Safety helmet assembly with detachable braid

Abstract

The utility model discloses a safety helmet assembly with a detachable braid, and relates to the technical field of helmets. The cap comprises a cap body and a female buckle structure arranged on the inner side wall body of the cap body. The braid assembly comprises a male buckle structure which can be clamped and matched with the female buckle structure; a female buckle clamping groove is formed in the female buckle structure, the male buckle structure comprises a buckle body and a middle buckle head arranged on the buckle body, a plurality of side buckle heads are arranged on the buckle body and located on the two sides of the middle buckle head, a protruding buckle head buckle is arranged on the middle buckle head, and the middle buckle head can penetrate through the female buckle clamping groove so that the buckle head buckle can abut against the end face of the buckle head buckle. According to the safety helmet assembly, the braid can be replaced conveniently, and meanwhile the structural connection strength of the safety helmet and the braid is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of helmets, and more specifically to a safety helmet assembly with a detachable webbing. Background Art

[0002] With the development of society, people's awareness of wearing helmets safely has been greatly improved. Among them, the helmet includes a helmet body and a webbing, and the webbing is used to bind the user's head and connect the user's head and the helmet body. In the prior art, the webbing is connected to the helmet body by riveting or buckling. At this time, the webbing is connected to the side of the helmet body by riveting. Once fixed, it cannot be removed, resulting in low convenience of replacing the existing webbing relative to the helmet body. Utility Model Content

[0003] In order to overcome the above technical deficiencies, the utility model provides a safety helmet assembly with a detachable webbing, which can ensure the connection strength between the safety helmet and the webbing structure while realizing the convenient replacement of the webbing.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a safety helmet assembly with detachable webbing, comprising a cap body, a female buckle structure, which is arranged on the inner wall of the cap body; a webbing assembly, comprising a male buckle structure that can be snap-fitted with the female buckle structure; a female buckle slot is provided on the female buckle structure, the male buckle structure comprises a buckle body and a middle buckle head arranged on the buckle body, a plurality of side buckles are provided on the buckle body, which are located on both sides of the middle buckle head, a raised buckle head buckle is provided on the middle buckle head, and the middle buckle head can pass through the female buckle slot so that the buckle head buckle abuts against its end face.

[0005] The present application provides a helmet assembly with a detachable webbing. The specific implementation method is that when the male buckle structure needs to be connected to the female buckle structure, the male buckle structure can pass through the female buckle slot on the female buckle structure, specifically, the middle buckle head can pass through the female buckle slot, so that the buckle head buckle abuts and fastens with the upper end face of the female buckle structure. When the male buckle structure needs to be disconnected from the female buckle structure, the wall of the buckle head buckle is pushed by manpower to smoothly disengage it from the upper wall of the female buckle structure, and then the male buckle structure is pulled out to achieve the separation of the two. The male buckle structure and the female buckle structure can ensure the connection strength between the helmet and the webbing structure while achieving the convenient replacement of the webbing containing the male buckle structure.

[0006] Preferably, a protrusion is provided on the wall of the female buckle slot near the cap body, a guide slope is provided on the protrusion, and an arc-shaped guide sliding surface inclined toward the back is provided at the end of the buckle head buckle. The provision of the protrusion and the arc-shaped guide sliding surface can make the sliding insertion and installation of the male buckle structure and the female buckle structure more convenient.

[0007] Preferably, an inner concave surface is provided on the middle buckle head, so that a high and low step structure is formed at the connection between the buckle body and the middle buckle head, and the same side surface of the side buckle head is higher than the inner concave surface. After the male buckle structure and the female buckle structure are slidably inserted and installed, they abut against the inner concave surface of the middle buckle head, thereby realizing left and right direction limitation. At the same time, because the same side surface of the inner concave surface of the side buckle head on the middle buckle head is slightly higher than the inner concave surface, the front and rear direction limitation of the middle buckle head can be realized through the protrusion, thereby avoiding horizontal movement in the female buckle slot after the male buckle structure and the female buckle structure are slidably inserted and installed.

[0008] Preferably, a groove is provided on the arc-shaped guide surface. The provision of the groove can prevent the protrusion from interfering with the male buckle structure when the buckle head buckle is pushed manually, thereby allowing the male buckle structure to be smoothly disengaged from the female buckle structure.

