CN217603868U

CN217603868U - Valve for gas storage tank

Info

Publication number: CN217603868U
Application number: CN202221632565.8U
Authority: CN
Inventors: 杨娟; 鲍庆才; 刘海洋; 李瀚元
Original assignee: Yanshan Jinxing Aerosol Valve Manufacturing Co ltd
Current assignee: Yanshan Jinxing Aerosol Valve Manufacturing Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-10-18
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a valve for gas holder, including the disk seat, be provided with the mount pad on the disk seat, be provided with the needle on the mount pad, detachable is provided with the subassembly of righting of restriction needle axial activity on the mount pad, and the needle is including the first end that stretches into the mount pad, and the one end of first end is provided with the second end, and the diameter of first end is greater than the diameter of second end, and the subassembly of righting includes the basal portion of being connected with the mount pad, and the basal portion cooperates first end and second end respectively to be provided with first sheath and second sheath. The utility model discloses under the effect of righting the subassembly, the straight slip of first sheath axial can be followed to the first end, and the straight slip of second sheath axial can be followed to the second end, and righting the subassembly and playing cascaded dual spacing guide effect to the needle, when the relative disk seat activity of needle for the straight slip of needle axial avoids the needle skew phenomenon to appear, prevents that the needle from with wait to appear gas leakage phenomenon between the gas charging outfit and between the disk seat.

Description

Valve for gas storage tank

Technical Field

The utility model relates to the technical field of valves, especially, relate to a valve for gas holder.

Background

A gas holder for storing gaseous fuel is at the top installation valve usually, can realize the sealed to the gas holder through the valve, and can be convenient aerify gas equipment such as lighter through the valve, the valve of present stage includes the base of being made by the foil usually, be provided with the ooff valve on the base and be used for triggering the needle of ooff valve, the opening at the gas holder is installed to the base seal, when needing to aerify relevant equipment, align the needle with the inflation inlet of equipment, then press the gas holder hard, make the needle towards the inside direction axial activity of gas holder, and then trigger the ooff valve, make the ooff valve open, make gaseous fuel in the gas holder get into equipment, after the inflation finishes, loosen the gas holder, the needle resumes initial condition, and then close the ooff valve with sealed gas holder, there is certain shortcoming in the valve of this kind of structure in the in-process of use: because the base is made for the foil, during the reciprocating motion of needle, it is limited to the radial restriction moment of needle, when pressing the gas holder and aerifing, the crooked phenomenon of relative gas holder easily appears in the needle, the crooked back of needle, influence the needle tip on the one hand and by the cooperation degree between the gas charging port of gas charging outfit, influence the leakproofness between the two, on the other hand appear crooked also can influence the leakproofness between needle and the base, and then cause the gas leakage phenomenon easily, there is certain danger.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to avoid prior art's weak point, provide a valve for gas holder to effectively solve the weak point that exists among the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the valve for the gas storage tank comprises a valve seat, wherein a mounting seat used for mounting a switch valve is arranged on the valve seat, a valve needle used for triggering the switch valve is movably arranged on the mounting seat, a righting assembly used for limiting axial movement of the valve needle is detachably arranged on the mounting seat, the valve needle comprises a first end portion extending into the mounting seat, a second end portion is arranged at one end of the first end portion, the diameter of the first end portion is larger than that of the second end portion, the righting assembly comprises a base portion connected with the mounting seat, and the base portion is respectively matched with the first end portion and the second end portion and is provided with a first sheath and a second sheath.

Further, the basal portion is of a cylindrical structure, the basal portion is coaxially sleeved on the outer side of the mounting seat, and the first sheath, the second sheath and the basal portion are coaxially arranged.

Further, the base and the mounting seat are connected through threads.

Further, one end of the second sheath is connected with the top of the base part through the transition part, and the other end of the second sheath is connected with the first sheath.

Furthermore, a limiting ring is arranged between one end, far away from the second sheath, of the first sheath and the base, the inner side of the limiting ring is connected with the first sheath, and the outer side of the limiting ring abuts against the inner side wall of the base.

Furthermore, a first trimming edge is arranged between the inner side of the limiting ring and the first sheath, so that the end of the first sheath is in flaring shape.

Further, the transition part and the limiting ring are located in a radial plane of the base part.

Furthermore, be provided with the toper section between first end and the second end, the both ends of toper section respectively with first end and second end transitional coupling, be provided with between first sheath and the second sheath with the loudspeaker section of toper section adaptation.

Further, the end surface of the side wall at the end of the second end part is arranged in an arc shape.

Furthermore, the terminal lateral wall terminal surface of second tip includes first arc portion and the second arc portion of transitional coupling, first arc portion is located the inboard of second arc portion, and the inside wall of first arc portion indent second tip, the lateral wall of second arc portion protrusion second tip.

