CN213541426U - Multifunctional gas self-closing valve - Google Patents
Multifunctional gas self-closing valve Download PDFInfo
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- CN213541426U CN213541426U CN202022569919.6U CN202022569919U CN213541426U CN 213541426 U CN213541426 U CN 213541426U CN 202022569919 U CN202022569919 U CN 202022569919U CN 213541426 U CN213541426 U CN 213541426U
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Abstract
The utility model discloses a multi-functional gas self-closing valve belongs to gas valve technical field. The method comprises the following steps: the self-closing valve comprises a self-closing valve inlet end and a self-closing valve outlet end, wherein a self-closing valve cover is fixedly connected to one side of a self-closing valve body, a slidable valve rod penetrates through the self-closing valve cover, a slidable valve core penetrates through a self-closing valve fluid channel, a push rod capable of moving along the radial direction of the valve core is arranged on the side wall of the valve core, the push rod can be in contact with or separated from the end part of the valve rod located in the self-closing valve body, the cut-off valve inlet end is communicated with the self-closing valve outlet end, a cut-off assembly is. This multi-functional gas self-closing valve, when the superpressure of gas appears in the pipeline, under-pressure and overflow, the homoenergetic effectively cuts off the valve body, and the trip valve is installed in the self-closing valve exit end, cuts off the reaction sensitively, and can assist the staff to carry out the judgement of cutting off the reason.
Description
Technical Field
The utility model relates to a gas valve technical field specifically relates to a multi-functional gas self-closing valve.
Background
The self-closing valve for gas in pipeline is installed on the pipeline of low pressure gas system, and when gas leakage occurs in household gas pipeline and the gas supply pressure is too low or too high, it can be automatically closed without using electricity or other external power and must be manually opened. In the existing self-closing valve, a cutting-off functional component is arranged at the air inlet end of the valve, and a certain distance is reserved between the cutting-off functional component and the joint of a rubber pipe at the air outlet end. When the rubber tube falls off, the cutting reaction is not sensitive enough. Meanwhile, the cutting-off assembly is arranged at the air inlet end of the valve, and no matter which condition is self-closing and cutting off, the self-closing valve top cover can be closed, so that the reason for cutting off can not be judged.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the multifunctional gas self-closing valve is provided, when gas overpressure, underpressure and overflow occur in a pipeline, the valve body can be effectively cut off, the cut-off is sensitive, and workers can be assisted to judge the cut-off reason.
The specific technical scheme is as follows:
a multifunctional gas self-closing valve mainly comprises: self-closing valve and shut-off valve.
The self-closing valve comprises a self-closing valve body and a self-closing valve fluid channel penetrating through the self-closing valve body, wherein the two ends of the self-closing valve body are respectively provided with a self-closing valve inlet end and a self-closing valve outlet end which are communicated with the self-closing valve fluid channel;
the shut-off valve comprises a shut-off valve body and a shut-off valve fluid channel penetrating through the shut-off valve body, wherein the two ends of the shut-off valve body are respectively provided with a shut-off valve inlet end and a shut-off valve outlet end which are communicated with the shut-off valve fluid channel, the shut-off valve inlet end is communicated with the self-closing valve outlet end, a rotatable ball body is further arranged in the shut-off valve body, a through hole is formed in the ball body in a penetrating mode, a shut-off assembly is arranged in the shut-off.
The multifunctional gas self-closing valve is characterized by further comprising a cutting valve rod, one end of the cutting valve rod penetrates through the cutting valve body and is connected with the ball body, the cutting valve rod can rotate along the axial direction of the cutting valve rod, and a handle is fixedly arranged at the other end of the cutting valve rod.
The multifunctional gas self-closing valve is characterized by further comprising a top cover, wherein the top cover is arranged on one side, away from the self-closing valve body, of the self-closing valve cover, and is connected with one end of the valve rod.
The multifunctional gas self-closing valve is characterized in that the outlet end of the self-closing valve is provided with a first assembling step, the inlet end of the cut-off valve is provided with a second assembling step, the first assembling step is matched with the second assembling step, and a sealing ring is arranged between the first assembling step and the second assembling step.
The multifunctional gas self-closing valve is also characterized in that the cutting assembly comprises a cutting sleeve, a cutting frame, a cutting core and an elastic piece, the cutting sleeve is arranged in the fluid channel of the cutting valve, the cutting core is arranged in the cutting sleeve in a sliding manner along the length direction of the cutting core, one end of the cutting frame is connected with the cutting core, and the elastic piece is sleeved on the outer side of the cutting core.
