CN211649365U - Sealing device for pipeline interface - Google Patents
Sealing device for pipeline interface Download PDFInfo
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- CN211649365U CN211649365U CN202020333278.1U CN202020333278U CN211649365U CN 211649365 U CN211649365 U CN 211649365U CN 202020333278 U CN202020333278 U CN 202020333278U CN 211649365 U CN211649365 U CN 211649365U
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Abstract
The utility model relates to a sealing device of pipeline interface belongs to the auxiliary device of plumbing construction, characterized by: the sealing device of the pipeline interface further comprises an air bag groove I, an air bag groove II, an air needle through hole, an air bag and an air inlet needle, wherein the air bag groove I, the air bag groove II and the air bag which are identical in structure are arranged between the left branch pipe and the left connecting pipe and between the right branch pipe and the right connecting pipe, the inner wall of the left end section of the left branch pipe is circumferentially provided with the U-shaped air bag groove I, the outer wall of the right end section of the left connecting pipe is circumferentially provided with the air bag groove II, the air needle through hole is formed in the air bag groove I, circular hollow inflation air bags with the air inlet needles are arranged in the air bag groove I and the air bag groove II, the air inlet needles on the air bags are arranged in the air needle through hole, and when the air is filled with air, the air inlet needles partially extend out of the pipe wall of the left branch pipe, so that the sealing device is simple in structure, convenient and reliable to use, the.
Description
Technical Field
The utility model belongs to the auxiliary device of plumbing construction especially relates to a sealing device of pipeline.
Background
In the water supply and drainage construction of urban construction, the construction of a sewage pipeline with the diameter of the pipeline not exceeding 800mm is often met, when the soil layer around the sewage pipeline is poor in geology, the requirement on the sealing performance of the connector between the pipeline and the pipeline or the connection between the pipeline and a shaft is met, and in northern areas which are cold in winter, the water seepage of the connector of the pipeline can often cause frost heaving damage to the pipe.
Disclosure of Invention
The utility model aims at providing a sealing device of pipeline interface, not only simple structure, convenient to use, reliable improve the leakproofness of pipeline interface moreover, guarantee the construction quality of pipeline.
The purpose of the utility model is realized like this: the utility model provides a sealing device of pipeline interface, includes pit shaft, left connecting pipe and right connecting pipe, the pit shaft be vertical setting, the pit shaft include barrel, left branch pipe and right branch pipe again, the barrel be the cylinder, have the left branch pipe that link up with it in the left side of barrel, have the right branch pipe that link up with it on the right side of barrel, this left branch pipe, right branch pipe symmetry set up and are the straight pipeline of circle, left connecting pipe or right connecting pipe be the straight pipe of circle that the external diameter is less than the internal diameter of left branch pipe or right branch pipe, set up the right-hand member section of left connecting pipe in the left end section of left branch pipe, set up the left end section of right connecting pipe in the right end section of right branch pipe, characterized by: this kind of sealing device of pipeline interface still includes gasbag groove I, gasbag groove II, gas needle through-hole, gasbag and air inlet needle left branch pipe and left connecting pipe between and all set up the same gasbag groove I of structure, gasbag groove II and gasbag between right branch pipe and right connecting pipe, now regard as example to set up gasbag groove I, gasbag groove II and gasbag between left branch pipe and left connecting pipe and do further explanation: the air bag groove I and the air bag groove II are circular grooves with U-shaped cross sections, the groove width and the groove depth of the air bag groove I are the same as those of the air bag groove II, the air bag groove I is formed in the portion, corresponding to the portion, connected with the left connecting pipe, of the inner wall of the left end section of the left branch pipe, the air bag groove I of the left branch pipe is provided with a radial air needle through hole, the diameter of the air needle through hole is larger than the outer diameter of an air inlet needle, the air bag groove II is formed in the portion, corresponding to the portion, connected with the left connecting pipe, of the left branch pipe, on the outer wall of the right end section of the left connecting pipe, the air bag groove II and the air bag groove I are overlapped, an annular air bag is arranged in the air bag groove I and the air bag groove II, the air bag is a hollow inflatable air bag with the air inlet needle, the air bag can be made of rubber, and the inner diameter of the air bag before inflation is, the outer diameter of the air bag after being full of gas is greater than the diameter of the groove bottom circle of the air bag groove I, the diameter of the cross section of the air bag after being full of gas is greater than or equal to the groove width of the air bag groove I, the width of the air bag groove I can be 50mm, the depth of the air bag groove I can be 20mm, an air inlet needle on the air bag is arranged in an air needle through hole in the air bag groove I, when the air bag is full of gas, the air inlet needle partially extends out of the pipe wall of the left branch pipe, the length of the air inlet needle can be 6cm, and the air inlet needle adopts a valve with a valve core on a bicycle inner tube.
