CN212877834U - Helmet convenient to change goggles - Google Patents

Abstract

The utility model discloses a helmet convenient for replacing goggles, the goggles is provided with two ear sheets, the ear sheets are provided with assembly holes, two rotating shafts are arranged on a helmet body, the ear sheets are buckled on the rotating shafts to be rotatably matched, the end parts of the rotating shafts are provided with locking pieces used for preventing the ear sheets from being separated, each locking piece comprises a first locking end and a second locking end, the cross section of the first locking end is circular, the end part of the rotating shaft is fixed by thread matching, the peripheral edge of the first locking end is provided with an annular convex ring, the annular convex ring is provided with a plurality of longitudinal clamping grooves, the second locking end is provided with a cover cavity, the cover is arranged outside the first locking end, an elastic piece is arranged between the bottom wall of the cover cavity and the top end of the first locking end, a plurality of clamping strips which are distributed at equal intervals are arranged on the inner wall of the cover cavity, the width of the clamping grooves is larger than the width of the cross section, the second lock end will drive the first lock end to rotate. After improvement, the goggles are convenient to replace and maintain, the efficiency is improved, and the service life of the helmet is prolonged.

Description

Helmet convenient to change goggles

Technical Field

The utility model relates to a helmet technical field, more specifically say, it relates to a helmet convenient to change goggles.

Background

The helmet is a harness for protecting the head and is an indispensable tool in people's traffic. In order to reduce the weight of the helmet, the goggles are mostly made of resin materials. However, during use, the visor is the most vulnerable part. The safety goggles in the existing helmet are fixedly installed, if the safety goggles are damaged, the safety goggles are troublesome to disassemble, the safety goggles are not beneficial to replacement or maintenance, and the requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a helmet convenient to change goggles.

In order to achieve the above purpose, the utility model provides a following technical scheme: a helmet convenient for replacing goggles comprises a helmet body, a chin guard and goggles, wherein the goggles are provided with two lugs, assembly holes are formed in the lugs, two rotating shafts are arranged on the helmet body, the lugs are buckled on the rotating shafts in a rotating fit mode, a locking piece used for preventing the lugs from being separated is arranged at the end portion of the rotating shafts, the locking piece comprises a first locking end and a second locking end, the first locking end is circular in cross section, the end portion of the rotating shafts is fixed through threaded fit, an annular convex ring is arranged on the outer periphery of the first locking end, a plurality of longitudinal clamping grooves are formed in the annular convex ring, the second locking end is provided with a cover cavity, the cover is arranged outside the first locking end, an elastic piece is arranged between the bottom wall of the cover cavity and the top end of the first locking end, a plurality of clamping strips which are distributed at equal intervals are arranged on the inner wall of the cover cavity, the width of each clamping groove is larger, the elastic piece is in a contraction state, the clamping strip moves into the clamping groove, and then the locking end II is rotated and can drive the locking end I to rotate.

The utility model discloses further set up to: the position that corresponds on the helmet body and protects the piece of bus is equipped with the ring channel, protect the piece of bus and be located ring channel sliding fit, be equipped with the extension spring between the one end of protecting the piece of bus and the diapire of ring channel, the other end is located the opening part of ring channel, is equipped with the lock piece, the lock piece is last to have a knot mouth, the opposite side that the helmet body corresponds the ring channel is equipped with the knot that joins in marriage the lock piece adaptation and colludes.

The utility model discloses further set up to: the elastic piece is made of rubber materials and comprises an upper circular piece, a lower circular piece and two supporting pieces located between the upper circular piece and the lower circular piece, the two supporting pieces are arranged in a C shape, and the arched parts of the two supporting pieces are connected in an abutting mode.

Through adopting above-mentioned technical scheme, the back is fixed by the latch fitting in the pivot of helmet body in the goggles cooperation, and the latch fitting has the function that prevents the maloperation, when pressing lock end two, lock end two-step method drives lock end one rotatory, can't dismantle, when changing, and is simple convenient again, and whole simple structure is compact, does benefit to and reduces manufacturing cost, can in time change the goggles of damage again, prolongs the life of helmet. Meanwhile, the bar protection piece can slide into the annular groove to be stored under the condition of not using, so that the protection of the bar protection piece is enhanced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

figure 2 is an exploded view of the lock.

1. A helmet body; 10. a rotating shaft; 11. an annular groove; 12. a tension spring; 13. buckling; 2. a baba protecting tablet; 20. Buckling sheets; 3. goggles; 30. a tab; 4. a lock; 40. locking the first end; 400. an annular convex ring; 401. A card slot; 41. a second lock end; 410. a housing cavity; 411. clamping the strip; 42. an elastic member; 420. loading a wafer; 421. A wafer is put down; 422. a support sheet.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 2.

A helmet convenient for replacing goggles 3 comprises a helmet body 1, a chin guard 2 and goggles 3, wherein the goggles 3 are provided with two lug plates 30, assembly holes are formed in the lug plates 30, two rotating shafts 10 are arranged on the helmet body 1, the lug plates 30 are buckled on the rotating shafts 10 in a rotating fit mode, a locking piece 4 used for preventing the lug plates 30 from being separated is arranged at the end portion of each rotating shaft 10, the locking piece 4 comprises a first locking end 40 and a second locking end 41, the first locking end 40 is used for fixing the end portion of the rotating shaft 10 in a threaded fit mode, an annular convex ring 400 is arranged on the outer periphery of the first locking end 40, a plurality of longitudinal clamping grooves 401 are formed in the annular convex ring 400, the second locking end 41 is provided with a cover cavity 410, the cover is arranged outside the first locking end 40, an elastic piece 42 is arranged between the bottom wall of the cover cavity 410 and the top end of the first locking end 40, a plurality of clamping strips 411 which are distributed at equal intervals are, the width of draw-in groove 401 is greater than the width of card strip 411 cross section, through pressing lock end one 40, elastic component 42 is the contraction state, card strip 411 moves to in the draw-in groove 401, and the rethread rotates lock end two 41, lock end two 41 can drive lock end one 40 and rotate. The position that corresponds on helmet body 1 and protects piece 2 of the bus is equipped with ring channel 11, protect piece 2 of the bus to be located ring channel 11 sliding fit, be equipped with extension spring 12 between the one end of protecting piece 2 and the diapire of ring channel 11, the other end is located the opening part of ring channel 11, is equipped with buckling piece 20, buckling piece 20 is last to have a knot mouth, helmet body 1 corresponds the opposite side of ring channel 11 and is equipped with the knot of joining in marriage 20 adaptations of buckling piece and collude 13. The elastic member 42 is made of rubber materials and comprises an upper disc 420, a lower disc 421 and support pieces 422 located between the upper disc 420 and the lower disc 421, the number of the support pieces 422 is two, the support pieces are arranged in a C shape, and the arched parts of the two support pieces 422 are connected in an abutting mode.

When goggles 3 need be changed, through pressing lock end two 41, make elastic component 42 be the shrink state, card strip 411 on lock end two 41 moves the position of lock end one 40 draw-in grooves 401, then continue to rotate lock end two 41, card strip 411 is contradicted with the inner wall of draw-in groove 401, play and drive a 40 pivoted effects of lock end, lock end one 40 is when rotating, can break away from pivot 10 through the screw thread rotation, play the effect of dismantling latch fitting 4, goggles 3 just can dismantle from helmet body 1 this moment, be convenient for maintain and change. An annular edge is further arranged at the opening of the cavity 410 of the first lock end 40, and when the second lock end 41 is not pressed, the annular edge is in interference fit with the lower end face of the first lock end 40.

The chin guard 2 is made of plastic material and has certain elasticity. Protect the position that chin piece 2 is used for protecting human head chin, consequently ring channel 11 sets up the side that corresponds human cheek at helmet body 1, under the condition that does not use, and chin piece 2 is accomodate in ring channel 11, when needing to use, through pulling lock piece 20, will protect chin piece 2 and shift out ring channel 11, and lock piece 20 is fixed with buckle 13 lock, and chin piece 2 then can be located the position that corresponds human chin, protects it. The structure arrangement can also facilitate the taking off and wearing of the helmet. It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (3)

1. The utility model provides a helmet convenient to change goggles, includes helmet body, protects piece and goggles, its characterized in that: the goggles are provided with two lugs, the lugs are provided with assembly holes, the helmet body is provided with two rotating shafts, the lugs are buckled on the rotating shafts and are in rotating fit, the end parts of the rotating shafts are provided with locking parts used for preventing the lugs from being separated, each locking part comprises a first locking end and a second locking end, the cross section of each locking end is circular, the end parts of the rotating shafts are fixed by thread fit, the peripheral edge of the first locking end is provided with an annular convex ring, a plurality of longitudinal clamping grooves are formed in the annular convex ring, each second locking end is provided with a cover cavity which is covered outside the first locking end, an elastic piece is arranged between the bottom wall of the cover cavity and the top end of the first locking end, a plurality of clamping strips which are distributed at equal intervals are arranged on the inner wall of the cover cavity, the width of each clamping groove is larger than the width of the cross section of each clamping strip, the elastic pieces are in a contraction state by pressing the first locking, the second lock end drives the first lock end to rotate.

2. A helmet for facilitating replacement of visors, according to claim 1, wherein: the position that corresponds on the helmet body and protects the piece of bus is equipped with the ring channel, protect the piece of bus and be located ring channel sliding fit, be equipped with the extension spring between the one end of protecting the piece of bus and the diapire of ring channel, the other end is located the opening part of ring channel, is equipped with the lock piece, the lock piece is last to have a knot mouth, the opposite side that the helmet body corresponds the ring channel is equipped with the knot that joins in marriage the lock piece adaptation and colludes.

3. A helmet for facilitating replacement of visors, according to claim 1, wherein: the elastic piece is made of rubber materials and comprises an upper circular piece, a lower circular piece and two supporting pieces located between the upper circular piece and the lower circular piece, the two supporting pieces are arranged in a C shape, and the arched parts of the two supporting pieces are connected in an abutting mode.

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