

[0003] Before electrofusion welding of PE pipes, the joints must be marked. Rapid cutting is then performed at the marked locations to remove the oxide layer on the PE pipe surface, thereby improving weld quality. However, marking the joints of PE pipes is often done manually, resulting in irregular grid lines and low drawing efficiency. Utility Model Content

[0004] The purpose of the utility model is to design a PE pipe electric fusion welding grid line drawing device, which can achieve standardized lines when drawing grid lines and high drawing efficiency, so as to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a PE pipe electric fusion welding grid line drawing device is provided, comprising two symmetrically arranged fixing mechanisms and a drawing mechanism located at the two fixing mechanisms, and the two fixing mechanisms are connected by at least two fixing rods; the drawing mechanism comprises a radial drawing assembly and an axial drawing assembly, and the radial drawing assembly and the axial drawing assembly are both slidably connected to the fixing rod through a mounting seat.

[0006] Furthermore, the fixing mechanism includes an L-shaped limit rod, a first sliding groove is opened on one side of the L-shaped limit rod, a second sliding groove is opened on the other side of the L-shaped limit rod, a first limiting rod is slidably connected to the first sliding groove, a third sliding groove is opened on the side of the first limiting rod away from the first sliding groove, and the third sliding groove and the second sliding groove are both slidably connected through the second limiting rod.

[0007] Furthermore, one end of the first limiting rod is provided with a first external thread, and one end of the first limiting rod passes through the first sliding groove and is threadedly connected to the first nut through the first external thread; the second limiting rod is a bolt, and one end of the second limiting rod passes through the second sliding groove and the third sliding groove and is threadedly connected to the second nut.

[0008] Furthermore, the L-shaped limiting rod and the first limiting rod are both installed with nut seats, and both ends of the fixing rod are provided with second external threads, and the two fixing mechanisms and the fixing rod are threadedly connected to the second external threads through the nut seats.

[0009] Furthermore, the axial line drawing assembly includes an axial fixing ring, and a plurality of first brush fixing grooves are evenly formed on the axial fixing ring along the circumference of the axis of the axial fixing ring, and the first brush fixing grooves are for placing brushes.

[0010] Furthermore, the radial line drawing assembly includes a radial fixing ring, which is hollow. The radial fixing ring is provided with at least two fourth sliding grooves, and the line drawing moving parts are installed in the fourth sliding grooves.

[0011] Furthermore, the radial line drawing assembly and the axial line drawing assembly are connected by at least two connecting rods.

[0012] Furthermore, the line drawing movable member includes a first fixed seat, a spring and a second fixed seat, the first fixed seat is installed in the radial fixed ring, the second fixed seat is provided with a second brush fixing groove, the second brush fixing groove is for placing the brush, and the second fixed seat is slidably connected to the fourth sliding groove; one end of the spring is connected to the first fixed seat, and the other end of the spring is connected to the second fixed seat.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The utility model provides a line drawing mechanism, and two symmetrically arranged fixing mechanisms respectively fix the two ends of the PE pipe interface. Then, under the action of the sliding connection with the fixing rod, the axial line drawing component is used to draw the axial line, and the radial line drawing component is used to draw the radial line to form a grid line, so that the lines are standardized when drawing the grid line, and the drawing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the line drawing mechanism of the present utility model;

[0018] Figure 3 This is a cross-sectional view of the line drawing mechanism of the present utility model;

[0019] The names of the components in the figure are as follows:

[0020] 1. PE tube; 2. Fixing mechanism; 3. Fixing rod; 4. Radial drawing assembly; 5. Axial drawing assembly; 6. Mounting seat; 7. L-shaped limiting rod; 8. Second slide; 9. First limiting rod; 10. Third slide; 11. Second limiting rod; 12. First nut; 13. Second nut; 14. Nut seat; 15. Axial fixing ring; 16. First brush fixing groove; 17. Radial fixing ring; 18. Fourth slide; 19. Drawing moving part; 20. Connecting rod; 21. First fixing seat; 22. Spring; 23. Second fixing seat. DETAILED DESCRIPTION

