CN222479171U

CN222479171U - Liner support tool

Info

Publication number: CN222479171U
Application number: CN202420077345.6U
Authority: CN
Inventors: 金钊; 郭淑芬
Original assignee: Weishi Energy Technology Co Ltd
Current assignee: Weishi Energy Technology Co Ltd
Priority date: 2024-01-12
Filing date: 2024-01-12
Publication date: 2025-02-14
Anticipated expiration: 2034-01-12

Abstract

The present application relates to an inner liner support tool, comprising: a rod seat assembly, the rod seat assembly comprising a hollow rod structure with an opening at the first end, the hollow rod structure having a mating section that is sealed with a valve seat; a support rod assembly, the support rod assembly comprising a moving rod and a support structure, the first end of the moving rod is inserted into the hollow rod structure, the second end of the moving rod is located outside the hollow rod structure, the first end of the support structure is fixed to the first end of the hollow rod structure, and the second end of the support rod is located at the second end of the moving rod; the moving rod can move along the axial direction of the hollow rod structure, so that the support structure has an open supporting state, or a retracted folding state. The technical solution of the present application effectively solves the problem in the prior art that the inner liner is easily deformed when it is assembled with the valve seat.

Description

Liner supporting tool

Technical Field

The application relates to the technical field of container support, in particular to a liner support tool.

Background

The development of the hydrogen storage cylinder has been over 50 years, and is divided into four types, namely an all-metal cylinder (I type), a metal liner fiber circumferential winding cylinder (II type), a metal liner fiber full winding cylinder (III type) and a nonmetal liner fiber full winding cylinder (IV type). The type I and type II gas cylinders have relatively large weight, and are difficult to meet the requirement of hydrogen storage density per unit mass. Compared with a III-type gas cylinder, an IV-type gas cylinder generally adopts a manufacturing method of winding nonmetal inner containers such as plastics and carbon fibers, so that the gas cylinder has the advantages of lighter weight, lower cost and higher hydrogen storage density, is easy to market and has wider application fields.

The main structure of the IV gas cylinder comprises a non-metal liner 1), a metal valve seat 2), a sealing structure 3), a cylinder valve/tail valve 4) and carbon fiber and resin 5). The nonmetallic liner is a rotary shell with a hollow inside. According to different liner forming processes, the method can be divided into four process routes of injection molding, welding, rotational molding, blow molding, injection molding, extrusion and welding. The injection molding process includes machining two identical end socket sections, and welding the end socket sections to form the inner container.

The end socket sections at the two ends of the liner are provided with openings, and the structure at the openings is matched with the structure of the valve seat. The valve seat can be integrally formed with the liner in the liner forming stage, and also can be assembled on the liner after the liner is formed.

For the structure assembled after the liner is molded, the valve seat and the liner are usually prevented from rotating relatively to each other so as to be bonded and fixed, but in the bonding process, the inventor finds that the bonding process usually occurs

The opening of the liner and the shoulder are deformed by sinking, so that the bonding quality is difficult to ensure, and the safety of the product is influenced.

Disclosure of utility model

The application provides a liner supporting tool, which solves the problem that the liner is easy to deform when being assembled with a valve seat in the prior art.

The liner supporting tool comprises a rod seat assembly, a supporting rod assembly and a supporting rod assembly, wherein the rod seat assembly comprises a hollow rod structure with an opening at the first end, the hollow rod structure is provided with a matching section matched with a valve seat in a sealing mode, the supporting rod assembly comprises a moving rod and a supporting structure, the first end of the moving rod is arranged in the hollow rod structure in a penetrating mode, the second end of the moving rod is located outside the hollow rod structure, the first end of the supporting structure is fixed at the first end of the hollow rod structure, the second end of the supporting structure is located at the second end of the moving rod, and the moving rod can move along the axial direction of the hollow rod structure so that the supporting structure can be in an open supporting state or a folded state.

Further, the hollow rod structure is also provided with a limiting boss, and the limiting boss is positioned on one side of the matching section, which is close to the second end of the hollow rod structure.

Further, the hollow rod structure further comprises an operation section and a force application section, the force application section forms a second end of the hollow rod structure, the operation section is located between the force application section and the limiting boss, the operation section is provided with a long hole, the long hole extends along the axis direction of the hollow rod structure, and the support rod assembly further comprises an operation part which is arranged in the long hole in a penetrating mode and is connected with the movable rod.

