Helmet with double breathable air windows
By designing a sliding cover and helmet frame that connect to the helmet, the ventilation volume of the helmet can be adjusted, solving the problem that the ventilation design of existing helmets cannot be adjusted, and improving riding comfort and ventilation effect.
Patent Information
- Application Number
- CN202520182223.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-05
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-05
AI Technical Summary
The ventilation design of existing helmets is not adjustable, which cannot meet the ventilation needs of users in different environments, resulting in a poor riding experience.
Design a helmet with dual ventilation windows, including a sliding cover and a helmet frame. The sliding cover is slidably connected to the helmet frame. By sliding the sliding cover, the opening and closing of the first and second ventilation windows can be adjusted to regulate the ventilation volume inside the helmet.
It offers adjustable ventilation inside the helmet, improving comfort and ventilation during riding. It also features high structural strength and stability, and a long service life.
Smart Images
Figure CN223627018U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a helmet, more specifically, it relates to a double ventilation window helmet. BACKGROUND
[0002] As an important protective gear for users during cycling, the helmet can provide important protection for the safety of cycling. In addition, the helmet also needs to provide a certain comfort for the cyclist, especially the fact that most helmets are not breathable, which can easily lead to heat accumulation inside the helmet, causing users to have a bad user experience. Therefore, some helmets have gradually designed air windows to achieve the effect of ventilation inside the helmet. However, the ventilation design of the helmet generally does not have an adjusting function, and cannot meet the required ventilation effect in different environments.
[0003] For example: Chinese patent publication No. CN221489173U, published on August 9, 2024, the utility model name is a helmet air window, including base, the top of the base is clamped with positioning piece, the top of the positioning piece is connected with cover plate, the upper end surface of the base is provided with clamping groove, the positioning piece is clamped into the clamping groove, the bottom of the clamping groove is provided with through groove, the top of one end of the positioning piece is provided with air inlet window, the bottom of one end of the cover plate is fixedly connected with window plate. By manually operating the cover plate, the ventilation conditions of the helmet can be easily adjusted to meet different cycling conditions and user needs, so that the cyclist can enjoy a more comfortable experience during cycling. Unlike the design in the prior art, which usually needs to stop cycling to adjust the ventilation setting, the helmet air window of this scheme allows users to operate simply and quickly during cycling, improving the convenience and safety of cycling. However, this scheme only has two states of opening and closing to adjust the air intake of the helmet, which cannot meet the higher cycling experience of users. UTILITY MODEL CONTENTS
[0004] The utility model overcomes the problem that the existing helmet cannot adjust the air intake effect, and provides a double ventilation window helmet. This scheme can adjust the ventilation effect inside the helmet while ensuring the basic ventilation effect of the helmet, providing users with a better ventilation effect experience.
[0005] In order to solve the above technical problems, the utility model discloses the following technical scheme: a double ventilation air window helmet, including helmet main part, the top of helmet main part is equipped with air window subassembly, the air window subassembly includes slide cover and helmet stand, the slide cover is located the helmet stand top and with the helmet stand sliding connection, the middle part position of slide cover is equipped with first air window, the helmet stand is equipped with second air window near the front side of slide cover, be equipped with a plurality of first through -hole on the helmet stand. The air window subassembly can provide the effect of ventilation for the inner chamber of the helmet main part, specifically, the first air window on the air window subassembly is the main ventilation hole, the second ventilation hole on the air window subassembly is the adjusting type ventilation hole, the slide cover is the uppermost structure of the helmet main part, the slide cover and the helmet stand adopt the sliding design, so that the second air window can be opened by sliding the slide cover, to adjust the overall ventilation of the helmet main part, the user can adjust the ventilation to meet the most suitable ventilation effect, thereby adjusting the comfort of the helmet use, providing better experience effect for the user.
[0006] As preferred, the slide cover is provided with a transversely arranged ventilation opening at the position of the first air window, and a ventilation plate is detachably connected to the ventilation opening, and the ventilation plate is provided with a plurality of ventilation grid holes and forms the first air window. The first air window on the slide cover is composed of a ventilation plate with grid holes, which can make the ventilation effect more stable and has the effect of rectification, and can also improve the appearance of the helmet main part to some extent.
