Half helmet

Abstract

A half helmet comprises a helmet body, a rear neck seat, a front hanging belt and a lower jaw belt, the rear neck seat is fixed to the lower portion of the helmet body and makes contact with the afterbrain or the rear neck of a human body when the half helmet is worn, the front hanging belt is arranged in front of the rear neck seat, the upper end of the front hanging belt is fixed to the helmet body, the lower end of the front hanging belt is fixed to the lower jaw belt, and at least one end of the lower jaw belt is connected with the rear neck seat in a separable mode. A limiting effect is formed by the rear neck seat, wearing is more stable, one-hand operation can be achieved during wearing, namely, the half helmet is worn in place after the lower jaw belt is moved away, then fixing of the lower jaw belt and the rear neck seat is achieved through one hand, and therefore compared with a traditional half helmet, wearing is more convenient and faster, two-hand operation is not needed, and the wearing efficiency is improved. The wearing completion rate of the half helmet can be improved, the wearing completion rate of a traditional half helmet is low, and due to the fact that the half helmet is inconvenient to wear, most people directly place the half helmet on the head to deal with inspection, the half helmet which is more convenient to wear can reduce damage caused by traffic accidents, and losses caused by the traffic accidents are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of helmets, in particular to a half helmet. Background Art

[0002] Existing half helmets are basically connected and fixed with soft straps, which is not very convenient to wear. In many cases, two hands are required to complete the wearing process, and the wearing speed is relatively slow. In addition, ordinary half helmets have a soft strap and a plug-in clip on the lower part of the top of the helmet. In addition to putting it on the head, you need to use both hands to adjust it again, insert the plug-in clip, and then adjust the tightness to fully restrain the helmet against the chin. This is difficult to operate with one hand. Therefore, it is common to see many people wearing ordinary half helmets without the plug-in clip inserted, and the helmet is not plugged in to support the chin. Therefore, many people do not use the strap to fix the half helmet when riding, and the wearing completion rate is low. In the event of an accident, the half helmet can easily fall off the head, which greatly reduces the safety factor. Utility Model Content

[0003] In view of the above-mentioned prior art, the purpose of the present invention is to provide a more practical half helmet that can be worn with one hand.

[0004] The technical solution of the utility model is achieved as follows: a half helmet comprises a helmet body, a back neck seat, a front strap and a chin strap, the back neck seat is fixed under the helmet body and contacts the back of the head or neck of the human body when the half helmet is worn, the front strap is arranged in front of the back neck seat, the upper end of the front strap is fixed to the helmet body and the lower end is fixed to the chin strap, and at least one end of the chin strap is connected to the back neck seat in a detachable manner.

[0005] The beneficial effects of such a design are: the rear neck seat forms a limiting effect, making the wearing more stable, and the wearing can be achieved with one hand, that is, the chin strap is first removed and the half helmet is put in place, and then the chin strap and the rear neck seat are fixed with one hand. Compared with the traditional half helmet, this is more convenient and quick to wear, does not require two-handed operation, and can improve the wearing completion rate of the half helmet. The traditional half helmet has a low wearing completion rate. Due to the inconvenience of wearing, basically many people simply put it on the head to deal with inspections. Using a half helmet that is more convenient to wear can reduce the damage caused by traffic accidents and reduce the losses caused by traffic accidents.

[0006] Furthermore, at least one end of the chin strap is provided with a locking structure, a snap-fit structure, an inserting structure or an suction structure connected to the back neck seat, so that the chin strap and the back neck seat are conveniently fixed together.

[0007] Furthermore, the back neck seat is provided with a suction portion, the suction portion is provided with a V-shaped stepped recess, the V-shaped stepped recess includes a first step surface, a second step surface, a first inclined surface and a second inclined surface, the first step surface and the second step surface transition through the first inclined surface and the second inclined surface, the first step surface and the second step surface both form an acute angle with the first inclined surface, the first step surface and the second step surface both form an acute angle with the second inclined surface, the first inclined surface and the second inclined surface intersect to form a V shape, and the edge profile where the first step surface intersects with the first inclined surface and the second inclined surface forms a V shape. The edge profile where the second step surface intersects the first inclined surface and the second inclined surface is V-shaped. The chin strap is provided with a matching portion corresponding to the suction portion, and the matching portion is provided with a V-shaped step convex portion. The V-shaped step convex portion includes a convex surface, a first transition surface, a second transition surface and a reference surface. The convex surface forms an acute angle with the first transition surface and the second transition surface, and the reference surface forms an acute angle with the first transition surface and the second transition surface. In this way, the V-shaped step convex portion can be inserted into the V-shaped step concave portion. Since the chin strap is mainly subjected to tension when wearing a half helmet, it can fully meet the needs of daily wear.

