CN214466249U

CN214466249U - Safety valve for natural gas pipeline

Info

Publication number: CN214466249U
Application number: CN202023176883.1U
Authority: CN
Inventors: 李玥
Original assignee: Inner Mongolia Hanshengyuan Technology Co ltd
Current assignee: Shanghai Zhonghu Valve Group Intelligent Equipment Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-10-22
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a safety valve for a natural gas pipeline, which comprises a valve body, wherein the valve body is provided with a rotatable valve core, and the upper end of the valve core is provided with a rotatable valve rod which extends out of the upper end of the valve body; the valve rod is of a cylindrical structure with an opening at the upper end, a sliding block is slidably arranged in the valve rod, and a rotatable driving rod is arranged at the upper end of the sliding block; a limiting block is arranged at the inner upper part of the valve rod, a limiting groove corresponding to the limiting block is arranged on the sliding block, and a notch corresponding to the driving rod is arranged at the upper end of the valve rod; the left end of the valve rod is rotatably provided with a cover plate for shielding the opening of the valve rod; wherein, when the slider is located the valve rod bottom, the actuating lever all is located the inside of valve rod, and the upper end of case is inlayed and is had the permanent magnet, and the apron is iron plate, and this neotype effect is: through the hidden characteristic of actuating lever and the sheltering from of apron, the child is behind seeing the valve door, so can't open the valve easily, to the incident that can effectively prevent child wantonly switch valve and cause.

Description

Safety valve for natural gas pipeline

Technical Field

The utility model relates to a safe type valve that natural gas line used belongs to ball valve technical field.

Background

Natural gas is one of the safer fuel gases, does not contain carbon monoxide, is lighter than air, is not easy to accumulate to form explosive gas, and has higher safety than other fuel gases, so that the natural gas is more and more applied to daily life of people.

At present, when a user uses natural gas, the natural gas in a pipeline is opened or cut off by controlling a valve, the existing natural gas valve has certain disadvantages when in use, when a family is not at home, a young child and a person are left alone, the valve has no safety protection measures, when a naughty child rotates open unintentionally, the natural gas can leak indoors, although the natural gas is not as toxic as carbon monoxide, and the natural gas is essentially harmless to a human body. However, if the natural gas is in a high concentration state and oxygen in the air is not enough to sustain life, people still die, and after all, the natural gas cannot be used for human breathing, so that the safety factor of the valve used by the current user is low, and safety accidents are easily caused.

Disclosure of Invention

An object of the utility model is to provide a safe type valve that natural gas line used has solved prior art, and the valve of installation does not have the safety protection measure on the natural gas line that the user used, and the easy child who is stubborn skin of being unscrewed leads to the problem that natural gas leaked.

The utility model adopts the technical scheme as follows: a safety valve for a natural gas pipeline comprises a valve body with a three-way structure, wherein a valve core which can rotate and is of a ball structure is installed at the central position of the valve body, a rotatable valve rod which extends out of the upper end of the valve body is fixed at the upper end of the valve core, the valve rod is of a cylinder structure with an open upper end, a slidable sliding block is installed inside the valve rod, a cylindrical driving rod which can rotate left and right is installed at the upper end of the sliding block, a limiting block is fixed at the inner upper part of the valve rod, a limiting groove corresponding to the limiting block is formed in the upper end face of the sliding block, a notch matched with the driving rod is formed in the upper right end of the valve rod, a cover plate used for shielding the opening of the valve rod is installed at the left end of the valve rod in a rotatable mode, after the limiting groove of the sliding block is matched with the limiting block, the driving rod can rotate to be in a horizontal state and can be clamped in the notch, and when the sliding block is positioned at the bottom of the valve rod, the actuating lever all is located the inside of valve rod, and the upper end of case is inlayed and is had the permanent magnet, and the apron is iron plate.

Preferably, the left end of the valve body is of an external thread structure, and the right end of the valve body is rotatably and movably sealed with a rotatable nut.

Furthermore, the right end of the valve body is provided with a rotatable nut through a sealing bearing, wherein the inner ring of the sealing bearing is fixedly connected with the right end of the valve body in a sealing manner, and the outer ring of the sealing bearing is fixedly connected with the left end of the nut in a sealing manner.

Further, the inside seal of nut is fixed with the sealing ring of elasticity material, and wherein, the interior jade of sealing ring flushes with the right-hand member inner wall of valve body, and the lateral wall and the valve body right-hand member laminating of sealing ring for improve the leakproofness that valve body and natural gas line are connected.

