CN117678827A

CN117678827A - Decorative shell structure of helmet

Info

Publication number: CN117678827A
Application number: CN202211074948.2A
Authority: CN
Inventors: 赖添德
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2024-03-12

Abstract

The invention relates to a helmet decorative shell structure which is arranged at the top of a shell of a helmet and comprises a main modeling seat, wherein the main modeling seat faces to the rear side of the helmet and comprises an upper half mouth part and two opening modeling parts, and the two opening modeling parts are arranged at two sides of a lower edge of the main modeling seat left and right. The helmet decorative shell structure of the invention adopts the visual illusion method to achieve the effect of visual illusion, when a viewer views the helmet decorative shell of the invention from the left rear or the right rear of the helmet, various facial expressions of happiness, anger, grime or happiness are created on the head of the animal by utilizing the shape change of the two opening modeling parts, and the interestingness of the appearance of the helmet is improved.

Description

Decorative shell structure of helmet

Technical Field

The invention relates to a helmet decorative shell, in particular to a helmet decorative shell structure which can show the visual effect of a three-dimensional animal head model on the shell of a helmet.

Background

The stereoscopic model of the animal head is difficult to be made because the round sphere model and the front side of the helmet need to reserve the folding and unfolding space of the eye protection lens, so that the animal head effect is presented in a plane mode by using the photo or the pattern sticker of the animal head on the helmet product in the prior art.

Some animals have long mouth shapes (such as wolves, dragon … …, etc.) or long beak shapes (such as hawks, birds … …, etc.), and if they are faithfully designed on the helmet shell, the helmet shell must be concave or convex to present the animal's mouth shape, which can reduce the safety or be impractical.

Furthermore, the three-dimensional design of animal heads does not easily show their lovely or starring appearance on limited space or special shaped articles, especially on spherical shaped helmets.

Disclosure of Invention

In view of the foregoing problems of the prior art, an object of the present invention is to provide a helmet shell structure, which can present a three-dimensional animal head shape on the shell of the helmet, and particularly can perfectly present the visual effect of the animal mouth shape of the long mouth or the long beak by using the "false image" formed by the side view angle.

In order to achieve the above-mentioned purpose, the present invention adopts the technical means of designing a helmet decoration shell structure, which is installed at a top of a shell of a helmet, and comprises a main modeling seat facing a rear side of the helmet, and comprising an upper half mouth portion and two opening modeling portions, wherein the two opening modeling portions are arranged at two sides of a lower edge of the main modeling seat left and right.

In the helmet shell structure, the helmet shell structure can further comprise ventilation covers which are respectively arranged at the left side and the right side of the main modeling seat and extend towards the front side of the helmet, and each ventilation cover is used for guiding, ventilating and radiating.

The helmet decorative shell structure can be further provided with two claw parts which are respectively arranged on the outer sides of the ventilation cover and are respectively positioned on the left side and the right side of the shell of the helmet.

The helmet decorative shell structure can be further provided with two sliding rail structures, and the ventilation cover is connected with the two sides of the main modeling seat respectively through the two sliding rail structures.

In the helmet shell structure, a surrounding periphery is arranged around each opening modeling part of the main modeling seat, a notch part can be arranged on the periphery, and the notch part of each opening modeling part is positioned at a position far away from the other opening modeling part.

In the helmet shell structure, the two opening modeling parts of the main modeling seat can be connected by an extending piece, and the extending piece extends upwards obliquely from one opening modeling part to the other opening modeling part, then extends transversely, and then extends downwards obliquely to be connected with the other opening modeling part.

In the helmet shell structure, two L-shaped sheet bodies can be arranged on the main modeling seat, the two L-shaped sheet bodies are respectively positioned at the left side and the right side of the main modeling seat, one end edge of each L-shaped sheet body is pivoted to the main modeling seat and extends towards the position of the other L-shaped sheet body, one side of each L-shaped sheet body is formed into a concave part and faces the lower edge of the upper half mouth part, and an opening modeling part is formed between each L-shaped sheet body and the lower edge of the main modeling seat.

In the helmet shell structure, the left side and the right side of the main modeling seat can be respectively fixedly connected with the ventilation cover through at least one hook clamping component.

In the helmet shell structure, each of the two opening molding portions may have a lower edge, and the lower edges of the two opening molding portions are connected by at least one connecting sheet.