[0007] As preferred, the helmet stand includes an inner lining layer fixedly connected to the inner chamber of the helmet main part, and the inner lining layer is provided with at least two groups of slide grooves arranged front and back, and the slide cover is slidingly connected in the slide grooves. The inner lining layer can improve the overall structural strength of the helmet main part, and can better arrange the slide cover structure, and the slide grooves are arranged in the front and back directions on the inner lining layer, so that the slide cover can be slid in the front and back directions to open or close the second air window.
[0008] As preferred, the inner lining layer is further provided with a plurality of second through holes, the arrangement direction of the second through holes is parallel to the arrangement direction of the slide grooves, and the second through holes are located at positions away from the middle part of the helmet main part. The second through holes are arranged at both sides of the helmet main part, which can supply air to both sides of the helmet, improve the airflow circulation effect of both sides of the helmet main part, and improve the comfort of both sides of the user's head.
[0009] As preferred, the slide groove is provided with a first step surface, a second step surface and a guide surface, the height position of the second step surface is higher than that of the first step surface, and the guide surface connects the first step surface and the second step surface. The first step surface and the second step surface on the slide groove are respectively in the closed and open positions of the slide cover, and the guide surface allows the slide cover to easily switch between the first step surface and the second step surface, improving the motion stability of the slide cover.
[0010] As preferred, the sliding slot further comprises a limiting part, which is arranged on one side of the sliding slot perpendicular to the front-back direction of the helmet body, and the limiting part is spaced apart from the bottom of the sliding slot. The limiting part can keep the sliding cover in position when it is in the closed and open state, avoiding the sliding cover from being opened or closed randomly due to shaking during riding.
[0011] As preferred, the sliding slot comprises a first sliding slot and a second sliding slot, the limiting part on the first sliding slot is arranged opposite to the limiting part on the second sliding slot, and a limiting area is formed between the first sliding slot and the second sliding slot and in the front-back direction of the helmet body. The first sliding slot and the second sliding slot are located on the same line, but the limiting parts on the first sliding slot and the second sliding slot are located on two parallel lines, so that a limiting area can be formed between the limiting parts on the first sliding slot and the second sliding slot, to ensure that the sliding cover can slide along the area where the limiting area is located, without transverse movement.
[0012] As preferred, the sliding cover is provided with a sliding block, which is adapted to the sliding slot, and the sliding block is provided with a guide block, which protrudes transversely from the limiting part. The guide block on the sliding cover can provide a guiding effect for the sliding block in the sliding slot, reducing sliding friction, and the guide block protrudes transversely from the limiting part, so that the sliding cover and the inner lining layer can be stably matched, preventing the sliding cover from separating from the inner lining layer.
[0013] As preferred, the sliding cover is further provided with a recess, and the first air window is arranged at the position of the recess. The recess can provide a better position for the user to push the sliding cover to slide, and also provides installation space for the first air window.
[0014] As preferred, a guide part is further arranged between the helmet rack and the sliding cover, and the guide part is arranged on the symmetry axis of the left-right direction of the helmet body. The guide part can make the sliding effect of the sliding cover more stable, ensuring the use effect of the helmet.
[0015] Compared with the prior art, the utility model has the advantages that: (1) the ventilation effect in the helmet can be adjusted, providing better ventilation effect experience for the user; (2) the ventilation of the helmet is convenient to adjust, only needing to push the sliding cover to slide to realize adjustment; (3) the structural strength and structural stability of the air window assembly are higher, and the service life is long. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is an isometric view of the utility model.
[0017] Figure 2 It is a top view of the utility model.
[0018] Figure 3 It is Figure 2A cross-sectional view along the AA direction.
[0019] Figure 4 This is an isometric view of the windshield assembly of this utility model.
[0020] Figure 5 This is a top view of the windshield assembly of this utility model.
[0021] Figure 6 for Figure 5 Cross-sectional view along the BB direction.
[0022] Figure 7 This is a schematic diagram of the internal structure of the windshield assembly of this utility model.
[0023] In the diagram: 1. Helmet body, 2. Vent assembly, 2.1. Sliding cover, 2.2. Helmet frame, 2.3. Inner liner, 3. First vent, 4. Second vent, 5. First through hole, 6. Ventilation plate, 6.1. Ventilation grille hole, 6.2. Buckle, 7. Slide groove, 7.1. First step surface, 7.2. Second step surface, 7.3. Guide surface, 7.4. Limiting part, 7a. First slide groove, 7b. Second slide groove, 8. Second through hole, 9. Slider, 9.1. Guide part, 10. Recess, 11. Guide part, 12. Fixing post, 13. Fixing hole. Detailed Implementation
[0024] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0025] Example 1: As Figures 1 to 7 The helmet shown includes a helmet body 1 and a vent assembly 2 on the top of the helmet body 1. The vent assembly 2 and the helmet body 1 are detachably connected. The vent assembly 2 includes a helmet frame 2.2, an inner liner 2.3, and a sliding cover 2.1. The inner liner 2.3 is fixed to the helmet frame 2.2, while the sliding cover 2.1 is slidably connected above the inner liner 2.3. A first vent 3 is provided on the sliding cover 2.1, and a second vent 4 is provided on the inner liner 2.3, or the helmet frame 2.2. The first vent 3 is located near the middle of the sliding cover 2.1, and the second vent 4 is located on the front side where the vent assembly 2 and the helmet body 1 are connected, that is, near the front side of the helmet body 1. The first air window 3 can be set as a normally open air window, while the second air window 4 can be opened or closed by sliding the cover 2.1. By adjusting the position of the cover 2.1, the air intake of the second air window 4 can be adjusted, thus achieving different air intake effects and providing the best ventilation and heat dissipation for the user during riding.
[0026] Specifically, the whole wind window assembly 2 is an arc-shaped structure adapted to the top of the helmet, the surface of the sliding cover 2.1 is slightly larger than the surface of the inner lining layer 2.3, so that the sliding cover 2.1 can cover the inner lining layer 2.3 to improve the overall aesthetic effect of the helmet. A recess 10 is arranged on the front side of the sliding cover 2.1, the recess 10 is recessed on the upper surface of the sliding cover 2.1, so that when the user needs to push the sliding cover 2.1, the recess 10 can be forced to push the sliding cover 2.1, improving the driving effect of the sliding cover 2.1 and making it more convenient to push. In addition, the first wind window 3 is arranged on the recess 10, specifically, the recess 10 and the surface of the sliding cover 2.1 are connected by a bevel, which can increase the guiding effect of the recess 10 on the airflow and increase the air intake of the first wind window 3; the first wind window 3 is arranged on the surface of the sliding cover 2.1 at the rear side of the recess 10. Since the rear side of the recess 10 is towards the front side of the helmet body 1, the first wind window 3 forms a windward surface after being arranged, which can better guide the airflow into the first wind window 3.
[0027] It should be noted that in the present embodiment, the front side and the rear side refer to the positions along the front-rear direction of the helmet body 1 during actual use, and the left side and the right side refer to the positions along the left-right direction of the helmet body 1 during actual use.
[0028] The first wind window 3 can be directly designed as a hole on the rear side of the recess 10 of the sliding cover 2.1 to form a wind hole integrated with the sliding cover 2.1; or a ventilation plate 6 can be used to form the first wind window 3, which is detachably connected with the sliding cover 2.1. In the present embodiment, the ventilation plate 6 is taken as an example for illustration. A ventilation opening is arranged on the sliding cover 2.1 at the rear side of the recess 10, the ventilation opening is arranged horizontally on the sliding cover 2.1, that is, the length direction of the ventilation opening is along the left-right direction, and the ventilation plate 6 is arranged on the ventilation opening. The middle position of the ventilation plate 6 is provided with a buckle 6.2 for clamping and fixing the ventilation plate 6 on the sliding cover 2.1, and a plurality of ventilation grating holes 6.1 are uniformly distributed on both sides of the ventilation plate 6. The airflow entering the first wind window 3 through the ventilation grating holes 6.1 is more uniform, the ventilation grating holes 6.1 can have a certain rectification effect on the airflow, ensuring that the airflow in the inner cavity of the helmet is more widely distributed, and better heat dissipation and ventilation effects can be achieved.