The above technical scheme of the utility model following beneficial effect has: the utility model discloses under the effect of righting the subassembly, the straight slip of first sheath axial can be followed to the first end, and the straight slip of second sheath axial can be followed to the second end, and righting the subassembly and playing cascaded dual spacing guide effect to the needle, when the relative disk seat activity of needle for the straight slip of needle axial avoids the needle skew phenomenon to appear, prevents that the needle from with wait to appear gas leakage phenomenon between the gas charging outfit and between the disk seat.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an axial cross-sectional view of FIG. 2;

FIG. 4 is an exploded view of FIG. 1;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

fig. 6 is a schematic structural view of a centering assembly according to an embodiment of the present invention.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are provided to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention, and the specific meanings of the above terms in the present invention can be understood in a specific case by those skilled in the art.

As shown in fig. 1-6, the valve for a gas storage tank according to this embodiment is installed on a gas storage tank for containing gaseous fuel, and specifically includes a valve seat 1, a mounting seat 2 is disposed on the valve seat 1, the mounting seat 2 protrudes out of the valve seat 1 and is in a cylindrical shape, the mounting seat 2 is inside the same as a switch valve, when the switch valve is closed, the gas storage tank is sealed, when the switch valve is opened, the related device can be inflated, a valve needle is disposed on the mounting seat 2, the valve needle and the mounting seat 2 are coaxially disposed, when the valve needle moves in a direction of the switch valve, the switch valve can be triggered, so that the switch valve is opened, when the valve needle moves in a direction away from the switch valve, the switch valve is closed again, more specifically, a centering assembly is detachably disposed on the mounting seat 2, and the centering assembly is used for limiting the straight movement of the valve needle in an axial direction, so as to avoid the needle from being tilted, and further avoid the loose contact between the valve needle and the device to be inflated, and avoid the loose contact between the valve needle and the valve seat 1, thereby effectively preventing the gas leakage and improving safety.

Specifically, the valve needle includes first end 3, first end 3 is located the bottom of valve needle and first end 3 can be movable stretch into mount pad 2 and be used for triggering the ooff valve in the mount pad 2, the top of first end 3 sets up second end 4, first end 3 and second end 4 coaxial arrangement, and the diameter of first end 3 is greater than the diameter of second end 4, the bigger part of valve needle diameter cooperates with mount pad 2, improve the relative stability between valve needle and mount pad 2, the centralizing subassembly includes base 5, base 5 and mount pad 2 detachable connection, be provided with first sheath 6 and second sheath 7 on the base 5 respectively, first sheath 6 cooperates with first end 3, second sheath 7 cooperates with second end 4, specifically, during the valve needle action, first end 3 can slide along first sheath 6 insidely, second end 4 can slide along second sheath 7 insidely, in order to reach the straight gliding effect of restriction axial valve needle.

More specifically, the base portion 5 is of a cylindrical structure, the base portion 5 is coaxially sleeved on the outer side of the mounting seat 2, and the first sheath 6, the second sheath 7 and the base portion 5 are coaxially arranged, in this embodiment, the base portion 5 and the mounting seat 2 can be connected through threads, so that the connection strength between the base portion 5 and the mounting seat 2 is increased, anti-slip threads can be arranged on the outer wall of the base portion 5, and the base portion 5 can be screwed more conveniently.

More specifically, one end of the second sheath 7 is connected with the top of the base 5 through the transition portion 8, so that a continuous bending structure is formed between the top of the base 5 and the top of the second sheath 7, the other end of the second sheath 7 is connected with the top end of the first sheath 6, when the valve needle is limited to move, the top of the second sheath 7 is farther away from the mounting seat 2, so that the top of the second sheath 7 can apply larger torque to the valve needle, the top of the base 5 applies acting force to the top of the second sheath 7 through the transition portion 8, so as to improve the limiting effect on the valve needle, in the embodiment, a limit ring 9 is arranged between one end of the first sheath 6, which is far away from the second sheath 7, and the base 5, namely, the limit ring 9 is arranged at the bottom end of the first sheath 6, the inner side of the limit ring 9 is connected with the bottom end of the first sheath 6, the outer side of the limit ring 9 can abut against the inner side wall of the base 5, so that the base 5 can also apply acting force to the bottom of the first sheath 6, so as to improve the limiting torque of the first sheath 6, and the valve needle can respectively apply balanced acting force to the top of the second sheath 7 and the bottom of the first sheath 6, and the valve needle can more integrally limit ring can be balanced.

More specifically, be provided with between the inboard of spacing ring 9 and first sheath 6 and cut edge 10 for the bottom of first sheath 6 is flaring shape setting, when installing rightting subassembly on to mount pad 2, is convenient for the needle to penetrate by first sheath 6.

More specifically, transition portion 8 and spacing ring 9 all are located the radial plane of basal portion 5, that is, transition portion 8 and spacing ring 9 are parallel to each other, and transition portion 8 and second sheath 7 and transition portion 8 and basal portion 5 all set up perpendicularly, and spacing ring 9 and first sheath 6 set up perpendicularly, and spacing ring 9 and basal portion 5 set up perpendicularly, and the shape is more regular, does benefit to the production shaping, reduction in production cost.

