CN207621677U - A kind of gas returning port with self-locking type omnibearing protection function - Google Patents
A kind of gas returning port with self-locking type omnibearing protection function Download PDFInfo
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- CN207621677U CN207621677U CN201721766284.0U CN201721766284U CN207621677U CN 207621677 U CN207621677 U CN 207621677U CN 201721766284 U CN201721766284 U CN 201721766284U CN 207621677 U CN207621677 U CN 207621677U
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- gas returning
- returning port
- self
- guide groove
- upper cover
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Abstract
The utility model is related to a kind of gas returning ports with self-locking type omnibearing protection function, including protective cover, gas returning port ontology；The protective cover is divided into upper cover body, lower cover；The guide groove and the vertically disposed limiting slot of guide groove that Open Side Down are provided on the lower cover；The limiting slot is connected with guide groove；The guide groove, limiting slot are matched with the bolt of gas returning port ontology；It is provided with venthole at the top of the upper cover body, convex top is provided in the upper cover body, the convex top is the hollow cylindrical configuration penetrated through with venthole；The convex top outer wall is provided with helical groove structure, and the helical groove structure is flexibly connected with spring.The structure of the utility model ensure that protective cover will not fall off；Most of gas returning port body outer surface and bolt can be effectively protected；Installation, convenient disassembly, strong applicability, for ease of maintenaince.
Description
Technical field
The utility model is related to liquefied natural gas special equipment gas returning port fields, and in particular to one kind is entirely square with self-locking type
The gas returning port of position defencive function.
Background technology
World today's environmental requirement greatly improves, clean energy resource --- and liquefied natural gas is more and more favored, as one
Kind cleaning, the efficient energy, liquefied natural gas have the characteristics that saving storage and transportation space, calorific value is big, performance is high, all over the world naturally
Ratio of the gas in energy supply increases sharply.We are known as low temperature cylinder to the device of common storage and transportation liquefied natural gas,
The process of its return-air into low temperature cylinder when liquid feeding is realized by return-air mouth structure, therefore low temperature gas returning port performance is good
The bad safety for directly affecting liquefied natural gas bottle complete equipment, this is with regard to very it is necessary to install protection cap additional to gas returning port to carry out
Protection.If unprotect lid or protection cap fall off, gas returning port valve shaft, spool and gas returning port flange valve head outer surface are all easy to be knocked
Scuffing is touched, gas returning port is caused to be scrapped, the service life substantially reduces.
It has the disadvantage that in the prior art：(1) the dustproof protective cover protected area of gas returning port is small.(2) gas returning port is transporting
It is easy to the loss that voluntarily falls off in the process.(3) for many producers that prevent from falling off O-ring seal is installed additional in the inner wall of protection cap, but
This causes protection cap more difficult on gas returning port again, dismantles after installing and also causes high effort for, and increases the processing of protection cap
Cost.(4) it repeatedly facts have proved that gas returning port bolt also can be there is a phenomenon where loose or dislocation after multiple impacts, but current protection
Lid can not be effectively protected gas returning port bolt.
Utility model content
The purpose of the utility model is to overcome defects of the existing technology, provide one and carry self-locking type omnibearing protection work(
The gas returning port of energy, ensure that protective cover will not fall off；Most of gas returning port body outer surface and bolt can be carried out effective
Protection；Installation, convenient disassembly, strong applicability, for ease of maintenaince.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of gas returning port with self-locking type omnibearing protection function, including protective cover, gas returning port ontology；The protection
Lid is divided into upper cover body, lower cover；The guide groove and the vertically disposed limit of guide groove that Open Side Down are provided on the lower cover
Position slot；The limiting slot is connected with guide groove；The guide groove, limiting slot are matched with the bolt of gas returning port ontology.
As priority, be provided with venthole at the top of the upper cover body, when for installing protective cover by gas returning port ontology and
Remaining air discharge, mitigates installation resistance between protective cover.
