CN215837313U

CN215837313U - Hoop for safety helmet

Info

Publication number: CN215837313U
Application number: CN202122199134.9U
Authority: CN
Inventors: 钟树广
Original assignee: Liulihe Protection Technology Dalian Co ltd
Current assignee: Liulihe Protection Technology Dalian Co ltd
Priority date: 2021-01-13
Filing date: 2021-09-10
Publication date: 2022-02-18
Anticipated expiration: 2031-09-10

Abstract

The application relates to the field of safety helmets, in particular to a helmet hoop for a safety helmet, which has the technical scheme that: the clamp comprises a clamp belt, wherein a first connecting belt and a second connecting belt are respectively arranged at two ends of the clamp belt, and a plurality of clamping strips vertical to the extending direction of the first connecting belt are arranged on one surface of the first connecting belt; a first clamping block is arranged on the second connecting belt; one end of the first clamping block, which is close to the strap, is provided with a clamping piece which can press the first connecting belt on the second connecting belt, and the end part of the clamping piece can be clamped between the adjacent clamping strips; the size and the shape of the helmet hoop can be more stably kept well adjusted in the wearing process of the helmet, so that the helmet hoop is more reliably attached to the head to improve the safety and the reliability of the helmet.

Description

Hoop for safety helmet

Technical Field

The application relates to the field of safety helmets, in particular to a helmet hoop for a safety helmet.

Background

The safety helmet is a helmet which has a protective effect on injury of the head of a person caused by falling objects and other specific factors; the safety performance of the safety helmet is directly influenced by the design of the helmet hoop on the safety helmet.

The invention discloses a hat hoop for promoting the safety helmet to wear normally, which is disclosed in the Chinese patent with the publication number of CN108835754A, and comprises a hat hoop body, a telescopic section, a tensioning rope and a chin strap; the cap hoop body is made of elastic materials, the fastening section at the rear part of the cap hoop body is of a diamond mesh chain telescopic structure, and the elastic materials are adapted to be tightly attached to the head by the aid of recovery performance.

In view of the above-mentioned related art solutions, the inventors found that: because the fastening section at the rear part of the cap hoop body is of a diamond-shaped net chain telescopic structure, in the process of head movement of a worker, the head acts on the tensioning rope with corresponding force to drive the tensioning rope to drive the diamond-shaped net chain to unfold, a gap is further formed between the cap hoop and the head, and the wearing of the safety helmet is further unreliable.

SUMMERY OF THE UTILITY MODEL

In order to keep the size and the shape of the helmet hoop more stably adjusted in the wearing process of the helmet, so that the helmet hoop is more reliably attached to the head to improve the safety reliability of the helmet, the application provides the helmet hoop for the helmet.

The application provides a hat hoop for safety helmet adopts following technical scheme:

a helmet hoop for a safety helmet comprises a hoop band, wherein a first connecting band and a second connecting band are respectively arranged at two ends of the hoop band, and a plurality of clamping strips vertical to the extending direction of the first connecting band are arranged on one surface of the first connecting band; a first clamping block is arranged on the second connecting belt; one end that first chucking piece is close to the strap is provided with can compress tightly the card on the second connecting band with first connecting band, and the tip of card can the joint between adjacent joint strip.

Through adopting above-mentioned technical scheme, the card can compress tightly first connecting band on the one hand on the second connecting band, on the other hand, because the card joint is between adjacent joint strip, mutually supporting of card and joint strip can hinder and take place relative displacement and lead to the strap along extending direction each other between first connecting band and the second connecting band, the circular ring structure diameter size grow that first connecting band and second connecting band enclose, can hinder the end of first connecting band to the direction removal of keeping away from the strap on the second connecting band promptly, even when workman's head rocks in helmet inside like this, first connecting band, circular ring structure that second connecting band and strap enclose also can keep the shape and size of adjusting and keep constantly laminating with human head, the fail safe nature of safety helmet has been improved.

Preferably, a second connecting block is arranged on one side, close to the second connecting belt, of the first connecting block; a mounting shell with a hollow inner part is arranged on the second connecting belt, and a through hole for the first connecting belt to pass through is formed in the position, close to the second connecting belt, of the two ends of the mounting shell; the first clamping block can be embedded into the top of the mounting shell; a plurality of elastic insertion blocks are arranged on two sides of the second clamping block, insertion holes into which the elastic insertion blocks with holes are inserted are formed in two sides of the mounting shell, and the elastic insertion blocks can elastically deform towards the direction close to the inside of the mounting shell; the second chucking block can compress tightly first chucking block at the installation shell top.

Through adopting above-mentioned technical scheme, arrange first chucking piece in between second chucking piece and the installation shell top, later with the second chucking piece inside the installation shell to the direction that is close to the installation shell top remove, insert the spliced eye until elasticity grafting piece, this process elasticity grafting piece takes place mutual extrusion and takes place elastic deformation to the direction of keeping away from each other with the lateral wall of installation shell, it is inside at the spliced eye to slip in and joint fast until elasticity grafting, and then hinder second chucking piece and first chucking piece to drop from the installation shell.

Preferably, one end of the card close to the strap is vertical to the second connecting belt; the surface of the clamping strip close to the strap is vertical to the first connecting belt.

Through adopting above-mentioned technical scheme, when the surface of first connecting band and the surface laminating of second connecting band, card and second connecting band vertically surface butt are at joint strip and second connecting band vertically surface, and card performance is laminated with corresponding joint strip surface completely promptly, can make card and joint strip bear bigger load along first connecting band extending direction at the in-process of laminating like this, and then make the reciprocal anchorage relation of first connecting band and second connecting band more stable.

Preferably, one side of the second clamping block, which is close to the first clamping block, is provided with a connecting column; the surface of the first clamping block, which is close to the second clamping block, is provided with a connecting hole for inserting the connecting column; first chucking piece can take place to the elastic deformation who is close to the spliced pole direction, and the card is close to the one end of strap and the distance between the second connecting band can be along with the recessed grow of local elasticity of first chucking piece.

By adopting the technical scheme, when the position of the first connecting belt needs to be adjusted so that the diameter of a circular annular structure formed by the first connecting belt, the second connecting belt and the belt is enlarged, the first clamping block is pressed so that the middle part of the first clamping block is sunken towards the direction close to the second connecting belt, the peripheral part of the first clamping block is warped upwards, the card is then tilted towards the direction far away from the second connecting belt, the distance between the end part of the card and the second connecting belt is enlarged further until the card is separated from the clamping relation between the clamping bars, at the moment, the first connecting belt can move towards the direction far away from the belt in the mounting shell until the diameter of the circular annular structure formed by the first connecting belt, the second connecting belt and the belt meets the preset use size, the first clamping block is loosened so as to relieve the pressing of the first clamping block, and the elastic deformation of the first clamping block is eliminated and is restored to the natural state, the card restores to the initial position to the direction that is close to the second connecting band, and the card is blocked between two adjacent joint strips again, and first connecting band is fixed again on the second connecting band.

Preferably, the surface of the second connecting band provided with the first clamping block is provided with a plurality of L-shaped limit buckles in pairs, and two limit buckles in a pair are respectively arranged close to two sides of the second connecting band; one end of the limiting buckle far away from the second connecting belt is parallel to the surface of the second connecting belt, a gap exists between the limiting buckle and the second connecting belt, the gap is equal to the thickness of the first connecting belt, and the second connecting belt can be inserted between the limiting buckle and the second connecting belt.

Through adopting above-mentioned technical scheme, after first connecting band passed the installation shell, insert first connecting band in the space that forms between spacing knot and the second connecting band, first connecting band and then the joint is in a plurality of spacing knots simultaneously, the end that can hinder first connecting band like this removes at will on the second connecting band, and then make first connecting band laminate more steadily on the second connecting band, the inside protuberance that produces in the use of safety helmet has been reduced, and then the travelling comfort and the security of safety helmet have been improved.

Preferably, the surface of the belt is provided with sweat absorbing belts, and the sweat absorbing belts extend along the extending direction of the belt and cover the surface of the belt; the sweat absorbing belt is made of porous material.

Through adopting above-mentioned technical scheme, sweat-absorbing belt sets up between strap and head, has the vapor that the head distributed between head and the strap, and these vapor can be absorbed by sweat-absorbing belt.