The multifunctional gas self-closing valve is further characterized in that a gasket is sleeved on the outer side of the cutting sleeve, and a check ring is sleeved at one end, close to the cutting core, of the cutting frame.
The multifunctional gas self-closing valve is characterized in that a movable diaphragm is arranged at the end part of the valve rod, which is positioned in the self-closing valve body, the diaphragm can slide along the length direction of the valve rod, and the edge of the diaphragm is connected with the self-closing valve body.
The multifunctional gas self-closing valve is also characterized in that the longitudinal section of the push rod is T-shaped, and the outer side of the push rod is sleeved with the magnetic component which can be attracted with the valve rod.
The positive effects of the technical scheme are as follows:
the utility model provides a pair of multi-functional gas self-closing valve combines with the trip valve through the self-closing valve, under the condition with the help of outside power, realizes the valve body at gaseous superpressure, under-voltage and overflow under the condition self-closing, effectively prevents the gas leakage in the valve body, safe and reliable. The stop valve is installed at the outlet end of the self-closing valve, when the self-closing valve is cut off due to gas overflow, the self-closing valve is not closed, only the stop valve is cut off, and therefore the stop valve can help workers to judge whether the cause of pipeline cut-off is overpressure or underpressure or overflow, and can assist the workers in judging problems. The trip valve is installed in the self-closing valve end of giving vent to anger, if the rubber tube drops, and this kind of mounting means compares the trip valve and installs in the inlet end, and the reaction is more sensitive.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a multifunctional gas self-closing valve of the present invention;
FIG. 2 is a schematic structural view of a cut-off valve in an embodiment of the multifunctional gas self-closing valve of the present invention;
FIG. 3 is a schematic structural diagram of a cutting assembly in an embodiment of the multifunctional gas self-closing valve of the present invention;
FIG. 4 is a schematic structural diagram of an embodiment of a multifunctional gas self-closing valve according to the present invention under a normal working condition;
FIG. 5 is a schematic structural diagram of an embodiment of a multifunctional gas self-closing valve according to the present invention, wherein the self-closing valve is in an under-pressure closing state;
fig. 6 is a schematic structural diagram of an embodiment of the multifunctional gas self-closing valve of the present invention in an overpressure closing state.
In the drawings: 1. a self-closing valve 11, a self-closing valve body; 12. a valve core; 13. a push rod; 14. a magnetic member; 15. a valve stem; 16. a membrane; 17. a self-closing valve cover; 18. a top cover; 111. an inlet end of the self-closing valve; 112. the outlet end of the self-closing valve; 2. a shut-off valve; 21. cutting off the valve body; 22. cutting off the valve cover; 23. a sphere; 24. cutting off the valve rod; 25. a handle; 26. cutting off the assembly; 261. a cutting frame 262, a cutting core; 263. an elastic member; 264. Cutting off the sleeve; 265. a gasket; 266. a retainer ring; 3. and (5) sealing rings.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments are specifically illustrated with reference to fig. 1 to 6.
The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The multifunctional gas self-closing valve comprises a self-closing valve and a stop valve which are communicated with each other.
The self-closing valve 1 comprises a self-closing valve body 11 and a self-closing valve fluid channel penetrating through the self-closing valve body 11, wherein the two ends of the self-closing valve body 11 are respectively provided with a self-closing valve inlet end 111 and a self-closing valve outlet end 112 which are communicated with the self-closing valve fluid channel, one side of the self-closing valve body 11 is fixedly connected with a self-closing valve cover 17, the self-closing valve cover 17 is used for sealing the self-closing valve body 11 and installing a valve rod 15, the self-closing valve cover 17 is provided with a slidable valve rod 15 in a penetrating way, in addition, a slidable valve core 12 is arranged in the self-closing valve fluid channel, when the self-closing valve fluid channel is conducted and the side wall of the valve core 12 is attached to the lug boss in the self-closing valve fluid channel, the self-closing valve fluid passage is closed, the side wall of the valve core 12 is provided with a push rod 13 which can move along the radial direction of the valve core 12, the movement and opening/closing of the valve body 12 are controlled by the vertical movement of the push rod 13, and the push rod 13 can be brought into contact with or separated from the end portion of the valve stem 15 located in the self-closing valve body 11.
