CN210687146U - Flow-limiting safety assembly for gas pipeline system - Google Patents
Flow-limiting safety assembly for gas pipeline system Download PDFInfo
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- CN210687146U CN210687146U CN201921347591.4U CN201921347591U CN210687146U CN 210687146 U CN210687146 U CN 210687146U CN 201921347591 U CN201921347591 U CN 201921347591U CN 210687146 U CN210687146 U CN 210687146U
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- 238000007789 sealing Methods 0.000 claims abstract description 57
- 238000009434 installation Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to a gas pipe fitting field, concretely relates to gas piping system's current-limiting safety subassembly, its sealing ring is connected in the case and is acceptd the inside wall in chamber, it can slide on the support to adjust the pole, sealed dish is established at the tip of adjusting the pole, the elastic component is connected respectively in support and regulation pole, sealed dish deviates from the sealing ring motion under the spring action of elastic component, when the gas pressure in chamber of admitting air increases, the gas promotes sealed dish towards the sealing ring motion, the gas flow that makes this subassembly of flowing through is invariable all the time, ensure that the gas utensil is in abundant combustion state all the time, when the gas pressure in chamber of admitting air surpasses the rated value, the gas promotes sealed dish motion and makes its butt in the sealing ring, avoid the gas of too high pressure to damage.
Description
Technical Field
The utility model relates to a gas pipe fitting field especially relates to a gas piping system's current-limiting safety subassembly.
Background
The existing gas appliance generally has certain requirements on the pressure of gas, for example, the gas appliance can enter a full combustion state under a certain gas pressure, and the combustion efficiency of the gas appliance is the highest in the state. When the gas pressure exceeds the rated gas pressure of the gas appliance, the gas appliance cannot be fully combusted, even faults such as flameout, gas leakage and the like can occur, and the conditions of gas leakage, explosion, personnel poisoning and the like are very easy to cause. However, the current gas appliances lack a device capable of limiting the flow of the gas pressure.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the present invention provides a gas piping system's current-limiting safety subassembly to solve the problem that current gas utensil can't carry out the current-limiting to the gas pressure.
Based on this, the utility model provides a gas piping system's current-limiting safety subassembly, including body and restriction valve core, this internal chamber and the exhaust chamber of admitting air that is linked together in proper order of being equipped with is acceptd to this internal chamber, case, restriction valve core includes sealing ring, support, regulation pole, elastic component and sealed dish, the sealing ring connect in the inside wall in chamber is acceptd to the case, the leg joint in the body, just adjust pole and support sliding connection, the both ends of elastic component connect respectively in adjust pole and support, the end connection of adjusting the pole in sealed dish, sealed dish is in deviate from under the elastic force of elastic component the sealing ring motion.
Preferably, the support is provided with a guide inner hole coaxial with the valve core accommodating cavity, and the adjusting rod is slidably arranged in the guide inner hole in a penetrating manner.
Preferably, the sealing disc is provided with a pressure relief hole.
Preferably, a valve core mounting groove arranged along the circumferential direction of the valve core accommodating cavity is formed in the inner side wall of the valve core accommodating cavity, and the tail end of the support is embedded in the valve core mounting groove.
Preferably, the gas valve further comprises a limiting ring, one side of the valve core mounting groove penetrates through the gas inlet cavity, the inner diameter of the gas inlet cavity is larger than that of the valve core mounting groove, a step is formed between the gas inlet cavity and the valve core mounting groove, the limiting ring is located in the gas inlet cavity and movably connected with the gas inlet cavity and the valve core mounting groove, the end face of the limiting ring abuts against the gas inlet side of the support, and the gas exhaust side of the support abuts against the inner side wall of the valve core mounting groove.
Preferably, the inner side wall of the air inlet cavity is provided with internal threads.
Preferably, the end face of the limiting ring on the air inlet side is provided with a groove, and the groove is arranged along the radial direction of the limiting ring.
Preferably, the valve core accommodating cavity is further provided with a sealing limiting groove arranged along the circumferential direction of the valve core accommodating cavity, the sealing limiting groove is located on the exhaust side of the sealing disc, and the sealing ring is embedded in the sealing limiting groove.
Preferably, the end face and the inner side wall of the sealing ring are in fillet transition.
Preferably, the outer side wall of the exhaust end of the body is provided with an external thread.