Preferably, the sweat absorbing belt is provided with a plurality of mounting holes, and the plurality of mounting holes are respectively formed close to two sides of the sweat absorbing belt; the surface of the strap far away from the sweat absorbing belt is provided with a plurality of L-shaped mounting buckles, the mounting buckles are respectively arranged close to the two sides of the strap, and the mounting buckle openings respectively positioned at the two sides of the strap are oppositely arranged; the mounting hole of the sweat absorbing belt can be sleeved on the mounting buckle.

Through adopting above-mentioned technical scheme, when needs will absorb sweat the area to fix on the hoop area, make the mounting hole align to the installation and detain and make the pore wall joint of mounting hole at the opening part that the installation was detained, because the installation is detained and is close to the both sides setting of strap, and then make the both sides homoenergetic of absorbing sweat the area fix on the both sides of strap, the fixed of absorbing sweat area is more stable.

Preferably, the surface of the strap far away from the sweat absorbing belt is provided with a plurality of horizontal spacing limiting parts, the cross section of each horizontal spacing limiting part perpendicular to the surface of the strap is trapezoidal, and the horizontal spacing limiting parts can elastically deform towards the direction close to the surface of the strap.

By adopting the technical scheme, the horizontal distance limiting part can enable a horizontal distance to exist between the outer peripheral surface of the circular annular structure enclosed by the first connecting belt, the second connecting belt and the strap and the inner surface of the helmet shell; when the safety helmet casing pressurized takes place deformation sunken, the sunken department of safety helmet takes the first spacing portion of extrusion horizontal interval so that the spacing portion of horizontal interval takes place to the elastic deformation who is close to strap surface direction, and then has hindered the sunken department of safety helmet and directly acted on pressure to the head and lead to the head directly to receive the striking oppression, and then played the cushioning effect.

Preferably, the surface of the strap is provided with a plurality of heat dissipation holes penetrating through the strap, and the heat dissipation holes are waist-shaped holes and extend along the extension direction of the strap.

Through adopting above-mentioned technical scheme, the louvre can make the heat and the steam that the head distributed out discharge from between head and the strap, has reduced heat and steam and has stranded between head and strap and can't discharge, then plays the effect of heat dissipation cooling.

In summary, the present application has the following technical effects:

1. by arranging the strap, the first connecting belt, the second connecting belt, the clamping strip and the clamping sheet, even if the head of a worker shakes in the safety helmet, the circular annular structure formed by the first connecting belt, the second connecting belt and the strap can keep the adjusted shape and size and can be constantly attached to the head of a human body, so that the safety reliability of the safety helmet is improved;

2. the horizontal spacing limiting part is arranged, so that the situation that the head is directly impacted and pressed due to the fact that the pressure is directly acted on the head by the concave part of the safety helmet is prevented, and a buffering effect is achieved;

3. elastic deformation to being close to the spliced pole direction can take place through making first chucking piece, and then the distance that makes the card be close to between the one end of strap and the second connecting band can be along with the recessed grow of local elasticity of first chucking piece, like this when the first connecting band of needs increase, during circular ring structure diameter that second connecting band and strap enclose, because the interval between card and the second connecting band enlarges and makes first connecting band can remove on the second connecting band, with the convenience to the adjustment of cap hoop size.

Drawings

FIG. 1 is a view showing the configuration of a cap band without a sweat band attached thereto in the embodiment of the present application;

FIG. 2 is a block diagram of the clamping assembly in an embodiment of the present application;

FIG. 3 is an exploded view of the clamping assembly in an embodiment of the subject application;

FIG. 4 is an exploded view of the clamping assembly in an alternative perspective in an embodiment of the subject application;

fig. 5 is a schematic structural view at a second chuck block in the embodiment of the present application;

FIG. 6 is a view showing the structure of a sweat band in the embodiment of the present application;

fig. 7 is an overall structural view of a cap band in the embodiment of the present application.

