CN206651434U - A kind of slack adjuster of the helmet and its supporting part - Google Patents
A kind of slack adjuster of the helmet and its supporting part Download PDFInfo
- Publication number
- CN206651434U CN206651434U CN201720430103.0U CN201720430103U CN206651434U CN 206651434 U CN206651434 U CN 206651434U CN 201720430103 U CN201720430103 U CN 201720430103U CN 206651434 U CN206651434 U CN 206651434U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- supporting part
- handwheel
- slack adjuster
- lockwheel
- 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
Landscapes
- Helmets And Other Head Coverings (AREA)
Abstract
The utility model discloses a kind of helmet and its slack adjuster of supporting part, wherein, the slack adjuster includes handwheel, gear, ratchet and lockwheel, the lockwheel is fixed on the supporting part, the handwheel, ratchet, gear can synchronous axial system, the end of the supporting part is provided with the engaging tooth being meshed with the gear；When the handwheel remains static, the ratchet can be engaged with the lockwheel, to lock the supporting part；When the handwheel is in rotary state, the handwheel can be engaged with the ratchet, the lockwheel, to unlock the supporting part, and drive the supporting part to move by the gear, to adjust the elastic of the supporting part.The utility model provides the slack adjuster of supporting part, and when handwheel does not rotate, the ratchet can be engaged with the lockwheel located at supporting part, with locking support band, to avoid passing through the change for pullling supporting part elasticated caused by supporting part.
Description
Technical field
It the utility model is related to helmet technical field, more particularly to a kind of helmet and its slack adjuster of supporting part.
Background technology
The helmet is a kind of instrument for being used to protect human body head, and it is many to be widely used in military, building, mining and motion etc.
Field.
The helmet generally includes housing and the supporting part located at enclosure interior, according to wear crowd difference, as child with into
The difference of people, housing can be of different sizes specification.And in order to further improve being adapted to for the helmet and different crowd head
Property, above-mentioned supporting part is also provided with slack adjuster, to adjust the elastic of enclosure interior supporting part, and then make it that the helmet can
It is worn on stabilization and cosily the head of human body.
In the prior art, the slack adjuster of above-mentioned supporting part generally include can with the knob and gear of synchronous axial system,
The gear is meshed with located at the engaging tooth of support end of tape.In this way, as the knob, gear can drive above-mentioned engaging tooth
Move to adjust the elastic of supporting part.But the slack adjuster lacks latch-up structure, but when knob does not rotate, can still lead to
Cross and pull supporting part in itself to adjust the elastic of supporting part, in use, have can because human body head such as swings at the action
Supporting part can be caused to be pullled so that the supporting part adjusted fluffs, and the helmet can not stably be worn on the head of human body, shadow
User is rung to use.
Therefore, how a kind of slack adjuster of supporting part is provided, branch caused by supporting part is pullled to avoid passing through
The change with elasticated is supportted, is still those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of helmet and its slack adjuster of supporting part, the supporting part it is elastic
Adjusting means can avoid passing through the change for pullling supporting part elasticated caused by supporting part.
In order to solve the above technical problems, the utility model provides a kind of slack adjuster of supporting part, including handwheel, tooth
Wheel, ratchet and lockwheel, the lockwheel are fixed on the supporting part, the handwheel, ratchet, gear can synchronous axial system, the branch
The end of support band is provided with the engaging tooth being meshed with the gear；When the handwheel remains static, the ratchet can be with
The lockwheel is engaged, to lock the supporting part；When the handwheel is in rotary state, the handwheel can be with the spine
Wheel, the lockwheel are engaged, and to unlock the supporting part, and drive the supporting part to move by the gear, with described in regulation
Supporting part it is elastic.
The utility model provides the slack adjuster of supporting part, and it includes the spine that can be rotated with handwheel, gear synchronous
Wheel, when handwheel does not rotate, the ratchet can be engaged with the lockwheel located at supporting part, with locking support band, to avoid passing through
Pull the change of supporting part elasticated caused by supporting part；Meanwhile when hand wheel rotating, the handwheel again can be with ratchet, lockwheel
It is engaged, to release the lock-out state of supporting part, so as to ensure that the elasticated of supporting part can be adjusted by rotating handwheel.