Preferably, the bottom of the notch is of a semicircular structure matched with the driving rod, and an elastic pad matched with the notch is fixed on the notch.

Preferably, a lower connecting plate is fixed to the upper left portion of the valve rod, an upper connecting plate is rotatably mounted on the lower connecting plate, and the upper connecting plate is fixedly connected with the cover plate.

Preferably, the quantity of stopper is four, and is the annular distribution, the stopper is connected with spacing groove interference fit for, after stopper and spacing groove interference fit are connected, the slider receives external force state down, can not take place to remove, has the positioning action to the slider.

Preferably, the upper end surface of the cover plate is provided with anti-skid grains, so that a user can push the cover plate to rotate conveniently.

Preferably, the upper end face of slider is fixed with the mounting panel of longitudinal symmetry, the lower part of actuating lever is fixed with the pivot of longitudinal symmetry, pivot and mounting panel pass through connecting bearing rotatable coupling.

Preferably, the upper end of the driving rod is provided with a blind hole, the blind hole is provided with an extension rod with an inverted L-shaped structure in a sliding mode, and the horizontal section of the extension rod is just positioned inside the notch after the sliding block is positioned at the lowest end of the valve core.

Furthermore, the upper end of actuating lever is inlayed and is fixed with the elastic ring, the elastic ring is connected with extension bar interference fit.

The beneficial effects of the utility model reside in that:

the utility model drives the valve rod to rotate by arranging the driving rod which can be hidden in the valve rod, only after the driving rod is pulled out of the valve core and matched with the notch, the driving rod can drive the valve rod to rotate, the valve rod drives the valve core rotating shaft to realize the opening and closing of the device, and simultaneously, because the cover plate is arranged on the valve rod, and when the cover plate shields the valve rod, the cover plate is adsorbed and fixed through the permanent magnet arranged on the valve rod, the hidden characteristic of the driving rod and the shielding of the cover plate ensure that a child sees the valve, because there is no obvious gripping object, and, moreover, a specific operation is required to drive the valve rod to rotate, so that the valve cannot be easily opened, even if a child touches the cover plate, the external force applied to the cover plate by the child is small because the cover plate is adsorbed by the permanent magnet, the cover plate cannot rotate, therefore, children cannot control the opening and closing of the valve, and safety accidents caused by the fact that the children switch the valve wantonly can be effectively prevented.

The utility model discloses a cooperation of spacing groove and stopper to and the cooperation of actuating lever and breach, make the actuating lever when applying the turning force to the valve rod, the valve rod can receive the turning force from the position of difference, make the actuating lever steadiness when driving the valve rod higher.

The utility model discloses a length of drive rod can be increased in the setting of extension bar for the user is light swift controls the valve.

The utility model discloses two of valve body adopt the design of inner thread structure and external thread structure to the kneck, are convenient for change the pipe fitting, and more reasonable when docking other pipe fittings saves the butt joint pipe fitting, practices thrift installation space, promotes the installation effectiveness.

Drawings

Fig. 1 is a schematic view of the novel three-dimensional structure.

Fig. 2 is a schematic view of the novel front view cross-section structure.

Fig. 3 is a schematic view of the novel front view cross-section structure.

Fig. 4 is a schematic partial structure diagram of a front view section when the driving rod drives the valve rod according to the present invention.

Fig. 5 is a schematic view of the novel three-dimensional partial structure.

In the figure: the valve comprises a valve body 1, an external thread structure 1-1, a nut 1-2, a sealing bearing 1-3, a sealing ring 1-4, a valve core 2, a valve rod 3, a notch 3-1, an elastic pad 3-2, a sliding block 4, a limiting groove 4-1, a driving rod 5, a blind hole 5-1, a limiting block 6, a cover plate 7, a permanent magnet 8, a lower connecting plate 9, an upper connecting plate 10, a pin shaft 11, a mounting plate 12, a rotating shaft 13, an extension rod 14 and an elastic ring 15.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings, which are only used for illustrating the technical solutions of the present invention and are not limited.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely 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, are not to be construed as limiting the present invention.

