CN220566658U - Limiting protection mechanism for gas self-closing valve - Google Patents
Limiting protection mechanism for gas self-closing valve Download PDFInfo
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- CN220566658U CN220566658U CN202322228633.5U CN202322228633U CN220566658U CN 220566658 U CN220566658 U CN 220566658U CN 202322228633 U CN202322228633 U CN 202322228633U CN 220566658 U CN220566658 U CN 220566658U
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- fixedly connected
- valve body
- rod
- main valve
- supporting plate
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- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 238000012806 monitoring device Methods 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims description 31
- 238000000576 coating method Methods 0.000 claims description 31
- 238000001179 sorption measurement Methods 0.000 claims description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 28
- 229910052742 iron Inorganic materials 0.000 claims description 14
- 238000009423 ventilation Methods 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a limit protection mechanism of a gas self-closing valve, which relates to the technical field of gas self-closing valves and comprises a main valve body, wherein a fixed seat is fixedly connected to the bottom end of the main valve body, an air inlet pipeline and an air outlet pipeline are respectively and fixedly connected to the two sides of the main valve body, an air pressure monitoring device is fixedly connected to the inside of the air inlet pipeline, an air vent groove is formed in the main valve body, the air inlet pipeline and the air outlet pipeline are communicated with the air vent groove, a self-closing mechanism is movably connected to the upper side of the main valve body, a valve rod is fixedly connected to the top end of the self-closing mechanism, and a limit mechanism is movably connected to the outer side of the valve rod. According to the utility model, through the limiting mechanism, when the valve rod moves downwards, the limiting spring supports the limiting cam, so that the limiting cam is pushed to rotate, the limiting cam is just clamped at the inner side of the limiting groove, the valve rod is fixedly limited, the phenomenon that the valve rod moves when the air pressure is unstable is prevented, and gas leakage is avoided.
Description
Technical Field
The utility model relates to the technical field of gas self-closing valves, in particular to a limiting protection mechanism of a gas self-closing valve.
Background
The gas becomes an indispensable dependence in people's life, and when bringing convenience for people's life, there are some potential safety hazards, because of reasons such as superpressure, under-pressure, overflow of gas influence people's life and property safety constantly, along with the development of informatization and thing networking, a gas self-closing valve that can connect or be online with intelligent gas table with the alarm is urgently needed. The self-closing valve for pipeline gas 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 can be automatically closed and opened manually without using electricity or other external power.
When the existing gas self-closing valve is used, because the valve rod of the self-closing valve is not provided with a corresponding limiting device, when the gas pressure of the valve rod in a valve body channel is unstable, the valve rod is easy to move repeatedly, the problem of gas leakage can occur, and the use is inconvenient. Therefore, we provide a limit protection mechanism for a gas self-closing valve to solve the above problems.
Disclosure of Invention
Technical problem to be solved
The utility model aims to make up the defects of the prior art and provides a limiting and protecting mechanism for a gas self-closing valve.
Technical proposal
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a spacing protection mechanism of gas self-closing valve, includes the main valve body, the bottom fixedly connected with fixing base of the main valve body, the both sides of the main valve body are fixedly connected with admission line and the pipeline of giving vent to anger respectively, and the inside fixedly connected with atmospheric pressure monitoring devices of admission line, the spread groove has been seted up to the inside of the main valve body, and admission line and the pipeline of giving vent to anger are linked together with the spread groove, the upside swing joint of the main valve body has self-closing mechanism, the top fixedly connected with valve rod of self-closing mechanism, the outside swing joint of valve rod has stop gear.
Above-mentioned, stop gear includes backup pad one, backup pad two, catch bar, spacing spring and limit cam, the catch bar respectively swing joint in backup pad one and backup pad two's inside, limit cam passes through pivot swing joint in backup pad one's inside, the outside of catch bar is located to the limit spring cover, and catch bar swing joint in limit cam's downside.
The first support plate and the second support plate are fixedly connected to the outer side of the main valve body, the first support plate is located on the upper side of the second support plate, one end of the limiting spring is fixedly connected to the inner side of the first support plate, the upper side of the pushing rod is fixedly connected with a lantern ring, and the other end of the limiting spring is fixedly connected to the bottom end of the lantern ring.
Above-mentioned, the upside of valve rod is provided with the spacing groove, the limit cam is laminated mutually with the outer wall of valve rod, and the limit cam is located the downside of spacing groove.