[0009] Preferably, an arc-shaped groove is provided on the end surface of the female buckle slot, a top-connecting protrusion is provided on the arc-shaped groove along its bottom wall, and an inclined surface is obliquely provided between the top-connecting protrusion and the arc-shaped groove.

[0010] Preferably, the lower end of the buckle head buckle is provided with an arc surface. The buckle head buckle with the arc surface contacts with the top connection protrusion in the arc groove to form a disengagement buckle structure.

[0011] Preferably, an arc-shaped slot that can cooperate with the top-connecting protrusion is provided in the lower end surface of the buckle head buckle. The buckle head buckle with the arc-shaped slot contacts the top-connecting protrusion in the arc-shaped groove to form a non-detachable buckle structure.

[0012] Preferably, the webbing assembly also includes two groups of cross-connected first webbings, the first end of the first webbing is connected to the male buckle structure, the second end of the first webbing is provided with a connecting member 1, the second webbing and the third webbing are respectively provided on the connecting members 1 on both sides, the second webbing is provided with a female buckle connecting member, the third webbing is provided with a male buckle connecting member, and the female buckle connecting member and the male buckle connecting member can be snap-connected and fixed.

[0013] When the webbing needs to be connected to the male buckle structure, the second webbing and the third webbing are first connected to the two groups of first webbing through the connector 1, and the two groups of first webbing are cross-staggered and connected through the connecting ring. The first ends of the two groups of first webbing and the other ends of the second webbing and the third webbing passing through the connector 1 are all connected to the male buckle structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are: (1) the present application can realize the convenient replacement of the webbing assembly while ensuring the connection strength between the safety helmet and the webbing structure; (2) there are two types of buckle buckles 403 on the webbing assembly, one is a disengagement buckle and the other is a non-disengagement buckle, which can be replaced in different situations according to the force requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1The utility model is a cross-sectional view of a safety helmet with a detachable webbing.

[0016] Figure 2 The utility model is a front view of a safety helmet with a detachable webbing.

[0017] Figure 3 yes Figure 2 Partial cross-sectional view at “AA” in the figure.

[0018] Figure 4 It is a structural schematic diagram of the webbing assembly of the utility model.

[0019] Figure 5 It is a structural schematic diagram of the non-detachable male buckle structure of the utility model.

[0020] Figure 6 yes Figure 5 Cross-sectional view at "BB" in the figure.

[0021] Figure 7 It is a structural schematic diagram of the disengagement male buckle structure of the utility model.

[0022] Figure 8 yes Figure 7 Sectional view at “CC” in the figure.

[0023] In the figure: cap body 100; female buckle structure 200; webbing assembly 300; female buckle slot 201; support section 202; connecting section 203; protrusion 204; guide slope 205; arc groove 206; top protrusion 207; inclined surface 208; first webbing 301; connecting ring 302; connector 1 303; second webbing 304; third webbing 305; female buckle connector 306; male buckle connector 307; male buckle structure 400; buckle body 401; middle buckle head 402; buckle head buckle 403; through hole 1 404; arc protrusion 405; through hole 2 406; inner concave surface 407; arc transition surface 408; side buckle head 409; arc guide surface 410; transverse groove 411; groove 412; arc surface 413; arc slot 414. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0025] Example 1: See attached Figure 1 To Attachment Figure 5A helmet assembly with detachable webbing comprises a cap body 100; a female buckle structure 200, which has four groups and is arranged at intervals on the inner wall of the cap body 100; a webbing assembly 300, which comprises a male buckle structure 400 that can be snap-fitted with the female buckle structure 200 and a plurality of webbings connected to the male buckle structure 400; a female buckle slot 201 is provided on the female buckle structure 200, the male buckle structure 400 comprises a buckle body 401 and a middle buckle head 402 arranged on the buckle body 401, two groups of side buckles 409 are provided on the buckle body 401, which are located on both sides of the middle buckle head 402, a raised buckle head buckle 403 is provided on the middle buckle head 402, and the middle buckle head 402 can pass through the female buckle slot 201, so that the buckle head buckle 403 abuts against the upper end surface of the female buckle structure 200.