The cut-off valve 2 is arranged at the outlet end 112 of the self-closing valve and comprises a cut-off valve body 21 and a cut-off valve fluid channel penetrating through the cut-off valve body 21, the two ends of the cut-off valve body 21 are respectively provided with a cut-off valve inlet end and a cut-off valve outlet end which are communicated with the cut-off valve fluid channel, wherein the inlet end of the cut-off valve is communicated with the outlet end 112 of the self-closing valve, a rotatable ball body 23 is also arranged in the cut-off valve body 21, the ball body 23 is provided with a through hole, the shut-off valve fluid passage can be opened and closed by manually controlling the orientation of the through hole in the shut-off valve fluid passage by controlling the rotation of the ball 23, and a shut-off member 26 is provided in the shut-off valve fluid passage, the shut-off member 26 being capable of slidably shutting off the shut-off valve fluid passage in the longitudinal direction thereof, in the case where the shutoff valve fluid passage is open, the shutoff valve fluid passage is blocked when the air flow in the shutoff valve fluid passage overflows. Specifically, the shut-off valve body 21 has a shut-off valve cover 22 connected to one side thereof, the shut-off valve cover 22 and the interior of the shut-off valve body 21 together form a shut-off valve fluid passage, and a shut-off assembly 26 is provided in the shut-off valve fluid passage of the shut-off valve cover 22. The stop valve 2 is installed at the outlet end of the self-closing valve 1, when the gas is cut off due to overflowing, the self-closing valve 1 is not closed, only the stop valve 2 is cut off, and therefore the stop valve can help workers judge whether the pipeline cut-off reason is overpressure or underpressure or overflowing, and can assist the workers in judging problems. The stop valve 2 is installed at the air outlet end of the self-closing valve 1, and if the rubber tube falls off, the installation mode is more sensitive in response than the stop valve installed at the air inlet end.
In a preferred embodiment, as shown in fig. 1 and 2, the valve further includes a cut-off valve stem 24, one end of the cut-off valve stem 24 penetrates through the cut-off valve body 21 and is connected to the ball 23, the cut-off valve stem 24 is rotatable in the axial direction thereof, and a handle 25 is fixedly attached to the other end of the cut-off valve stem 24. A worker can rotate the cut-off valve rod 24 by rotating the handle 25, so that the ball 23 rotates in the cut-off valve body 21, and when the through hole of the ball 23 is communicated with the cut-off valve fluid channel, the cut-off valve fluid channel is communicated; the shut-off valve fluid passage is interrupted when the through-going bore of the ball 23 is blocked from the shut-off valve fluid passage.
In a preferred embodiment, as shown in fig. 1 and 2, the self-closing valve further includes a top cover 18, the top cover 18 is disposed on a side of the self-closing valve cover 17 away from the self-closing valve body 11, the top cover 18 is connected to one end of the valve rod 15, the top cover 18 is configured to cover the self-closing valve cover 17, a closed cavity is formed between the top cover 18 and the self-closing valve cover 17, and an air pressure value in the cavity is subsequently used for comparing with an air pressure value in the self-closing valve body 11, so that up-and-down movement of the middle portion of the diaphragm 16 is achieved, movement of the valve rod 15 is further driven, and automatic closing of the self-closing.
In a preferred embodiment, as shown in fig. 1, the self-closing valve outlet end 112 is provided with a first assembling step, the stop valve inlet end is provided with a second assembling step, the first assembling step is matched with the second assembling step, a sealing ring 3 is arranged between the first assembling step and the second assembling step, the self-closing valve 1 and the stop valve 2 are in sealing connection through the mutually-embedded matching of the first assembling step and the second assembling step, and gas is prevented from leaking from an assembling gap between the self-closing valve 1 and the stop valve 2.
In a preferred embodiment, as shown in fig. 2 and 3, the cutting assembly 26 includes a cutting sleeve 264, a cutting frame 261, a cutting core 262 and an elastic member 263, the cutting sleeve 264 is disposed in the fluid passage of the cut-off valve, the cutting core 262 is slidably disposed in the cutting sleeve 264 along the length direction thereof, the cutting core 262 is connected to one end of the cutting frame 261, the cutting frame 261 is used for guiding the movement of the cutting core 262, an elastic member 263 is sleeved outside the cutting core 262, a gap for the gas to flow through is left between the cutting core 262 and the cutting sleeve 264 when the elastic member 263 is in a normal length, when the gas in the fluid passage of the cut-off valve flows through, the pressure applied to the cutting core 262 by the gas is greater than the elastic force of the elastic member 263, so that the relative movement between the cutting core 262 and the cutting sleeve 264 is generated, and the cutting core 262 blocks the fluid passage of the cut-off valve, thereby.