[0008] Furthermore, two front straps are provided on both sides, which are located on both sides of the cheeks when the half helmet is worn, so as to reduce contact with the face and make wearing more comfortable.

[0009] Furthermore, the chin strap is provided with an arc-shaped protrusion, which matches the shape of the human jaw to form a support and positioning when the half helmet is worn, so that the wearing is more stable and the half helmet is not likely to fall off the human head in an accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a three-dimensional schematic diagram of a half helmet of the present utility model;

[0011] Figure 2 This is a schematic diagram of a half helmet embodiment 1 of the present utility model;

[0012] Figure 3 This is a schematic diagram of an explosion of a half-helmet suction structure of the utility model;

[0013] Figure 4 This is a schematic diagram of a half helmet suction structure of the utility model;

[0014] Figure 5 This is a schematic diagram of the installation of a half-helmet suction structure of the utility model;

[0015] Figure 6 This is a three-dimensional schematic diagram of a half helmet embodiment 2 of the present utility model. DETAILED DESCRIPTION

[0016] As needed, detailed embodiments of the present invention are disclosed herein, but it should be understood that the disclosed embodiments are merely exemplary of the present invention, and the present invention may be implemented in different and alternative forms. The accompanying drawings are not necessarily drawn to scale, and certain features may be exaggerated or reduced to illustrate the details of specific components. Therefore, the specific structural and functional details disclosed herein should not be understood as having a limiting meaning, but merely as a representative basis to teach those skilled in the art to adopt the present invention differently. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, a half helmet includes a helmet body 1, a back neck seat 2, a front strap 3, and a chin strap 4. The back neck seat 2 is fixed below the helmet body 1 and contacts the back of the head or neck when the half helmet is worn. The front strap 3 is arranged in front of the back neck seat 2. The upper end of the front strap 3 is fixed to the helmet body 1 and the lower end is fixed to the chin strap 4. When worn, the chin strap 4 contacts the chin of the person. At least one end of the chin strap 4 is detachably connected to the back neck seat 2. At least one end of the chin strap 4 is provided with a locking structure, a snap-fit structure, an inserting structure, or an suction structure to connect to the back neck seat 2.

[0018] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, the back neck seat 2 is provided with a suction portion 21, and the suction portion 21 is provided with a V-shaped stepped recess 20. The V-shaped stepped recess 20 includes a first step surface 23, a second step surface 24, a first inclined surface 25 and a second inclined surface 26. The first step surface 23 and the second step surface 24 transition through the first inclined surface 25 and the second inclined surface 26. The first step surface 23 and the second step surface 24 are both at an acute angle to the first inclined surface 25. The first step surface 23 and the second step surface 24 are both at an acute angle to the second inclined surface 26. The first inclined surface 25 and the second inclined surface 26 intersect to form a V shape. The first step surface The edge profile where the first inclined surface 23 intersects with the second inclined surface 25, 26 forms a V-shape. The edge profile where the second stepped surface 24 intersects with the first inclined surface 25, 26 forms a V-shape. The chin strap 4 is provided with a matching portion 41 that mates with the suction portion 21. The matching portion 41 has a V-shaped stepped protrusion 43. The V-shaped stepped protrusion 43 includes a convex surface 44, a first transition surface 45, a second transition surface 46, and a reference surface 47. The convex surface 44 forms an acute angle with both the first transition surface 45, 46, and the reference surface 47 forms an acute angle with both the first transition surface 45, 46. The angle between the first inclined surface 25 and the second inclined surface 26 is a minor angle, forming an inwardly concave structure. The angle between the first transition surface 45 and the second transition surface 46 is a major angle plus a minor angle, which is 360 degrees, allowing the two to mate with each other. The suction portion 21 and the matching portion 41 are at least partially made of a rigid material, allowing the suction portion 21 and the matching portion 41 to be smoothly inserted together.

