CN217153814U

CN217153814U - Metal lining for composite material gas cylinder mouth valve seat

Info

Publication number: CN217153814U
Application number: CN202220807638.6U
Authority: CN
Inventors: 张晓冰
Original assignee: Haikong Composite Materials Technology Co ltd
Current assignee: Haikong Composite Materials Technology Co ltd
Priority date: 2022-04-09
Filing date: 2022-04-09
Publication date: 2022-08-09
Anticipated expiration: 2032-04-09

Abstract

The utility model discloses a metal inside lining for combined material gas cylinder bottleneck disk seat, including installation department, connecting portion and extension portion, the installation department is the tubulose and includes the inner wall, the tip of inner wall sets up the screw thread, the lower part of inner wall is equipped with along the cushion cap of the radial shrink of installation department, the cushion cap sets up the final position of screw thread, the outer wall of installation department is close to the top and sets up the boss, is the tubulose the connecting portion next-door neighbour the installation department, the bottom forms extension portion along its radial extension, extension portion runs through the portion along a plurality of circumference equipartition. The use is on combined material gas cylinder bottleneck disk seat, the utility model discloses outside cover cladding plastics is being connected when screwing with attached, can not produce vertically and transversely slide with cladding plastics to realize the leakproofness of the firm connection of attached and gas cylinder and whole gas cylinder.

Description

Metal lining for composite material gas cylinder mouth valve seat

Technical Field

The utility model relates to a combined material gas cylinder field, in particular to a metal inside lining for combined material gas cylinder bottleneck disk seat.

Background

The composite material gas cylinder mouth valve seat is a key component for ensuring the high pressure resistance and the air tightness of the composite material gas cylinder. The prior composite material gas cylinder mouth valve seat is generally formed by wrapping plastic outside a metal lining, the metal lining is used for installing accessories such as valves and the like and bearing the pressure of filling media inside a gas cylinder, and the sealing connection between the valve seat and a plastic liner is realized by hot melting the wrapping plastic and the plastic liner. For example, the invention patent of the chinese patent with the publication number CN109751509B, granted on 5/11/2021, discloses a bottleneck valve seat of a composite material high pressure resistant storage and transportation bottle, which comprises a metal lining and a coated plastic, wherein the upper part of the metal lining is provided with a tubular mounting part, the outer part of the valve seat is a winding layer covered by a resin and fiber composite material, threads are arranged in the tubular mounting part, the metal lining is connected with a valve through threads, the tubular mounting part is provided with an inwardly extending metal sealing bearing platform, the tail end of the plastic bearing platform coated with the metal sealing bearing platform is contacted with the threads, the top end of the plastic bearing platform is provided with a limiting groove, a sealing gasket is arranged in the limiting groove, the lower part of the metal lining is provided with a metal connecting part, the bottom of the metal connecting part extends along the radial direction to form a disk-shaped lining shoulder, the plastic coated outside the disk-shaped lining shoulder is connected with the liner of the composite material high pressure resistant storage and transportation bottle through hot melting, and the metal lining is made of steel or copper or alloy material. The invention can ensure that the composite material storage and transportation bottle does not leak in the process of filling and using high-pressure medium, and realizes the sealing of the bottle opening of the gas bottle.

However, since the metal liner and the plastic coating are two materials with different polarities, the two materials are difficult to be firmly fixed together. By adopting the composite material gas cylinder opening valve seat with the structure, when the upper tubular installation part of the metal lining is screwed with the accessory, the metal lining and the cladding plastic easily slide under the action of torsion, so that the connection firmness of the accessory and the gas cylinder and the sealing performance of the whole gas cylinder are influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a metal inside lining for combined material gas cylinder bottleneck disk seat uses on combined material gas cylinder bottleneck disk seat, when connecting the appurtenance of screwing, can not produce with the cladding plastics and slide to realize the leakproofness of the firm connection of appurtenance and gas cylinder and whole gas cylinder.

In order to solve the technical problem, the utility model discloses a technical scheme does:

the utility model provides a metal lining for combined material gas cylinder bottleneck disk seat, includes installation department, connecting portion and extension portion, the installation department is the tubulose and includes the inner wall, the tip of inner wall sets up the screw thread, the lower part of inner wall is equipped with along the radial cushion cap that contracts of installation department, the cushion cap sets up the ending position of screw thread, the outer wall of installation department is close to the top and sets up the boss, is the tubulose connecting portion next-door neighbour the installation department, the bottom forms extension portion along its radial extension, extension portion runs through the portion along a plurality of circumference equipartition.

Preferably, the mounting portion, the connecting portion, and the extension portion are integrally formed.

Preferably, a plurality of grooves are arranged on the outer wall of the mounting part and/or the connecting part.

Preferably, the outer wall of the mounting part and/or the connecting part is provided with a plurality of knurls.

Preferably, the boss has a rectangular longitudinal section.

Preferably, the longitudinal section of the boss is a right triangle.

Preferably, the extension portion has a disk shape.

Preferably, the penetrating part is any one of a round hole, a square hole and a diamond hole.

Preferably, the through part is a cut with a triangular cross section.

Preferably, the penetrating part is a cut with an arc-shaped cross section.

