Ventilation opening and closing adjusting structure for safety helmet

Abstract

The utility model discloses a ventilation on-off adjusting structure for a safety helmet. The ventilation on-off adjusting structure comprises a helmet shell, a plurality of ventilation mounting areas are arranged on the helmet shell, and each ventilation mounting area comprises a sliding adjusting hole, a positioning mounting hole and a ventilation hole; the helmet shell is provided with a ventilation adjusting device through the positioning mounting hole, the ventilation adjusting device comprises a ventilation adjusting plate and a positioning buckle, and the ventilation adjusting plate is provided with a limiting sliding hole, a mounting through hole and a pushing convex block; the positioning buckle penetrates through the positioning mounting hole outside the helmet shell, the pushing protruding block is correspondingly located in the sliding adjusting hole, and the ventilation adjusting plate is installed in the helmet shell in a radian fit mode. The connecting structure is more stable in positioning, fully guarantees the stability of connection and adjustment of the ventilation adjusting plate, is very convenient to install and connect, is attractive in ventilation design on the helmet shell, fully guarantees the ventilation effect through the design of the ventilation holes, can adjust the ventilation degree according to needs, and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of safety helmet technology, and specifically to a ventilation opening and closing adjustment structure for safety helmets. Background Technology

[0002] Wearing a safety helmet according to the environment is intended to prevent or reduce head injuries from external impacts. However, after prolonged wear, safety helmets can easily become stuffy, causing the head to overheat and sweat, leading to discomfort. Therefore, existing safety helmets typically have ventilation holes. Some helmets simply have ventilation holes on the visor, while others have adjustable ventilation panels. However, the ventilation hole design of existing helmets is ineffective, the ventilation adjustment mechanism is inconvenient to assemble and disassemble, and the installation is unstable and prone to wobbling. Furthermore, the design is not aesthetically pleasing. Therefore, improvements are needed to address the shortcomings of the existing design. Summary of the Invention

[0003] The purpose of this invention is to solve the problems mentioned in the background art and to provide a ventilation opening and closing adjustment structure for safety helmets.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a ventilation opening and closing adjustment structure for a safety helmet, including a helmet shell; the helmet shell is provided with multiple ventilation installation areas, each including a sliding adjustment hole, a positioning installation hole, and a ventilation hole; a ventilation adjustment device is installed on the helmet shell through the positioning installation hole, the ventilation adjustment device including a ventilation adjustment plate and a positioning buckle, the ventilation adjustment plate being provided with a limiting sliding hole, a mounting through hole, and a pushing protrusion; the positioning buckle passes through the positioning installation hole on the outside of the helmet shell, and after the mounting through hole on the ventilation adjustment plate corresponds to the end of the positioning buckle, the ventilation adjustment plate is pushed so that the end of the positioning buckle is in the limiting sliding hole, and at the same time the end of the positioning buckle abuts against the side of the ventilation adjustment plate, and the pushing protrusion is correspondingly in the sliding adjustment hole, the ventilation adjustment plate is installed inside the helmet shell with a curved fit, and the sliding stroke of the pushing protrusion in the sliding adjustment hole limits the end of the positioning buckle to slide only in the limiting sliding hole.

[0005] In the headlamp mounting and adjustment structure of the above-mentioned rescue mine lamp, a positioning boss is provided inside the cap shell, and the positioning boss is located in the limiting sliding hole. The side of the positioning boss and the side of the limiting sliding hole form a positioning abutment.

[0006] In the headlamp mounting and adjustment structure of the above-mentioned rescue mine lamp, multiple sliding adjustment holes are provided, and the number of pushing protrusions corresponds to the number of sliding adjustment holes.

[0007] In the headlamp mounting and adjustment structure of the above-mentioned rescue mine lamp, the ventilation holes are respectively arranged on both sides of the sliding adjustment hole, and multiple ventilation holes are provided on each side of the sliding adjustment hole. The ventilation holes consist of upper and lower layers.

[0008] In the headlamp mounting and adjustment structure of the aforementioned rescue mine lamp, auxiliary air inlets are also provided on both sides of the sliding adjustment hole.

[0009] In the headlamp mounting and adjustment structure of the above-mentioned rescue mine lamp, a ventilation hole air inlet protrusion is provided between the adjacent ventilation holes on both sides of the sliding adjustment hole.

[0010] In the headlamp mounting and adjustment structure of the above-mentioned rescue mine lamp, auxiliary air inlet plate protrusions are respectively provided between adjacent sliding adjustment holes and between the sliding adjustment hole and the auxiliary air inlet hole.