In a preferred embodiment, as shown in fig. 2 and 3, a gasket 265 is sleeved on the outer side of the cutting sleeve 264 to ensure the sealing performance between the cutting sleeve 264 and the fluid passage of the shut-off valve, so as to prevent gas in the shut-off valve body 21 from leaking out from a gap between the inner wall of the shut-off valve 2 and the cutting sleeve 264 when the cutting assembly 26 blocks the fluid passage of the shut-off valve, and a retainer 266 is sleeved on one end of the cutting frame 261 close to the cutting core 262 to ensure the connection stability and the sealing performance between the cutting core 262 and the cutting frame 261 and prevent the cutting frame 261 from loosening.
In a preferred embodiment, as shown in fig. 1, a movable diaphragm 16 is arranged at the end of the valve stem 15 located in the self-closing valve body 11, the diaphragm 16 can slide along the length direction of the valve stem 15, i.e. the diaphragm 16 can bulge upwards or dent downwards under the action of gas pressure, the valve stem 15 is driven to move up and down by the up-and-down movement of the middle part of the diaphragm 16, the edge of the diaphragm 16 is connected with the self-closing valve body 11, and the edge of the diaphragm 16 is fixed.
In a preferred embodiment, as shown in fig. 4, 5, and 6, the longitudinal section of the push rod 13 is "T" shaped, the magnetic component 14 is sleeved outside the push rod 13, the middle of the specific magnetic component 14 is provided with an installation hole, the lower end of the push rod 13 is inserted into the installation hole, the valve rod 15 is made of a material capable of generating magnetic attraction with the magnetic component 14, generally, a material such as iron, cobalt, nickel, etc., the magnetic component 14 can be attracted with the valve rod 15, that is, magnetic attraction is generated between the magnetic component 14 and the valve rod 15, when the self-closing valve 1 normally operates, specifically referring to fig. 4, the magnetic attraction between the magnetic component 14 and the valve rod 15 keeps balanced with the pressure of the gas in the self-closing valve 1 on the diaphragm 16; when overpressure exists in the self-closing valve 1, specifically referring to fig. 6, the pressure of gas in the self-closing valve 1 on a diaphragm 16 is too large and is larger than the sum of magnetic attraction between a magnetic component 14 and a valve rod 15 and the gravity of each component, a push rod 13 is separated from the valve rod 15, the push rod 13 falls freely under the action of gravity and contacts with a valve core 12, so that the valve core 12 moves rightwards, and a fluid channel of the self-closing valve is closed; when the internal pressure of the self-closing valve 1 is under-pressure, specifically referring to fig. 5, the pressure of the gas in the self-closing valve 1 on the diaphragm 16 is too small and is smaller than the sum of the magnetic attraction between the magnetic component 14 and the valve rod 15 and the gravity of each component, so that the push rod 13 moves downwards to be in contact with the valve core 12, the valve core 12 moves rightwards to close the fluid channel of the self-closing valve.
Specifically, one end of the push rod 13 close to the valve core 12 is in a wedge shape, a clamping groove is formed in the side wall of the valve core 12 and is matched with the wedge-shaped end portion of the push rod 13, in addition, one end of the valve core 12 in the length direction is provided with a valve core elastic component, when the push rod 13 is separated from the valve core 12, the valve core 12 moves leftwards under the action of the valve core elastic component, so that a gap between the valve core 12 and the self-closing valve body 11 is reserved, and the self-closing valve 1 is opened; when the push rod 13 and the valve core 12 are clamped, the valve core 12 moves rightwards against the action of the elastic component, so that a gap between the valve core 12 and the self-closing valve body 11 is closed, and the self-closing valve 1 is closed.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.
