CN210276065U

CN210276065U - Safety helmet with transparent face mask

Info

Publication number: CN210276065U
Application number: CN201921364291.7U
Authority: CN
Inventors: 陈必虎
Original assignee: Jingshan Noan Plastic Co Ltd
Current assignee: Jingshan Noan Plastic Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-04-10
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a safety helmet with transparent face guard, the cap lining is that the rear portion is non-closed annular, is provided with expansion plate and connecting seat respectively at the lower rear portion of cap lining, first adjustment mechanism has seted up the spacing groove including locking lever and extension spring on the connecting seat, is provided with the ratchet on the expansion plate, and the expansion plate activity is planted at the spacing inslot of connecting seat, sets up guide way and the first through-hole that is linked together with the spacing groove on the connecting seat, the locking lever activity is worn to be put at first through-hole and guide way, is provided with the wedge cardboard on the locking lever that lies in the guide way, and this wedge cardboard card is put between the ratchet that lies in the spacing inslot, is provided with the handle on the locking lever that lies in the connecting seat outside, the utility model discloses the advantage is: the wearing requirements of users with different head shapes are met, the adjusting operation is very convenient and fast, time and labor are saved, and the wearing efficiency of the safety helmet is effectively improved.

Description

Safety helmet with transparent face mask

Technical Field

The utility model relates to a technical field of labor protection supplies, more specifically say so and relate to the technical field of safety helmet.

Background

The safety helmet is a round top hat worn for protecting the head, generally made of glass fiber reinforced plastic and other materials, and mainly used for preventing the head from being injured by impact objects. However, the following disadvantages exist in the conventional safety helmet: firstly, the conventional safety helmet is not provided with a transparent face mask, the face of a wearer of the safety helmet cannot be protected, certain dangerous production operation is not facilitated for the wearer, although a part of the conventional safety helmet is provided with a reversible face mask, the face masks of the safety helmets do not have a cleaning function, in the actual production operation process, the face masks are easily stained with dirt such as dust and the like, great inconvenience is brought to the normal production operation of the wearer, the face masks of the safety helmets cannot be detached or are difficult to detach, and when the wearer does not need the face masks, the face masks cannot be detached quickly; secondly, the tightness adjustment operation of the cap liner and the chin strap of the traditional safety cap is very inconvenient, time-consuming and labor-consuming, the working efficiency of operators is reduced, and the adjustable safety cap cannot well adapt to the wearing requirements of users with different head types.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a helmet with a face guard cleaning function for solving the above-mentioned insufficiency, and the face guard can be dismantled fast, simultaneously the elasticity degree of wearing can be adjusted, and adjust the very convenient safety helmet that has a transparent face guard of operation.

The utility model discloses a solve above-mentioned technical problem and the technical solution who adopts as follows:

a safety helmet with a transparent face guard comprises a helmet shell, a helmet liner, a first adjusting mechanism, a jacking belt, a lower jaw belt, a second adjusting mechanism, a transparent face guard, a nut and a cleaning mechanism, wherein the helmet liner is in a non-closed annular shape at the rear part, a telescopic plate and a connecting seat are respectively arranged at the lower rear part of the helmet liner, the first adjusting mechanism comprises a lock rod and a tension spring, a limiting groove is formed in the connecting seat, a ratchet is arranged on the telescopic plate, the telescopic plate is movably inserted in the limiting groove of the connecting seat, a guide groove and a first through hole which are communicated with the limiting groove are formed in the connecting seat, the lock rod is movably inserted in the first through hole and the guide groove, a wedge-shaped clamping plate is arranged on the lock rod in the guide groove and clamped between the ratchet rods in the limiting groove, a handle is arranged on the ratchet rod outside the connecting seat, and the tension spring is sleeved on the lock rod, one end part of a tension spring is fixed on the handle, the other end part of the tension spring is fixed on the connecting seat, the front part of the cap shell is provided with a cap brim, a screw rod is arranged on the cap brim, a support plate is arranged on the transparent mask, a second through hole is arranged on the support plate, the support plate is sleeved on the screw rod through the second through hole, the nut is screwed on the screw rod, the cleaning mechanism comprises an arc-shaped support, a rubber strip, an iron plate and a magnet, two side parts of the transparent mask are respectively provided with a vertical seat, a chute is arranged on the vertical seat, the iron plate is fixedly arranged at the vertical seat at the top of the chute, two end parts of the arc-shaped support are respectively provided with a slide block, the arc-shaped support is movably clamped in the chute of the vertical seat through the slide block, the magnet is fixedly arranged at the top of the slide block, the arc, the cross-section of rubber strip is the taper, and this rubber strip hugs closely on the surface of transparent face guard be provided with the arc that upwards extends on the cap liner, top support area fixed mounting is in the upper end of arc to be the cross arrangement be provided with the gag lever post on the inside wall of cap shell, be provided with the limiting plate on the gag lever post, be provided with the boss at the lateral part of cap liner, offered the groove of stepping down in the boss department of cap liner, do not offered the first draw-in groove corresponding with the gag lever post and with the corresponding second draw-in groove of limiting plate at the groove punishment of stepping down, the cap shell is put at first draw-in groove and second draw-in groove department through gag lever post and limiting plate card respectively, the chin strap is installed on the cap liner, second adjustment mechanism installs on the chin strap.

