CN103671421A - Mask fastening bolt - Google Patents
Mask fastening bolt Download PDFInfo
- Publication number
- CN103671421A CN103671421A CN201310631028.0A CN201310631028A CN103671421A CN 103671421 A CN103671421 A CN 103671421A CN 201310631028 A CN201310631028 A CN 201310631028A CN 103671421 A CN103671421 A CN 103671421A
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- China
- Prior art keywords
- base
- drawing part
- face shield
- moving block
- fixed latches
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- 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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- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to a mask fastening bolt comprising a base (1), a draw part (12), a torsion spring (5), a return spring (9), and two limit plates (4). The draw part (12) is provided with a V-shaped moving block (13). The limit plates (4) are rotatably connected onto the base (1) through rotating pins (7). One end of each limit plate (4) is provided with clamp teeth (401), and the other end of each limit plate (4) contacts with the side of the moving block (13). Two support legs of the torsion spring (5) are abutted to the limit plates (4) respectively. One end of the return spring (9) is connected with the base (1), and the other end of the return spring (9) is connected with the draw part (12). Two-spot press plugging is modified into single-spot drawing, an unplugging direction of the bolt is consistent to a drawing direction of the bolt, and the mask fastening bolt is simpler and more reliable to use and compact in structure. Therefore, the length of the whole bolt is reduced, the weight of the bolt is reduced, the head of the bolt is never exposed out of a receptacle when the bolt is externally plugged and unplugged, and hooking is avoided.
Description
Technical field
The present invention relates to latch fixing device, more particularly, relate to a kind of face shield Fixed latches.
Background technique
At present, the latch of known conventional pressure oxygen mask and non-pressurised oxygen mask adopts the form of pinching formula operation, and its fundamental diagram is as follows:
When needs latch is closed, press...with one's finger and push down upper handle 8a and the lower handle 9a of latch, the tail end that presses down lower limit bit slice 4a in the effect of upper handle 8a and lower handle 9a rotates the banking stop 4a pivot pin pin 5a that rotates, and the latch of banking stop 4a is recovered in latch main body 1a and plug pin cap 2a.When pinching upper handle 8a and lower handle 9a, make torsion spring 3a compressed, because the rotation of banking stop 4a causes reduction torsion spring 6a to be opened.When needs latch is opened, unclamp finger, under the effect of torsion spring 3a spring force, upper handle 8a and lower handle 9a reset, and owing to there is no the restriction of upper handle 8a and lower handle 9a, make banking stop 4a under the effect of reduction torsion spring 6a, banking stop 4a opens, thereby latch is opened.This latch, because needs go to press with two fingers, cause troublesome poeration to use inconvenience, and because this project organization causes latch volume excessive, weight is large.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of face shield Fixed latches is provided, and only needs simple drawing just can make latch closed, and latch plug is convenient.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of face shield Fixed latches, comprise base, drawing part, torsion spring, Returnning spring and two banking stops, described drawing part is provided with the moving block of V-arrangement, described banking stop is rotatably connected on described base by roller pin, one end of described banking stop is provided with latch, the contacts side surfaces of the other end and described moving block, two legs of described torsion spring are against respectively on described banking stop, one end of described Returnning spring is connected with described base, and the other end is connected with described drawing part; When pulling drawing part, described moving block inserts between two banking stops, and the side that described banking stop contacts with moving block laterally rotates, and a side that is provided with latch turns to the inside, described torsion spring is compressed, and described Returnning spring has the restoring force that described drawing part is oppositely moved.
In such scheme, described base is provided with the first fixing pin, and described torsion spring set is contained on described the first fixing pin, and described drawing part is provided with first and dodges groove, and described the first fixing pin is positioned at described first and dodges groove.
In such scheme, described base is provided with the second fixing pin, and one end of described Returnning spring is fixed on described the second fixing pin, and the other end contacts with described drawing part, described drawing part is provided with second and dodges groove, and described the second fixing pin is positioned at described second and dodges groove.
In such scheme, described Returnning spring is wavy spring.
In such scheme, described base is provided with the position limit pin of the moving range of the described moving block of restriction.
In such scheme, described base is provided with upper cover, and described moving block and banking stop are positioned at described upper cover below.
In such scheme, described base is also hinged with bracelet, and described bracelet and base be not in same plane.
In such scheme, described bracelet is connected with base with cup head nut by screw.
Implement face shield Fixed latches of the present invention, there is following beneficial effect:
1, the present invention changes to single-point type drawing by the plug of 2 push types, make latch to extract direction consistent with latch drawing direction, use more simple and reliable;
2, compact structure of the present invention, therefore can reduce latch entire length alleviates latch weight, and in the time of can guaranteeing the external plug of latch, latch head does not expose socket, avoids occurring hook phenomenon.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of face shield Fixed latches in prior art;
Fig. 2 is the structural representation of face shield Fixed latches of the present invention when open mode;
Fig. 3 is the A-A sectional view in Fig. 2;
Fig. 4 is the structural representation of latch when closed state;
Fig. 5 is the structural representation of latch while being installed on face shield;
Structural representation when Fig. 6 is bracelet rotation.
