PE pipe convenient to splice

Abstract

The utility model discloses a PE pipe convenient to splice, and belongs to the technical field of PE pipe splicing. The device comprises a left connecting pipe and a right connecting pipe, the left side of the left connecting pipe is connected with a first fixing ring, the right side of the left connecting pipe is slidably connected with a moving ring, the right side of the moving ring is connected with an external thread ring sleeved on the left connecting pipe, the upper side and the lower side of the first fixing ring are respectively provided with a left-right through round hole, and a cross rod is slidably connected in each round hole. The internal thread ring continuously rotates to drive the external thread ring to continuously move rightwards to be completely meshed with the external thread ring, so that the right side of the left connecting pipe is in contact with the left side of the right connecting pipe, the sealing sleeve enters the left connecting pipe, and a butt joint is connected and fixed through the external thread ring and the internal thread ring; in this way, the PE pipe can be conveniently fixed during welding, the connecting position is prevented from loosening, the sealing effect is improved, and connector breakage is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of PE pipe splicing, in particular to a PE pipe which is easy to splice. Background Art

[0002] PE pipes are widely used in a wide range of applications, with water pipes and gas pipes being the two largest applications. In the prior art, PE pipes are often connected by hot-melt-melting the ends with a hot-melt gun and then directly gluing them together.

[0003] A search of Chinese patent application No. 201921014861.X discloses a PE pipe that is easy to splice, including a pipe body, with a No. 1 pipe head and a No. 2 pipe head at each end of the pipe body, a rigid connecting pipe is provided on the inner side of the No. 1 pipe head, and a plurality of No. 1 embedded rings are provided on the outer side of the rigid connecting pipe, and the No. 1 embedded rings are embedded in the No. 1 embedded grooves. A No. 1 end embedded ring is welded on one end of the rigid connecting pipe close to the inner side of the No. 1 pipe head, and the No. 1 end embedded ring is embedded in the No. 1 pipe head. A threaded surface is provided on the inner side of the rigid connecting pipe, a rigid inner pipe is provided on the inner side of the No. 1 pipe head, a plurality of No. 2 embedded rings are provided on the outer side of the rigid inner pipe, the No. 2 embedded rings are embedded in the No. 2 embedded grooves, a No. 2 end head embedded ring is welded on one end of the rigid inner pipe close to the inner side of the No. 2 pipe head, the No. 2 end head embedded ring is embedded in the No. 2 pipe head, and an outer rough surface is provided on the outer side of the No. 1 pipe head. Beneficial effects: the utility model has a novel structure and is easy to use. It is a new and practical PE pipe that is easy to splice.

[0004] Although the above patented structure is novel and easy to use, it is inconvenient to fix the PE pipe during welding in actual use, and the connection is prone to loosening, resulting in poor sealing effect and easy breakage, which brings inconvenience to users.

[0005] Therefore, it is necessary to modify it to facilitate the fixation of the PE pipe during welding, avoid loosening of the connection, improve the sealing effect, and prevent the interface from breaking. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a PE pipe that is easy to splice, which has the advantages of being convenient for fixing the PE pipe during welding, avoiding loosening of the connection, improving the sealing effect, preventing the interface from breaking, and being convenient for users to use. It solves the problem that it is inconvenient to fix the PE pipe during welding, the connection is easy to loosen, resulting in poor sealing effect, easy breakage, and causing inconvenience to users.

[0007] The utility model provides the following technical solution: a PE pipe that is easy to splice, comprising a left connecting pipe and a right connecting pipe, the left side of the surface of the left connecting pipe is fixedly connected with a first fixing ring, the right side of the surface of the left connecting pipe is slidably connected with a moving ring, the right side of the moving ring is fixedly connected with an externally threaded ring sleeved on the surface of the left connecting pipe, the upper and lower sides of the surface of the first fixing ring are provided with left and right through-holes, and the inside of the circular hole is slidably connected with a cross bar, the right end of the cross bar is fixedly connected to the left side of the moving ring, the left end of the cross bar is fixedly connected with a baffle, the right side of the surface of the cross bar is sleeved with a compression spring, the right end of the compression spring is fixedly connected to the left side of the moving ring, the left end of the compression spring is fixedly connected to the right side of the first fixing ring, the surface of the right connecting pipe is rotatably connected with a second fixing ring, and the left side of the second fixing ring is fixedly connected with an internally threaded ring sleeved on the surface of the right connecting pipe.

