CN212251344U - Valve core structure for pipeline gas self-closing valve - Google Patents
Valve core structure for pipeline gas self-closing valve Download PDFInfo
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- CN212251344U CN212251344U CN202020848134.XU CN202020848134U CN212251344U CN 212251344 U CN212251344 U CN 212251344U CN 202020848134 U CN202020848134 U CN 202020848134U CN 212251344 U CN212251344 U CN 212251344U
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Abstract
The utility model discloses a valve core structure for a pipeline gas self-closing valve, which relates to the field of self-closing valves and comprises an upper valve rod, a valve core bracket, a diaphragm, a lower valve rod, a transverse valve rod, two sliding blocks, an upper suction piece, a lower suction piece, an upper permanent magnet, a lower permanent magnet, a valve body and a valve cover; under the action of three action forces of magnetic attraction acting force between the upper permanent magnet and the upper suction piece, magnetic attraction acting force between the lower permanent magnet and the lower suction piece and gravity of the lower valve rod, the valve can be automatically closed when phenomena such as overpressure, underpressure, overcurrent and the like occur in the valve, a gas passage is cut off, so that safety accidents are prevented, and the safety of using gas by a user is ensured.
Description
Technical Field
The utility model relates to a self-closing valve field especially relates to case structure for pipeline gas self-closing valve.
Background
When the outdoor pipeline is iced and blocked or is damaged, the gas pressure in the gas pipeline is too low to ignite a gas appliance due to the abnormal pressure regulator at the front end of the gas pipeline or the gas consumption peak period and other factors, safety accidents can be caused by the micro leakage of the gas; when the pressure regulator at the front end of the gas pipeline is abnormal or the pressure in the gas pipeline is too high due to factors such as pipeline pressure tests of a gas company and the like, safety accidents can also be caused; when the gas appliance is used for a long time, the rubber hose connected with the gas appliance is aged, broken and falls off, or the rubber hose is broken due to the gnawing of a mouse, and the like, so that the gas flow in the pipeline is abnormal, safety accidents are also caused by the leakage of the gas.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems and designing the valve core structure for the pipeline gas self-closing valve.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
pipeline gas is case structure for self-closing valve, including valve body and valve gap, still include:
a membrane; the upper end of the valve body is provided with a diaphragm mounting groove, and the diaphragm is mounted in the diaphragm mounting groove and tightly pressed on the valve body through a valve cover;
an upper valve stem; the lower end of the upper valve rod penetrates through the membrane and is positioned in the valve body;
a valve core support; the valve core bracket is fixedly arranged on the valve body, and a central hole is formed in the valve core bracket;
a lower valve stem; the lower valve rod penetrates through the central hole of the valve core bracket, and the lower valve rod and the valve core bracket can slide relatively;
a transverse valve stem; a sealing plug used for sealing the air inlet of the valve body is arranged at the first end of the transverse valve rod, the first end of the transverse valve rod penetrates through the air inlet of the valve body, and buckles are arranged on two sides of the second end of the transverse valve rod;
two sliding blocks; the lower end of the interior of the valve body and the valve core support are correspondingly provided with limiting grooves, the upper ends and the lower ends of the two sliding blocks are respectively slidably arranged in the two limiting grooves, the limiting grooves are used for limiting the movement of the sliding blocks in the gravity direction, the two sliding blocks are respectively provided with a buckle mounting groove, the transverse valve rod is fixedly connected with the two sliding blocks through a buckle and the buckle mounting grooves, the opposite side surfaces of the two sliding blocks are respectively provided with a transmission groove, and the height of one end, close to the transverse valve rod, of the transmission groove is lower than that of one end, far;
an upper suction sheet; the upper suction sheet is fixedly connected with the lower end of the upper valve rod;
an upper permanent magnet; the upper end of the lower valve rod is provided with a permanent magnet mounting hole, the upper permanent magnet is fixedly mounted in the permanent magnet mounting hole, and the upper permanent magnet has a magnetic force effect on the upper suction piece;
a lower suction sheet; the lower suction piece is fixedly connected with the lower end of the lower valve rod, one end of the lower suction piece is provided with a sliding block, and two ends of the sliding block are respectively slidably arranged in the two transmission grooves;
a lower permanent magnet; the lower permanent magnet is fixedly arranged at the lower end in the valve body and has a magnetic action on the lower suction piece.
