Safety helmet capable of being quickly self-locked

Abstract

The utility model discloses a safety helmet capable of being quickly self-locked, and relates to the technical field of safety helmets, the safety helmet comprises a shell, a first belt and a second belt, the first belt and the second belt are arranged at the bottom of the shell, and the length size of the second belt is larger than that of the first belt; a first block disposed on the first belt; the first belt is movably connected to the second belt through the first block body; a second block body, wherein the second block body is detachably mounted on the second belt; the second block body is used for blocking the first block body on the second belt, so that the moving range of the first block body on the second belt is controlled between the shell and the second block body; and when the first block body is propped by the second block body, the first belt and the second belt can be fixedly connected to the chin part of a human body. According to the safety helmet, the safety helmet can be rapidly fixed when used by different users, and the stability after the shell is worn can be guaranteed.

Description

Technical Field

[0001] This application relates to the field of safety helmet technology, and more particularly to a safety helmet capable of quick self-locking. Background Technology

[0002] A safety helmet is a type of helmet worn on the human head to protect it and reduce the risk of injury from direct impacts from external objects.

[0003] Safety helmets typically consist of a shell, a liner inside the shell, and two chin straps at the bottom of the shell. The two chin straps are connected by plastic buckles. After the operator puts the helmet on, they can use the buckles to secure the ends of the two chin straps away from the shell to the chin area, thus ensuring the helmet's stability on the head.

[0004] However, different users have different head sizes. After securing the two chin straps with plastic buckles, there is a high probability that the two chin straps will be too tight or too loose relative to the user's head. In this case, the user often needs to adjust the length of the chin straps before securing them again. The whole process is very cumbersome and needs improvement. Utility Model Content

[0005] Purpose of the invention: This application provides a safety helmet that can quickly lock itself, aiming to improve the technical problem of the inconvenience of quickly fixing the helmet when it is used by different users.

[0006] Technical Solution: This application provides a safety helmet capable of quick self-locking, including a shell and a first strap and a second strap disposed at the bottom of the shell, the second strap being longer than the first strap; a first block disposed on the first strap; the first strap being movably connected to the second strap via the first block; a second block being detachably mounted on the second strap; the second block is used to block the first block on the second strap, so that the movement range of the first block on the second strap is controlled between the shell and the second block; when the first block is pressed against the second block, the first strap and the second strap can be fixedly connected to the chin area of ​​the human body.

[0007] By adopting the above technical solution, the first strap is slidably connected to the second strap via the first block, so that the first and second straps can be adjusted in tightness and contact at the chin of the human body; after the first and second straps are contacted at the chin of the human body, the second block blocks the first block on the second strap, thereby enabling the first and second straps to quickly contact at the chin of the human body, realizing the rapid fixation of the first and second straps at the chin of the human body, while effectively ensuring the stability of the shell worn on the human head.

[0008] Furthermore, the first block is U-shaped, and after the first block is fitted onto the second belt, the first block can move along the extension direction of the second belt; the second block is U-shaped, and a mother block is provided inside the side wall of the second block, and multiple protrusions that can be adapted to and detachably connected to the mother block are provided at intervals on the side wall of the second belt, and the protrusions are fixed inside any one of the mother blocks.

[0009] By adopting the above technical solution, when the first belt and the second belt can abut against the chin of the human body, the mother block is fastened and fixed to the corresponding protrusion, so that the second block is fixed on the second belt, and the first block is blocked by the second block, thus ensuring the convenience and stability of fixing the first belt and the second belt to the chin of the human body.

[0010] Furthermore, an interference pad is provided inside the side wall of the second block at a position relative to the mother block to press the second block against the second belt.

[0011] By adopting the above technical solution, the interference pad can increase the coefficient of friction between the second block and the second belt, thereby reducing the loosening and deviation of the second block on the second belt after the female buckle and the protrusion are fixed, and ensuring the tightness of the connection between the first belt and the second belt at the chin of the human body.

[0012] Furthermore, a first magnetic block is provided on the end wall of the first block away from the first strip, and a second magnetic block is provided on the second block; the first magnetic block and the second magnetic block attract each other magnetically when they come into contact.

[0013] By adopting the above technical solution, the magnetic attraction between the first and second magnetic blocks helps to ensure the connection strength and positional stability of the first and second blocks, and helps to improve the tightness of the first and second belts on the chin of the human body.