[0021] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0022] Example: Reference Figure 1-3A PE pipe electric fusion welding grid line drawing device includes two symmetrically arranged fixing mechanisms 2 and a drawing mechanism located at the two fixing mechanisms 2. The fixing mechanism 2 includes an L-shaped limiting rod 7, one side of the L-shaped limiting rod 7 is provided with a first sliding groove, and the other side of the L-shaped limiting rod 7 is provided with a second sliding groove 8. A first limiting rod 9 is slidably connected to the first sliding groove, and one end of the first limiting rod 9 is provided with a first external thread. One end of the first limiting rod 9 passes through the first sliding groove and is threadedly connected to the first nut 12 through the first external thread. The first limiting rod 9 can slide a certain distance in the first sliding groove, and then the first limiting rod 9 is fixed by the threaded connection between the first external thread and the first nut 12. A third slot 10 is defined on the side of the first limiting rod 9 away from the first slot. The third slot 10 and the second slot 8 are slidably connected via a second limiting rod 11. The second limiting rod 11 is a bolt, one end of which passes through the second and third slots 8, 10, and is threadedly connected to a second nut 13. The second limiting rod 11 can slide a certain distance within the second and third slots 8, 10, and is then secured by the threaded connection between the second limiting rod 11 and the second nut 13. The L-shaped limiting rod 7, the first limiting rod 9, and the second limiting rod 11 form a square fixing frame that secures the interface of the PE tube 1 and can accommodate PE tubes 1 of varying diameters. The two fixing mechanisms 2 are connected by three fixing rods 3, with two symmetrically arranged fixing mechanisms 2 securing the two ends of the interface of the PE tube 1, respectively. The L-shaped limiting rod 7 and the first limiting rod 9 are both installed with a nut seat 14, and a second external thread is provided at both ends of the fixing rod 3. The two fixing mechanisms 2 and the fixing rod 3 are threadedly connected to the second external thread through the nut seat 14. The fixing rod 3 and the fixing mechanism 2 are detachably connected through the threaded connection between the second external thread and the nut seat 14 for easy carrying.

[0023] The marking mechanism includes a radial marking assembly 4 and an axial marking assembly 5, both of which are slidably connected to the fixed rod 3 via a mounting seat 6. The axial marking assembly 5 includes an axial fixing ring 15, on which a plurality of first brush fixing grooves 16 are evenly arranged along the circumference of the axis of the axial fixing ring 15. The first brush fixing grooves 16 are for placing brushes. The number of brushes placed in the first brush fixing grooves 16 can be adjusted to adjust the distance between adjacent axial lines. When drawing an axial line, the brushes in the first brush fixing grooves 16 directly contact the surface of the PE pipe 1. The axial line can be drawn by simply pulling the axial fixing ring 15 from the fixing mechanism 2 at one end to the fixing mechanism 2 at the other end under the sliding action of the fixed rod 3. The radial line drawing component 4 and the axial line drawing component 5 are connected by at least two connecting rods 20. The connecting rods 20 can be telescopic rods. The axial line drawing component 5 can be positioned on the first radial line, and then the distance between the radial line drawing component 4 and the axial line drawing component 5 is adjusted by the connecting rod 20 to determine the distance between adjacent radial lines. Then, the second radial line is drawn, and then the axial line drawing component 5 is positioned on the second radial line. The radial line drawing component 4 draws the third radial line, and so on. The radial lines are drawn and the axial lines are combined to form grid lines, so that the lines are standardized when drawing the grid lines and the drawing efficiency is high. The radial line drawing assembly 4 includes a radial fixing ring 17, which is hollow and has at least two fourth slide grooves 18 formed on the radial fixing ring 17. A line drawing moving member 19 is installed in the fourth slide groove 18; the line drawing moving member 19 includes a first fixing seat 21, a spring 22 and a second fixing seat 23. The first fixing seat 21 is installed in the radial fixing ring 17, and a second brush fixing groove is formed on the second fixing seat 23 for placing the brush, and the second fixing seat 23 is slidably connected on the fourth slide groove 18; one end of the spring 22 is connected to the first fixing seat 21, and the other end of the spring 22 is connected to the second fixing seat 23; when drawing radial lines, the brush on the second brush fixing groove directly touches the surface of the PE pipe 1, and the drawing of the axial line can be completed by pulling the second fixing seat 23 and rotating along the radial fixing ring 17. At the same time, under the action of the elastic potential energy of the spring 22, the second fixing seat 23 can quickly return to its position after drawing.