When in use, the airbag which is not filled with air is fixed in the airbag groove I on the left end section of the left branch pipe, and the fixing mode is as follows: because the structure of the air bag is similar to that of an inner container of a bicycle and is flat under the condition of no inflation, the air bag is placed in an air bag groove I before inflation, an air inlet needle on the air bag is arranged in an air needle through hole, then the air bag is inflated until the air bag is contacted with the air bag groove I, a certain interaction force is formed between the air bag and the air bag groove I, so that the fixing effect is achieved, then a left connecting pipe is inserted into a connector of a left branch pipe of a shaft, the left connecting pipe enters an inner ring of the air bag by manually rotating the left connecting pipe, when the left connecting pipe is installed in place, the air bag groove II is overlapped with the air bag groove I, the screwing of the left connecting pipe is stopped, then an air outlet pipe of a universal inflating device (such as an inflator for a bicycle) is used for connecting the air bag, the air bag is inflated, different pressure values (corresponding to the air bags with different thicknesses and diameters, air pressure values, the air bag is enabled to bulge, the air bag is tightly attached to the air bag groove I and the air bag groove II, and good sealing performance of a connector between the left connecting pipe and a left branch pipe on the shaft is guaranteed.
In construction, the air pressure in the air bag is generally judged and controlled by practical experience: because the length of the air inlet needle is fixed, when the air bag is not inflated, the head of the air inlet needle on the air bag is positioned in the outlet of the through hole of the air needle and is generally positioned 15-20mm below the outlet, when the air bag is inflated, the air inlet needle is higher than the outlet of the through hole of the air needle, when the air bag is inflated by 3-4 cm, the air bag stops inflating, at the moment, the air is full, and the air bag is extruded with the air bag groove I and the air bag groove II.
The utility model provides a sealing device of pipeline interface, not only simple structure, convenient to use, reliable have improved the leakproofness of pipeline interface moreover, have guaranteed the construction quality of pipeline.
The following further describes a sealing device for a pipe joint according to the present invention with reference to the accompanying drawings and embodiments.
Drawings
Fig. 1 is a schematic main sectional view of a sealing device for a pipe joint according to the present invention.
In fig. 1: 1. left connecting pipe 2, air bag groove I3, air inlet needle 4, air bag 5-1, left branch pipe 5-2, right branch pipe 6, air needle through hole 7 and shaft
Detailed Description
As can be seen from fig. 1: a sealing device for a pipeline interface comprises a shaft 7, a left connecting pipe 1 and a right connecting pipe, wherein the shaft 7 is vertically arranged, the shaft 7 comprises a cylinder body, a left branch pipe 5-1 and a right branch pipe 5-2, the cylinder body is a cylinder body, the left side of the cylinder body is provided with a left branch pipe 5-1 which is communicated with the cylinder body, the right side of the cylinder body is provided with a right branch pipe 5-2 which is communicated with the cylinder body, the left branch pipe 5-1 and the right branch pipe 5-2 are symmetrically arranged and are round straight pipelines, the left connecting pipe 1 or the right connecting pipe is a round straight pipe with the outer diameter smaller than the inner diameter of the left branch pipe 5-1 or the right branch pipe 5-2, the right end section of the left connecting pipe 1 is arranged in the left end section of the left branch pipe 5-1, and the left end section of the right connecting pipe is arranged in the right end section of the right branch pipe 5-2, and the device is characterized in that: the sealing device for the pipeline connector further comprises an air bag groove I2, an air bag groove II, an air needle through hole 6, an air bag 4 and an air inlet needle 3, wherein the air bag groove I2, the air bag groove II and the air bag 4 which are the same in structure are arranged between the left branch pipe 5-1 and the