CN211574247U - Sealing device for propellant powder drying equipment - Google Patents
Sealing device for propellant powder drying equipment Download PDFInfo
- Publication number
- CN211574247U CN211574247U CN201922477286.3U CN201922477286U CN211574247U CN 211574247 U CN211574247 U CN 211574247U CN 201922477286 U CN201922477286 U CN 201922477286U CN 211574247 U CN211574247 U CN 211574247U
- Authority
- CN
- China
- Prior art keywords
- sealing
- propellant powder
- seal groove
- sealing device
- packing ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 61
- 238000001035 drying Methods 0.000 title claims abstract description 34
- 239000003380 propellant Substances 0.000 title claims abstract description 25
- 239000000843 powder Substances 0.000 title claims abstract description 18
- 229920001971 elastomer Polymers 0.000 claims abstract description 29
- 238000012856 packing Methods 0.000 claims abstract description 12
- 229920001973 fluoroelastomer Polymers 0.000 claims description 7
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 5
- 239000003721 gunpowder Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The utility model belongs to the gunpowder field, concretely relates to high sealing device for propellant powder drying equipment, including fixing the sealed piece on the drying cabinet, be equipped with the seal groove on the sealed piece, this seal groove is located the below of case lid, the seal groove cross-section is trapezoidal, and is equipped with in the seal groove and is used for sealed rubber packing ring, rubber packing ring's top is equipped with two humps at least. When the propellant powder needs to be dried, after the box cover is covered, the box cover is pressed downwards to enable the rubber gasket to deform, so that the sealing washer can form two linear contacts with the sealing groove after being elastically deformed by being pressed, and the sealing washer and the box cover also form linear contact; therefore, the traditional gasket is changed into linear contact from surface contact before being contacted with equipment, good sealing can be formed without accurate surface precision, the sealing performance is good, and the processing requirement on drying equipment is reduced.
Description
Technical Field
The utility model belongs to the gunpowder field, concretely relates to high sealing device is used to propellant powder drying equipment.
Background
The propellant charge, typically powder, is contained within the bore of a firearm to fire the projectiles. After being ignited by flame or spark, the bullet can not explode under normal conditions, can only detonate to quickly generate high-heat gas, and has enough pressure to enable the bullet to be launched out at a certain speed without damaging the bore wall.
After the preparation of the raw materials of flammable and combustible media such as propellant, alcohol and other impurity components exist, so that the quality of the medicine is ensured. In the subsequent process, a drying device is needed to separate and clean impurities in the medicine. The tightness of the drying device directly influences the production quality of the propellant powder.
The existing sealing device is usually sealed in a mode of matching a sealing groove with a sealing washer, in order to ensure the sealing property, the requirement on the precision of the processing surface of a metal structural part of drying equipment is high, the machining difficulty is high, the economic cost is high, and the sealing property is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a propellant powder drying equipment that sealing performance is good uses high sealing device to reduce the processing requirement to drying equipment.
In order to reach above-mentioned purpose, this scheme provides a sealing device for propellant powder drying equipment, including fixing the seal block on the drying cabinet, be equipped with the seal groove on the seal block, this seal groove is located the below of case lid, the seal groove cross-section is trapezoidal, and is equipped with in the seal groove and is used for sealed rubber packing ring, rubber packing ring's top is equipped with two humps at least.
The principle and the beneficial effect of the scheme are that: when the propellant powder needs to be dried, after the box cover is covered, the box cover is pressed downwards to enable the rubber gasket to deform, so that the sealing washer can form two linear contacts with the sealing groove after being elastically deformed by being pressed, and the sealing washer and the box cover also form linear contact; therefore, the traditional gasket is changed into linear contact from surface contact before being contacted with equipment, good sealing can be formed without accurate surface precision, the sealing performance is good, and the processing requirement on drying equipment is reduced.
Further, the inside of rubber packing ring is equipped with the piece of breathing in, the piece of breathing in is located the lower part of rubber packing ring, and the lower part of rubber packing ring is equipped with the through-hole with external intercommunication. When the box cover is opened, the air suction block is in a relaxed state and can absorb air in the sealing groove; when the box cover is closed, the rubber gasket is extruded, the air suction block is further extruded, and therefore high pressure is formed at the bottom of the sealing groove. Therefore, air or moisture outside or in the drying box can be effectively prevented from entering the sealing groove to form isolation, and the sealing performance of the whole equipment is improved.
Furthermore, the angle formed by the extension line of the waist line of the sealing groove is 17-32 degrees. Through tests, the sealing performance of the equipment at the angle is better.
Further, an angle formed by an extension line of a waist line of the seal groove is 23 °.
Further, the rubber gasket is in a double-hump or triple-hump type.
Further, the rubber gasket is made of fluororubber. The fluororubber has good elasticity and high temperature resistance, is particularly suitable for the sealing environment of propellant drying equipment, and has good sealing effect and long service life.
Drawings
Fig. 1 is a plan view of the propellant drying apparatus.
Fig. 2 is a schematic diagram of the prior art.
Fig. 3 is a schematic view of a sealing device for the propellant drying apparatus of the present embodiment.
Fig. 4 is an enlarged view at I in fig. 2.
Fig. 5 is an enlarged view at II in fig. 3.
Fig. 6 is a schematic view of the rubber gasket of fig. 3.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: drying cabinet 10, case lid 20, sealing block 30, rubber gasket 31, fluororubber 301, suction block 302.
As shown in fig. 1, the propellant drying apparatus according to the policy is basically as shown in the figure, and mainly includes two parts, namely a drying box 10 and a box cover 20, and when drying propellant, the sealing performance should be ensured as much as possible to improve the production quality of propellant. As shown in fig. 2 and 4, the conventional sealing device mainly includes a sealing block 30 disposed on the drying box 10, and the sealing block 30 is located between the drying box 10 and the box cover 20. The sealing block 30 is provided with a rectangular sealing groove, and a gasket with a rectangular cross section is arranged in the rectangular sealing groove and used for sealing.
