CN201596264U

CN201596264U - Combined convertible anti-gas mask

Info

Publication number: CN201596264U
Application number: CN2009201759964U
Authority: CN
Inventors: 彭泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-31
Filing date: 2009-08-31
Publication date: 2010-10-06
Anticipated expiration: 2019-08-31

Abstract

A combined convertible anti-gas mask relates to an anti-gas mask and consists of an inspiration valve plate retaining cap (1), an inspiration valve plate (2), an inspiration valve base (3), a locking nut (4), a rubber tightening filter box connector (5), a filter (6), an expiration valve base (7), a locking nut (8), an expiration valve plate (9), a dustproof cover (10), a circular clip seat (11), belt fasteners (12), a rubber mask body (13) and a plastic mask casing (14). The semi-masked rubber mask body (13) clings to the plastic mask casing (14), and combination of the rubber mask body (13) and the plastic mask casing (14) is realized by aid of fixation of the rubber tensioning filter box connector, fixation of an expiration valve component and fixation of the two belt fasteners. The combined convertible anti-gas is more favorable for expanding visual field of users by aid of an eccentric structure compared with a threaded connector, can be changeably combined randomly according to actual conditions during usage to form a single-filter-box structure or double-filter box structure, can be adaptable to potentially continuously changed using environments better, is universal as the mask can be a semi-mask and a full-mask, and further can be converted between the semi-mask and the full-mask.

Description

The convertible gas mask of a kind of combined type

Technical field:

The utility model relates to a kind of gas mask, especially relates to the convertible gas mask of a kind of combined type.

Background technology:

Existing single filter box demifacet cover, two filter box demifacet cover, single filter box demifacet cover, two filter box demifacet cover, it connects mainly based on plastic whorl connecting mode and plastics snap fit with the filter box.The plastic whorl connecting mode because it is to screw by screw thread, admittedly can't make the filter box have orientating function, can't realize that the off-centre of filtering box connects, make filter box position can't after move, thereby influenced the open degree in the wearer visual field.And the plastics snap fit, its plastics shackle portion is easy to wearing and tearing, has influenced long term reliability.

The utility model content:

The purpose of this utility model provides a kind of combined type gas mask system and structure transform method thereof, it adopts independently rubber to tighten up type filter pod interface structure, and interface structure does not have the more reliable situation that can not occur being difficult for discovering when the screw-type interface unclamps of wear phenomenon, sealing, adopts eccentric structure more to help widening the vision than the screw-type interface; Can arbitrarily change combination according to the actual conditions in using, become single filter box structure or two filter box structure, thereby can better adapt to the environment for use that may constantly change; Be general part in demifacet cover and full facepiece mask, interchangeable.

In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it tightens up type filter pod interface 5, filter box 6, expiration valve seat 7, locking nut 8, expiration valve block 9, dust cap 10, circle deck 11, bracelet 12, rubber cover body 13, plastic shell 14 by suction valve chip retaining cap 1, suction valve chip 2, air-breathing valve seat 3, locking nut 4, rubber and forms; The rubber cover body 13 of demifacet cover fits with plastic shell 14, and its combination each other is fixedly the finishing of fixing, two bracelets of tightening up fixing, the exhalation valve assembly of type filter pod interface by rubber.

What described rubber tightened up type filter pod interface fixedly is firmly to weld with air-breathing valve seat 3 by earlier suction valve chip being kept off cap 1, then suction valve chip 2 is placed in the centre of suction valve chip retaining cap 1 and air-breathing valve seat 3, the pilot hole of more air-breathing valve seat being packed into from rubber cover body inboard, make the threaded portion of air-breathing valve seat be exposed to the outside of plastic shell 14, rubber being tightened up type filter pod interface 5 is placed on the screw thread again, and the screw-threaded coupling by locking nut 4 and air-breathing valve seat 3 makes rubber tighten up type filter pod interface 5 to be fixed, and guaranteeing that rubber tightens up type filter pod interface 5 and guarantees to fix in filter box 6 and use are installed, rubber cover body 13 is also clamped with plastic shell 14 simultaneously.