Furthermore, square bosses are arranged at two ends of the side face, opposite to the other slide block, of one slide block, mounting square holes are formed in the corresponding position of the other slide block, the square bosses are in interference fit with the mounting square holes, and the sliding shaft on the lower suction piece is located between the gaps of the two slide blocks which are buckled together.
Furthermore, the central axes of the upper permanent magnet and the upper suction piece are on the same straight line, and the central axes of the lower permanent magnet, which has magnetic force action on the lower suction piece, are on the same straight line.
Furthermore, the upper valve rod, the valve core bracket, the lower valve rod, the transverse valve rod and the two sliding blocks are injection molding parts. The beneficial effects of the utility model reside in that: under the action of three action forces of magnetic attraction acting force between the upper permanent magnet and the upper suction piece, magnetic attraction acting force between the lower permanent magnet and the lower suction piece and gravity of the lower valve rod, the valve can be automatically closed when phenomena such as overpressure, underpressure, overcurrent and the like occur in the valve, a gas passage is cut off, so that safety accidents are prevented, and the safety of using gas by a user is ensured.
Drawings
FIG. 1 is a schematic view of the internal structure of the valve core structure for the pipeline gas self-closing valve of the present invention;
FIG. 2 is a schematic structural diagram of a valve core in the valve core structure for the pipeline gas self-closing valve of the present invention;
FIG. 3 is a schematic structural view of a lower valve rod in the valve core structure for the pipeline gas self-closing valve of the present invention;
FIG. 4 is a schematic structural diagram of a valve core support in the valve core structure for the pipeline gas self-closing valve of the present invention;
FIG. 5 is a schematic structural view of a valve body in the valve core structure for the pipeline gas self-closing valve of the present invention;
FIG. 6 is a schematic structural view of a lower suction piece in the valve core structure of the pipeline gas self-closing valve of the present invention;
FIG. 7 is a schematic structural view of a square mounting hole in the valve core structure of the pipeline gas self-closing valve of the present invention;
FIG. 8 is a schematic structural view of a square boss in the valve core structure of the pipeline gas self-closing valve of the present invention;
wherein corresponding reference numerals are:
1-lower valve rod, 2-upper permanent magnet, 3-lower permanent magnet, 4-sealing plug, 5-valve core support, 6-valve body, 8-upper valve rod, 9-upper suction piece, 10-membrane, 11-lower suction piece, 12-transverse valve rod, 13-sliding block, 1 a-permanent magnet mounting hole, 51-central hole, 52-limiting groove, 53-limiting boss, 54-screw via hole, 61-air outlet, 62-permanent magnet mounting seat, 63-valve core support mounting boss, 64-membrane mounting groove, 65-air inlet, 11 a-sliding block, 13 a-transmission groove, 13 b-mounting square hole, 13 c-buckle mounting groove and 13 d-square boss.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following describes in detail embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
pipeline gas is case structure for self-closing valve, including valve body 6 and valve gap, still include:
a membrane 10; the upper end of the valve body is provided with a membrane mounting groove 64, and the membrane 10 is mounted in the membrane mounting groove 64 and is tightly pressed on the valve body through a valve cover;
