本发明的目的在于提供一种防护型可折叠头盔，以解决上述背景技术中提出的问

The purpose of the present invention is to provide a protective foldable helmet to solve the problems raised in the background art. <br>In order to achieve the above objective, the present invention provides the following technical solutions: a protective foldable helmet, including a support plate and a central rotating shaft mechanism penetrating the support plate, and also includes a foldable helmet body and a foldable front windshield The two ends of the helmet body are hinged with the inner end of the central shaft mechanism, the two ends of the front wind deflector are hinged with the outer end of the central shaft mechanism, and the inner side of the helmet body is fixedly connected There is a buffer layer, and a Kevlar net is fixed on the inner side of the buffer layer. <br>Preferably, the central rotating shaft mechanism includes a second rotating shaft fixed on the inner side wall of the support plate and a first rotating shaft fixed on the outer side wall of the supporting plate, and a second damping block is mounted on the first rotating shaft, The second rotating shaft is equipped with a first damping block, and a limit block is fixed on the front side of the bottom end of the support plate. <br>Preferably, there are two second damping blocks, four first damping blocks, and one end of the limiting block away from the support plate is located below the second damping block close to the support plate. <br>Preferably, the helmet body includes a first helmet shell, a second helmet shell, a third helmet shell, and a fourth helmet shell that are rotatably connected to the first damping block. Both the three helmet shells and the fourth helmet shell have first limiting arc grooves at one end close to the central rotating shaft mechanism. The first helmet shell is close to a side wall of the second helmet shell, and the A side wall of the second helmet shell close to the third helmet shell and a side wall of the third helmet shell close to the fourth helmet shell are both provided with an arc groove opposite to the first limiting arc. Adapted first limit slider. <br>Preferably, the front wind deflector includes a first wind deflector and a second wind deflector that are rotatably connected to a second damping block, and a second wind deflector is opened at one end of the second wind deflector close to the central rotating shaft mechanism. A limit arc groove, a second limit sliding block adapted to the second limit arc groove is provided on a side wall of the first wind deflector close to the second wind deflector. <br>Preferably, the buffer layer is made of EPS foamed polystyrene foam rubber material. <br>Preferably, the Kevlar net and the buffer layer are fixed to the helmet body by a screw or a buckle structure.<br>Preferably, the helmet body is made of engineering plastics, and the front windshield is made of transparent acrylic. <br>Compared with the prior art, the beneficial effects of the present invention are: the protective foldable helmet has a simple structure, low manufacturing cost, and convenient use. It consists of a first helmet shell, a second helmet shell, and a first helmet shell that can be foldably contracted or unfolded. The three helmet shells, the fourth helmet shell, the first wind deflector and the second wind deflector are stable in use and easy to carry. Moreover, the helmet is double protected by a buffer layer and a Kevlar net, which greatly improves In order to improve the safety of the head wearing the helmet, the safety protection of the head is realized, and the safety factor is high.