[0024] The working principle of this embodiment is as follows: according to the diameter of the PE pipe 1, the appropriate radial marking assembly 4 and axial marking assembly 5 are selected, the fixing rod 3 passes through the mounting seat 6 and is connected to the axial fixing ring 15 and the radial fixing ring 17 respectively, and then the first limiting rod 9 can slide a certain distance in the first slide groove, and then the first limiting rod 9 is fixed by the threaded connection of the first external thread and the first nut 12; the second limiting rod 11 can slide a certain distance in the second slide groove 8 and the third slide groove 10, and then the second limiting rod 11 is fixed by the threaded connection of the second limiting rod 11 and the second nut 13. The L-shaped limiting rod 7, the first limiting rod 9 and the second limiting rod 11 form a square fixing frame to fix the interface of the PE pipe 1. Then, the axial lines are drawn. The brush on the first brush fixing groove 16 directly touches the surface of the PE tube 1. Under the sliding action of the fixing rod 3, the axial fixing ring 15 is pulled and moved from the fixing mechanism 2 at one end to the fixing mechanism 2 at the other end to complete the drawing of the axial lines; finally, the radial lines are drawn. The brush on the second brush fixing groove directly touches the surface of the PE tube 1, and the second fixing seat 23 is pulled and rotated along the radial fixing ring 17 to complete the drawing of one axial line. By analogy, the drawing of the entire axial line is completed, and the work is done in this way.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "upper," "lower," "left," "right," "front," "rear," and similar expressions used herein are for illustrative purposes only.

[0026] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A PE pipe electric fusion welding grid line drawing device, characterized by: The invention comprises two symmetrically arranged fixing mechanisms (2) and a marking mechanism located on the two fixing mechanisms (2), wherein the two fixing mechanisms (2) are connected via at least two fixing rods (3); the marking mechanism comprises a radial marking assembly (4) and an axial marking assembly (5), wherein both the radial marking assembly (4) and the axial marking assembly (5) are slidably connected to the fixing rods (3) via a mounting seat (6); The fixing mechanism (2) includes an L-shaped limiting rod (7), a first sliding groove is provided on one side of the L-shaped limiting rod (7), a second sliding groove (8) is provided on the other side of the L-shaped limiting rod (7), a first limiting rod (9) is slidably connected to the first sliding groove, a third sliding groove (10) is provided on the side of the first limiting rod (9) away from the first sliding groove, and the third sliding groove (10) and the second sliding groove (8) are both slidably connected via a second limiting rod (11); The axial line drawing assembly (5) comprises an axial fixing ring (15), and a plurality of first brush fixing grooves (16) are evenly provided on the axial fixing ring (15) along the circumference of the axis of the axial fixing ring (15), wherein the first brush fixing grooves (16) are for placing brushes; The radial line drawing assembly (4) comprises a radial fixing ring (17), the radial fixing ring (17) is hollow, at least two fourth sliding grooves (18) are provided on the radial fixing ring (17), and a line drawing moving part (19) is installed in the fourth sliding groove (18).

2. The PE pipe electric fusion welding grid line drawing device according to claim 1, characterized in that: One end of the first limiting rod (9) is provided with a first external thread, and one end of the first limiting rod (9) passes through the first sliding groove and is threadedly connected to the first nut (12) through the first external thread; the second limiting rod (11) is a bolt, and one end of the second limiting rod (11) passes through the second sliding groove (8) and the third sliding groove (10) and is threadedly connected to the second nut (13).

3. The PE pipe electric fusion welding grid line drawing device according to claim 1, characterized in that: The L-shaped limiting rod (7) and the first limiting rod (9) are both installed with a nut seat (14), and the two ends of the fixing rod (3) are provided with a second external thread, and the two fixing mechanisms (2) and the fixing rod (3) are threadedly connected to the second external thread through the nut seat (14).

4. The PE pipe electric fusion welding grid line drawing device according to claim 1, characterized in that: The radial line drawing assembly (4) and the axial line drawing assembly (5) are connected via at least two connecting rods (20).

5. The PE pipe electric fusion welding grid line drawing device according to claim 1, characterized in that: The line drawing moving member (19) comprises a first fixed seat (21), a spring (22) and a second fixed seat (23), wherein the first fixed seat (21) is installed in the radial fixed ring (17), the second fixed seat (23) is provided with a second brush fixing groove for placing a brush, and the second fixed seat (23) is slidably connected to the fourth sliding groove (18); one end of the spring (22) is connected to the first fixed seat (21), and the other end of the spring (22) is connected to the second fixed seat (23).

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