In the figure, 1, a band; 11. installing a buckle; 12. a horizontal spacing limiting part; 13. heat dissipation holes; 2. a first connecting belt; 21. a clamping strip; 3. a second connecting band; 31. a limit buckle; 4. a clamping assembly; 41. a first clamping block; 411. a card; 412. connecting holes; 413. a limiting block; 414. a limiting strip; 42. a second clamping block; 421. an elastic plug-in block; 422. connecting columns; 423. a limiting hole; 424. a lap plate; 425. a through hole is formed; 43. mounting a shell; 431. a hole is perforated; 432. inserting holes; 5. a sweat-absorbing band; 51. an extension portion; 52. and (7) installing holes.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1, the present application provides a band for a safety helmet, including a band 1, and a first connecting band 2 and a second connecting band 3 respectively disposed at both sides of the band 1, wherein when the band is in an unfolded state, the first connecting band 2, the second connecting band 3, and the band 1 are coplanar; one end of the first connecting belt 2, which is far away from the belt clamp 1, can be bent and extended towards one end of the second connecting belt 3, which is far away from the belt clamp 1, and the first connecting belt 2 can be attached to the second connecting belt 3, so that the first connecting belt 2, the second connecting belt 3 and the belt clamp 1 form a circular structure together; the second connecting belt 3 is provided with a clamping assembly 4 which can fix the first connecting belt 2 on the second connecting belt 3; when first connecting band 2 needs to be fixed on second connecting band 3, adjust chucking subassembly 4 so that first connecting band 2 can pass chucking subassembly 4 and make first connecting band 2 keep away from the one end of strap 1 from second connecting band 3 and move to the direction that is close to strap 1, until first connecting band 2, second connecting band 3 and strap 1 three enclose into circular structure suitable for user's head size jointly, chucking subassembly 4 chucking first connecting band 2 is in order to hinder the end of first connecting band 2 to move to the direction of keeping away from strap 1 on second connecting band 3, even like this when workman's head rocks in helmet inside, the circular ring structure that first connecting band 2, second connecting band 3 and strap 1 enclose also can keep the shape and size that adjust and keep constantly laminating with human head, the fail-safe nature of helmet has been improved.

Referring to fig. 1 and 2, a plurality of clamping strips 21 are fixed on one side surface of the first connecting belt 2, the extending direction of the clamping strips 21 is perpendicular to the extending direction of the first connecting belt 2, and the plurality of clamping strips 21 are uniformly distributed along the extending direction of the first connecting belt 2; the clamping assembly 4 comprises a hollow mounting shell 43 fixed on the second connecting band 3, and the mounting shell 43 and the clamping bar 21 are arranged on the same side of the strap 1; both ends of the mounting shell 43 are provided with a threading hole 431 for the first connecting belt 2 to pass through, and the distance between the threading hole 431 and the first connecting belt 2 is greater than the thickness of the first connecting belt 2; referring to fig. 3 again, a first clamping block 41 and a second clamping block 42 are arranged inside the mounting shell 43, the first clamping block 41 is arranged near the top of the mounting shell 43 and can be embedded into the top of the mounting shell 43, and the second clamping block 42 is embedded inside the second connecting band 3; the first clamping block 41 is mounted on the second clamping block 42; a card 411 is formed at one end of the first clamping block 41 close to the belt band 1, the card 411 inclines to the surface close to the second connecting belt 3 along the direction from far to close to the belt band 1, and the surface of one end of the card 411 close to the belt band 1 is vertical to the surface of the second connecting belt 3; the surface of the clamping strip 21 close to the belt clamp 1 is vertical to the surface of the first connecting belt 2, and a gap exists between the end part of the card 411 and the surface of the second connecting belt 3, and the gap is smaller than the total thickness of the clamping strip 21 and the first connecting belt 2; the surface of the clamping strip 21 facing away from the band 1 slopes towards the first connecting strip 2 in the direction from close to far from the band 1.

When one end of the first connecting band 2, which is far away from the band 1, moves between the mounting shell 43 and the second connecting band 3 to be close to the band 1, the surface of the clamping strip 21, which is obliquely arranged, and the end of the card 411 slide relatively, because the gap between the end of the card 411 and the surface of the second connecting band 3 is smaller than the total thickness of the clamping strip 21 and the first connecting band 2, the clamping strip 21 then extrudes the card 411 to enable the card 411 to deform to be far away from the second connecting band 3; in the process, the diameter of the circular structure formed by the first connecting belt 2, the second connecting belt 3 and the strap 1 in a surrounding mode is gradually reduced, when the diameter is adjusted to be proper in size, the first connecting belt 2 stops moving, at the moment, the elastic deformation of the card 411 disappears, the end portion of the card 411 is abutted to the surface, perpendicular to the first connecting belt 2, of each clamping strip 21, and the card 411 is further clamped between two adjacent clamping strips 21; if the first connecting band 2 is pulled in a direction away from the band 1, the first connecting band 2 is difficult to move due to the clamping of the card 411, and the first connecting band 2 is fixed on the second connecting band 3.

