Adjustable helmet structure

Abstract

An adjustable helmet structure comprises an outer shell and a buffer structure layer, wherein a head cover shell is provided at the top of the head cavity of the buffer structure layer, the head cover shell is provided with an adjustment screw hole, a first through hole is provided at the top of the outer shell, and a second through hole is provided on the buffer structure layer, which is connected with the first through hole and forms a mounting channel; an adjustment assembly is provided at the top of the outer shell, and the adjustment assembly comprises a fixed seat installed on the top of the outer shell and an adjustment block rotatably mounted on the fixed seat, and a first waterproof structure is provided between the fixed seat and the outer shell; a rotating circular groove is provided at the bottom of the adjustment block, a water retaining ring is provided at the upper part of the fixed seat, and a second waterproof structure for contacting with the wall of the rotating circular groove to achieve waterproofing is provided on the water retaining ring; an adjustment screw is provided on the adjustment block, which is threadedly connected with the adjustment screw hole. The utility model can effectively reduce the probability of water penetrating into the interior of the helmet from the position above the head cover shell, ensure the user's comfort in rainy days, and enhance the user's experience.

Description

Technical Field

[0001] The utility model relates to the technical field of helmets, in particular to an adjustable helmet structure. Background Art

[0002] The helmet is an indispensable safety protection device during riding, which mainly protects the rider's head by buffering the impact force. In the prior art, in order to improve the fit between the helmet and the rider's head, an adjustment structure is usually set on the helmet. For example, in Chinese patent CN202322300888.8, a double-layer helmet is disclosed, including an outer shell and an inner shell of a helmet, the two sides of the outer shell are provided with a surrounding edge, the top of the inner shell of the helmet is fixed with a screw sleeve, the top of the outer shell is rotatably connected with a rotating rod, the rotating rod is threadedly connected in the screw sleeve, the outer shell is provided with a guide structure for adjusting the height of the inner shell of the helmet, a protective structure for head protection is provided between the outer shell and the inner shell of the helmet, and the inner shell of the helmet is provided with a reinforcement structure to prevent the screw sleeve from penetrating the inner shell of the helmet. By setting the inner shell of the helmet to be able to be fine-tuned up and down in the outer shell, the bottom of the inner shell of the helmet is in contact with the top of the wearer's head, which is convenient for limiting and improving the adaptability of the helmet to wearers with different head circumferences. The helmet can improve the stability when worn, which is beneficial to the head protection of the rider.

[0003] However, in this patent, no waterproof structure is provided between the rotating rod and the outer shell. When the user rides on a rainy day, rainwater can easily penetrate into the interior of the helmet from between the rotating rod and the outer shell, causing the interior of the helmet to be wet, thereby easily causing the interior of the helmet to become moldy and smelly. In addition, when rainwater penetrates into the helmet from the rotating rod and the outer shell too quickly, it is also easy for the user's head to get wet while using the helmet, thereby affecting the user's experience of use. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an adjustable helmet structure.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] An adjustable helmet structure, comprising an outer shell, a buffer structure layer arranged in the outer shell, the interior of the buffer structure layer is a head cavity, the top of the head cavity is provided with a head cover shell, the top of the head cover shell is provided with an adjustment screw hole, the top of the outer shell is provided with a first through hole, and the buffer structure layer is provided with a second through hole corresponding to the first through hole and forming a mounting channel; the characteristic is that: the top of the outer shell is provided with an adjustment component, the adjustment component includes a fixing seat installed on the top of the outer shell and an adjustment block rotatably mounted on the fixing seat, and a first waterproof structure is provided between the fixing seat and the outer shell;

[0007] A rotating circular groove is provided at the bottom of the adjusting block, a water retaining ring is provided at the upper part of the fixing seat, the upper end of the water retaining ring extends into the rotating circular groove, and the water retaining ring is provided with a second waterproof structure for contacting with the groove wall of the rotating circular groove to achieve waterproofing; the water retaining ring is provided with a through channel corresponding to the installation channel, and the adjusting block is provided with an adjusting screw threadedly connected to the adjusting screw hole in the through channel.

[0008] In the utility model, a first installation groove is provided at the bottom of the fixing seat, and the first waterproof structure includes a first sealing rubber ring, which is fitted in the first installation groove and has one end pressed against the outer surface of the housing.

