Helmet

Abstract

The utility model discloses a helmet which comprises a helmet body (1) with a first ventilation opening (121) and a valve (2) used for opening and closing the first ventilation opening (121), and is characterized in that the helmet body (1) comprises a helmet body (11) and a helmet shell (12) covering the top of the helmet body (11), and an interlayer (10) is formed between the outer wall of the helmet body (11) and the inner wall of the helmet shell (12); the cap body (11) is provided with a communicating opening (111) used for communicating an inner cavity of the cap body (11) with the interlayer (10), the cap shell (12) is provided with the first ventilation opening (121) used for communicating the interlayer (10) with the outside atmosphere, and the valve (2) is arranged in the interlayer (10). Compared with the prior art, the helmet meets the requirements of heat dissipation and heat preservation, the attractiveness is improved, and the valve is simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of protective gear, and particularly refers to a helmet. Background Art

[0002] As a protective gear for protecting the head safety of the user, a helmet is generally made of non-breathable materials. When worn, the head of the user cannot achieve the heat dissipation function. Therefore, ventilation openings and valves for controlling the opening and closing of the ventilation openings are provided on the helmet body to balance the heat dissipation and heat preservation requirements of the helmet body.

[0003] For example, in the Chinese patent "Airflow Control Valve Body Gain Device of a Ventilated Safety Helmet" with the patent application number CN03133186.6, a movable valve is provided at the top of the safety helmet to control the opening and closing of the air flow. In summer, the valve is pushed forward, and the air inside the helmet flows out through the large round hole to the spacing space between the valve and the rain shield to relieve the stuffiness inside the helmet; in winter, the valve is pushed to the rear to be in contact with the rain shield to close, blocking the air loss inside the helmet and blocking the heat dissipation of the safety helmet.

[0004] However, in the above solution, on the one hand, the valve is arranged on the outer wall of the helmet body, affecting the aesthetics of the helmet body; on the other hand, the valve structure is complex and the cost is high. Summary of the Utility Model

[0005] The first technical problem to be solved by the utility model is to provide a helmet that balances the heat dissipation and heat preservation requirements and improves the aesthetics according to the current situation of the prior art.

[0006] The second technical problem to be solved by the utility model is to provide a helmet with a simple valve structure.

[0007] The technical solution adopted by the utility model to solve the above first technical problem is: a helmet, comprising a helmet body having a first ventilation opening and a valve for opening and closing the first ventilation opening, characterized in that: the helmet body comprises a cap body and a cap shell covering the top of the cap body, a sandwich is formed between the outer wall of the cap body and the inner wall of the cap shell, and the cap body has a communication port for communicating the inner cavity of the cap body and the sandwich, the cap shell has the first ventilation opening for communicating the sandwich and the outside atmosphere, and the valve is arranged in the sandwich.

[0008] To solve the above second technical problem, the valve comprises

[0009] a sliding piece, which can be slidably attached to the inner wall of the cap shell and has a second ventilation opening corresponding to the first ventilation opening on the surface; and

[0010] a driving mechanism for driving the sliding piece to slide relative to the cap shell so that the helmet has at least two states:

[0011] In the first state, the second vent is offset from the first vent so that the first vent is in a closed state;

[0012] In the second state, the second vent faces the first vent so that the first vent is in an open state.

[0013] To ensure the stable sliding of the sliding piece, guide bars and guide grooves for guiding and mating are respectively provided on the opposing surfaces of the cap shell and the sliding piece.

[0014] To facilitate the adjustment of the air volume discharged from the first vent, both the guide bar and the guide groove extend in the front - rear direction, and both the first vent and the second vent are strip - shaped holes extending in the front - rear direction.

[0015] To ensure that the sliding piece always fits against the cap shell, a convex platform is provided protruding from the top surface of the cap body, and this convex platform supports the bottom of the sliding piece so that the sliding piece is pressed against the inner wall of the cap shell.

[0016] To prevent interference between the sliding piece and the cap shell during the sliding process of the sliding piece, the shape of the sliding piece matches the inner wall of the cap shell, and the sliding piece has elasticity.

