CN217442798U - Pipeline gas valve gas tightness detection device - Google Patents
Pipeline gas valve gas tightness detection device Download PDFInfo
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- CN217442798U CN217442798U CN202221491390.3U CN202221491390U CN217442798U CN 217442798 U CN217442798 U CN 217442798U CN 202221491390 U CN202221491390 U CN 202221491390U CN 217442798 U CN217442798 U CN 217442798U
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- measuring pipe
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- pipe
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Abstract
The utility model relates to a pipeline pressure measurement technical field, specific pipeline gas valve gas tightness detection device that says so, include: the pressure measuring pipe, the pressure measuring chamber, the lifting button and the air nozzle assembly; a fuel gas conveying channel is formed inside the pressure measuring pipe; the pressure measuring pipe penetrates through the pressure measuring chamber; the air nozzle assembly is arranged on the pipe wall of the pressure measuring pipe and is communicated with the pressure measuring chamber through the conveying passage; the lifting button with pressure measurement cavity swing joint, the utility model discloses close the self-closing valve after 15 minutes of pressurize and carry the button, if carry the button and do not inhale back, then do not have the leak test qualified. If the lifting button is sucked back, leakage exists, the pipeline is unqualified, the tightness of the pipeline can be conveniently tested when the pipeline is used at home, and the hidden danger that gas leakage caused by the self-closing valve defects is caused to cause damage after the pipeline is installed is avoided.
Description
Technical Field
The utility model relates to a pipeline pressure measurement technical field particularly, relates to pipeline gas valve gas tightness detection device.
Background
The gas self-closing valve for pipeline is installed on the pipeline of low-pressure gas system, and when the gas supply pressure of pipeline is under-pressure or over-pressure, it has no need of using electricity or other external power, and can be automatically closed and manually opened. The self-closing valve arranged at the joint of the tail end of the pipeline and the rubber pipe behind the gas meter has the pressure-loss closing function. For this purpose, the airtightness of the indoor gas pipeline needs to be detected. The detection method comprises the following steps: firstly, the self-closing valve lifting button is kept in an opening state. And (4) closing the gas stove, then closing the main valve for 15 minutes, and then closing the self-closing valve lifting button, wherein if the lifting button is not sucked back, the indoor pipeline system is not leaked. If the lifting button is sucked back, the indoor pipeline system is indicated to have leakage, and the important point should be checked.
The gas self-closing valve has no pressure measuring device, and is specially tested by means of special testing equipment of manufacturers. However, after the gas-tight self-sealing valve is purchased and installed by an individual person, the gas-tight self-sealing valve cannot be quickly detected, and the hidden danger of gas leakage and harm caused by the self-sealing valve defects exists after the gas-tight self-sealing valve is installed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides pipeline gas valve gas tightness detection device can effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
pipeline gas valve gas tightness detection device includes: the pressure measuring pipe, the pressure measuring chamber, the lifting button and the air nozzle assembly;
a fuel gas conveying channel is formed inside the piezometric tube;
the pressure measuring pipe penetrates through the pressure measuring chamber;
the air nozzle assembly is arranged on the pipe wall of the pressure measuring pipe and is communicated with the pressure measuring chamber through the conveying passage;
the lifting button is movably connected with the pressure measuring chamber;
and the gas enters the pressure measuring chamber from the gas nozzle assembly and pushes the lifting button to change the relative position so as to realize the detection of the gas tightness of the pressure measuring pipe.
Preferably, the two ends of the pressure measuring pipe are respectively provided with an air inlet end and an air outlet end, the air inlet end of the pressure measuring pipe is provided with a connecting portion, the inner wall of the connecting portion is provided with a second connecting thread, and the outer wall of the air outlet end of the pressure measuring pipe is provided with a first connecting thread.
Preferably, the lifting button is provided with conventional lines and pressure measuring lines at intervals along the radial direction perpendicular to the pressure measuring pipe;
the joint of the conventional line and the pressure measuring cavity is overlapped, and the gas is conveyed corresponding to the pressure measuring pipe;
and overlapping the joint of the pressure measuring line and the pressure measuring cavity, and detecting the air tightness of the pressure measuring line correspondingly.
Preferably, the air faucet assembly comprises a shell and an air faucet, wherein the shell is sleeved on the outer wall of the air faucet, and a clamping part is integrally formed on the outer wall of the shell.
Preferably, the pipe wall of the piezometric pipe is provided with a hole matched with the shell, and the inner wall of the hole is provided with threads.
Preferably, the outer wall of the shell is provided with an upper external thread and a lower external thread, and the upper external thread and the lower external thread are respectively positioned on two sides of the clamping part;
after the lower external threads are screwed and connected with the threads on the inner wall of the hole, the clamping part is abutted to the pressure measuring pipe.
Preferably, the inner wall of the shell is provided with internal threads, and the internal threads are screwed with the threads arranged on the air tap shell.
