CN207866113U - Inflatable gun sight - Google Patents
Inflatable gun sight Download PDFInfo
- Publication number
- CN207866113U CN207866113U CN201721889443.6U CN201721889443U CN207866113U CN 207866113 U CN207866113 U CN 207866113U CN 201721889443 U CN201721889443 U CN 201721889443U CN 207866113 U CN207866113 U CN 207866113U
- Authority
- CN
- China
- Prior art keywords
- mirror body
- gun sight
- check valve
- valve assembly
- spool
- 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.)
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Abstract
The utility model disclose and provide it is a kind of it is simple in structure, can easily meet antifog experiment, air can effectively be avoided to go mouldy influence observation the corrosion and avoiding inside mirror body.The inflatable gun sight includes mirror body（1）With setting in the mirror body（1）On check valve assembly（2）, the check valve assembly（2）It can be with the mirror body（1）Internal cavity is connected, the check valve assembly（2）Mounted on the mirror body（1）After upper, inert gas directly can be vacuumized and rushed with charger, and whole process there will not be air etc. to enter inside gun sight, easy to use, while repeatedly can be vacuumized and be rushed inert gas, increase product service life.The utility model can be widely applied to gun sight field.
Description
Technical field
The utility model is related to a kind of inflatable gun sights.
Background technology
The optical instruments such as gun sight, peephole require to pass through antifog experiment in international army and police:- 10 DEG C of low temperature 10 minutes, moves
To 52~53 DEG C of hot water, 30~35cm of the depth of water, there must not be visible fog after being kept for 1 minute, 10 seconds；Operating temperature range：-45℃
~60 DEG C, reservoir temperature range：- 50 DEG C~70 DEG C, in order to meet these requirements, after the completion of gun sight assembles, optical instrument
Inside will be filled with 99.9% high-purity nitrogen, as shown in Figure 1, the method for completing this operation at present is to process one in mirror body
Countersunk screw hole is put into gun sight in vacuum tank after completing to vacuumize, inject inert gas, gun sight is taken out vacuum tank,
It is to take out vacuum tank in gun sight to seal to sunk screw is urgent to use the urgent sealing of sunk screw, the shortcomings that this mode again
Cheng Zhong has a small amount of air and enters inside gun sight, and the substances such as water, oxygen, carbon dioxide in air can be to gun sight inside
Parts have an impact, and equally exist the defect for influencing observation and corrosion inner body.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of simple in structure, energy
Easily meet antifog experiment, can effectively avoid air from going mouldy the corrosion and avoiding inside mirror body influencing the inflatable of observation and take aim at
Quasi- mirror.
Technical solution used by the utility model is：The utility model includes mirror body and the list that is arranged in the mirror body
To valve module, the check valve assembly can be connected with the cavity inside the mirror body.
The check valve assembly includes the valve body being arranged in the mirror body and is arranged from top to bottom successively in the valve body
Internal spool, spring and spring stop piece.
The upper end of the spring is set in the lower part of the spool, lower end and is in contact with the spring stop piece, the spool
Top be adapted with the opening of the body base.
The check valve assembly further includes the sealing ring being arranged in the valve body, and the top of the spool is provided with and institute
State the compatible arc groove of sealing ring.
It is provided with O-ring seal between the valve body and the mirror body.
The check valve assembly and the mirror body thread connection.
The utility model has the beneficial effects that：The utility model includes mirror body and the unidirectional valve group that is arranged in the mirror body
Part, the check valve assembly can be connected with the cavity inside the mirror body, and the breather cheek valve of this structure is mounted on mirror body
After upper, inert gas directly can be vacuumized and rushed with charger, unidirectional charge valve can ensure that mirror body is vacuumized, is filled with
Positive pressure (about 1.5 atmospheric pressure）It is automatically closed after nitrogen, ensures that nitrogen gas purity is hindered not less than 99.9%, moment in the mirror body
Enter every outside air, whole process there will not be air etc. to enter inside gun sight, easy to use, and effectively air can be avoided to mirror
The corrosion in internal portion and influence observation of going mouldy is avoided, while repeatedly can be vacuumized and be rushed inert gas (over time,
A small amount of air entrance is had inside gun sight mirror body), increase product service life.
Description of the drawings
Fig. 1 is the structural schematic diagram of this prior art；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the explosive view of the utility model check valve assembly.