[0026] See attached Figure 4 The webbing assembly 300 also includes two groups of cross-arranged first webbings 301, and a connecting ring 302 is provided between the two groups of the first webbings 301 for cross-staggered connection of the two groups of the first webbings 301. The two groups of the first webbings 301 can be movably adjusted after being connected by the connecting ring 302. The first end of the first webbing 301 is connected to the male buckle structure 400, and the second end of the first webbing 301 is provided with a connecting piece 303. The two groups of the first webbing 301 and the connecting piece 303 are respectively provided with a second webbing 304 and a third webbing 305. After the second webbing 304 and the third webbing 305 are connected through the connecting piece 303, the second webbing 304 and the third webbing 305 can also be adjusted based on the connecting piece 303. The second webbing 304 is provided with a female buckle connector 306, and the third webbing 305 is provided with a male buckle connector 307. The female buckle connector 306 and the male buckle connector 307 can be snap-connected and fixed.

[0027] Specific implementation: When the webbing needs to be connected to the male buckle structure 400, the second webbing 304 and the third webbing 305 are first connected to the two groups of the first webbing 301 through the connector 1 303, and the two groups of the first webbing 301 are cross-staggered and connected through the connecting ring 302. The first ends of the two groups of the first webbing 301 and the other ends of the second webbing 304 and the third webbing 305 passing through the connector 1 303 are all connected to the male buckle structure 400. When the male buckle structure 400 needs to be connected to the female buckle structure 200, the male buckle structure 400 can pass through the female buckle slot 201 on the female buckle structure 200, specifically, the middle buckle head 402 can pass through the female buckle slot 201, so that the buckle head buckle 403 is abutted and fastened with the upper end surface of the female buckle structure 200. When the male buckle structure 400 needs to be disconnected from the female buckle structure 200, the buckle head buckle 403 is pushed manually to disengage from the side wall that is engaged with the female buckle structure, so that it can be smoothly disengaged from the upper side wall of the female buckle structure 200, and then the male buckle structure 400 is pulled out to achieve the separation of the two. The male buckle structure 400 and the female buckle structure 200 can ensure the connection strength between the safety helmet and the webbing structure while realizing the convenient replacement of the webbing containing the male buckle structure 400.

[0028] Embodiment 2:

[0029] See attached Figure 1 To Attachment Figure 5 This embodiment is a further limitation of the female buckle structure 200 based on the embodiment 1. The female buckle structure 200 includes a support section 202 and two groups of connecting sections 203. The two groups of connecting sections 203 are respectively arranged on both sides of the support section 203. The connecting sections 202 and the support sections 203 are arranged vertically, so that the female buckle structure 200 is a "U"-shaped structure. The connecting section 203 is a right-angled trapezoidal structure. The bottom edge end face of the connecting section 203 is fixedly arranged on the inner wall of the cap body 100. The upper edge end face of the connecting section 203 is fixedly connected to the support section 202. The support section 202 and the connecting section 203 reserve a section of area on the upper side close to the hypotenuse. The support section 202 and the connecting section 203 are completely connected on the upper side close to the right angle side, and also protrude a section of area to the lower side. The connection points between the two groups of connecting sections 203 and the supporting sections 202 are both provided with arc chamfers, and the lower end faces of the supporting sections 202 are in an arc-shaped surface structure. The arc chamfers and the arc-shaped surface structure are both used to protect the user's head, avoiding head injuries caused by the sharp outer corners of the female buckle structure 200.

[0030] Embodiment 3:

[0031] See attached Figure 1 To Attachment Figure 5 This embodiment is a further limitation of the male buckle structure 400 based on the embodiment 1. The buckle body 401 on the male buckle structure 400 is connected to the end of the webbing. The buckle body 401 is a square frame structure, and the four corners of the buckle body 401 are arc chamfered, which is used for head protection of the webbing assembly after installation. A through hole 1 404 is provided on the buckle body 401. A side wall of the through hole 1 404 away from the middle buckle head 402 is provided with an arc-shaped protrusion 405. A through hole 2 406 is provided on the buckle body 401 below the arc-shaped protrusion 405. The through hole 1 404 is provided for inserting the webbing for connection, and the arc-shaped protrusion 405 is provided to increase the contact area of ​​the webbing connection, so that when the buckle body 401 on the male buckle structure 400 and the webbing are subjected to force, the vertical tension of the webbing on the buckle body 401 is reduced, thereby increasing the tension range that the male buckle structure 400 and the female buckle structure 200 can withstand after connection, thereby improving the safety of the helmet. The through hole 2 406 is an arc-shaped through hole, which is provided at the lower side of the through hole 1 404, so that the bottom wall of the through hole 1 404 has a certain elastic buffering effect, which can further realize the force protection of the male buckle structure 400 and the female buckle structure 200 after connection.