[0008] The beneficial effects of the utility model are as follows:

[0009] 1. The utility model heats the inner wall of the right side of the left connecting pipe by using a heat fuser, and then aligns the left connecting pipe with the right connecting pipe. The moving ring moves to the right under the pressure of the compression spring, driving the external threaded ring to move to the right, so that the external threaded ring moves to the right and engages with the internal threaded ring. Then the internal threaded ring is rotated. The external threaded ring is fixed by the cross bar and will not rotate when the internal threaded ring rotates. The continuous rotation of the internal threaded ring drives the external threaded ring to continue to move to the right to fully engage with it, so that the right side of the left connecting pipe contacts the left side of the right connecting pipe, and the sealing sleeve enters the interior of the left connecting pipe, and the interface is connected and fixed by the external threaded ring and the internal threaded ring. This achieves the convenience of fixing the PE pipe during welding, avoids loosening of the connection, improves the sealing effect, and prevents the interface from breaking.

[0010] 2. The utility model sets the corresponding settings of the metal pin rod and the magnetic strip. When the external thread ring and the internal thread ring are fully engaged, the metal pin rod can be pushed to the right to make the surface of the metal pin rod contact the surface of the magnetic strip. The metal pin rod is fixed by the magnetic force generated by the magnetic strip and the internal thread ring is positioned, thereby avoiding the situation where the internal thread ring loosens and affects the connection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram of the utility model.

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model.

[0013] Figure 3 It is a left-side structural schematic diagram of the utility model.

[0014] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of A in the middle. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0016] like Figures 1 to 4 As shown, the PE pipe of this embodiment includes a left connecting pipe 1 and a right connecting pipe 2. The left side of the surface of the left connecting pipe 1 is fixedly connected with a first fixing ring 3, and the right side of the surface of the left connecting pipe 1 is slidably connected with a moving ring 4. The right side of the moving ring 4 is fixedly connected with an external threaded ring 5 sleeved on the surface of the left connecting pipe 1. The upper and lower sides of the surface of the first fixing ring 3 are provided with left and right through circular holes, and the inside of the circular hole is slidably connected with a cross bar 6. The right end of the cross bar 6 is fixedly connected to the left side of the moving ring 4, and the left end of the cross bar 6 is fixedly connected to a baffle 7. The right side of the surface of the cross bar 6 is sleeved with a compression spring 8, the right end of the compression spring 8 is fixedly connected to the left side of the moving ring 4, and the left end of the compression spring 8 is fixedly connected to the right side of the first fixing ring 3. The surface of the right connecting pipe 2 is rotatably connected with a second fixing ring 9, and the left side of the second fixing ring 9 is fixedly connected with an internal threaded ring 10 sleeved on the surface of the right connecting pipe 2.

[0017] refer to Figure 1 Square grooves 11 are provided around the surface of the movable ring 4, and a metal pin rod 12 is hinged inside the square groove 11. Long grooves 13 are provided around the surface of the external threaded ring 5, and a magnetic strip 14 corresponding to the metal pin rod 12 is fixedly connected to the bottom of the inner wall of the groove.

[0018] In this embodiment, by arranging the corresponding settings of the metal pin rod 12 and the magnetic strip 14, when the external thread ring 5 and the internal thread ring 10 are fully engaged, the metal pin rod 12 can be pushed to the right so that the surface of the metal pin rod 12 contacts the surface of the magnetic strip 14. The magnetic force generated by the magnetic strip 14 fixes the metal pin rod 12 and positions the internal thread ring 10, thereby avoiding the situation where the internal thread ring 10 becomes loose and affects the connection effect.