As priority, convex top is provided in the upper cover body, the convex top is the hollow cylindrical configuration penetrated through with venthole；
The convex top outer wall is provided with helical groove structure, and the helical groove structure is flexibly connected with spring.
As priority, the lower cover diameter is more than upper cover body；The connection plane and return-air of the upper cover body and lower cover
The boss sealing cooperation of mouth ontology.
As priority, the limiting slot is equal with well width is oriented to.
As priority, it is provided with connection ring at the top of the upper cover body.
Operation principle：
When needing to be installed to protective cover on gas returning port ontology, first the bolt of guide groove and gas returning port ontology is aligned,
So that bolt is reached limiting slot by guide groove, then rotate protective cover, by the cooperation of limiting slot and bolt to protective cover into
Row limit is fixed；The spring one end of protective cover is resisted by the end face of gas returning port ontology, and spring is in confined state, to protection
There are one reversed elastic force, a pair of of equilibrant force of fastening force composition of reversed elastic force and bolt self-locking is formed, to ensure for lid
Protective cover will not fall off.
When needing to remove protective cover, screwing protective cover makes bolt be aligned with guide groove, due to the restoring force of spring
It can automatically spring open, remove protective cover.
The beneficial effects of the utility model are：
(1) bolt is utilized to realize that the installation of protective cover, limit are fixed；The fastening force of reversed elastic force and bolt constitutes one
To equilibrant force, self-locking is formed, to ensure that protective cover will not fall off.
(2) compared with existing gas returning port protection cap, the protected area of gas returning port ontology is considerably increased, effectively prevent abrading
Or collide with, while bolt is protected, it is allowed to during transport and use from colliding with.
(3) upper cover body coordinates with the connection plane of lower cover and the boss sealing of gas returning port ontology, substitutes original O-shaped sealing
Circle, can effectively prevent foreign matter to enter, solve the problems, such as that the protection cap with O-ring seals is difficult to mount and dismount.
(4) convex top outer wall is provided with helical groove structure, and helical groove structure is flexibly connected with spring；By spring precession when installation
Helical groove structure ensure that spring will not fall off or shake everywhere.It, can will be former when use for a long time leads to spring effect reduction
The rotation of old spring is unloaded, change same model new spring can normal use, it is economical and laborsaving without replacing entire protection cap.
Description of the drawings
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is a kind of gas returning port structural schematic diagram with self-locking type omnibearing protection function；
Fig. 2 is protective cover structural schematic diagram；
Fig. 3 is protective cover semi-cutaway (no spring)；
Fig. 4 is protective cover semi-cutaway (having spring)；
Fig. 5 is a kind of gas returning port semi-cutaway with self-locking type omnibearing protection function.
Wherein：1, protective cover；2, guide groove；3, limiting slot；4, venthole；5, connection ring；6, convex top；7, spring；8、
Upper cover body；9, lower cover；10, helical groove structure；11, gas returning port ontology；12, bolt.
Specific implementation mode
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be more easy to be understood by those skilled in the art with feature, to make apparent specific boundary to the scope of protection of the utility model
It is fixed.
As shown in Figures 1 to 5, the embodiments of the present invention include：
A kind of gas returning port with self-locking type omnibearing protection function, including protective cover 1, gas returning port ontology 11；It is described
Protective cover 1 is divided for upper cover body 8, lower cover 9；It is provided with the guide groove 2 that Open Side Down on the lower cover 9, hangs down with guide groove 2
The limiting slot 3 being directly arranged；The limiting slot 3 is connected with guide groove 2；The guide groove 2, limiting slot 3 and gas returning port ontology 11
Bolt 12 match.
8 top of the upper cover body is provided with venthole 4, by gas returning port ontology 11 and protection when for installing protective cover 1
Remaining air discharge, mitigates installation resistance between lid 1.
Convex top 6 is provided in the upper cover body 8, the convex top 6 is the hollow cylindrical configuration penetrated through with venthole 4；It is described
6 outer walls of convex top are provided with helical groove structure 10, and the helical groove structure 10 is flexibly connected with spring 7.
9 diameter of the lower cover is more than upper cover body 8；The connection plane and gas returning port ontology of the upper cover body 8 and lower cover 9
11 boss sealing cooperation.
The limiting slot 3 is equal with 2 width of guide groove.
8 top of the upper cover body is provided with connection ring 5.
Operation principle：
When needing to be installed to protective cover 1 on gas returning port ontology 11, first by the bolt of guide groove 2 and gas returning port ontology 11
12 alignment, make bolt 12 reach limiting slot 3 by guide groove 2, then rotate protective cover 1, pass through matching for limiting slot 3 and bolt 12
Conjunction fixes protective cover 1；7 one end of spring of protective cover 1 is resisted by the end face of gas returning port ontology 11, spring 7
In confined state, to protective cover 1 there are one reversed elastic force, the fastening force of reversed elastic force and bolt 12 constitutes a pair
Equilibrant force forms self-locking, to ensure that protective cover 1 will not fall off.
When needing to remove protective cover 1, screwing protective cover 1 makes bolt 12 be aligned with guide groove 2, due to spring 7
Restoring force can automatically spring open, and remove protective cover 1.
It should be appreciated that specific embodiment described above is only used for explaining the utility model, it is not used to limit this reality
With novel.By the utility model the obvious changes or variations extended out of spirit still in the utility model protection
Among range.
Claims (6)
1. a kind of gas returning port with self-locking type omnibearing protection function, it is characterised in that：Including protective cover, gas returning port sheet
Body；The protective cover is divided into upper cover body, lower cover；The guide groove and guide groove that Open Side Down are provided on the lower cover
Vertically disposed limiting slot；The limiting slot is connected with guide groove；The bolt of the guide groove, limiting slot and gas returning port ontology
It matches.
2. a kind of gas returning port with self-locking type omnibearing protection function according to claim 1, it is characterised in that：It is described
It is provided with venthole at the top of upper cover body.
3. a kind of gas returning port with self-locking type omnibearing protection function according to claim 2, it is characterised in that：It is described
Convex top is provided in upper cover body, the convex top is the hollow cylindrical configuration penetrated through with venthole；The convex top outer wall is provided with spiral shell
Spin slot structure, the helical groove structure are flexibly connected with spring.
4. a kind of gas returning port with self-locking type omnibearing protection function according to claim 3, it is characterised in that：It is described
Lower cover diameter is more than upper cover body；The upper cover body coordinates with the connection plane of lower cover and the boss sealing of gas returning port ontology.
5. a kind of gas returning port with self-locking type omnibearing protection function according to claim 3, it is characterised in that：It is described
Limiting slot is equal with well width is oriented to.
6. a kind of gas returning port with self-locking type omnibearing protection function according to claim 3, it is characterised in that：It is described
It is provided with connection ring at the top of upper cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721766284.0U CN207621677U (en) | 2017-12-18 | 2017-12-18 | A kind of gas returning port with self-locking type omnibearing protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721766284.0U CN207621677U (en) | 2017-12-18 | 2017-12-18 | A kind of gas returning port with self-locking type omnibearing protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207621677U true CN207621677U (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721766284.0U Active CN207621677U (en) | 2017-12-18 | 2017-12-18 | A kind of gas returning port with self-locking type omnibearing protection function |
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| Country | Link |
|---|---|
| CN (1) | CN207621677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453222A (en) * | 2020-04-30 | 2020-07-28 | 上海建桥学院 | End cover part with spiral groove and five-axis linkage machine tool numerical control machining method thereof |
-
2017
- 2017-12-18 CN CN201721766284.0U patent/CN207621677U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453222A (en) * | 2020-04-30 | 2020-07-28 | 上海建桥学院 | End cover part with spiral groove and five-axis linkage machine tool numerical control machining method thereof |
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