[0017] To drive the sliding piece, an arc - shaped rack is provided on the sliding piece;

[0018] The drive mechanism includes

[0019] a base;

[0020] a first gear, rotatably connected to the base and meshing with the rack;

[0021] a second gear, rotatably connected to the base and coaxially connected to the first gear;

[0022] a third gear, rotatably connected to the base and meshing with the second gear; and

[0023] a driving member, mounted on the base, and its power output shaft is coaxially connected to the third gear.

[0024] To limit the extreme positions of the sliding of the sliding piece, the two ends of the rack respectively have a first stop portion and a second stop portion extending towards the first gear;

[0025] When the first vent is in a completely closed state, the first gear abuts against the first stop portion;

[0026] When the first vent is in a completely open state, the first gear abuts against the second stop portion.

[0027] To facilitate the control of the opening and closing of the ventilation opening, a main control board is provided in the interlayer, and the driving mechanism is signal-connected to the main control board.

[0028] To automatically control the opening and closing of the ventilation opening according to the internal temperature of the helmet body, a temperature sensor is further provided in the interlayer, and the temperature sensor is signal-connected to the main control board, so that the main control board can receive the signal collected by the temperature sensor and control the driving mechanism to drive the sliding plate to slide.

[0029] Compared with the prior art, the advantages of the present utility model are as follows:

[0030] (1) By arranging the valve for opening and closing the first ventilation opening in the interlayer between the cap body and the cap shell, it can ensure that the helmet takes into account the heat dissipation and heat preservation requirements and improves the aesthetics;

[0031] (2) By forming a valve with a sliding plate that can slidably fit on the inner wall of the cap shell and a driving mechanism for driving the sliding plate to slide relative to the cap shell, the opening and closing of the first ventilation opening are realized, and the structure is simple. Description of the Drawings

[0032] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the helmet of the present utility model in the first state;

[0033] Figure 2 It is Figure 1 a three-dimensional exploded schematic diagram of;

[0034] Figure 3 It is Figure 2 a three-dimensional structural schematic diagram of the valve in;

[0035] Figure 4 It is Figure 1 a longitudinal sectional view of (viewed from right to left);

[0036] Figure 5 It is Figure 1 a longitudinal sectional view of (viewed from front to back);

[0037] Figure 6 It is Figure 1 a longitudinal sectional view after switching to the second state (viewed from right to left);

[0038] Figure 7 It is Figure 1 a longitudinal sectional view after switching to the second state (viewed from front to back). Detailed Embodiment

[0039] The present utility model will be further described in detail below in conjunction with the embodiments of the drawings.

[0040] In the description and claims of the present utility model, terms indicating directions are used, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., to describe various exemplary structural parts and elements of the present utility model. However, the use of these terms herein is only for the purpose of convenient description and is determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed by the present utility model can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to the directions opposite to or consistent with the direction of gravity.

[0041] As Figures 1 to 7 shown, it is a preferred embodiment of the helmet of the present utility model. The helmet includes a helmet body 1, a valve 2, a temperature sensor 3, a main control board 4, and a battery 5.

[0042] Among them, the helmet body 1 includes a cap body 11 and a cap shell 12 covering the top of the cap body 11, and a sandwich layer 10 is formed between the outer wall of the cap body 11 and the inner wall of the cap shell 12.

[0043] Specifically, the cap body 11 is provided with a plurality of communication ports 111 arranged at intervals for communicating the inner cavity of the cap body 11 and the sandwich layer 10; a plurality of convex platforms 112 arranged at intervals protrude from the top surface of the cap body 11;

[0044] The cap shell 12 is provided with a plurality of first ventilation ports 121 arranged at intervals for communicating the sandwich layer 10 and the outside atmosphere; a guiding strip 122 extending in the front-rear direction protrudes from the inner wall of the cap shell 12;

[0045] The valve 2 is arranged in the sandwich layer 10 for opening and closing the above-mentioned first ventilation ports 121. In this embodiment, the valve 2 includes a sliding plate 21 and a driving mechanism 22.