In the helmet shell structure, each of the two claw parts can be in a plane shape or a three-dimensional shape drawn on the sticker.

The helmet decorative shell structure of the invention adopts the visual illusion method to achieve the effect of visual illusion, when a viewer views the helmet decorative shell of the invention from the left rear or the right rear of the helmet, various facial expressions of happiness, anger, grime or happiness are created on the head of the animal by utilizing the shape change of the two opening modeling parts, and the interestingness of the appearance of the helmet is improved.

The invention will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the invention thereto.

Drawings

Fig. 1 is a rear view of a first preferred embodiment of the present invention.

Fig. 2 is a left rear side view of the first preferred embodiment of the present invention.

Fig. 3 is a rear view of a second preferred embodiment of the present invention.

Fig. 4 is a rear view of a third preferred embodiment of the present invention.

Fig. 5 is a left rear side view of a fourth preferred embodiment of the present invention.

Fig. 6 is a left rear perspective exploded view of a fifth preferred embodiment of the present invention.

Fig. 7 is a rear view of a sixth preferred embodiment of the present invention.

Fig. 8 is a left rear side view of a sixth preferred embodiment of the present invention.

Fig. 9 is a rear view of a seventh preferred embodiment of the present invention.

Fig. 10 is a left rear side view of a seventh preferred embodiment of the present invention.

Fig. 11 is a rear view of an eighth preferred embodiment of the present invention.

Fig. 12 is a left rear side view of an eighth preferred embodiment of the present invention.

Fig. 13 is a rear view of a ninth preferred embodiment of the present invention.

Fig. 14 is a left rear side view of a ninth preferred embodiment of the present invention.

Fig. 15 is a left rear side view of a tenth preferred embodiment of the present invention.

Fig. 16 is another left rear side view of the tenth preferred embodiment of the present invention.

Fig. 17 is a left side view schematically showing a tenth preferred embodiment of the present invention in use.

Wherein, the reference numerals:

10 main modeling seat

11 upper half mouth

12, opening modeling part

121 notch portion

122 lower edge

13 extension piece

14:L-shaped tablet

15 hook clip assembly

16 connecting sheet body

17 open gap

18 intermediate air flow

20 ventilation cover

21 side air flow

22 air inlet

30 claw part

40 casing

41 Hot gas

50 sliding rail structure

Detailed Description

The technical means adopted by the invention to achieve the preset aim are further described below by matching with the drawings and the preferred embodiments of the invention.

Visual Illusion (Visual Illusion), also known as Visual Illusion, refers to the Visual Illusion caused by eye spoofing through an image to achieve artistic or magic-like effects. We often say that something must be the basis for everything, everything "see is in the eye", but what is seen in true eyes will not be wrong? Although the eye is a part of the individual's body, the image appearing through it appears reasonably correct, but stimulated by perceptual disturbances and surrounding environment (shape, color) will lead to spurious visual perception, which is an "optical illusion", for example: measuring a line segment with a ruler is straight, but the perceived image by the eye is skewed; in short, the "visual illusion phenomenon" is a phenomenon in which the size, shape, color, brightness, and relative position of an object are visually determined to be erroneous or cause contradiction. The "visual illusion" approach is mostly not logical, and the illusion is generated by the viewer when viewing the work through various images, colors and various angles, but the phenomenon of plausibility is often attractive, so people often accept visual cheating very willingly, and further seek visual special stimulus and surprise.

The invention creates a visual sense different from the prior visual sense by applying the method of 'visual illusion' to the safety helmet, presents the visual sense in another new appearance, and communicates with a user or bystanders visually, so that the work generates dual sense of surprise and interest.

Referring to fig. 1 and 2, a first preferred embodiment of a helmet shell structure of the present invention is shown, which can be installed on a top of a shell 40 of a helmet for decorating the helmet, and the helmet shell structure includes a main molding seat 10 and a ventilation cover 20.

The main molding seat 10 is a mold of an upper half of an animal head, and includes a structure above an upper half of the mouth, such as an upper half of the mouth, a nose, a face, eyes, and a forehead … …, the main molding seat 10 is mounted on a top of the outer shell 40 of the helmet and faces a rear side of the helmet, the main molding seat 10 includes an upper half mouth 11 and two opening molding portions 12, and the two opening molding portions 12 are disposed on both sides of a lower edge of the main molding seat 10 side by side.