Adopt above-mentioned technical scheme, because the outer wall at the installation department is close to the top and sets up the boss, during the use, it is that, the boss restraines the axial shrink and the slip of cladding plastics to cover the metal inside lining when cladding plastics. Be the next adjacent installation department of pipy connecting portion, the bottom forms discoid extension portion along its radial extension, and extension portion is along circumference equipartition a plurality of through-penetration portion, and during the use, the through-penetration portion is filled up to cladding plastics, and when having avoided installation department and annex to be connected and screwed, metal inside lining and parcel plastics produced to slide in week. The structure ensures that the metal lining and the wrapping plastic do not slide in the longitudinal direction and the transverse direction, thereby realizing the firm connection between the accessory and the gas cylinder and the sealing performance of the whole gas cylinder.

Drawings

Fig. 1 is a perspective view of a first embodiment of the present invention;

fig. 2 is a longitudinal sectional view of a first embodiment of the present invention;

FIG. 3 is a longitudinal sectional view of an embodiment of the present invention in a use state;

fig. 4 is a perspective view of a second embodiment of the present invention;

fig. 5 is a perspective view of a third embodiment of the present invention.

In the figure:

1-mounting part, 11-bearing platform, 12-boss, 13-outer wall and 14-inner wall;

2-a connecting part;

3-extension, 31-penetration;

4-coating plastic.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example one

As shown in fig. 1-3, the embodiment of the utility model provides a metal lining for combined material gas cylinder valve seat who provides, including installation department 1, connecting portion 2 and extension portion 3, installation department 1 is the tubulose and includes inner wall 14, and the tip of inner wall 14 sets up the screw thread for connect the annex, the annex is like valve, flowmeter etc.. A bearing platform 11 which is contracted along the radial direction of the mounting part 1 is arranged at the lower part of the inner wall 14, and the bearing platform 11 is arranged at the end position of the thread and is used for bearing the sealing ring in use.

When in use, the outer surface of the utility model is covered with the cladding plastic 4 except the end part of the inner wall 14 and the top end surface of the utility model. The outer wall of the mounting part 1 is provided with a boss 12 close to the top end, and the longitudinal section of the boss 12 can be rectangular or right-angled triangular, so as to inhibit the axial shrinkage and slippage of the coated plastic 4. The tubular connecting part 2 is adjacent to the mounting part 1, and the bottom extends in the radial direction to form a disk-shaped extension part 3. The extending part 3 is evenly distributed with a plurality of penetrating parts 31 along the circumferential direction, and the penetrating parts 31 are round holes, square holes, rhombic holes or holes with other shapes. The penetration portion 31 is filled with cladding plastics 4 to when avoiding installation department 1 and annex to screw, the utility model discloses produce to slide with the parcel plastics in week. The outer wall 13 of installation department 1 and/or connecting portion 2 sets up a plurality of recesses or annular knurls for reinforcing cladding plastics 4 with the utility model discloses between combine and restrain 4 axial contractions of cladding plastics.

The mounting portion 1, the connecting portion 2, and the extending portion 3 are integrally formed, and first, a blank is formed by forging and casting, and then, mechanical finish machining is performed.

Example two

As shown in fig. 4, in the present embodiment, a plurality of penetrating portions 31 are uniformly distributed on the extending portion 3 along the circumferential direction, and the penetrating portions 31 are notches with triangular cross sections. The other structure is the same as the first embodiment.

EXAMPLE III

As shown in fig. 5, in the present embodiment, a plurality of penetrating portions 31 are uniformly distributed on the extending portion 3 along the circumferential direction, and the penetrating portions 31 are notches with arc-shaped cross sections. The other structure is the same as the first embodiment.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. The utility model provides a metal inside lining for combined material gas cylinder bottleneck disk seat which characterized in that: including installation department (1), connecting portion (2) and extension portion (3), installation department (1) is the tubulose and includes inner wall (14), the tip of inner wall (14) sets up the screw thread, the lower part of inner wall (14) is equipped with cushion cap (11) along installation department (1) radial contraction, cushion cap (11) set up the final position of screw thread, the outer wall of installation department (1) is close to the top and sets up boss (12), is tubulose connecting portion (2) next-door neighbour installation department (1), the bottom forms extension portion (3) along its radial extension, extension portion (3) run through portion (31) along circumference equipartition a plurality of.

2. A metal liner for a composite gas cylinder neck valve cup according to claim 1, wherein: the mounting part (1), the connecting part (2) and the extension part (3) are integrally formed.

3. A metal liner for a composite gas cylinder neck valve cup according to claim 1, wherein: the outer wall (13) of the mounting part (1) and/or the connecting part (2) is provided with a plurality of grooves.

4. A metal lining for a composite material gas cylinder mouth valve seat according to any one of claims 1 to 3, characterized in that: the outer wall (13) of the mounting part (1) and/or the connecting part (2) is provided with a plurality of knurls.

5. A metal liner for a composite gas cylinder neck valve cup according to claim 4, wherein: the longitudinal section of the boss (12) is rectangular.

6. A metal liner for a composite gas cylinder neck valve cup according to claim 4, wherein: the longitudinal section of the boss (12) is a right-angled triangle.

7. A metal liner for a composite gas cylinder neck valve cup according to claim 4, wherein: the extension part (3) is disc-shaped.

8. A metal liner for a composite gas cylinder neck valve cup according to claim 7, wherein: the penetrating part (31) is any one of a round hole, a square hole and a diamond hole.

9. A metal liner for a composite gas cylinder neck valve cup according to claim 7, wherein: the penetrating part (31) is a notch with a triangular cross section.

10. A metal liner for a composite gas cylinder neck valve cup according to claim 7, wherein: the penetrating part (31) is a cut with an arc-shaped cross section.