[0009] In the utility model, a second installation groove is provided on the top of the water retaining ring, and the second waterproof structure includes a second sealing rubber ring, which is installed in the second installation groove and one end of which is pressed against the top wall of the rotating circular groove.

[0010] In the utility model, the bottom of the fixing seat is provided with an extended protrusion matched and installed in the first through hole and the second through hole, and the top view cross-sections of the extended protrusion, the first through hole and the second through hole are all elliptical; the through channel extends downward and penetrates the bottom of the extended protrusion, and the outer side of the extended protrusion is attached to the hole wall of the first through hole and the second through hole.

[0011] In the utility model, the upper end protrusion of the top cover shell is provided with a lifting protrusion that slides in the through channel, and the top view cross-sections of the lifting protrusion and the through channel are both elliptical; the adjusting screw hole is provided on the lifting protrusion.

[0012] In the utility model, the rotating circular groove is provided with a plurality of rotating matching protrusions distributed around its circumference, and the outer circumferential surface of the water retaining ring is provided with a fixed limiting protrusion. When the water retaining ring is fitted into the rotating circular groove, the fixed limiting protrusion is buckled on the upper part of the rotating matching protrusion.

[0013] In the utility model, a plurality of positioning bosses are provided at the bottom of the fixing seat, a plurality of matching protrusions distributed around the periphery of the first through hole are provided on the inner side of the shell, a plurality of matching connection holes corresponding one to one to the matching protrusions are provided on the outer side of the shell, the matching connection holes extend to the matching protrusions, and each matching protrusion is positioned and matched in one of the matching connection holes.

[0014] In the utility model, the positioning boss is located in the inner circle of the second installation groove.

[0015] In the utility model, the buffer structure layer includes a foam main body layer and two left and right pairs of foam side split layers. The second through hole is arranged on the foam main body layer. The front lower part of the left and right ends of the foam main body layer is provided with a split adaptation position corresponding to the left and right ear positions of the user. A foam side split layer is adapted and installed in each of the split adaptation positions. The foam main body layer and the two left and right pairs of foam side split layers enclose the head cavity.

[0016] In the utility model, the surfaces of the foam main layer and the foam side split layer not covered by the outer shell are wrapped with a first flexible lining; a second flexible lining is connected to the lower surface of the top cover shell, and the outer peripheral edge of the second flexible lining is connected to the first flexible lining located on the foam main layer.

[0017] The beneficial effects of the utility model are as follows: a fixing seat is firstly provided on the outer shell, and then an adjusting block for connecting and driving the top cover shell to adjust its position is rotatably installed on the fixing seat, wherein a first waterproof structure is provided between the fixing seat and the outer shell, so that rainwater is not easy to penetrate into the helmet from between the outer shell and the fixing seat; and a water retaining ring is provided on the fixing seat and extends into the rotating circular groove at the bottom of the adjusting block, and the water retaining ring is used to prevent rainwater from penetrating from the through hole, and at the same time a second waterproof structure is provided between the water retaining ring and the wall of the rotating circular groove, so as to enhance the waterproof effect, effectively reduce the probability of water penetrating into the inside of the helmet from the position above the top cover shell, ensure the user's comfort in rainy days, and enhance the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 is a three-dimensional diagram of this embodiment;

[0020] Figure 2 is an internal structure diagram of this embodiment;

[0021] Figure 3 for Figure 2 A magnified view of middle;

[0022] Figure 4 This is a schematic diagram of the installation of the adjustment component;

[0023] Figure 5 To adjust the explosion of components Figure 1 ;

[0024] Figure 6 To adjust the explosion of components Figure 2 . DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0026] Reference Figure 1-6 , an adjustable helmet structure, comprising a shell 1, a buffer structure layer 2 arranged in the shell 1, the interior of the buffer structure layer 2 is a head cavity 100, the top of the head cavity 100 is provided with a head cover shell 3, the top of the head cover shell 3 is provided with an adjustment screw hole 31, the top of the shell 1 is provided with a first through hole 11, and the buffer structure layer 2 is provided with a second through hole 21 corresponding to the first through hole 11 and forming a mounting channel; characterized in that: the top of the shell 1 is provided with an adjustment component, the adjustment component includes a fixing seat 4 and an adjustment block 5 rotatably mounted on the fixing seat 4; the fixing seat 4 is installed on the top of the shell 1, and a first waterproof structure is provided between the fixing seat 4 and the shell 1;

