CN212022319U - Anti-loosing fixing structure for gas cylinder - Google Patents
Anti-loosing fixing structure for gas cylinder Download PDFInfo
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- CN212022319U CN212022319U CN202020516561.8U CN202020516561U CN212022319U CN 212022319 U CN212022319 U CN 212022319U CN 202020516561 U CN202020516561 U CN 202020516561U CN 212022319 U CN212022319 U CN 212022319U
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Abstract
The utility model provides a locking fixed knot of gas cylinder constructs, wherein, the locking fixed knot of gas cylinder constructs includes: a gas cylinder support for supporting a gas cylinder; a steel band for mounting the gas cylinder to the gas cylinder holder; the spring base plate is used for being placed between the steel belt and the gas cylinder and/or between the gas cylinder and the gas cylinder bracket; the spring shim plate includes a base plate and an elastic plate having a middle portion fixed to the base plate via a joint, the elastic plate thereby forming a left elastic portion and a right elastic portion, the middle portions of both the left elastic portion and the right elastic portion being upwardly convex. The utility model discloses a locking fixed knot of gas cylinder constructs can the effective absorption gas cylinder at the inflation volume of inflating in-process diameter direction, and then realizes fastening, locking purpose of gas cylinder.
Description
Technical Field
The utility model belongs to the technical field of fuel cell, in particular to gas cylinder locking fixed knot constructs.
Background
In general, the hydrogen storage system for vehicles is formed by fixing a gas cylinder to a system bracket in a steel band bundling manner. According to the requirements of the technical conditions of the vehicle-mounted hydrogen system of the fuel cell electric vehicle in GB/T26990-. Therefore, the Chinese national standard GB/T26990-2011 has requirements on the tightness of the gas cylinder, and the requirements are reflected on the binding torque of the steel belt.
For example, referring to fig. 1, there is shown a conventional hydrogen storage system for vehicles, in which a cylinder 2 is directly fixed to a cylinder holder 1 in the form of a band 3. Based on the characteristics of the gas cylinder, in the process of charging the gas cylinder 2, along with the increase of the pressure, the volume of the gas cylinder becomes larger, which is reflected in the diameter of the gas cylinder 2 to a great extent; during deflation, the pressure is reduced and the diameter is correspondingly reduced. For example, the gas cylinder 2 fastens the fastening bolts 4 to 70N.m at both ends of the steel belt 3 under the condition of no pressure in the cylinder, and when the gas cylinder 2 is inflated to 35MPa, the tightening torque value of the fastening bolts 4 is increased to 130-150 N.m; after the air cylinder 2 is deflated to 0 pressure, the tightening torque value of the fastening bolt 4 is reduced to about 15-20 N.m.
Therefore, the tightening torque value of the fastening bolt will vary widely during the filling and the deflation of the gas cylinder. The gas cylinder is emptied after being charged, and the bolt tightening torque value is usually lower than the initial tightening value. Particularly, for the existing vehicular hydrogen storage system, under the condition that the bolt tightening torque is attenuated to be too low, the fastening of the gas cylinder cannot meet the requirement on the relative displacement of the gas cylinder in the national standard GB/T26990-2011 technical conditions of vehicular hydrogen systems of fuel cell electric vehicles, and the vehicular hydrogen storage system has hidden troubles.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses a defect to exist among the prior art provides the locking fixed knot of gas cylinder and constructs, the utility model discloses a locking fixed knot of gas cylinder constructs can effectively absorb the gas cylinder in the inflation in-process diametric expansion volume, and then realizes fastening, the locking purpose of gas cylinder.
The purpose of the utility model is realized through the following technical scheme.
The utility model provides a locking fixed knot of gas cylinder constructs, wherein, the locking fixed knot of gas cylinder constructs includes:
a gas cylinder support for supporting a gas cylinder;
a steel band for mounting the gas cylinder to the gas cylinder holder; and
the spring base plate is used for being placed between the steel belt and the gas cylinder and/or between the gas cylinder and the gas cylinder bracket; the spring shim plate includes a base plate and an elastic plate having a middle portion fixed to the base plate via a joint, the elastic plate thereby forming a left elastic portion and a right elastic portion, the middle portions of both the left elastic portion and the right elastic portion being upwardly convex.
Further, the anti-loosening fixing structure for the gas cylinder comprises 1 spring base plate, and the spring base plate is used for being placed between the steel belt and the gas cylinder or between the gas cylinder and the gas cylinder support.