[0019] like Figure 3 、 Figure 4 and Figure 5 As shown, the suction part 21 or the matching part 41 is provided with a locking pin 27 or a locking hole 28. Preferably, a locking hole 28 is provided in the suction part 21, and a locking pin 27 is provided in the matching part 41. The locking pin 27 can move axially a certain distance relative to the matching part 41 in the pin hole 29. When the V-shaped step protrusion 43 can be inserted into the V-shaped step recess 20, the locking pin 27 can be inserted into the locking hole 28, so that the V-shaped step protrusion 43 is locked in the V-shaped step recess 20. Of course, the V-shaped step protrusion 43 and the V-shaped step recess 20 can also be set to an ordinary dovetail groove structure. The locking pin 27 can be locked by pushing it from the side of the pin hole 29 and can be unlocked by pushing it from the side of the locking hole 28. The outer side of the locking pin 27 is wrapped with rubber material to increase friction, so that the connection is more stable and the safety factor is higher.

[0020] Example 1:

[0021] like Figure 2 As shown, the chin strap 4 is provided with an arcuate protrusion 48, which matches the shape of the human jaw and provides support and positioning when the half helmet is worn. The chin strap 4 can be made of a soft textile material, but to ensure a certain shape, a sponge, foam, or other supporting material can be added to give it a certain shape.

[0022] Example 2:

[0023] like Figure 6 As shown, the front strap 3 is provided with two straps located on both sides of the cheeks when the half helmet is worn, namely a left strap 36 and a right strap 37 .

Claims

1. A half helmet, characterized by: The invention comprises a helmet body (1), a back neck seat (2), a front hanging strap (3) and a chin strap (4); the back neck seat (2) is fixed below the helmet body (1) and contacts the back of the head or the back of the neck when the half helmet is worn; the front hanging strap (3) is arranged in front of the back neck seat (2); the upper end of the front hanging strap (3) is fixed to the helmet body (1) and the lower end is fixed to the chin strap (4); at least one end of the chin strap (4) is connected to the back neck seat (2) in a detachable manner.

2. The half helmet according to claim 1, characterized in that: At least one end of the chin strap (4) is provided with a locking structure, a snap-on structure, an inserting structure or an attracting structure for connection with the back neck seat (2).

3. The half helmet according to claim 2, characterized in that: The back neck seat (2) is provided with a suction portion (21), and the suction portion (21) is provided with a V-shaped stepped recess (20), and the V-shaped stepped recess (20) includes a first stepped surface (23), a second stepped surface (24), a first inclined surface (25) and a second inclined surface (26), the first stepped surface (23) and the second stepped surface (24) transition through the first inclined surface (25) and the second inclined surface (26), the first stepped surface (23) and the second stepped surface (24) both form an acute angle with the first inclined surface (25), the first stepped surface (23) and the second stepped surface (24) both form an acute angle with the second inclined surface (26), the first inclined surface (25) and the second inclined surface (26) intersect to form a V shape, and the first stepped surface (2 3) The edge profile intersecting the first inclined surface (25) and the second inclined surface (26) is V-shaped, the edge profile intersecting the second stepped surface (24) with the first inclined surface (25) and the second inclined surface (26) is V-shaped, the chin strap (4) is provided with a matching portion (41) corresponding to the suction portion (21), the matching portion (41) is provided with a V-shaped stepped protrusion (43), the V-shaped stepped protrusion (43) includes a convex surface (44), a first transition surface (45), a second transition surface (46) and a reference surface (47), the convex surface (44) forms an acute angle with the first transition surface (45) and the second transition surface (46), and the reference surface (47) forms an acute angle with the first transition surface (45) and the second transition surface (46).

4. The half helmet according to claim 3, characterized in that: The chin strap (4) is provided with an arc-shaped protrusion (48).

5. The half helmet according to claim 1, 2, 3, or 4, characterized in that: The front hanging strap (3) is provided with two straps located on both sides of the face when the half helmet is worn.

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