Alternatively, the ratchet includes ratchet body, and the periphery of the ratchet body is interval with some radially evaginations
Projection, each projection is equipped with to ratchet, two ratchets for including circumferentially extending along the ratchet body to ratchet, and
The circumferentially extending of two ratchets is in opposite direction；The lockwheel is provided with inner circular tooth, and each ratchet can be with the inner circular tooth
Abut against, to limit the rotation of the ratchet；The handwheel towards the ratchet one side be provided with it is some to rib, it is described to muscle
Bar is set with described corresponded to ratchet, described to include two ribs to rib, two ribs to rib respectively with it is described
The outer face of two ratchets of ratchet is mutually reclined；When the handwheel is in rotary state, circumferentially extending direction turns with the handwheel
Dynamic direction identical ratchet is pushed against by the rib mutually to recline therewith, and departs from the inner circular tooth, described to the another of rib
The rib offsets with the projection, to promote the ratchet and the handwheel synchronous axial system.
Alternatively, the ratchet includes the extension circumferentially extended along the ratchet body, the end tool of the extension
There is the abutting part projected radially outwardly along the ratchet body；Between the periphery of the extension and the ratchet body has
Gap, the abutting part can abut against with the inner circular tooth.
Alternatively, it is described to ratchet, the quantity to rib be two.
Alternatively, in addition to the first mounting bracket and the second mounting bracket, the two mutually can fasten to form mounting box, the branch
End, the handwheel, gear, ratchet and the lockwheel of band are supportted in the mounting box；The handwheel, which is in, rotates shape
During state, the end of the supporting part can be stretched out or retract out of described mounting box.
Alternatively, in addition to the knob on the outside of the mounting box, the knob being capable of synchronous axial systems with the handwheel.
Alternatively, the ratchet is integrally formed with the gear.
The utility model also provides a kind of helmet, including housing and the supporting part located at enclosure interior, the supporting part
End is provided with the slack adjuster of above-mentioned supporting part.
Because the slack adjuster of above-mentioned supporting part has possessed technique effect as above, then, there is the supporting part
Slack adjuster the helmet also when possessing similar technique effect, therefore will not be described here.
Brief description of the drawings
Fig. 1 is provided a kind of structural representation of embodiment of slack adjuster by the utility model；
Fig. 2 is structural representation of the slack adjuster in Fig. 1 at another visual angle；
Fig. 3 is the front view of ratchet in Fig. 1；
Fig. 4 is the structural representation at another visual angle of handwheel in Fig. 1；
Fig. 5 is provided the fundamental diagram of the slack adjuster of supporting part by the utility model.
Description of reference numerals in Fig. 1-5 is as follows：
3 supporting parts, 32 engaging tooths；
4 slack adjusters, 41 handwheels, 411 ribs, 42 gears, 43 ratchets, 431 ratchet bodies, 432 projections, 433 spine
Pawl, 433-1 extensions, 433-2 abutting parts, 433a up times ratchet, 433b inverse times ratchet, 44 lockwheels, 441 inner circular tooths, 45 first
Mounting bracket, 46 second mounting brackets.
Embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, below in conjunction with the accompanying drawings and have
The utility model is described in further detail for body embodiment.
" some " specifically described herein are that exponential quantity is uncertain multiple, usually two or more；And work as and use " some " tables
When showing the quantity of certain several part, it is impossible to which the quantity for being interpreted as these parts is identical.
The word such as " first " specifically described herein, " second " is for only for ease of the same or like two or more of description scheme
Part or structure, be not offered as certain particular determination to order.
Fig. 1-5 is refer to, Fig. 1 is provided a kind of structure of embodiment of slack adjuster by the utility model
Schematic diagram, Fig. 2 are structural representation of the slack adjuster in Fig. 1 at another visual angle, and Fig. 3 is the front view of ratchet in Fig. 1, is schemed
4 be the structural representation at another visual angle of handwheel in Fig. 1, and Fig. 5 is provided the slack adjuster of supporting part by the utility model
Fundamental diagram.
As depicted in figs. 1 and 2, the utility model, which provides slack adjuster 4, can include handwheel 41, gear 42, spine
Wheel 43 and lockwheel 44, lockwheel 44 can be fixed on supporting part 3, handwheel 41, gear 42 and ratchet 43 can synchronous axial system, and support
The engaging tooth 32 being meshed with gear 42 can be provided with 3 end.
When handwheel 41 does not rotate, ratchet 43 can be engaged with lockwheel 44, and then lock support band 3, to avoid passing through
The change of the size of supporting part 3 caused by pull supporting part 3 itself.In this way, human body, in motion, supporting part 3 i.e. will not be because of
Human body head the reason such as swings and voluntarily changes size so that in whole motion process, the helmet can keep user to be adjusted
Size, and the head of human body is stably worn on, to ensure the usage experience of user to a greater degree.