Further, the gas cylinder anti-loosening fixing structure comprises 2 or more spring base plates, and the 2 or more spring base plates are used for being respectively placed between the steel belt and the gas cylinder and between the gas cylinder and the gas cylinder bracket.
Further, the intermediate portion of the elastic plate is fixed to the base plate via a plurality of joining points that are collinear and perpendicular to the longitudinal direction of the elastic plate, the elastic plate being divided into left and right elastic portions along its longitudinal direction by the plurality of joining points.
Further, the left elastic part and the right elastic part are circular arc-shaped in cross section along the length direction of the elastic plate.
Further, the gas cylinder anti-loosening fixing structure further comprises a fastening bolt, and two ends of the steel belt are connected to the gas cylinder support through the fastening bolt.
The utility model discloses a gas cylinder locking fixed knot constructs has following advantage:
(1) the utility model discloses an among the locking fixed knot of gas cylinder constructs, through increasing the spring backing plate to use with the steel band cooperation, can absorb the gas cylinder to a certain extent and aerify the inflation volume of in-process diameter direction, avoid the steel band plastic deformation to appear, thereby eliminate the condition that appears becoming flexible because of the steel band of gas cylinder is elongated.
(2) In the process of inflating and deflating the gas cylinder, the screwing torque value of the fastening bolt can be effectively controlled to be not lower than the preset torque value, and the requirements on the relative displacement of the gas cylinder in the national standard GB/T26990 and 2011 fuel cell electric vehicle-mounted hydrogen system technical condition can be met under any gas cylinder pressure condition only by the condition that the initial screwing torque of the steel belt meets the requirements.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a prior art gas cylinder mounting structure;
fig. 2 is a schematic structural view of an embodiment of the gas cylinder anti-loosening fixing structure of the present invention;
fig. 3 is a partial enlarged view of an embodiment of the gas cylinder looseness prevention fixing structure of the present invention;
FIG. 4 is a schematic structural view of one embodiment of a spring shim plate;
FIG. 5 is a schematic view of the spring shim plate during use; fig. 5(a) is a schematic view of a state of the spring bearing plate at the time of initial installation, fig. 5(b) is a schematic view of a state of the spring bearing plate after fastening, fig. 5(c) is a schematic view of a state of the spring bearing plate after inflation of the gas cylinder, and fig. 5(d) is a schematic view of a state of the spring bearing plate after inflation of the gas cylinder.
Wherein the figures include the following reference numerals:
1. a gas cylinder holder; 2. a gas cylinder; 3. a steel belt; 4. fastening a bolt; 5. a spring backing plate; 501. a substrate; 502. an elastic plate; 503. a junction; 504. a left elastic part; 505. and a right elastic part.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
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 example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The utility model provides a locking fixed knot of gas cylinder constructs, wherein, the locking fixed knot of gas cylinder constructs includes:
a gas cylinder support for supporting a gas cylinder;
a steel band for mounting the gas cylinder to the gas cylinder holder; and
the spring base plate is used for being placed between the steel belt and the gas cylinder and/or between the gas cylinder and the gas cylinder bracket; the spring shim plate includes a base plate and an elastic plate having a middle portion fixed to the base plate via a joint, the elastic plate thereby forming a left elastic portion and a right elastic portion, the middle portions of both the left elastic portion and the right elastic portion being upwardly convex.
Referring to fig. 1-4, the utility model discloses a gas cylinder locking fixed knot constructs including gas cylinder support 1, steel band 3 and spring backing plate 5.
The gas cylinder support 1 is used for supporting a gas cylinder 2, and the steel belt 3 is used for installing the gas cylinder 2 on the gas cylinder support 1. The spring backing plate 5 is used for being placed between the steel belt 3 and the gas cylinder 2 and/or between the gas cylinder 2 and the gas cylinder bracket 1; the spring plate 5 includes a base plate 501 and an elastic plate 502, an intermediate portion of the elastic plate 502 is fixed to the base plate 501 via a joint 503, the elastic plate 502 thereby forms a left elastic portion 504 and a right elastic portion 505, and the intermediate portions of both the left elastic portion 504 and the right elastic portion 505 are upwardly convex.