an upper valve stem 8; the lower end of the upper valve rod 8 penetrates through the diaphragm 10 and is positioned in the valve body;
a spool holder 5; the valve core bracket 5 is fixedly arranged on the valve body 6, and a central hole 51 is arranged on the valve core bracket 5;
a lower valve stem 1; the lower valve rod 1 passes through a central hole 51 of the valve core bracket 5, and the lower valve rod 1 and the valve core bracket 5 can slide relatively;
a lateral valve stem 12; a sealing plug 4 for sealing an air inlet 65 of the valve body 6 is arranged at the first end of the transverse valve rod 12, the first end of the transverse valve rod 12 penetrates through the air inlet 65 of the valve body, and two sides of the second end of the transverse valve rod 12 are provided with buckles;
two sliders 13; the lower end of the interior of the valve body is correspondingly provided with a limiting groove 52 on the valve core support 5, the upper ends and the lower ends of the two sliding blocks 13 are respectively slidably mounted in the two limiting grooves 52, the limiting grooves 52 are used for limiting the movement of the sliding blocks 13 in the gravity direction, the two sliding blocks 13 are respectively provided with a buckle mounting groove 13c, the transverse valve rod 12 is fixedly connected with the two sliding blocks 13 through the buckles and the buckle mounting grooves 13c, the opposite side surfaces of the two sliding blocks 13 are respectively provided with a transmission groove 13a, and the height of one end, close to the transverse valve rod 12, of the transmission groove 13a is lower than the height of one end, far away from;
an upper suction sheet 9; the upper suction sheet 9 is fixedly connected with the lower end of the upper valve rod 8 through a screw;
an upper permanent magnet 2; the upper end of the lower valve rod 1 is provided with a permanent magnet mounting hole 1a, the upper permanent magnet 2 is fixedly mounted in the permanent magnet mounting hole 1a through a screw, and the upper permanent magnet 2 has a magnetic force effect on the upper suction piece 9;
a lower suction sheet 11; the lower suction piece 11 is fixedly connected with the lower end of the lower valve rod 1 through a screw, one end of the lower suction piece 11 is provided with a sliding block 11a, and two ends of the sliding block 11a are respectively slidably arranged in the two transmission grooves 13 a;
a lower permanent magnet 3; the lower permanent magnet 3 is fixedly mounted on the permanent magnet mounting seat 62 at the lower end in the valve body 6 through a screw, and the lower permanent magnet 3 has a magnetic force effect on the lower suction piece 11.
Furthermore, two ends of the side face, opposite to the other slide block 13, of one slide block 13 are provided with square bosses 13d, the corresponding position of the other slide block 13 is provided with a mounting square hole 13b, the square bosses 13d are in interference fit with the mounting square holes 13b, and the sliding shaft on the lower suction piece 11 is located between the gaps of the two slide blocks 13 which are buckled together.
Further, the central axes of the upper permanent magnet 2 and the upper suction piece 9 are on the same straight line, and the central axes of the lower permanent magnet 3 having magnetic force action on the lower suction piece 11 are on the same straight line.
Further, the upper valve rod 8, the valve core bracket 5, the lower valve rod 1, the transverse valve rod 12 and the two sliding blocks 13 are all injection molded parts.