Described exhalation valve assembly fixedly be by the pilot hole of earlier expiration valve seat 7 being packed into from rubber cover body inboard, make the threaded portion of expiration valve seat 7 be exposed to the outside of plastic shell 14, again locking nut 8 and expiration valve seat 7 are passed through screw-threaded coupling, rubber cover body 13 is also clamped with plastic shell 14 simultaneously, then expiration valve block 9 is placed on the expiration valve seat 7, at last dust cap 10 by being stuck on the locking nut 8.

Described two bracelets fixedly be by justifying deck 11 pilot hole of packing into from rubber cover body inboard earlier, make the little head part of round deck 11 be exposed to the outside of plastic shell 14, then the macropore above the bracelet 12 is placed on the microcephaly of round deck 11, make bracelet 12 toward post-tensioning, utilize the elasticity of plastics that the microcephaly of round deck 11 is stuck in the aperture of bracelet 12, rubber cover body 13 is also clamped with plastic shell 14 simultaneously.

The utility model can assemble a rubber in the centre and tighten up type filter pod interface when needs during when needs use single filter box demifacet cover, and an exhalation valve assembly is respectively adorned in both sides.When needs use two filter box demifacet cover, can assemble an exhalation valve assembly in the centre, both sides are respectively adorned a rubber and are tightened up type filter pod interface and get final product; When needs use list filter box full facepiece mask, can assemble a rubber in the centre and tighten up type filter pod interface.When needs used two filter box full facepiece mask, both sides were respectively adorned a rubber and are tightened up type filter pod interface and get final product.

Rubber tightens up type filter pod interface use principle: utilize the limber function of rubber, when being unkitted filter box 6, rubber tightens up seam 20 diameters of draw-in groove 21 diameters of type filter pod interface less than filter box 6, after the seam 20 that makes filter box 6 snaps in the draw-in groove 21 that rubber tightens up type filter pod interface, owing to tightening up type, rubber filters the effect that the contraction of draw-in groove 21 place's rubber of pod interface reaches sealing, in addition because rubber tightens up the seam design on the type filter pod interface, making filter box 6 be tightened up type filter pod interface 5 by rubber firmly blocks, can not come off, thereby improve the reliability of using greatly because of vibrations with to the pulling of filter box.

The utlity model has following beneficial effect: have the filter pod interface that on full facepiece mask and demifacet cover all interchangeable rubber tightens up closed type, and disclosed this independently rubber tighten up type filter pod interface and be applied to the single filter boxlike of demifacet cover and the structure transform methods of two filter boxlikes, and the structure transform methods of single filter boxlike of full facepiece mask and two filter boxlikes and single-pot; Interface structure does not have wear phenomenon, the more reliable situation that is difficult for discovering when the screw-type interface unclamps of can not occurring of sealing, adopts eccentric structure more to help widening the vision than the screw-type interface; Can arbitrarily change combination according to the actual conditions in using, become single filter box structure or two filter box structure, thereby can better adapt to the environment for use that may constantly change; Be general part in demifacet cover and full facepiece mask, interchangeable.

Description of drawings:

Fig. 1 is the decomposition texture schematic diagram of two filter box demifacet covers of the present utility model;

Fig. 2 is the decomposition texture schematic diagram of single filter box demifacet cover of the present utility model;

Fig. 3 is that rubber of the present utility model tightens up type filter pod interface use principle figure.

The specific embodiment:

Referring to Fig. 1-2, this concrete true mode by the following technical solutions: it tightens up type filter pod interface 5, filter box 6, expiration valve seat 7, locking nut 8, expiration valve block 9, dust cap 10, circle deck 11, bracelet 12, rubber cover body 13, plastic shell 14 by suction valve chip retaining cap 1, suction valve chip 2, air-breathing valve seat 3, locking nut 4, rubber and forms; The rubber cover body 13 of demifacet cover fits with plastic shell 14, and its combination each other is fixedly the finishing of fixing, two bracelets of tightening up fixing, the exhalation valve assembly of type filter pod interface by rubber.