Specific implementation mode
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model includes mirror body 1 and the check valve assembly that is arranged in the mirror body 1
2, the check valve assembly 2 can be connected with the cavity inside the mirror body 1, the lower end of the check valve assembly 2 and the mirror
1 thread connection of body, the check valve assembly 2 include the valve body 21 being arranged in the mirror body 1 and are arranged from top to bottom successively
Spool 22, spring 23 inside the valve body 21 and spring stop piece 24, the upper end of the spring 23 are set in the spool 22
Lower part, lower end are in contact with the spring stop piece 24, and the top of the spool 22 is adapted with the opening of 21 bottom of the valve body.
In addition, in order to improve the leakproofness of product and promote the service life of product, the check valve assembly 2 further includes setting
Set the sealing ring 25 in the valve body 21, it is recessed that the top of the spool 22 is provided with arc compatible with the sealing ring 25
Slot is provided with O-ring seal 26 between the valve body 21 and the mirror body 1.
When production, gun sight is fixed on the table, is evacuated the open-top check valve assembly of gas nozzle 2 of air intake apparatus
The spool 22 is simultaneously compressed with the end face of the valve body 21, the spool 22 and the sealing inside the check valve assembly 2
Circle 25 is detached from, and is then evacuated air intake apparatus and is started to transfer the air in the mirror body 1, exhausts to vacuum state, be filled with lazy
Property gas to mirror body inside, gun sight air pressure inside can be set as needed, after charging inert gas, pumping air inlet set
Standby gas nozzle leaves the valve body 21, and the spool 22 compresses the sealing ring 25 under the effect of the spring 23 and plays sealing work
With, it is ensured that the mirror body 1 vacuumizes, is filled with positive pressure (about 1.5 atmospheric pressure）It is automatically closed after nitrogen, ensures the mirror
Nitrogen gas purity enters not less than 99.9%, moment barrier outside air in body 1.
The utility model can be widely applied to gun sight field.
Claims (5)
1. a kind of inflatable gun sight, it is characterised in that：The inflatable gun sight includes mirror body（1）With setting in the mirror body
（1）On check valve assembly（2）, the check valve assembly（2）It can be with the mirror body（1）Internal cavity is connected, the list
To valve module（2）Including being arranged in the mirror body（1）On valve body（21）It is arranged from top to bottom successively in the valve body（21）
Internal spool（22）, spring（23）And spring stop piece（24）.
2. inflatable gun sight according to claim 1, it is characterised in that：The spring（23）Upper end be set in it is described
Spool（22）Lower part, lower end and the spring stop piece（24）It is in contact, the spool（22）Top and the valve body（21）
The opening of bottom is adapted.
3. inflatable gun sight according to claim 1, it is characterised in that：The check valve assembly（2）It further include setting
In the valve body（21）Interior sealing ring（25）, the spool（22）Top be provided with and the sealing ring（25）It is compatible
Arc groove.
4. inflatable gun sight according to claim 1, it is characterised in that：The valve body（21）With the mirror body（1）It
Between be provided with O-ring seal（26）.
5. inflatable gun sight according to claim 1, it is characterised in that：The check valve assembly（2）With the mirror body
（1）Thread connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889443.6U CN207866113U (en) | 2017-12-29 | 2017-12-29 | Inflatable gun sight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889443.6U CN207866113U (en) | 2017-12-29 | 2017-12-29 | Inflatable gun sight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866113U true CN207866113U (en) | 2018-09-14 |
Family
ID=63463500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721889443.6U Active CN207866113U (en) | 2017-12-29 | 2017-12-29 | Inflatable gun sight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207866113U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631674A (en) * | 2018-11-28 | 2019-04-16 | 湖北航天飞行器研究所 | A kind of target seeker aerating and exhaust device and method |
| CN115342687A (en) * | 2022-10-18 | 2022-11-15 | 江西德瑞光电技术有限责任公司 | Aiming module and aiming tool using same |
-
2017
- 2017-12-29 CN CN201721889443.6U patent/CN207866113U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631674A (en) * | 2018-11-28 | 2019-04-16 | 湖北航天飞行器研究所 | A kind of target seeker aerating and exhaust device and method |
| CN109631674B (en) * | 2018-11-28 | 2020-12-22 | 湖北航天飞行器研究所 | Seeker inflation and deflation device and method |
| CN115342687A (en) * | 2022-10-18 | 2022-11-15 | 江西德瑞光电技术有限责任公司 | Aiming module and aiming tool using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |