CN2790209Y

CN2790209Y - Improved fire helmet

Info

Publication number: CN2790209Y
Application number: CN 200520107768
Authority: CN
Inventors: 乔云鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-31
Filing date: 2005-05-31
Publication date: 2006-06-28
Anticipated expiration: 2015-05-31

Abstract

The utility model relates to an improved fire protection helmet, which relates to an appliance for fire protection safety, namely, a helmet. A three-stage shock absorption mechanism which comprises a shock absorption block of a first stage, a shock absorption belt of a second stage, and a shock absorption net of a third stage, and a dual adjusting mechanism which comprises a head circumference adjustor and a depth adjusting fastener of the shock absorption net are mainly arranged inside a helmet shell. The adjusting mechanism and the shock absorption mechanism are connected mutually and crosswise and are arranged inside the helmet shell. Because the three-stage shock absorption mechanism and a bidirectional adjusting mechanism are arranged inside the helmet shell, compared with an original and the only helmet shell and a shock absorption belt type two-stage shock absorption structure, protection strength to a head part is increased greatly by the fire protection helmet which is implemented according to the scheme. The sizes of head circumferences can be adjusted conveniently, and the depth of the helmet can also be adjusted according to different heads by the dual adjusting mechanism. The safety and the protection function of the helmet are enhanced more forcefully. The improved fire protection helmet has the characteristics of reasonable structural design and good use safety.

Description

Improved fire hat

Technical field

The utility model relates to fire hat, especially a kind of improved fire hat.

Background technology

The helmet that the fire fighter is equipped with is a kind of " safety cap " of protection head of special use, and this helmet not only will afford enough impacts and pressure, and will stand the heat radiation of naked light and high temperature.Therefore, the structural strength of the helmet and the anti-fire resistance of material all there is special requirement.Existing fire hat, mainly contain the helmet body, simple and easy protect drape over one's shoulders, formation such as hanging type damping band and head circumference adjusting button, relatively simple for structure and crash-proof intensity and radiation resistance are limited because of it, cause this helmet that fire fighter's safety and protective action are existed potential hidden danger and shortcoming.

The utility model content

The purpose of this utility model is that existing potential safety hazard proposes a kind of improved fire hat with deficiency on its structure in order to overcome on the basis of existing fire hat.This helmet is to adopt following technical scheme to realize: a kind of improved fire hat, comprise helmet shell, damping band, chin belt, protect drape over one's shoulders, the head circumference adjusting button, it is characterized in that being provided with in the helmet shell three grades of dampings and bidirectional modulation mechanism, governor motion is connected each other with damping and is installed in the helmet shell; Three grades of dampings comprise one-level snubber block, secondary damping band and three grades of damping nets, and snubber block adheres on the top in the helmet shell, and the damping band places between snubber block and the damping net; Bidirectional modulation mechanism comprises head circumference adjuster and damping net depth adjusting button, the head circumference adjuster is made up of governor body, gear shaft and knob and tooth bar, gear shaft passes the helmet shell and the back support belt is inserted in the governor body and the tooth bar engagement, tooth bar is located at the head circumference band, and the end in addition of gear shaft has knob to place outside the helmet shell; Damping net depth adjusting button is formed by adjustment sheet and with the cramp of its fastening, and adjustment sheet and cramp are fastened on the selvage of damping net, and adjustment sheet places the head circumference band can do the location and regulates; The damping band is made up of the cross band of two intersections, and front and back are fixed in the stage casing of front support strap and back support belt respectively to the two ends of band, about be fixed in the two ends of front support strap to the two ends of band; The front support strap retainer ring places the first half in the helmet shell, and back support belt retainer ring places interior latter half of of helmet shell; The oval damping net that is provided with selvage stretches tight and places between head circumference band and the back support belt, the negative and positive that the preceding segmental arc of selvage and head circumference band stage casing are provided with are buckled to stretch tight and are connect, the negative and positive button that the back segmental arc of selvage and support belt stage casing, back are provided with stretches tight and connects, and the limit, the left and right sides of selvage is buckled pawl with the one group of adjustment sheet harmonizing yinyang that is arranged on the head circumference band respectively and stretched tight and connect; Head circumference band and front support strap are provided with the mortise lock of flexible connection, and mortise lock comprises dead bolt and snap close; Beam is a compliant oval plate; Front support strap is the sheet band of a plasticity, and the two ends of band are provided with the hanger sheet, and the hanger sheet is shaped on the upper and lower hole that fixes and be connected with the helmet shell; The upper edge of hanger sheet is hinged with middle contact pin; The stage casing of this support belt is provided with the mortise lock snap close, and snap close is to be shaped on one " the casket body " of section for "  " shape at the support zone face; Back support belt is the sheet band of a plasticity, and this band respectively is provided with two one is long and the other is short parallel wing band to the left and right from the stage casing, the stage casing of long wing band and two ends be shaped on respectively be fixed in helmet shell rear portion and about the hole, long wing band is also even to be shaped on buckle to make and to protect the fastener that drapes over one's shoulders; The two ends of short limb band are shaped on the fixedly hole of head circumference governor body respectively; The lower edge in this support belt stage casing is provided with several negative and positive buttons, and these stage casing central authorities are provided with the through hole that passes through gear shaft; The head circumference band is the sheet band of a plasticity, this band from light to the left and right two ends respectively symmetry be shaped on adjustment sheet plug-in opening and alignment pin, bar hole and tooth bar, the back side of head circumference band is shaped on its section and is The dead bolt of shape; Middle part, the lower edge of this band is shaped on that negative and positive are buckled, negative and positive are buckled pawl and middle contact pin; Bar hole and tooth bar are divided into the two ends of head with band, and tooth bar constitutes a limit of bar hole, and each bar hole has only a limit to be provided with tooth bar; The bar hole limit that is provided with tooth bar thickeies, the tooth bar band branch of thickening be formed on head circumference band bar hole just, the back of the body two sides; Governor body is the rectangular tube of an arc, and this pipe is fixed in the two ends after the support belt two short limb band bendings of back, the porose gear shaft of inserting in the center of pipe; The last arc of rectangular tube is along the arc wing plate that is shaped on disjunctor, and wing plate is provided with the fastener of protection pad after the loose joint; The transparent face mask of arc the brim of a hat shape places the first half in the helmet shell, and the face shield two ends respectively are provided with hanging hole; The two ends of chin belt have the dress hole to place the following screw alignment pin of the right and left in the helmet shell, and chin belt is equipped with sheath.

Press the anti-helmet of pin that such scheme is implemented, owing to be provided with three grades of dampings and dual regulation mechanism in the helmet shell, the secondary shock-damping structure that adds the damping belt than former only helmet shell has very increased the protection to head; Dual regulation mechanism not only can regulate the size of head circumference easily, but but also excuse and the weight of suitable accommodation zone helmet, stronger raising the security and the protective action of the helmet.The utlity model has the good characteristics of reasonable in design and safety in utilization.

Description of drawings

Fig. 1 is the utility model outward appearance schematic side view;

Fig. 2 is the vertical sectional structure schematic diagram of the utility model;

Fig. 3 is the utility model helmet shell internal structure schematic diagram;

Fig. 4 is the utility model face shield schematic diagram;

Fig. 5 is the structural representation of front support strap and snap close thereof;

Fig. 6 is the structural representation of back support belt and negative and positive button thereof;

Fig. 7 is the structural representation of governor body and wing plate;

Fig. 8 is the structural representation that head circumference band and mortise lock latch and negative and positive thereof are buckled pawl;

Fig. 9 is the structural representation that head circumference band gear slotted eye and adjustment sheet amplify;

Figure 10 is the structural representation of damping net;

Figure 11 protects the structural representation that drapes over one's shoulders:

Figure 12 is the structural representation of chin belt;

Figure 13 is the structural representation of head circumference adjuster gear shaft and tooth bar engagement.

