CN217487766U

CN217487766U - Helmet and lower jaw opening and closing device thereof

Info

Publication number: CN217487766U
Application number: CN202221577380.1U
Authority: CN
Inventors: 叶有遂
Original assignee: Wenzhou Youai Plastic Products Co ltd
Current assignee: Wenzhou Youai Plastic Products Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-09-27
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses a helmet and a lower jaw switch device thereof, wherein the lower jaw switch device comprises a trigger elastic sheet which is positioned at a lower jaw part and can be rotationally arranged and a locking component which is positioned at a cheek part, the locking component comprises a lock catch which is hinged with a rotating shaft and a locking rod which is fixedly arranged, the rotating shaft is sheathed with a torsional spring which is propped against the lock catch, and the lower jaw switch device also comprises a pull rope which is arranged between the trigger elastic sheet and the lock catch; when the trigger elastic sheet is stirred, the pull rope pulls the lock catch to overcome the elastic force of the torsion spring until the lock catch is separated from the lock rod, and the locking is released; when the trigger elastic piece is loosened, the lock catch resets by virtue of the torsion spring until the lock rod is hooked, and locking is realized. Therefore, the mandible opening and closing device can be moved backwards by optimizing the structure of the mandible opening and closing device, so that sufficient space is reserved in the mandible part to fill the buffer material, the filled buffer material is increased, and the comfort is effectively improved.

Description

Helmet and lower jaw opening and closing device thereof

Technical Field

The utility model relates to a safety protection articles for use field, in particular to helmet and lower jaw switching device thereof.

Background

Drivers of motorcycles, racing cars and the like must wear helmets to protect the head, and conventional helmets usually comprise a shell body and a lower jaw, wherein the lower jaw is rotatably arranged on the shell body, so that important organs of the drivers, such as a jaw, a mouth nose, a cheek and the like, can be effectively protected in case of danger. The lower jaw needs to be opened and closed by a switch device, so that the condition of the lower jaw is prevented from being changed at will to influence the safety. In fact, the driver needs to frequently operate the switch device during the wearing of the helmet, and therefore the means for optimizing the switch device are of great importance for improving the quality of the helmet.

However, due to the structural limitations of the existing mandibular switches, existing mandibular switch devices are typically mounted directly to the mandible region of the helmet and the width of the mandible region decreases, resulting in less filling space for the cushioning material in the mandible region, which can significantly affect the comfort of the helmet.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide a helmet and a lower jaw switch device thereof, wherein the trigger elastic sheet disposed at the lower jaw position is connected to the locking assembly through the pull cord, so that the locking assembly can move backward on the premise of controlling the opening and closing of the lower jaw, so as to reserve more space at the lower jaw position for filling the buffer material, and the comfort is relatively high.

The utility model provides a lower jaw switch device of helmet, including the trigger shell fragment that is located the lower jaw position and rotatable setting and the locking Assembly that is located the cheek position, the locking Assembly includes the hasp that articulates in the pivot and the locking lever of fixed setting, the pivot cover is equipped with the torsional spring that offsets with the hasp, still include the stay cord of locating between trigger shell fragment and the hasp; when the trigger elastic sheet is stirred, the pull rope pulls the lock catch to overcome the elastic force of the torsion spring until the lock catch is separated from the lock rod, and the locking is released; when the trigger elastic sheet is loosened, the lock catch resets by virtue of the torsion spring until the lock rod is hooked, and locking is realized.

Preferably, the stay cord includes left stay cord and the right stay cord of symmetry setting, and the two one end of left stay cord and right stay cord passes through the connection ball integral type and links to each other, connects the ball and inlays and locate the spacing downthehole that the trigger shell fragment established.

Preferably, the trigger spring plate is integrally provided with a limiting plate which is opposite to the limiting hole and is abutted against the connecting ball.

Preferably, the trigger spring plate is integrally provided with an L-shaped spring plate.

Preferably, the trigger spring plate further comprises an integrally arranged hinge shaft, and two ends of the hinge shaft are respectively hinged in hinge grooves formed in the lower jaw base.

Preferably, the lower jaw base is provided with an avoiding groove for avoiding the pull rope.

Preferably, the mandible base is embedded with a rolling piece matched with a sliding groove arranged on the mandible shell.

Preferably, the lock catch further comprises a support fixedly provided with the rotating shaft, and the support is provided with a guide groove for guiding the lock catch to rotate.

Preferably, the support is provided with a slideway for receiving the pull cord.

The utility model provides a helmet, include above-mentioned arbitrary lower jaw switch device.

For background art, the utility model provides a lower jaw switching device of helmet, including triggering shell fragment, locking Assembly and stay cord, trigger the shell fragment and be located the lower jaw position, locking Assembly is located the cheek position, and locking Assembly is including articulating in the hasp of pivot and the fixed locking lever that sets up, the torsional spring that the pivot cover was equipped with.

When the trigger elastic piece is stirred, the trigger elastic piece pulls the lock catch to rotate around the rotating shaft through the pull rope, the lock catch overcomes the elastic force of the torsion spring to continuously rotate until the lock catch is separated from the lock rod, the locking assembly is unlocked, and the lower jaw is conveniently opened.

When the trigger elastic piece is loosened, the trigger elastic piece resets by means of the elastic force of the trigger elastic piece, the torsion spring restores elastic deformation, the pull rope is reversely pulled by the torsion spring, the lock catch reversely rotates around the rotating shaft under the action of the torsion spring until the lock catch restores to the initial position to hook the lock rod, the locking assembly is locked again, and the lower jaw is prevented from being accidentally opened when being worn.

According to the above, the utility model discloses an optimize lower jaw switching device's structure, realize the back and move lower jaw switching device, avoid lower jaw switching device to occupy the narrow installation space at lower jaw position, reserve sufficient space for the lower jaw position and fill buffer material, the buffer material that can fill increases, and the travelling comfort is effectively promoted.

The utility model provides a helmet, including aforementioned lower jaw switching device, have the same beneficial effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a structural diagram of a chin underlying apparatus of a helmet according to an embodiment of the present invention;

FIG. 2 is a partial enlarged view of A in FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

FIG. 4 is an enlarged view of a portion C of FIG. 1;

FIG. 5 is another view of FIG. 1;

FIG. 6 is a structural diagram of the trigger spring of FIG. 1;

FIG. 7 is a block diagram of the support of FIG. 1;

fig. 8 is a partial structural view of a chin shell of a helmet according to an embodiment of the present invention.

The reference numbers are as follows:

the device comprises a trigger elastic sheet 1, a connecting ball 2, a pull rope 3, a support 4, a rotating shaft 5, a lock catch 6, a lock rod 7, a mandible base 8 and a mandible shell 9;

the limiting plate comprises a limiting hole 11, a limiting plate 12, an L-shaped elastic sheet 13 and a hinge shaft 14;

a guide groove 41 and a slide 42;

an avoidance groove 81;

the slide groove 91.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the attached drawings and specific embodiments.

Referring to fig. 1 to 8, fig. 1 is a structural diagram of a chin switch device of a helmet according to an embodiment of the present invention; FIG. 2 is a partial enlarged view of A in FIG. 1; FIG. 3 is an enlarged view of a portion B of FIG. 1; FIG. 4 is an enlarged view of a portion C of FIG. 1; FIG. 5 is another view of FIG. 1; FIG. 6 is a structural diagram of the triggering spring plate in FIG. 1; FIG. 7 is a block diagram of the support of FIG. 1; fig. 8 is a partial structural view of a chin shell of a helmet according to an embodiment of the present invention.

The embodiment of the utility model discloses lower jaw switch device of helmet, including triggering shell fragment 1, locking Assembly and stay cord 3, trigger shell fragment 1 and be located the lower jaw position, make things convenient for the operation of wearer. The trigger elastic sheet 1 can be arranged in a rotating mode, so that the trigger elastic sheet 1 can rotate inside and outside, a wearer can control the state of the locking assembly by stirring the trigger elastic sheet 1, and the opening and closing of the lower jaw are controlled.

The locking components comprise two groups which are respectively and symmetrically arranged on the two cheek parts. The locking assembly comprises a lock catch 6 and a lock rod 7, the lock catch 6 is hinged to the rotating shaft 5, the lock catch 6 is provided with a lock hook, the lock rod 7 is fixedly arranged, and the lock hook hooks the lock rod 7, so that locking can be realized. The free end of the lock rod 7 is integrally provided with a stop flange to limit the lock hook to be separated from the lock rod 7 along the axial direction of the lock rod 7, so that the locking assembly is ensured to be locked reliably. The rotating shaft 5 is sleeved with a torsion spring, and one torsion arm of the torsion spring is abutted to the lock catch 6 and used for assisting the lock catch 6 to automatically reset.

