TWM643794U - Tap water pipe telescopic joint - Google Patents

Abstract

A water pipe expansion joint, comprising a first pipe, a second pipe, a third pipe, an anti-leak assembly and a fine-tuning assembly. The first pipe has a penetration section and a first outer ring, and the penetration section is provided with a penetration groove; the second pipe has a slide hole, the penetration groove of the first pipe faces the slide hole, and the leakage prevention assembly is located in the penetration groove and contacts the slide hole; the penetration section of the first pipe is partially in contact with the slide hole; the second pipe has a second outer ring; The nesting segment; the fine-tuning component is movably worn through the first outer ring and the second outer ring. When this creation is subjected to external influences, the first and second pipes can be moved towards or away from each other and will not be disconnected under the restriction of the fine adjustment parts. In the case of replacement, the appropriate overall axial length can be adjusted according to the situation.

Description

Water pipe expansion joint

This creation is related to water pipe pipelines, especially the combination of water pipe expansion joints.

In modern life, tap water can be obtained by turning on the faucet. The water plant draws water from lakes, streams, reservoirs and other sources. After water purification processes such as sedimentation, filtration, and disinfection, it provides users with clean, convenient and safe water through the operation of the pressurization station and the cooperation with the water pipeline system. Water is an indispensable necessity in people's life, and the life of water shortage seriously affects the life of the people and the production of industries.

Water pipes usually use two types of flat joints and socket joints. The flat joint is to join the flange flanges of two metal pipes through the cooperation of bolts and nuts, and at the same time clamp the rubber leak-proof gasket between them. The socket joint is to use one end of the metal pipe as the insertion end, and insert the insertion end into the receiving end of another metal pipe with a diameter larger than the insertion port.

Water supply pipes are built according to urban buildings and are widely distributed. Due to urban planning and construction, gas, sewage, power supply, and wires and pipelines are underground, making the entire underground pipeline very congested, and even many water pipes are covered and squeezed by other pipelines. Once the water pipe is subject to external environment (earthquake, temperature difference, heavy road load from the vehicle) and the axial displacement occurs, it is the main cause of water leakage at the joint of the water pipe. The long-term water leakage and the amount of water leakage will easily liquefy the soil, and the soil will be lost. Even the road cannot bear the vehicle load and form a sinkhole.

In addition, when replacing water pipes due to regular or leakage inspections, after using heavy equipment to excavate the road along the water pipes, it is necessary to measure the length of the parts to be replaced, especially in the case of extrusion and staggered arrangement of the pipes, which will cause measurement errors. In addition, in order for the new pipes to be replaced to connect to the original water pipes at both ends, the size is too compact and difficult to install, which is an urgent problem to be solved.

This creation provides a water pipe expansion joint, including a first pipe, a second pipe, a third pipe, a leak-proof assembly and a fine-tuning assembly, wherein: the first pipe includes a penetration section and a first outer ring, and the penetration section is provided with a penetration groove facing the end of the penetration section and opening outward on the outer peripheral side; the second pipe has a slide hole arranged along the axial direction of the second pipe, and the penetration groove of the first pipe faces the slide hole, and the leakage prevention assembly is located in the penetration groove and contacts the slide hole; The penetrating section is partly in contact with the sliding hole; the outer peripheral side of the second tube has a second outer ring; the third tube sleeves the second tube with a sleeve section and abuts against one side of the second outer ring, and bolts are used to lock the second outer ring and the sleeve section; the fine adjustment assembly is movably passed through the first outer ring and the second outer ring to limit the axial displacement of the first tube and the second tube to avoid mutual disengagement.

When the water pipe expansion joint of this creation is used, the first pipe and the second pipe are subjected to external effects (earthquake, vibration of vehicles running on the road, temperature difference, etc.), the first pipe and the second pipe can move axially towards or away from each other in the axial direction, and are limited by the fine adjustment parts to prevent the two from being disconnected.

Please refer to Figures 1 to 5, which disclose a water pipe expansion joint 1, including a first pipe 100, a second pipe 200, a third pipe 300, a leak-proof assembly 400, and a fine-tuning assembly 500, wherein: the first pipe 100 includes a penetration section 110 and a first outer ring 120, and the penetration section 110 is provided on the outer peripheral side with a penetration groove 111 that opens outward toward the end of the penetration section 110; 200 is axially provided with the sliding hole 210, and the penetration groove 111 of the first pipe 100 is facing the sliding hole 210, and the anti-leakage assembly 400 is located in the penetration groove 111 and is in contact with the sliding hole 210; the penetration section 110 of the first pipe 100 is partly in contact with the sliding hole 210; the second pipe 200 has a second outer ring 220 on the outer peripheral side; 200 and butt against one side of the second outer ring 220, and bolts 301 are used to lock the second outer ring 220 and the sleeve section 310; the fine adjustment assembly 500 is movably passed through the first outer ring 120 and the second outer ring 220 to limit the axial displacement of the first tube 100 and the second tube 200 to avoid mutual disengagement.