[0032] Embodiment 4:

[0033] See attached Figure 1 To Attachment Figure 5 This embodiment further defines the male buckle structure based on the embodiment 2. The buckle body 401 on the male buckle structure 400 is connected to the end of the webbing. The buckle body 401 is a square frame structure, and the four corners of the buckle body 401 are arc chamfered, which is used for head protection of the webbing assembly after installation. A through hole 1 404 is provided on the buckle body 401. A side wall of the through hole 1 404 away from the middle buckle head 402 is provided with an arc-shaped protrusion 405. A through hole 2 406 is provided on the buckle body 401 below the arc-shaped protrusion 405. The through hole 1 404 is provided for inserting the webbing for connection, and the arc-shaped protrusion 405 is provided to increase the contact area of ​​the webbing connection, so that when the buckle body 401 on the male buckle structure 400 and the webbing are subjected to force, the vertical tension of the webbing on the buckle body 401 is reduced, thereby increasing the tension range that the male buckle structure 400 and the female buckle structure 200 can withstand after connection, thereby improving the safety of the helmet. The through hole 2 406 is an arc-shaped through hole, which is provided at the lower side of the through hole 1 404, so that the bottom wall of the through hole 1 404 has a certain elastic buffering effect, which can further realize the force protection of the male buckle structure 400 and the female buckle structure 200 after connection.

[0034] Embodiment 5:

[0035] See attached Figure 1 To Attachment Figure 5 This embodiment is a further limitation of the male buckle structure 400 based on the embodiment 3. An inner concave surface 407 is provided on the middle buckle head 402, so that a high and low step structure is formed at the connection between the buckle body 401 and the middle buckle head 402, and an arc-shaped transition surface 408 is provided at the connection between the buckle body 401 and the middle buckle head 402. The side buckles 409 on both sides are slightly higher than the inner concave surface 407 on the same side of the inner concave surface of the middle buckle head 402, and the side buckles 409 on both sides are in the same horizontal plane with the other side wall surface of the middle buckle head 402. The side wall of the buckle head buckle 403 away from the inner concave surface 407 of the middle buckle head 402 is higher than the same side wall surface of the side buckle head 409.

[0036] A protrusion 204 is provided on the cap body 100 at the middle position inside the female buckle slot 200, and the protrusion 204 is arranged along the through direction of the female buckle slot 201. A guide slope 205 is provided on the side of the direct edge of the protrusion 204 close to the connecting section 203. An arc-shaped guide sliding surface 410 inclined toward the inner concave surface 407 on the back side is provided on the end of the buckle head buckle 403, and the arc-shaped guide sliding surface 410 can cooperate with the guide slope on the protrusion 204, so that the male buckle structure 400 is more convenient to be slidably inserted and installed into the female buckle slot 201 in the female buckle structure 200. The setting of the protrusion 204 can abut against the inner concave surface 407 of the middle buckle head 402 after the male buckle structure 400 and the female buckle structure 200 are slidably installed, thereby realizing left and right direction limitation. At the same time, because the same side of the inner concave surface 407 of the side buckle head 409 on the middle buckle head 402 is slightly higher than the inner concave surface 407, the front and rear direction limitation of the middle buckle head 402 can be realized by the protrusion 204, thereby avoiding horizontal movement of the male buckle structure 400 in the female buckle slot 201 after the male buckle structure 400 and the female buckle structure 200 are slidably installed.