[0046] Specifically, the shape of the sliding plate 21 matches the inner wall of the cap shell 12, and the sliding plate 21 has elasticity and can slide back and forth and fit on the inner wall of the cap shell 12. The above-mentioned convex platforms 112 support the bottom of the sliding plate 21 so that the sliding plate 21 is closely attached to the inner wall of the cap shell 12; a plurality of second ventilation ports 211 corresponding to the above-mentioned first ventilation ports 121 one by one are arranged on the surface of the sliding plate 21, and both the first ventilation ports 121 and the second ventilation ports 211 are strip-shaped holes extending in the front-rear direction; a guiding groove 212 extending in the front-rear direction and guidingly cooperating with the above-mentioned guiding strip 122 is formed on the surface of the sliding plate 21, so as to ensure the stable sliding of the sliding plate 21; a rack 213 in an arc shape is arranged at the rear part of the sliding plate 21, and two ends of the rack 213 are respectively provided with a first stop portion 2131 and a second stop portion 2132 extending downward;

[0047] The driving mechanism 22 is installed on the top wall of the cap body 11 and includes a base 221, a first gear 222, a second gear 223, a third gear 224 and a driving member 225. The first gear 222 is rotatably connected to the base 221 and meshes with the above-mentioned rack 213; the second gear 223 is rotatably connected to the base 221 and is coaxially connected to the first gear 222; the third gear 224 is rotatably connected to the base 221 and meshes with the second gear 223; the driving member 225 is a motor installed on the base 221, and its power output shaft is coaxially connected to the third gear 224.

[0048] Start the driving member 225 to drive the third gear 224 to rotate. Since the second gear 223 meshes with the third gear 224, the second gear 223 rotates accordingly, and the first gear 222 rotates synchronously. Since the rack 213 meshes with the first gear 222, the entire slide plate 21 slides relative to the cap shell 12 along the front-rear direction with the rack 213, so that the helmet has at least two states:

[0049] In the first state, as Figure 4 and Figure 5 shown, the second vent 211 and the first vent 121 are staggered from each other, so that the first vent 121 is in a completely closed state. At this time, the first gear 222 abuts against the first stop portion 2131;

[0050] In the second state, as Figure 6 and Figure 7 shown, the second vent 211 is directly opposite the first vent 121, so that the first vent 121 is in a completely open state. At this time, the first gear 222 abuts against the second stop portion 2132;

[0051] During the process of switching between the first state and the second state, the first vent 121 is partially opened, and the user can adjust the moving position of the slide plate 21 according to the demand to further adjust the ventilation volume of the first vent 121.

[0052] The temperature sensor 3 is arranged in the interlayer 10, installed on the top wall of the cap body 11, and is arranged close to one of the first vents 121 for monitoring the temperature inside the helmet body 1.

[0053] The main control board 4 is arranged in the interlayer 10, installed on the top wall of the cap body 11. The above-mentioned driving member 225, temperature sensor 3 are signal-connected to the main control board 4, so that the main control board 4 can receive the signals collected by the temperature sensor 3 and control the driving member 225 to drive the slide plate 21 to slide.

[0054] The power supply 5 is arranged in the interlayer 10, installed on the top wall of the cap body 11, and is used to supply electric energy to the above-mentioned driving member 225, temperature sensor 3 and main control board 4.

[0055] In addition, the main control board 4 can have various forms, and different control methods can be achieved by adding different types of components and programs to the main control board 4. It can cooperate with the temperature sensor 3 for temperature control, or a remote control receiving module can be added to cooperate with the remote control to achieve the switch function (for example, a small remote control switch can be installed on the ski pole to conveniently control the opening and closing of the first ventilation opening 121 during skiing). Other methods such as voice control, wave sensing, and mobile APP connection control can be customized and used according to the needs of different users, and can also be integrated with other intelligent helmet functions.