[0014] Furthermore, the first belt is provided with a first adhesive tape, and the second belt is provided with a second adhesive tape on the portion outside the movement range of the first block. The first adhesive tape and the second adhesive tape are bonded and fixed after contact, so that the first belt and the second belt are fixedly connected.

[0015] By adopting the above technical solution, the part of the second strip away from the second block can be attached to the side wall of the first strip away from the human head. After the first adhesive strip and the second adhesive strip abut against each other, they are bonded together, ensuring the positional stability of the first strip and the second strip on the human chin.

[0016] Furthermore, a male buckle is provided at the end of the second band away from the housing, and a female buckle is provided at the bottom of the housing and on one side of the second band via an adjusting member. The adjusting member is used to adjust the distance between the female buckle and the housing. The male buckle can be fastened in the female buckle, so that the second band can be fixedly connected to the chin of the human body.

[0017] By adopting the above technical solution, after the male and female buckles are fastened together, the second strap is fixedly connected to the shell. This allows both the first and second straps to abut against the chin of the human body, and the portion of the second strap away from the second block can also abut against the chin independently. This facilitates quick and easy fastening of the first and second straps to the chin while ensuring the stability of the shell when worn on the head.

[0018] Furthermore, the adjusting member includes a support plate fixed to the bottom of the housing, a sleeve plate adapted to fit on the support plate, and a retaining bolt for fixing the sleeve plate on the support plate; the female buckle is disposed at the end of the sleeve plate away from the housing.

[0019] By adopting the above technical solution, after the sleeve plate moves relative to the support plate, the fixing bolt passes through the sleeve plate and is threaded onto the support plate, so that the distance between the female buckle housing and the male buckle can be quickly adjusted, and it also helps to ensure the connection strength of the male buckle and the female buckle.

[0020] Furthermore, the sidewall of the support plate is provided with a plurality of threaded grooves at intervals along its length, which can be used for threaded connection of the retaining bolts, and the retaining bolts are threadedly connected in any one of the threaded grooves.

[0021] By adopting the above technical solution, the fixing bolt thread is tightened in any thread groove to achieve quick fixation of the sleeve plate after it slides on the support plate, thereby improving the convenience of fixing the second belt to the human chin area.

[0022] In summary, this application has at least the following beneficial technical effects:

[0023] The first strap is slidably connected to the second strap via the first block, allowing the first and second straps to be adjusted in tightness and fit together at the chin. After the first and second straps fit together at the chin, the second block blocks the first strap, enabling the first and second straps to quickly fit together at the chin, thus achieving rapid fixation of the first and second straps at the chin and effectively ensuring the stability of the shell when worn on the head. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of a safety helmet capable of quick self-locking, as described in an embodiment of this application.

[0025] Figure 2 This is a schematic diagram of the first and second strips being applied in an embodiment of this application;

[0026] Figure 3 yes Figure 1 An enlarged schematic diagram of part A in the middle;

[0027] Figure 4 yes Figure 2 Enlarged schematic diagram of part B;

[0028] Figure 5 This is a schematic diagram of the second block in an embodiment of this application;

[0029] Figure 6 yes Figure 1 An enlarged schematic diagram of section C.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Housing; 2. First band; 21. First adhesive band; 3. Second band; 31. Protrusion; 32. Second adhesive band; 4. First block; 41. First magnetic block; 5. Second block; 51. Female block; 52. Interference pad; 53. Second magnetic block; 6. Male thread; 7. Adjusting component; 71. Support plate; 711. Threaded groove; 72. Sleeve plate; 73. Fixing bolt; 8. Female thread. Detailed Implementation

[0032] This application discloses a safety helmet capable of rapid self-locking.

[0033] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0034] Reference Figure 1A self-locking helmet includes a shell 1, a first strap 2, and a second strap 3. One end of the first strap 2 and the second strap 3 are fixed to the bottom of the shell 1 along their length, and the first strap 2 and the second strap 3 are located on opposite sides of the bottom of the shell 1. After the user puts the shell 1 on their head, the first strap 2 and the second strap 3 can be secured at the chin, thus fixing the shell 1 to the user's head.

[0035] Reference Figure 2 In this embodiment, the length of the first belt 2 is smaller than the length of the second belt 3.

[0036] Reference Figure 3 and Figure 4 The first band 2 has a first block 4 glued to the end away from the shell 1. The first block 4 can be a square-shaped block. After the user puts the shell 1 on his head, the first block 4 can be put on the second band 3 and move along the length of the second band 3 until the first band 2 and the second band 3 can abut against the chin of the human body.