Above-mentioned, self-closing mechanism includes involucra, first magnet, second magnet, control rod, fixed iron sheet and movable loop bar that adsorbs, first magnet fixed connection is in the inboard of involucra, fixed iron sheet fixed connection is in the top of control rod, and the control rod passes through fixed iron sheet and first magnet swing joint that adsorbs, second magnet fixed connection is in the top of movable loop bar.
The valve rod is characterized in that the coating is fixedly connected to the inner side of the main valve body, the bottom end of the valve rod is fixedly connected to the upper side of the coating, the control rod corresponds to the first adsorption magnet and the second adsorption magnet respectively, and the second adsorption magnet is located at the lower side of the ventilation groove.
Above-mentioned, the top fixedly connected with dead lever of fixing base, and the outside cover of dead lever is equipped with connecting spring, connecting spring's one end fixed connection is in the top of fixing base, and connecting spring's the other end fixed connection is in the inboard of movable loop bar.
The beneficial effects are that:
compared with the prior art, the limit protection mechanism for the gas self-closing valve has the following beneficial effects:
1. according to the utility model, when the valve rod moves downwards, the limiting cam is supported under the pressure of the limiting spring, so that the limiting cam is pushed to rotate, the limiting cam is just clamped at the inner side of the limiting groove, the valve rod is fixed and limited, the valve rod is prevented from moving when the air pressure is unstable, and gas leakage is avoided.
2. According to the self-closing mechanism, when the air pressure is too low, the expansion degree of the coating is reduced, the coating is influenced by the pressure to push the control rod to descend, the movable sleeve rod adsorbs the control rod by the second adsorption magnet, so that the vent groove is closed, when the air pressure in the main valve body is too high, the expansion degree of the coating is increased, the pressure of the coating is greater than the suction force between the first adsorption magnet and the fixed iron sheet, the control rod is separated from the coating, and the control rod is adsorbed by the second adsorption magnet to close the vent groove, so that the self-closing valve is convenient to close rapidly under the condition of different air pressures.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic view of a partial cross-sectional structure of the present utility model;
FIG. 3 is a schematic cross-sectional bottom view of the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.
In the figure: 1. a main valve body; 2. a fixing seat; 3. an air intake duct; 4. an air outlet pipe; 5. an air pressure monitoring device; 6. a vent groove; 7. a limiting mechanism; 701. a first supporting plate; 702. a second supporting plate; 703. a push rod; 704. a limit spring; 705. a limit cam; 8. a valve stem; 9. a self-closing mechanism; 901. a coating film; 902. a first attracting magnet; 903. a second attracting magnet; 904. a control lever; 905. fixing the iron sheet; 906. a movable loop bar; 10. a collar; 11. a limit groove; 12. a fixed rod; 13. and a connecting spring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-4, the present utility model provides a technical solution: the utility model provides a spacing protection mechanism of gas self-closing valve, including main valve body 1, the bottom fixedly connected with fixing base 2 of main valve body 1, the both sides of main valve body 1 are fixedly connected with admission line 3 respectively and give vent to anger pipeline 4, and the inside fixedly connected with air pressure monitoring device 5 of admission line 3, ventilation slot 6 has been seted up to the inside of main valve body 1, and admission line 3 and give vent to anger pipeline 4 are linked together with ventilation slot 6, the upside swing joint of main valve body 1 has self-closing mechanism 9, the top fixedly connected with valve rod 8 of self-closing mechanism 9, the outside swing joint of valve rod 8 has stop gear 7.
When the air pressure is too low, the expansion degree of the coating 901 is reduced, the coating 901 is influenced by the pressure to push the control rod 904 to descend, the movable sleeve rod 906 adsorbs the control rod 904 by the second adsorption magnet 903, so that the vent groove 6 is closed, when the air pressure in the main valve body 1 is too high, the expansion degree of the coating 901 is increased, the pressure of the coating 901 is greater than the suction force between the first adsorption magnet 902 and the fixed iron sheet 905, the control rod 904 is separated from the coating 901, the control rod 904 is adsorbed by the second adsorption magnet 903 to close the vent groove 6, the self-closing valve is conveniently and rapidly closed under the condition of different air pressures, when the coating 901 contracts to drive the valve rod 8 to move downwards, the limit cam 705 is supported under the pressure of the limit spring 704, the limit cam 705 is pushed to rotate, the limit cam 705 is just clamped on the inner side of the limit groove 11, the valve rod 8 is fixed and the phenomenon that the valve rod 8 moves when the air pressure is unstable is prevented, and gas leakage is avoided.