The utility model discloses a gas piping system's current-limiting safety subassembly, its sealing ring is connected in the case and is acceptd the inside wall in chamber, it can slide on the support to adjust the pole, the tip at the regulation pole is established to sealed dish, the elastic component is connected respectively in the support and is adjusted the pole, sealed dish deviates from the sealing ring motion under the spring action of elastic component, when the gas pressure in chamber of admitting air increases, the gas promotes sealed dish towards the sealing ring motion, the gas flow that makes this subassembly of flowing through is unchangeable all the time, ensure that the gas utensil is in abundant combustion state all the time, when the gas pressure in chamber of admitting air surpasses the rated value, the gas promotes sealed dish motion and makes its butt in the sealing ring, avoid the gas of too.
Drawings
Fig. 1 is a schematic view of an open state of a flow-limiting valve core of a flow-limiting safety assembly of a gas pipeline system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a closed state of a flow-limiting valve core of a flow-limiting safety assembly of a gas pipeline system according to an embodiment of the present invention;
fig. 3 is an external structural schematic diagram of a body of a flow-limiting safety assembly of a gas piping system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an internal structure of a body of a flow-limiting safety assembly of a gas piping system according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a flow-limiting valve core of a flow-limiting safety assembly of a gas pipeline system according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a flow-limiting valve core of a flow-limiting safety assembly of a gas pipeline system according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a sealing ring of a flow-limiting safety assembly of a gas piping system according to an embodiment of the present invention;
fig. 8 is a schematic front view of a stop collar of a flow-limiting safety assembly of a gas pipeline system in accordance with an embodiment of the present invention;
fig. 9 is a schematic cross-sectional view of a stop collar of a flow-limiting safety assembly of a gas pipeline system according to an embodiment of the present invention;
fig. 10 is a schematic front view of a sealing disk of a flow-limiting safety assembly of a gas conduit system in accordance with an embodiment of the present invention;
fig. 11 is a schematic cross-sectional view of a sealing disk of a flow-limiting safety assembly of a gas conduit system according to an embodiment of the present invention.
Wherein, 1, a body; 11. an air inlet cavity; 111. an internal thread; 12. a valve core accommodating cavity; 121. a valve core mounting groove; 122. sealing the limiting groove; 13. an exhaust chamber; 14. a step; 15. an external thread; 2. a flow-limiting valve core; 21. a seal ring; 22. a support; 221. a support body; 221a, a guide inner hole; 222. a support arm; 23. adjusting a rod; 24. an elastic member; 25. sealing the disc; 251. a pressure relief vent; 3. a limiting ring; 31. a groove; 32. and limiting screw threads.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. In addition, unless otherwise specified, the terms "first" and "second" and the like in the description are used for distinguishing various components, elements, steps and the like in the description, and are not used for representing logical relationships or sequential relationships among the various components, elements, steps and the like.
Referring to fig. 1 to 11, a flow-limiting safety assembly of a gas pipeline system of the present invention is schematically shown, which includes a body 1 and a flow-limiting valve core 2. Be equipped with the chamber 11 that admits air, case that are linked together in proper order in body 1 and accept chamber 12 and exhaust chamber 13, admit air chamber 11 and communicate in the gas source, exhaust chamber 13 communicates in the gas utensil, and foretell chamber 11, case of admitting air accept chamber 12 and exhaust chamber 13 are the solid of revolution structure. The flow limiting valve core 2 comprises a sealing ring 21, a support 22, an adjusting rod 23, an elastic piece 24 and a sealing disc 25, wherein the sealing ring 21 is connected to the inner side wall of the valve core accommodating cavity 12, the support 22 is positioned in the valve core accommodating cavity 12, and the support 22 is connected to the body 1. The adjusting rod 23 is connected with the bracket 22 in a sliding mode, the adjusting rod 23 is arranged coaxially with the valve core accommodating cavity 12, and the sliding direction of the adjusting rod 23 is parallel to the axis of the valve core accommodating cavity 12. The two ends of the elastic part 24 are respectively connected with the adjusting rod 23 and the bracket 22, the end part of the adjusting rod 23 is connected with the sealing disc 25, the sealing disc 25 moves away from the sealing ring 21 under the elastic force action of the elastic part 24, and the ventilation area between the sealing disc 25 and the sealing ring 21 is the largest. The outer side wall of the exhaust end of the body 1 is provided with an external thread 15 so as to be connected with the existing gas pipe.