Referring to fig. 3 and 4, two elastic insertion blocks 421 are respectively fixed to two sides of the second clamping block 42, and the elastic insertion blocks 421 have a quarter-circle structure; the axial direction of the elastic insertion block 421 is parallel to the extending direction of the second connecting band 3, and the elastic insertion block 421 can be elastically deformed in the direction close to the second connecting band 3; two insertion holes 432 through which the elastic insertion blocks 421 penetrate are respectively formed in the shell walls on the two sides of the mounting shell 43, the hole wall of the insertion hole 432 close to the second connecting band 3 is parallel to the surface of the second connecting band 3, and the surface of the elastic insertion block 421 close to the second connecting band 3 can be lapped on the hole wall of the insertion hole 432 close to the second connecting band 3; referring to fig. 5 again, the second clamping block 42 is fixed with an overlapping plate 424 located below the first clamping block 41, a gap exists between the overlapping plate 424 and the second clamping block 42 and forms a belt passing hole 425 for the first connecting belt 2 to pass through, and the belt passing hole 425 is communicated with a belt passing hole 431; a connecting column 422 is fixed on the surface of the bridging plate 424 close to the first clamping block 41, and the connecting column 422 extends towards the direction close to the first clamping block 41; the lower surface of the first clamping block 41 is provided with a connecting hole 412 matched with the connecting column 422, and the connecting column 422 can be inserted into the connecting hole 412; a limiting hole 423 penetrating through the connecting column 422 is radially formed in the connecting column 422 along the connecting column 422, and a limiting block 413 which is matched with the limiting hole 423 and can be inserted into the limiting hole 423 is fixed on the hole wall of the connecting hole 412; limiting strips 414 are fixed on two sides of the first clamping block 41, and the surfaces of the limiting strips 414 far away from the second connecting band 3 can be attached to the inner surface of the top of the mounting shell 43.

Referring to fig. 1 again, when the first clamping block 41 and the second clamping block 42 need to be installed, the connecting column 422 is inserted into the connecting hole 412, and the limiting block 413 is inserted into the limiting hole 423 at the same time, so that the first clamping block 41 and the second clamping block 42 are connected; then, the assembled first clamping block 41 and the assembled second clamping block 42 move in the mounting shell 43 toward the direction close to the top of the mounting shell 43 until the elastic insertion block 421 is inserted into the insertion hole 432, in the process, the elastic insertion block 421 and the side wall of the mounting shell 43 are mutually extruded and elastically deformed in the direction away from each other, at this time, the surface of the elastic insertion block 421 close to the second connecting band 3 is overlapped on the hole wall of the insertion hole 432 close to the second connecting band 3, and the second clamping block 42 is prevented from falling off from the mounting shell 43; in addition, the stopper 414 is also attached to the inner surface of the top of the mounting case 43, and can prevent the first connecting band 2 from being separated from the top of the mounting case 43 in a direction away from the second connecting band 3.

Further, referring to fig. 3 and 4, after the first clamping block 41 and the second clamping block 42 are connected, the surface of the first clamping block 41 close to the second connecting band 3 and the surface of the card 411 close to the second connecting band 3 are overlapped on the overlapping plate 424, and an arch gap exists between the card 411 and the surface of the overlapping plate 424; when the first clamping block 41 is pressed away from the surface of the second connecting band 3, the first clamping block 41 is elastically deformed in the direction approaching the strap 424, that is, the middle portion of the first clamping block 41 is recessed in the direction approaching the strap 424, and at this time, the end portion of the clamping piece 411 close to the band 1 is tilted away from the second connecting band 3, so that the distance between the clamping piece 411 and the second connecting band 3 is increased; referring to fig. 1 again, the first connecting band 2 passes through the inside of the housing, that is, the first connecting band 2 passes through the strap passing hole 425 between the strap passing hole 431 and the second clamping block 42 and the strap 424, when the diameter of the circular structure formed by the first connecting band 2, the second connecting band 3 and the strap 1 needs to be increased, the first connecting band 2 needs to be pulled and pulled on the second connecting band 3 in a direction away from the strap 1, at this time, the first clamping block 41 needs to be pressed to increase the distance between the card 411 and the second connecting band 3, so that the card 411 is separated from the clamping connection with the clamping bar 21, and the first connecting band 2 can move freely between the first clamping block 41 and the second clamping block 42; after the diameter adjustment is completed, the pressing of the first clamping block 41 is released, so that the card 411 is restored to the abutment with the card holding bar 21.