[0037] Embodiment 6:

[0038] See attached Figure 1 To Attachment Figure 5This embodiment is a further limitation of the male buckle structure 400 based on the embodiment 4. An inner concave surface 407 is provided on the middle buckle head 402, so that a high and low step structure is formed at the connection between the buckle body 401 and the middle buckle head 402, and an arc-shaped transition surface 408 is provided at the connection between the buckle body 401 and the middle buckle head 402. The side buckles 409 on both sides are slightly higher than the inner concave surface 407 on the same side of the inner concave surface of the middle buckle head 402, and the side buckles 409 on both sides are in the same horizontal plane with the other side wall surface of the middle buckle head 402. The side wall of the buckle buckle 403 away from the inner concave surface 407 of the middle buckle head 402 is higher than the same side wall surface of the side buckle head 409.

[0039] See attached Figure 1 To Attachment Figure 5 A protrusion 204 is provided on the cap body 100 at the middle position inside the female buckle slot 200. The protrusion 204 is arranged along the through direction of the female buckle slot 201. A guide slope 205 is provided on the side of the protrusion 204 close to the direct edge of the connecting section 203. An arc-shaped guide sliding surface 410 inclined toward the inner concave surface 407 on the back is provided on the end of the buckle head buckle 403. The arc-shaped guide sliding surface 410 can cooperate with the guide slope on the protrusion 204, so that the male buckle structure 400 is more convenient to be slidably inserted into the female buckle slot 201 in the female buckle structure 200. The setting of the protrusion 204 can abut against the inner concave surface 407 of the middle buckle head 402 after the male buckle structure 400 and the female buckle structure 200 are slidably installed, thereby realizing left and right direction limitation. At the same time, because the same side of the inner concave surface 407 of the side buckle head 409 on the middle buckle head 402 is slightly higher than the inner concave surface 407, the front and rear direction limitation of the middle buckle head 402 can be realized by the protrusion 204, thereby avoiding horizontal movement of the male buckle structure 400 in the female buckle slot 201 after the male buckle structure 400 and the female buckle structure 200 are slidably installed.

[0040] Embodiment 7:

[0041] This embodiment is a further limitation of the buckle buckle 403 based on the fifth embodiment.

[0042] See attached Figure 1 To Attachment Figure 5 Three transverse grooves 411 are evenly spaced on one side wall of the buckle head buckle 403 away from the inner concave surface 407 of the middle buckle head 402. The transverse grooves 411 can be pushed by human power to increase the contact area between the human hand and the buckle head buckle 403 when the male buckle structure 400 is disengaged from the female buckle structure 200, thereby increasing the friction between the two, making it more convenient for the male buckle structure 400 to be disengaged from the female buckle structure 200.

[0043] See attached Figure 1 To Attachment Figure 5 The arc-shaped guide surface 410 is provided with a groove 412. The provision of the groove 412 can prevent the protrusion 204 from interfering with the male buckle structure 400 when the buckle head buckle 403 wall where the transverse groove 411 is located is pushed by manpower, thereby enabling the male buckle structure 400 to be smoothly disengaged from the female buckle structure 200.

[0044] Embodiment 8:

[0045] This embodiment is a further limitation of the buckle buckle 403 based on the sixth embodiment.

[0046] See attached Figure 1 To Attachment Figure 5 Three transverse grooves 411 are evenly spaced on the side wall of the buckle buckle 403 away from the inner concave surface 407 of the middle buckle 402. The transverse grooves 411 can be pushed by human power to increase the contact area between the human hand and the buckle buckle 402 when the male buckle structure 400 is disengaged from the female buckle structure 200, thereby increasing the friction between the two, making it more convenient for the male buckle structure 400 to be disengaged from the female buckle structure 200.

[0047] The arc-shaped guide surface 410 is provided with a groove 412. The provision of the groove 412 can prevent the protrusion 204 from interfering with the male buckle structure 400 when the buckle head buckle 403 is manually pushed on the buckle head buckle 403 wall where the transverse groove 411 is located, thereby enabling the male buckle structure 400 to be smoothly disengaged from the female buckle structure 200.

[0048] Embodiment 9:

[0049] This embodiment further limits the male buckle structure based on any one of Embodiments 1-8.

[0050] See attached Figure 1 To Attachment Figure 5 An arc-shaped groove 206 is provided on the upper end surface of the female buckle slot 201, and a top-connecting protrusion 207 arranged along the bottom wall thereof is provided on the arc-shaped groove 206, and an inclined surface 208 is obliquely provided between the top-connecting protrusion 207 and the arc-shaped groove 206.