[0019] refer to Figure 2 A sealing sleeve 15 is fixedly connected to the left side of the inner wall of the right connecting pipe 2. The left side of the sealing sleeve 15 extends to the left side of the right connecting pipe 2. The outer diameter of the sealing sleeve 15 is the same as the inner diameter of the left connecting pipe 1. A sealing ring 16 is fixedly connected to the right side of the inner wall of the left connecting pipe 1. The left side of the sealing sleeve 15 and the right side of the sealing ring 16 are both provided with slopes 17 corresponding to each other. The distance from the left side of the sealing sleeve 15 to the left side of the right connecting pipe 2 is the same as the distance from the right side of the sealing ring 16 to the right side of the left connecting pipe 1.

[0020] In this embodiment, by providing corresponding settings of the sealing sleeve 15 and the sealing ring 16, when the right side of the left connecting pipe 1 contacts the left side of the right connecting pipe 2, the sealing sleeve 15 enters the interior of the left connecting pipe 1, and the slope 17 at its left end fits tightly with the slope 17 on the right side of the sealing ring 16, further improving the sealing effect of the connection and avoiding water leakage.

[0021] refer to Figure 2 A number of circular grooves 18 are provided inside the left connecting pipe 1 and the right connecting pipe 2, and glass fiber reinforcement wires 19 are fixedly connected inside the circular grooves 18. The inner and outer surfaces of the left connecting pipe 1 and the right connecting pipe 2 are provided with a smooth coating.

[0022] This embodiment improves the overall strength and toughness of the left connecting tube 1 and the right connecting tube 2 by arranging glass fiber reinforcement wires 19 inside the left connecting tube 1 and the right connecting tube 2, thereby avoiding deformation and bending of the left connecting tube 1 and the right connecting tube 2 during connection and extrusion, which affects normal use.

[0023] refer to Figure 4 The inner surface of the movable ring 4 is fixedly connected with evenly distributed sliders 20 all around, and the right side of the left connecting pipe 1 surface is provided with evenly distributed chute 21 all around, and the surface of the slider 20 is slidably connected to the inner wall of the chute 21.

[0024] This embodiment achieves a limiting and reinforcing effect on the movable ring 4 by arranging the corresponding settings of the slider 20 and the slide groove 21. When the movable ring 4 moves to the right under the pressure of the compression spring 8, the slider 20 slides inside the slide groove 21, so that the movable ring 4 can only move left and right on the surface of the left connecting pipe 1, avoiding the movable ring 4 from rotating during movement, resulting in the external threaded ring 5 being unable to engage normally with the internal threaded ring 10.

[0025] refer to Figure 1 The outer diameter of the external threaded ring 5 is the same as the inner diameter of the internal threaded ring 10 , the width of the external threaded ring 5 is the same as the width of the internal threaded ring 10 , and the inner diameter of the external threaded ring 5 is the same as the outer diameter of the right connecting pipe 2 .

[0026] In this embodiment, by setting the outer diameter of the external threaded ring 5 and the inner diameter of the internal threaded ring 10 to be the same, the external threaded ring 5 can be more conveniently engaged with the interior of the internal threaded ring 10. By setting the external threaded ring 5 and the internal threaded ring 10 to have the same width, it can be ensured that the external threaded ring 5 can completely enter the interior of the internal threaded ring 10 to avoid the formation of gaps. By setting the inner diameter of the external threaded ring 5 and the outer diameter of the right connecting pipe 2 to be the same, the external threaded ring 5 can be conveniently sleeved on the surface of the right connecting pipe 2 when engaging with the internal threaded ring 10, further improving the connection effect.