Referring to fig. 1 and 2, the second connecting band 3 is provided with a plurality of position-limiting buckles 31, and the position-limiting buckles 31 are arranged on one side of the mounting shell 43 close to the belt 1; the plurality of limit buttons 31 are arranged in pairs, and each pair of limit buttons 31 are uniformly distributed along the extending direction of the second connecting belt 3; the two limit buckles 31 in each pair are oppositely arranged and respectively arranged at two sides of the second connecting belt 3; the limit buckle 31 is of an L-shaped structure, one side of the limit buckle 31 is perpendicular to the second connecting band 3 and is fixedly connected with the second connecting band 3, the other side of the limit buckle 31 is parallel to the second connecting band 3 and has a gap with the second connecting band, the gap is equal to the thickness of the first connecting band 2, and the sides of the two limit buckles 31 in each pair, which are parallel to the second connecting band 3, extend in the direction of approaching each other; after first connecting band 2 passed installation shell 43, insert first connecting band 2 in the space that forms between spacing knot 31 and the second connecting band 3, first connecting band 2 and then the joint is in a plurality of spacing knots 31 simultaneously, the end that can hinder first connecting band 2 like this removes at will on second connecting band 3, and then make first connecting band 2 laminate on second connecting band 3 more stably, the inside arch that produces in the use of safety helmet has been reduced, and then the travelling comfort and the security of safety helmet have been improved.

Referring to fig. 6 and 7, the surface of the cuff 1 far away from the mounting shell 43 is provided with a sweat absorbing belt 5 covering the surface of the cuff 1, and the sweat absorbing belt 5 is made of porous material; a plurality of extending parts 51 are arranged at two sides of the sweat absorbing belt 5, and mounting holes 52 are arranged on the extending parts 51; a plurality of mounting buckles 11 are formed on the surface of the strap 1 close to the mounting shell 43, the mounting buckles 11 are in L-shaped structures, one side of each mounting buckle 11 is parallel to the surface of the strap 1, and a gap is reserved between each mounting buckle 11 and the surface of the strap 1; the mounting holes 52 are respectively arranged close to two sides of the strap 1, and the openings of the mounting buckles 11 close to two sides of the strap 1 are opposite; when the sweat absorbing belt 5 needs to be processed and fixed on the surface of the belt band 1, the extension part 51 is folded to the surface of the belt band 1 close to the mounting shell 43, and then the extension part 51 is hung on the mounting buckle 11 through the mounting hole 52.

Referring to fig. 1 and 3, six horizontal spacing limiting parts 12 are fixed on the surface of the belt 1 close to the mounting shell 43 in pairs, and each pair of the horizontal spacing limiting parts 12 are uniformly distributed along the extending direction of the belt 1; the section of the horizontal spacing limiting part 12 vertical to the surface of the belt 1 is trapezoidal, and the horizontal spacing limiting part 12 can elastically deform towards the direction close to the surface of the belt 1; when first connecting band 2, behind second connecting band 3 and the strap 1 encloses into circular structure, there is the distance between 1 surface of strap and the safety helmet cap shell in horizontal spacing portion 12, when the thing striking safety helmet falls, local sunken can take place for the safety helmet, the spacing portion 12 of the sunken department extrusion horizontal spacing of safety helmet this moment and then make the spacing portion 12 of horizontal spacing take place elastic deformation to the direction that is close to strap 1, horizontal spacing portion 12 can separate safety helmet and strap 1 and head when the safety helmet receives the striking, in order to reduce the safety helmet pressurized and directly extrude the possibility of head, play the effect of buffering promptly.