Rubber tightens up type filter pod interface use principle: utilize the limber function of rubber, when being unkitted the filter box, rubber tightens up the seam diameter of the draw-in groove diameter of type filter pod interface less than the filter box, after the seam that makes the filter box snaps in the draw-in groove that rubber tightens up type filter pod interface, owing to tightening up type, rubber filters the effect that the contraction of the draw-in groove place rubber of pod interface reaches sealing, in addition because rubber tightens up the seam design on the type filter pod interface, making the filter box be tightened up type filter pod interface by rubber firmly blocks, can not come off, thereby improve the reliability of using greatly because of vibrations with to the pulling of filter box.

This specific embodiment has the filter pod interface that on full facepiece mask and demifacet cover all interchangeable rubber tightens up closed type, and disclosed this independently rubber tighten up type filter pod interface and be applied to the single filter boxlike of demifacet cover and the structure transform methods of two filter boxlikes, and the structure transform methods of single filter boxlike of full facepiece mask and two filter boxlikes and single-pot; Interface structure does not have wear phenomenon, the more reliable situation that is difficult for discovering when the screw-type interface unclamps of can not occurring of sealing, adopts eccentric structure more to help widening the vision than the screw-type interface; Can arbitrarily change combination according to the actual conditions in using, become single filter box structure or two filter box structure, thereby can better adapt to the environment for use that may constantly change; Be general part in demifacet cover and full facepiece mask, interchangeable.

Claims

1. convertible gas mask of combined type, it is characterized in that it by suction valve chip retaining cap (1), suction valve chip (2), air-breathing valve seat (3), locking nut (4), rubber tighten up type filter pod interface (5), filter box (6), expiration valve seat (7), locking nut (form by (8), expiration valve block (9), dust cap (10), circle deck (11), bracelet (12), rubber cover body (13), plastic shell (14); The rubber cover body (13) of demifacet cover fits with plastic shell (14); Adopting independently, rubber tightens up type filter pod interface structure, rubber tightens up type filter pod interface and is unkitted when filtering box (6), rubber tightens up seam (20) diameter of draw-in groove (21) diameter of type filter pod interface less than filter box (6), after the seam (20) of filter box (6) snapped in the draw-in groove (21) that rubber tightens up type filter pod interface, rubber tightened up type filter pod interface (5) and blocks filter box (6).

2. the convertible gas mask of a kind of combined type according to claim 1, the rubber cover body (13) that it is characterized in that described demifacet cover and plastic shell (14) are fixedly the fitting of fixing, two bracelets of tightening up fixing, the exhalation valve assembly of type filter pod interface by rubber.

3. the convertible gas mask of a kind of combined type according to claim 2, what it is characterized in that described rubber tightens up type filter pod interface fixedly is by suction valve chip retaining cap (1) and firmly welding of air-breathing valve seat (3), suction valve chip (2) is placed in the centre of suction valve chip retaining cap (1) and air-breathing valve seat (3), the air-breathing valve seat pilot hole of packing into from rubber cover body inboard, the threaded portion of air-breathing valve seat is exposed to the outside of plastic shell (14), rubber tightens up type filter pod interface (5) and is placed on the screw thread, and the screw-threaded coupling by locking nut (4) and air-breathing valve seat (3) fixedly rubber is tightened up type and filtered pod interface (5).

4. the convertible gas mask of a kind of combined type according to claim 2, what it is characterized in that described exhalation valve assembly fixedly is by expiration valve seat (7) pilot hole of packing into from rubber cover body inboard, the threaded portion of expiration valve seat (7) is exposed to the outside of plastic shell (14), locking nut (8) passes through screw-threaded coupling with expiration valve seat (7), rubber cover body (13) clamps with plastic shell (14), expiration valve block (9) is placed on the expiration valve seat (7), and dust cap (10) is by being stuck on the locking nut (8).

5. the convertible gas mask of a kind of combined type according to claim 2, what it is characterized in that described two bracelets fixedly is by circle deck (11) pilot hole of packing into from rubber cover body inboard, the little head part of circle deck (11) is exposed to the outside of plastic shell (14), macropore above the bracelet (12) is placed on the microcephaly of round deck (11), the microcephaly of deck (11) is stuck in the aperture of bracelet (12), and rubber cover body (13) clamps with plastic shell (14).