Preferably, the joint of the clamping part and the piezometer tube is jointed through a sealing element;
the air tap output port extends into the pressure measuring tube cavity.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the second connecting thread and the connecting thread that are equipped with make things convenient for the pressure-measuring pipe to be connected, the lower external screw thread that is equipped with makes things convenient for the casing installation to and the leakproofness of pressure-measuring pipe is ensured to chucking portion and the sealing member that is equipped with, and the internal thread that is equipped with simultaneously has made things convenient for the installation of air cock, ensures the holistic leakproofness of equipment and the convenience of installation.
2. The pressure measuring pipe is provided with a closed space, and the outside of the pressure measuring pipe is connected with an air tap by an inflator to apply pressure inwards. When the internal pressure is exposed from the lifting button mark and the side pressure line is overlapped with the connection part, the pressurization is stopped. And (4) closing the lifting button of the self-closing valve after keeping the pressure for 15 minutes, and if the lifting button is not sucked back, testing whether the leakage is qualified. If the lifting button is sucked back, leakage exists, the pipeline is unqualified, the tightness of the pipeline can be conveniently tested when the pipeline is used at home, and the hidden danger that gas leakage caused by the self-closing valve defects is caused to cause damage after the pipeline is installed is avoided.
Drawings
Fig. 1 is a schematic view of the overall structure of the gas tightness detection device for the pipeline gas valve of the present invention;
fig. 2 is a structural schematic diagram of the front view of the gas tightness detecting device for pipeline gas valves according to the present invention;
fig. 3 is an enlarged schematic structural diagram of a in fig. 2 of the gas tightness detecting device for pipeline gas valve of the present invention.
In the figure: 1. a piezometric tube; 101. a second connecting thread; 2. a connecting portion; 3. a pressure sensing chamber; 4. a first connecting thread; 5. lifting the button; 6. an air tap assembly; 601. a housing; 602. a seal member; 603. external threads are arranged; 604. a lower external thread; 605. an internal thread; 606. an air tap; 607. and a clamping part.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
As shown in fig. 1 to 3, the gas tightness detecting device for pipeline gas valves includes: the pressure measuring pipe 1, the pressure measuring chamber 3, the lifting button 5 and the air nozzle assembly 6;
a fuel gas conveying channel is formed inside the pressure measuring pipe 1;
the pressure measuring pipe 1 penetrates through the pressure measuring chamber 3;
the air nozzle assembly 6 is arranged on the pipe wall of the pressure measuring pipe 1 and is communicated with the pressure measuring chamber 3 through a conveying passage;
the lifting button 5 is movably connected with the pressure measuring chamber 3;
wherein, gaseous air cock subassembly 6 gets into pressure measurement cavity 3 to promote and carry button 5 change relative position, in order to realize the detection to pressure-measuring pipe 1 gas tightness.
In this embodiment, pressure-measuring pipe 1 both ends are the inlet end respectively and give vent to anger the end, and pressure-measuring pipe 1 inlet end is provided with connecting portion 2, and connecting portion 2 inner wall is equipped with second connecting thread 101, and pressure-measuring pipe 1 gives vent to anger and holds the outer wall and be equipped with first connecting thread 4.
In the embodiment, the lifting knob 5 is provided with a conventional line and a pressure measuring line at intervals along the radial direction of the vertical pressure measuring pipe 1;
the joint of the conventional line and the pressure measuring chamber 3 is overlapped, and the gas is conveyed corresponding to the pressure measuring pipe 1;
and (4) superposing the joint of the pressure measuring line and the pressure measuring cavity 3, and detecting the air tightness of the corresponding pressure measuring pipe 1.
In this embodiment, the air nozzle assembly 6 includes a housing 601 and an air nozzle 606, the housing 601 is sleeved on the outer wall of the air nozzle 606, and a fastening portion 607 is integrally formed on the outer wall of the housing 601.
In this embodiment, the pipe wall of the pressure measuring pipe 1 is provided with a hole matched with the shell 601, and the inner wall of the hole is provided with threads.
In this embodiment, the outer wall of the housing 601 is provided with an upper external thread 603 and a lower external thread 604, and the upper external thread 603 and the lower external thread 604 are respectively located at two sides of the clamping part 607;
after the lower external thread 604 is screwed with the thread on the inner wall of the hole, the clamping part 607 is abutted against the piezometer tube 1.
In this embodiment, the inner wall of the housing 601 is provided with an internal thread 605, and the internal thread 605 is screwed with the thread provided on the outer shell of the air faucet 606.
In the embodiment, the joint of the clamping portion 607 and the pressure measuring tube 1 is jointed by a sealing member 602;
the outlet of the air tap 606 extends into the cavity of the piezometer tube 1.