The specific embodiment

Be further described in detail in conjunction with the accompanying drawings.Helmet shell 1 is made by the more stable polyester fiber material of anti-flammability, and the position that is positioned at left and right sides ear in the helmet shell 1 is respectively equipped with upper and lower two screws 100 and 10 that contain alignment pin, and helmet shell rear end central authorities are provided with a through hole to place gear shaft 75; The bidirectional modulation mechanism of device comprises that beam 2, damping band 3, damping net 4 constitute in the helmet shell 1 three grades of dampings and head circumference adjuster 7 and damping net depth adjusting button 12 formations.Beam 2 is made oval-shaped plate by compliant polyphenyl material, adhere on the top in the helmet shell 1, this pad be except that the helmet shell as the second level damping the one-level damping, damping band 3 places between the damping net 4 of beam 2 and fourth stage damping for third level damping; Damping band 3 is made up of the cross band of two intersections, and front and back are fixed in the stage casing of front support strap 5 and back support belt 6 respectively to the two ends of band 31, about be fixed in the two ends of front support strap 5 to the two ends of band 32; Front support strap 5 is sheet bands of a plasticity, and the two ends of band are provided with the hanger sheet, and the hanger sheet is shaped on upper hole 500 and the next hole 50 that fixes and be connected with helmet shell 1; The upper edge of hanger sheet is hinged with middle contact pin 51; Front support strap 5 retainer rings place the first half in the helmet shell, and back support belt 6 retainer rings place interior latter half of of helmet shell.The oval damping net 4 that is provided with selvage 40 stretches tight and places between head circumference band 8 and the back support belt 6, the negative and positive that the preceding segmental arc of selvage 40 and head circumference band 8 stage casings are provided with are buckled 89 and are stretched tight and connect, the negative and positive button 66 that the back segmental arc of selvage 40 and support belt 6 stage casings, back are provided with stretches tight and connects, and the limit, the left and right sides of selvage 40 is buckled

pawl

82,83 with one group of adjustment sheet 12 harmonizing yinyang that is arranged on head circumference band 8 respectively and stretched tight and connect; Head circumference band 8 and front support strap 5 are provided with the mortise lock 13 of flexible connection, and mortise lock 13 comprises dead bolt 131 and snap close 130, and wherein, section configuration is

The dead bolt 131 of shape places the back side (the D-D section of Fig. 8) of head circumference band 8, and section places the stage casing of front support strap 5 for the snap close 130 of "  " shape " casket body ".The sheet band that back support belt 6 is a plasticity, this band respectively is provided with two parallel long wing band 68 and short limb bands 64 to the left and right from the stage casing, the stage casing of long wing band 68 is shaped on two holes 63 and the two ends of being fixed in helmet shell rear portion and is shaped on two holes of being fixed in about the helmet shell 60, and long wing band is also even to be shaped on buckle to make to protect and to drape over one's shoulders 3 fasteners 61 and two sections velcros 62 of 14; The two ends of short limb band 64 are shaped on fixedly 2 holes 640 of head circumference governor body 70 respectively; The lower edge in these support belt 6 stage casings is provided with the negative and positive button 66 of 4 separation, negative and positive button 66 comprises positive cramp 66 and cloudy cramp 67 (the A-A section of Fig. 6), each positive cramp 66 is shaped on 2 pins 661 that protrude bulb, each cloudy cramp 67 is shaped on 2 holes 670 of joining with pin 661 edges, and the effect of negative and positive cramp is by the negative and positive button to be stretched tight in the selvage posterior segment of damping net to connect it; The stage casing central authorities of support belt 6 are provided with the through hole 65 that passes through gear shaft 75.Head circumference band 8 is the sheet band of a plasticity, this band from light to the left and right two ends respectively symmetry be shaped on 2 plug-in openings 88 and two pairs of alignment pins 85, bar hole 86 and tooth bars 87 up and down, the middle part, lower edge of this band is shaped on that 5 negative and positive are buckled 89 (its structures and effect are as the negative and

positive cramps

66 and 67 of back support belt), 2 pairs of negative and positive are buckled 83,82 and 2 middle contact pin 81 of pawl.Adjustment sheet 12 is a slice bands that are shaped on 8 row's diplopores 120, and a termination of adjustment sheet 12 is shaped on the ball stud 121 of 2 protrusions, and 2 pins 121 are detained the cramp 122 of joining and are shaped on 2 holes 1220 therewith, and its effect is to stretch tight to connect the selvage of damping net; Negative and