[0027] The utility model heats the inner wall of the right side of the left connecting pipe 1 by using a heat fuser, and then aligns the left connecting pipe 1 with the right connecting pipe 2. The moving ring 4 is moved to the right by the pressure of the compression spring 8, driving the external threaded ring 5 to move to the right, so that the external threaded ring 5 moves to the right and engages with the internal threaded ring 10, and then the internal threaded ring 10 is rotated. The external threaded ring 5 is fixed by the cross bar 6 and will not rotate when the internal threaded ring 10 rotates. The internal threaded ring 10 continues to rotate and drives the external threaded ring 5 to continue to move to the right to fully engage with it, so that the right side of the left connecting pipe 1 contacts the left side of the right connecting pipe 2, and the sealing sleeve 15 enters the interior of the left connecting pipe 1, and the interface is connected and fixed by the external threaded ring 5 and the internal threaded ring 10, so as to facilitate the fixation of the PE pipe during welding, avoid loosening of the connection, improve the sealing effect, and prevent the interface from breaking.

Claims

1. A PE pipe that is easy to splice, comprising a left connecting pipe (1) and a right connecting pipe (2), characterized in that: The left side of the surface of the left connecting tube (1) is fixedly connected with a first fixing ring (3), the right side of the surface of the left connecting tube (1) is slidably connected with a moving ring (4), the right side of the moving ring (4) is fixedly connected with an external threaded ring (5) sleeved on the surface of the left connecting tube (1), the upper and lower sides of the surface of the first fixing ring (3) are provided with left and right through circular holes, and the inside of the circular hole is slidably connected with a cross bar (6), the right end of the cross bar (6) is fixedly connected to the left side of the moving ring (4), the left end of the cross bar (6) is fixedly connected with a baffle (7), the right side of the surface of the cross bar (6) is sleeved with a compression spring (8), the right end of the compression spring (8) is fixedly connected to the left side of the moving ring (4), and the left end of the compression spring (8) is fixedly connected to the right side of the first fixing ring (3), the surface of the right connecting tube (2) is rotatably connected with a second fixing ring (9), and the left side of the second fixing ring (9) is fixedly connected with an internal threaded ring (10) sleeved on the surface of the right connecting tube (2).

2. The PE pipe that is easy to splice according to claim 1, characterized in that: The movable ring (4) is provided with square grooves (11) on all sides of its surface, a metal pin (12) is hingedly connected inside the square groove (11), and the external threaded ring (5) is provided with long grooves (13) on all sides of its surface, and a magnetic strip (14) corresponding to the metal pin (12) is fixedly connected to the bottom of the inner wall of the groove.

3. The PE pipe that is easy to splice according to claim 2, characterized in that: A sealing sleeve (15) is fixedly connected to the left side of the inner wall of the right connecting pipe (2), and the left side of the sealing sleeve (15) extends to the left side of the right connecting pipe (2). The outer diameter of the sealing sleeve (15) is the same as the inner diameter of the left connecting pipe (1). A sealing ring (16) is fixedly connected to the right side of the inner wall of the left connecting pipe (1). The left side of the sealing sleeve (15) and the right side of the sealing ring (16) are both provided with slopes (17) arranged corresponding to each other. The distance from the left side of the sealing sleeve (15) to the left side of the right connecting pipe (2) is the same as the distance from the right side of the sealing ring (16) to the right side of the left connecting pipe (1).

4. The PE pipe that is easy to splice according to claim 3, characterized in that: A number of circular grooves (18) are provided inside the left connecting pipe (1) and the right connecting pipe (2), and glass fiber reinforcement wires (19) are fixedly connected inside the circular grooves (18). The inner and outer surfaces of the left connecting pipe (1) and the right connecting pipe (2) are provided with a smooth coating.

5. The PE pipe that is easy to splice according to claim 4, characterized in that: Evenly distributed sliders (20) are fixedly connected to the inner surface of the movable ring (4) on all sides, and evenly distributed sliding grooves (21) are opened on the right side of the surface of the left connecting pipe (1) on all sides, and the surface of the slider (20) is slidably connected to the inner wall of the sliding groove (21).

6. A PE pipe that is easy to splice according to claim 1, 2 or 5, characterized in that: The outer diameter of the external threaded ring (5) is the same as the inner diameter of the internal threaded ring (10), the width of the external threaded ring (5) is the same as the width of the internal threaded ring (10), and the inner diameter of the external threaded ring (5) is the same as the outer diameter of the right connecting pipe (2).

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