Three-way pipeline convenient to assemble and disassemble

Abstract

The utility model is suitable for the field of three-way pipelines, and provides a three-way pipeline convenient to assemble and disassemble, which comprises a three-way piece, a fixed connecting part with a conical surface is arranged at a pipe orifice of the three-way piece; the fixed connecting part is in threaded connection with a movable connecting part with a sleeve-shaped structure; an obstacle avoidance groove is formed in the fixed connecting part, so that the fixed connecting part is extruded by the movable connecting part, and the cross section is shrunk; and the movable connecting part is provided with a convex block which can be inserted into the obstacle avoidance groove to expand the section of the fixed connecting part, so that the section of the fixed connecting part can be expanded in the pipeline mounting stage through the push block arranged on the movable connecting part, and the pipeline can be conveniently inserted without completely disassembling the movable connecting part.

Description

Technical Field

[0001] The utility model relates to the field of three-way pipes, in particular to a three-way pipe which is easy to assemble and disassemble. Background Art

[0002] Currently, pipes are all connected by hot-melt connection (using a hot melter to heat-melt the tee joint and the pipe joint to the appropriate diameter and then assemble them together). However, the current joint hot-melt process is relatively cumbersome and cannot meet the needs of special occasions. Nowadays, there are also tee joints with quick-release joints. This quick-release structure includes two mating parts connected by a threaded structure. The threaded connection surface is a conical structure. As the thread transmission progresses, the two mating parts move relative to each other and cooperate with the conical surface structure to drive the inner diameter of one of the mating parts to decrease, thereby achieving connection with the pipe.

[0003] However, the mating component whose inner diameter is reduced is located before the pipe is mated (the pipe end is inserted into the mating component), and the other mating component needs to be removed, which is cumbersome.

[0004] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Utility Model Content

[0005] In response to the above-mentioned defects, the purpose of the present invention is to provide a three-way pipe that is easy to assemble and disassemble. The push block provided on the movable connection part can expand the cross-section of the fixed connection part during the pipe installation stage, and the pipe can be conveniently inserted without completely removing the movable connection part.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a three-way pipe that is easy to assemble and disassemble, including a three-way piece; a fixed connection part with a conical surface is provided at the pipe mouth of the three-way piece; a movable connection part with a sleeve-shaped structure is screwed to the fixed connection part; an obstacle avoidance groove is provided on the fixed connection part, so that the fixed connection part is squeezed by the movable connection part and the cross-section is contracted; the movable connection part is provided with a protrusion that can be inserted into the obstacle avoidance groove to expand the cross-section of the fixed connection part.

[0007] According to the three-way pipe that is easy to assemble and disassemble of the utility model, a U-shaped sealing gasket is installed in the movable connection part. When installed, its opening corresponds to the position of the protrusion, and the size of the opening corresponds to the width of the protrusion.

[0008] According to the three-way pipe that is easy to assemble and disassemble of the utility model, a driving block for driving the U-shaped sealing gasket to move the axis is installed at the end of the movable connection part.

[0009] According to the three-way pipe that is easy to assemble and disassemble of the utility model, the driving block is an annular structure and is screwed to the end of the movable connection part.

[0010] According to the three-way pipe that is easy to assemble and disassemble of the utility model, the U-shaped sealing gasket is a rubber sealing gasket or a metal sealing gasket.

[0011] According to the three-way pipe that is easy to assemble and disassemble of the utility model, the protrusion is a conical convex structure with different widths at the end.

[0012] The utility model provides a three-way pipe that is easy to assemble and disassemble, including a three-way piece, which has three pipe openings with predetermined angles between adjacent ones; a fixed connection part with a conical surface is provided at the pipe opening of the three-way piece; the fixed connection part is screwed with a movable connection part with a sleeve-shaped structure; the inner wall of the movable connection part also has a conical surface (the taper of the conical surface is consistent with the conical surface of the fixed connection part), and a threaded structure is provided on both conical surfaces to form a mating surface. An obstacle avoidance groove is provided on the fixed connection part, so that the cross section of the fixed connection part is squeezed by the movable connection part; during the screw connection process, the movable connection part moves toward the fixed connection part, and during the movement, the movable connection part cooperates with the conical surface structure to squeeze the fixed connection part. During the squeezing process, the diameter of the notch of the obstacle avoidance groove is reduced, and the cross section of the fixed connection part is reduced. The utility model can achieve the cross-sectional expansion of the fixed connection part during the pipeline installation stage by means of a push block provided on the movable connection part, and the pipeline can be conveniently inserted without completely removing the movable connection part. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a structural diagram of one of the nozzle positions of the utility model;

[0015] Figure 3 This is a schematic diagram from another angle of the present invention;

[0016] Figure 4 It is a schematic diagram of the structure of the bump;

[0017] Figure 5 It is a schematic diagram of the structure of the bump and the U-shaped sealing gasket;

[0018] In the figure, 1- tee piece, 2- fixed connection part, 3- movable connection part, 4- obstacle avoidance groove, 5- protrusion, 6- U-shaped sealing gasket, 7- driving block. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] See also Figure 1and Figure 2 The utility model provides a three-way pipe that is easy to assemble and disassemble. The three-way pipe that is easy to assemble and disassemble includes a three-way piece 1, which has three pipe openings, and there is a predetermined angle between adjacent ones (in this embodiment, the three pipe openings are arranged perpendicular to each other, that is, the angle between adjacent ones is 90°); a fixed connection part 2 with a conical surface is provided at the pipe opening of the three-way piece 1; the fixed connection part 2 is screwed with a movable connection part 3 with a sleeve-shaped structure; the inner wall of the movable connection part 3 has a conical surface (the taper of the conical surface is consistent with the conical surface of the fixed connection part 2), and a threaded structure is provided on both conical surfaces to form a mating surface.