As shown in fig. 1-5, the safety valve for a natural gas pipeline includes a valve body 1 with a three-way structure, a valve core 2 which is rotatable and has a spherical structure is installed at a central position of the valve body 1, a valve rod 3 which extends out of an upper end of the valve body 1 and is rotatable is welded and fixed at an upper end of the valve core 2, the valve rod 3 has a cylindrical structure with an open upper end, and a slidable slider 4 is installed inside the valve rod 3, specifically: the inside of valve rod 3 cup joints with slider 4 and is connected, slider 4 upper end is installed and is rotated about and for columniform actuating lever 5, the interior upper portion welded fastening of valve rod 3 has stopper 6, and the up end of slider 4 is opened has the spacing groove 4-1 that corresponds with stopper 6, the upper right end of valve rod 3 is opened has the breach 3-1 with actuating lever 5 adaptation, the left end rotatable the installing of valve rod 3 is used for sheltering from the open-ended apron 7 of valve rod 3, and wherein, behind the spacing groove 4-1 of slider 4 and the cooperation of stopper 6, actuating lever 5 can rotate and be the horizontality and can the joint in breach 3-1, and when slider 4 was located valve rod 3 bottom, actuating lever 5 all was located the inside of valve rod 3, and the upper end of inlaying of case 2 is fixed with permanent magnet 8, and apron 7 is iron plate.

In this embodiment, the left end of the valve body 1 is an external thread structure 1-1, and the right end of the valve body 1 is rotatably and movably sealed with a rotatable nut 1-2.

The right end of the valve body 1 is provided with a rotatable nut 1-2 through a sealing bearing 1-3, wherein the inner ring of the sealing bearing 1-3 is fixedly connected with the right end of the valve body 1 in a sealing and welding manner, and the outer ring of the sealing bearing 1-3 is fixedly connected with the left end of the nut 1-2 in a sealing and welding manner.

The inner sealing glue of the nut 1-2 is fixedly provided with a sealing ring 1-4 made of elastic material, wherein the inner wall of the sealing ring 1-4 is flush with the inner wall of the right end of the valve body 1, and the side wall of the sealing ring 1-4 is attached to the right end of the valve body 1, so that the sealing property of the connection between the valve body 1 and a natural gas pipeline is improved.

In this embodiment, the bottom of the notch 3-1 is a semicircular structure adapted to the driving rod 5, and an elastic pad 3-2 adapted to the notch 3-1 is fixed to the notch 3-1 by gluing.

In this embodiment, the upper left portion of the valve rod 3 is fixedly welded with a lower connecting plate 9, the lower connecting plate 9 is rotatably mounted with an upper connecting plate 10 through a pin 11, and the upper connecting plate 10 is fixedly welded with the cover plate 7.

In this embodiment, the number of the limiting blocks 6 is four, and the limiting blocks 6 are distributed annularly, and the limiting blocks 6 are connected with the limiting grooves 4-1 in an interference fit manner, so that after the limiting blocks 6 are connected with the limiting grooves 4-1 in the interference fit manner, the sliding block 4 cannot move under the external force state, and has a positioning effect on the sliding block 4.

In this embodiment, the upper end surface of the cover plate 7 is provided with an anti-slip pattern (not shown in the figure) for facilitating the user to push the cover plate 7 to rotate.

In this embodiment, the upper end surface of the slider 4 is welded and fixed with a mounting plate 12 which is symmetrical in the front-back direction, the lower part of the driving rod 5 is welded and fixed with a rotating shaft 13 which is symmetrical in the front-back direction, and the rotating shaft 13 and the mounting plate 12 are rotatably connected through a connecting bearing (not shown in the figure).

In this embodiment, the upper end of the driving rod 5 is provided with a blind hole 5-1, the blind hole 5-1 is slidably mounted with an extension bar 14 having an inverted L-shaped structure, wherein the horizontal section of the extension bar 14 is just located inside the notch 3-1 after the slider 4 is located at the lowest end of the valve core 2.

Wherein, the upper end of actuating lever 5 is inlayed the adhesive and is fixed elastic ring 15, elastic ring 15 is connected with extension bar 14 interference fit.

The utility model discloses a theory of operation and application method:

when the natural gas pipeline connecting valve is used, the external thread structure 1-1 and the rotatable nut 1-2 of the valve body 1 are connected with a corresponding natural gas pipeline according to actual installation conditions.