[0011] In the headlamp mounting and adjustment structure of the aforementioned rescue mine lamp, the ventilation inlet protrusions on both sides of the sliding adjustment hole are inclined toward the sliding adjustment hole.

[0012] In the headlamp mounting and adjustment structure of the above-mentioned rescue mine lamp, a positioning hole groove is provided on the outside of the cap shell corresponding to the mounting perforation, and the end of the positioning buckle is located in the positioning hole groove.

[0013] In the headlamp installation and adjustment structure of the above-mentioned rescue mine lamp, the adjacent sliding adjustment hole is provided with a sliding positioning boss, and the ventilation adjustment plate is provided with a sliding positioning groove 18 that cooperates with the sliding positioning boss.

[0014] The beneficial effects of this utility model are:

[0015] In this invention, the connection structure between the ventilation adjustment plate and the cap shell is more stable. Positioning structures are provided between the positioning buckle and the ventilation adjustment plate, and between the ventilation adjustment plate and the cap shell, which fully ensures the stability of the connection and adjustment of the ventilation adjustment plate. The installation and connection of the ventilation adjustment plate is also very convenient; the installation and connection can be completed by applying force and pushing. The ventilation design on the cap shell is aesthetically pleasing, and the design of the ventilation holes fully ensures the ventilation effect. The ventilation size can be adjusted as needed, making it convenient to use. Attached Figure Description

[0016] Figure 1 This is an exploded view of the present invention;

[0017] Figure 2 , Figure 3 These are perspective views of this utility model from two different directions;

[0018] Figure 4 , Figure 5 , Figure 6This is a perspective view of the cap shell from three different directions in this utility model. Detailed Implementation

[0019] The present invention will be further described in conjunction with the accompanying drawings.

[0020] Please see Figures 1 to 6 This utility model provides a ventilation opening and closing adjustment structure for a safety helmet, including a helmet shell 1; the helmet shell 1 is provided with a plurality of ventilation installation areas 2, each ventilation installation area 2 including a sliding adjustment hole 3, a positioning installation hole 4, and a ventilation hole 5; the helmet shell 1 is equipped with a ventilation adjustment device through the positioning installation hole 4, the ventilation adjustment device including a ventilation adjustment plate 6 and a positioning buckle 7, the ventilation adjustment plate 6 is provided with a limit sliding hole 8, a mounting through hole 9, and a pushing protrusion 10.

[0021] During installation, the positioning buckle 7 passes through the external positioning mounting hole 4 of the cap shell 1. After the mounting through hole 9 on the ventilation adjustment plate 6 aligns with the end of the positioning buckle 7, the ventilation adjustment plate 6 is pushed so that the end of the positioning buckle 7 is in the limiting sliding hole 8. At the same time, the end of the positioning buckle 7 abuts against the side of the ventilation adjustment plate 6. After being pushed into place, the pushing protrusion 10 is positioned in the corresponding sliding adjustment hole 3. The ventilation adjustment plate 6 is installed inside the cap shell 1 with a curved fit. In use, by pushing the positioning buckle 7, the ventilation adjustment plate 6 can be driven to slide along it inside the cap shell 1, thereby realizing the opening and closing of the ventilation hole 5 and the adjustment of the opening size. Moreover, the sliding adjustment hole 3 can also realize ventilation. The sliding stroke of the pushing protrusion 10 in the sliding adjustment hole 3 limits the end of the positioning buckle 7 to slide only in the limiting sliding hole 8.

[0022] Furthermore, a positioning boss 11 is provided inside the cap shell 1, which is located in the limiting sliding hole 8. The side of the positioning boss 11 and the side of the limiting sliding hole 8 form a positioning abutment. The ventilation adjustment plate 6 moves so that the end of the positioning buckle 7 is in the limiting sliding hole 8, and the positioning boss 11 is also in the limiting sliding hole 8, thereby further positioning the ventilation adjustment plate 6.

[0023] Furthermore, the sliding adjustment hole 3 is provided with multiple holes, and the number of pushing protrusions 10 corresponds to the number of sliding adjustment holes 3. At the same time, ventilation holes 5 are provided on both sides of the sliding adjustment hole 3, with multiple ventilation holes 5 on each side of the sliding adjustment hole 3. The ventilation holes 5 consist of upper and lower layers. This achieves a better air intake adjustment effect and better performance for Fang Baini.

[0024] To further improve the ventilation effect, auxiliary air inlets 12 are also provided on both sides of the sliding adjustment hole 3.

