A quick disassembly and assembly structure for a pipeline

Abstract

The present invention discloses a quick disassembly and assembly structure for pipelines, which includes an inner pipe and an outer pipe that can be inserted into each other. An annular groove is provided at one end of the inner pipe inserted into the outer pipe. An opening ring is sleeved on the outer periphery of the inner pipe and is located in the annular groove. The opening ring can rotate around the inner pipe. A first ratchet is provided on the outer periphery of the inner pipe at the upper end of the annular groove. A second ratchet that can cooperate with the first ratchet is provided on the upper end surface of the opening ring. A first boss is further provided on the outer periphery of the opening ring. A step surface that can cooperate with the lower end of the first boss is provided on the inner periphery of the outer pipe. A second boss that can cooperate with the first boss is also provided on the inner periphery of the outer pipe. This structure uses an opening ring, and two pipe fittings can be quickly disassembled and assembled through two actions of pressing and rotating. After installation, the two pipe fittings can rotate relative to each other and will not come off.

Description

Technical Field

[0001] The present invention relates to a quick disassembly and assembly structure for pipelines, which is applicable to the connection of pipelines. Background Art

[0002] Currently, the connection between pipes generally adopts a threaded connection. Multiple components such as a snap ring, a sealing ring, an elastic snap ring, a pushing member, and a gland are used to achieve quick installation. However, this structure has problems such as complex structure and cumbersome installation. In addition, for the structure of an elastic snap ring with claw teeth, its manufacturing process requirements are high, and it is not suitable for larger pipe diameters. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a quick disassembly and assembly structure for pipelines.

[0004] The present invention is achieved through the following technical solutions:

[0005] A quick disassembly and assembly structure for pipelines includes an inner pipe and an outer pipe that can be inserted into each other. An annular groove is provided at one end of the inner pipe inserted into the outer pipe. An opening ring is sleeved on the outer periphery of the inner pipe and is located in the annular groove. The opening ring can rotate around the inner pipe. First ratchet teeth are provided on the outer periphery of the inner pipe above the annular groove, and second ratchet teeth that can cooperate with the first ratchet teeth are provided on the upper end surface of the opening ring. A first boss is further provided on the outer periphery of the opening ring, and a step surface that can cooperate with the lower end of the first boss is provided on the inner periphery of the outer pipe. A second boss that can cooperate with the first boss is also provided on the inner periphery of the outer pipe.

[0006] In an embodiment of the present invention, a rib is provided on the outer peripheral wall of the opening ring. The rib is located on one side beside the first boss above, and a block is provided on the other side beside the first boss above. The rib and the block can keep the second boss above the first boss.

[0007] In an embodiment of the present invention, at least one first guiding inclined surface is provided on both sides below the first boss, and at least one second guiding inclined surface is provided on both sides above the second boss.

[0008] In an embodiment of the present invention, first guiding inclined surfaces are provided on both sides below the first boss so that a first sharp angle facing downward is formed below the first boss, and second guiding inclined surfaces are provided on both sides above the second boss so that a second sharp angle facing upward is formed above the second boss.

[0009] In an embodiment of the present invention, a first convex ring and a second convex ring are provided on the outer periphery of the inner pipe and are distributed up and down. An annular groove is formed between the first convex ring and the second convex ring, and the first ratchet teeth are provided on the lower end surface of the first convex ring.

[0010] In the embodiment of the present invention, a first boss is annularly distributed on the outer periphery of the opening ring, and a gap is formed between two adjacent first bosses, and the second boss can move up and down on this gap.

[0011] In the embodiment of the present invention, second bosses that cooperate with the first bosses are evenly distributed on the inner peripheral wall of the outer tube.

[0012] In the embodiment of the present invention, the first ratchet tooth includes a first inclined surface and a second inclined surface extending downward from the lower end surface of the first convex ring, and the included angle formed by the first inclined surface and the second inclined surface is 60° - 90°. The second ratchet tooth includes a third inclined surface and a fourth inclined surface extending upward from the upper end surface of the opening ring, and the included angle formed by the third inclined surface and the fourth inclined surface is 60° - 90°.