When the gas pressure of the gas inlet cavity 11 is gradually increased, the gas overcomes the elasticity of the elastic piece 24 and pushes the sealing disc 25 to move, the adjusting rod 23 and the bracket 22 slide relatively, the ventilation area between the sealing disc 25 and the sealing ring 21 is gradually reduced, the gas flow passing through the assembly is always kept unchanged, and then the gas appliance is always in a fully-burning state during burning.
When the gas pressure of the gas inlet cavity 11 exceeds the rated gas pressure, the gas pushes the sealing disc 25 to move, and the sealing disc 25 abuts against the sealing ring 21, as shown in fig. 2, the sealing disc 25 and the sealing ring 21 prevent the gas from entering the exhaust cavity 13 from the valve core accommodating cavity 12, so that the gas supply exceeding the rated gas pressure is cut off, the gas appliance is protected, and accidents such as flameout and leakage of the gas appliance are avoided.
As shown in fig. 5 and 6, the bracket 22 further includes a support body 221 and a plurality of support arms 222, the support body 221 is provided with a guide inner hole 221a coaxially disposed with the valve plug receiving cavity 12, the support arms 222 are disposed along a radial direction of the guide inner hole 221a, a free end of each support arm 222 is connected to an inner side wall of the valve plug receiving cavity 12, a fixed end of each support arm 222 is connected to the support body 221, and the adjustment rod 23 is slidably disposed through the guide inner hole 221 a.
As shown in fig. 10 and 11, the sealing disc 25 is provided with a pressure relief hole 251, so that pipeline vacuum caused by under-pressure at the terminal (i.e. the exhaust cavity 13) in the gas pipeline system when the flow limiting valve core 2 is closed can be avoided. The seal disk 25 is made of high-quality rigid plastic, and has metal strength and light weight. The elastic member 24 may be a compression spring or a simple combined elastic mechanism that can gather elastic force when compressed and can rebound when the pressure disappears.
As shown in fig. 4 and 5, the inner sidewall of the valve plug accommodating chamber 12 is provided with a valve plug mounting groove 121 arranged along the circumferential direction thereof, and the end of the holder 22 (i.e., the free end of the support arm 222) is inserted into the valve plug mounting groove 121. In order to facilitate the installation or the disassembly of the bracket 22, the assembly further comprises a limiting ring 3, one side of the valve core installation groove 121 penetrates through the air inlet cavity 11, and the inner diameter of the air inlet cavity 11 is larger than that of the valve core installation groove 121, so that a step 14 is formed between the air inlet cavity 11 and the valve core installation groove 121. Spacing ring 3 is located the chamber 11 and the two swing joint of admitting air, and the terminal surface butt of spacing ring 3 is in the side of admitting air of support 22, and the exhaust side butt of support 22 is in the inside wall of case mounting groove 121, specifically, is equipped with internal thread 111 on the inside wall of the chamber 11 of admitting air, and is corresponding, is equipped with on the outside wall of spacing ring 3 with above-mentioned internal thread 111 assorted stop thread 32, and the inside wall of spacing ring 3 and the chamber 11 of admitting air passes through the screw thread and links to each other promptly. As shown in fig. 8 and 9, a groove 31 is formed in the end surface of the stop collar 3 on the air inlet side, the groove 31 is arranged along the radial direction of the stop collar 3, and a maintainer can screw the stop collar 3 out of the air inlet cavity 11 by matching a straight screwdriver with the groove 31.
The inner side wall of the valve core accommodating cavity 12 is also provided with a sealing limiting groove 122 arranged along the circumferential direction of the valve core accommodating cavity, the sealing limiting groove 122 is positioned on the exhaust side of the sealing disc 25, the sealing ring 21 is embedded in the sealing limiting groove 122, and in addition, the inner diameter of the sealing limiting groove 122 is smaller than that of the valve core accommodating cavity 12. Between the terminal surface of sealing ring 21 and the inside wall be fillet transition, specifically, as shown in fig. 7, both terminal surfaces of sealing ring 21 have the fillet transition structure mentioned above, avoid adorning the contrary.
