CN2181198Y

CN2181198Y - Disassembled mask

Info

Publication number: CN2181198Y
Application number: CN 93226597
Authority: CN
Inventors: 李永强
Original assignee: SHANGHAI INDUSTRIAL PROTECTIVE ARTICLE FACTORY
Current assignee: SHANGHAI INDUSTRIAL PROTECTIVE ARTICLE FACTORY
Priority date: 1993-11-17
Filing date: 1993-11-17
Publication date: 1994-11-02
Anticipated expiration: 2003-11-17

Abstract

The utility model relates to a protective mask, in particular to a detachable face mask. The detachable face mask designed by the utility model comprises a head ring and a face mask body which comprise a top ring and a bottom ring. The head ring with a regulating element is connected with a semicircular helmet which is movably connected with the transparent face mask body. The utility model which overcomes the defect that the disassembly and the replacement of face mask bodies are inconvenient existing in the prior art can be used as a labour protection article or can be used for riders.

Description

Disassembled mask

The utility model relates to protective face mask, particularly a kind of detachable face shield.

At present, the material of splashing or sand-lime are being arranged, the grit place avoids being hurt for protecting staff's eyes and face, and operating personnel use the lucite face shield.This face shield deal is heavy, and transposing is inconvenient, and its hatband is made of vulcan fibre, not anti-sweat, and worn the tenderness sense.The hatband girth can not regulated at will, has brought how much trouble to the user.Chinese patent application number is 89204505.1 to disclose a kind of dust mask, and it is that mask body is linked to each other with the head circle by connector.But because its connector is contained on the head circle collar, so connector must be very long, in addition, its structure makes weight off-centre, wears uncomfortable.

The purpose of the utility model is to overcome above-mentioned prior art weak point, provides a kind of and is convenient to dismantle, the detachable face shield of easy to use, comfortable wearing.

The utility model proposes of task is finished by following technical proposals: a kind of detachable face shield, comprise head circle and the mask body formed by collar and foundation ring, the head of regulating parts at band encloses connection one cup head helmet, active connection one transparent area cover body on the semicircle helmet.

The purpose of the utility model also realizes by following technical proposals: be provided with at least two holes on the flange of the semicircle helmet, the position in hole correspondingly is provided with aperture at the top edge of mask body, corresponding to the helmet, and the helmet is connected by the locking member of being located in the hole with mask body.

The head circle is gone up set adjusting parts and is comprised band end, at least one opposite end and gear shaft in the head circle, the end band is installed with slotted eye on the end, the monolateral toothrow mouth that is provided with in the hole, upper and lowerly stagger in monolateral tooth mouth position in two slotted eyes, gear shaft penetrates in the two overlapping slotted eyes, and mesh with the tooth mouth.

The utility model adopts perforation to add the semicircle helmet of the active joint face cover body of locking member, in case mask body damages or need not, just can pull down easily or exchange for and need not any instrument.The utility model has adopted helmet structure, makes the face shield position suitable, weight balancing, comfortable wearing.The girth of head circle is conveniently adjusted to be fit to the user of various head dummys.

Accompanying drawing has provided an embodiment of the present utility model.

Fig. 1 is the utility model vertical view.

Fig. 2 is the utility model front view.

Fig. 3 is the cutaway view that parts are regulated in the foundation ring in the utility model.

Fig. 4 is a locking member structure for amplifying schematic diagram.

Fig. 5 is the structural representation that parts are regulated in the foundation ring in the utility model.

Below, the utility model is described in further detail for the embodiment shown in conjunction with the accompanying drawings.

The utility model comprises transparent organic glass mask body 1, the semicircle helmet 2 and Tou Quan, and collar 3 and foundation ring 4 that the head circle is made by the polyethylene from high pressure process material are formed.Bolt connects between the semicircle helmet 2 and the head circle.A left and right disjunctor Shuan Quan hole 5, the radius difference of two circles in this disjunctor Shuan Quan hole of being respectively equipped with on the forward position flange of the semicircle helmet 2.Flange center, helmet forward position is provided with a spherical surface body 6.Transparent cover 1 edge, about be respectively equipped with a mounting hole 7, the centre has a circular hole 8, the mounting hole 7 on the mask body, the position of circular hole 8 are corresponding one by one with the position of the disjunctor Shuan Quan hole 5 of the semicircle helmet and spherical surface body 6 respectively.During assembling, that the circular hole that the spherical surface body on the semicircle helmet 6 embeds on the transparent area cover body is pre-aligned.Locking member is connected as a single entity successively by spanner 9, groove 10 and round platform 11.The groove 10 of locking member closely is connected the small sircle hole 8 in the disjunctor Shuan Quan hole with mounting hole 7, spanner 9 is turned to the outside of small sircle hole 8 in the disjunctor Shuan Quan hole, has so just realized active connection the between mask body 1 and the semicircle helmet 2.Be not respectively equipped with a parallel row's projection 13 and an aperture 14, position correspondence between projection 13 and the aperture 14 on 12 at the two ends band of the collar 3 of head circle.Just scalable and dwindle the collar girth by projection 13 being embedded aperture 14 on the diverse locations.Not being respectively equipped with an oval slotted eye 15 on 12 at the two ends of foundation ring 4 band, being provided with monolateral tooth mouth 16 in the slotted eye, staggers one on the other just in the monolateral tooth mouth position on the band end, two ends.Two ends band end 12 is overlapping, connect with gear shaft 17, screw 18 two sides clamping and positioning, gear shaft 17 and two monolateral tooth mouth 16 engagements put flexure strip and capstan 19.Clockwise rotate capstan 19, related gear shaft 17 rotations increase the lap at band end, two ends 12, and like this, the girth of foundation ring dwindles.Otherwise, the foundation ring girth is increased.Case 20 makes it avoid exposing in order to contain the adjusting parts.

Claims

1, a kind of detachable face shield comprises head circle and the mask body be made up of collar and foundation ring, it is characterized in that connecting a cup head helmet, active connection one transparent area cover body on the semicircle helmet on the head circle of band adjusting parts.

2, detachable face shield according to claim 1, the flange that it is characterized in that the helmet is provided with at least two holes, the position in hole correspondingly is provided with aperture at the top edge of mask body, corresponding to the helmet, and the helmet is connected by the locking member of being located in the hole with mask body.

3, detachable face shield according to claim 1 and 2, it is characterized in that described adjusting parts comprise end, at least one opposite end, gear shaft in the head circle, end is installed with slotted eye on the end, the monolateral toothrow mouth that is provided with in the hole, monolateral tooth mouth upper and lower staggering of position in two elliptical apertures, gear shaft penetrates in the two overlapping slotted eyes, and meshes with the tooth mouth.

4, detachable face shield according to claim 2 is characterized in that described locking member is connected as a single entity successively by spanner, groove and round platform to combine.