Referring to fig. 1 and 3, a plurality of heat dissipation holes 13 are formed in the surface of the band 1, and the heat dissipation holes 13 are waist-shaped holes and extend along the extending direction of the band 1; the heat that the head distributes can be discharged from between strap 1 and the head through louvre 13, and then plays the effect of heat dissipation cooling.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. A safety helmet hoop is characterized in that: the strap comprises a strap (1), wherein a first connecting belt (2) and a second connecting belt (3) are respectively arranged at two ends of the strap (1), and a plurality of clamping strips (21) vertical to the extending direction of the first connecting belt (2) are arranged on one surface of the first connecting belt (2); a first clamping block (41) is arranged on the second connecting belt (3); one end of the first clamping block (41) close to the strap (1) is provided with a card (411) capable of pressing the first connecting belt (2) on the second connecting belt (3), and the end part of the card (411) can be clamped between the adjacent clamping strips (21).

2. The band for a safety helmet according to claim 1, wherein: a second connecting block is arranged on one side, close to the second connecting belt (3), of the first connecting block; a mounting shell (43) with a hollow inner part is arranged on the second connecting belt (3), and a through hole (431) for the first connecting belt (2) to pass through is formed in the position, close to the second connecting belt (3), of the two ends of the mounting shell (43); the first clamping block (41) can be embedded into the top of the mounting shell (43); a plurality of elastic insertion blocks (421) are arranged on two sides of the second clamping block (42), insertion holes (432) into which the elastic insertion blocks (421) with holes are inserted are formed in two sides of the mounting shell (43), and the elastic insertion blocks (421) can elastically deform towards the direction close to the inside of the mounting shell (43); the second clamping block (42) can press the first clamping block (41) on the top of the mounting shell (43).

3. The band for a safety helmet according to claim 1, wherein: one end of the card (411) close to the strap (1) is vertical to the second connecting belt (3); the surface of the clamping strip (21) close to the strap (1) is vertical to the first connecting belt (2).

4. A band for a safety helmet according to claim 2, wherein: one side of the second clamping block (42) close to the first clamping block (41) is provided with a connecting column (422); the surface of the first clamping block (41) close to the second clamping block (42) is provided with a connecting hole (412) for inserting the connecting column (422); first chucking piece (41) can take place to the elastic deformation who is close to spliced pole (422) direction, and the card (411) are close to the one end of strap (1) and the distance between second connecting band (3) can be along with the concave grow of local elasticity of first chucking piece (41).

5. The band for a safety helmet according to claim 1, wherein: the surface of the second connecting belt (3) provided with the first clamping block (41) is provided with a plurality of L-shaped limit buckles (31) in pairs, and two limit buckles (31) in a pair are respectively arranged close to two sides of the second connecting belt (3); one end of the limiting buckle (31) far away from the second connecting band (3) is parallel to the surface of the second connecting band (3), a gap exists between the limiting buckle (31) and the second connecting band (3), the gap is equal to the thickness of the first connecting band (2), and the second connecting band (3) can be inserted between the limiting buckle (31) and the second connecting band (3).

6. The band for a safety helmet according to claim 4, wherein: the surface of the strap (1) is provided with a sweat absorbing belt (5), and the sweat absorbing belt (5) extends along the extension direction of the strap (1) and covers the surface of the strap (1); the sweat absorbing belt (5) is made of porous material (5).

7. The band for a safety helmet according to claim 5, wherein: the sweat absorbing belt (5) is provided with a plurality of mounting holes (52), and the plurality of mounting holes (52) are respectively formed near the two sides of the sweat absorbing belt (5); the surface of the strap (1) far away from the sweat absorbing belt (5) is provided with a plurality of L-shaped mounting buckles (11), the mounting buckles (11) are respectively arranged close to the two sides of the strap (1), and the openings of the mounting buckles (11) respectively positioned on the two sides of the strap (1) are oppositely arranged; the mounting hole (52) of the sweat absorbing belt (5) can be sleeved on the mounting buckle (11).

8. The headgear strap of claim 6, wherein: the surface of the strap (1) far away from the sweat absorbing belt (5) is provided with a plurality of horizontal spacing limiting parts (12), the cross section of each horizontal spacing limiting part (12) perpendicular to the surface of the strap (1) is trapezoidal, and the horizontal spacing limiting parts (12) can elastically deform in the direction close to the surface of the strap (1).

9. The band for a safety helmet according to claim 7, wherein: a plurality of heat dissipation holes (13) penetrating through the strap (1) are formed in the surface of the strap (1), and the heat dissipation holes (13) are waist-shaped holes and extend along the extending direction of the strap (1).