The working principle of the gas tightness detection device for the pipeline gas valve is as follows: the second connecting thread 101 and the first connecting thread 4 that are equipped with make things convenient for pressure-measuring pipe 1 to connect, the lower external screw thread 604 that is equipped with makes things convenient for casing 601 to install to and chucking portion 607 and the sealing member 602 that are equipped with ensure the leakproofness of pressure-measuring pipe 1, the internal thread 605 that is equipped with simultaneously has made things convenient for the installation of air cock 606, ensures the holistic leakproofness of equipment and the convenience of installation.
The pressure measuring pipe 1 is internally provided with a closed space, and the outside is connected with the air nozzle 606 by using an inflator to apply pressure inwards. When the internal pressure is exposed from the lifting button mark and the side pressure line is overlapped with the connection part, the pressurization is stopped. And (4) closing the lifting button of the self-closing valve after keeping the pressure for 15 minutes, and if the lifting button is not sucked back, testing whether the leakage is qualified. If the lifting button is sucked back, leakage exists, the pipeline is unqualified, the tightness of the pipeline can be conveniently tested when the pipeline is used at home, and the hidden danger that gas leakage caused by the self-closing valve defects is caused to cause damage after the pipeline is installed is avoided.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all embodiments cannot be exhausted here, and all obvious variations or changes introduced by the technical solution of the present invention are still within the protection scope of the present invention.
Claims (8)
1. Pipeline gas valve gas tightness detection device which characterized in that includes: the pressure measuring pipe (1), the pressure measuring chamber (3), the lifting button (5) and the air nozzle assembly (6);
a fuel gas conveying channel is formed inside the pressure measuring pipe (1);
the pressure measuring pipe (1) penetrates through the pressure measuring chamber (3);
the air nozzle assembly (6) is arranged on the pipe wall of the pressure measuring pipe (1) and is communicated with the pressure measuring chamber (3) through the conveying passage;
the lifting button (5) is movably connected with the pressure measuring chamber (3);
the gas enters the pressure measuring chamber (3) from the gas nozzle assembly (6) and pushes the lifting button (5) to change the relative position, so that the gas tightness of the pressure measuring pipe (1) can be detected.
2. The pipeline gas valve airtightness detection apparatus according to claim 1, wherein: the pressure measuring pipe is characterized in that the two ends of the pressure measuring pipe (1) are respectively an air inlet end and an air outlet end, the air inlet end of the pressure measuring pipe (1) is provided with a connecting part (2), the inner wall of the connecting part (2) is provided with a second connecting thread (101), and the outer wall of the air outlet end of the pressure measuring pipe (1) is provided with a first connecting thread (4).
3. The pipeline gas valve airtightness detection apparatus according to claim 1, wherein: the lifting button (5) is provided with conventional lines and pressure measuring lines at intervals along the radial direction perpendicular to the pressure measuring pipe (1);
the joint of the conventional line and the pressure measuring chamber (3) is overlapped, and fuel gas is conveyed corresponding to the pressure measuring pipe (1);
and overlapping the joint of the pressure measuring line and the pressure measuring chamber (3) and detecting the air tightness of the pressure measuring pipe (1).
4. The pipeline gas valve airtightness detection apparatus according to any one of claims 1 to 3, wherein: air cock subassembly (6) are including casing (601) and air cock (606), air cock (606) outer wall cover is equipped with casing (601), casing (601) outer wall integration is formed with chucking portion (607).
5. The pipeline gas valve airtightness detection apparatus according to claim 4, wherein: the pipe wall of the pressure measuring pipe (1) is provided with a hole matched with the shell (601), and the inner wall of the hole is provided with threads.
6. The pipeline gas valve airtightness detection apparatus according to claim 5, wherein: an upper external thread (603) and a lower external thread (604) are arranged on the outer wall of the shell (601), and the upper external thread (603) and the lower external thread (604) are respectively positioned on two sides of the clamping part (607);
after the lower external thread (604) is screwed with the thread on the inner wall of the hole, the clamping part (607) is abutted to the piezometric tube (1).
7. The pipeline gas valve airtightness detection apparatus according to claim 6, wherein: the inner wall of the shell (601) is provided with an internal thread (605), and the internal thread (605) is screwed with the thread arranged on the outer shell of the air tap (606).
8. The pipeline gas valve airtightness detection apparatus according to claim 6, wherein: the joint of the clamping part (607) and the piezometer tube (1) is jointed through a sealing element (602);
the outlet of the air tap (606) extends into the cavity of the pressure measuring pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221491390.3U CN217442798U (en) | 2022-06-14 | 2022-06-14 | Pipeline gas valve gas tightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221491390.3U CN217442798U (en) | 2022-06-14 | 2022-06-14 | Pipeline gas valve gas tightness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217442798U true CN217442798U (en) | 2022-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221491390.3U Active CN217442798U (en) | 2022-06-14 | 2022-06-14 | Pipeline gas valve gas tightness detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217442798U (en) |
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2022
- 2022-06-14 CN CN202221491390.3U patent/CN217442798U/en active Active
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