CN105952890B - A kind of frangible protection cap structure of the big positive and negative pressure of frame type - Google Patents
A kind of frangible protection cap structure of the big positive and negative pressure of frame type Download PDFInfo
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- CN105952890B CN105952890B CN201610487998.1A CN201610487998A CN105952890B CN 105952890 B CN105952890 B CN 105952890B CN 201610487998 A CN201610487998 A CN 201610487998A CN 105952890 B CN105952890 B CN 105952890B
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- China
- Prior art keywords
- lid
- negative pressure
- frangible
- protection cap
- end frame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J13/00—Covers or similar closure members for pressure vessels in general
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
The invention discloses a kind of frangible protection cap structure of the big positive and negative pressure of frame type, including holding frame, the side of the end frame is provided with lid, the lid is outstanding ellipsoid, the convex surface and concave surface of the ellipsoid are respectively used to bear malleation and negative pressure, the malleation is more than three times of the negative pressure, wherein, the concave surface center of the lid to the bottom side close to the end frame is symmetrically provided with multiple enhancement layers gradually thickeied, the inner concave surface diagonal angle of the lid, on four sides of the end frame, the first to the 3rd reduction groove is respectively equipped with surrounding corner, the depth of described first to the 3rd reduction groove is different.The present invention solves the frangible protection cap structure design problem that positive/negative-pressure differs more than 3 times.
Description
Technical field
The present invention relates to frangible protection cap technical field, more particularly to a kind of frangible protection cap knot of the big positive and negative pressure of frame type
Structure.
Background technology
Traditional system for having frangible protection cap opens frangible protection cap using mechanical system, blasting method is opened easily
Broken protection cap, as long as this frangible protection cap design meets negative pressure index can, design is simple, but whole system operation is multiple
Miscellaneous, poor reliability.To make faster system response, simple to operate, modern frangible protection cap is opened easy using certain pressure high-speed gas
Broken lid, but this pressure has certain limit, that is, require that frangible protection cap crushes under limited positive pressure, but
Frangible protection cap stands intact in the case of negative pressure is more than malleation certain value, if it is desired to negative pressure is within 2 times of malleation, frangible protection cap
Design is easier to, at present extensive use, but requires that design negative pressure is 3 times of malleation above is frangible protection cap design at present is difficult
Topic, it is necessary to which innovative design is carried out to frangible protection cap structure.
The content of the invention
The present invention mainly solves the technical problem in the presence of prior art, meets that positive/negative-pressure differs so as to provide one kind
The frangible protection cap structure of the big positive and negative pressure of frame type of more than 3 times of requirement.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
The frangible protection cap structure of the big positive and negative pressure of frame type provided by the invention, including end frame, the side of the end frame is set
There is lid, the lid is outstanding ellipsoid, and the convex surface and concave surface of the ellipsoid are respectively used to bear malleation and born
Pressure, the malleation are more than three times of the negative pressure, wherein, the concave surface center of the lid is symmetrical to the bottom side close to the end frame
Be provided with multiple enhancement layers gradually thickeied, the inner concave surface diagonal angle of the lid, the end frame four sides on, surrounding
The first to the 3rd reduction groove is respectively equipped with corner, the depth of the described first to the 3rd reduction groove is different.
Further, the lid is in contact in one side with the end frame and is additionally provided with supporting surface, and is also set on the end frame
There is press box, the press box is used to the supporting surface of the lid being locked at the end frame.
Further, the height of the lid and thickness are respectively 195mm and 29mm.
Further, the depth of the first to the 3rd reduction groove is respectively 10mm, 6mm and 19mm, and described first, the
The trench angles of two reduction grooves are 60 °
Further, the malleation and negative pressure are respectively 90kPa and 280kPa.
The beneficial effects of the present invention are：By the way that lid to be designed to outstanding ellipsoid, gas pressure is changed
In the convex surface action mode of ellipsoid, be advantageous to the uniform force of lid；And at the concave surface center of lid to close to end frame
Bottom side is provided with the enhancement layer that gradually thickeies, plays anti-suction function, by positive effect after experiment, meanwhile, by design first to
3rd reduction groove, it ensure that lid weakens groove in positive pressure lower edge first to the 3rd and crushed.The present invention solves just
Negative pressure differs more than 3 times of frangible protection cap structure design problem.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the frangible protection cap structure of the big positive and negative pressure of frame type of the present invention；
Fig. 2 is the left view of the frangible protection cap structure of the big positive and negative pressure of frame type of the present invention.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
Refering to shown in Fig. 1-2, the frangible protection cap structure of the big positive and negative pressure of frame type of the invention, including end frame 1, hold frame 1
Side be provided with lid 2, lid 2 is outstanding ellipsoid, the convex surface and concave surface of ellipsoid be respectively used to bear malleation and
Negative pressure, malleation are more than three times of negative pressure, wherein, the concave surface center of lid 2 to close to the bottom side of end frame 1 be symmetrically provided with it is multiple by
The enhancement layer 3 gradually thickeied, the inner concave surface diagonal angle of lid 2, hold the is respectively equipped with four sides of frame 1, on surrounding corner 4
One to the 3rd reduction groove (5-7), the depth of the first to the 3rd reduction groove (5-7) are different.
The present invention changes gas pressure on the convex surface of ellipsoid by the way that lid 2 to be designed to outstanding ellipsoid
Action mode, be advantageous to the uniform force of lid；And it is provided with gradually thickening to close to the bottom side of end frame 1 at the center of lid 2
Enhancement layer 3, play anti-suction function, by positive effect after experiment, meanwhile, pass through the reduction of design first to the 3rd groove (5-
7) it, ensure that lid 2 weakens groove (5-7) in positive pressure lower edge first to the 3rd and crushed.The present invention solves positive/negative-pressure
The frangible protection cap structure design problem that more than 3 times of difference.