[0027] A rotating circular groove 51 is provided at the bottom of the adjusting block 5, and a water retaining ring 41 is provided at the upper part of the fixing seat 4. The upper end of the water retaining ring 41 extends into the rotating circular groove 51, and the water retaining ring 41 is provided with a second waterproof structure for contacting with the groove wall of the rotating circular groove 51 to achieve waterproofing; the water retaining ring 41 is provided with a through channel 42 corresponding to the installation channel, and the adjusting block 5 is provided with an adjusting screw 52 threadedly connected to the adjusting screw hole 31 in the through channel 42.

[0028] The utility model firstly provides a fixing seat 4 on the outer shell 1, and then rotatably installs an adjusting block 5 for connecting and driving the top cover shell 3 to adjust the position on the fixing seat 4, wherein a first waterproof structure is provided between the fixing seat 4 and the outer shell 1, so that rainwater is not easy to penetrate into the helmet from between the outer shell 1 and the fixing seat 4; and a water retaining ring 41 is provided on the fixing seat 4 and extends into a rotating circular groove 51 at the bottom of the adjusting block 5, and the water retaining ring 41 is used to prevent rainwater from penetrating from the through hole, and at the same time, a second waterproof structure is provided between the water retaining ring 41 and the groove wall of the rotating circular groove 51, so as to enhance the waterproof effect, effectively reduce the probability of water penetrating into the interior of the helmet from the position above the top cover shell 3, ensure the user's comfort in rainy days, and enhance the user's experience.

[0029] As a preferred embodiment, a first mounting groove 44 is provided at the bottom of the fixing seat 4, and the first waterproof structure includes a first sealing rubber ring 6, which is fitted in the first mounting groove 44 and one end of which is pressed against the outer surface of the outer shell 1, thereby achieving waterproofing between the fixing seat 4 and the outer shell 1.

[0030] As a preferred embodiment, a second mounting groove 45 is provided on the top of the water retaining ring 41, and the second waterproof structure includes a second sealing rubber ring 7, which is installed in the second mounting groove 45 and one end of which is pressed against the top wall of the rotating circular groove 51, thereby achieving a waterproof effect.

[0031] As a preferred embodiment, the bottom of the fixing seat 4 is provided with an extended protrusion 43 matched and installed in the first through hole 11 and the second through hole 21. The top-view cross-sections of the extended protrusion 43, the first through hole 11 and the second through hole 21 are all elliptical, and the outer side of the extended protrusion 43 is attached to the hole walls of the first through hole 11 and the second through hole 21. Through the above structure, the positioning quality of the fixed protrusion is enhanced, and the fixing seat 4 is simultaneously positioned and connected with the outer shell 1 and the buffer structure layer 2, thereby improving the installation stability of the fixing seat 4. Furthermore, the through channel 42 extends downward through the bottom of the extending protrusion 43, and the upper end protrusion of the top cover shell 3 is provided with a lifting protrusion 32 that slides in the through channel 42. The top view cross-sections of the lifting protrusion 32 and the through channel 42 are both elliptical, so that the top cover shell 3 cannot rotate in the circumferential direction; the adjusting screw hole 31 is provided on the lifting protrusion 32, so that the adjusting screw 52 can be matched and connected with the adjusting screw hole 31 in the through hole, and the cooperation between the lifting protrusion 32 and the through channel 42 is also used to improve the installation quality of the top cover shell 3.

[0032] As a preferred embodiment, the opening edge of the shell 1 is provided with a reinforced edging 8, and the reinforced edging 8 is wrapped around the opening edge of the shell 1, which can improve the structural stability of the opening position of the shell 1, thereby extending the service life of the helmet.

[0033] As a preferred embodiment, two ear cavities 200 corresponding to the two ears of the user are provided in the head cavity 100, so as to avoid the buffer structure layer 2 being pressed on the user's ears all the time, thereby improving the comfort of the user after wearing the helmet.