More specifically, be provided with toper section 11 between first end 3 and the second end 4, the both ends of toper section 11 respectively with

first end

3 and 4 transitional coupling of second end, be provided with loudspeaker section 12 between first sheath 6 and the second sheath 7,

loudspeaker section

12 and 11 adaptations of toper section, when the needle resumes initial condition after the direction action towards the ooff valve, second end 4 wears to establish again in the second sheath 7, first end 3 wears to establish again in the first sheath 6, under loudspeaker section 12 and toper section 11's effect, more do benefit to the holistic return of needle and ajust.

More specifically, the terminal lateral wall terminal surface of second end 4 is the arc setting, make the terminal formation slick and sly port of second end 4, circular-arc port does benefit to and increases second end 4 and treats the sealing contact between the aeration equipment, more specifically, the terminal lateral wall terminal surface of second end 4 includes first arc portion 13 and second arc portion 14, first arc portion 13 and second arc portion 14 transitional coupling, and first arc portion 13 is located the inboard of second arc portion 14, that is, first arc portion 13 is located the inboard of the terminal lateral wall terminal surface of second end 4, second arc portion 14 is located the outside of the terminal lateral wall terminal surface of second end 4, and first arc portion 13 recessing the inside wall of second end 4, second arc portion 14 protrudes the outside wall of second end 4, make the terminal of second end 4 be the lip form that expands outward, under the condition of long-time use, the terminal of second end 4 is continuous with treat that the aeration equipment offsets, when the terminal turn-up phenomenon appears of second end 4, avoid outside second end 4 to extend towards the inside turn-over terminal, prevent that the turn-up the turn-over of second end 4.

The utility model discloses a theory of operation: the utility model discloses install on the gas holder, twist basal portion 5 soon on mount pad 2, under this state, 3 adaptations of first end are in

first sheath

6, 4 adaptations of second end are in second sheath 7, and toper section 11 and loudspeaker section 12 cooperation, and then can play radial fixed effect to the needle whole, it is crooked to prevent that the needle from receiving external effort, when needing to treat the aeration equipment and aerify, offset the terminal of second end 4 and the inflation inlet of equipment, then press the gas holder, make the needle move towards the direction of mount pad 2, under the effect of first sheath 6 and second sheath 7, first end 3 and second end 4 all follow the straight slip of axial, and then make the needle follow the straight action of axial, prevent crooked appearing, make and keep stable relative state between needle and the mount pad 2, and make and keep good sealing contact between needle and the equipment inflation inlet, make the gaseous fuel in the gas holder pass through the needle and enter into equipment smoothly, the effectual gas leakage phenomenon that prevents to appear, after finishing, loosen smoothly at first sheath 6 and second sheath 7 and the restriction effect of the straight guide section of second, make the straight recovery effect of the restriction under the needle of straight guide section, make the straight effect of the straight.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed, many modifications and variations will be apparent to those skilled in the art, and the embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a valve for gas holder, includes the disk seat, be provided with the mount pad that is used for installing the ooff valve on the disk seat, mobilizable being provided with on the mount pad is used for triggering switch valve's needle, its characterized in that: the detachable is provided with the subassembly of rightting of restriction needle axial activity on the mount pad, and the needle is including stretching into the first end of mount pad, the one end of first end is provided with the second end, and the diameter of first end is greater than the diameter of second end, and the subassembly of righting includes the basal portion of being connected with the mount pad, the basal portion cooperates first end and second end respectively and is provided with first sheath and second sheath.

2. A valve for a gas storage tank as claimed in claim 1, wherein: the basal portion is of a cylindrical structure, the outer side of the mounting seat is coaxially sleeved with the basal portion, and the first sheath, the second sheath and the basal portion are coaxially arranged.

3. A valve for a gas tank according to claim 2, wherein: the base and the mounting seat are connected through threads.

4. A valve for a gas storage tank as claimed in claim 2, wherein: one end of the second sheath is connected with the top of the base part through the transition part, and the other end of the second sheath is connected with the first sheath.

5. A valve for a gas storage tank as claimed in claim 4, wherein: a limiting ring is arranged between one end, far away from the second sheath, of the first sheath and the base, the inner side of the limiting ring is connected with the first sheath, and the outer side of the limiting ring abuts against the inner side wall of the base.

6. A valve for a gas tank according to claim 5, wherein: a first trimming edge is arranged between the inner side of the limiting ring and the first sheath, so that the end of the first sheath is arranged in a flaring shape.

7. A valve for a gas storage tank as claimed in claim 5, wherein: the transition part and the limiting ring are located in the radial plane of the base part.

8. A valve for a gas storage tank as claimed in claim 1, wherein: the horn-shaped protective sleeve is characterized in that a conical section is arranged between the first end portion and the second end portion, two ends of the conical section are respectively in transitional connection with the first end portion and the second end portion, and a horn section matched with the conical section is arranged between the first protective sleeve and the second protective sleeve.

9. A valve for a gas tank according to claim 1, wherein: the end surface of the side wall at the tail end of the second end part is arc-shaped.

10. A valve for a gas tank as claimed in claim 9, wherein: the terminal lateral wall terminal surface of second tip includes first arc portion and the second arc portion of transitional coupling, first arc portion is located the inboard of second arc portion, and the inside wall of first arc portion concave yield second tip, the lateral wall of second arc portion protrusion second tip.