[0037] Reference Figure 3 and Figure 5 A second block 5 is detachably mounted on the second belt 3. The second block 5 can also be a U-shaped block. The second block 5 is fitted onto the second belt 3, and the first block 4 is located between the second block 5 and the housing 1. A mother block 51 and an interference pad 52 are arranged opposite each other on the side wall of the second block 5, wherein the mother block 51 is the female buckle 8 in the male-female buckle 8.

[0038] Reference Figure 3 and Figure 5 The second band 3 has multiple protrusions 31 spaced along its length on its sidewall. These protrusions 31 are the female fasteners in the snap fastener 8. The second block 5 can move along the length of the second band 3 according to the size of the human head. When the first band 2 and the second band 3 simultaneously abut against the chin, the female block 51 can fasten and fix itself to the corresponding protrusion 31. At this time, the second block 5 is fixed to the second band 3, and the first block 4 is blocked by the second block 5 and cannot move along the length of the second band 3, thus ensuring the stability of the first band 2 and the second band 3 abutting against the chin.

[0039] Reference Figure 3 and Figure 5 In this embodiment, the interference pad 52 can be a rubber pad with a high coefficient of static friction on its outer surface and easy deformation. The rubber pad is located at the end of the second belt 3 away from the mother block 51 to limit the position of the second block 5 on the second belt 3, thereby reducing the phenomenon of the second block 5 shifting or wobbling relative to the second belt 3 after the mother block 51 is fixed with a single buckle.

[0040] Reference Figure 3To improve the positional stability of the first band 2 and the second band 3 against the chin of the human body, a first magnetic block 41 is glued to the first block 4, and a second magnetic block 53 is glued to the second block 5. When the first block 4 is blocked by the second block 5 on the second band 3, the first magnetic block 41 and the second magnetic block 53 can come into contact and attract each other magnetically, thereby increasing the tightness of the connection between the first block 4 and the second block 5, which helps to improve the positional stability of the first band 2 and the second band 3 against the chin of the human body.

[0041] Reference Figure 2 and Figure 6 To reduce the possibility of loosening of the connection between the shell 1 and the human head, a first adhesive tape 21 is provided on the first strip 2, and a second adhesive tape 32 is provided on the side of the mother block 51 away from the shell 1 on the second strip 3. In this embodiment, the first adhesive tape 21 and the second adhesive tape 32 can be adhesive strips that adhere to each other after contact in Velcro. Since the length of the second strip 3 is greater than the length of the first strip 2, when the first block 4 is blocked by the second block 5 on the second strip 3, the part of the second strip 3 below the second block 5 can adhere to the side wall of the first strip 2 away from the human head. At this time, the first adhesive tape 21 and the second adhesive tape 32 are bonded and fixed, ensuring the connection strength of the first strip 2 and the second strip 3.

[0042] Reference Figure 6 The second strip 3 is provided with a male buckle 6 at the end away from the housing 1. In this embodiment, the male buckle 6 can be a male buckle 6 in a plastic buckle. An adjustment member 7 is provided at the bottom of the housing 1 and on one side of the first strip 2. The end of the adjustment member 7 away from the housing 1 is provided with a female buckle 8 that can be adapted to and detachably connected with the male buckle 6. The female buckle 8 can be a male buckle 6 in a plastic buckle.

[0043] Reference Figure 6 The adjusting component 7 includes a support plate 71, a sleeve plate 72, and a fixing bolt 73. The support plate 71 can be a rectangular plate. The support plate 71 is fixed to the bottom of the housing 1 in a vertical direction. Multiple threaded grooves 711 are provided at intervals in a vertical direction on the side wall of the support plate 71 away from the first belt 2. The threaded grooves 711 are threaded and adapted to the fixing bolt 73.

[0044] Reference Figure 6The sleeve 72 can be a plate with an open top. The sleeve 72 fits snugly onto the support plate 71 and can move along the length of the support plate 71. The female buckle 8 is fixed at the end of the sleeve 72 away from the support plate 71. The retaining bolt 73 passes through the sleeve 72 and can be threaded into any of the threaded grooves 711, thus fixing the sleeve 72 onto the support plate 71. The male buckle 6 can be fixed onto the female buckle 8, so that the second strap 3 is pressed against the chin of the human body. When people with different head sizes wear the shell 1, the user can slide the sleeve 72 and then fix the sleeve 72 and the support plate 71 with the retaining bolt 73, so that the second strap 3 can be pressed against the chin of the human head.