[0034] As a preferred embodiment, the rotating circular groove 51 is provided with a plurality of rotating matching protrusions 53 distributed around its circumference, and the outer peripheral surface of the water retaining ring 41 is provided with a fixed limiting protrusion 46. When the water retaining ring 41 is engaged into the rotating circular groove 51, the fixed limiting protrusion 46 is buckled on the upper part of the rotating matching protrusion 53, thereby achieving the purpose of rotatably installing the adjustment block 5 on the water retaining ring 41. At the same time, due to the mutual constraint and limitation between the fixed limiting protrusion 46 and the rotating matching protrusion 53, it is difficult for the adjustment block 5 to separate from the water retaining ring 41.

[0035] As a preferred embodiment, the adjustment block 5 is provided with an anti-slip protrusion 54 for increasing the friction between the adjustment block 5 and the user's hand, so that the user can adjust the position of the top cover shell 3 by rotating the adjustment block 5 by hand.

[0036] As a preferred embodiment, the bottom of the fixing seat 4 is provided with a plurality of positioning convex columns 47, and the plurality of positioning convex columns 47 are distributed around the outer periphery of the through-channel 42, and the inner side of the housing 1 is provided with a plurality of matching convex portions 12 distributed around the outer periphery of the first through-hole 11, and the outer side of the housing 1 is provided with a plurality of matching connection holes corresponding to the matching convex portions 12, and the matching connection holes extend to the matching convex portions 12, and each matching convex portion 12 is positioned and matched in one of the matching connection holes, so as to achieve the circumferential positioning between the fixing seat 4 and the housing 1, and to prevent the fixing seat 4 from rotating when the adjusting block 5 rotates, thereby affecting the fixing effect of the fixing seat 4; then the matching convex portions 12 are interspersed with fixing screws 9 threadedly connected and matched with the positioning convex columns 47, so as to achieve the purpose of fixing the fixing seat 4 on the housing 1. In this embodiment, the positioning convex columns 47 are located in the inner circle of the second mounting groove 45, so as to prevent water from penetrating into the interior of the housing 1 from the matching connection hole position.

[0037] As a preferred embodiment, the buffer structure layer 2 includes a foam main body layer 22, two foam side split layers 23 arranged in pairs on the left and right sides, the second through hole 21 is arranged on the foam main body layer 22, and the front lower part of the left and right ends of the foam main body layer 22 is provided with a split fitting position corresponding to the left and right ear positions of the user, and a foam side split layer 23 is fitted and installed in each of the split fitting positions, and the foam main body layer 22 and the two foam side split layers 23 arranged in pairs on the left and right sides enclose the head cavity 100, and the foam side split is provided with a concave groove on one side facing the head cavity 100, and the concave groove is combined with the corresponding split fitting position to form the ear cavity 200. By forming the buffer structure layer 2 with the foam main body layer 22 and the two foam side split layers 23, the problem that the buffer structure layer 2 cannot be put into the shell 1 due to the integral molding can be avoided.

[0038] As a preferred embodiment, the surfaces of the foamed main body layer 22 and the foamed side split layer 23 that are not covered by the outer shell 1 are wrapped with a first flexible lining 24, and the first flexible lining 24 is made of flexible cloth, which can be fixed on the foamed main body layer 22 and the foamed side split layer 23 by bonding. Furthermore, a second flexible lining 25 is connected to the lower surface of the top cover shell 3, and the outer peripheral edge of the second flexible lining 25 is connected to the first flexible lining 24 located on the foamed main body layer 22, so that the combination of the second flexible lining 25 and the first flexible lining 24 completely covers the top cover shell 3, thereby improving the appearance of the helmet.

[0039] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the protection scope of the present invention.

Claims

1. An adjustable helmet structure, comprising an outer shell (1), and a buffer structure layer (2) arranged in the outer shell (1), the interior of the buffer structure layer (2) being a head receiving cavity (100), a head cover shell (3) being arranged at the top of the head receiving cavity (100), an adjustment screw hole (31) being arranged at the top of the head cover shell (3), a first through hole (11) being arranged at the top of the outer shell (1), and a second through hole (21) being arranged on the buffer structure layer (2) and correspondingly communicating with the first through hole (11) and constituting a mounting channel; the characteristics are as follows: An adjustment component is provided on the top of the housing (1), the adjustment component comprising a fixing seat (4) mounted on the top of the housing (1) and an adjustment block (5) rotatably mounted on the fixing seat (4), and a first waterproof structure is provided between the fixing seat (4) and the housing (1); The bottom of the adjusting block (5) is provided with a rotating circular groove (51), the upper part of the fixing seat (4) is provided with a water retaining ring (41), the upper end of the water retaining ring (41) extends into the rotating circular groove (51), and the water retaining ring (41) is provided with a second waterproof structure for contacting with the groove wall of the rotating circular groove (51) to achieve waterproofing; the water retaining ring (41) is provided with a through channel (42) corresponding to the installation channel, and the adjusting block (5) is provided with an adjusting screw (52) threadedly connected to the adjusting screw hole (31) in the through channel (42).