[0029] The helmet stand 2.2 and the inner lining 2.3 are arranged together, the inner lining 2.3 is a support, on the one hand, fixed to the helmet body 1 to form the helmet stand 2.2, on the other hand, also slidingly connected to the sliding cover 2.1 to provide sliding support for the sliding cover 2.1. The inner lining 2.3 is used to connect the helmet body 1 and the sliding cover 2.1, which not only can enhance the structural strength of the helmet body 1 and the whole wind window assembly 2, but also can simplify the structure of the helmet body 1, avoid the helmet body 1 being directly manufactured into a complex structure, and increase the process difficulty. The inner lining 2.3 is provided with a fixing column 12 on the side close to the helmet cavity, and the helmet stand 2.2 or the helmet body 1 is provided with a fixing hole 13, and the inner lining 2.3 and the helmet stand 2.2 are fixedly connected through the fixing column 12 and the fixing hole 13.
[0030] The upper surface of the inner lining 2.3 is also provided with a sliding groove 7 structure, specifically, the left and right sides of the inner lining 2.3 are arranged with the sliding groove 7, and at least two groups of sliding grooves 7 are arranged on each side (left side or right side), in this embodiment, two groups of sliding grooves 7 are arranged on each side, and the two groups of sliding grooves 7 are arranged along the front-rear direction of the helmet body 1, and the length direction of the sliding groove 7 is also along the front-rear direction of the helmet body 1, so that the sliding cover 2.1 can slide along the front-rear direction of the helmet body 1.
[0031] The second wind window 4 is arranged on the front side of the helmet stand 2.2 or the inner lining 2.3, specifically, as shown in Figure 7 The front side of the wind window assembly 2 is provided with a plurality of transversely arranged ventilation holes, and the ventilation holes are uniformly distributed to form a grid hole structure, that is, the second wind window 4, when the sliding cover 2.1 slides upward, the lower layer of the second wind window 4 is exposed, and when the sliding cover 2.1 slides downward, the second wind window 4 is shielded again, so as to change the ventilation amount of the wind window assembly 2. In addition, the inner lining 2.3 or the helmet stand 2.2 is also provided with a first through hole 5 at the middle position, the first through hole 5 is in a rectangular shape, and six first through holes 5 are arranged, which are symmetrically distributed on the left and right sides of the wind window assembly 2. The size of the first through hole 5 is large, which can play a good ventilation effect, and when the air flow enters the first wind window 3 and the second wind window 4, it can contact the user's head through the first through hole 5. At the same time, the inner lining 2.3 or the helmet stand 2.2 is also provided with a second through hole 8 on the left and right sides, the second through hole 8 is arranged at the position where the left and right sides of the wind window assembly 2 are located, that is, the second through hole 8 is away from the left and right symmetry axes of the wind window assembly 2, and the second through hole 8 can guide the air flow entering the left and right sides of the wind window assembly 2 into the helmet cavity to realize the effect of air supplement. In addition, since the left and right second through holes 8 are arranged along the front-rear direction of the helmet body 1, the position close to the rear side of the wind window assembly 2 can also enter a certain air flow, which improves the flowability of the air flow at the rear side of the helmet cavity.
[0032] It should be noted that a guide part 11 is also provided in the middle of the windshield assembly 2. Specifically, a recessed guide groove is provided on the inner liner 2.3, and a protruding column is provided below the sliding cover 2.1, so that the inner liner 2.3 and the sliding cover 2.1 also have a certain sliding limit effect in the middle position, ensuring the stability of the sliding cover 2.1.