The second adjusting mechanism is composed of a support and a lock plate, positioning grooves are respectively formed in two side portions of the cap lining, one end portion of the lower jaw belt is fixed to the positioning groove in one side of the cap lining, the cross section of the support is U-shaped, a connecting groove is formed in the lower portion of the support, the longitudinal section of the lock plate is L-shaped, pivots are respectively arranged in the two side portions of the lock plate, the lock plate is rotatably and movably mounted on the support through the pivots, a pressing seat is arranged on the lock plate, locking teeth in rows are arranged on the pressing seat, the other end portion of the lower jaw belt penetrates through the space between the lock plate and the support and is fixed to the connecting groove of the support after penetrating through the positioning groove in the other side of the cap lining, and the locking teeth of the pressing seat are pressed on the lower jaw belt.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is:

1. after the safety helmet with the transparent mask is worn on the head of a user, the lower jaw belt is sleeved on the lower jaw of the user, then the locking plate of the second adjusting mechanism is rotated, and then the support is moved to adjust the length of the lower jaw belt, so that the tightness degree of the lower jaw belt can be adjusted; when needs tighten up the expansion plate, with its inwards promote can, when needs loosen the expansion plate, outside pulling handle makes the wedge cardboard withdraw from between the ratchet, can follow the expansion plate and pull out from the spacing inslot, and then the elasticity degree of adjustable cap liner, adapted to different head type users' needs of wearing well to adjust the operation ten minutes convenient and fast, labour saving and time saving has effectively improved the efficiency of wearing of safety helmet.

2. The transparent mask can protect the face of a wearer, when the transparent mask is stained with dirt such as dust, the arc-shaped support is pulled by hands to separate the magnet from the iron plate, then the arc-shaped support is moved up and down, and the dirt on the transparent mask is scraped by the rubber strip, so that the wearer can clean the transparent mask at any time and any place, the interference of the dirt on the normal operation of the wearer is prevented, the cleaning operation is very convenient and rapid, and meanwhile, the transparent mask has a good cleaning effect, and the dirt is completely removed; when the transparent mask is not needed to be used, the nut is detached from the screw rod, so that the transparent mask can be taken down from the brim, and the influence of the transparent mask on a wearer is avoided.

3. The top of the arc-shaped plate of the helmet liner is provided with the top supporting belt, so that the wearing comfort is improved, the top supporting belt has a good buffering effect, and the safety performance of the safety helmet is improved.

4. The cap shell is clamped at the first clamping groove and the second clamping groove of the cap liner through the limiting rod and the limiting plate, so that the cap liner and the cap shell are mounted and dismounted very conveniently and quickly, and the cap liner is very convenient to replace or clean and the like.

Drawings

FIG. 1 is a schematic structural view of the utility model with a chin strap omitted;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

FIG. 5 is an enlarged view of a portion of FIG. 2 at B;

FIG. 6 is an enlarged partial schematic view at C of FIG. 3;

FIG. 7 is an enlarged partial schematic view at D of FIG. 3;

FIG. 8 is a schematic right sectional view of the utility model of FIG. 1 without the top support strap and the transparent mask;

FIG. 9 is a schematic bottom view of the cap liner of FIG. 3;

FIG. 10 is an enlarged partial schematic view at E of FIG. 8;

FIG. 11 is an enlarged partial schematic view at F of FIG. 8;

FIG. 12 is a schematic right side view of the second adjustment mechanism of FIG. 11 after the locking plate has been rotated 90 degrees counterclockwise;

fig. 13 is an enlarged partial view of fig. 9 at G.