As shown in fig. 1, 2 and 4, the limiting mechanism 7 comprises a first supporting plate 701, a second supporting plate 702, a pushing rod 703, a limiting spring 704 and a limiting cam 705, wherein the pushing rod 703 is movably connected to the inside of the first supporting plate 701 and the second supporting plate 702 respectively, the limiting cam 705 is movably connected to the inside of the first supporting plate 701 through a rotating shaft, the limiting spring 704 is sleeved on the outer side of the pushing rod 703, and the pushing rod 703 is movably connected to the lower side of the limiting cam 705; the first support plate 701 and the second support plate 702 are fixedly connected to the outer side of the main valve body 1, the first support plate 701 is positioned on the upper side of the second support plate 702, one end of the limiting spring 704 is fixedly connected to the inner side of the first support plate 701, the upper side of the push rod 703 is fixedly connected with the lantern ring 10, and the other end of the limiting spring 704 is fixedly connected to the bottom end of the lantern ring 10; the upper side of valve rod 8 is provided with spacing groove 11, and limit cam 705 is laminated with the outer wall of valve rod 8 mutually, and limit cam 705 is located the downside of spacing groove 11.
When the valve rod 8 moves downwards, the limiting cam 705 is supported under the pressure of the limiting spring 704, and then the limiting cam 705 is pushed to rotate, so that the limiting cam 705 is just clamped on the inner side of the limiting groove 11, the valve rod 8 is fixed and limited, the valve rod 8 is prevented from moving when the air pressure is unstable, and gas leakage is avoided.
As shown in fig. 2 and 3, the self-closing mechanism 9 includes a coating 901, a first adsorption magnet 902, a second adsorption magnet 903, a control lever 904, a fixed iron piece 905 and a movable sleeve 906, the first adsorption magnet 902 is fixedly connected to the inner side of the coating 901, the fixed iron piece 905 is fixedly connected to the top end of the control lever 904, the control lever 904 is movably connected with the first adsorption magnet 902 through the fixed iron piece 905, and the second adsorption magnet 903 is fixedly connected to the top end of the movable sleeve 906; the coating 901 is fixedly connected to the inner side of the main valve body 1, the bottom end of the valve rod 8 is fixedly connected to the upper side of the coating 901, the control rod 904 corresponds to the first adsorption magnet 902 and the second adsorption magnet 903 respectively, and the second adsorption magnet 903 is positioned at the lower side of the ventilation groove 6; the top fixedly connected with dead lever 12 of fixing base 2, and the outside cover of dead lever 12 is equipped with connecting spring 13, and connecting spring 13's one end fixedly connected to fixing base 2's top, and connecting spring 13's the other end fixedly connected to movable loop bar 906's inboard.
When the air pressure is too low, the expansion degree of the coating 901 is reduced, the coating 901 is influenced by the pressure to push the control rod 904 to descend, so that the movable sleeve rod 906 adsorbs the control rod 904 by the second adsorption magnet 903, and the vent groove 6 is closed, when the air pressure in the main valve body 1 is too high, the expansion degree of the coating 901 is increased, the pressure of the coating 901 is larger than the suction force between the first adsorption magnet 902 and the fixed iron sheet 905, the control rod 904 is separated from the coating 901, and the control rod 904 is adsorbed by the second adsorption magnet 903 to close the vent groove 6, so that the self-closing valve is conveniently and rapidly closed under the condition of different air pressures.
Working principle: when the air pressure is too low, the expansion degree of the coating 901 is reduced, the coating 901 pushes the control rod 904 to descend under the influence of pressure, the movable sleeve rod 906 adsorbs the control rod 904 by the second adsorption magnet 903, so that the vent groove 6 is closed, when the air pressure in the main valve body 1 is too high, the expansion degree of the coating 901 is increased, the pressure of the coating 901 is larger than the suction force between the first adsorption magnet 902 and the fixed iron piece 905, the control rod 904 is separated from the coating 901, the control rod 904 is adsorbed by the second adsorption magnet 903 to close the vent groove 6, when the coating 901 contracts to drive the valve rod 8 to move downwards, the pressure of the limit spring 704 supports the limit cam 705, and then the limit cam 705 is pushed to rotate, so that the limit cam 705 is just clamped at the inner side of the limit groove 11, the valve rod 8 is fixedly limited, and the phenomenon that the valve rod 8 moves when the air pressure is unstable is prevented.