[0033] Example 2: Figures 1 to 7 The helmet shown includes a helmet body 1 and a vent assembly 2 on the top of the helmet body 1. The vent assembly 2 and the helmet body 1 are detachably connected. The vent assembly 2 includes a helmet frame 2.2, an inner liner 2.3, and a sliding cover 2.1. The inner liner 2.3 is fixed to the helmet frame 2.2, while the sliding cover 2.1 is slidably connected above the inner liner 2.3. A first vent 3 is provided on the sliding cover 2.1, and a second vent 4 is provided on the inner liner 2.3, or the helmet frame 2.2. The first vent 3 is located near the middle of the sliding cover 2.1, and the second vent 4 is located on the front side where the vent assembly 2 and the helmet body 1 are connected, that is, near the front side of the helmet body 1. The first air window 3 can be set as a normally open air window, while the second air window 4 can be opened or closed by sliding the cover 2.1. By adjusting the position of the cover 2.1, the air intake of the second air window 4 can be adjusted, thus achieving different air intake effects and providing the best ventilation and heat dissipation for the user during riding.
[0034] Specifically, the windshield assembly 2 has an overall arc-shaped structure that fits the top of the helmet. The surface of the sliding cover 2.1 is slightly larger than the surface of the inner lining layer 2.3, allowing the sliding cover 2.1 to cover the inner lining layer 2.3 and improve the overall aesthetics of the helmet. A recess 10 is provided on the front side of the sliding cover 2.1, which is recessed into the upper surface of the sliding cover 2.1. When the user needs to push the sliding cover 2.1, force can be applied to the recess 10 to push the sliding cover 2.1, improving the driving effect of the sliding cover 2.1 and making it easier to push. In addition, a first air window 3 is provided on the recess 10. Specifically, the recess 10 and the surface of the sliding cover 2.1 are connected by a bevel transition, which can increase the guiding effect of the recess 10 on the airflow and increase the air intake of the first air window 3. The first air window 3 is located on the rear side of the recess 10 and the surface of the sliding cover 2.1. Since the rear side of the recess 10 faces the front side of the helmet body 1, the arrangement of the first air window 3 in this way can make the first air window 3 form a windward surface, which can better guide the airflow into the first air window 3.
[0035] It should be noted that, in this embodiment, unless otherwise specified, the front and rear sides refer to the positions along the front-rear direction when the helmet body 1 is actually in use, while the left and right sides refer to the positions along the left-right direction when the helmet body 1 is actually in use.
[0036] The first air window 3 can be designed as a hole directly behind the recess 10 of the sliding cover 2.1, forming an air hole integrated with the sliding cover 2.1; or a ventilation plate 6 detachably connected with the sliding cover 2.1 can be used to form the first air window 3. In this embodiment, the ventilation plate 6 is taken as an example for illustration. The ventilation plate 6 is arranged on the sliding cover 2.1 at the rear side of the recess 10, and the ventilation plate 6 is arranged horizontally on the sliding cover 2.1, that is, the length direction of the ventilation plate 6 is along the left-right direction. The ventilation plate 6 is provided with a buckle 6.2 at the middle position, which is used to buckle and fix the ventilation plate 6 on the sliding cover 2.1. A plurality of ventilation grating holes 6.1 are uniformly distributed on both sides of the ventilation plate 6. The airflow entering the first air window 3 through the ventilation grating holes 6.1 is more uniform. The ventilation grating holes 6.1 can have a certain rectification effect on the airflow, so as to ensure that the airflow in the helmet cavity is more widely distributed, and the heat dissipation and ventilation effect is better.
[0037] The helmet stand 2.2 and the inner lining layer 2.3 are arranged together. The inner lining layer 2.3 is a bracket, which is fixed on the helmet main body 1 to form the helmet stand 2.2, and is also slidably connected with the sliding cover 2.1 to provide sliding support for the sliding cover 2.1. The inner lining layer 2.3 is used to connect the helmet main body 1 and the sliding cover 2.1, which can not only enhance the structural strength of the helmet main body 1 and the whole air window assembly 2, but also simplify the structure of the helmet main body 1, avoid the helmet main body 1 being directly manufactured into a complex structure, and increase the process difficulty. The inner lining layer 2.3 is provided with a fixing column 12 on the side close to the helmet cavity. The helmet stand 2.2 or the helmet main body 1 is provided with a fixing hole 13. The inner lining layer 2.3 and the helmet stand 2.2 are fixedly connected through the fixing column 12 and the fixing hole 13.