[0056] The working principle of this embodiment is as follows: During operation, when the temperature sensor 3 detects that the temperature inside the helmet body 1 is lower than the set value required by the user, the main control board 4 automatically controls the driving member 225 to drive the sliding piece to slide to the first state as shown in Figure 4 and Figure 5 so that the first ventilation opening 121 is completely closed for heat preservation; when the temperature sensor 3 detects that the temperature inside the helmet body 1 reaches the set value required by the user, the main control board 4 automatically controls the driving member 225 to drive the sliding piece to slide to the second state as shown in Figure 6 and Figure 7 so that the first ventilation opening 121 is completely opened for heat dissipation.

Claims

1. A helmet, comprising a helmet body (1) having a first vent (121) and a valve (2) for opening and closing the first vent (121), characterized in that: The described helmet body (1) includes a cap body (11) and a cap shell (12) covering the top of the cap body (11). A sandwich layer (10) is formed between the outer wall of the cap body (11) and the inner wall of the cap shell (12). The cap body (11) has a communication port (111) for communicating the inner cavity of the cap body (11) and the sandwich layer (10). The cap shell (12) has a first ventilation port (121) for communicating the sandwich layer (10) and the outside atmosphere. The valve (2) is arranged in the sandwich layer (10).

2. The helmet according to claim 1, characterized in that: The described valve (2) includes a sliding plate (21) that can slide and fit on the inner wall of the cap shell (12), and a second ventilation port (211) corresponding to the first ventilation port (121) is provided on the surface; and a driving mechanism (22) for driving the sliding plate (21) to slide relative to the cap shell (12) so that the helmet has at least two states: In the first state, the second ventilation port (211) and the first ventilation port (121) are staggered from each other so that the first ventilation port (121) is in a closed state; In the second state, the second ventilation port (211) is directly opposite the first ventilation port (121) so that the first ventilation port (121) is in an open state.

3. The helmet according to claim 2, characterized in that: Guiding strips (122) and guiding grooves (212) for guiding and fitting are respectively provided on the opposite surfaces of the cap shell (12) and the sliding plate (21).

4. The helmet according to claim 3, characterized in that: Both the guiding strip (122) and the guiding groove (212) extend in the front-rear direction. Both the first ventilation port (121) and the second ventilation port (211) are strip-shaped holes extending in the front-rear direction.

5. The helmet according to claim 2, characterized in that: A convex platform (112) protrudes from the top surface of the cap body (11), and this convex platform (112) supports the bottom of the sliding plate (21) so that the sliding plate (21) is closely attached to the inner wall of the cap shell (12).

6. The helmet according to claim 2, characterized in that: The shape of the sliding plate (21) matches the inner wall of the cap shell (12), and the sliding plate (21) has elasticity.

7. The helmet according to claim 6, characterized in that: An arc-shaped rack (213) is provided on the sliding plate (21); The described driving mechanism (22) includes a base (221); a first gear (222) rotatably connected to the base (221) and meshing with the rack (213); a second gear (223) rotatably connected to the base (221) and coaxially connected to the first gear (222); a third gear (224) rotatably connected to the base (221) and meshing with the second gear (223); and a driving member (225) installed on the base (221), and its power output shaft is coaxially connected to the third gear (224).

8. The helmet according to claim 7, characterized in that: Both ends of the rack (213) respectively have a first stop portion (2131) and a second stop portion (2132) extending towards the first gear (222); In the state where the first ventilation port (121) is completely closed, the first gear (222) abuts against the first stop portion (2131); With the first vent (121) in a fully open state, the first gear (222) abuts against the second stop portion (2132).

9. The helmet according to any one of claims 2 to 8, characterized in that: A main control board (4) is provided in the interlayer (10), and the drive mechanism (22) is in signal connection with the main control board (4).

10. The helmet according to claim 9, characterized in that: A temperature sensor (3) is further provided in the interlayer (10), and the temperature sensor (3) is in signal connection with the main control board (4), so that the main control board (4) can receive the signals collected by the temperature sensor (3) and control the drive mechanism (22) to drive the slide plate (21) to slide.

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