The utility model discloses the theory of operation of case structure for pipeline gas self-closing valve as follows:
when the valve is closed, under the action of the attraction force between the lower permanent magnet 3 and the lower suction piece 11, two ends of the sliding block 11a on the lower suction piece 11 respectively move towards the lower inclined surfaces of the two transmission grooves 13a, so that the two sliding blocks 13 move towards the valve closing direction, the two sliding blocks 13 drive the transverse valve rod 12 to move towards the valve closing direction, the sealing plug 4 is tightly pressed on the air inlet 65 of the valve body 6 to realize sealing, and the blocking of a gas passage when the valve is closed is realized;
when the valve is opened, the upper valve rod 8 is lifted, because the upper suction piece 9 and the upper permanent magnet 2 are in a suction state, the upper valve rod 8 drives the lower valve rod 1 to move upwards, the lower valve rod 1 drives the lower suction piece 11 to move upwards, and in the process that two ends of a sliding block 11a on the lower suction piece 11 respectively move towards upper inclined planes of two transmission grooves 13a, the sliding block 11a pushes the two sliding blocks 13 to move towards a valve opening direction, the two sliding blocks 13 drive the transverse valve rod 12 to move towards the valve opening direction, so that the sealing plug 4 is separated from the air inlet 65, the valve is opened, the upper valve rod 8 is continuously lifted, the lower suction piece 11 is continuously moved upwards under the drive of the upper valve rod 8, when the lower suction piece 11 is blocked by a limiting lug boss 53 on the valve core support 5, the lower suction piece 11 does not move upwards any more, the transverse valve rod 12 does not move towards the valve opening direction any more, the valve reaches the maximum opening degree and is in place, at this time, gas flows into, the whole gas passage is opened, and the valve core of the valve is in a balanced state under the action of upward gas pressure acting on the membrane 10, downward blocking force of the valve core bracket 5 to the lower suction piece 11, downward deformation resistance of the membrane 10, downward attraction of the lower permanent magnet 3 to the lower suction piece 11 and the gravity of the whole valve core;
when the pressure in the gas pipeline is too high, the gas pressure acting on the diaphragm 10 is increased, when the attraction force between the upper suction piece 9 and the upper permanent magnet 2 is not enough to overcome the gas pressure acting on the diaphragm 10, the upper suction piece 9 and the upper permanent magnet 2 are separated, at the moment, the lower valve rod 1 moves downwards under the action of the self gravity and the downward attraction force of the lower permanent magnet 3 on the lower suction piece 11, in the process that the two ends of the sliding block 11a on the lower suction piece 11 move towards the lower inclined surfaces of the two transmission grooves 13a respectively, the sliding block 11a pushes the two sliding blocks 13 to move towards the valve closing direction, the two sliding blocks 13 drive the transverse valve rod 12 to move towards the valve closing direction, the valve is closed, and therefore, the gas passage is blocked to realize overpressure self;
when the pressure in the gas pipeline is reduced, the gas pressure acting on the diaphragm 10 is reduced, the balance state of the valve core is damaged at the moment, the upper valve rod 8 and the lower valve rod 1 move downwards under the action of self gravity and the downward attraction force of the lower permanent magnet 3 on the lower suction piece 11, the two ends of the sliding block 11a on the lower suction piece 11 respectively move towards the lower inclined surfaces of the two transmission grooves 13a in the process of moving, the sliding block 11a pushes the two sliding blocks 13 to move towards the valve closing direction, the two sliding blocks 13 drive the transverse valve rod 12 to move towards the valve closing direction, and when the gas pressure is reduced to a certain degree, the valve is completely closed, so that a gas passage is blocked to realize the self-closing under pressure;
when the gas appliance is used for a long time, the rubber hose connected with the gas appliance is aged and broken and falls off, or the rubber hose is broken due to the gnawing of a mouse and the like, so that the gas leakage gas flow of a gas passage is increased, the gas pressure in the valve is rapidly reduced or even no gas pressure exists, at the moment, the two ends of the sliding block 11a on the lower suction piece 11 move downwards under the action of the self gravity of the upper valve rod 8 and the lower valve rod 1 and the downward attraction force of the lower permanent magnet 3 on the lower suction piece 11 respectively move towards the lower inclined surfaces of the two transmission grooves 13a, the sliding block 11a pushes the two sliding blocks 13 to move towards the valve closing direction, the two sliding blocks 13 drive the transverse valve rod 12 to move towards the valve closing direction, and the valve is closed, so.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (4)