The pull rope 3 is arranged between the trigger elastic sheet 1 and the lock catch 6, so that the locking assembly can be arranged far away from the lower jaw part, and excessive parts are prevented from being arranged at the lower jaw part with narrow space. The pull rope 3 may be a steel rope, but is not limited thereto. Two sides of the trigger spring plate 1 are respectively provided with a pull rope 3, and each pull rope 3 is correspondingly connected with a group of locking components.

When the trigger elastic piece 1 is stirred inwards, the trigger elastic piece 1 respectively pulls the lock catches 6 of the two groups of locking assemblies to synchronously rotate around the respective hinged rotating shafts 5 through the two pull ropes 3, the lock catches 6 continuously rotate by overcoming the elastic force of the torsion springs until the lock catches 6 are separated from the lock rod 7, the locking assemblies are unlocked, and the lower jaw is conveniently opened.

When loosening trigger shell fragment 1, trigger shell fragment 1 and rely on the elastic force of self to rotate outward until reseing, by extruded torsional spring recovery elastic deformation, the reverse pulling stay cord 3 of torsional spring, hasp 6 revolutes 5 antiport under the effect of torsional spring, and the locking lever 7 is caught on to hasp 6 recovery to initial position department, and locking subassembly realizes locking again, and the accident is opened when avoiding the lower jaw to wear.

To sum up, the utility model provides a lower jaw switching device through optimizing its structure, realizes the back and moves lower jaw switching device under the prerequisite of reliable locking lower jaw, avoids lower jaw switching device to occupy the narrow installation space at lower jaw position, reserves sufficient space for the lower jaw position and fills buffer material, and the buffer material that can fill increases, and the travelling comfort is effectively promoted.

The pull rope 3 specifically comprises a left pull rope and a right pull rope which are symmetrically arranged and are correspondingly connected with the lock catches 6 of the two groups of locking assemblies positioned on the left side and the right side respectively. The two one end of left stay cord and right stay cord is passed through and is connected 2 integral types of ball and link to each other, trigger shell fragment 1 and be equipped with spacing hole 11, connect ball 2 and inlay and locate spacing hole 11 in, utilize spacing hole 11 restriction to connect ball 2 and roll, make and connect ball 2 along with triggering 1 synchronization motion of shell fragment, and then make and trigger shell fragment 1 and drive 3 synchronization motions of two stay cords, and then make the state synchronization of two sets of locking subassemblies, avoid the lower jaw because of the asynchronous card of locking subassembly to die, use more safe and reliable. The connecting ball 2 can be a steel ball, and can be integrally connected with the two pull ropes 3 by adopting an integral forming process.

The trigger spring plate 1 is integrally provided with a limiting plate 12, the limiting plate 12 is L-shaped, the limiting plate 12 is opposite to the limiting hole 11, the limiting plate 12 abuts against the bottom of the connecting ball 2, and the connecting ball 2 is limited to move downwards due to gravity. Of course, can set up the spacing groove on limiting plate 12, the spacing groove is hemispherical, increases limiting plate 12 and the area of contact of connecting ball 2, effectively prescribes a limit to connect ball 2 and rolls at will, is favorable to two sets of locking Assembly states synchronous.

The L-shaped elastic sheet 13 is integrally arranged at the lower part of the trigger elastic sheet 1, and the connecting ball 2 is embedded during assembly conveniently.

The top of the triggering elastic sheet 1 is integrally provided with a hinged shaft 14, correspondingly, the lower jaw base 8 is provided with a hinged groove, and two ends of the hinged shaft 14 are respectively hinged in the hinged groove, so that the triggering elastic sheet 1 rotates around the hinged shaft 14 inside and outside, and the arrangement can make the lower jaw part of the helmet more compact in structure and provide conditions for adding buffer materials.