[0013] In the embodiment of the present invention, vertical ribs located in the annular groove are arranged at intervals on the inner peripheral wall of the opening ring.

[0014] In the embodiment of the present invention, a number of first ratchet teeth are provided on the outer periphery, and the upper end of the opening ring is covered with second ratchet teeth.

[0015] The quick disassembly and assembly structure of a pipeline of the present invention has the following beneficial effects: 1. This structure has few parts, is simple in structure, convenient to operate, and has a wide application range; 2. It can withstand a large tensile force and can rotate freely after installation; 3. Alignment is not required during the installation process, it is easy to install, can withstand a large pipe pressure, is suitable for most pipe fittings connections, and is especially suitable for toilets. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for use in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic diagram of the cooperation of the present invention Figure 1 .

[0018] Figure 2 is a schematic diagram of the cooperation of the present invention Figure 2 .

[0019] Figure 3 is a schematic diagram of the cooperation of the present invention Figure 3 .

[0020] Figure 4 is a schematic diagram of the cooperation of the present invention Figure 4 .

[0021] Figure 5 is a schematic diagram of the cooperation of the present inventionFigure 5 .

[0022] Figure 6 is a schematic diagram of the cooperation of the present invention Figure 6 .

[0023] Figure 7 is a schematic diagram of the cooperation of the present invention Figure 7 .

[0024] Figure 8 is a schematic diagram of the inner tube in the present invention.

[0025] Figure 9 is a schematic diagram of the outer tube in the present invention.

[0026] Figure 10 is a schematic diagram of the opening ring in the present invention. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Referring to the accompanying drawings of the specification, a quick disassembly and assembly structure of a pipeline includes an inner tube 10 and an outer tube 20 that can be inserted into each other. An annular groove 11 is provided at one end of the inner tube inserted into the outer tube. An opening ring 30 is sleeved on the outer periphery of the inner tube and is located in the annular groove. The opening ring can rotate around the inner tube. A first ratchet 12 is provided on the outer periphery of the inner tube above the annular groove. A second ratchet 31 that can cooperate with the first ratchet is provided on the upper end surface of the opening ring. A first boss 32 is further provided on the outer periphery of the opening ring. A step surface 21 that can cooperate with the lower end of the first boss is provided on the inner periphery of the outer tube. This step surface is used to limit the movement stroke of the first boss. Specifically, it will be elaborated in detail below. A second boss 22 that can cooperate with the first boss is also provided on the inner periphery of the outer tube. In the installation process of the present invention, the second boss moves from below the first boss to above the first boss to realize the installation of the inner tube and the outer tube. In the present invention, in order to better show the second boss, a part of the outer wall of the outer tube drawn in the figure is omitted, but in actuality, it can be a normal pipe fitting.

[0029] More specifically, convex ribs 33 are provided on the outer peripheral wall of the split ring. The convex ribs are located on one side beside the first boss and a stop block 34 is provided on the other side beside the first boss. The convex ribs and the stop block can keep the second boss above the first boss. The function of the stop block is to prevent the second boss from rotating relative to the first boss. In cooperation with the convex ribs, the second boss is positioned above the first boss, thus realizing the installation of the outer tube and the inner tube. For specific reference, please refer to the attached drawings in the specification.

[0030] To enable the insertion and cooperation of the outer tube and the inner tube to be completed at different positions, at least one first guiding inclined surface 35 is provided on both sides below the first boss, and at least one second guiding inclined surface 23 is provided on both sides above the second boss. With the cooperation of these two guiding inclined surfaces, and at the same time, the split ring can rotate relative to the inner tube and the outer tube, so that the positions of the first boss and the second boss can be changed to complete the correction, facilitating the subsequent installation process.

[0031] In a preferred embodiment, first guiding inclined surfaces are provided on both sides below the first boss so that a first pointed angle 36 facing downward is formed below the first boss, and second guiding inclined surfaces are provided on both sides above the second boss so that a second pointed angle 24 facing upward is formed above the second boss. The guiding inclined surfaces in both directions are more convenient for correcting the positions of the first boss and the second boss.