Embodiment
For technical characteristics of the present invention, object and effect being had more clearly, understand, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As Figure 2-Figure 5, face shield Fixed latches of the present invention comprises base 1, drawing part 12, torsion spring 5, Returnning spring 9 and two banking stops 4.
Face shield Fixed latches is for being fixed on helmet shell 17 by face shield, and helmet shell 17 is provided with the socket 18 coordinating with latch.Drawing part 12 is provided with the moving block 13 of V-arrangement, and banking stop 4 is rotatably connected on base 1 by roller pin 7.One end of banking stop 4 is provided with latch 401, when latch 401 stretches out, can be stuck in the socket 18 on the helmet.The contacts side surfaces of the other end of banking stop 4 and moving block 13, two legs of torsion spring 5 are against respectively on banking stop 4, and one end of Returnning spring 9 is connected with base 1, and the other end is connected with drawing part 12.
When pulling drawing part 12, moving block 13 inserts between two banking stops 4, and the side that banking stop 4 contacts with moving block 13 laterally rotates, and a side that is provided with latch 401 turns to the inside, and latch can be extracted in socket 18.Torsion spring 5 is compressed, and Returnning spring 9 has the restoring force that drawing part 12 is oppositely moved.While unclamping drawing part 12, under the effect of torsion spring 5 and Returnning spring 9, latch 401 laterally rotates.
Further, base 1 is provided with the first fixing pin 14, and torsion spring 5 is sleeved on the first fixing pin 14, and drawing part 12 is provided with first and dodges groove 15, the first fixing pin 14 is positioned at first and dodges groove 15, arranges first and dodges groove 15 and can provide enough spaces that drawing part 12 is moved.
Further, base 1 is provided with the second fixing pin 8, one end of Returnning spring 9 is fixed on the second fixing pin 8, the other end contacts with drawing part 12, drawing part 12 is provided with second and dodges groove 16, the second fixing pin 8 is positioned at second and dodges groove 16, arranges first and dodges groove 15 and can provide enough spaces that drawing part 12 is moved.Returnning spring 9 is preferably wavy spring, and when pulling drawing part 12, wavy spring is compressed.Be understandable that, wavy spring is preferred embodiment a kind of, by Compress Spring or extension spring, also can provide restoring force.
Further, base 1 is provided with position limit pin 10, the moving range that position limit pin 10 can moving-limiting piece 13, and position limit pin 10 is positioned at the left side of moving block 13.
Further, base 1 is provided with upper cover 6, and moving block 13 and banking stop 4 are positioned at upper cover 6 belows.Upper cover 6 can pass through position limit pin 10, roller pin 7, the first fixing pin 14 and be connected with base 1 with the second fixing pin 8, has also realized the location of drawing part 12 simultaneously and has fixed.
Further, base 1 is also hinged with bracelet 2.Preferably, bracelet 2 is hinged with base 1 by screw 3 and cup head nut 11.Bracelet 2 can rotate freely around screw 3, as shown in Figure 6, no matter the pilot who guarantees which kind of face type is when wearing face shield, fits all the time with pilot's face, improves the stability that face shield is worn.Bracelet 2 not in same plane, adopts stepped form with base 1, and in order to make, latch is stressed more presses close to human body face, makes face shield wearing more comfortable and stressed more even.
Latch plug of the present invention is convenient and reliable, and length reduces weight saving, while avoiding external, latch head exposes socket and produces hook, at latch afterbody, increases latch bracelet free to rotate, so that latch bracelet can free adjustment angle wears face shield, can adapt to different face features.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, within these all belong to protection of the present invention.
Claims (8)
1. a face shield Fixed latches, it is characterized in that, comprise base (1), drawing part (12), torsion spring (5), Returnning spring (9) and two banking stops (4), described drawing part (12) is provided with the moving block (13) of V-arrangement, described banking stop (4) is rotatably connected on described base (1) by roller pin (7), one end of described banking stop (4) is provided with latch (401), the contacts side surfaces of the other end and described moving block (13), two legs of described torsion spring (5) are against respectively on described banking stop (4), one end of described Returnning spring (9) is connected with described base (1), the other end is connected with described drawing part (12),
When pulling drawing part (12), described moving block (13) inserts between two banking stops (4), described banking stop (4) laterally rotates with the side that moving block (13) contacts, a side that is provided with latch (401) turns to the inside, described torsion spring (5) is compressed, and described Returnning spring (9) has the restoring force that described drawing part (12) is oppositely moved.
2. face shield Fixed latches according to claim 1, it is characterized in that, described base (1) is provided with the first fixing pin (14), described torsion spring (5) is sleeved on described the first fixing pin (14), described drawing part (12) is provided with first and dodges groove (15), and described the first fixing pin (14) is positioned at described first and dodges groove (15).
3. face shield Fixed latches according to claim 1, it is characterized in that, described base (1) is provided with the second fixing pin (8), one end of described Returnning spring (9) is fixed on described the second fixing pin (8), the other end contacts with described drawing part (12), described drawing part (12) is provided with second and dodges groove (16), and described the second fixing pin (8) is positioned at described second and dodges groove (16).
4. face shield Fixed latches according to claim 3, is characterized in that, described Returnning spring (9) is wavy spring.
5. face shield Fixed latches according to claim 1, is characterized in that, described base (1) is provided with the position limit pin (10) of the moving range of the described moving block of restriction (13).
6. face shield Fixed latches according to claim 1, is characterized in that, described base (1) is provided with upper cover (6), and described moving block (13) and banking stop (4) are positioned at described upper cover (6) below.
7. face shield Fixed latches according to claim 1, is characterized in that, described base (1) is also hinged with bracelet (2), and described bracelet (2) and base (1) be not in same plane.
8. face shield Fixed latches according to claim 7, is characterized in that, described bracelet (2) is connected with base (1) with cup head nut (11) by screw (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631028.0A CN103671421B (en) | 2013-11-29 | 2013-11-29 | A kind of face shield Fixed latches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310631028.0A CN103671421B (en) | 2013-11-29 | 2013-11-29 | A kind of face shield Fixed latches |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671421A true CN103671421A (en) | 2014-03-26 |
| CN103671421B CN103671421B (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310631028.0A Active CN103671421B (en) | 2013-11-29 | 2013-11-29 | A kind of face shield Fixed latches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671421B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389870A (en) * | 2014-10-27 | 2015-03-04 | 上海纳杰电气成套有限公司 | Arched clamping type fastener |
| CN105065384A (en) * | 2015-08-07 | 2015-11-18 | 陈文韬 | Umbrella-shaped connection fixing assembly and bottle opener and loofah sponge cleaning brush with umbrella-shaped connection fixing assembly |
| CN109914189A (en) * | 2019-04-01 | 2019-06-21 | 江苏亿之博实业有限公司 | Firm chinampa and its application method |
| CN111577743A (en) * | 2020-04-22 | 2020-08-25 | 凯迈（洛阳）测控有限公司 | Quick stop gear |
| CN112027290A (en) * | 2020-09-25 | 2020-12-04 | 崔晓翔 | Locking mechanism, splicing unit and splicing body |
| CN112610772A (en) * | 2020-12-16 | 2021-04-06 | 大庆石油管理局有限公司 | Quick connector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6301720B1 (en) * | 1999-07-13 | 2001-10-16 | Thomson-Csf Sextant | Modular helmet |
| CN101813117A (en) * | 2010-04-20 | 2010-08-25 | 海洋王照明科技股份有限公司 | Impact-resistant bolt connecting device |
| CN201916320U (en) * | 2010-12-23 | 2011-08-03 | 江旭良 | Quick bolt |
| CN203538470U (en) * | 2013-09-27 | 2014-04-16 | 无锡市晋业航空安全设备有限公司 | Pull bolt device |
| CN203585022U (en) * | 2013-11-29 | 2014-05-07 | 航宇救生装备有限公司 | Mask fixing bolt |
-
2013
- 2013-11-29 CN CN201310631028.0A patent/CN103671421B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6301720B1 (en) * | 1999-07-13 | 2001-10-16 | Thomson-Csf Sextant | Modular helmet |
| CN101813117A (en) * | 2010-04-20 | 2010-08-25 | 海洋王照明科技股份有限公司 | Impact-resistant bolt connecting device |
| CN201916320U (en) * | 2010-12-23 | 2011-08-03 | 江旭良 | Quick bolt |
| CN203538470U (en) * | 2013-09-27 | 2014-04-16 | 无锡市晋业航空安全设备有限公司 | Pull bolt device |
| CN203585022U (en) * | 2013-11-29 | 2014-05-07 | 航宇救生装备有限公司 | Mask fixing bolt |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389870A (en) * | 2014-10-27 | 2015-03-04 | 上海纳杰电气成套有限公司 | Arched clamping type fastener |
| CN105065384A (en) * | 2015-08-07 | 2015-11-18 | 陈文韬 | Umbrella-shaped connection fixing assembly and bottle opener and loofah sponge cleaning brush with umbrella-shaped connection fixing assembly |
| CN105065384B (en) * | 2015-08-07 | 2017-09-22 | 陈文韬 | Umbrella be connected component and application the component bottle opener and Luffa sponge cleaning brush |
| CN109914189A (en) * | 2019-04-01 | 2019-06-21 | 江苏亿之博实业有限公司 | Firm chinampa and its application method |
| CN111577743A (en) * | 2020-04-22 | 2020-08-25 | 凯迈（洛阳）测控有限公司 | Quick stop gear |
| CN111577743B (en) * | 2020-04-22 | 2021-09-14 | 凯迈（洛阳）测控有限公司 | Quick stop gear |
| CN112027290A (en) * | 2020-09-25 | 2020-12-04 | 崔晓翔 | Locking mechanism, splicing unit and splicing body |
| CN112610772A (en) * | 2020-12-16 | 2021-04-06 | 大庆石油管理局有限公司 | Quick connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671421B (en) | 2016-02-24 |
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