Detailed Description

As shown in fig. 1, 2 and 3, the safety helmet with the transparent mask comprises a helmet shell 1, a helmet liner 2, a first adjusting mechanism, a top supporting belt 3, a chin strap 4, a second adjusting mechanism, a transparent mask 5, a nut 6 and a cleaning mechanism, wherein the helmet liner 2 is in a non-closed ring shape at the rear part, an expansion plate 7 and a connecting seat 8 are respectively arranged at the lower rear part of the helmet liner 2, as shown in fig. 7 and 13, the first adjusting mechanism comprises a lock rod 9 and a tension spring 10, a limit groove 11 is arranged on the connecting seat 8, a ratchet 12 is arranged on the expansion plate 7, the expansion plate 7 is movably inserted in the limit groove 11 of the connecting seat 8, a guide groove 13 and a first through hole 14 which are communicated with the limit groove 11 are arranged on the connecting seat 8, the lock rod 9 is movably inserted in the first through hole 14 and the guide groove 13, a wedge-shaped clamping plate 15 is arranged on the lock rod 9 positioned in the guide groove 13, the wedge-shaped clamping plate 15 is clamped between the ratchets 12 in the limiting groove 11, a handle 16 is arranged on the lock rod 9 outside the connecting seat 8, the tension spring 10 is sleeved on the lock rod 9, one end part of the tension spring 10 is fixed on the handle 16, and the other end part is fixed on the connecting seat 8. A brim 17 is arranged at the front part of the cap shell 1, a screw 18 is arranged on the brim 17, a support plate 19 is arranged on the transparent mask 5, a second through hole 20 is arranged on the support plate 19, the support plate 19 is sleeved on the screw 18 through the second through hole 20, and the nut 6 is screwed on the screw 18. As shown in fig. 4, 5 and 6, the cleaning mechanism includes an arc support 21, a rubber strip 22, an iron plate 23 and a magnet 24, wherein two sides of the transparent mask 5 are respectively provided with a vertical seat 25, the vertical seat 25 is provided with a sliding slot 26, the iron plate 23 is fixedly mounted at the vertical seat 25 at the top of the sliding slot 26, two ends of the arc support 21 are respectively provided with a sliding block 27, the arc support 21 is movably clamped in the sliding slot 26 of the vertical seat 25 through the sliding block 27, the magnet 24 is fixedly mounted at the top of the sliding block 27, the arc support 21 is adsorbed on the iron plate 23 through the magnet 24, the rubber strip 22 is fixedly mounted at the inner side of the arc support 21, the cross section of the rubber strip 22 is in a conical shape, and the rubber strip 22 is closely attached to the surface of the transparent mask 5. Shown by fig. 8, 9 and 10 be provided with the arc 28 that upwards extends on the cap liner 2, the top holds in the palm 3 fixed mounting in the upper end of arc 28 to be the cross arrangement be provided with gag lever post 29 on the inside wall of cap shell 1, be provided with limiting plate 30 on gag lever post 29, be provided with boss 31 at the lateral part of cap liner 2, set up the groove of stepping down 32 in the boss 31 department of cap liner 2, set up respectively at this groove of stepping down 32 with the corresponding first draw-in groove 33 of gag lever post 29 and with the corresponding second draw-in groove 34 of limiting plate 30, cap shell 1 is put at first draw-in groove 33 and second draw-in groove 34 department through gag lever post 29 and limiting plate 30 card respectively, jaw 4 is installed on cap liner 2, second adjustment mechanism installs on jaw 4. As shown in fig. 11 and 12, the specific connection relationship between the chin strap 4 and the cap liner 2 and the specific structure of the second adjustment mechanism are as follows: the second adjusting mechanism is composed of a support 35 and a lock plate 36, positioning grooves 37 are respectively formed in two side portions of the cap liner 2, one end portion of the lower jaw belt 4 is fixed at the positioning groove 37 on one side of the cap liner 2, the cross section of the support 35 is U-shaped, a connecting groove 38 is formed in the lower portion of the support 35, the longitudinal section of the lock plate 36 is L-shaped, pivot shafts 39 are respectively arranged on the two side portions of the lock plate 36, the lock plate 36 is rotatably and movably mounted on the support 35 through the pivot shafts 39, a press seat 40 is arranged on the lock plate 36, locking teeth 41 in rows are arranged on the press seat 40, the other end portion of the lower jaw belt 4 penetrates through the space between the lock plate 36 and the support 35 and is fixed at the connecting groove 38 of the support 35 after penetrating through the positioning groove 37 on the other side of the cap liner 2, and the locking teeth 41 of the press seat 40 are pressed on the lower.