The ventilation covers 20 are also mounted on the top of the outer shell 40 of the helmet, and are respectively disposed at the left and right sides of the main molding seat 10 and extend toward a front side of the helmet, and each ventilation cover 20 has the functions of guiding air, ventilating and dissipating heat.

In the first embodiment of the present invention shown in fig. 1 and 2, the main modeling seat 10 is a hawk head model, and the upper half mouth 11 includes the hawk head upper beak, hawk nose, hawk face, hawk eyes, and forehead … …. Therefore, when the main modeling seat 10 of the hawk head model is seen from the left rear or the right rear of the helmet, one side surface of the main modeling seat is overlapped with the image of the opening modeling part 12 positioned at the same side, so that the opening modeling part 12 and the upper half mouth part 11 are mistakenly perceived to generate an 'visual illusion' of the complete mouth part of the hawk head, and the effect of 'visual illusion' is achieved. Further, various facial expressions such as happiness, anger, funeral or funeral can be created on the hawk head according to the shape change of the opening modeling part 12.

Further, the periphery of each of the opening molding portions 12 of the main molding base 10 has a circumferential periphery, a notch 121 is formed on the circumferential periphery, the notch 121 of each of the opening molding portions 12 is located at a position far away from the other opening molding portion 12, and the notch 121 can form the mouth corner of the main molding base 10 of the hawk head molding, thereby enhancing the vividness of hawk expression.

Furthermore, the helmet shell structure can further have two claw portions 30, wherein the two claw portions 30 are mounted on the lower half portion of the outer shell 40 of the helmet and are respectively located at the left and right sides of the outer shell 40, that is, the two claw portions 30 are respectively further disposed at the outer side of the ventilation cover 20. The two claw parts 30 can be in a plane shape drawn on the sticker, or in a three-dimensional shape, and can be seen by matching with the main modeling seat 10 of the animal head modeling, thereby improving the fidelity when generating the optical illusion.

The two opening molding portions 12 of the main molding base 10 may be formed by a shape on a sticker according to design requirements. Taking fig. 1 as an example, the opening 12 may be a plane, a sticker having a pattern of the opening modeling portion 12 with an outer frame shape according to design requirements is attached to a predetermined position, and the opening modeling portion 12 is presented by utilizing a color difference, so that the visual perception of a viewer can be confused, and the opening modeling portion 12 presented in the pattern on the sticker is considered as a real opening.

Specifically, when the main molding seat 10 is white and the outer shell 40 of the helmet is black, it is expected that the two-opening molding portion 12 can be attached with a sticker having a black background color, and the sticker having a black background color is formed with the two-opening molding portion 12 by using the same color as the outer shell 40 of the helmet to be visually confused with each other and to generate a penetration feeling. More specifically, each of the opening molding portions 12 can be a ring frame disposed around a plane, and a sticker having a color matching that of the ring frame is attached to the plane, and the sticker can be any color, and the ring frame is highlighted by using a color difference, so that a person can feel that the portion where the sticker is disposed is an opening or a hole. In addition, the space surrounded by the ring frame of each opening modeling portion 12 may be designed to be concave inwards, and the concave-convex fall is used to highlight the ring frame, so that a person feels that the concave inwards is an opening or hole.

Referring to fig. 3, a second embodiment of the present invention is an extension design of the first embodiment, wherein the two opening molding portions 12 are connected by an extension piece 13, the extension piece 13 is a arch bridge like the upper half of the "convex" shape, and extends obliquely upward from one opening molding portion 12 toward the other opening molding portion 12, then extends transversely, and then extends obliquely downward to connect the other opening molding portion 12.

Referring to fig. 4, a third embodiment of the present invention is an extension design of the first embodiment, in which two L-shaped sheets 14 are disposed on the main molding seat 10, the two L-shaped sheets 14 are respectively located at the left and right sides of the main molding seat 10, one end edge of each L-shaped sheet 14 is pivotally connected to the main molding seat 10 and extends toward the position of the other L-shaped sheet 14, one side of each L-shaped sheet 14 is formed as a concave portion and faces the lower edge of the upper half mouth 11, such that the opening molding portion 12 is formed between each L-shaped sheet 14 and the lower edge of the main molding seat 10. Further, by rotating the L-shaped sheet 14, the shape of the opening molding portion 12 can be changed, thereby changing the expression of the animal head molding.