[0051] See attached Figure 5 To Attachment Figure 6, the lower end of the buckle head buckle 403 is provided with an arc surface 413. The buckle head buckle 403 including the arc surface 413 contacts the top contact protrusion 207 in the arc groove 206 to form a disengagement buckle structure. The disengagement webbing system can pass the European test standard EN397 for protective helmets. The EN397 test standard has requirements for webbing tension; the webbing system and the protective helmet need to be automatically separated and not damaged within the range of 150N-250N tension.

[0052] Embodiment 10:

[0053] This embodiment further limits the male buckle structure based on any one of Embodiments 1-8.

[0054] See attached Figure 1 To Attachment Figure 5 An arc-shaped groove 206 is provided on the upper end surface of the female buckle slot 201, and a top-connecting protrusion 207 arranged along the bottom wall thereof is provided on the arc-shaped groove 206, and an inclined surface 208 is obliquely provided between the top-connecting protrusion 207 and the arc-shaped groove 206.

[0055] See attached Figure 7 To Attachment Figure 8 The lower end surface of the buckle head buckle 403 is provided with an arc-shaped slot 414 that can cooperate with the top protrusion 207. The buckle head buckle containing the arc-shaped slot 414 contacts the top protrusion 207 in the arc-shaped groove 206 to form a non-detachable buckle structure. The non-detachable webbing system can pass the European test standard EN12492 for protective helmets. The requirements for webbing tension in the EN12492 test standard are: stretch to 30N, and then evenly stretch to 500N within 30s for 120s, and the webbing system will not be detached or damaged.

Claims

1. A helmet assembly with a detachable webbing, comprising a helmet body, characterized in that: A female buckle structure is arranged on the inner wall of the cap body; the webbing assembly includes a male buckle structure that can be snap-fitted with the female buckle structure; a female buckle slot is provided on the female buckle structure, the male buckle structure includes a buckle body and a middle buckle head arranged on the buckle body, the buckle body is provided with a plurality of side buckles, which are located on both sides of the middle buckle head, the middle buckle head is provided with a raised buckle head buckle, and the middle buckle head can pass through the female buckle slot so that the buckle head buckle abuts against its end face.

2. A helmet assembly with a detachable webbing according to claim 1, characterized in that: An inner concave surface is arranged on the middle buckle head, so that a high and low step structure is formed at the connection between the buckle body and the middle buckle head, and the side buckles are higher than the inner concave surface on the same side.

3. A helmet assembly with a detachable webbing according to claim 2, characterized in that: A protrusion is provided on the wall of one side of the female buckle slot close to the cap body, a guide inclined surface is provided on the protrusion, and an arc-shaped guide sliding surface inclined toward the back is provided at the end of the buckle head buckle.

4. A helmet assembly with a detachable webbing according to claim 3, characterized in that: The arc-shaped guide sliding surface is provided with grooves.

5. A helmet assembly with a detachable webbing according to any one of claims 1 to 4, characterized in that: An arc-shaped groove is arranged on the end surface of the female buckle slot, a top-connecting protrusion is arranged along the bottom wall of the arc-shaped groove, and an inclined surface is obliquely arranged between the top-connecting protrusion and the arc-shaped groove.

6. A helmet assembly with a detachable webbing according to claim 5, characterized in that: The lower end of the buckle head buckle is provided with an arc surface.

7. A helmet assembly with a detachable webbing according to claim 5, characterized in that: An arc-shaped groove which can cooperate with the top-connecting protrusion is arranged in the lower side end surface of the buckle head buckle.

8. The helmet assembly with detachable webbing according to claim 1, characterized in that: The webbing assembly also includes two groups of cross-connected first webbings, the first end of the first webbing is connected to the male buckle structure, the second end of the first webbing is provided with a connecting piece 1, the connecting pieces 1 on both sides are respectively provided with a second webbing and a third webbing, the second webbing is provided with a female buckle connecting piece, the third webbing is provided with a male buckle connecting piece, and the female buckle connecting piece and the male buckle connecting piece can be snap-connected and fixed.

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