[0032] In one embodiment, a first convex ring 13 and a second convex ring 14 are provided on the outer periphery of the inner and outer parts and are distributed vertically. An annular groove is formed between the first convex ring and the second convex ring, and the first ratchet teeth are provided on the lower end surface of the first convex ring.

[0033] During a use process, first bosses are annularly distributed on the outer periphery of the split ring, and a gap 37 is formed between two adjacent first bosses. The second boss can move up and down in this gap. Second bosses that cooperate with the first bosses are evenly distributed on the inner peripheral wall of the outer tube.

[0034] More specifically: The first ratchet tooth includes a first inclined surface 15 and a second inclined surface 16 extending downward from the lower end surface of the first convex ring. The included angle θ1 formed by the first inclined surface and the second inclined surface is 60° - 90°, and the included angle θ1 can be 60°, 65°, 68°, 72°, 78°, 80°, 84°, 90°. The second ratchet tooth includes a third inclined surface 38 and a fourth inclined surface 39 extending upward from the upper end surface of the opening ring. The included angle θ2 formed by the third inclined surface and the fourth inclined surface is 60° - 90°, and the included angle θ2 can be 60°, 65°, 68°, 72°, 78°, 80°, 84°, 90°. In an embodiment, the lower end surface of the first convex ring and the upper end surface of the opening ring are both horizontal end surfaces (it can also be said that the above two end surfaces are perpendicular to the central axis of the pipe). One of the inclined surfaces of these two included angles forms an acute angle θ3 with the above-mentioned end surface. Taking the first inclined surface and the third inclined surface as an example, referring to the accompanying drawings of the specification, during the installation and disassembly of the outer pipe and the inner pipe, the first inclined surface and the third inclined surface cooperate with each other. The acute angle θ3 is 20° - 40°, and the θ3 can be 20°, 23°, 27°, 30°, 32°, 35°, 38°, 40°. More specifically: A number of first ratchet teeth are provided on the inner and outer perimeters, and the upper end of the opening ring is covered with second ratchet teeth.

[0035] In the present invention, vertical ribs 40 located in the annular groove are spaced on the inner peripheral wall of the opening ring.

[0036] In a preferred embodiment of the present invention, the first boss and the second convex ring move on the same circumference, the first ratchet tooth and the second ratchet tooth move on the same circumference, and the second ratchet tooth is located on the inner circumference of the first boss.

[0037] The installation process of the two pipe fittings of the present invention is as follows:

[0038] Referring to the accompanying drawings of the specification Figure 1 , the opening ring is sleeved in the annular groove between the first convex ring and the second convex ring of the inner pipe. The opening ring can rotate freely in the annular groove. In an embodiment, it cannot move axially either; at this time, the outer pipe wraps the inner pipe from bottom to top.

[0039] Referring to the accompanying drawings of the specification Figure 2 , during the upward movement of the outer pipe, the second guiding inclined surface of the second boss on the inner circumference of the outer pipe and the first guiding inclined surface of the first boss of the opening ring guide each other, causing the opening ring to rotate. The second boss on the inner circumference of the outer pipe passes through the gap between the two first bosses of the opening ring, and the outer pipe continues to move upward.

[0040] Referring to the accompanying drawings of the specification Figure 3 , when the outer pipe continues to move upward, at this time, the step surface of the outer pipe contacts the lower edge of the first boss of the opening ring, driving the opening ring to move upward as well; the opening ring moves upward under the drive of the outer pipe, causing the second ratchet tooth of the opening ring to engage with the first ratchet tooth of the inner pipe.

[0041] Reference Manual Attachments Figure 4 , maintain the upward force on the outer tube so that the second ratchet of the open ring meshes with the first ratchet of the inner tube, and rotate the outer tube at the same time; because the open ring is meshed with the inner tube by two oblique teeth and remains stationary, the outer tube rotates relative to the open ring, compressing the convex rib of the open ring, causing the open ring to deform toward the center of the circle, so that the two ends of the opening of the open ring are close to each other, and the inner tube boss passes over the convex rib of the open ring until it hits the stopper of the open ring.