Referring to fig. 5, a fourth embodiment of the present invention is an extended design of the first embodiment, wherein only the main molding seat 10 is provided on the outer shell 40 of the helmet, and the main molding seat 10 and the ventilation cover 20 are separate components, so that the molding seat 10 can be separately installed on the outer shell 40 of the helmet.

Referring to fig. 6, a fifth embodiment of the present invention is an extension design of the first embodiment, in which a left and right two vent covers 20 are first combined and fixed with the outer shell 40 of the helmet, and the left and right sides of the main molding seat 10 are respectively and fixedly connected with the vent covers 20 by at least one hook and clip assembly 15, thereby being indirectly fixed on the outer shell 40 of the helmet. Specifically, the at least one hooking component 15 is disposed on the left side of the ventilation hood 20 on the left side, and the at least one hooking component 15 is also disposed on the right side of the ventilation hood 20 on the right side.

In addition, the ventilation cover 20 may be combined with the main molding seat 10 and then the ventilation cover 20 is combined and fixed to the outer shell 40 of the helmet. The helmet shell structure of the fifth embodiment can be assembled in a sequence according to the actual production and implementation requirements of a factory, or can be decomposed into a plurality of parts to be manufactured separately and then combined into a whole due to the difficulty in manufacturing and production of mold opening or demolding.

Referring to fig. 7 and 8, a sixth embodiment of the present invention is shown, wherein the main molding seat 10 is a shark head mold, the upper half mouth 11 of the main molding seat 10 comprises the structures of the shark head, such as the upper lip, the face, the eyes, the forehead and the upper fin … …, and the two opening molding portions 12 are disposed on two sides of the lower edge of the main molding seat 10 of the shark head mold, i.e. two sides of the upper lip of the shark head mold. Therefore, when the main molding seat 10 of the shark head mold is viewed from the left rear or the right rear of the helmet, one side surface of the main molding seat is overlapped with the image of the opening molding part 12 positioned at the same side, so that the opening molding part 12 and the upper half mouth part 11 are mistakenly recognized to generate an 'visual illusion' of the complete mouth part of the shark head, and the effect of 'visual illusion' is achieved. In addition, various facial expressions such as happiness, anger, or fun or happiness can be created on the shark head according to the shape change of the opening modeling part 12. Further, the recess 121 formed at the periphery of each of the opening modeling portions 12 may form the mouth corner of the main modeling seat 10 of the shark head modeling, thereby enhancing the sense of the expression of the shark.

Referring to fig. 9 and 10, a seventh embodiment of the present invention is shown, wherein the main molding seat 10 is a shape of a lion head, the upper half mouth 11 of the main molding seat 10 comprises the structures of the upper lip, face, nose, eyes, forehead, bristles … …, and the two opening molding portions 12 are disposed on two sides of the lower edge of the main molding seat 10 of the lion head, i.e. two sides of the upper lip of the lion head. Therefore, when the main molding seat 10 of the lion head mold is viewed from the left rear or the right rear, one side surface of the main molding seat is overlapped with the image of the opening molding part 12 positioned at the same side, so that the opening molding part 12 and the upper half mouth part 11 are mistakenly recognized to generate an 'visual illusion' of the complete mouth part of the lion head, and the effect of 'visual illusion' is achieved. In addition, various facial expressions such as happiness, anger, fun, or fun can be created on the lion or the shark head according to the shape change of the opening modeling part 12.

Furthermore, each of the two opening modeling portions 12 has a lower edge 122, and the lower edges 122 of the two opening modeling portions 12 can be respectively designed to approximate the chin modeling of a lion, so that when the main modeling seat 10 or the helmet is viewed from the left rear or the right rear, the user can see as if one lion is open to anger and roar, and the reality degree of creating the 'visual illusion' is improved.