The purpose of the invention is to provide a protective collapsible helmet to solve the problems raised in the above background technology.<br>To achieve the above purposes, the present invention provides the following technical scheme: a protective foldable helmet, including a support plate and a central shaft mechanism running through the support plate, a foldable helmet body and a foldable front windshield, and both ends of the helmet body and the The inner end of the center shaft mechanism is articulated, the ends of the front windscreen are hinged with the outer end of the center shaft mechanism, the inner fixed connection of the helmet body is a buffer layer, and the inside of the buffer layer is fixed with a Kefra net.<br>Preferably, the central shaft mechanism comprises a second shaft fixed on the inner wall of the support plate and a first shaft fixed on the outer wall of the support plate, the first shaft is fitted with a second damping block, the second axis is fitted with a first damping block, and the front of the base end of the support plate is fixed with a finite bit.<br>Preferably, the second damping block shall have two, the first damping block shall have four, and the limit block away from one end of the support plate shall be located below the second damping block close to the support plate.<br>Preferably, the helmet body comprises a first helmet shell, a second helmet shell, a third helmet shell and a fourth helmet shell connected to the first damping block, and the second helmet shell, a third helmet shell and a fourth helmet shell are close to the end of the central shaft body with a first limit arc groove, and the first helmet shell is close to one side wall of the second helmet shell, The second helmet shell is close to the side wall of the third helmet shell and the third helmet shell is close to the side wall of the fourth helmet shell and the first limit slider appropriate to the first limit arc groove.<br>Preferably, the front windscreen comprises a first windscreen and a second windscreen connected to a second damping block, the second windscreen is close to one end of the central shaft body with a second limit arc groove, and the first windscreen is close to the side wall of the second windscreen with a second limit slider appropriate to the second limit arc groove.<br>Preferably, the buffer layer is made of EPS foaming polystyrene styrofoam material.<br>Preferably, the Kevlar mesh and the buffer layer shall be fixed to the helmet body by screw or buckle structure.<br>Preferably, the helmet body is made of engineering plastic, and the front windscreen is made of transparent sub-gram.<br>Compared with the existing technology, the beneficial effect of the present invention is: the protective type collapsible helmet structure is simple, the production cost is low, the use is convenient, by the foldable shrinkage or expansion of the first helmet shell, the second helmet shell, the third helmet shell and the fourth helmet shell and The first windscreen and the second windscreen are composed of stable and easy to carry, and the helmet is double protected by a buffer layer and a Kefra net, which greatly improves the safety of the head wearing the helmet, and achieves the safety protection of the head, with a high safety factor.

The object of the invention is to provide a protective foldable helmet to solve the problem raised in the background technology.<br>In order to achieve the above purpose, the invention provides the following technical scheme: a protective foldable helmet includes a support plate and a central rotating shaft mechanism penetrating the support plate, a foldable helmet body and a foldable front wind shield, two ends of the helmet body are hinged with the inner end of the central rotating shaft mechanism, and two ends of the front wind shield are connected with the central rotating shaft The outer end of the mechanism is hinged, the inner side of the helmet body is fixedly connected with a buffer layer, and the inner side of the buffer layer is fixedly connected with a Kevlar net.<br>Preferably, the central rotating shaft mechanism comprises a second rotating shaft fixed on the inner wall of the support plate and a first rotating shaft fixed on the outer wall of the support plate, the first rotating shaft is equipped with a second damping block, the second rotating shaft is equipped with a first damping block, and the front side of the bottom end of the support plate is fixed with a limiting block.<br>Preferably, the second damping block is provided with two, the first damping block is provided with four, and the end of the limit block away from the support plate is located under the second damping block close to the support plate.<br>Preferably, the helmet body comprises a first helmet shell, a second helmet shell, a third helmet shell and a fourth helmet shell which are rotationally connected to the first damping block, the ends of the second helmet shell, the third helmet shell and the fourth helmet shell close to the central rotating shaft mechanism are provided with a first limiting arc groove, and the first helmet shell is close to the end of the second helmet shell The side wall, the side wall of the second helmet shell close to the third helmet shell and the side wall of the third helmet shell close to the fourth helmet shell are all provided with a first limiting slider which is matched with the first limiting arc groove.<br>Preferably, the front wind deflector comprises a first wind deflector and a second wind deflector which are rotationally connected to the second damping block, one end of the second wind deflector close to the central rotating shaft mechanism is provided with a second limiting arc groove, and the plate wall on one side of the first wind deflector close to the second wind deflector is provided with a second limiting slider which is matched with the second limiting arc groove.<br>Preferably, the buffer layer is made of EPS foamed polystyrene.<br>Preferably, the Kevlar net and the buffer layer are fixed on the helmet body through a screw or a buckle structure.<br>Preferably, the helmet body is made of engineering plastic, and the front wind shield is made of transparent acrylic material.<br>Compared with the prior art, the protective foldable helmet has the advantages of simple structure, low production cost and convenient use. The protective foldable helmet is composed of a foldable and retractable first helmet shell, a second helmet shell, a third helmet shell, a fourth helmet shell, a first wind baffle and a second wind baffle, which is stable in use, easy to carry and passes through the helmet The double protection of the buffer layer and the Kevlar net greatly improves the head safety of wearing the helmet, realizes the safety protection of the head, and has a high safety factor.<br>