[0038] The inner lining layer 2.3 is further provided with a sliding groove 7 structure on the upper surface. Specifically, the inner lining layer 2.3 is provided with the sliding groove 7 on both left and right sides, and each side (left or right) is provided with at least two groups of sliding grooves 7. In this embodiment, each side is provided with two groups of sliding grooves 7. The two groups of sliding grooves 7 are arranged along the front-rear direction of the helmet main body 1, and the length direction of the sliding groove 7 is also along the front-rear direction of the helmet main body 1. In this way, the sliding cover 2.1 can slide along the front-rear direction of the helmet main body 1.
[0039] The second air window 4 is arranged on the front side of the helmet stand 2.2 or the inner lining layer 2.3. Specifically, Figure 7As shown, a plurality of transversely arranged air vents are arranged at the front side position of the air window assembly 2 and below the sliding cover 2.1, which are uniformly distributed to form a grid hole structure, that is, the second air window 4, which can be exposed after the sliding cover 2.1 is slid upward, and which can be shielded again after the sliding cover 2.1 is slid downward, so as to change the ventilation amount of the air window assembly 2. In addition, a first through hole 5 is arranged at the middle position of the inner lining 2.3 or the helmet rack 2.2, which is in a rectangular shape, and there are six first through holes 5, which are symmetrically distributed on both sides of the air window assembly 2. The first through hole 5 has a large size and can play a good ventilation effect. When the airflow enters the first air window 3 and the second air window 4, it can contact the user's head through the first through hole 5. At the same time, a second through hole 8 is arranged on the left and right sides of the inner lining 2.3 or the helmet rack 2.2, which is arranged at the position where the left and right edges of the air window assembly 2 are located, that is, the second through hole 8 is away from the left and right symmetry axes of the air window assembly 2. The second through hole 8 can guide the airflow entering the left and right sides of the air window assembly 2 into the helmet inner cavity to achieve the effect of air supplement. In addition, since the left and right second through holes 8 are arranged along the front and rear directions of the helmet main body 1, the position close to the rear side of the air window assembly 2 can also enter a certain airflow, thereby improving the flowability of the airflow at the rear side of the helmet inner cavity.
[0040] It should be noted that a guide portion 11 is also arranged at the middle position of the air window assembly 2. Specifically, a concave guide groove is arranged on the inner lining 2.3, and a convex column is arranged below the sliding cover 2.1, so that the inner lining 2.3 and the sliding cover 2.1 have a certain sliding limiting effect at the middle position, thereby ensuring the stability of the sliding of the sliding cover 2.1.
[0041] A first step surface 7.1, a second step surface 7.2 and a guide surface 7.3 are arranged at the bottom of the sliding groove 7. The height position of the first step surface 7.1 is lower than that of the second step surface 7.2, and the guide surface 7.3 connects the first step surface 7.1 and the second step surface 7.2 to form a transition effect. A sliding block 9 matched with the sliding groove 7 is arranged below the sliding cover 2.1. When the sliding cover 2.1 is in a closed state, that is, the second air window 4 is shielded by the sliding cover 2.1, at this time, the sliding block 9 is located at the position of the first step surface 7.1. When the sliding cover 2.1 is in an open state, that is, the second air window 4 is exposed, at this time, the sliding block 9 is located on the second step surface 7.2. The guide surface 7.3 can guide the sliding block 9 of the sliding cover 2.1, so that the sliding block 9 can slide stably in the sliding groove 7, thereby ensuring the opening and closing effect of the sliding block 9.
[0042] Furthermore, a limiting part 7.4 is also provided inside the slide groove 7. The limiting part 7.4 extends downward from the opening of the slide groove 7, but does not connect with the bottom of the slide groove 7. That is, the limiting part 7.4 maintains a certain distance from the bottom of the slide groove 7. The limiting part 7.4 is located on one side of the slide groove 7 in the left-right direction, that is, on the side perpendicular to the sliding direction of the slider 9. Similarly, an inclined surface is also provided on the limiting part 7.4, which is approximately parallel to the guide surface 7.3. A guide block 9.1 is provided on the slider 9. The guide block 9.1 protrudes laterally from the outer edge of the limiting part 9. That is, the guide block 9.1 abuts against the bottom of the slide groove 7 and the lower end of the limiting part 7.4. This ensures that the slider 9 is within the slide groove 7 and prevents the slider 9 from detaching from the slide groove 7. Figure 6 As shown, the guide block 9.1 has a cylindrical structure, and there are two sets of guide blocks 9.1.