The present inventors have found that the reason for the attenuation of the tightening torque of the fastening bolt 4 in the conventional fastening structure shown in fig. 1 may be as follows: in the inflation process of the gas cylinder 2, the diameter of the gas cylinder 2 is increased, the parts such as the steel belt 3 are elastically deformed, and along with the continuous increase of the diameter of the gas cylinder 2, the parts such as the steel belt 3 break through the maximum amount of elastic deformation and then are irreversibly plastically deformed. In other words, the steel band 3 is elongated when the gas cylinder 2 is inflated, but is not completely restored after the deflation, thereby causing the tightening force of the gas cylinder 2 to be reduced and the tightening force of the tightening bolt 4 to be reduced.
Therefore, the utility model discloses a locking fixed knot of gas cylinder constructs is through increasing spring backing plate 5 to use with the cooperation of steel band 3, can absorb gas cylinder 2 to a certain extent and aerify the inflation volume of in-process diameter direction, avoid steel band 3 to appear plastic deformation, thereby eliminate because of the not hard up condition of appearance of the steel band 3 of gas cylinder is elongated, guarantee the reliability that gas cylinder 2 tied up to a certain extent, reach the locking purpose of gas cylinder fastening. In the process of inflating and deflating the gas cylinder 2, the screwing force (for example, the screwing torque value of the fastening bolt 4) can be effectively controlled to be not lower than a preset value, and the requirements on the relative displacement of the gas cylinder in Chinese national standard GB/T26990-2011 technical conditions of vehicle-mounted hydrogen systems of fuel cell electric vehicles can be met under any gas cylinder pressure condition only by initially fastening the steel strip to meet the requirements.
The utility model discloses an in the embodiment, the locking fixed knot of gas cylinder constructs includes 1 spring backing plate 5, and spring backing plate 5 is used for placing between steel band 3 and gas cylinder 2 or between gas cylinder 2 and gas cylinder support 1. For example, in the embodiment shown in fig. 2 and 3, the spring backer plate 5 is placed between the steel band 3 and the gas cylinder 2 and at the highest point of the gas cylinder 2. Of course, the spring plate 5 can be placed at other positions between the steel band 3 and the gas cylinder 2.
The utility model discloses an in one embodiment, the locking fixed knot of gas cylinder constructs includes 2 or more spring backing plates 5, and 2 or more spring backing plates 5 are used for placing respectively between steel band 3 and gas cylinder 2 and between gas cylinder 2 and gas cylinder support 1. Thereby, the provision of 2 or more spring shim plates 5 can further enhance the overall looseness prevention performance.
In one embodiment of the present invention, the elastic plate 502 may contact the steel band 3 and/or the gas cylinder holder 1; in yet another embodiment of the present invention, the elastic plate 502 may be in contact with the gas cylinder 2.
In one embodiment of the present invention, the middle portion of the elastic plate 502 is fixed to the base plate 501 via a plurality of joints 503, the joints 503 are collinear and perpendicular to the length direction of the elastic plate 502, and the elastic plate 502 is divided into a left elastic portion 504 and a right elastic portion 505 by the joints 503 along the length direction thereof. In the embodiment shown in fig. 4, 2 joints 503 are provided.
In an embodiment of the present invention, the cross section of the left elastic portion 504 and the right elastic portion 505 along the length direction of the elastic plate 502 is a circular arc.
In one embodiment of the present invention, high performance spring steel or other resilient material known in the art may be used to form the resilient plate 502.
In one embodiment of the present invention, similarly, high performance spring steel or other resilient materials known in the art may be employed to form the base plate 501. Thereby, the spring plate 5 (particularly, the base plate 501) is more closely attached to the gas cylinder 2 or the gas cylinder holder 1.
In one embodiment of the present invention, the joint 503 may be formed by welding, riveting, or the like.
In an embodiment of the present invention, the gas cylinder locking fixing structure further includes a fastening bolt 4, and both ends of the steel band 3 are connected to the gas cylinder support 1 via the fastening bolt 4.
In one embodiment of the present invention, the gas cylinder holder 1 has a concave surface that is form-fitted with the gas cylinder 2.
The anti-loosening fixing structure for the gas cylinder of the present invention is further described with reference to fig. 2 and 5. Place gas cylinder 2 on gas cylinder support 1, tie up gas cylinder 2 to gas cylinder support 1 through steel band 3 to installation spring backing plate 5 between gas cylinder 2 and steel band 3, 3 both ends of steel band use fastening bolt 4 to fasten.