positive button pawl

82,83 is respectively 2 bands (C of Fig. 8 amplifies) of making the protrusion of one with head circumference band 8, the ball stud 821 that cloudy button pawl 83 and sun button pawl 82 are shaped on hole 830 respectively and protrude, and its effect is to tighten the damping net from the right and left; Contact pin 81 is hinged each other with the middle contact pin 51 on hanger limit, front support strap 5 left and right sides respectively in about head circumference band 8, promptly hole 810 and hole 510 with pin hinged it, its effect is to support and hold the head circumference band from the right and left; For ease of plug-in opening 88 device adjustment sheets 12 at head circumference band 8, the back side of plug-in opening is shaped on disjunctor " ︹ " shape band (the B-B section of Fig. 8), the two pairs of alignment pins 85 place the last lower edge in hole 88 respectively up and down, 85 of the two pairs of alignment pins interlock with hole 120 and join, be provided with 8 120 of diplopores of row from the right and left in order to regulate the depth of damping net, with suitable user's capitiform demand.Bidirectional modulation mechanism comprises head circumference adjuster 7 and damping net depth adjusting button 12, the head circumference adjuster is by governor body 70, gear shaft 75 and knob 76 and tooth bar 87 are formed, gear shaft 75 passes the through hole 65 of the central authorities of helmet shell 1 and back support belt 6 and inserts in the governor body 70 and tooth bar 87 engagements, tooth bar 87 is located at the one side of bar hole 86 at the two ends of head circumference band 8, for guaranteeing the engagement of wheel and rack, the thickness on bar hole 86 tooth bar limits is the thick twice of head circumference strap, the tooth bar band branch of thickening just is being formed on bar hole, back of the body two sides, its purpose makes two tooth bars and bar hole insert an interior stable guiding and the engagement environment of keeping of rectangular tube of arc relatively, gear shaft 75 stretches out the outer end of helmet shell and disposes knob 76, and its effect is can carry out the adjusting of head circumference size easily outside the helmet.Be better protection user's back brain, the last arc edge of rectangular tube is shaped on the arc wing plate 71 of disjunctor, and wing plate 71 is provided with the fastener 72 and the velcro 73 of protection pad 16 after the loose joint, and the end of gear shaft 75 can be inserted in the center of rectangular tube porose 74.First half in the helmet shell 1 also is provided with the transparent face mask 9 of arc the brim of a hat shape, and two ends, the face shield left and right sides respectively are provided with hanging hole 900, and hanging hole 900 is placed on the last dowel hole 100 of the right and left in the helmet shell earlier---be screwed after being nested with the hole 500 at front support strap 5 two ends again; At this moment, face shield 9 serves as the circular motion that axle is left behind or pushed to left and right sides dowel hole 100.About in the helmet shell down locating hole 10 lines be inserted in the stomidium 60 of back support belt 6---then be inserted in front support strap about 5 hole 50---stomidium 150 backs of being inserted in chin belt about 15 are again fixed with screw.Chin belt is equipped with sheath 151 with the protection chin; For making things convenient for the adjusting of the long end of chin belt, device has adjusting button 152; For ease of taking off, take the lead helmet, the chin belt returning apparatus has quick plug button 154; The velcro 153 of the chin belt two ends system of pasting is and protects that to drape over one's shoulders 14 hasps 143 that are provided with bonding each other.Protecting and draping over one's shoulders 14 velcro 142 is that hasp 62 with support belt 6 both sides, back protects to bonding.

Claims

1, a kind of improved fire hat, comprise helmet shell, damping band, chin belt, protect drape over one's shoulders, the head circumference adjusting button, it is characterized in that being provided with in the helmet shell three grades of dampings and bidirectional modulation mechanism, governor motion is connected each other with damping and is installed in the helmet shell.

2, by the described improved fire hat of claim 1, it is characterized in that three grades of dampings comprise one-level beam, secondary damping band and three grades of damping nets, beam adheres on the top in the helmet shell, and the damping band places between beam and the damping net.