The lion chin shape formed by the lower edge 122 of the two-opening shape portion 12 can be fixed in the following manner:

1. the lower edges 122 of the two opening modeling parts 12 can be fixedly connected with the rear edges of the two sides of the main modeling seat 10 in a manner of adhesion, locking, clamping or integrated forming … …, and the like, and are fixedly arranged on the shell 40 of the safety helmet through the main modeling seat 10;

2. the lower edge 122 of the two opening modeling parts 12 can be directly connected and fixed on the shell 40 of the safety helmet in a manner of adhesion, locking, clamping or integrally forming … …;

3. the lower edges 122 of the two opening modeling portions 12 can be fixedly connected to the ventilation cover 20 on the outer shell 40 of the helmet in a manner of being adhered, locked, clamped or integrally formed … …, and the two opening modeling portions 12 are indirectly fixed on the outer shell 40 of the helmet through the ventilation cover 20, but the lower edges 122 of the two opening modeling portions 12 can also be fixedly connected to other shells firstly and then indirectly fixed on the outer shell 40 of the helmet through the other shells; or alternatively

4. The lower edge 122 of the two opening molding portions 12 can be fixed on the outer shell 40 of the helmet by combining at least two fixing methods of the above items 1 to 3.

In addition, the notch 121 formed at the periphery of each opening modeling portion 12 may form the mouth corner of the main modeling seat 10 of the lion head modeling, thereby enhancing the liveliness of the lion expression, and the claw portions 30 respectively mounted at the left and right sides of the outer shell 40 of the safety helmet may be shaped as the lion claws, and match with the main modeling seat 10 of the lion head modeling, thereby enhancing the fidelity of generating the "visual illusion".

Referring to fig. 11 and 12, an eighth embodiment of the present invention is an extended design of the first embodiment, wherein the lower edges 122 of the two opening molding portions 12 are respectively designed to be similar to the lower beak shape of hawk, so that when viewing from the left rear or right rear of the main molding seat 10 or the helmet, it can look like a hawk to open the mouth and crow, thereby enhancing the fidelity when generating the "visual illusion", and the "illusion" formed by the side view can perfectly present the visual effect of the long beak shape of hawk. The lower edge 122 of the hawk-falcon lower beak model of the two opening modeling portion 12, like the lower edge 122 of the lion chin model of the seventh embodiment, can be fixed on the outer shell 40 of the helmet through the main modeling seat 10, directly connected and fixed on the outer shell 40 of the helmet, indirectly fixed on the outer shell 40 of the helmet through the ventilation cover 20, or fixed on the outer shell 40 of the helmet by combining at least two of the 3 fixing modes.

Referring to fig. 13 and 14, a ninth embodiment of the present invention is an extension design of the eighth embodiment, wherein the lower edges 122 of the hawk and falcon lower beak shapes of the two opening molding portions 12 can be connected by at least one connecting sheet 16, and the at least one connecting sheet 16 is used to connect the lower edges 122 of the two opening molding portions 12, so that the tip ends of the lower edges 122 of the two opening molding portions 12 can be further extended outwards, so that the left and right tip ends which may cause injury to the user or other people can be eliminated by using an extension manner, and the acute angle can be eliminated, so that the appearance of the left and right tip ends can be maintained, and the safety can be realized. In addition, the at least one connecting piece 16 may be optionally bent or notched according to design requirements, for example, when the center of the connecting piece 16 is just blocked by the upper beak of the hawk, the connecting piece 16 may be bent around or provided with at least one notch to avoid the upper beak of the hawk. In addition, the connecting piece 16 may also be in a long rod shape, and the center of the connecting piece 16 may be connected with the upper beak of hawk, so as to enhance the stability of the connecting piece 16. .

Referring to fig. 15 to 17, a tenth embodiment of the present invention is an extension design of the fifth embodiment, wherein the helmet shell structure further includes two sliding rail structures 50, the two vent covers 20 are respectively connected to the two sides of the main molding base 10 by the two sliding rail structures 50, each of the two sliding rail structures 50 can be used with a rotating member or a positioning brake member, so that the main molding base 10 is combined and fixed on the shell 40 of the helmet through the two sliding rail structures 50 and the vent cover 20, and the two sliding rail structures 50 can enable the main molding base 10 to turn back and forth relative to the vent cover 20 under a controllable fixed amplitude, thereby improving the air sucking and exhausting effects of the vent cover 20 on the helmet.

As shown in fig. 16, when the main molding seat 10 rotates and tilts to the rear side of the helmet via the sliding rail structure 50, the rear side of the main molding seat 10 is depressed downward and the front side is tilted upward, and the tilted portion forms an opening gap 17 toward the front side of the helmet, and the opening gap 17 has an air inlet function for the helmet.