When the water pipe expansion joint 1 of the invention is actually used, the first pipe 100 and the second pipe 200 are subjected to external effects (earthquake, vibration of vehicles running on the road, temperature difference, etc.), the first pipe 100 and the second pipe 200 can move axially towards or away from each other in the axial direction, and under the limitation of the fine-tuning assembly 500, the two will not be disconnected. .

Further describe in detail the detailed features of the water pipe expansion joint 1 and the relationship between them. The first tube 100 is provided with a first fixing ring 130 spaced from the first outer ring 120 ; the third tube 300 is provided with a third fixing ring 320 opposite to the sleeve section 310 . In this embodiment, the first fixing ring 130 configured on the first tube 100 and the third fixing ring 320 configured on the third tube 300 make the first tube 100 and the third tube 300 form a flat joint at this end, or other known socket joints, and are not limited to those disclosed in the figure.

The first outer ring 120 is radially and outwardly offset from the first fixing ring 130 ; the second outer ring 220 is radially and outwardly offset compared to the third fixing ring 320 .

The anti-leakage assembly 400 includes a spacer 410 and a spacer 420 , and the spacer 410 is located between the spacer 420 and arranged in the penetration groove 111 . In this embodiment, three ring pads 420 and two ring pads 410 are taken as an example. The axial length of the spacer 410 is greater than the axial length of the spacer 420, and the spacer 410 is made of rubber that can be easily compressed and deformed by force, such as rubber, while the spacer 420 is not easily compressed and deformed by a force, such as plastic, and the spacers 410 and spacers 420 of this embodiment are arranged in a staggered manner in the penetration groove 111, and the outer peripheral sides of the spacers 410 and spacers 420 are in contact with the wall of the sliding hole 210, regardless of whether it is the first tube 100 Relative to the axial displacement of the second pipe 200, the axial displacement of the second pipe 200 relative to the first pipe 100, or both axial displacements, the inner peripheral side and outer peripheral side of the spacer 410 and the spacer block 420 can press against the groove surface of the penetration groove 111 and the wall surface of the sliding hole 210 respectively, so as to effectively prevent water leakage from the above positions.

In this embodiment, the water pipe expansion joint 1 further includes a hollow end cap 600 assembled on the penetrating section 110 of the first pipe 100, and the hollow end cap 600 is in communication with the third pipe 300 and the first pipe 100 without closing the first pipe 100; The outer peripheral side is in contact with the sliding hole 210 . The protruding section 610 is pressed against the spacer 420 , so that the effect of the hollow end cap 600 on the spacer 420 can be dispersed among other spacers 410 and spacers 420 , so as to avoid excessive wrinkling when the spacer 410 is directly and concentratedly deformed.

There are 12 groups of fine-tuning assemblies 500 used in this embodiment. The fine adjustment assembly 500 includes an adjustment rod 510 , a first nut 520 , a second nut 530 , a first spring 540 and a second spring 550 .

The two ends of the adjustment rod 510 are respectively a first threaded section 511 and a second threaded section 512, the first threaded section 511 movably passes through the first outer ring 120, and the second threaded section 512 movably passes through the second outer ring 220; the first nut 520 is screwed on the first threaded section 511; the second nut 530 is screwed on the second threaded section 512; the first spring 540 is passed through by the first threaded section 511, and the two ends of the first spring 540 Respectively bounce against the first outer ring 120 and the first nut 520 ; the second spring 550 is penetrated by the second threaded segment 512 , and the two ends of the second spring 550 respectively bounce against the second outer ring 220 and the second nut 530 .

The aforementioned first spring 540 and second spring 550 are compression springs. Through the normal stretching of the first spring 540 and the second spring 550, the first outer ring 120 and the second outer ring 220 are respectively pushed to keep the first pipe 100 and the second pipe 200 close to each other, thereby avoiding disconnection of the water pipe expansion joint 1 .

The adjusting rod 510 is provided with an adjusting section 513 between the first thread section 511 and the second thread section 512 ; the thread directions of the first thread section 511 and the second thread section 512 are different. In this way, the construction unit can directly rotate the mobilization section 513 of the adjusting rod 510 with a tool, and simultaneously adjust the compression amount (preload force) of the first spring 540 and the second spring 550.

Especially in this embodiment, the first spring 540 and the first nut 520 are symmetrically arranged on both sides of the first outer ring 120 ; the second spring 550 and the second spring 550 are symmetrically arranged on both sides of the second outer ring 220 . Therefore, the first spring 540 and the first nut 520 are disposed on both sides of the first outer ring 120 , and the second spring 550 and the second nut 530 are disposed on both sides of the second outer ring 220 .