To sum up, the utility model discloses a gas piping system's current-limiting safety subassembly, its sealing ring 21 is connected in the case and is acceptd the inside wall of chamber 12, it can slide on support 22 to adjust pole 23, sealed dish 25 is established at the tip of adjusting pole 23, elastic component 24 is connected respectively in support 22 and is adjusted pole 23, sealed dish 25 deviates from sealing ring 21 motion under elastic component 24's elastic action, when the gas pressure increase of chamber 11 admits air, the gas promotes sealed dish 25 towards sealing ring 21 motion, the gas flow that makes this subassembly of flowing through is unchangeable all the time, ensure that the gas utensil is in abundant combustion state all the time, when the gas pressure of chamber 11 admits air exceeds the rated value, the gas promotes sealed dish 25 motion and makes its butt in sealing ring 21, avoid the gas of too high pressure to damage the gas utensil and lead.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a gas piping system's current-limiting safety subassembly, a serial communication port, including body and current-limiting valve core, this internal air inlet chamber, the case that is linked together in proper order of being equipped with accepts chamber and exhaust chamber, current-limiting valve core includes sealing ring, support, regulation pole, elastic component and sealed dish, the sealing ring connect in the inside wall in chamber is accepted to the case, the leg joint in the body, just adjust pole and support sliding connection, the both ends of elastic component connect respectively in adjust pole and support, the end connection of adjusting the pole in sealed dish, sealed dish is in deviate from under the elastic action of elastic component the sealing ring motion.
2. The gas piping system flow-limiting safety assembly of claim 1, wherein the holder has a guide bore coaxially disposed with the valve element receiving chamber, and the adjusting rod slidably penetrates the guide bore.
3. The gas piping system flow-limiting safety assembly of claim 1, wherein said sealing disk defines a pressure relief orifice.
4. The gas piping system flow-limiting safety assembly according to claim 1, wherein a valve body installation groove is formed in an inner sidewall of the valve body receiving chamber along a circumferential direction thereof, and a distal end of the holder is inserted into the valve body installation groove.
5. The gas piping system current-limiting safety assembly according to claim 4, further comprising a limiting ring, wherein one side of the valve element mounting groove penetrates through the air inlet chamber, and the inner diameter of the air inlet chamber is larger than that of the valve element mounting groove, so that a step is formed between the air inlet chamber and the valve element mounting groove, the limiting ring is located in the air inlet chamber and movably connected with the air inlet chamber, the end surface of the limiting ring abuts against the air inlet side of the bracket, and the air outlet side of the bracket abuts against the inner side wall of the valve element mounting groove.
6. The flow-limiting safety assembly of a gas conduit system of claim 1, wherein an internal thread is provided on an inner sidewall of the inlet chamber.
7. The gas piping system flow-limiting safety assembly of claim 5, wherein the stop ring has a groove on an end surface thereof on an inlet side, the groove being arranged in a radial direction of the stop ring.
8. The gas piping system's current-limiting safety subassembly of claim 1, wherein, the case accepting cavity's inside wall still is equipped with along its circumference arrangement's sealed spacing groove, the sealed spacing groove is located the exhaust side of sealed dish, the sealing ring inlays and locates in the sealed spacing groove.
9. The gas piping system flow-limiting safety assembly of claim 1, wherein the end face and the inner sidewall of the seal ring are rounded off.
10. The gas piping system flow-limiting safety assembly of claim 1, wherein an outer sidewall of the exhaust end of the body is provided with an external thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921347591.4U CN210687146U (en) | 2019-08-19 | 2019-08-19 | Flow-limiting safety assembly for gas pipeline system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921347591.4U CN210687146U (en) | 2019-08-19 | 2019-08-19 | Flow-limiting safety assembly for gas pipeline system |
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| Publication Number | Publication Date |
|---|---|
| CN210687146U true CN210687146U (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921347591.4U Active CN210687146U (en) | 2019-08-19 | 2019-08-19 | Flow-limiting safety assembly for gas pipeline system |
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| CN (1) | CN210687146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440038A (en) * | 2019-08-19 | 2019-11-12 | 日丰企业集团有限公司 | The current limliting security component of gas pipeline system |
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2019
- 2019-08-19 CN CN201921347591.4U patent/CN210687146U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440038A (en) * | 2019-08-19 | 2019-11-12 | 日丰企业集团有限公司 | The current limliting security component of gas pipeline system |
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