[0025] Furthermore, a ventilation inlet protrusion 13 is provided between adjacent ventilation holes 5 on both sides of the sliding adjustment hole 3, and auxiliary air inlet plate protrusions 14 are provided between adjacent sliding adjustment holes 3 and between the sliding adjustment hole 3 and the auxiliary air inlet hole 12, respectively. The ventilation inlet protrusions 13 on both sides of the sliding adjustment hole 3 are inclined towards the sliding adjustment hole 3. The design of the ventilation inlet protrusions 13 and the auxiliary air inlet plate protrusions 14 can guide the airflow along the surface of the helmet shell, thereby improving the ventilation and heat dissipation effect of the helmet.

[0026] To further improve the firmness of the connection between the ventilation adjustment plate 6 and the cap shell 1, a positioning slot 15 is provided on the outside of the cap shell 1 at the corresponding installation through hole 9, and the end of the positioning buckle 7 is located in the positioning slot 15; a sliding positioning boss 16 is provided on the adjacent sliding adjustment hole 3, and a sliding positioning groove 18 is provided on the ventilation adjustment plate 6 to cooperate with the sliding positioning boss 16.

[0027] The above provides a detailed description of a ventilation opening and closing adjustment structure for a safety helmet provided by the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the technical solution disclosed in this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A ventilation opening and closing adjustment structure for a safety helmet, comprising a helmet shell (1); characterized in that: The cap shell (1) is provided with multiple ventilation mounting areas (2), each of which includes a sliding adjustment hole (3), a positioning mounting hole (4), and a ventilation hole (5). The cap shell (1) is equipped with a ventilation adjustment device through the positioning mounting hole (4). The ventilation adjustment device includes a ventilation adjustment plate (6) and a positioning buckle (7). The ventilation adjustment plate (6) is provided with a limit sliding hole (8), a mounting through hole (9), and a pushing protrusion (10). The positioning buckle (7) passes through the positioning mounting hole (4) on the outside of the cap shell (1). After the mounting hole (9) on the ventilation adjustment plate (6) corresponds to the end of the positioning buckle (7), the ventilation adjustment plate (6) is pushed so that the end of the positioning buckle (7) is in the limiting sliding hole (8) and the end of the positioning buckle (7) abuts against the side of the ventilation adjustment plate (6). The pushing protrusion (10) is correspondingly in the sliding adjustment hole (3). The ventilation adjustment plate (6) is installed inside the cap (1) with the arc matching. The sliding stroke of the pushing protrusion (10) in the sliding adjustment hole (3) limits the end of the positioning buckle (7) to slide only in the limiting sliding hole (8).

2. The ventilation opening and closing adjustment structure for a safety helmet according to claim 1, characterized in that: The cap (1) is provided with a positioning boss (11), which is located in the limiting slide hole (8). The side of the positioning boss (11) and the side of the limiting slide hole (8) form a positioning abutment.

3. The ventilation opening and closing adjustment structure for a safety helmet according to claim 1, characterized in that: The sliding adjustment hole (3) is provided in multiple ways, and the number of pushing protrusions (10) is set in correspondence with the sliding adjustment hole (3).

4. The ventilation opening and closing adjustment structure for a safety helmet according to claim 1, characterized in that: The ventilation holes (5) are respectively arranged on both sides of the sliding adjustment hole (3). Each side of the sliding adjustment hole (3) is provided with multiple ventilation holes (5). The ventilation holes (5) consist of upper and lower layers.

5. The ventilation opening and closing adjustment structure for a safety helmet according to claim 1, characterized in that: Auxiliary air inlets (12) are also provided on both sides of the sliding adjustment hole (3).

6. The ventilation opening and closing adjustment structure for a safety helmet according to claim 4, characterized in that: A ventilation hole inlet protrusion (13) is provided between the adjacent ventilation holes (5) on both sides of the sliding adjustment hole (3).

7. A ventilation opening and closing adjustment structure for a safety helmet according to claim 5, characterized in that: An auxiliary air inlet plate protrusion (14) is provided between adjacent sliding adjustment holes (3) and between the sliding adjustment hole (3) and the auxiliary air inlet hole (12).

8. A ventilation opening and closing adjustment structure for a safety helmet according to claim 5, characterized in that: The ventilation hole inlet bosses (13) on both sides of the sliding adjustment hole (3) are inclined toward the sliding adjustment hole (3).

9. A ventilation opening and closing adjustment structure for a safety helmet according to claim 1, characterized in that: The cap shell (1) has a positioning slot (15) at the corresponding mounting hole (9) on the outside, and the end of the positioning buckle (7) is located in the positioning slot (15).

10. A ventilation opening and closing adjustment structure for a safety helmet according to claim 1 or 3, characterized in that: The adjacent sliding adjustment hole (3) is provided with a sliding positioning boss (16), and the ventilation adjustment plate (6) is provided with a sliding positioning groove (18) that cooperates with the sliding positioning boss (16).

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