As shown in fig. 5(a), when initially installed, the fastening bolt 4 is not yet fastened, and the maximum compressible amount of the spring plate 5 is 100%.
As shown in fig. 5(b), the spring plate 5 is compressed by 30% after the fastening bolt 4 is fastened to a fixed torque value.
As shown in fig. 5(c), during inflation of the gas cylinder 2, the spring seat 5 continues to be compressed, which is a process in which the spring seat 5 absorbs the amount of diametrical expansion of the gas cylinder 2. After the gas cylinder 2 is inflated to the rated working pressure, the spring back plate 5 can be compressed by 60% -80%.
As shown in fig. 5(d), during the deflation of the gas cylinder 2, the spring plate 5 starts to rebound, and after the gas cylinder 2 is vented to 0, it returns to a state of being compressed by 30%.
In addition, the amount of compression of the spring plate 5 can be measured from the (circular arc) height of the elastic plate 502. Also, the amount of compression of the spring plate 5 can be determined as desired by adjusting the material and/or thickness of the elastic plate 502.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "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 of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. Locking fixed knot of gas cylinder constructs, its characterized in that, the locking fixed knot of gas cylinder constructs includes:
the gas cylinder support (1), the gas cylinder support (1) is used for supporting a gas cylinder (2);
a steel band (3), the steel band (3) being used for mounting the gas cylinder (2) on the gas cylinder support (1); and
the spring base plate (5) is used for being placed between the steel belt (3) and the gas cylinder (2) and/or between the gas cylinder (2) and the gas cylinder bracket (1); the spring plate (5) comprises a base plate (501) and an elastic plate (502), wherein the middle part of the elastic plate (502) is fixed on the base plate (501) through a joint (503), the elastic plate (502) forms a left elastic part (504) and a right elastic part (505), and the middle parts of the left elastic part (504) and the right elastic part (505) are upwards convex.
2. The gas cylinder anti-loosening fixing structure according to claim 1, characterized by comprising 1 spring base plate (5), wherein the spring base plate (5) is used for being placed between the steel belt (3) and the gas cylinder (2) or between the gas cylinder (2) and the gas cylinder bracket (1).
3. The gas cylinder anti-loosening fixing structure according to claim 1, characterized by comprising 2 or more spring base plates (5), the 2 or more spring base plates (5) being for being placed between the steel band (3) and the gas cylinder (2) and between the gas cylinder (2) and the gas cylinder holder (1), respectively.
4. A gas cylinder looseness-prevention fixing structure according to any one of claims 1 to 3, wherein an intermediate portion of said elastic plate (502) is fixed to said base plate (501) via a plurality of joint points (503), said plurality of joint points (503) being collinear and perpendicular to a length direction of said elastic plate (502), said elastic plate (502) being divided by said plurality of joint points (503) into a left elastic portion (504) and a right elastic portion (505) along the length direction thereof.
5. The gas cylinder looseness-prevention fixing structure according to claim 4, wherein a cross section of the left elastic portion (504) and the right elastic portion (505) in a length direction of the elastic plate (502) is a circular arc shape.
6. A gas cylinder looseness-prevention fixing structure according to any one of claims 1 to 3, further comprising a fastening bolt (4), both ends of said steel band (3) being connected to said gas cylinder holder (1) via said fastening bolt (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020516561.8U CN212022319U (en) | 2020-04-10 | 2020-04-10 | Anti-loosing fixing structure for gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020516561.8U CN212022319U (en) | 2020-04-10 | 2020-04-10 | Anti-loosing fixing structure for gas cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN212022319U true CN212022319U (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020516561.8U Active CN212022319U (en) | 2020-04-10 | 2020-04-10 | Anti-loosing fixing structure for gas cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998580A (en) * | 2021-10-19 | 2022-02-01 | 河南平高电气股份有限公司 | Gas cylinder hoist and mount auxiliary fixtures |
-
2020
- 2020-04-10 CN CN202020516561.8U patent/CN212022319U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113998580A (en) * | 2021-10-19 | 2022-02-01 | 河南平高电气股份有限公司 | Gas cylinder hoist and mount auxiliary fixtures |
| CN113998580B (en) * | 2021-10-19 | 2024-05-24 | 河南平高电气股份有限公司 | Auxiliary tool for hoisting gas cylinders |
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