[0021] See also Figure 3 The fixed connection part 2 is provided with an obstacle avoidance groove 4, so that the fixed connection part 2 is squeezed by the movable connection part 3 and the cross-section shrinks; during the screw connection process, the movable connection part 3 moves toward the fixed connection part 2, and in the process of movement, the movable connection part 3 cooperates with the conical surface structure to realize the squeezing of the fixed connection part 2. During the squeezing process, the diameter of the notch of the obstacle avoidance groove 4 is reduced, and the cross-section of the fixed connection part 2 is reduced.

[0022] The movable connection part 3 is provided with a protrusion 5 ( Figure 4 During the extrusion process, the protrusion 5 is not inserted into the obstacle avoidance groove 4 to avoid affecting the contraction of the fixed connection part 2.

[0023] The working process of the protrusion 5 is that during the pipe insertion stage, after the movable connection part 3 is unscrewed (the screw connection work is cancelled), the protrusion 5 is inserted into the obstacle avoidance groove 4 to support the fixed connection part 2, and then the pipe is inserted into the fixed connection part 2. In this way, the movable connection part 3 does not need to be completely removed, which optimizes the assembly efficiency.

[0024] Preferably, in order to ensure that the projection 5 can expand the obstacle avoidance groove 4 when it moves, the projection 5 is a conical convex structure with different widths at the ends. This structure can better expand the obstacle avoidance groove 4 as the projection 5 moves.

[0025] See also Figure 2 and Figure 5 A U-shaped sealing gasket 6 (a rubber or metal sealing gasket) is installed in the movable connection part 3. When installed, its opening corresponds to the position of the protrusion 5, and the size of the opening corresponds to the width of the protrusion 5. When the protrusion 5 is in a non-extruded state (the pipe is already connected), it will cooperate with the U-shaped sealing gasket 6 to achieve a sealing effect.

[0026] A drive block 7 is mounted at the end of the movable connection portion 3 to drive the U-shaped seal 6 to move along its axis. The drive block 7 is an annular structure and is screwed to the end of the movable connection portion 3. Rotating the drive block 7 causes its axis to move, thereby pushing the U-shaped seal 6.

[0027] In summary, the present invention provides a three-way pipe that is easy to assemble and disassemble, including a three-way piece, which has three pipe openings with predetermined angles between adjacent ones; a fixed connection part with a conical surface is provided at the pipe opening of the three-way piece; the fixed connection part is screwed with a movable connection part with a sleeve-shaped structure; the inner wall of the movable connection part also has a conical surface (the taper of the conical surface is consistent with the conical surface of the fixed connection part), and a threaded structure is provided on both conical surfaces to form a mating surface. An obstacle avoidance groove is provided on the fixed connection part, so that the cross section of the fixed connection part is contracted by the compression of the movable connection part; during the screw connection process, the movable connection part moves toward the fixed connection part, and during the movement, the movable connection part cooperates with the conical surface structure to realize the compression of the fixed connection part. During the compression process, the diameter of the notch of the obstacle avoidance groove is reduced, and the cross section of the fixed connection part is reduced. The present invention can realize the cross section expansion of the fixed connection part during the pipeline installation stage by means of a push block provided on the movable connection part, and the pipeline can be conveniently inserted without completely removing the movable connection part.

[0028] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A three-way pipe that is easy to assemble and disassemble, characterized in that: It comprises a tee; a fixed connection part with a conical surface is provided at the pipe mouth of the tee; a movable connection part with a sleeve-shaped structure is screwed to the fixed connection part; The fixed connection part is provided with an obstacle avoidance groove so that the fixed connection part is squeezed by the movable connection part and its cross section shrinks; The movable connection part is provided with a protrusion which can be inserted into the obstacle avoidance groove to expand the cross section of the fixed connection part.

2. The three-way pipe that is easy to assemble and disassemble according to claim 1 is characterized in that: A U-shaped sealing gasket is installed in the movable connection part. When installed, the opening of the U-shaped sealing gasket corresponds to the position of the protrusion, and the size of the opening corresponds to the width of the protrusion.

3. The three-way pipe that is easy to assemble and disassemble according to claim 1 or 2, characterized in that: A driving block for driving the U-shaped sealing gasket to move along the axis is installed at the end of the movable connection part.

4. The three-way pipe that is easy to assemble and disassemble according to claim 3 is characterized in that: The driving block is an annular structure and is screwed to the end of the movable connection part.

5. The three-way pipe that is easy to assemble and disassemble according to claim 2 or 4, characterized in that: The U-shaped sealing gasket is a rubber sealing gasket or a metal sealing gasket.

6. The three-way pipe that is easy to assemble and disassemble according to claim 1 is characterized in that: The convex block is a conical convex structure with different widths at the end.

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