CN106108210A - A kind of lock rotation mechanism - Google Patents
A kind of lock rotation mechanism Download PDFInfo
- Publication number
- CN106108210A CN106108210A CN201610465299.7A CN201610465299A CN106108210A CN 106108210 A CN106108210 A CN 106108210A CN 201610465299 A CN201610465299 A CN 201610465299A CN 106108210 A CN106108210 A CN 106108210A
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- China
- Prior art keywords
- lock
- lug
- rotation
- locking
- shell
- Prior art date
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- 230000007246 mechanism Effects 0.000 title claims abstract description 104
- 230000008878 coupling Effects 0.000 claims abstract description 15
- 238000010168 coupling process Methods 0.000 claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 claims abstract description 15
- 230000000670 limiting effect Effects 0.000 claims description 115
- 230000006835 compression Effects 0.000 claims description 13
- 238000007906 compression Methods 0.000 claims description 13
- 230000002349 favourable effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 210000003128 head Anatomy 0.000 description 5
- 230000002401 inhibitory effect Effects 0.000 description 4
- 230000036961 partial effect Effects 0.000 description 4
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000000151 deposition Methods 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/18—Face protection devices
- A42B3/20—Face guards, e.g. for ice hockey
Landscapes
- Helmets And Other Head Coverings (AREA)
Abstract
The present invention relates to a kind of lock rotation mechanism, for motorcycle helmet, this motorcycle helmet includes helmet main body and face shield, helmet main body be respectively provided on two sides with a coupling mechanism, face shield be respectively provided on two sides with an ear, each coupling mechanism includes: housing, it includes inner side shell, middle case and outer shell, inner side shell and outer shell separate from the both sides of middle case, inner side shell is fixedly mounted in helmet main body, middle case is installed in rotation on the shell of inner side, is formed with the slot being available for ear's plug between outer shell and middle case；Lock rotation mechanism, allows middle case to rotate after ear inserts slot, and stops middle case to rotate after slot is extracted by ear.The present invention is by arranging lock rotation mechanism so that after slot is extracted by ear, and middle case is forbidden rotating, so middle case of helmet main body both sides, actually can only synchronous axial system, it is impossible to relatively rotate, it is to avoid the slot position of both sides staggers not parallel and causes the problem of installation difficulty to occur.
Description
Technical Field
The invention relates to a locking mechanism, in particular to a locking mechanism used on a motorcycle helmet.
Background
A motorcycle rider must wear a helmet to protect his head. The existing motorcycle helmet generally comprises a helmet body worn on the head and a transparent face shield, wherein the face shield is rotatably arranged on the helmet body through hinge mechanisms on two sides, can be pushed upwards to be far away from the face when the face shield is not needed to be used, and can be pushed downwards to shield the face when the face shield is needed to be used. The face mask is used for preventing substances such as wind, rain, dust and the like from damaging the face and eyes of a driver.
When the motorcycle helmet is not used, it needs to be stored, and if it is placed outside, it is easily stolen, so it is generally stored in a box below a seat cushion. Because the space of the carriage is limited, the remaining storable space of the carriage becomes smaller especially after storing articles such as raincoats, water bottles, backpacks and the like. The mask and the helmet body occupy a very large space due to the assembly relationship of the mask and the helmet body, and are not convenient to store in the car box.
In the prior art, the ear part of the mask passes through the screw to be installed on the helmet body, and the mask can be disassembled and assembled only by means of a screwdriver, so that the mask is difficult to install.
Disclosure of Invention
In order to overcome the problem of difficulty in installing a mask in the prior art, an embodiment of the invention provides a locking mechanism for a motorcycle helmet, which comprises a helmet body and a mask, wherein two sides of the helmet body are respectively provided with a connecting mechanism, two sides of the mask are respectively provided with an ear part, each ear part is respectively connected with one connecting mechanism, and each connecting mechanism comprises: the helmet comprises a helmet body, a shell, a connecting piece and a connecting piece, wherein the shell comprises an inner shell, a middle shell and an outer shell, the inner shell and the outer shell are respectively arranged on two sides of the middle shell, the inner shell is fixedly arranged on the helmet body, the middle shell is rotatably arranged on the inner shell, the outer shell is fixedly arranged on the middle shell, and a slot for plugging and unplugging an ear part is formed between the outer shell and the middle shell; and the locking and rotating mechanism is arranged in the middle shell, allows the middle shell to rotate after the lug parts are inserted into the slots, and prevents the middle shell from rotating after the lug parts are pulled out of the slots.
According to the helmet, the rotation locking mechanism is arranged, so that the mask and the middle shell (comprising the outer shell) are allowed to rotate together after the ear part is inserted into the slot, and the middle shell (comprising the outer shell) is forbidden to rotate after the ear part is pulled out of the slot (namely, the mask is separated from the helmet body), so that the middle shells (comprising the outer shell) at two sides of the helmet body can only rotate synchronously in practice and cannot rotate relatively, and the problem that the installation is difficult due to the fact that the positions of the slots at two sides are staggered and not parallel is solved.
Drawings
Figure 1 shows a schematic perspective view of a motorcycle helmet;
FIG. 2 shows a perspective view of the visor separated from the helmet body;
figure 3 shows a perspective exploded schematic view of a motorcycle helmet;
figure 4 shows a perspective exploded schematic view of another angle of a motorcycle helmet, in which the helmet body and visor are hidden;
FIG. 5 shows a schematic view of the ear portion after being pulled out of the slot, hiding the helmet body and the outer shell;
FIG. 6 shows a cross-sectional view A-A of FIG. 1;
FIG. 7 shows a cross-sectional view B-B of FIG. 6;
FIG. 8 shows an enlarged partial view of portion C of FIG. 6;
FIG. 9 shows an enlarged view of a portion D of FIG. 6;
FIG. 10 shows an enlarged view of portion E of FIG. 6;
FIG. 11 shows an enlarged partial view of portion F of FIG. 7;
FIG. 12 shows an enlarged partial view of portion G of FIG. 7;
FIG. 13 is a schematic view of the ear portion shown in FIG. 6 after being pulled out of the slot;
FIG. 14 is a schematic view of the ear portion shown in FIG. 7 after being removed from the slot;
FIG. 15 shows an enlarged partial view of portion H of FIG. 13;
FIG. 16 shows an enlarged view of a portion J of FIG. 14;
FIG. 17 shows an enlarged view of the portion K of FIG. 14;
FIG. 18 shows a perspective view of a locking lug mechanism;
FIG. 19 shows a perspective view of the locking lug mechanism after separation of the locking lug shell;
FIG. 20 shows an exploded perspective view of the lug mechanism;
FIG. 21 shows a schematic perspective view of the ejection mechanism;
FIG. 22 shows an exploded perspective view of the ejection mechanism;
FIG. 23 illustrates a perspective view of the rotation limiting mechanism;
FIG. 24 shows an exploded perspective view of the rotation limiting mechanism;
FIG. 25 shows a perspective view of the locking mechanism;
FIG. 26 is a perspective view of the locking mechanism shown with the locking swivel housing separated;
fig. 27 shows an exploded perspective view of the locking mechanism.
The specific implementation mode is as follows:
a motorcycle helmet as shown in fig. 1 to 27, comprising a helmet body 10 for wearing on the head of a driver and a transparent face shield 20, wherein both sides of the helmet body 10 are respectively provided with a coupling mechanism 30, both sides of the face shield 20 are respectively provided with an ear portion 201, each ear portion 201 is respectively coupled with a coupling mechanism 30, and in particular, each ear portion 201 is respectively inserted into a coupling mechanism 30 in a removable manner, each coupling mechanism comprises:
as shown in fig. 3 and 4, the shell 40 includes an inner shell 401, an intermediate shell 402 and an outer shell 403, the inner shell 401 and the outer shell 403 are separated from two sides of the intermediate shell 402, the inner shell 401 is fixedly mounted on the helmet body 10, the intermediate shell 402 is rotatably mounted on the inner shell 401, the outer shell 403 is fixedly mounted on the intermediate shell 402, in this embodiment, the outer shell 403 and the intermediate shell 402 are buckled together by a snap connection structure (not shown), that is, the outer shell 403 and the intermediate shell 402 are buckled together to facilitate the assembly and disassembly of the outer shell, the snap connection structure of this embodiment may be an existing snap connection structure, a slot 404 for inserting and removing the ear 201 is formed between the outer shell 403 and the intermediate shell 402 to couple the ear 201 and the coupling mechanism 30, in this embodiment, the shell 40 is provided with a slot 405 communicating with the slot 404, and particularly, the slot 405 is provided between the outer shell 403 and the intermediate shell 402, the ear 201 is inserted into the slot 404 through the slot 405, and a rotation limiting chamber 406 is formed between the inner shell 401 and the middle shell 402; the shell of the embodiment has a simple structure, realizes rotatable assembly of the middle shell and the outer side, namely the rotatable face mask, can be pushed upwards to be away from the face when the face mask is not needed to be used, and can be pushed downwards to shield the face when the face mask is needed to be used; the shell structure of the invention separates the rotation limiting chamber from the slot independently, thus avoiding the collision and friction between the ear part and the parts (such as gears) in the first rotation chamber;
an ear lock mechanism 50 installed in the housing 40 for locking the ear 201 inserted into the slot 404 to prevent the ear 201 from being pulled out of the slot 404, and in particular, the ear lock mechanism 50 for locking or releasing the ear 201 inserted into the slot 404 to prevent or allow the ear 201 from being pulled out of the slot 404; the invention can prevent the ear part inserted into the slot from accidentally separating from the slot by arranging the ear locking mechanism, namely, the helmet body and the mask are prevented from accidentally separating, thereby ensuring the use safety and reliability.
A button 60 installed in the housing 40 to be manually pressed by a driver, the button 60 being coupled with the lug mechanism 50, the lug mechanism 50 releasing the ear 201 inserted into the insertion slot 404 to allow the ear 201 to be pulled out of the insertion slot 404 when the button 60 is pressed; the mask can be conveniently detached by a driver through the arrangement of the button, so that the mask is conveniently and quickly detached; the mask can be assembled and disassembled.
The eject mechanism 70, mounted in the housing 40, and particularly in the slot 404, causes the ear 201 inserted into the slot 404 to have a tendency to exit the slot 404, i.e., the eject mechanism 70 pushes the ear 201 inserted into the slot 404 to move toward the direction of exiting the slot 404. According to the invention, the pop-up mechanism is arranged, when the lug locking mechanism looses the lug, the lug inserted into the slot is actively pushed out of the slot by the pop-up mechanism, so that a driver can easily and quickly pull out the lug.
A rotation limiting mechanism 80 installed in the housing 40, particularly, in the rotation limiting chamber 406, such that the middle case 402 rotates only by a predetermined external force; the rotation limiting mechanism is arranged to enable the mask to rotate under the action of a preset external force (such as manual pushing force), and after the preset external force is cancelled, the rotation limiting mechanism overcomes the gravity action of the mask to stop rotating and stays at the rotated position.
The locking mechanism 90, which is installed in the housing 40, particularly in the middle case 402, allows the middle case 402 to rotate after the ears 201 are inserted into the slots 404, and prevents the middle case 402 from rotating after the ears 201 are pulled out of the slots 404. If after face guard and helmet body separation, the relative rotation takes place for the middle shell (including the shell of outside) of helmet body both sides, causes the slot position of both sides to stagger nonparallel, and when treating the installation face guard, the ear between the face guard needs to look for the position of slot respectively, can produce the problem of installation difficulty like this. In order to solve the technical problem, the invention is provided with the locking and rotating mechanism, so that after the ear part is inserted into the slot, the mask and the middle shell (comprising the outer shell) are allowed to rotate together, and after the ear part is pulled out of the slot (namely, the mask is separated from the helmet body), the middle shell (comprising the outer shell) is forbidden to rotate, so that the middle shells (comprising the outer shell) at the two sides of the helmet body can only synchronously rotate actually and cannot rotate relatively, and the problem that the slots at the two sides are staggered and not parallel to cause difficulty in installation is avoided.
In this embodiment, the locking mechanism 90 and the locking lug mechanism 50 are separated from each other on both sides of the slot 404.
As shown in fig. 3 to 10, the helmet body 10 is provided with mounting studs 101, and particularly, two sides of the helmet body 10 are respectively provided with one mounting stud 101, each mounting stud 101 is used for mounting a coupling mechanism 30, the inner shell 401 is provided with a positioning stud 407, a central hole 408 is formed in the positioning stud 407, the middle shell 402 is provided with a rotating hole 409, the positioning stud 407 is in a stepped shaft shape and comprises a large-diameter section 410 and a small-diameter section 411, and a shoulder 412 is formed at a connection position of the large-diameter section 410 and the small-diameter section 411;
the middle shell 402 is rotatably sleeved outside the small-diameter section 411 of the positioning convex column through a rotating hole 409, the mounting stud 101 is inserted into the central hole 408, a screw 413 is inserted into the central hole 408 and is in threaded fit with the mounting stud 101, the head 414 of the screw abuts against the end 415 of the small-diameter section of the positioning convex column to fasten the inner shell 401 on the helmet body 10, the middle shell 402 is limited between the head 414 of the screw and the shoulder 412 so that the middle shell 402 is axially positioned and circumferentially rotated, that is, the movement of the middle shell 402 along the axial direction of the positioning convex column 407 is positioned, and the middle shell 402 can rotate around the small-diameter section 411 of the positioning convex column, that is, the middle shell 402 rotates around the axial direction of the positioning convex column 407. The shell structure of the invention enables the screw to be hidden in the shell, plays the roles of dust prevention and water prevention, and avoids the phenomena of rusting, damage and the like caused by exposure of the screw due to sun and rain. When the screws need to be disassembled, only the outer shell needs to be opened.
As shown in fig. 5, 7, 11, 14, 16, 18, 19 and 20, the shackle mechanism 50 includes a shackle housing 501, a shackle plug 502, a shackle drive rod 503, a shackle link 504, a shackle lever 505, and a shackle torsion spring 506;
in this embodiment, the lug housing 501 is formed by two half-shells, and is mounted in the middle housing 402 by a first screw 507;
a lock lug accommodating cavity 508 is arranged in the lock lug shell 501, a lock lug fixing shaft 509 is arranged in the lock lug accommodating cavity 508, a lock lug first opening 510 and a lock lug second opening 511 are arranged on the lock lug shell 501, and the lock lug first opening 510 and the lock lug second opening 511 are both communicated with the lock lug accommodating cavity 508;
the lock lug bolt 502 comprises a lock lug bolt sliding fit part 512 and a lock lug bolt protruding part 513 which are connected together, the lock lug bolt sliding fit part 512 is slidably installed in the lock lug cavity 508, the lock lug bolt sliding fit part 512 slides under the guidance of the inner wall of the lock lug shell 501 enclosing the lock lug cavity 508, and the lock lug bolt protruding part 513 extends out of the lock lug cavity 508 from the lock lug first opening 510 and into the insertion groove 404;
the lock lug driving rod 503 comprises a lock lug driving rod sliding matching part 514 and a lock lug driving rod protruding part 515 which are connected together, the lock lug driving rod sliding matching part 514 is slidably arranged in the lock lug accommodating cavity 508, the lock lug driving rod sliding matching part 514 slides under the guidance of the inner wall of the lock lug shell 501 enclosing the lock lug accommodating cavity 508, the lock lug driving rod protruding part 515 extends out of the lock lug accommodating cavity 508 from the lock lug second opening 511, and the button 60 is fixedly arranged on the lock lug driving rod protruding part 515;
the sliding direction of the lock lug bolt 502 is perpendicular to the sliding direction of the lock lug drive rod 503;
the lock lug connecting rod 505 comprises a short arm 516 and a long arm 517 which are connected together, one end of the short arm 516 is connected with one end of the long arm 517, the other end of the short arm 516 is provided with a lock lug roller 518, the other end of the long arm 517 is hinged with one end of the lock lug connecting rod 504, and the other end of the lock lug connecting rod 504 is hinged with the lock lug bolt sliding matching part 512;
a lock lug through hole 519 is arranged at the joint of the short arm 516 and the long arm 517, and the lock lug connecting rod 505 is rotatably sleeved on the lock lug fixing shaft 509 through the lock lug through hole 519;
the lock lug driving rod sliding matching part 514 is provided with a lock lug driving rod inclined plane 520, the lock lug roller 518 is pressed against the lock lug driving rod inclined plane 520 so that the lock lug roller 518 slides along the lock lug driving rod inclined plane 520, the button 60 is pressed so that the lock lug driving rod 503 drives the lock lug connecting rod 505 to rotate around the lock lug fixing shaft 509 in the clockwise direction O, and when the button 60 is released, the lock lug torsion spring 506 drives the lock lug connecting rod 505 to rotate around the lock lug fixing shaft 509 in the counterclockwise direction P so as to drive the lock lug driving rod 503 to reset;
the locking lug torsion spring 506 is sleeved on the locking lug fixing shaft 509, one elastic arm 521 of the locking lug torsion spring is installed on the locking lug fixing shaft 509, the other elastic arm 522 of the locking lug torsion spring is installed on the locking lug connecting rod 505, particularly, the other elastic arm 522 of the locking lug torsion spring is installed on the long arm 517, the locking lug torsion spring 506 enables the locking lug connecting rod 505 to have the tendency of rotating around the locking lug fixing shaft 509 in the anticlockwise direction P, and the locking lug torsion spring 506 acts on the locking lug connecting rod 505 to enable the locking lug roller 518 to be always contacted with and abut against the locking lug driving rod inclined surface 520;
when the lock lug lever 505 rotates to drive the lock lug bolt 502 to switch between a locking position (shown in fig. 7 and 11) and a releasing position (shown in fig. 14 and 16), when the lock lug bolt 502 is in the locking position, the lock lug mechanism 50 locks the ear part 201 inserted into the slot 404 to prevent the ear part 201 from being pulled out of the slot 404; when the locking lug bolt 502 is in the release position, the lug mechanism 50 releases the lug 201 inserted into the slot 404 to allow the lug 201 to be pulled out of the slot 404;
a notch 202 is arranged on the ear 201, and in the embodiment, the notch 202 is positioned at the upper edge 203 of the ear;
when the lock lug lever 505 is rotated in the clockwise direction O about the lock lug fixation axis 509, the lock lug bolt 502 is switched from the locked position to the unlocked position;
when the lock lug lever 505 is rotated in the counterclockwise direction P about the lock lug fixation axis 509, the lock lug bolt 502 is switched from the release position to the lock position; wherein,
when the locking lug bolt 502 is in the locked position, the locking lug bolt protrusion 513 extends into the ear's notch 202 inserted into the slot 404 to prevent the ear 201 from being pulled out of the slot 404;
with the locking lug latch 502 in the release position, the locking lug latch protrusion 513 exits the ear notch 202 inserted into the slot 404 to allow the ear 201 to be pulled out of the slot 404.
In this embodiment, the locking lug latch 502 is in the locked position when the lug 201 is not inserted into the slot 404.
The lug locking mechanism enables the sliding direction of the lug locking bolt to be perpendicular to the sliding direction of the lug locking driving rod (namely the pressing direction of the button) through the lug locking crank rod, so that the button can be conveniently arranged on the outer end face of the shell, and after the motorcycle helmet is taken off, the outer end face of the shell is completely exposed in the sight range of a driver, so that the driver can conveniently find the button. In addition, the lug locking mechanism is simple in structure and reasonable in design. The length of the short arm and the length of the long arm are reasonably selected, so that the small stroke motion of the lock lug driving rod drives the large stroke motion of the lock lug bolt, the large stroke motion of the lock lug bolt is beneficial to stably and reliably locking the lug part, the small stroke motion of the lock lug driving rod is beneficial to the space layout design of the whole coupling mechanism, the space occupied by the coupling mechanism is convenient to reduce, and especially the size in the thickness direction (namely the pressing direction of the button) of the coupling mechanism can be reduced.
The lug bolt protruding part 513 is provided with a lug bolt inclined plane 523, the lug 201 is provided with a first lug inclined plane 204, when the lug 201 is inserted into the slot 404 from the outside of the slot 404, the first lug inclined plane 204 presses the lug bolt inclined plane 523 to enable the lug bolt 502 to slide from a locking position to a releasing position, namely the lug bolt 502 rotates along the clockwise direction O, in the process, the lug crank rod 505 does not drive the lug driving rod to slide, so that the lug can be inserted into the lug more easily, and at least in the process of inserting the lug, the force for driving the button and the lug driving rod to slide is not needed; according to the invention, the lug bolt inclined plane is arranged, so that the lug bolt can be driven to slide from the locking position to the releasing position while the lug part is inserted into the slot from the outside, and after the lug part is completely inserted into the slot, the protruding part of the lug bolt falls into the notch on the lug part; the first lug inclined plane is arranged, so that the lug can drive the lug bolt to slide;
as shown in fig. 3 and 4, the shell 40 includes an inner end surface 416, a side surface 417 and an outer end surface 418 opposite to the inner end surface 416, the side surface 417 is connected between the inner end surface 416 and the outer end surface 418, the inner end surface 416 faces the helmet body 10, the outer end surface 418 faces outwards, i.e. the outer end surface 418 faces away from the helmet body 10, and the button 60 protrudes from the outer end surface 418;
the included angle between the short arm 516 and the long arm 517 is a right angle;
the length of the short arm 516 is less than the length of the long arm 517;
the inner end face 416 is located on the inner shell 401, the outer end face 418 is located on the outer shell 403, and the side face 417 is located on the middle shell, but the side face 417 may be formed by the side faces of the inner shell 401, the middle shell 402, and the outer shell 403.
As shown in fig. 5, 6, 9, 13, 15, 21, and 22, the eject mechanism 70 includes an eject housing 701, an eject pusher 702, and an eject pressure spring 703;
the pop-up shell 701 is formed by splicing two half shells, is installed in the middle shell 402 through a second screw 704, is provided with a pop-up cavity 705 inside the pop-up shell 701, and is provided with a pop-up opening 706 communicated with the pop-up cavity 705 on the pop-up shell 701;
pop-up pusher 702 comprises outer plate 707, intermediate connecting portion 708 and inner plate 709, where the inner plate 709 is slidably mounted in pop-up cavity 705, one end of the intermediate connecting portion 708 is connected to the inner plate 709, and the other end of the intermediate connecting portion 708 extends out of pop-up cavity 705 through pop-up opening 706 and is connected to the outer plate 707;
the ejection pressure spring 703 is installed in the ejection accommodating cavity 705;
one end of the spring 703 props against the shell 701, and the other end of the spring 703 props against the inner plate 709;
the ejection push block 702 slides between a compressed position (shown in fig. 6 and 9) and an ejection position (shown in fig. 13 and 15), and the ejection compression spring 703 causes the ejection push block 702 to have a tendency to return to the ejection position, i.e., the ejection compression spring 703 acts on the ejection push block 702 to move the ejection push block 702 from the compressed position to the ejection position;
when the ear portion 201 is inserted into the slot 404 from the slot 404, the ear portion 201 presses against the outer plate 707 (particularly, the end surface 205 of the ear portion presses against the outer plate 707) to push the eject pushing block 702 to slide from the eject position to the compressed position.
When the ejection push block 702 is in the compression position, the outer plate 707 abuts against the ejection case 701;
when the ejection push block 702 is at the ejection position, the inner plate 709 abuts against the ejection shell; thereby, the movement of the ejection push block 702 is limited by the ejection case 701.
The pop-up mechanism has a simple structure.
As shown in fig. 6, 8, 13, 23 and 24, the rotation limiting mechanism 80 includes a gear 801 located in the rotation limiting chamber 406, a rotation limiting shell 802, a rotation limiting detent 803, a rotation limiting compression spring 804 and a rotation limiting top member 805;
in this embodiment, the rotation limiting shell 802 is also formed by splicing two half shells, and is installed in the middle shell 402 by a third screw 806;
the gear 801 is fixedly mounted on the large diameter section 410 of the positioning boss;
the rotation limiting shell 802 is fixedly arranged on the middle shell 402 so that the rotation limiting shell 802 rotates along with the middle shell 402, a rotation limiting chute 807 is arranged in the rotation limiting shell 802, and a rotation limiting shell opening 808 communicated with the rotation limiting chute 807 is arranged on the rotation limiting shell 802;
the rotation limiting top piece 805 comprises a rotation limiting top plate 809, a rotation limiting screw 810 and a rotation limiting hand wheel 811, wherein the rotation limiting top plate 809 can be slidably arranged in a rotation limiting sliding groove 807, one end of the rotation limiting screw 810 is pressed against the rotation limiting top plate 809, the other end of the rotation limiting screw 810 extends out of a rotation limiting shell 802 and is connected with a rotation limiting hand wheel 811, the rotation limiting screw 810 is in threaded fit with the rotation limiting shell 802, the rotation limiting hand wheel 811 is manually driven to rotate, so that the rotation limiting top plate 809 can be driven to slide in the rotation limiting sliding groove 807, the adjustment is convenient and rapid, and the elastic force of the rotation limiting pressure spring can be adjusted without disassembling the rotation limiting shell;
the rotation-limiting bayonet 803 comprises a rotation-limiting bayonet sliding matching part 812 and a rotation-limiting bayonet convex part 813 which are connected together, the rotation-limiting bayonet sliding matching part 812 is slidably arranged in the rotation-limiting sliding groove 807, the rotation-limiting bayonet convex part 813 extends out of the rotation-limiting shell 802 from the rotation-limiting shell opening 808 and extends into a toothed slot of the gear 801, and the rotation-limiting bayonet convex part 813 jumps into a toothed slot of another gear 801 from the toothed slot of the currently extending gear 801 when the middle shell 402 rotates;
the two sides of the rotation limiting bayonet lock bulge 813 are respectively provided with a rotation limiting bayonet lock inclined plane 814 matched with the tooth surface of the gear 801, and the rotation limiting bayonet lock bulge 813 is tapered so that the rotation limiting bayonet lock 803 jumps into the tooth space of the other gear 801 from the tooth space of the gear 801 which is currently stretched in when the middle shell 402 rotates;
the rotation limiting pressure spring 804 is installed in the rotation limiting sliding groove 807, one end of the rotation limiting pressure spring 804 abuts against the rotation limiting clamping pin sliding fit portion 812, the other end of the rotation limiting pressure spring 804 abuts against the rotation limiting top plate 809, and the rotation limiting hand wheel 811 is rotated to drive the rotation limiting top plate 809 to move close to or far away from the rotation limiting clamping pin sliding fit portion 812 so as to control the compression amount of the rotation limiting pressure spring 804.
The elastic force of the rotation limiting pressure spring is reduced after the rotation limiting pressure spring is used for a period of time, so that the rotation limiting mechanism loses the function, and the mask cannot stay at the expected position under the action of self gravity. The rotation limiting mechanism of the embodiment can adjust the compression amount of the rotation limiting pressure spring by arranging the rotation limiting jacking piece so as to adjust the elastic force of the rotation limiting pressure spring, so that the rotation limiting mechanism reliably works, and the function of the rotation limiting mechanism is always maintained.
As shown in fig. 5, fig. 7, fig. 12, fig. 14, fig. 17, fig. 25, fig. 26, and fig. 27, the lock rotation mechanism 90 includes a lock rotation housing 901, a lock rotation click pin 902, a lock rotation drive rod 903, a lock rotation crank 904, a lock rotation cam 905, a lock rotation torsion spring 906, a lock rotation compression spring 907, and a lock rotation link 900;
in this embodiment, the locking rotating shell 901 is also formed by splicing two half shells, and is installed in the middle shell 402 by a fourth screw 908;
a lock rotation cavity 909 is arranged in the lock rotation shell 901, a lock rotation first opening 910 and a lock rotation second opening 911 are arranged on the lock rotation shell 901, and both the lock rotation first opening 910 and the lock rotation second opening 911 are communicated with the lock rotation cavity 909;
the locking and rotating bayonet 902 comprises a locking and rotating bayonet sliding matching part 912 and a locking and rotating bayonet convex part 913 which are connected together, the locking and rotating bayonet sliding matching part 912 is slidably arranged in a locking and rotating cavity 909, the locking and rotating bayonet sliding matching part 912 slides under the guide of the inner wall of a locking and rotating shell 901 which encloses the locking and rotating cavity 909, the locking and rotating bayonet convex part 913 extends out of the locking and rotating cavity 909 from a locking and rotating first opening 910 and extends into the rotation limiting chamber 406, a locking and rotating wheel frame 914 is arranged on the locking and rotating bayonet sliding matching part 912, and a locking and rotating wheel 915 is arranged on the locking and rotating wheel frame 914;
the lock rotation driving rod 903 comprises a lock rotation driving rod sliding matching part 916 and a lock rotation driving rod protruding part 917 which are connected together, the lock rotation driving rod sliding matching part 916 is slidably installed in the lock rotation accommodating cavity 909, the lock rotation driving rod sliding matching part 916 slides under the guidance of the inner wall of the lock rotation shell 901 which encloses the lock rotation accommodating cavity 909, the lock rotation driving rod protruding part 918 extends out of the lock rotation accommodating cavity 909 from the lock rotation second opening 911 and extends into the slot 404, and a lock rotation driving rod inclined plane 919 is arranged on the lock rotation driving rod protruding part 918;
the sliding direction of the lock rotation detent 902 is parallel to the sliding direction of the lock rotation driving lever 903;
the lock rotation crankshaft 904 is rotatably installed in the lock rotation accommodating cavity 909, the lock rotation cam 905 is fixedly installed on the lock rotation crankshaft 904, so that the lock rotation cam 905 rotates around the axis of the lock rotation crankshaft 904 along with the lock rotation crankshaft 904, the lock rotation crankshaft 904 is provided with a connecting rod journal 920, in particular, the lock rotation crankshaft 904 is provided with a radially offset connecting rod journal 920, one end of the lock rotation connecting rod 900 is hinged on the connecting rod journal 920, and the other end of the lock rotation connecting rod 900 is hinged on the lock rotation driving rod sliding matching part 916;
the lock-rotation cam 905 has a profile with a distal end Q and a proximal end R, the distal end Q is spaced from a rotation center of the lock-rotation cam 905 (i.e., an axial center of the lock-rotation crankshaft 904) by a distance N, and the proximal end R is spaced from the rotation center of the lock-rotation cam 905 by a distance M, where N > M;
the locking and rotating pressure spring 907 is installed in the locking and rotating cavity 909, one end of the locking and rotating pressure spring 907 abuts against the locking and rotating shell 901, the other end of the locking and rotating pressure spring 907 abuts against the sliding matching part 912 of the locking and rotating bayonet lock, and the locking and rotating pressure spring 907 enables the locking and rotating roller 915 of the locking and rotating bayonet lock to keep contact with the profile of the locking and rotating cam 905;
the lock rotating torsion spring 906 is sleeved on the lock rotating crankshaft 904, one elastic arm of the lock rotating torsion spring is installed on the lock rotating shell 901, the other elastic arm of the lock rotating torsion spring is installed on the lock rotating crankshaft 904, and the lock rotating torsion spring 906 enables the lock rotating crankshaft 904 to have a tendency of rotating in the clockwise direction O;
the lock detent 902, when slid, switches between a detent disabled position (as shown in figures 14 and 17) and a detent alignment position (as shown in figures 7 and 12);
when the lock-rotation bayonet 902 is in the bayonet lock-rotation disabled position, the lock-rotation roller 915 is in contact with the distal end Q on the profile of the lock-rotation cam 905, and the lock-rotation bayonet protrusion 913 protrudes into the tooth groove of the gear 801 to prevent the intermediate housing 402 from rotating;
when the lock-rotor bayonet 902 is in the bayonet lock rotational position, the lock-rotor roller 915 contacts the proximal end R on the profile of the lock-rotor cam 905, and the lock-rotor bayonet projection 913 exits the spline of the gear 801 to allow rotation of the intermediate housing 402;
the lock rotation driving lever 903 is switched between a driving lever rotation prohibiting position (shown in fig. 14 and 17) and a driving lever rotation permitting position (shown in fig. 7 and 12) when slid;
when the lock rotation driving rod 903 is at the driving rod rotation prohibiting position, the lock rotation bayonet 902 is at the bayonet rotation prohibiting position;
when the lock rotation driving rod 903 is at the driving rod rotation aligning position, the lock rotation bayonet 902 is at the bayonet rotation aligning position;
when the lock rotation driving rod 903 slides from the driving rod forbidden position to the driving rod quasi position, the lock rotation driving rod 903 drives the lock rotation crankshaft 904 to rotate along the anticlockwise direction P, the lock rotation roller 915 moves from the far end Q to the near end R along the profile of the lock rotation cam 905, and the lock rotation bayonet 902 slides from the bayonet forbidden position to the bayonet quasi position;
when the lock rotation driving rod 903 slides from the driving rod quasi-position to the driving rod forbidden position, the lock rotation driving rod 903 drives the lock rotation crankshaft 904 to rotate along the clockwise direction O, the lock rotation roller 915 moves from the near end R to the far end Q along the profile of the lock rotation cam 905, and the lock rotation bayonet 902 slides from the bayonet quasi-position to the bayonet forbidden position;
when the ear 201 is inserted into the slot 404 from the outside of the slot 404, the ear 201 presses the inclined surface 919 of the lock rotation driving lever to slide the lock rotation driving lever 903 from the driving lever forbidden position to the driving lever quasi-position, and finally the protrusion 918 of the lock rotation driving lever abuts against the lower edge 206 of the ear, and the lock rotation driving lever 903 is in the driving lever quasi-position.
After the lug 201 is pulled out of the slot 404, the lock rotation torsion spring 906 drives the lock rotation crankshaft 904 to rotate in the clockwise direction O, the lock rotation driving rod 903 returns to the driving rod rotation inhibiting position from the driving rod rotation inhibiting position, the lock rotation cam 905 drives the lock rotation locking pin 902 to overcome the acting force of the lock rotation compression spring 907, the lock rotation roller 915 moves from the near end R to the far end Q along the profile of the lock rotation cam, and the lock rotation locking pin 902 slides from the locking pin rotation inhibiting position to the locking pin rotation inhibiting position.
The second ear inclined plane 207 is arranged on the ear 201, and when the ear 201 is inserted into the slot 404 from the outside of the slot 404, the second ear inclined plane 207 of the ear presses against the lock rotation driving rod inclined plane 919 to enable the lock rotation driving rod 903 to slide from the driving rod forbidden position to the driving rod quasi-position; the second lug inclined plane is arranged, so that the lug can drive the lock rotation driving rod to slide.
A lock rotation bracket 923 is arranged in the lock rotation cavity 909, and the lock rotation crankshaft 904 is rotatably supported on the lock rotation bracket 923;
a fixed mounting plate 924 is arranged on the lock rotating crankshaft 904, one elastic arm of the lock rotating torsion spring is mounted on the lock rotating bracket 923, and the other elastic arm of the lock rotating torsion spring is mounted on the fixed mounting plate 924;
the lock rotation housing 901 spans between the rotation limiting chamber 406 and the slot 404.
In this embodiment, the locking driving rod is located at the rotation prohibiting position of the driving rod when the ear is not inserted into the slot.
In this embodiment, the first ear portion inclined surface of the ear portion is connected between the upper edge of the ear portion and the end surface of the ear portion,
the second ear bevel of the ear is connected between the lower edge of the ear and the end face of the ear.
The two sides of the locking/rotating bayonet lock protruding part 913 of this embodiment are respectively provided with a locking/rotating bayonet lock inclined surface which is the same as the two sides of the rotation limiting bayonet lock protruding part 813 and is used for being matched with the tooth surface of the gear 801, and the locking/rotating bayonet lock protruding part 913 is in a conical shape.
The locking and rotating pressure spring 907 of the present embodiment is fitted outside the locking and rotating bayonet lock protrusion 913.
The locking mechanism of the invention adopts a cam mechanism (namely the matching of the locking cam and the locking roller) to control the sliding of the locking rotating bayonet lock, can avoid the phenomenon that the locking rotating bayonet lock moves to the bayonet lock accurate rotating position under the relative action of the gear when the locking rotating bayonet lock is at the bayonet lock forbidden rotating position, and actually avoids the phenomenon that the middle shell can still rotate when the locking rotating bayonet lock is at the bayonet lock forbidden rotating position, namely the locking rotating bayonet lock can not slide under the condition that the locking rotating cam does not rotate, thus ensuring the locking of the middle shell.
The locking and rotating mechanism realizes that the locking and rotating driving rod returns to the driving rod quasi-rotating position from the driving rod quasi-rotating position after the lug part is pulled out of the slot through the locking and rotating torsion spring, has simple structure and reasonable design, and can realize the reciprocating motion of the locking and rotating driving rod by adopting fewer parts.
The locking rotating mechanism enables the locking rotating roller to always contact the profile of the locking rotating cam by arranging the locking rotating pressure spring, so that the locking rotating cam is effectively matched with the locking rotating roller.
The locking lug mechanism, the rotation limiting mechanism, the rotation locking mechanism and the ejecting mechanism are independent modular structures, so that the locking lug mechanism, the rotation limiting mechanism, the rotation locking mechanism and the ejecting mechanism can be conveniently installed in a shell, the production efficiency is improved, and the production cost is reduced.
The invention was created from the following assumptions and problems: if can assemble the face guard with helmet body when using, detach helmet body when not using, so just can save a lot of spaces when depositing, can be even will pull down ground cover and fill in helmet body, like this, the actual occupation space of whole motorcycle helmet equals the shared space of helmet body, has saved the shared space of face guard and helmet body assembly relation. However, the visor of the existing motorcycle helmet can be detached only by a special tool (such as a screwdriver). This makes the mask difficult and time consuming to assemble and disassemble. The invention is created in order to realize the above conception and solve the problem of difficult assembly and disassembly of the mask.
When the mask is disassembled, only the buttons of the connecting mechanisms on the two sides are needed to be pressed respectively, the lug bolt protruding parts of the lug locking mechanisms of the connecting mechanisms exit from the notches of the lug parts, the ejecting push block of the ejecting mechanism slides from the compression position to the ejecting position to push the lug parts to move towards the direction of exiting the slot, and when the lug parts are pulled out of the slot, the protruding parts of the locking driving rod are separated from the lower edge of the lug parts to enable the locking driving rod to return to the rotation forbidding position of the driving rod;
when the face mask is installed, the ear parts on two sides of the face mask are respectively inserted into the slot of the connecting mechanism, in the process that the ear parts are inserted into the slot, the inclined planes of the first ear parts of the ear parts abut against the inclined planes of the lock ear bolts to enable the lock ear bolts to slide from the locking position to the releasing position, the inclined planes of the second ear parts of the ear parts abut against the inclined planes of the lock rotation driving rods to enable the lock rotation driving rods to slide from the driving rod forbidden position to the driving rod quasi-rotation position, the end surfaces of the ear parts abut against the outer plate to push the ejection push block to slide from the ejection position to the compression position, finally, the protruding parts of the lock ear bolts fall into the notches on the ear parts, the protruding parts of the lock rotation driving rods abut against the lower edges of the ear parts, the lock rotation driving.
Claims (8)
1. The utility model provides a lock favourable turn constructs for on the motorcycle helmet, this motorcycle helmet includes helmet body and face guard, and helmet body's both sides are equipped with a coupling mechanism respectively, and the both sides of face guard are equipped with an ear respectively, and every ear is connected with a coupling mechanism respectively, and its characterized in that, each coupling mechanism includes:
the helmet comprises a helmet body, a shell, a connecting piece and a connecting piece, wherein the shell comprises an inner shell, a middle shell and an outer shell, the inner shell and the outer shell are respectively arranged on two sides of the middle shell, the inner shell is fixedly arranged on the helmet body, the middle shell is rotatably arranged on the inner shell, the outer shell is fixedly arranged on the middle shell, and a slot for plugging and unplugging an ear part is formed between the outer shell and the middle shell;
and the locking and rotating mechanism is arranged in the middle shell, allows the middle shell to rotate after the lug parts are inserted into the slots, and prevents the middle shell from rotating after the lug parts are pulled out of the slots.
2. A locking mechanism as claimed in claim 1, wherein:
the helmet body is provided with a mounting stud, the inner shell is provided with a positioning convex column, a central hole is formed in the positioning convex column, the middle shell is provided with a rotating hole, the positioning convex column is in a stepped shaft shape and comprises a large-diameter section and a small-diameter section, and a convex shoulder is formed at the joint of the large-diameter section and the small-diameter section;
the middle shell is rotatably sleeved outside the small-diameter section of the positioning convex column through the rotating hole, the mounting stud is inserted into the central hole, a screw is inserted into the central hole and is in threaded fit with the mounting stud, the head of the screw abuts against the end part of the small-diameter section of the positioning convex column to fasten the inner shell on the helmet body, and the middle shell is limited between the head of the screw and the convex shoulder.
3. A locking mechanism as claimed in claim 2, wherein:
each connecting mechanism also comprises a rotation limiting mechanism which enables the middle shell to rotate under the action of a preset external force;
the rotation limiting mechanism comprises a gear, a rotation limiting shell, a rotation limiting clamping pin, a rotation limiting pressure spring and a rotation limiting jacking piece;
the gear is fixedly arranged on the large-diameter section of the positioning convex column;
the rotation limiting shell is fixedly arranged on the middle shell, a rotation limiting chute is arranged in the rotation limiting shell, and a rotation limiting shell opening communicated with the rotation limiting chute is arranged on the rotation limiting shell;
the rotation limiting jacking piece comprises a rotation limiting top plate, a rotation limiting screw rod and a rotation limiting hand wheel, wherein the rotation limiting top plate is slidably arranged in a rotation limiting chute, one end of the rotation limiting screw rod is pressed against the rotation limiting top plate, the other end of the rotation limiting screw rod extends out of the rotation limiting shell and is connected with the rotation limiting hand wheel, and the rotation limiting screw rod is in threaded fit with the rotation limiting shell;
the rotation limiting bayonet lock comprises a rotation limiting bayonet lock sliding fit part and a rotation limiting bayonet lock bulge which are connected together, the rotation limiting bayonet lock sliding fit part is slidably arranged in the rotation limiting sliding groove, the rotation limiting bayonet lock bulge extends out of the rotation limiting shell from an opening of the rotation limiting shell and extends into a gear tooth groove of the gear, and the rotation limiting bayonet lock bulge jumps into the gear tooth groove of the other gear from the gear tooth groove of the currently extending gear when the middle shell rotates;
both sides of the rotation limiting bayonet lock are respectively provided with a rotation limiting bayonet lock inclined plane;
the rotation limiting pressure spring is arranged in the rotation limiting sliding groove, one end of the rotation limiting pressure spring abuts against the rotation limiting clamping pin sliding fit portion, the other end of the rotation limiting pressure spring abuts against the rotation limiting top plate, and the rotation limiting hand wheel is rotated to drive the rotation limiting top plate to move close to or far away from the rotation limiting clamping pin sliding fit portion.
4. A locking mechanism as claimed in claim 3, wherein:
a rotation limiting chamber is formed between the inner shell and the middle shell;
the lock rotation mechanism comprises a lock rotation shell, a lock rotation bayonet lock, a lock rotation driving rod, a lock rotation crankshaft, a lock rotation cam, a lock rotation torsion spring, a lock rotation compression spring and a lock rotation connecting rod;
a lock rotation accommodating cavity is arranged in the lock rotation shell, a lock rotation first opening and a lock rotation second opening are arranged on the lock rotation shell, and the lock rotation first opening and the lock rotation second opening are both communicated with the lock rotation accommodating cavity;
the locking rotating bayonet lock comprises a locking rotating bayonet lock sliding fit part and a locking rotating bayonet lock protruding part which are connected together, the locking rotating bayonet lock sliding fit part is slidably arranged in the locking rotating cavity, the locking rotating bayonet lock protruding part extends out of the locking rotating cavity from a locking rotating first opening and extends into the rotation limiting chamber, a locking rotating wheel frame is arranged on the locking rotating bayonet lock sliding fit part, and a locking rotating roller is arranged on the locking rotating wheel frame;
the lock rotation driving rod comprises a lock rotation driving rod sliding matching part and a lock rotation driving rod protruding part which are connected together, the lock rotation driving rod sliding matching part is slidably arranged in the lock rotation containing cavity, the lock rotation driving rod protruding part extends out of the lock rotation containing cavity from the lock rotation second opening and extends into the slot, and a lock rotation driving rod inclined surface is arranged on the lock rotation driving rod protruding part;
the sliding direction of the locking and rotating bayonet lock is parallel to that of the locking and rotating driving rod;
the lock rotation crankshaft is rotatably arranged in the lock rotation accommodating cavity, the lock rotation cam is fixedly arranged on the lock rotation crankshaft, the lock rotation crankshaft is provided with a radially offset connecting rod journal, one end of the lock rotation connecting rod is hinged on the connecting rod journal, and the other end of the lock rotation connecting rod is hinged on the slide matching part of the lock rotation driving rod;
the profile of the lock rotating cam is provided with a far end and a near end, the distance from the far end to the rotating center of the lock rotating cam is N, the distance from the near end to the rotating center of the lock rotating cam is M, wherein N is larger than M;
the locking rotating pressure spring is arranged in the locking rotating cavity, one end of the locking rotating pressure spring abuts against the locking rotating shell, the other end of the locking rotating pressure spring abuts against the sliding matching part of the locking rotating bayonet lock, and the locking rotating pressure spring enables a locking rotating roller of the locking rotating bayonet lock to keep contact with the outline of the locking rotating cam;
the lock rotating torsion spring is sleeved on the lock rotating crankshaft, one elastic arm of the lock rotating torsion spring is arranged on the lock rotating shell, the other elastic arm of the lock rotating torsion spring is arranged on the lock rotating crankshaft, and the lock rotating torsion spring enables the lock rotating crankshaft to have a tendency of rotating in the clockwise direction;
when the locking and rotating bayonet lock slides, the locking and rotating bayonet lock is switched between a bayonet lock rotation prohibiting position and a bayonet lock rotation aligning position;
when the locking rotary bayonet lock is positioned at the bayonet lock rotation prohibiting position, the locking rotary roller is contacted with the far end on the outline of the locking rotary cam, and the convex part of the locking rotary bayonet lock extends into the gear tooth groove;
when the locking rotating bayonet lock is in the bayonet lock quasi-rotating position, the locking rotating roller is contacted with the near end on the outline of the locking rotating cam, and the convex part of the locking rotating bayonet lock exits from the gear tooth groove;
when the lock rotation driving rod slides, the lock rotation driving rod is switched between a driving rod rotation forbidding position and a driving rod rotation aligning position;
when the locking driving rod is at the rotation prohibiting position of the driving rod, the locking rotary bayonet is at the rotation prohibiting position of the bayonet;
when the locking driving rod is positioned at the driving rod quasi-rotation position, the locking rotating bayonet is positioned at the bayonet quasi-rotation position;
when the locking driving rod slides from the driving rod forbidden position to the driving rod quasi-position, the locking driving rod drives the locking crankshaft to rotate along the anticlockwise direction, the locking roller moves from the far end to the near end along the profile of the locking cam, and the locking bayonet lock slides from the bayonet lock forbidden position to the bayonet lock quasi-position;
when the lock rotation driving rod slides from the driving rod quasi-rotation position to the driving rod forbidden rotation position, the lock rotation driving rod drives the lock rotation crankshaft to rotate clockwise, the lock rotation roller moves from the near end to the far end along the profile of the lock rotation cam, and the lock rotation bayonet lock slides from the bayonet lock quasi-rotation position to the bayonet lock forbidden rotation position;
when the ear part is inserted into the slot from the outside of the slot, the ear part presses the inclined surface of the locking driving rod to enable the locking driving rod to slide from the driving rod forbidden position to the driving rod quasi-position.
5. The lock rotation mechanism of claim 4, wherein each coupling mechanism further comprises:
the lug locking mechanism is arranged in the shell and used for locking the lug part inserted into the slot so as to prevent the lug part from being pulled out of the slot;
a button installed in the housing for a driver to manually press, the button being coupled with the lug locking mechanism, the lug locking mechanism releasing the lug inserted into the slot to allow the lug to be pulled out of the slot when the button is pressed;
and the ejecting mechanism is arranged in the shell, so that the ear part inserted into the slot has a tendency of exiting the slot.
6. A locking mechanism as claimed in claim 5, wherein:
the lock lug mechanism comprises a lock lug shell, a lock lug bolt, a lock lug driving rod, a lock lug connecting rod, a lock lug turning rod and a lock lug torsion spring;
a lock lug accommodating cavity is formed in the lock lug shell, a lock lug fixing shaft is arranged in the lock lug accommodating cavity, a lock lug first opening and a lock lug second opening are formed in the lock lug shell, and the lock lug first opening and the lock lug second opening are communicated with the lock lug accommodating cavity;
the lock lug bolt comprises a lock lug bolt sliding fit part and a lock lug bolt protruding part which are connected together, the lock lug bolt sliding fit part is slidably arranged in the lock lug cavity, and the lock lug bolt protruding part extends out of the lock lug cavity from a first opening of the lock lug and extends into the slot;
the lock lug driving rod comprises a lock lug driving rod sliding fit part and a lock lug driving rod protruding part which are connected together, the lock lug driving rod sliding fit part is slidably arranged in the lock lug accommodating cavity, the lock lug driving rod protruding part extends out of the lock lug accommodating cavity from a second opening of the lock lug, and the button is fixedly arranged on the lock lug driving rod protruding part;
the sliding direction of the lock lug bolt is vertical to that of the lock lug driving rod;
the lock lug connecting lever comprises a short arm and a long arm which are connected together, one end of the short arm is connected with one end of the long arm, the other end of the short arm is provided with a lock lug roller, the other end of the long arm is hinged with one end of a lock lug connecting rod, and the other end of the lock lug connecting rod is hinged with a lock lug bolt sliding matching part;
a lock lug through hole is arranged at the joint of the short arm and the long arm, and the lock lug connecting lever is rotatably sleeved on the lock lug fixing shaft through the lock lug through hole;
the lock lug driving rod sliding matching part is provided with a lock lug driving rod inclined plane, the lock lug roller is pressed against the lock lug driving rod inclined plane so as to enable the lock lug roller to slide along the lock lug driving rod inclined plane, and the button is pressed so that the lock lug driving rod drives the lock lug connecting rod to rotate around the lock lug fixing shaft in the clockwise direction;
the lock lug torsion spring is sleeved on the lock lug fixing shaft, one elastic arm of the lock lug torsion spring is arranged on the lock lug fixing shaft, the other elastic arm of the lock lug torsion spring is arranged on the lock lug connecting lever, and the lock lug torsion spring enables the lock lug connecting lever to have a tendency of rotating around the lock lug fixing shaft in the anticlockwise direction;
when the lock lug crank rod rotates, the lock lug bolt is driven to switch between a locking position and a releasing position;
notches are arranged on the ear parts;
when the lock lug crank rod rotates around the lock lug fixing shaft in the clockwise direction, the lock lug bolt is switched from the locking position to the releasing position;
when the lock lug crank rod rotates around the lock lug fixing shaft along the anticlockwise direction, the lock lug bolt is switched from the loosening position to the locking position; wherein,
when the lock lug bolt is in a locking position, the convex part of the lock lug bolt extends into the notch of the lug part inserted into the slot;
when the lug bolt is in the release position, the lug bolt projection exits the notch of the lug inserted into the slot.
7. A locking mechanism as claimed in claim 6, wherein:
the lug bolt protruding part is provided with a lug bolt inclined plane, the lug part is provided with a first lug part inclined plane, when the lug part is inserted into the slot from the outside of the slot, the first lug part inclined plane is pressed against the lug bolt inclined plane to enable the lug bolt to slide from a locking position to a loosening position;
the shell comprises an inner end face, a side face and an outer end face opposite to the inner end face, the side face is connected between the inner end face and the outer end face, the inner end face faces the helmet body, and the button protrudes out of the outer end face;
the included angle between the short arm and the long arm is a right angle;
the length of the short arm is less than that of the long arm;
the inner end surface is positioned on the inner shell, and the outer end surface is positioned on the outer shell.
8. A locking mechanism as claimed in claim 7, wherein:
the ejection mechanism comprises an ejection shell, an ejection push block and an ejection pressure spring;
the pop-up shell is internally provided with a pop-up cavity, and the pop-up shell is provided with a pop-up opening communicated with the pop-up cavity;
the pop-up push block comprises an outer plate, a middle connecting part and an inner plate, the inner plate is slidably arranged in the pop-up containing cavity, one end of the middle connecting part is connected with the inner plate, and the other end of the middle connecting part extends out of the pop-up containing cavity through the pop-up opening and is connected with the outer plate;
one end of the spring is propped against the spring shell, and the other end of the spring is propped against the inner plate;
the ejection push block slides between a compression position and an ejection position, and the ejection pressure spring is ejected to enable the ejection push block to have the tendency of returning to the ejection position;
when the ear part is inserted into the slot from the outside of the slot, the ear part presses the outer plate to push the ejecting push block to slide from the ejecting position to the compression position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465299.7A CN106108210B (en) | 2016-06-21 | 2016-06-21 | A kind of lock rotation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610465299.7A CN106108210B (en) | 2016-06-21 | 2016-06-21 | A kind of lock rotation mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106108210A true CN106108210A (en) | 2016-11-16 |
| CN106108210B CN106108210B (en) | 2018-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610465299.7A Active CN106108210B (en) | 2016-06-21 | 2016-06-21 | A kind of lock rotation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106108210B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4926854A (en) * | 1987-06-26 | 1990-05-22 | Sven Bode, Auergesellschaft GmbH | Protective helmet with a strapless breathing protection mask |
| CN2478390Y (en) * | 2001-02-28 | 2002-02-27 | 王越民 | Seat for mounting protective cover of helmet |
| CN101448418A (en) * | 2006-06-13 | 2009-06-03 | Ogkkabuto股份有限公司 | Shield mounting structure of helmet |
| CN201612195U (en) * | 2009-10-23 | 2010-10-27 | 蒋兴德 | Helmet |
| CN202127884U (en) * | 2011-01-31 | 2012-02-01 | 广州市晋颢体育用品有限公司 | Novel helmet |
| CN103371551A (en) * | 2013-07-29 | 2013-10-30 | 江门市鹏程头盔有限公司 | Connecting structure for motorcycle helmet shield |
-
2016
- 2016-06-21 CN CN201610465299.7A patent/CN106108210B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4926854A (en) * | 1987-06-26 | 1990-05-22 | Sven Bode, Auergesellschaft GmbH | Protective helmet with a strapless breathing protection mask |
| CN2478390Y (en) * | 2001-02-28 | 2002-02-27 | 王越民 | Seat for mounting protective cover of helmet |
| CN101448418A (en) * | 2006-06-13 | 2009-06-03 | Ogkkabuto股份有限公司 | Shield mounting structure of helmet |
| CN201612195U (en) * | 2009-10-23 | 2010-10-27 | 蒋兴德 | Helmet |
| CN202127884U (en) * | 2011-01-31 | 2012-02-01 | 广州市晋颢体育用品有限公司 | Novel helmet |
| CN103371551A (en) * | 2013-07-29 | 2013-10-30 | 江门市鹏程头盔有限公司 | Connecting structure for motorcycle helmet shield |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106108210B (en) | 2018-10-30 |
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Effective date of registration: 20191211 Address after: 314409 Xucun township government, Haining City, Jiaxing City, Zhejiang Province Patentee after: Haining Home Textile Industrial Base Investment Development Co.,Ltd. Address before: 528400 Guangdong province Zhongshan City Shiqi District, North Hubin Road No. 68 building 4 Room 502 Lakeview Garden Patentee before: Zhang Yulian |
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Application publication date: 20161116 Assignee: ZHEJIANG SHUNHUI SEALING Co.,Ltd. Assignor: Haining Home Textile Industrial Base Investment Development Co.,Ltd. Contract record no.: X2022330000251 Denomination of invention: A locking mechanism Granted publication date: 20181030 License type: Common License Record date: 20220620 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A locking mechanism Effective date of registration: 20231227 Granted publication date: 20181030 Pledgee: Bank of Huzhou Co.,Ltd. Pledgor: Haining Home Textile Industrial Base Investment Development Co.,Ltd. Registration number: Y2023980073645 |
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