阅读说明：本技术 一种塑料内衬缠绕的气瓶 (Gas cylinder with wound plastic lining ) 是由 纪红飞 李召君 杨洪亮 李全海 赵帅 李国宝 何成 田野 邓君湘 孟丽莉 陈琳 于 2019-08-28 设计创作，主要内容包括：本发明提供了一种塑料内衬缠绕的气瓶,包括内衬、缠绕层、瓶嘴和支撑件,所述缠绕层紧密包裹在内衬外表面,所述缠绕层底部中心嵌合有增加强度的支撑件,所述缠绕层顶部中心嵌合有用于充气的瓶嘴,所述瓶嘴设有充气孔与所述内衬气密性连通,所述瓶嘴底部设有若干个带环形钳缩口的球形凹槽,所述瓶嘴中部表面设有环形斜凹槽,所述瓶嘴底部外侧面设有若干个弧形凹槽,所述缠绕层气密填充至所述球形凹槽、环形斜凹槽、弧形凹槽进行嵌合。本发明通过增加瓶嘴与缠绕层填充的接触面及支撑件,使瓶嘴牢固嵌合缠绕层和附着力,确保气密性；对出现弹性和塑性变形的缠绕层进行缩口保护,稳固可靠；同时,提高塑料内衬气瓶底部的支撑强度。(The invention provides a plastic liner-wound gas cylinder which comprises a liner, a winding layer, a cylinder nozzle and a supporting piece, wherein the winding layer is tightly wrapped on the outer surface of the liner, the supporting piece for increasing strength is embedded in the center of the bottom of the winding layer, the cylinder nozzle for inflating is embedded in the center of the top of the winding layer, an inflating hole is formed in the cylinder nozzle and is communicated with the liner in an airtight mode, a plurality of spherical grooves with annular clamping and reducing ports are formed in the bottom of the cylinder nozzle, an annular inclined groove is formed in the surface of the middle of the cylinder nozzle, a plurality of arc-shaped grooves are formed in the outer side face of the bottom of the cylinder nozzle, and the winding layer is hermetically filled to the spherical grooves, the annular inclined groove. According to the invention, the contact surface and the supporting piece filled between the bottle mouth and the winding layer are increased, so that the winding layer and the adhesive force are firmly embedded in the bottle mouth, and the air tightness is ensured; the winding layer with elastic and plastic deformation is subjected to necking protection, and the winding layer is stable and reliable; meanwhile, the support strength of the bottom of the plastic lining gas cylinder is improved.)

1. The utility model provides a winding gas cylinder of plastics inside lining, its characterized in that, includes inside lining, winding layer, bottleneck and support piece, the winding layer closely wraps up at the inside lining surface, winding layer bottom center gomphosis has the support piece of gaining in strength, winding layer top center gomphosis has and is used for the gas filled bottleneck, the bottleneck is equipped with the inflation hole, the inflation hole with inside lining gas tightness intercommunication, the bottleneck bottom is equipped with a plurality of spherical recess, spherical recess bottom is the annular pincers throat, bottleneck middle part surface is equipped with the oblique recess of annular inwards, bottleneck bottom lateral surface is equipped with a plurality of arc recess, winding layer airtight pack extremely spherical recess, the oblique recess of annular, arc recess carry out the gomphosis.

2. The wrapped gas cylinder with plastic lining according to claim 1, wherein the inner side wall of the inflation hole is provided with internal threads, and a gasket groove is arranged above the inflation hole and is positioned on the upper end face of the cylinder nozzle.

3. The plastic liner wrapped gas cylinder according to claim 1, wherein the support member is provided with an annular groove at the middle part, the bottom of the support member is provided with an inward blind hole for auxiliary positioning, the inner side wall of the blind hole is provided with internal threads, and the outer side wall of the support member is provided with a gear lace groove.

4. The plastic liner wrapped gas cylinder according to claim 1, wherein the liner is made of plastic.

5. The wrapped plastic lined gas cylinder according to claim 1, wherein the wrapping layer is made of a fiber composite material or a tree branch composite material.