left connecting pipe 1 and between the right branch pipe 5-2 and the right connecting pipe, and the air bag groove I2, the air bag groove II and the air bag 4 are arranged between the left branch pipe 5-1 and the left connecting pipe 1 as an example for further explanation: the air bag groove I2 and the air bag groove II are both circular grooves with U-shaped cross sections, the groove width and the groove depth of the air bag groove I2 are the same as those of the air bag groove II, the air bag groove I2 is formed in the circumference of the part, corresponding to the left branch pipe 5-1, connected with the left connecting pipe 1 on the inner wall of the left end section of the left branch pipe 5-1, the air bag groove I2 is formed in the inner wall of the left end section of the left branch pipe 5-1, meanwhile, a radial air needle through hole 6 is formed in the air bag groove I2, the diameter of the air needle through hole 6 is larger than the outer diameter of the air inlet needle 3, the air bag groove II is formed in the circumference of the part, corresponding to the left branch pipe 5-1, connected with the left connecting pipe 1, on the outer wall of the right end section of the left connecting pipe 1, an annular air bag 4 is arranged in the air bag groove I2 and the air bag groove II which, the air bag 4 can be made of rubber, the inner diameter of the air bag 4 before inflation is smaller than the outer diameter of the left connecting pipe 1, the outer diameter of the air bag 4 after inflation is larger than the diameter of the groove bottom circle of the air bag groove I2, the diameter of the cross section of the air bag 4 after inflation is larger than or equal to the groove width of the air bag groove I2, the width of the air bag groove I2 can be 50mm, the depth of the air bag groove I2 can be 20mm, the air inlet needle 3 on the air bag 4 is arranged in the air needle through hole 6 on the air bag groove I2, when inflation is performed, the air inlet needle 3 partially extends out of the pipe wall of the left branch pipe 5-1, the length of the air inlet needle 3 can be 6cm, and the air inlet needle 3 adopts an air valve with a valve core on a bicycle inner tube.
When in use, the airbag 4 which is not filled with air is firstly fixed in the airbag groove I2 on the left end section of the left branch pipe 5-1 in the following way: because the structure of the air bag 4 is similar to that of an inner container of a bicycle and is flat under the condition of no inflation, the air bag 4 is placed in the air bag groove I2 before fixation, then the air bag 4 is inflated to be in contact with the air bag groove I2, a certain interaction force is formed between the air bag 4 and the air bag groove I2, the fixation effect is achieved, meanwhile, the air inlet needle 3 on the air bag 4 is arranged in the air needle through hole 6, the left connecting pipe 1 is inserted into a connector of a left branch pipe 5-1 of a shaft, the left connecting pipe 5-1 is inserted into an inner ring of the air bag 4 by manually rotating the left connecting pipe 5-1, when the left connecting pipe 5-1 is installed in place, the air bag groove II and the air bag groove I2 are correspondingly overlapped with each other, the screwing of the left connecting pipe 5-1 is stopped, then the air bag 4 is inflated by using a universal inflating device (such as an inflator for a, The diameter of the air bag 4 is determined by repeated tests in advance and is measured by a universal barometer), so that the air bag 4 is expanded, the air bag 4 is tightly attached to the air bag groove I2 and the air bag groove II, and good sealing performance of an interface between the left connecting pipe 1 and a left branch pipe 5-1 on the shaft 7 is ensured.
The air pressure in the air bag 4 is generally judged and controlled by practical experience in construction: because the length of the air inlet needle 3 is fixed, when the air inlet needle is not inflated, the head of the air inlet needle 3 on the air bag 4 is positioned in the outlet of the air needle through hole 6 and is usually positioned at the position 15-20mm below the outlet, when the air bag 4 is inflated, the air inlet needle 3 is higher than the outlet of the air needle through hole 6, the air bag 4 stops inflating when the air inlet needle is higher by 3-4 cm, and the air bag 4 is extruded with a pipeline.