The lower jaw base 8 is provided with an avoiding groove 81 for avoiding the pull rope 3 and avoiding the contact of the lower jaw base 8 and the pull rope 3, so that the pull rope 3 can be operated more smoothly, and the abrasion of the pull rope 3 can be effectively avoided.

The front side of the lower jaw base 8 is hinged with a lower jaw shell 9, and the lower jaw shell 9 is used for shielding parts such as the trigger elastic sheet 1, the pull rope 3, the locking component and the like, so that the whole helmet is more attractive. In order to open and close the lower jaw shell 9 smoothly, the lower jaw base 8 is embedded with a rolling piece, correspondingly, the lower jaw shell 9 is provided with a sliding groove 91, the rolling piece is arranged in the sliding groove 91, and the rolling piece is guided to roll by utilizing the sliding groove 91, so that the rolling piece is prevented from being blocked. The rolling member may be a steel ball, and the sliding groove 91 may be an arc groove. In addition, the switching part of the lower jaw shell 9 is hidden inside the protective mask, so that the whole helmet is more beautiful.

The utility model provides a lower jaw switching device is still including setting firmly support 4 of pivot 5, and support 4 is fixed on lower jaw base 8, and guide way 41 is located to support 4, and the bottom card of hasp 6 is at guide way 41 for guide 6 revolute 5 circumferential direction of axle of hasp, avoid 6 blocks of hasp to die. Specifically, support 4 integral type is equipped with the stopper, and circular-arc guide way 41 has been seted up to the top side of stopper.

The support 4 is further provided with a slide way 42, the pull rope 3 is arranged in the slide way 42, and the slide way 42 is utilized to protect the pull rope 3, so that the pull rope 3 can move more smoothly.

The embodiment of the utility model discloses a helmet, including lower jaw switching device, still include lower jaw base 8 and lower jaw shell 9, have the same beneficial effect.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The lower jaw opening and closing device of the helmet is characterized by comprising a trigger elastic sheet (1) which is positioned at a lower jaw part and can be rotationally arranged, a locking assembly which is positioned at a cheek part, a rotating shaft (5) and a pull rope (3) which is arranged between the trigger elastic sheet (1) and the lock catch (6), wherein the locking assembly comprises a lock catch (6) which is hinged to the rotating shaft (5) and a lock rod (7) which is fixedly arranged; when the trigger elastic sheet (1) is stirred, the pull rope (3) pulls the lock catch (6) to overcome the elastic force of the torsion spring until the lock catch is separated from the lock rod (7), and the locking is released; when the trigger elastic sheet (1) is loosened, the lock catch (6) resets by means of the torsion spring until the lock rod (7) is hooked, and locking is achieved.

2. The mandibular opening and closing device of the helmet according to claim 1, wherein the pull cord (3) includes a left pull cord and a right pull cord that are symmetrically disposed, one end of the left pull cord and one end of the right pull cord are integrally connected by a connecting ball (2), and the connecting ball (2) is embedded in a limiting hole (11) formed in the trigger spring (1).

3. A chin-switch device of helmets according to claim 2 wherein the trigger spring (1) is integrally provided with a limit plate (12) opposite the limit hole (11) and against the connecting ball (2).

4. A chin-switch device for helmets according to any one of claims 1 to 3, wherein the trigger spring (1) is integrally provided with an L-shaped spring (13).

5. A mandibular opening and closing device for helmets according to any one of claims 1 to 3, wherein the triggering shell (1) further comprises an integrally provided hinge shaft (14), and both ends of the hinge shaft (14) are respectively hinged in hinge grooves provided in the mandibular base (8).

6. Chin switch device of a helmet according to claim 5, characterized in that the chin base (8) is provided with an escape groove (81) for escaping the pull cord (3).

7. A chin-switch apparatus according to claim 5, characterized in that the chin rest (8) is fitted with rolling members that fit into sliding grooves (91) provided in the chin shell (9).

8. A mandibular opening and closing device for helmets according to any one of claims 1 to 3, further comprising a holder (4) to which the rotating shaft (5) is fixed, the holder (4) being provided with a guide groove (41) for guiding the rotation of the lock catch (6).

9. Chin-switch device of helmets according to claim 8, characterized in that the holder (4) is provided with a slide (42) for receiving the pull cord (3).

10. A helmet comprising a mandibular opening and closing device according to any one of claims 1 to 9.