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of gas cylinders, in particular to a gas cylinder with a wound plastic lining.

[ background of the invention ]

The gas cylinder can be used frequently in life and production, the traditional gas cylinder is manufactured by an aluminum alloy gas cylinder and a steel gas cylinder, and the gas cylinders are also wound by a steel lining or an aluminum alloy lining and are large and heavy.

At present, the plastic lining gas cylinder is available abroad, replaces the traditional metal gas cylinder with the light weight and corrosion resistance, and has wide prospect. However, the gas outlet of the plastic liner gas cylinder is made of metal materials, the metal gas outlet and the plastic are wound in a clockwise rotating mode and sleeved together, the contact surface of the plastic liner and the metal gas outlet is infirm in matching and prone to gas leakage, the plastic liner gas cylinder is poor in sealing performance, certain potential safety hazards exist for the plastic liner gas cylinder containing volatile gas, and the bottom of the plastic liner gas cylinder is prone to being sunken due to poor supporting strength.

[ summary of the invention ]

The invention provides a gas cylinder wound by a plastic lining, aiming at solving the problems that the gas cylinder with the plastic lining has poor sealing performance due to the infirm matching of a cylinder mouth contact surface of the gas cylinder wound by the plastic lining and easy gas leakage, and the gas cylinder with the plastic lining has poor bottom supporting strength and easy bottom depression.

The invention is realized by the following technical scheme: the utility model provides a winding gas cylinder of plastics inside lining, includes inside lining, winding layer, bottle neck and support piece, the winding layer closely wraps up at the inside lining surface, winding layer bottom center gomphosis has the support piece of gaining in strength, winding layer top center gomphosis has and is used for the gas filled bottle neck, the bottle neck is equipped with the inflation hole, the inflation hole with inside lining gas tightness intercommunication, the bottle neck bottom is equipped with a plurality of spherical recess, spherical recess bottom is the annular pincers throat, bottle neck middle part surface is equipped with the oblique recess of annular inwards, bottle neck bottom lateral surface is equipped with a plurality of arc recess, winding layer airtight pack extremely spherical recess, the oblique recess of annular, arc recess carry out the gomphosis.

Furthermore, the inner side wall of the inflation hole is provided with internal threads, and a gasket groove is arranged above the inflation hole and is positioned on the upper end face of the bottle nozzle.

Further, the support piece middle part is equipped with the ring channel, the support piece bottom is equipped with the blind hole that is used for assistance-localization real-time inwards, the blind hole inside wall is equipped with the internal thread, the support piece lateral wall is equipped with gear lace groove.

Further, the lining material is plastics.

Further, the winding layer is made of a fiber composite material or a branch composite material.

The invention has the beneficial effects that:

the contact surface between the bottle mouth and the packing of the winding layer is increased, so that the bottle mouth is firmly embedded with the winding layer and the plastic lining, the adhesive force of the filling surface of the bottle mouth is improved, and the air tightness of the plastic lining gas cylinder is ensured; the spherical groove is adopted to perform necking protection on the winding layer with elastic and plastic deformation, and the winding layer is stable and reliable; the supporting piece is additionally arranged, so that the supporting strength of the bottom of the plastic lining gas cylinder is improved, and the bottom is prevented from sinking.

[ description of the drawings ]

FIG. 1 is a schematic cross-sectional view of a gas cylinder wrapped with a plastic liner according to the present invention;

FIG. 2 is a schematic cross-sectional view of the bottle mouth of the present invention;

FIG. 3 is a schematic top view of the bottle mouth of the present invention;

FIG. 4 is a cross-sectional view of the support member of the present invention;

FIG. 5 is a bottom view of the support member of the present invention;

reference numerals: 1. a liner; 2. a winding layer; 3. a bottle mouth; 301. an inflation hole; 302. a spherical recess; 303. a ring-shaped clamp is contracted; 304. an annular inclined groove; 305. an arc-shaped groove; 306. a gasket groove; 4. a support member; 401. an annular groove; 402. blind holes; 403. gear lace grooves.