When the valve is opened, a user pushes the cover plate 7 to rotate by fingers to be far away from the upper end of the valve rod 3, then pulls the horizontal part of the extension rod 14, when the extension rod 14 is pulled upwards, due to the pressing of the elastic ring 15, the extension rod 14 cannot slide with the driving rod 5, the extension rod 14 drives the driving rod 5 to move upwards, the driving rod 5 drives the sliding block 4 to slide upwards until the limiting groove 4-1 is matched with the limiting block 6, the driving rod 5 is rotated into the notch 3-1, then the driving rod 5 is horizontally rotated, due to the matching of the limiting groove 4-1 and the limiting block 6 and the matching of the driving rod 5 and the notch 3-1, the driving rod 5 drives the valve rod 3 to rotate when horizontally rotating, the valve rod 3 drives the valve core 2 to rotate, so as to realize the opening and closing of the valve, in addition, the user can draw the extension rod 14 out of a moving distance to lengthen the length of the driving rod 5, so that the driving rod 5 saves more labor when rotating, after the user uses up the natural gas and closes the valve, with actuating lever 5 and extension bar 14 remove to the inside of valve rod 3, rotate apron 7 to valve rod 3 upper end can, the operation is opposite with above-mentioned operation.

Although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes and modifications can be made in the embodiments described above, or equivalent changes and modifications can be made to some of the technical features of the embodiments described above, and any changes, equivalents, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A safety valve for a natural gas pipeline comprises a valve body with a three-way structure and is characterized in that; a rotatable valve core in a spherical structure is arranged in the center of the valve body, and a rotatable valve rod extending out of the upper end of the valve body is arranged at the upper end of the valve core;

the valve rod is of a cylindrical structure with an opening at the upper end, a sliding block capable of sliding is arranged inside the valve rod, and a cylindrical driving rod capable of rotating left and right is mounted at the upper end of the sliding block;

a limiting block is arranged at the inner upper part of the valve rod, a limiting groove corresponding to the limiting block is arranged on the upper end face of the sliding block, and a notch matched with the driving rod is arranged at the right upper end of the valve rod;

the left end of the valve rod is rotatably provided with a cover plate for shielding the opening of the valve rod;

wherein, the spacing groove of slider and stopper cooperation back, the actuating lever can rotate and be the horizontality and can the joint in the breach, and when the slider was located the valve rod bottom, the actuating lever all was located the inside of valve rod, and the upper end of case is inlayed and is had the permanent magnet, and the apron is iron plate.

2. The safety valve for a natural gas pipeline according to claim 1, wherein: the left end of the valve body is of an external thread structure, and the right end of the valve body is rotatably and movably sealed with a rotatable nut.

3. The safety valve for a natural gas pipeline according to claim 2, wherein: the right end of the valve body is provided with a rotatable nut through a sealing bearing, wherein the inner ring of the sealing bearing is fixedly connected with the right end of the valve body in a sealing way, and the outer ring of the sealing bearing is fixedly connected with the left end of the nut in a sealing way.

4. The safety valve for a natural gas pipeline according to claim 2, wherein: the inside seal of nut is fixed with the sealing ring of elasticity material, and wherein, the interior jade of sealing ring flushes with the right-hand member inner wall of valve body, and the lateral wall and the valve body right-hand member laminating of sealing ring.

5. The safety valve for a natural gas pipeline according to claim 1, wherein: the bottom of the notch is of a semicircular structure matched with the driving rod, and an elastic cushion matched with the notch is fixed on the notch.

6. The safety valve for a natural gas pipeline according to claim 1, wherein: the upper left portion of valve rod is fixed with the lower junction plate, the rotatable upper junction plate of installing of lower junction plate, upper junction plate and apron fixed connection.

7. The safety valve for a natural gas pipeline according to claim 1, wherein: the quantity of stopper is four, and is the annular distribution, the stopper is connected with spacing groove interference fit.

8. The safety valve for a natural gas pipeline according to claim 1, wherein: the upper end face of the cover plate is provided with anti-skid grains.

9. The safety valve for a natural gas pipeline according to claim 1, wherein: the up end of slider is fixed with the mounting panel of longitudinal symmetry, the lower part of actuating lever is fixed with the pivot of longitudinal symmetry, pivot and mounting panel pass through connecting bearing rotatable coupling.

10. The safety valve for a natural gas pipeline according to claim 1, wherein: the upper end of the driving rod is provided with a blind hole, the blind hole is provided with an extension rod with an inverted L-shaped structure in a sliding mode, the slider is located at the lowest end of the valve core, the horizontal section of the extension rod is just located inside the notch, the upper end of the driving rod is fixedly embedded with an elastic ring, and the elastic ring is connected with the extension rod in an interference fit mode.