Further, the operation section is also provided with a fixing hole, and the fixing hole is positioned at one end of the long hole close to the force application section and extends along the circumferential direction of the hollow rod structure.

Further, the liner support tool further includes a first sealing structure disposed between the hollow rod structure and the movable rod, and the first sealing structure is located between the elongated hole and the first end of the hollow rod structure.

Further, the first sealing structure comprises a first sealing ring, the inner wall of the hollow rod structure is provided with a first sealing groove, and the first sealing ring is partially positioned in the first sealing groove.

Further, the hollow rod structure further comprises a sealing rod section, the sealing rod section is located between the matching section and the second end of the hollow rod structure, the outer diameter of the sealing rod section is smaller than that of the matching section, the liner supporting tool further comprises a second sealing structure, and the second sealing structure is located on the sealing rod section.

Further, the liner support tool further comprises a third sealing structure, the hollow rod structure further comprises an operating rod section and a force application rod section, the force application rod section forms a second end of the hollow rod structure, and the third sealing structure is arranged in the operating rod section and is located between the first end of the moving rod and the force application rod section.

Further, the support structure further comprises a plurality of support rods, the plurality of support rods are arranged at intervals along the circumference of the first end of the hollow rod structure, each support rod is an integral elastic rod, or each support rod is composed of a plurality of rod sections.

Further, when each support bar is composed of a plurality of bar segments, the support bar includes a first bar segment and a second bar segment, a first end of the first bar segment is rotatably connected with an outer wall of the first end of the hollow bar structure, a second end of the first bar segment is rotatably connected with the first end of the second bar segment, and a second end of the second bar segment is rotatably connected with the second end of the movable bar.

By applying the technical scheme of the application, when the liner support tool is used, the liner support tool with the support structure in the folded state stretches into the valve seat, and after the liner support tool is in the opened support state through the matching section of the hollow rod structure and the valve seat in a sealing fit manner, the liner is supported by the support structure, so that the liner is not easy to deform when the liner is operated. The technical scheme of the application effectively solves the problem that the liner is easy to deform when the liner is assembled with the valve seat in the prior art.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic view showing a supporting state of a liner supporting tool according to an embodiment of the present application;

FIG. 2 is a schematic view showing a folded state of the liner support tool of FIG. 1;

FIG. 3 illustrates a schematic view of the bladder support tool of FIG. 1 mated with a bladder;

Fig. 4 shows a schematic workflow of the liner support tool of the present application.

Wherein the above figures include the following reference numerals:

10. the device comprises a rod seat assembly, a hollow rod structure, a 111, a matching rod section, a 112, a limiting boss, a 113, an operating rod section, a 114, a force application rod section, a 115, a sealing rod section, a 20, a support rod assembly, a 21, a moving rod, a 22, a support structure, a 23, an operating part, a 30, a liner, a 40, a valve seat, a 50, a first sealing structure and a 60, third sealing structure.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Spatially relative terms, such as "above," "upper" and "upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the process is carried out, the exemplary term "above" may be included. Upper and lower. Two orientations below. The device may also be oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

As described in the background art, the problem that the liner opening and the shoulder are sinking and deforming often occurs by adopting the bonding method in the prior art, and the inventor researches and discovers that the root cause of the problem is that the bonding method in the prior art needs to press the liner, and the problem can occur in the pressing process. Specifically, in the prior art, the bonding and fixing of the valve seat and the liner are generally carried out by adopting a bonding mode that 1) the valve seat is mounted on a winding shaft (the winding shaft is fixed on a winding machine), 2) glue is uniformly coated on the matching surface of the valve seat and the liner, 3) the liner is clamped, the liner is aligned with the through holes of the bottle mouth and the valve seat, and 4) the bonding and fixing of the valve seat and the liner are completed by applying pressure along the axial direction. The valve seat material is generally aluminum alloy or stainless steel, and the liner material is generally PA (polyamide) or HDPE (high density polyethylene), so that the liner material is fragile in practical operation, but the valve seat material has higher hardness, so that the liner is easily deformed when external force is applied.

Based on the above, the problem that the liner is easy to deform in the prior art is effectively solved on the basis of not adjusting and changing the liner material. The scheme is as follows:

As shown in fig. 1 to 3, the liner support tool of the present embodiment includes a stem base assembly 10 and a support rod assembly 20. The stem block assembly 10 includes a hollow stem structure 11 having an opening at a first end, the hollow stem structure 11 having a mating stem segment 111 for sealing engagement with the valve seat 40. The support rod assembly 20 includes a moving rod 21 and a support structure 22, a first end of the moving rod 21 is disposed through the hollow rod structure 11, a second end of the moving rod 21 is disposed outside the hollow rod structure 11, a first end of the support structure 22 is fixed to the first end of the hollow rod structure 11, and a second end of the support structure 22 is disposed at the second end of the moving rod 21. The moving rod 21 is movable in the axial direction of the hollow rod structure 11 so that the support structure 22 has an opened support state or a collapsed folded state.