[0045] The implementation principle of a self-locking safety helmet according to an embodiment of this application is as follows: After the shell 1 is worn on the head, the first strap 2 moves on the second strap 3 via the first block 4, so that both the first strap 2 and the second strap 3 can be pressed against the chin of the human body. Then, at the position where both the first strap 2 and the second strap 3 can be in contact with the chin of the human body, the mother block 51 on the second block 5 is fixedly fastened to the protrusion 31. At this time, the second block 5 is fixed on the second strap 3, the first block 4 can be blocked and positioned on the second block 5, and the first magnetic block 41 and the second magnetic block 53 are magnetically attracted to each other.

[0046] The portion of the second strap 3 located below the second block 5 can adhere to the side wall of the first strap 2 away from the head, with the first adhesive tape 21 and the second adhesive tape 32 abutting and adhering to each other. Finally, the male buckle 6 is fastened onto the female buckle 8, fixing the second strap 3 to the shell 1. This allows both the first strap 2 and the second strap 3 to abut against the chin, and the portion of the second strap 3 away from the second block 5 can also abut against the chin independently. This facilitates quick and easy fixation of the first strap 2 and the second strap 3 to the chin while ensuring the stability of the shell 1 when worn on the head.

[0047] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A safety helmet capable of quick self-locking, comprising a shell (1) and a first strap (2) and a second strap (3) arranged at the bottom of the shell (1), characterized in that, include: The length of the second strip (3) is greater than the length of the first strip (2); A first block (4) is disposed on the first belt (2); the first belt (2) is movably connected to the second belt (3) via the first block (4); The second block (5) is detachably mounted on the second belt (3); the second block (5) is used to block the first block (4) on the second belt (3) so that the range of movement of the first block (4) on the second belt (3) is controlled between the housing (1) and the second block (5); When the first block (4) is pressed against the second block (5), the first band (2) and the second band (3) can be fixedly connected to the chin of the human body.

2. The rapid self-locking safety cap according to claim 1, characterized in that, The first block (4) is shaped like a square. After the first block (4) is fitted onto the second belt (3), the first block (4) can move along the extension direction of the second belt (3). The second block (5) is shaped like a square. A mother block (51) is provided inside the side wall of the second block (5). Multiple protrusions (31) that can be adapted to and detachably connected to the mother block (51) are provided at intervals on the side wall of the second strip (3). The protrusions (31) are fixed inside any one of the mother blocks (51).

3. A safety hat capable of quick self-locking according to claim 2, characterized in that, Inside the side wall of the second block (5), at a position relative to the mother block (51), there is also an interference pad (52) for pressing the second block (5) against the second belt (3).

4. The quick self-locking safety cap according to claim 2, characterized in that, A first magnetic block (41) is provided on the end wall of the first block (4) away from the first strip (2), and a second magnetic block (53) is provided on the second block (5); the first magnetic block (41) and the second magnetic block (53) attract each other magnetically after they come into contact.

5. A safety hat capable of fast self-locking according to claim 3 or 4, characterized in that, The first strip (2) is provided with a first adhesive tape (21), and the second strip (3) is provided with a second adhesive tape (32) on the part outside the moving range of the first block (4). The first adhesive tape (21) and the second adhesive tape (32) are bonded and fixed after contact, so that the first strip (2) and the second strip (3) are fixedly connected.

6. The quick self-locking safety cap according to claim 2, wherein, The second band (3) has a male buckle (6) at one end away from the housing (1), and a female buckle (8) is provided at the bottom of the housing (1) and on one side of the second band (3) via an adjusting member (7). The adjusting member (7) is used to adjust the distance between the female buckle (8) and the housing (1). The male buckle (6) can be fastened in the female buckle (8) so that the second band (3) can be fixedly connected to the chin of the human body.

7. A safety hat capable of quick self-locking according to claim 6, characterized in that, The adjusting member (7) includes a support plate (71) fixed to the bottom of the housing (1), a sleeve plate (72) adapted to be fitted on the support plate (71), and a retaining bolt (73) for fixing the sleeve plate (72) on the support plate (71); the female buckle (8) is disposed at one end of the sleeve plate (72) away from the housing (1).

8. A safety hat capable of quick self-locking according to claim 7, characterized in that, The side wall of the support plate (71) is provided with a plurality of threaded grooves (711) capable of threadedly connecting the retaining bolt (73) at intervals along the length direction, and the retaining bolt (73) is threadedly connected in any one of the threaded grooves (711).

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