As shown in fig. 17, when the motorcycle advances, the middle air flow 18 passing through the top of the outer shell 40 of the helmet can enter the main molding seat 10 in a large amount through the opening gap 17 and then be discharged from the rear of the main molding seat 10, and because the middle air flow 18 passes through the duct formed inside the main molding seat 10 in a large amount and rapidly, a negative pressure (bernoulli effect) is formed at the rear opening of the two-way hood 20, and a suction effect is generated on the side air flow 21 inside the two-way hood 20, so that the side air flow 21 entering the two-way hood 20 from an air inlet 22 at the front end of each of the two-way hoods 20 flows backward in an accelerating manner and is collected with the middle air flow 18 and then discharged. Because of the negative pressure (bernoulli effect) generated by the rapid flow of the side air flow 21 in the ventilation hood 20, the hot air 41 in the helmet is also sucked and discharged in an accelerating manner, so as to achieve the effect of cooling the user, and therefore, the user can control the size of the opening gap 17 by adjusting the rotation and inclination amplitude of the main molding seat 10, and further adjust the sucking and discharging speed and efficiency of the ventilation hood 20 on the hot air in the helmet.

The helmet decoration shell structure of the invention solves the defect that design is limited due to limitation of sphere modeling for a long time, achieves the effect of visual illusion by adopting the visual illusion method, and utilizes the shape change of the two opening modeling parts 12 to create various facial expressions of happiness, anger, fun or happiness on the animal head when a viewer views the helmet decoration shell of the invention from the left rear or the right rear of the helmet, thereby improving the interestingness of the appearance of the helmet, and in addition, the helmet decoration shell structure can be provided with the ventilation cover 20 to have the functions of diversion, ventilation and heat dissipation.

The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matters of the present invention can be made by those skilled in the art without departing from the scope of the present invention.

Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a helmet decorations shell structure, installs in a top of a shell of a helmet, its characterized in that, this helmet decorations shell structure includes a main molding seat, this main molding seat is towards a rear side of this helmet to include a half mouth portion and two opening molding portions, these two opening molding portions are left and right sides of setting up in a lower limb of this main molding seat.

2. The helmet shell structure according to claim 1, further comprising ventilation covers disposed on the left and right sides of the main molding seat, respectively, and extending toward a front side of the helmet, each ventilation cover serving as a flow guide and ventilation heat dissipation.

3. The helmet shell structure according to claim 1, further comprising two claw portions, wherein the two claw portions are respectively disposed on the outer sides of the ventilation cover and are respectively disposed on the left and right sides of the outer shell of the helmet.

4. The helmet shell structure according to claim 1, further comprising two rail structures, wherein the ventilation cover is connected to the two sides of the main molding seat by the two rail structures, respectively.

5. The helmet shell structure according to any one of claims 1 to 4, wherein the periphery of each of the opening molding portions of the main molding seat has a circumferential periphery provided with a recess portion, and the recess portion of each of the opening molding portions is located at a position away from the other opening molding portion.

6. The helmet shell structure according to any one of claims 1 to 4, wherein the two opening molding portions of the main molding seat are connected by an extension piece, and the extension piece extends from one opening molding portion to the other opening molding portion obliquely upwards, then extends transversely, and then extends obliquely downwards to connect the other opening molding portion.

7. The helmet shell structure according to any one of claims 1 to 4, wherein the main molding seat is provided with two L-shaped pieces, the two L-shaped pieces are respectively located at the left and right sides of the main molding seat, one end edge of each L-shaped piece is pivotally connected to the main molding seat and extends toward the position of the other L-shaped piece, one side of each L-shaped piece is formed as a concave portion and faces the lower edge of the upper half mouth, so that the opening molding portion is formed between each L-shaped piece and the lower edge of the main molding seat.

8. The helmet shell structure according to claim 2 or 4, wherein the left and right sides of the main molding seat are respectively and fixedly connected to the ventilation cover through at least one hooking and clamping component.

9. The helmet shell structure of any one of claims 1 to 4, wherein each of said two opening molding portions has a lower edge, and the lower edges of the two opening molding portions are connected by at least one connecting sheet.

10. The helmet shell structure according to claim 3 or 4, wherein each of the two claw portions is in a planar form or a three-dimensional form drawn on a sticker.