The difference between the present solution and the prior art is that, as shown in fig. 3 and 5, the sealing groove is trapezoidal, and the angle formed by the extension line of the waist line of the sealing groove is 23 °, and of course, 17-32 ° is all possible. Correspondingly, the rubber gasket is arranged in a double-hump shape, although a three-hump and a four-hump shape are also feasible, but the double-hump or the three-hump is most reasonable from the production point of view. As shown in fig. 6, the rubber gasket is made of fluororubber 301 as a whole, and a suction block 302 is provided inside the rubber gasket, the suction block 302 is located at the lower portion of the rubber gasket, and the lower portion of the rubber gasket is provided with a through hole communicating with the outside. The rubber gasket is made of fluororubber 301. The fluororubber 301 has good elasticity and high temperature resistance, is particularly suitable for the sealing environment of propellant powder drying equipment, and has good sealing effect and long service life.
When the propellant powder needs to be dried, after the box cover 20 is covered, the box cover 20 is pressed downwards to enable the rubber gasket to deform, so that the sealing gasket can form two linear contacts with the sealing groove after being elastically deformed under the pressure, and the sealing gasket and the box cover 20 also form the linear contact; therefore, the traditional gasket is changed into linear contact from surface contact before being contacted with equipment, good sealing can be formed without accurate surface precision, the sealing performance is good, and the processing requirement on drying equipment is reduced.
When the box cover 20 is opened, the air suction block 302 is in a relaxed state and can absorb air in the sealing groove; when the cover 20 is closed, the rubber gasket is pressed to press the suction block 302, so that the gas in the suction block 302 is squeezed out, and a higher pressure is formed at the bottom of the sealing groove. Therefore, air or moisture outside or in the drying box 10 can be effectively prevented from entering the sealing groove to form isolation, and the sealing performance of the whole equipment is improved.
It should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. Sealing device for propellant powder drying equipment, including fixing the sealed piece on the drying cabinet, be equipped with the seal groove on the sealed piece, this seal groove is located the below of case lid, its characterized in that: the seal groove cross-section is trapezoidal, and is equipped with the rubber packing ring that is used for sealed in the seal groove, the top of rubber packing ring is equipped with two humps at least.
2. The sealing device for propellant powder drying apparatus according to claim 1, wherein: the inside of rubber packing ring is equipped with the piece of breathing in, the piece of breathing in is located the lower part of rubber packing ring, and the lower part of rubber packing ring is equipped with the through-hole with external intercommunication.
3. The sealing device for propellant powder drying apparatus according to claim 1, wherein: the angle formed by the extension line of the waist line of the sealing groove is 17-32 degrees.
4. The sealing device for propellant powder drying apparatus according to claim 3, wherein: the angle formed by the extension line of the waist line of the sealing groove is 23 degrees.
5. The sealing device for propellant powder drying apparatus according to claim 1, wherein: the rubber gasket is in a double-hump or triple-hump type.
6. The sealing device for propellant powder drying apparatus according to claim 1, wherein: the rubber gasket is made of fluororubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922477286.3U CN211574247U (en) | 2019-12-31 | 2019-12-31 | Sealing device for propellant powder drying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922477286.3U CN211574247U (en) | 2019-12-31 | 2019-12-31 | Sealing device for propellant powder drying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211574247U true CN211574247U (en) | 2020-09-25 |
Family
ID=72553498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922477286.3U Expired - Fee Related CN211574247U (en) | 2019-12-31 | 2019-12-31 | Sealing device for propellant powder drying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211574247U (en) |
-
2019
- 2019-12-31 CN CN201922477286.3U patent/CN211574247U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR830008412A (en) | Battery vent plug | |
| CN105529423A (en) | New energy battery explosion-proof valve | |
| CN211574247U (en) | Sealing device for propellant powder drying equipment | |
| CN203761722U (en) | Electric appliance breathing type explosion-proof cabinet | |
| CN205863270U (en) | A kind of blast resistance construction of electrokinetic cell | |
| CN102903866A (en) | Lithium ion battery | |
| US2471585A (en) | Explosion-proof battery vent and filler plug | |
| CN209762351U (en) | Explosion-proof valve actuator | |
| CN205264782U (en) | Explosion -proof valve of new forms of energy battery | |
| CN103107299A (en) | Protection structure of lithium battery | |
| CN202142596U (en) | Bidirectional safety valve | |
| CN205211824U (en) | Battery blast resistant construction | |
| CN208256775U (en) | A kind of explosion-proof lithium battery | |
| CN202094184U (en) | Novel explosion-proof battery | |
| CN210110550U (en) | Fireproof aluminum electrolytic capacitor | |
| CN208011758U (en) | A kind of torsional spring gravity type explosion proof door | |
| CN208669447U (en) | A kind of engine cylinder cover of good airproof performance | |
| CN209278559U (en) | Check valve rubber tack | |
| CN209104245U (en) | A kind of explosion-proof mercury-free battery of iron-clad | |
| CN208138207U (en) | A kind of vacuum anti-explosion pump | |
| CN216344186U (en) | High withstand voltage electromagnetic pulse valve casing | |
| CN203243406U (en) | Explosion-proof industrial telephone | |
| CN208368358U (en) | A kind of explosion-proof type aluminium electrolutic capacitor | |
| CN205509719U (en) | Flame proof structure of flame proof motor | |
| CN209659797U (en) | A kind of explosion-proof control box having transparent elastic panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 |