Claims (4)
1. A sealing device of a pipeline interface comprises a shaft (7), a left connecting pipe (1) and a right connecting pipe, wherein the shaft (7) is vertically arranged, the shaft (7) comprises a cylinder body, a left branch pipe (5-1) and a right branch pipe (5-2), the cylinder body is a cylinder body, the left side of the cylinder body is provided with the left branch pipe (5-1) communicated with the cylinder body, the right side of the cylinder body is provided with the right branch pipe (5-2) communicated with the cylinder body, the left branch pipe (5-1) and the right branch pipe (5-2) are symmetrically arranged and are round and straight pipelines, the left connecting pipe (1) or the right connecting pipe are round and straight pipelines, the outer diameter of each round and straight pipeline is smaller than the inner diameter of the left branch pipe (5-1) or the inner diameter of the right branch pipe (5-2), the right end section of the left connecting pipe (1) is arranged in the left end section, the left end section of the right connecting pipe is arranged in the right end section of the right branch pipe (5-2), and the device is characterized in that: the sealing device of the pipeline connector further comprises an air bag groove I (2), an air bag groove II, an air needle through hole (6), an air bag (4) and an air inlet needle (3), wherein the air bag groove I (2), the air bag groove II and the air bag (4) which are identical in structure are arranged between the left branch pipe (5-1) and the left connecting pipe (1) and between the right branch pipe (5-2) and the right connecting pipe respectively, the air bag groove I (2) and the air bag groove II are circular grooves with cross sections in a shape, the groove width and the groove depth of the air bag groove I (2) are identical to those of the air bag groove II, the air bag groove I (2) is arranged on the inner wall of the left end section of the left branch pipe (5-1) and is arranged on the circumference of the position, corresponding to the left branch pipe (5-1) and connected with the left connecting pipe (1), and meanwhile, the air needle through hole (6) in the radial direction is arranged on the air bag groove I (2), the diameter of the air needle through hole (6) is larger than the outer diameter of the air needle (3), an air bag groove II is formed in the outer wall of the right end section of the left connecting pipe (1) and is correspondingly positioned at the position, connected with the left connecting pipe (1), of the left branch pipe (5-1), annular air bags (4) are arranged in the air bag groove I (2) and the air bag groove II which are mutually overlapped, the air bags (4) are hollow inflatable air bags with the air needle (3), the inner diameter of the air bags (4) before inflation is smaller than the outer diameter of the left connecting pipe (1), the outer diameter of the air bags (4) after inflation is larger than the diameter of the groove bottom circle of the air bag groove I (2), the diameter of the cross section of the air bags (4) after inflation is larger than or equal to the groove width of the air bag groove I (2), the air needle (3) on the air bags (4) is arranged in the air needle through hole (6) on the air bag groove I (2), the air inlet needle (3) adopts an air valve with an air valve core on a bicycle inner tube.
2. A pipe joint sealing device according to claim 1, characterized in that the bladder (4) is made of rubber.
3. A pipe joint sealing device according to claim 1, wherein the width of the air bag groove i (2) is 50mm and the depth is 20 mm.
4. A pipe joint sealing device according to claim 1, wherein the length of the air inlet needle (3) is 6 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333278.1U CN211649365U (en) | 2020-03-17 | 2020-03-17 | Sealing device for pipeline interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333278.1U CN211649365U (en) | 2020-03-17 | 2020-03-17 | Sealing device for pipeline interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211649365U true CN211649365U (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020333278.1U Active CN211649365U (en) | 2020-03-17 | 2020-03-17 | Sealing device for pipeline interface |
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| Country | Link |
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| CN (1) | CN211649365U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855975A (en) * | 2021-01-15 | 2021-05-28 | 左淑芳 | Ball valve |
| CN116428439A (en) * | 2023-06-14 | 2023-07-14 | 齐齐哈尔大学 | Pipeline split-flow connecting device |
-
2020
- 2020-03-17 CN CN202020333278.1U patent/CN211649365U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855975A (en) * | 2021-01-15 | 2021-05-28 | 左淑芳 | Ball valve |
| CN112855975B (en) * | 2021-01-15 | 2021-11-19 | 天津市中核科技实业有限公司 | Ball valve |
| CN116428439A (en) * | 2023-06-14 | 2023-07-14 | 齐齐哈尔大学 | Pipeline split-flow connecting device |
| CN116428439B (en) * | 2023-06-14 | 2023-09-08 | 齐齐哈尔大学 | Pipeline split-flow connecting device |
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