1. Pipeline gas is case structure for self-closing valve, including valve body and valve gap, its characterized in that still includes:
a membrane; the upper end of the valve body is provided with a diaphragm mounting groove, and the diaphragm is mounted in the diaphragm mounting groove and tightly pressed on the valve body through a valve cover;
an upper valve stem; the lower end of the upper valve rod penetrates through the membrane and is positioned in the valve body;
a valve core support; the valve core bracket is fixedly arranged on the valve body, and a central hole is formed in the valve core bracket;
a lower valve stem; the lower valve rod penetrates through the central hole of the valve core bracket, and the lower valve rod and the valve core bracket can slide relatively;
a transverse valve stem; a sealing plug used for sealing the air inlet of the valve body is arranged at the first end of the transverse valve rod, the first end of the transverse valve rod penetrates through the air inlet of the valve body, and buckles are arranged on two sides of the second end of the transverse valve rod;
two sliding blocks; the lower end of the interior of the valve body and the valve core support are correspondingly provided with limiting grooves, the upper ends and the lower ends of the two sliding blocks are respectively slidably arranged in the two limiting grooves, the limiting grooves are used for limiting the movement of the sliding blocks in the gravity direction, the two sliding blocks are respectively provided with a buckle mounting groove, the transverse valve rod is fixedly connected with the two sliding blocks through a buckle and the buckle mounting grooves, the opposite side surfaces of the two sliding blocks are respectively provided with a transmission groove, and the height of one end, close to the transverse valve rod, of the transmission groove is lower than that of one end, far;
an upper suction sheet; the upper suction sheet is fixedly connected with the lower end of the upper valve rod;
an upper permanent magnet; the upper end of the lower valve rod is provided with a permanent magnet mounting hole, the upper permanent magnet is fixedly mounted in the permanent magnet mounting hole, and the upper permanent magnet has a magnetic force effect on the upper suction piece;
a lower suction sheet; the lower suction piece is fixedly connected with the lower end of the lower valve rod, one end of the lower suction piece is provided with a sliding block, and two ends of the sliding block are respectively slidably arranged in the two transmission grooves;
a lower permanent magnet; the lower permanent magnet is fixedly arranged at the lower end in the valve body and has a magnetic action on the lower suction piece.
2. The valve core structure for the pipeline gas self-closing valve according to claim 1, wherein square bosses are arranged at two ends of the side surface of one of the slide blocks opposite to the other slide block, square mounting holes are arranged at corresponding positions on the other slide block, the square bosses are in interference fit with the square mounting holes, and the sliding shaft on the lower suction piece is positioned between the gaps of the two slide blocks which are buckled together.
3. The valve core structure for the pipeline gas self-closing valve according to any one of claims 1 to 2, wherein the central axes of the upper permanent magnet and the upper suction piece are on the same straight line, and the central axes of the lower permanent magnet, which has a magnetic force effect on the lower suction piece, are on the same straight line.
4. The valve core structure for the pipeline gas self-closing valve according to any one of claims 1 to 2, wherein the upper valve rod, the valve core bracket, the lower valve rod, the transverse valve rod and the two sliding blocks are all injection molded parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020848134.XU CN212251344U (en) | 2020-05-20 | 2020-05-20 | Valve core structure for pipeline gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020848134.XU CN212251344U (en) | 2020-05-20 | 2020-05-20 | Valve core structure for pipeline gas self-closing valve |
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| Publication Number | Publication Date |
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| CN212251344U true CN212251344U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020848134.XU Active CN212251344U (en) | 2020-05-20 | 2020-05-20 | Valve core structure for pipeline gas self-closing valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352778A (en) * | 2021-12-15 | 2022-04-15 | 陕西欧迪亚实业有限公司 | Pipeline gas self-closing valve, control method and low-pressure gas system pipeline |
-
2020
- 2020-05-20 CN CN202020848134.XU patent/CN212251344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352778A (en) * | 2021-12-15 | 2022-04-15 | 陕西欧迪亚实业有限公司 | Pipeline gas self-closing valve, control method and low-pressure gas system pipeline |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230628 Address after: 618000 No. 19-12, building 21, phase I, Yinxin Wuzhou Plaza, No. 733, Section 2, Taishan South Road, Deyang City, Sichuan Province Patentee after: Sichuan Zhongke Zhicheng Technology Co.,Ltd. Address before: No.7, Keyuan South 1st Road, high tech Zone, Chengdu, Sichuan 610093 Patentee before: CHENGDU ZHICHENG TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |