Breathable safety helmet

Abstract

The utility model discloses a breathable safety helmet, and belongs to the field of safety appliances. The breathable safety helmet solves the problem that air holes in an existing safety helmet cannot be adjusted and cannot well adapt to external conditions, and adopts the technical measures that the breathable safety helmet comprises a shell-shaped helmet body, a containing cavity used for containing the head of a human body is formed in the helmet body, and a plurality of breathable holes are formed in the wall body of the helmet body. A shielding piece is arranged at the position of the air hole and used for shielding the air hole. The shielding piece is movably connected with the cap body, so that the shielding degree of the shielding piece to the air holes can be adjusted.

Description

Technical Field

[0001] The utility model relates to a safety helmet, in particular to a breathable safety helmet. Background Art

[0002] Safety helmets can provide safety protection for people in dangerous places. However, most existing safety helmets have sealed caps, which have relatively poor air permeability when worn on the head, and a relatively bad wearing experience.

[0003] A Chinese patent document (publication number: CN 211794563U) discloses a breathable block for a safety helmet and a safety helmet, wherein the breathable block for a safety helmet comprises a breathable block body, the breathable block body is provided with holes, and the upper hole opening of the hole is larger than the lower hole opening; the safety helmet comprises the breathable block for a safety helmet and the safety helmet body having the above-mentioned characteristics, the safety helmet body comprises a cap shell, a cap lining and a lace; the bottom surface of the lower hole opening of the breathable block body is connected to the cap shell, and the cap shell is provided with a through hole matching the lower hole opening; according to the principle of aerodynamics, the airflow flows in from the upper hole opening and flows out from the lower hole opening, the airflow is compressed, the pressure increases, a pressure difference is generated, the airflow velocity is accelerated, the temperature is reduced, and the airflow in the cap shell is increased.

[0004] Although this type of helmet can achieve the breathable function when worn, it cannot adapt to external climate changes and has relatively poor adaptability. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a breathable safety helmet which can well adapt to the changes in the external climate and provide a good wearing experience for the user.

[0006] In order to solve the technical problem, the technical solution adopted by the present invention is: a breathable safety helmet, including a shell-shaped cap body, the cap body has a cavity for accommodating a human head, and a plurality of transparent air holes are arranged on the wall of the cap body. The characteristic is that a shielding piece is provided at the position of the air hole, and the shielding piece is used to shield the air hole; the shielding piece is movably connected to the cap body, so that the shielding degree of the air hole by the shielding piece can be adjusted.

[0007] Generally, the area size of the shielding sheet can be adapted to completely shield the vents. The overlap between the shielding sheet and the vents can be adjusted according to the actual external conditions to change the gas exchange efficiency between the external air and the inside of the cap body.

[0008] Furthermore, the air holes are strip-shaped, arranged in the warp direction of the cap body, and arranged in parallel and spaced relation in the weft direction of the cap body, and the shielding piece is strip-shaped, arranged in the weft direction of the cap body. The strip-shaped air holes can well adapt to the position change of the shielding piece, and can well adjust the air permeability efficiency of the air holes.

[0009] Furthermore, a card body is integrally formed on the shielding sheet, the card body is inserted into the vent hole, and a card head is formed at the outer end of the card body. Through the plug-in cooperation between the card body and the vent hole, the shielding sheet can be well adapted to the movement, the structure is simple, and the movement stability of the shielding sheet is guaranteed.

[0010] Furthermore, the card bodies are arranged in pairs, which makes the engagement stability between the shielding sheet and the cap body good.

[0011] Furthermore, the shielding piece is fitted on the inner circumference of the cap body, and a protruding guide piece is integrally formed at the side edge of the shielding piece, and the guide piece is arranged along the direction of the inner circumference of the cap body; a strip-shaped guide hole is arranged on the guide piece, and the guide hole is arranged along the longitudinal direction of the cap body, and a positioning column is arranged on the inner circumference of the cap body, and the positioning column is inserted into the guide hole with a gap. By arranging the cooperation between the guide piece and the positioning column, the movement stability of the shielding piece during the adjustment process can be further improved.

[0012] Furthermore, the shielding sheet is fitted on the inner circumference of the cap body, and a sliding button is integrally formed on the shielding sheet, and the sliding button extends from the air vent to the outside of the cap body. By providing the sliding button, the shielding sheet can be easily adjusted from the outside of the cap body, thereby improving the convenience of operation.

[0013] Furthermore, the ventilation holes are in two groups, and the two groups of ventilation holes are respectively arranged on opposite sides of the cap body. Correspondingly, the two groups of ventilation holes are located on opposite sides of the head. By setting the two groups of ventilation holes, the ventilation efficiency of the helmet can be effectively improved.

[0014] Therefore, the utility model has the beneficial effects that a plurality of transparent air holes are arranged on the cap body, so that the airflow exchange between the inside of the cap body and the outside world can be realized, so as to reduce the temperature inside the cap body in summer. By arranging a movable shielding sheet, the air holes can be adjusted, and the shielding degree of the shielding sheet and the air holes can be adjusted, and the ventilation effect of the air holes can be adapted to the actual situation of the outside world, so as to well meet the actual requirements and make the wearing comfort of the safety helmet good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional view of the outer side of the breathable safety helmet.

[0016] Figure 2 yes Figure 1 A three-dimensional diagram of the middle cap body and the shielding sheet separated.

[0017] Figure 3 It is a three-dimensional view of the inner side of the breathable safety helmet, in which the shielding piece and the helmet body are shown separately.

[0018] In the figure: 1. cap body; 2. air vent; 3. cap brim; 4. shielding piece; 41. card body; 42. slide button; 43. guide piece; 44. guide hole; 5. positioning column. DETAILED DESCRIPTION

[0019] Combined with the drawings in the specification, the breathable safety helmet is used for people to wear and provide certain safety protection for the head of the people. The structure includes a shell-shaped cap body 1, which is generally molded in one piece from a homogeneous hard material, and the cap body 1 has a cavity for accommodating the human head. The cap body 1 is also integrally molded with a brim 3, which extends toward the outside of the cap body 1. A plurality of transparent air holes 2 are provided on the wall of the cap body 1, and the air holes 2 are used to achieve gas exchange between the inside of the cap body 1 and the outside.

[0020] A sheet-shaped shielding sheet 4 is provided on the inner wall surface of the cap body 1, and the shielding sheet 4 is located at the position of the air vent 2, and the shielding sheet 4 is used to shield the air vent 2. In hot summer, the opening of the air vent 2 can be maximized to improve the ventilation efficiency; and in cold winter, the shielding sheet 4 completely covers the air vent 2, and the ventilation efficiency at the air vent 2 is close to 0. As shown in the figure, the air vent 2 is divided into two groups, and the two groups of air vents 2 are arranged on opposite sides of the cap body 1. Correspondingly, the shielding sheet 4 is also two pieces, and the area of ​​one shielding sheet 4 is sufficient to completely block a group of air vents 2. The shielding sheet 4 is movably connected to the cap body 1, and the shielding sheet 4 can slide on the cap body 1, so that the shielding degree of the air vent 2 by the shielding sheet 4 can be adjusted. When the shielding sheet 4 completely covers the air vent 2, the air flow basically does not enter and exit the cap body 1 at the position of the air vent 2.

[0021] As shown in the figure, the air holes 2 are strip-shaped, and the arrangement direction of the air holes 2 is the longitudinal direction of the cap body 1. These air holes 2 are arranged side by side and spaced in the weft direction of the cap body 1, and the shielding sheet 4 is long and strip-shaped, and the shielding sheet 4 is arranged along the weft direction of the cap body 1, and can touch all the corresponding air holes 2.

[0022] A card body 41 is integrally formed on the shielding sheet 4. The card body 41 is arranged perpendicular to the shielding sheet 4 and is located in the middle of the length direction of the shielding sheet 4. The card body 41 is inserted into the air vents 2 and is located in the middle of a group of air vents 2. The size of the air vents 2 at the middle position is relatively larger. A clamping head is formed at the outer end of the card body 41. After the card body 41 is inserted into the air vents 2, the clamping head extends to the outside of the air vents 2 and is clamped to the outer peripheral surface of the cap body 1. The card bodies 41 are arranged in pairs, and the two clamping heads in a pair of card bodies 41 extend outward in opposite directions.

[0023] The shielding piece 4 is fitted on the inner circumference of the cap body 1, and a protruding guide piece 43 is integrally formed at the side edge of the shielding piece 4, and the guide piece 43 is arranged along the direction of the inner circumference of the cap body 1. A strip-shaped guide hole 44 is provided on the guide piece 43, and the guide hole 44 is arranged along the meridian direction of the cap body 1. A positioning column 5 is provided on the inner circumference of the cap body 1, and the positioning column 5 is intermittently inserted into the guide hole 44. In order to facilitate the adjustment of the shielding piece 4, a sliding button 42 is integrally formed on the shielding piece 4, and the sliding button 42 extends from the air vent 2 to the outside of the cap body 1. On the outside of the cap body 1, the finger moves the sliding button 42, and the shielding piece 4 can slide along the direction of the guide hole 44, thereby completing the adjustment of the shielding degree of the air vent 2 by the shielding piece 4.

Claims

1. A breathable safety helmet, comprising a shell-shaped cap body, the cap body having a cavity for accommodating a human head, and a plurality of transparent air holes are arranged on the wall of the cap body, characterized in that: A shielding piece is provided at the position of the air vent, and the shielding piece is used to shield the air vent; the shielding piece is movably connected to the cap body, so that the shielding degree of the air vent by the shielding piece can be adjusted.

2. The breathable safety helmet according to claim 1, characterized in that: The air holes are strip-shaped and arranged in the warp direction of the cap body. The air holes are arranged in parallel and spaced apart in the weft direction of the cap body. The shielding piece is strip-shaped and arranged along the weft direction of the cap body.

3. The breathable safety helmet according to claim 2, characterized in that: A card body is integrally formed on the shielding sheet. The card body is inserted into the vent hole, and a card head is formed at the outer end of the card body.

4. The breathable safety helmet according to claim 3, characterized in that: The card bodies are arranged in pairs.

5. The breathable safety helmet according to any one of claims 1 to 4, characterized in that: The shielding piece is fitted on the inner circumference of the cap body, and a protruding guide piece is integrally formed at the side edge of the shielding piece, and the guide piece is arranged along the inner circumference of the cap body; a strip-shaped guide hole is provided on the guide piece, and the guide hole is arranged along the longitudinal direction of the cap body, and a positioning column is provided on the inner circumference of the cap body, and the positioning column is inserted into the guide hole with a gap.

6. The breathable safety helmet according to any one of claims 2 to 4, characterized in that: The shielding piece is fitted on the inner circumferential surface of the cap body, and a sliding button is integrally formed on the shielding piece. The sliding button extends from the air vent to the outside of the cap body.

7. The breathable safety helmet according to any one of claims 1 to 4, characterized in that: There are two groups of air holes, which are respectively arranged on two opposite sides of the cap body.

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