When the technical scheme of the application is applied, during use, the liner supporting tool with the supporting structure 22 in a folded state stretches into the valve seat 40, and after the liner supporting tool is in a sealed fit with the valve seat 40 through the fit rod section 111 of the hollow rod structure 11, the supporting structure 22 of the liner supporting tool is in an open supporting state, and the liner 30 is supported by the supporting structure 22, so that the liner 30 is not easy to deform when the liner 30 is operated.

In this embodiment, the mating rod section 111 is mated by a threaded engagement. The detailed steps of the specific matching are shown in figure 4.

As shown in fig. 1 to 4, in the technical solution of the present embodiment, the hollow bar structure 11 further has a limiting boss 112, and the limiting boss 112 is located on a side of the mating bar segment 111 near the second end of the hollow bar structure 11. The limiting boss 112 plays a role of abutting and matching with the valve seat 40 (bottle valve seat), so that whether the hollow rod structure 11 is installed in place or not can be obtained, and on the other hand, the limiting effect of the hollow rod structure 11 and the valve seat 40 is played. The outer diameter of the limit boss 112 is the same as the outer diameter of the valve seat 40.

As shown in fig. 1 to 3, in the technical solution of the present embodiment, the hollow bar structure 11 further includes an operation bar section 113 and a force application bar section 114, the force application bar section 114 forms a second end of the hollow bar structure 11, the operation bar section 113 is located between the force application bar section 114 and the limit boss 112, the operation bar section 113 has a long hole, the long hole extends along the axis direction of the hollow bar structure 11, the support bar assembly 20 further includes an operation portion 23, and the operation portion 23 is disposed in the long hole in a penetrating manner and is connected to the moving bar 21. The arrangement of the operation lever section 113 facilitates the arrangement of the operation portion 23 and the long hole, so that the axial movement of the movement lever 21 is easily operated by the operator. The force applying lever segment 114 facilitates the operator's manipulation and application of force to the hollow lever structure 11. In this embodiment, the outer surface of the force applying rod 114 is regular hexagon.

As shown in fig. 1 to 3, in the technical solution of the present embodiment, the operation rod section 113 further has a fixing hole, which is located at one end of the long hole near the force application rod section 114 and extends along the circumferential direction of the hollow rod structure 11. When the supporting structure 22 is in the supporting state, the operating part 23 is shifted into the fixing hole, so that the supporting structure 22 cannot be folded, and an operator does not need to operate the operating part 23 all the time. The operating portion 23 is a protruding column, a first end of which is fixedly connected to the moving rod 21, and a second end of which is located outside the hollow rod structure 11. The amount of rotational deformation of the operation portion 23 is small, and the support structure 22 can be adapted to this amount of deformation.

In the technical solution of the present embodiment, the liner support tool further includes a first sealing structure 50, where the first sealing structure 50 is disposed between the hollow rod structure 11 and the moving rod 21, and the first sealing structure 50 is located between the long hole and the first end of the hollow rod structure 11. When the inner container 30 is filled with gas under a certain pressure, the gas in the inner container 30 can be prevented from leaking due to the arrangement of the first sealing structure 50.

In the technical solution of the present embodiment, the first sealing structure 50 includes a first sealing ring, and the inner wall of the hollow rod structure 11 is provided with a first sealing groove, and the first sealing ring is partially located in the first sealing groove. The structure is convenient to process and easy to operate. It should be noted that, in order to make the sealing effect better, the first sealing structure 50 further includes a second sealing ring, the inner wall of the hollow rod structure 11 is provided with a second sealing groove, the second sealing groove and the first sealing groove are disposed at intervals along the axial direction of the hollow rod structure 11, and the second sealing ring is partially located in the second sealing groove.

As shown in fig. 1 and 3, in the technical solution of the present embodiment, the hollow rod structure 11 further includes a sealing rod section 115, the sealing rod section 115 is located between the mating rod section 111 and the second end of the hollow rod structure 11, and the outer diameter of the sealing rod section 115 is smaller than the outer diameter of the mating rod section 111, and the liner support tool further includes a second sealing structure located on the sealing rod section 115. The second sealing structure may seal between the hollow rod structure 11 and the liner 30. It should be noted that the outer wall of the sealing rod segment 115 has an annular groove, and a portion of the second sealing structure is located in the annular groove.

As shown in fig. 1 to 3, in the technical solution of the present embodiment, the supporting structure 22 further includes a plurality of supporting rods, which are disposed at intervals along the circumference of the first end of the hollow rod structure 11, and each supporting rod is composed of a plurality of rod segments. Each bracing piece comprises a plurality of pole sections, and some pole sections are transmitted, and some pole sections support, and such structure sets up, and is more nimble during the use.

As shown in fig. 1 to 3, in the technical solution of the present embodiment, when each support rod is composed of a plurality of rod segments, the support rod includes a first rod segment and a second rod segment, the first end of the first rod segment is rotatably connected with the outer wall of the first end of the hollow rod structure 11, the second end of the first rod segment is rotatably connected with the first end of the second rod segment, and the second end of the second rod segment is rotatably connected with the second end of the moving rod 21. The first pole segment supports with the liner 30, the second pole segment transmits force, and supports the first pole segment. When the operation portion is fixed in the fixing hole, the first rod segment is in a supporting state, and the first rod segment extends in the radial direction of the hollow rod structure 11. The end of the liner 30 is not entirely arcuate in shape of the closure head when it is designed. The end of the liner 30 is a plane, the arc-shaped part of the seal head is connected between the end plane of the liner 30 and the main body of the liner 30, and the structure ensures that the supporting plane of the liner 30 by the supporting structure 22 is larger and the supporting effect is better.

As another embodiment, each support rod is an integral elastic rod, and when the support structure 22 is in a support state, the elastic rod is in an arc shape adapted to the end closure of the liner 30, and such a structure is suitable for a structure when the closure of the liner 30 is in an arc shape.

As shown in fig. 1, in the technical solution of the present embodiment, the liner support tool further includes a third sealing structure 60, the hollow rod structure 11 further includes an operation rod section 113 and a force application rod section 114, the force application rod section 114 forms a second end of the hollow rod structure 11, and the third sealing structure 60 is disposed in the operation rod section 113 and located between the first end of the moving rod 21 and the force application rod section 114. The force application rod section 114 is of a solid structure, the movable rod 21 is of a hollow structure, and when the liner 30 is inflated, the force application rod section 114 is taken down, and gas is injected into the liner through the hollow structure of the movable rod 21. The third sealing structure 60 then seals the movement rod 21, the force application rod section 114 and the operation rod section 113. As another embodiment, the moving rod 21 may be a solid structure, and the liner 30 may be inflated through other channels.

The whole fixed shaft sleeve (hollow rod structure 11) is a cylindrical structure with a through hole (long hole) in the middle, and the through hole is matched with the movable shaft (movable rod 21). The length of the elongated hole corresponds to the support state and the folded state of the support structure 22, i.e. the end of the elongated hole near the first end of the hollow bar structure corresponds to the folded state and the end of the elongated hole near the second end of the hollow bar structure 11 corresponds to the support state.

The fixed support end (force application rod section 114) is characterized in that one end of the fixed shaft sleeve is designed into a hexagonal structure, and the fixed shaft sleeve is clamped in a winding machine during use, so that the fixed support function is realized.

The shaft sleeve is provided with a limiting groove which is matched with a pull rod (convex column) of the moving shaft to limit the moving track of the moving shaft.

The valve seat 40 is composed of a disc-type or other-shaped limit baffle, a connecting thread with the valve seat, a transition section and a sealing groove, wherein an O-shaped ring is arranged in the sealing groove. The structure plays a role in connecting the valve seat of the bottle and sealing the inner container to prevent air leakage.

The supporting structure 22 is characterized in that a structure (pin shaft structure) for connecting supporting rods is designed at the other end of the fixed shaft sleeve, more than three supporting rods are designed for ensuring uniform stress in the inner container, the supporting rods are uniformly arranged in the circumferential direction of the fixed shaft sleeve, and the number of the supporting rod connecting structures (pin shaft structures) is consistent with that of the supporting rods.

The whole movable shaft (movable rod 21) is a cylindrical structure with a through hole in the middle and a pull rod with a vertical axis on the side wall, and the through hole is used for inflating the air bottle from the air tap of the winding machine.

The sleeve is limited, namely, one side of the movable shaft extending into the liner is provided with a sleeve ring limit for limiting the axial movement of the sleeve ring.

The sleeve is a thin metal cylinder of a certain length.

Connecting structures (pin shaft structures) for connecting the connecting rods are uniformly arranged in the circumferential direction of the sleeve, and the number of the connecting structures is the same as that of the connecting parts of the supporting rods.

The supporting rod is a long metal plate with different widths at two ends, pin shaft holes at two ends and semicircular at two ends. The sleeve is driven by the moving shaft, the connecting rod is driven by the sleeve the connecting rod drives the supporting rod the support rod moves to a designated position to press and support the inner side of the liner.

The connecting rod is a long metal plate with the same width at two ends and pin holes at two ends, and the two ends are processed into semicircle. Playing a role of pushing the supporting rod to move.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be capable of being practiced otherwise than as specifically illustrated and described. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A liner support tool, comprising:

-a stem block assembly (10), the stem block assembly (10) comprising a hollow stem structure (11) having an opening at a first end, the hollow stem structure (11) having a mating stem section (111) for sealing engagement with a valve seat (40);

A support rod assembly (20), wherein the support rod assembly (20) comprises a moving rod (21) and a supporting structure (22), a first end of the moving rod (21) is arranged in the hollow rod structure (11) in a penetrating mode, a second end of the moving rod (21) is located outside the hollow rod structure (11), a first end of the supporting structure (22) is fixed at the first end of the hollow rod structure (11), and a second end of the supporting structure (22) is located at the second end of the moving rod (21);

The moving rod (21) is movable in the axial direction of the hollow rod structure (11) to give the support structure (22) an open support state, or a collapsed folded state.

2. The liner support tool according to claim 1, wherein the hollow rod structure (11) further has a limit boss (112), the limit boss (112) being located on a side of the mating rod segment (111) near the second end of the hollow rod structure (11).

3. The liner support tool according to claim 2, wherein the hollow rod structure (11) further comprises an operation rod section (113) and a force application rod section (114), the force application rod section (114) forms a second end of the hollow rod structure (11), the operation rod section (113) is located between the force application rod section (114) and the limit boss (112), the operation rod section (113) has a long hole, the long hole extends along the axis direction of the hollow rod structure (11), the support rod assembly (20) further comprises an operation part (23), and the operation part (23) is arranged in the long hole in a penetrating manner and is connected with the moving rod (21).

4. A liner support tool according to claim 3, wherein the operating rod section (113) further has a fixing hole located at an end of the elongated hole near the urging rod section (114) and extending in a circumferential direction of the hollow rod structure (11).

5. A liner support tool according to claim 3, further comprising a first sealing structure (50), the first sealing structure (50) being disposed between the hollow stem structure (11) and the movable stem (21), and the first sealing structure (50) being located between the elongated aperture and the first end of the hollow stem structure (11).

6. The liner support tool according to claim 5, wherein the first sealing structure (50) comprises a first sealing ring, and the inner wall of the hollow rod structure (11) is provided with a first sealing groove, and the first sealing ring is partially located in the first sealing groove.

7. The liner support tool of claim 1, wherein the hollow stem structure (11) further comprises a sealing stem section (115), the sealing stem section (115) being located between the mating stem section (111) and the second end of the hollow stem structure (11), and the sealing stem section (115) having an outer diameter smaller than an outer diameter of the mating stem section (111), the liner support tool further comprising a second sealing structure located at the sealing stem section (115).

8. The liner support tool according to claim 1, further comprising a third sealing structure (60), the hollow rod structure (11) further comprising an operating rod section (113) and a force applying rod section (114), the force applying rod section (114) forming a second end of the hollow rod structure (11), the third sealing structure (60) being disposed within the operating rod section (113) between the first end of the moving rod (21) and the force applying rod section (114).

9. The liner support tool according to any one of claims 1 to 8, wherein the support structure (22) further comprises a plurality of support rods spaced circumferentially along the first end of the hollow rod structure (11), each support rod being a unitary resilient rod or each support rod being comprised of a plurality of rod segments.

10. The liner support tool according to claim 9, wherein when each of the support rods is comprised of a plurality of rod segments, the support rods comprise a first rod segment and a second rod segment, the first end of the first rod segment being rotatably connected to the outer wall of the first end of the hollow rod structure (11), the second end of the first rod segment being rotatably connected to the first end of the second rod segment, the second end of the second rod segment being rotatably connected to the second end of the movable rod (21).