Claims (8)
1. A multifunctional gas self-closing valve is characterized by comprising:
the self-closing valve comprises a self-closing valve body and a self-closing valve fluid channel penetrating through the self-closing valve body, wherein the two ends of the self-closing valve body are respectively provided with a self-closing valve inlet end and a self-closing valve outlet end which are communicated with the self-closing valve fluid channel, one side of the self-closing valve body is fixedly connected with a self-closing valve cover, a slidable valve rod penetrates through the self-closing valve cover, in addition, a slidable valve core penetrates through the self-closing valve fluid channel, the side wall of the valve core is provided with a push rod capable of moving along the radial direction of the valve core, and the push rod can be contacted with or separated from the;
the trip valve, including cutting off the valve body and running through the trip valve fluid passage who cuts off the valve body, the both ends of cutting off the valve body be provided with respectively with trip valve entrance point, the trip valve exit end of trip valve fluid passage intercommunication, wherein the trip valve entrance point with the self-closing valve exit end is linked together, still be provided with rotatable spheroid in the trip valve body, just the through-hole that runs through is seted up to the spheroid, in addition be provided with in the trip valve fluid passage and cut off the subassembly, it can block along its length direction with sliding the trip valve fluid passage.
2. The multifunctional gas self-closing valve as claimed in claim 1, further comprising a cut-off valve rod, wherein one end of the cut-off valve rod penetrates through the cut-off valve body and is connected with the ball, the cut-off valve rod can rotate along the axial direction of the cut-off valve rod, and a handle is fixedly arranged at the other end of the cut-off valve rod.
3. The multifunctional gas self-closing valve as claimed in claim 1, further comprising a top cover, wherein the top cover is arranged on one side of the self-closing valve cover facing away from the self-closing valve body, and the top cover is connected with one end of the valve rod.
4. The multifunctional gas self-closing valve according to claim 1, wherein an assembly step I is arranged at the outlet end of the self-closing valve, an assembly step II is arranged at the inlet end of the cut-off valve, the assembly step I is matched with the assembly step II, and a sealing ring is arranged between the assembly step I and the assembly step II.
5. The multifunctional gas self-closing valve according to claim 1, wherein the cutting assembly comprises a cutting sleeve, a cutting frame, a cutting core and an elastic member, the cutting sleeve is arranged in the fluid channel of the cutting valve, the cutting core is slidably arranged in the cutting sleeve along the length direction of the cutting core, one end of the cutting frame is connected with the cutting core, and the elastic member is sleeved outside the cutting core.
6. The multifunctional gas self-closing valve as claimed in claim 5, wherein a gasket is sleeved on the outer side of the cutting sleeve, and a retainer ring is sleeved on one end of the cutting frame close to the cutting core.
7. The multifunctional gas self-closing valve as claimed in claim 1, wherein the end of the valve stem inside the self-closing valve body is provided with a movable diaphragm, the diaphragm can slide along the length direction of the valve stem, and the edge of the diaphragm is connected with the self-closing valve body.
8. The multifunctional gas self-closing valve according to claim 7, wherein the longitudinal section of the push rod is T-shaped, and a magnetic part is sleeved on the outer side of the push rod and can be attracted with the valve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022569919.6U CN213541426U (en) | 2020-11-09 | 2020-11-09 | Multifunctional gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022569919.6U CN213541426U (en) | 2020-11-09 | 2020-11-09 | Multifunctional gas self-closing valve |
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| Publication Number | Publication Date |
|---|---|
| CN213541426U true CN213541426U (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022569919.6U Active CN213541426U (en) | 2020-11-09 | 2020-11-09 | Multifunctional gas self-closing valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483130A (en) * | 2021-07-09 | 2021-10-08 | 西安东新石油设备厂有限公司 | Multifunctional pipeline gas self-closing valve and self-closing method thereof |
| CN113932050A (en) * | 2021-11-01 | 2022-01-14 | 浙江博民机电股份有限公司 | Gas self-closing valve |
-
2020
- 2020-11-09 CN CN202022569919.6U patent/CN213541426U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483130A (en) * | 2021-07-09 | 2021-10-08 | 西安东新石油设备厂有限公司 | Multifunctional pipeline gas self-closing valve and self-closing method thereof |
| CN113483130B (en) * | 2021-07-09 | 2023-08-04 | 西安东新石油设备厂有限公司 | Multifunctional pipeline gas self-closing valve and self-closing method thereof |
| CN113932050A (en) * | 2021-11-01 | 2022-01-14 | 浙江博民机电股份有限公司 | Gas self-closing valve |
| CN113932050B (en) * | 2021-11-01 | 2024-01-12 | 浙江博民机电股份有限公司 | Gas self-closing valve |
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