After the safety helmet with the transparent mask is worn on the head of a user, the lower jaw belt 4 is hooped on the lower jaw of the user, then the locking plate 36 of the second adjusting mechanism is rotated to the state shown in fig. 11 from the state shown in fig. 12, and then the support 35 is moved to adjust the length of the lower jaw belt 4 so as to adjust the tightness degree of the lower jaw belt 4; when the expansion plate 7 needs to be tightened, the expansion plate 7 is pushed inwards, when the expansion plate 7 needs to be loosened, the handle 16 is pulled outwards, the wedge-shaped clamping plate 15 is withdrawn from the ratchet 12, the expansion plate 7 can be pulled out from the limiting groove 11, and the tightness degree of the hat lining 2 can be adjusted to adapt to the wearing requirements of users with different head types. Can protect the face of wearer through transparent face guard 5, when being stained with spot such as dust on transparent face guard 5, pull arc support 21 with the hand, make magnet 24 and iron plate 23 separate, reciprocate arc support 21 afterwards, strike off the spot on transparent face guard 5 through rubber strip 22, can spray right amount clear water on transparent face guard 5 when necessary to improve clean effect. When the transparent face mask 5 is not needed, the nut 6 is detached from the screw 18, and the transparent face mask 5 can be removed from the brim 17.

Claims

1. Safety helmet with transparent face guard, its characterized in that: the helmet comprises a helmet shell, a helmet liner, a first adjusting mechanism, a jacking belt, a lower jaw belt, a second adjusting mechanism, a transparent mask, a nut and a cleaning mechanism, wherein the helmet liner is in a non-closed annular shape at the rear part, a telescopic plate and a connecting seat are respectively arranged at the lower rear part of the helmet liner, the first adjusting mechanism comprises a lock rod and a tension spring, a limiting groove is formed in the connecting seat, a ratchet is arranged on the telescopic plate, the telescopic plate is movably inserted in the limiting groove of the connecting seat, a guide groove and a first through hole which are communicated with the limiting groove are formed in the connecting seat, the lock rod is movably inserted in the first through hole and the guide groove, a wedge-shaped clamping plate is arranged on the lock rod in the guide groove and clamped between the ratchet in the limiting groove, a handle is arranged on the lock rod outside the connecting seat, the tension spring is sleeved on the lock rod, and one end part of the tension spring is fixed on the handle, the other end of the transparent mask is fixed on the connecting seat, the front part of the cap shell is provided with a cap edge, the cap edge is provided with a screw rod, the transparent mask is provided with a support plate, the support plate is provided with a second through hole, the support plate is sleeved on the screw rod through the second through hole, the nut is screwed on the screw rod, the cleaning mechanism comprises an arc-shaped support, a rubber strip, an iron plate and a magnet, two side parts of the transparent mask are respectively provided with a vertical seat, the vertical seat is provided with a chute, the iron plate is fixedly arranged at the vertical seat at the top of the chute, two end parts of the arc-shaped support are respectively provided with a slide block, the arc-shaped support is movably clamped in the chute of the vertical seat through the slide block, the magnet is fixedly arranged at the top of the slide block, the arc-shaped support is adsorbed on the iron plate through the magnet, the rubber, this rubber strip hugs closely on the surface of transparent face guard be provided with the arc that upwards extends on the cap liner, top support area fixed mounting is at the upper end of arc to be the cross arrangement be provided with the gag lever post on the inside wall of cap shell, be provided with the limiting plate on the gag lever post, be provided with the boss at the lateral part of cap liner, offered the groove of stepping down in the boss department of cap liner, offered respectively at the groove punishment of should stepping down and offered the first draw-in groove corresponding with the gag lever post and with the corresponding second draw-in groove of limiting plate, the cap shell is put at first draw-in groove and second draw-in groove department through gag lever post and limiting plate card respectively, the chin strap is installed on the cap liner, second adjustment mechanism installs on the chin strap.

2. The safety helmet with transparent face shield of claim 1, wherein: the second adjusting mechanism is composed of a support and a lock plate, positioning grooves are respectively formed in two side portions of the cap lining, one end portion of the lower jaw belt is fixed to the positioning groove in one side of the cap lining, the cross section of the support is U-shaped, a connecting groove is formed in the lower portion of the support, the longitudinal section of the lock plate is L-shaped, pivots are respectively arranged in the two side portions of the lock plate, the lock plate is rotatably and movably mounted on the support through the pivots, a pressing seat is arranged on the lock plate, locking teeth in rows are arranged on the pressing seat, the other end portion of the lower jaw belt penetrates through the space between the lock plate and the support and is fixed to the connecting groove of the support after penetrating through the positioning groove in the other side of the cap lining, and the locking teeth of the pressing seat are pressed on the lower jaw belt.