[0043] Among them, the two slide grooves 7 are located on the same straight line in the front-rear direction of the helmet body 1, but the limiting parts 7.4 on the two slide grooves 7 are not coplanar. Specifically, as shown in the figure... Figure 6 As shown, the slide on the left side of the figure is the first slide 7a, and the slide on the right side of the figure is the second slide 7b. The limiting part on the first slide 7a is arranged outside the plane of the figure (that is, the reader can see the limiting part 7.4), and the limiting part on the second slide 7b is arranged inside the plane of the figure (the reader cannot see the limiting part). Thus, a limiting area is formed between the limiting part of the first slide 7a and the limiting part of the second slide 7b. The sliding direction of the slider 9 is restricted by the limiting area, and the slider 9 can also be effectively prevented from leaving the slide 7.
[0044] In this solution, users can adjust the ventilation volume to achieve the most suitable ventilation effect, thereby adjusting the comfort of helmet use and providing a better user experience. At the same time, it also ensures the smooth sliding of the cover and guarantees the effectiveness of use.
Claims
1. A double vented visor helmet characterized in that, The helmet body is provided with a wind window assembly on the top, the wind window assembly comprises a sliding cover and a helmet rack, the sliding cover is arranged above the helmet rack and is in sliding connection with the helmet rack, a first wind window is arranged at the middle part of the sliding cover, a second wind window is arranged on the helmet rack close to the front side of the sliding cover, and a plurality of first through holes are arranged on the helmet rack.
2. A double vented visor helmet according to claim 1, characterised in that, The sliding cover is provided with a transversely arranged air vent at the position of the first wind window, a ventilation plate is detachably connected to the air vent, a plurality of ventilation grid holes are arranged on the ventilation plate, and the ventilation plate forms the first wind window.
3. A double vented visor helmet according to claim 1, characterised in that, The helmet rack comprises an inner lining layer, the inner lining layer is fixedly connected to the inner cavity of the helmet body, at least two groups of sliding grooves are arranged on the inner lining layer in front and back directions, and the sliding cover is in sliding connection with the sliding grooves.
4. A double vented visor helmet according to claim 3, characterised in that, A plurality of second through holes are further arranged on the inner lining layer, the arrangement direction of the second through holes is parallel to the arrangement direction of the sliding grooves, and the second through holes are located at positions away from the middle part of the helmet body.
5. A double vented visor helmet according to claim 3 or 4, characterised in that, The sliding groove is further provided with a first step surface; a second step surface, the height position of the second step surface is higher than that of the first step surface; a guide surface, the guide surface is connected to the first step surface and the second step surface.
6. A double vented visor helmet according to claim 5, characterised in that, The sliding groove further comprises a limiting portion, the limiting portion is arranged on one side of the sliding groove perpendicular to the front and back directions of the helmet body, and the limiting portion is spaced apart from the bottom of the sliding groove.
7. A double vented visor helmet according to claim 6, characterised in that, The sliding groove comprises a first sliding groove and a second sliding groove, the limiting portion on the first sliding groove is arranged opposite to the limiting portion on the second sliding groove, and a limiting area is formed between the first sliding groove and the second sliding groove in the front and back directions of the helmet body.
8. A double vented visor helmet according to claim 6, characterised in that A sliding block is arranged on the sliding cover, the sliding block is matched with the sliding groove, a guide block is arranged on the sliding block, and the guide block is transversely protruded from the limiting portion.
9. A double vented visor helmet according to any one of claims 1 to 3, characterised in that, A recess is further arranged on the outside of the sliding cover, and the first wind window is arranged at the position of the recess.
10. A double vented visor helmet according to any one of claims 1 to 3, characterised in that, A guide portion is further arranged between the helmet rack and the sliding cover, and the guide portion is arranged on the symmetry axis of the left and right directions of the helmet body.