[ detailed description ] embodiments

The invention is further described with reference to the accompanying drawings and the detailed description:

as shown in fig. 1 to 3, a gas cylinder wound with a plastic lining comprises a lining 1, a winding layer 2, a cylinder nozzle 3 and a support member 4, wherein the winding layer 2 is tightly wrapped on the outer surface of the lining 1, the support member 4 for increasing strength is embedded in the center of the bottom of the winding layer 2, the cylinder nozzle 3 for inflating is embedded in the center of the top of the winding layer 2, the cylinder nozzle 3 is provided with an inflating hole 301, the inflating hole 301 is communicated with the lining 1 in an airtight manner, a plurality of spherical grooves 302 are arranged at the bottom of the cylinder nozzle 3, an annular clamping and reducing opening 303 is arranged at the bottom of the spherical groove 302, an annular inclined groove 304 facing inwards is arranged on the surface of the middle of the cylinder nozzle 3, a plurality of arc grooves 305 are arranged on the outer side surface of the bottom of the cylinder nozzle 3, and the winding layer 2 is hermetically filled in the spherical groove 302, the annular inclined.

In this embodiment, the spherical recess 302 that the bottle neck 3 set up deepens into 3 middle parts of bottle neck, avoids traditional recess only to set up on the surface and insecure, just bottle neck 3 still is provided with oblique recess 304 of annular and arc recess 305, strengthens the control of the torsion that produces when twisting to bottle neck 3, and the prevention drops not hard up, and spherical recess 302 bottom is annular pincers throat 303, can carry out the throat protection to the winding layer 2 that appears elasticity and plastic deformation, ensures the gas tightness of the winding gas cylinder of plastics inside lining.

In one embodiment, the plastic liner wrapped cylinder is made by a rotational molding process. Install support piece 4 in rotational moulding mould's one end through blind hole 402, the other end at rotational moulding mould is installed through inflation inlet 301 to bottle neck 3, the closed mould, carry out the blowing when rotational moulding adds man-hour, make the shaping of plastics inside lining, combined material's winding layer 2 is along with the roll closely twines inside lining 1 surface, simultaneously firm a plurality of slotted holes of packing bottle neck 3 and support piece 4's slotted hole, and then with inside lining 1, winding layer 2, bottle neck 3 and support piece 4 integrated into one piece, it is firm to produce, the strong plastics inside lining winding gas cylinder of gas tightness.

Preferably, the inner side wall of the inflation hole 301 is provided with internal threads, and a gasket groove 306 is arranged above the inflation hole 301 and is positioned on the upper end face of the bottle mouth 3.

The cylinder mouth 3 is used for installing a gas cylinder valve, needs to bear larger torsion and axial load, can utilize the internal thread of the inflation hole 301 to install the gas cylinder valve, and meanwhile, sleeves are sleeved with rubber gaskets to gasket grooves 306 to prevent the installed valve from leaking gas, so that the air tightness of a gas cylinder wound by a plastic lining is enhanced.

Preferably, as shown in fig. 4 to 5, an annular groove 401 is provided in the middle of the support 4, an inward blind hole 402 for auxiliary positioning is provided at the bottom of the support 4, an internal thread is provided on the inner side wall of the blind hole 402, and a gear lace groove 403 is provided on the outer side wall of the support 4.

In one embodiment, when the cylinder wound by the plastic lining is subjected to rotational molding winding, the supporting piece 4 at the center of the bottom rotates along the axis, so that the contact area of the winding layer is enlarged, the strength of the bottom is enhanced, the bearing capacity of the bottom is increased, and the bottom of the cylinder wound by the plastic lining is prevented from sinking.

Preferably, the lining 1 is made of plastic.

In an alternative embodiment, the liner 1 may be made of Polyethylene (PE) or nylon 6(PA 6).

Preferably, the winding layer 2 is made of a fiber composite material or a branch composite material.

Wherein the fiber is glass fiber or carbon fiber; the resin is phenolic resin.

Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings of the foregoing description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.