3, by the described improved fire hat of claim 1, it is characterized in that bidirectional modulation mechanism comprises head circumference adjuster and damping net depth adjusting button, the head circumference adjuster is made up of governor body, gear shaft and knob and tooth bar, gear shaft passes the helmet shell and the back support belt is inserted in the governor body and the tooth bar engagement, tooth bar is located at the head circumference band, and the end in addition of gear shaft has knob to place outside the helmet shell; Damping net depth adjusting button is formed by adjustment sheet and with the cramp of its fastening, and adjustment sheet and cramp are fastened on the selvage of damping net, and adjustment sheet places the head circumference band can do the location and regulates.

4, by the described improved fire hat of claim 2, it is characterized in that the damping band is made up of the cross band of two intersections, before and after be fixed in the stage casing of front support strap and back support belt respectively to the two ends of band, about be fixed in the two ends of front support strap to the two ends of band; The front support strap retainer ring places the first half in the helmet shell, and back support belt retainer ring places interior latter half of of helmet shell.

5, by the described improved fire hat of claim 2, the oval damping net that it is characterized in that being provided with selvage stretches tight and places between head circumference band and the back support belt, the negative and positive that the preceding segmental arc of selvage and head circumference band stage casing are provided with are buckled to stretch tight and are connect, the negative and positive button that the back segmental arc of selvage and support belt stage casing, back are provided with stretches tight and connects, and the limit, the left and right sides of selvage is buckled pawl with the one group of adjustment sheet harmonizing yinyang that is arranged on the head circumference band respectively and stretched tight and connect; Head circumference band and front support strap are provided with the mortise lock of flexible connection, and mortise lock comprises dead bolt and snap close.

6, by the described improved fire hat of claim 2, it is characterized in that beam is a compliant oval plate.

7, by claim 4 or 5 described improved fire hats, it is characterized in that front support strap is the sheet band of a plasticity, the two ends of band are provided with the hanger sheet, and the hanger sheet is shaped on the upper and lower hole that fixes and be connected with the helmet shell; The upper edge of hanger sheet is hinged with middle contact pin; The stage casing of this support belt is provided with the mortise lock snap close, and snap close is to be shaped on one " the casket body " of section for "  " shape at the support zone face.

8, by claim 4 or 5 described improved fire hats, it is characterized in that the back support belt is the sheet band of a plasticity, this band respectively is provided with two one is long and the other is short parallel wing band to the left and right from the stage casing, the stage casing of long wing band and two ends be shaped on respectively be fixed in helmet shell rear portion and about the hole, long wing band is also even to be shaped on buckle to make and to protect the fastener that drapes over one's shoulders; The two ends of short limb band are shaped on the fixedly hole of head circumference governor body respectively; The lower edge in this support belt stage casing is provided with several negative and positive buttons, and these stage casing central authorities are provided with the through hole that passes through gear shaft.

9, by claim 3 or 5 described improved fire hats, it is characterized in that the head circumference band is the sheet band of a plasticity, this band from light to the left and right two ends respectively symmetry be shaped on adjustment sheet plug-in opening and alignment pin, bar hole and tooth bar, it is "  " the dead bolt of shape that the back side of head circumference band is shaped on its section; Middle part, the lower edge of this band is shaped on that negative and positive are buckled, negative and positive are buckled pawl and middle contact pin.

10, by the described improved fire hat of claim 9, it is characterized in that bar hole and tooth bar are divided into the two ends of head circumference band, tooth bar constitutes a limit of bar hole, and each bar hole has only a limit to be provided with tooth bar; The bar hole limit that is provided with tooth bar thickeies, the tooth bar band branch of thickening be formed on head circumference band bar hole just, the back of the body two sides.

11, by the described improved fire hat of claim 8, it is characterized in that governor body is the rectangular tube of an arc, this pipe is fixed in the two ends after the support belt two short limb band bendings of back, the porose gear shaft of inserting in the center of pipe; The last arc of rectangular tube is along the arc wing plate that is shaped on disjunctor, and wing plate is provided with the fastener of protection pad after the loose joint.

12, by the described improved fire hat of claim 1, it is characterized in that the transparent face mask of arc the brim of a hat shape places the interior first half of helmet shell, the face shield two ends respectively are provided with hanging hole.

13, by the described improved fire hat of claim 1, it is characterized in that the two ends of chin belt have the dress hole to place the following screw alignment pin of the right and left in the helmet shell, chin belt is equipped with sheath.