[0042] Reference Manual Attachments Figure 5 , Figure 6 , Figure 7 At this time, the second boss on the inner circumference of the outer tube hits the stopper of the open ring, and the outer tube drives the open ring to rotate together. When the rotational force is greater than the meshing force between the first ratchet of the inner tube and the second ratchet of the open ring, the second ratchet of the open ring disengages from the outer tube bevel teeth. At this time, the second boss on the inner circumference of the outer tube, the first boss of the open ring and the first convex ring of the inner tube, and the second convex ring form a step limit, so that the inner and outer tubes are connected together, and the installation is completed. Since the open ring itself is elastic, the convex ribs of the open ring and the stopper limit the second boss on the inner circumference of the outer tube. When there is no upward force, the outer tube can rotate freely around the inner tube with the opening, and the first boss of the open ring and the second boss on the inner circumference of the outer tube will not disengage.

[0043] When the two pipes need to be separated, press upwards and rotate in the opposite direction to disassemble the inner and outer pipes; and the disassembly force can be adjusted by adjusting the angles on both sides of the two ratchets.

[0044] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not depart from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. A quick disassembly and assembly structure for a pipeline, comprising an inner pipe and an outer pipe that can be inserted into each other, characterized in that, An annular groove is provided at one end of the outer tube into which the inner tube is inserted. An opening ring is sleeved on the outer periphery of the inner tube and is located in the annular groove. The opening ring can rotate around the inner tube. On the outer periphery of the inner tube above the annular groove, a first ratchet is provided. On the upper end face of the opening ring, a second ratchet is provided which can cooperate with the first ratchet. On the outer periphery of the opening ring, a first boss is further provided. On the inner periphery of the outer tube, a stepped surface is provided which can cooperate with the lower end of the first boss. On the inner periphery of the outer tube, a second boss is also provided which can cooperate with the first boss. On the outer peripheral wall of the opening ring, a rib is provided. The rib is located on one side beside the first boss above. On the other side beside the first boss above, a stop block is provided. The rib and the stop block can keep the second boss above the first boss. On both sides below the first boss, at least one first guiding inclined surface is provided. On both sides above the second boss, at least one second guiding inclined surface is provided. On both sides below the first boss, first guiding inclined surfaces are provided. The first guiding inclined surfaces contract from top to bottom on both sides below the first boss. On both sides above the second boss, second guiding inclined surfaces are provided. The second guiding inclined surfaces contract from top to bottom on both sides above the second boss. On the outer periphery of the opening ring, the first bosses are annularly distributed. A gap is formed between two adjacent first bosses. The second boss can move up and down in this gap. On the inner peripheral wall of the outer tube, second bosses that cooperate with the first bosses are evenly distributed. The first ratchet includes a first inclined surface and a second inclined surface extending downward from the lower end face of the first convex ring. The included angle formed by the first inclined surface and the second inclined surface is 60° - 90°. The second ratchet includes a third inclined surface and a fourth inclined surface extending upward from the upper end face of the opening ring. The included angle formed by the third inclined surface and the fourth inclined surface is 60° - 90°. One of the inclined surfaces of the two included angles forms an acute angle θ3 with the above-mentioned end face. The acute angle θ3 is 20° - 40°.

2. The quick disassembly and assembly structure of a pipeline according to claim 1, characterized in that, A first pointed angle facing downward is formed below the first boss. A second pointed angle facing upward is formed above the second boss.

3. The quick disassembly and assembly structure of a pipeline according to claim 2, characterized in that, On the outer periphery of the inner tube, a first convex ring and a second convex ring are arranged up and down. An annular groove is formed between the first convex ring and the second convex ring. The first ratchet is provided on the lower end face of the first convex ring.

4. A quick disassembly and assembly structure of a pipeline according to claim 1, characterized in that On the inner peripheral wall of the opening ring, vertical ribs are spaced and arranged in the annular groove.

5. The quick disassembly and assembly structure of a pipeline according to claim 4, characterized in that, On the outer periphery of the inner tube, a number of first ratchets are provided. The upper end of the opening ring is covered with second ratchets.

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