It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "fixedly attached," "mounted," "connected," and "coupled" are to be construed broadly, e.g., as a fixed connection, as a removable connection, or as an integral connection; "coupled" may be either mechanical or electrical; the "connection" may be direct, indirect via an intermediary, or communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a spacing protection mechanism of gas self-closing valve, includes main valve body (1), its characterized in that: the utility model discloses a main valve body, including main valve body (1), fixing base (2) are connected with in bottom fixedly, the both sides of main valve body (1) are fixedly connected with admission line (3) respectively and are given vent to anger pipeline (4), and the inside fixedly connected with atmospheric pressure monitoring devices (5) of admission line (3), ventilation slot (6) have been seted up to the inside of main valve body (1), and admission line (3) and give vent to anger pipeline (4) and ventilation slot (6) are linked together, the upside swing joint of main valve body (1) has self-closing mechanism (9), the top fixedly connected with valve rod (8) of self-closing mechanism (9), the outside swing joint of valve rod (8) has stop gear (7).
2. The gas self-closing valve limit protection mechanism according to claim 1, wherein: the limiting mechanism (7) comprises a first supporting plate (701), a second supporting plate (702), a pushing rod (703), a limiting spring (704) and a limiting cam (705), wherein the pushing rod (703) is movably connected to the first supporting plate (701) and the second supporting plate (702) respectively, the limiting cam (705) is movably connected to the first supporting plate (701) through a rotating shaft, the limiting spring (704) is sleeved on the outer side of the pushing rod (703), and the pushing rod (703) is movably connected to the lower side of the limiting cam (705).
3. The gas self-closing valve limit protection mechanism according to claim 2, wherein: the main valve comprises a main valve body (1), a first supporting plate (701) and a second supporting plate (702), wherein the first supporting plate (701) and the second supporting plate (702) are fixedly connected to the outer side of the main valve body (1), the first supporting plate (701) is located on the upper side of the second supporting plate (702), one end of a limiting spring (704) is fixedly connected to the inner side of the first supporting plate (701), a lantern ring (10) is fixedly connected to the upper side of a pushing rod (703), and the other end of the limiting spring (704) is fixedly connected to the bottom end of the lantern ring (10).
4. The gas self-closing valve limit protection mechanism according to claim 2, wherein: the upper side of valve rod (8) is provided with spacing groove (11), limit cam (705) laminating mutually with the outer wall of valve rod (8), and limit cam (705) are located the downside of spacing groove (11).
5. The gas self-closing valve limit protection mechanism according to claim 1, wherein: the self-closing mechanism (9) comprises a coating film (901), a first adsorption magnet (902), a second adsorption magnet (903), a control rod (904), a fixed iron sheet (905) and a movable sleeve rod (906), wherein the first adsorption magnet (902) is fixedly connected to the inner side of the coating film (901), the fixed iron sheet (905) is fixedly connected to the top end of the control rod (904), the control rod (904) is movably connected with the first adsorption magnet (902) through the fixed iron sheet (905), and the second adsorption magnet (903) is fixedly connected to the top end of the movable sleeve rod (906).
6. The gas self-closing valve limit protection mechanism according to claim 5, wherein: the diaphragm (901) is fixedly connected to the inner side of the main valve body (1), the bottom end of the valve rod (8) is fixedly connected to the upper side of the diaphragm (901), the control rod (904) corresponds to the first adsorption magnet (902) and the second adsorption magnet (903) respectively, and the second adsorption magnet (903) is located at the lower side of the ventilation groove (6).
7. The gas self-closing valve limit protection mechanism according to claim 5, wherein: the top fixedly connected with dead lever (12) of fixing base (2), and the outside cover of dead lever (12) is equipped with connecting spring (13), the one end fixed connection of connecting spring (13) is in the top of fixing base (2), and the other end fixed connection of connecting spring (13) is in the inboard of movable loop bar (906).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322228633.5U CN220566658U (en) | 2023-08-18 | 2023-08-18 | Limiting protection mechanism for gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322228633.5U CN220566658U (en) | 2023-08-18 | 2023-08-18 | Limiting protection mechanism for gas self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220566658U true CN220566658U (en) | 2024-03-08 |
Family
ID=90101579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322228633.5U Active CN220566658U (en) | 2023-08-18 | 2023-08-18 | Limiting protection mechanism for gas self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220566658U (en) |
-
2023
- 2023-08-18 CN CN202322228633.5U patent/CN220566658U/en active Active
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