2. An adjustable helmet structure according to claim 1, characterized in that: A first mounting groove (44) is provided at the bottom of the fixing seat (4), and the first waterproof structure comprises a first sealing rubber ring (6). The first sealing rubber ring (6) is fitted in the first mounting groove (44) and one end of the first sealing rubber ring is pressed against the outer surface of the housing (1).

3. The adjustable helmet structure according to claim 1, characterized in that: A second mounting groove (45) is provided on the top of the water retaining ring (41). The second waterproof structure comprises a second sealing rubber ring (7). The second sealing rubber ring (7) is installed in the second mounting groove (45) and one end of the second sealing rubber ring is pressed against the groove top wall of the rotating circular groove (51).

4. The adjustable helmet structure according to claim 1, characterized in that: The bottom of the fixing seat (4) is provided with an extended protrusion (43) matched and mounted in the first through hole (11) and the second through hole (21); the top view cross-sections of the extended protrusion (43), the first through hole (11) and the second through hole (21) are all elliptical; the through channel (42) extends downward and penetrates the bottom of the extended protrusion (43); the outer side of the extended protrusion (43) is attached to the hole walls of the first through hole (11) and the second through hole (21).

5. The adjustable helmet structure according to claim 4, characterized in that: The upper end protrusion of the head cover shell (3) is provided with a lifting protrusion (32) that is slidably fitted in the through channel (42), and the top view cross-sections of the lifting protrusion (32) and the through channel (42) are both elliptical; the adjusting screw hole (31) is provided on the lifting protrusion (32).

6. The adjustable helmet structure according to claim 1, characterized in that: The rotating circular groove (51) is provided with a plurality of rotating matching protrusions (53) distributed around its circumference, and the outer circumferential surface of the water retaining ring (41) is provided with a fixed limiting protrusion (46). When the water retaining ring (41) is fitted into the rotating circular groove (51), the fixed limiting protrusion (46) is buckled on the upper part of the rotating matching protrusion (53).

7. The adjustable helmet structure according to claim 1, characterized in that: The bottom of the fixing seat (4) is provided with a plurality of positioning bosses (47), the inner side of the shell (1) is provided with a plurality of matching protrusions (12) distributed around the periphery of the first through hole (11), and the outer side of the shell (1) is provided with a plurality of matching connection holes corresponding one to one to the matching protrusions (12), the matching connection holes extending to the matching protrusions (12), and each matching protrusion (12) is positioned and matched in one of the matching connection holes.

8. The adjustable helmet structure according to claim 7, characterized in that: The positioning boss (47) is located in the inner circle of the second installation groove (45).

9. The adjustable helmet structure according to claim 1, characterized in that: The buffer structure layer (2) comprises a foam main body layer (22), and two foam side split layers (23) arranged in pairs on the left and right sides; the second through hole (21) is arranged on the foam main body layer (22); a split adapting position corresponding to the position of the left and right ears of a user is provided at the front lower part of the left and right ends of the foam main body layer (22); a foam side split layer (23) is adapted and installed in each of the split adapting positions; the foam main body layer (22) and the two foam side split layers (23) arranged in pairs on the left and right sides enclose the head cavity (100).

10. The adjustable helmet structure according to claim 9, characterized in that: The surfaces of the foamed main body layer (22) and the foamed side split layer (23) not covered by the outer shell (1) are both wrapped with a first flexible lining (24); a second flexible lining (25) is connected to the lower surface of the head cover shell (3), and the outer peripheral edge of the second flexible lining (25) is connected to the first flexible lining (24) located on the foamed main body layer (22).

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