Please refer to Figures 6 and 7, which disclose the first fixing ring 130 or the third fixing ring 320 in the water pipe joint 700 of the present invention to assemble the water pipe joint 700 with a moderate bending displacement. When the water pipe expansion joint 1 is used in conjunction with the water pipe joint 700 with bending displacement capability, the two provide axial displacement and bending deformation ability respectively, which can respond to external effects (earthquake, vehicle vibration, temperature difference, etc.), avoid damage to the pipeline due to improper stress and environmental factors, and maintain the safety of the water pipeline configuration. It also provides better choices and applications when repairing or replacing water pipes.

In addition, the protective cover 800 surrounds the water pipe expansion joint 1 and the water pipe joint 700. The protective cover 800 is disposed at the aforementioned position, and the external protection can be formed by the protective cover 800 to protect the water pipe expansion joint 1 and the water pipe joint 700 from being directly damaged by external forces.

1: Water pipe expansion joint 100: first tube 110: Penetrating section 111: Penetrating slot 120: The first outer ring 130: the first fixing ring 200: second tube 210: sliding hole 220: Second Outer Ring 300: the third tube 301: Bolt 310: Nesting section 320: the third fixing ring 400: Leak stop component 410: Gasket 420: spacer 500: fine-tuning components 510: Adjustment rod 511: The first thread segment 512: Second thread segment 513: transfer section 520: first nut 530: second nut 540: first spring 550: second spring 600: Hollow end cap 610: into the segment 700: water pipe connector 800: Protective cover

The first picture is a three-dimensional schematic diagram of this creative combination. The second picture is an exploded three-dimensional schematic diagram of this creation. The third picture is the schematic diagram of this creation buried in the road. The fourth picture is a cross-sectional schematic diagram of this creation. The fifth picture is an enlarged schematic diagram of this creation. The sixth picture is a schematic diagram of this creation being buried on the road after being combined with the water pipe joint. The seventh figure is a schematic diagram of the creation surrounded by a protective cover after being combined with the tap water pipe joint.

1: Water pipe expansion joint

100: first tube

120: The first outer ring

130: the first fixing ring

200: second tube

220: Second Outer Ring

300: the third tube

301: Bolt

310: Nesting section

320: the third fixing ring

500: fine-tuning components

Claims (10)

A water pipe expansion joint, including a first pipe, a second pipe, a third pipe, a leak-proof assembly and a fine-tuning assembly, wherein: The first pipe includes a penetrating section and a first outer ring, and the penetrating section is provided with a penetrating groove facing the end of the penetrating section and opening outward on the outer peripheral side; The second pipe has a sliding hole arranged axially along the second pipe, and the penetration groove of the first pipe faces the sliding hole, and the anti-leakage component is located in the penetration groove and is in contact with the sliding hole; the penetration section of the first pipe is partially in contact with the sliding hole; the outer peripheral side of the second pipe has a second outer ring; The third pipe sleeves the second pipe with a sleeve section and abuts against one side of the second outer ring, and bolts are used to lock the second outer ring and the sleeve section; The fine-tuning assembly is movably passed through the first outer ring and the second outer ring, so as to limit the axial displacement of the first tube and the second tube to avoid mutual disengagement. The water pipe expansion joint according to claim 1, wherein the first pipe is provided with a first fixing ring spaced from the first outer ring; the third pipe is provided with a third fixing ring opposite to the sleeve section. The water pipe expansion joint according to claim 2, wherein the first outer ring is radially and outwardly offset from the first fixing ring; the second outer ring is radially and outwardly offset from the third fixing ring. The water pipe expansion joint according to claim 2, wherein the first fixing ring or the third fixing ring is assembled with a water pipe joint having a moderate bending displacement. The water pipe expansion joint according to claim 1, wherein the anti-leakage component includes a gasket and a pad, and the gasket is located between the pads and arranged in the penetration groove. The water pipe expansion joint as described in Claim 1 further includes a hollow end cap assembled on the penetration section of the first pipe, and the hollow end cap is connected to the third pipe and the first pipe without closing the first pipe; the hollow end cap has a penetration section in the penetration groove and presses against the leak-proof component, and the outer peripheral side of the penetration section is in contact with the sliding hole. The water pipe expansion joint according to claim 1, wherein the fine adjustment assembly includes an adjustment rod, a first nut, a second nut, a first spring and a second spring. The water pipe expansion joint as described in claim 7, wherein the two ends of the adjustment rod are respectively a first threaded section and a second threaded section, the first threaded section movably passes through the first outer ring, and the second threaded section movably passes through the second outer ring; The first nut is screwed on the first thread segment; the second nut is screwed on the second thread segment; The first spring is pierced by the first thread segment, and the two ends of the first spring spring against the first outer ring and the first nut respectively; The second spring is passed through by the second threaded segment, and the two ends of the second spring spring against the second outer ring and the second nut respectively. The water pipe expansion joint according to claim 8, wherein the adjusting rod is provided with a mobilizing section between the first threaded section and the second threaded section. The water pipe expansion joint according to claim 7, wherein the first spring and the first nut are symmetrically arranged on both sides of the first outer ring; the second spring and the second spring are symmetrically arranged on both sides of the second outer ring.