And when handwheel 41 rotates, handwheel 41 can be engaged with ratchet 43, lockwheel 44, to release the locking of supporting part 3
State, and by driving supporting part 3 to move with the gear 42 of the synchronous axial system of handwheel 41, to adjust the size of supporting part 3, so as to ensure
The elasticated of supporting part 3 can be adjusted by rotating handwheel 41.
Specifically, as in Figure 3-5, ratchet 43 can include ratchet body 431, and the periphery of ratchet body 431 can be set
There are some projections 432 of radially evagination, each projection 432 can be provided with to ratchet, and ratchet can be included along ratchet body
Two ratchets 433 of 431 circumferentially extendings, and the circumferentially extending of two ratchets 433 is in opposite direction.
More specifically, the ratchet 433 can include the extension 433-1 circumferentially extended along ratchet body 431, extension
433-1 end can have the abutting part 433-2 projected radially outwardly along ratchet body 431；Lockwheel 44 is provided with inner circular tooth
441, the abutting part 433-2 of each ratchet 433 of ratchet 43 can abut against with inner circular tooth 441.
Because the circumferentially extending to two ratchets 433 in ratchet is in opposite direction, when handwheel 41 does not rotate, lockwheel 44 it is interior
Ring tooth 441 can abut against along both direction clockwise, counterclockwise and above-mentioned two ratchet 433, and then limit the rotation of ratchet 43.
And the periphery of above-mentioned extension 433-1 and ratchet body 431 can have gap, when footpath of the external force along ratchet body 431 being present
To when inwardly acting on ratchet 433, it may be such that abutting part 433-2 and the inner circular tooth 441 of lockwheel 44 are separated, and then release ratchet
43 with the lock-out state of lockwheel 44.
In this programme, the locking released between ratchet 43 and lockwheel 44 is engaged with ratchet 43 mainly by handwheel 41
State, below by from the concrete structure of handwheel 41, handwheel 41 under different motion state, ratchet 43 and lockwheel 44 is described in detail
Matching relationship.
As shown in figure 4, the one side of handwheel 41 towards ratchet 43 can be provided with it is some to rib, to rib with to ratchet one by one
Be correspondingly arranged, can include two ribs 411 to rib, and two ribs 411 to rib can respectively with two spine to ratchet
The outer face of pawl 433 mutually reclines.
Using Fig. 5 as visual angle, for ease of description, above-mentioned two ratchets 433 to ratchet can be renamed, along ratchet sheet
The ratchet 433 that body extends for 431 weeks clockwise is referred to as up time ratchet 433a, and circumferential counterclockwise along ratchet body 431
The ratchet 433 of direction extension is referred to as inverse time ratchet 433b.
When handwheel 41 does not rotate, up time ratchet 433a, inverse time ratchet 433b abutting part 433-2 can be with inner circular tooth
441 abut against, to limit the voluntarily rotation of ratchet 43 in both direction clockwise, counterclockwise.Specifically, when external force being present
Supporting part 3 is pullled, when the drive gear 42 of engaging tooth 32 of supporting part 3, the generation of ratchet 43 rotate clockwise trend, inner circular tooth 441
Anticlockwise pushing force can be provided to up time ratchet 433a, to limit the rotation of ratchet 43, and then lock support band 3；Together
Reason, when exist external force drive ratchet 43 produce rotate counterclockwise trend when, inner circular tooth 441 also can to inverse time ratchet 433b provide it is suitable
Conterclockwise pushing force, equally can reach limitation ratchet 43 rotate, the effect of lock support band 3.
And when handwheel 41 rotates, exemplified by rotating clockwise, up time ratchet 433a is by the rib 411 mutually to recline therewith
The clockwise pushing force provided, up time ratchet 433a can depart from inner circular tooth 441 and close to ratchet body 431, enter
And release the lock-out state between ratchet 43 and lockwheel 44, and the rib 411 to be reclined with inverse time ratchet 433b phase can then promote it is convex
Block 432 so that ratchet 43 can be rotated synchronously with handwheel 41, and then be moved with moving gear 42, engaging tooth 32, to adjust support
With 3 it is elastic, after adjustment finishes, up time ratchet 433a, inverse time ratchet 433b can abut against with inner circular tooth 441 again again,
Lock support band 3 again.Handwheel 41 rotate counterclockwise it is similar to adjust the process of the size of supporting part 3 and foregoing description, herein
Do not repeat.
Using the slack adjuster 4 of constituted above, when handwheel 41 does not rotate, ratchet 43 is engaged with lockwheel 44 with certainly
Row lock support band 3, it is ensured that supporting part 3 maintains adjusted size all the time during use, the use for the user that is more convenient for；And hand
Wheel 41 can release ratchet 43, the cooperation lock-out state of lockwheel 44 immediately once rotating, and ensure that and adjust supporting part by handwheel 41
The convenience and promptness of 3 sizes, the quick regulation for the user that is more convenient for.
It should be noted that the embodiment of the present invention is made not to above-mentioned projection 432, to ratchet, to the particular number of rib
Limit, in the specific implementation, those skilled in the art refers to structure in accompanying drawing 3-5 and is configured, you can will be to ratchet, right
The quantity of rib is set to two, can also be selected to set the quantity of above-mentioned each part according to actual conditions.
Further, since said gear 42, ratchet 43 remain synchronous axial system, the two integrally manufactured formed can be combined
Part, in order to batch micro operations, quick production, Fig. 1 and Fig. 2 are for details, reference can be made to, the one side of the sub-assembly is ratchet 43, and another side
It is then gear 42；Said gear 42, ratchet 43 can also be manufactured individually, so between by weld or bond etc.
Mode installs connecting shaft, it is also ensured that the synchronous axial system of the two.
Please continue to refer to Fig. 1 and Fig. 2, above-mentioned slack adjuster 4 can also include the first mounting bracket 45 and the second installation
Frame 46, the two mutually can fasten to form mounting box.Two ends of above-mentioned supporting part 3 and handwheel 41, gear 42, ratchet 43, lockwheel
44 can be located in the mounting box, and when handwheel 41 is in rotary state, the end of supporting part 3 can be in the installation and interior stretching
Or retract.In this way, on the one hand, it is ensured that the reliability and compactedness of each part connection, user is to gear during avoiding use
42nd, the contact of the core component such as ratchet 43, and then ensure long-term, effective use of each part；On the other hand, it also may be such that the pine
The outward appearance of tight adjusting means 4 is more aesthetically pleasing.
It should be appreciated that slack adjuster 4 can't cause the forfeiture of its regulatory function in mounting box, it is specific real
Shi Shi, a part for handwheel 41 can be exposed to outside mounting box, in order to the direct regulation of user；Or also can be in the peace
Knob is set outside mounted box, knob can synchronize rotation with handwheel 41, in this way, directly turn knob is adjustable supporting part 3
Size, regulation process are more convenient.
The utility model also provides a kind of helmet, including housing and the supporting part 3 located at enclosure interior, the supporting part 3
End is the slack adjuster 4 provided with above-mentioned supporting part 3.
Because above-mentioned slack adjuster 4 has possessed technique effect as above, then, provided with the slack adjuster 4
The helmet also when possessing similar technique effect, therefore will not be described here.
It the above is only preferred embodiment of the present utility model, it is noted that for the ordinary skill people of the art
For member, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as the scope of protection of the utility model.
Claims (8)
1. a kind of slack adjuster of supporting part, it is characterised in that including handwheel (41), gear (42), ratchet (43) and lock
Take turns (44), the lockwheel (44) is fixed on the supporting part (3), and the handwheel (41), gear (42), ratchet (43) can be synchronous
Rotate, the end of the supporting part (3) is provided with the engaging tooth (32) being meshed with the gear (42)；
When the handwheel (41) remains static, the ratchet (43) can be engaged with the lockwheel (44), to lock
State supporting part (3)；
When the handwheel (41) is in rotary state, the handwheel (41) can be with the ratchet (43), the lockwheel (44) phase
Coordinate, to unlock the supporting part (3), and drive the supporting part (3) to move by the gear (42), to adjust the support
It is elastic with (3).
2. the slack adjuster of supporting part according to claim 1, it is characterised in that the ratchet (43) includes ratchet
Body (431), the periphery of the ratchet body (431) are interval with the projection (432) of some radially evaginations, each projection
(432) it is equipped with to ratchet, two ratchets (433) for including circumferentially extending along the ratchet body (431) to ratchet, and two
The circumferentially extending of the ratchet (433) is in opposite direction；
The lockwheel (44) is provided with inner circular tooth (441), and each ratchet (433) can abut against with the inner circular tooth (441),
To limit the rotation of the ratchet (43)；
The handwheel (41) be provided with towards the one side of the ratchet (43) it is some to rib, it is described to rib with it is described to ratchet one
One is correspondingly arranged, described to include two ribs (411) to rib, and two ribs (411) to rib are respectively with described to ratchet
The outer faces of two ratchets (433) mutually recline；
When the handwheel (41) is in rotary state, circumferentially extending direction and the handwheel (41) rotation direction identical ratchet
(433) pushed against by the rib (411) mutually to recline therewith, and depart from the inner circular tooth (441), another institute to rib
State rib (411) to offset with the projection (432), to promote the ratchet (43) and the handwheel (41) synchronous axial system.
3. the slack adjuster of supporting part according to claim 2, it is characterised in that the ratchet (433) includes edge
The extension (433-1) of ratchet body (431) circumferentially extending, the end of the extension (433-1) have along the spine
Take turns the abutting part (433-2) projected radially outwardly of body (431)；
The periphery of the extension (433-1) and the ratchet body (431) has gap, and the abutting part (433-2) can
Abutted against with the inner circular tooth (441).
4. the slack adjuster of supporting part according to claim 2, it is characterised in that it is described to ratchet, it is described to muscle
The quantity of bar is two.
5. the slack adjuster of the supporting part according to any one of claim 1-4, it is characterised in that also including first
Mounting bracket (45) and the second mounting bracket (46), the two mutually can fasten to form mounting box, the end of the supporting part (3), institute
Handwheel (41), gear (42), ratchet (43) and the lockwheel (44) are stated in the mounting box；
When the handwheel (41) is in rotary state, the end of the supporting part (3) can be stretched out or contract out of described mounting box
Return.
6. the slack adjuster of supporting part according to claim 5, it is characterised in that also include being located at the mounting box
The knob in outside, the knob being capable of synchronous axial systems with the handwheel (41).
7. the slack adjuster of supporting part according to claim 5, it is characterised in that the ratchet (43) and the tooth
It is integrally formed to take turns (42).
8. a kind of helmet, including housing and the supporting part (3) located at enclosure interior, it is characterised in that the end of the supporting part (3)
End is provided with the slack adjuster of the supporting part (3) as any one of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720430103.0U CN206651434U (en) | 2017-04-21 | 2017-04-21 | A kind of slack adjuster of the helmet and its supporting part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720430103.0U CN206651434U (en) | 2017-04-21 | 2017-04-21 | A kind of slack adjuster of the helmet and its supporting part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206651434U true CN206651434U (en) | 2017-11-21 |
Family
ID=60319127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720430103.0U Expired - Fee Related CN206651434U (en) | 2017-04-21 | 2017-04-21 | A kind of slack adjuster of the helmet and its supporting part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206651434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110833394A (en) * | 2019-11-13 | 2020-02-25 | 段艳文 | Device for dynamically early warning epileptic seizure |
| WO2020134396A1 (en) * | 2018-12-25 | 2020-07-02 | 深圳光启超材料技术有限公司 | Head lock and head-mounted helmet body |
-
2017
- 2017-04-21 CN CN201720430103.0U patent/CN206651434U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020134396A1 (en) * | 2018-12-25 | 2020-07-02 | 深圳光启超材料技术有限公司 | Head lock and head-mounted helmet body |
| CN110833394A (en) * | 2019-11-13 | 2020-02-25 | 段艳文 | Device for dynamically early warning epileptic seizure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206651434U (en) | A kind of slack adjuster of the helmet and its supporting part | |
| TWM428683U (en) | Adjustable helmet and head massage device | |
| BRPI0503022A (en) | gear grinding machine | |
| KR101668004B1 (en) | Head massager and helmet size adjusting structure thereof | |
| JP5993061B2 (en) | Clock lever | |
| MY192395A (en) | Window shade and actuating system thereof | |
| US20100262055A1 (en) | Corrective joint | |
| CN107656433A (en) | For clock and watch or the outside sub-component of wrist-watch or Jewelry Accessories | |
| BR112013010346A2 (en) | gear grinding method | |
| CN108061140A (en) | A kind of harmonic reducing mechanism | |
| JP2018007597A (en) | Set-up device of light shading rolling screen for vinyl houses | |
| EP3831245A4 (en) | Seat rotation locking mechanism | |
| TWI743141B (en) | Sub-assembly of external parts for watch | |
| WO2019028939A1 (en) | Adjustment device, adjustable strap and wearable device | |
| CN207455302U (en) | A kind of Projecting Lamp of adjusting irradiation angle | |
| JP2014214562A (en) | Sliding door device | |
| JP2017176399A5 (en) | ||
| JP2008256688A (en) | Unidirectional coupling device, and correction device having the same | |
| CN106321797A (en) | A gear ring rotation limiting mechanism | |
| CN203089818U (en) | Neck massager | |
| EP3162970B1 (en) | Covering rosette for a concealed sanitary fitting | |
| JP2017507838A (en) | Connection device for vehicle seat link mechanism and vehicle seat | |
| CN105299028B (en) | Three axle linked pivot devices | |
| CN104799990B (en) | Adjustable kneecapping joint supporting tool | |
| CN207657965U (en) | Gear type Quick-disassembling mechanism |
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: 20171121 Termination date: 20180421 |