Specifically, in order to improve lid 2 and hold the fastness that be connected of frame 1, avoid releasing, lid 2 is in contact one with holding frame 1
Supporting surface 8 is additionally provided with face, and holds and press box 9 is additionally provided with frame 1, press box 9 is used to the supporting surface 8 of lid 2 being locked at end frame.
Wherein, locking mode can be adopted and is tightened by bolts, and facilitate disassembly and installation.
In the present invention, the height and thickness of lid 2 are respectively 195mm and 29mm, (parameter a=namely in elliptic equation
500mm, b=360mm).The depth of first to the 3rd reduction groove (5-7) is respectively 10mm, 6mm and 19mm, and first, the
The trench angles of two reduction grooves (5,6) are 60 °, and malleation and negative pressure are respectively 90kPa and 280kPa.
The elliptic arc equation such as formula (1) of lid 2.
Verified by ground slow test, be specifically divided into positive pressure test and negative pressure test.Result of the test meets to require.
More than, be only the present invention embodiment, but protection scope of the present invention is not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should be all included within the scope of the present invention.Therefore, protection of the invention
Scope should be determined by the scope of protection defined in the claims.
Claims (4)
1. a kind of frangible protection cap structure of the big positive and negative pressure of frame type, including end frame, the side of the end frame are provided with lid, it is special
Sign is that the lid is outstanding ellipsoid, and the convex surface and concave surface of the ellipsoid are respectively used to bear malleation and born
Pressure, the malleation are more than three times of the negative pressure, wherein, the concave surface center of the lid is symmetrical to the bottom side close to the end frame
Be provided with multiple enhancement layers gradually thickeied, the inner concave surface diagonal angle of the lid, the end frame four sides on, surrounding
The first to the 3rd reduction groove is respectively equipped with corner, the depth of the described first to the 3rd reduction groove is different；
The lid is in contact in one side with the end frame and is additionally provided with supporting surface, and press box, the pressure are additionally provided with the end frame
Frame is used to the supporting surface of the lid being locked at the end frame；
The elliptic arc equation such as formula (1) of the lid.
2. the frangible protection cap structure of the big positive and negative pressure of frame type as claimed in claim 1, it is characterised in that the height of the lid
Degree and thickness are respectively 195mm and 29mm.
3. the frangible protection cap structure of the big positive and negative pressure of frame type as claimed in claim 2, it is characterised in that first to the 3rd is weak
The depth for changing groove is respectively 10mm, 6mm and 19mm, and the trench angles of the first, second reduction groove are 60 °.
4. the frangible protection cap structure of the big positive and negative pressure of frame type as claimed in claim 3, it is characterised in that the malleation and negative
Pressure is respectively 90kPa and 280kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487998.1A CN105952890B (en) | 2016-06-29 | 2016-06-29 | A kind of frangible protection cap structure of the big positive and negative pressure of frame type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610487998.1A CN105952890B (en) | 2016-06-29 | 2016-06-29 | A kind of frangible protection cap structure of the big positive and negative pressure of frame type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105952890A CN105952890A (en) | 2016-09-21 |
| CN105952890B true CN105952890B (en) | 2018-01-30 |
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ID=56902400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610487998.1A Active CN105952890B (en) | 2016-06-29 | 2016-06-29 | A kind of frangible protection cap structure of the big positive and negative pressure of frame type |
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| CN (1) | CN105952890B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4498368A (en) * | 1983-10-06 | 1985-02-12 | The United States Of America As Representedby The Secretary Of The Navy | Frangible fly through diaphragm for missile launch canister |
| TW200622180A (en) * | 2004-12-22 | 2006-07-01 | Chung Shan Inst Of Science | Structure of front end cover made of fiber reinforced plastics (FRP) |
| CN1844839A (en) * | 2006-04-30 | 2006-10-11 | 南京航空航天大学 | Integral impacting type composite canister cover |
| CN203769488U (en) * | 2014-02-25 | 2014-08-13 | 郑州宇通客车股份有限公司 | School bus emergency door and door lock externally-opening protection cover thereof |
| CN205780831U (en) * | 2016-06-29 | 2016-12-07 | 贵州航天天马机电科技有限公司 | A kind of protection cap |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002022396A (en) * | 2000-07-07 | 2002-01-23 | Mitsubishi Heavy Ind Ltd | Rear caver guide device and canister for flying object |
-
2016
- 2016-06-29 CN CN201610487998.1A patent/CN105952890B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4498368A (en) * | 1983-10-06 | 1985-02-12 | The United States Of America As Representedby The Secretary Of The Navy | Frangible fly through diaphragm for missile launch canister |
| TW200622180A (en) * | 2004-12-22 | 2006-07-01 | Chung Shan Inst Of Science | Structure of front end cover made of fiber reinforced plastics (FRP) |
| CN1844839A (en) * | 2006-04-30 | 2006-10-11 | 南京航空航天大学 | Integral impacting type composite canister cover |
| CN203769488U (en) * | 2014-02-25 | 2014-08-13 | 郑州宇通客车股份有限公司 | School bus emergency door and door lock externally-opening protection cover thereof |
| CN205780831U (en) * | 2016-06-29 | 2016-12-07 | 贵州航天天马机电科技有限公司 | A kind of protection cap |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105952890A (en) | 2016-09-21 |
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