CN105079933B - A kind of face shield assembly - Google Patents

A kind of face shield assembly Download PDF

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Publication number
CN105079933B
CN105079933B CN201510351032.0A CN201510351032A CN105079933B CN 105079933 B CN105079933 B CN 105079933B CN 201510351032 A CN201510351032 A CN 201510351032A CN 105079933 B CN105079933 B CN 105079933B
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CN
China
Prior art keywords
gas outlet
end
conducting element
face shield
shield assembly
Prior art date
Application number
CN201510351032.0A
Other languages
Chinese (zh)
Other versions
CN105079933A (en
Inventor
刘远翔
詹谊锋
庄志
Original Assignee
北京怡和嘉业医疗科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 北京怡和嘉业医疗科技股份有限公司 filed Critical 北京怡和嘉业医疗科技股份有限公司
Priority to CN201510351032.0A priority Critical patent/CN105079933B/en
Publication of CN105079933A publication Critical patent/CN105079933A/en
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Publication of CN105079933B publication Critical patent/CN105079933B/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06Respiratory or anaesthetic masks
    • A61M16/0605Means for improving the adaptation of the mask to the patient
    • A61M16/0633Means for improving the adaptation of the mask to the patient with forehead support
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/06Respiratory or anaesthetic masks
    • A61M16/0605Means for improving the adaptation of the mask to the patient
    • A61M16/0616Means for improving the adaptation of the mask to the patient with face sealing means comprising a flap or membrane projecting inwards, such that sealing increases with increasing inhalation gas pressure
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/08Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816Joints or connectors
    • A61M16/0825Joints or connectors with ball-sockets
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00Special media to be introduced, removed or treated
    • A61M2202/02Gases
    • A61M2202/0225Carbon oxides, e.g. Carbon dioxide

Abstract

The present invention proposes a kind of face shield assembly.The face shield assembly includes:Frame is provided with the first gas outlet;Forehead supports are provided with the second gas outlet;Conducting element, the passage of the second end is penetrated into including the first end coordinated with first gas outlet, the second end coordinated with second gas outlet and formation from the first end, and the passage connects first gas outlet and the second gas outlet.In the embodiment of the face shield assembly of the present invention, the exhaust passage being arranged between forehead supports and frame is conducive to the discharge of carbon dioxide, avoids carbon dioxide and is repeated sucking, while also reduces the noise generated when air-flow liquidates.

Description

A kind of face shield assembly

Technical field

The present invention relates to breathing assistance apparatus, more particularly to a kind of face shield assembly.

Background technology

It is well known that face shield assembly (or breathing mask) is applied primarily to various breathing problems or sleep-respiratory barrier In the treatment of the continuous positive airway pressure hindered.Face shield assembly usually requires to be connected with lung ventilator, so as to what lung ventilator was exported Respirable gas is supplied to wearer.

Human body constantly sucks air by CPAP masks from lung ventilator, while is also continuously outwards breathing out dioxy Change the gases such as carbon.The gas of exhalation is discharged as sucking and the place of exhaled gas and is just avoided that carbon dioxide by mask in time Repetition sucking.Therefore, the exhaust outlet for selecting suitable position is extremely important.The exhaust outlet of suitable position is conducive to carbon dioxide Discharge reduces the repetition sucking of carbon dioxide, advantageously reduces noise, reduces interference of the air-flow to companion.However, the prior art In mask intake interface and exhaust outlet be arranged on bend pipe so that the gas of discharge cannot be timely in mask main cavity gas Discharge, forms so-called dead space, and carbon dioxide is caused to repeat to suck;And the intake interface and exhaust outlet of mask of the prior art It is arranged on bend pipe so that a part of gas that intake interface enters directly is discharged from exhaust outlet, and a part is caused to need to arrange The exhaust gas gone out cannot be discharged smoothly.Exhaust gas discharge part exhaust gas cannot repeat to suck by patient in time, therefore reduce wearer Satisfaction.

The content of the invention

The technical problems to be solved by the invention are to overcome the exhaust gas breathed out in mask in the prior art timely The deficiency of smooth discharge.

In view of the above-mentioned problems, the present invention proposes a kind of face shield assembly, including:Frame is provided with the first gas outlet;Forehead Stent is provided with the second gas outlet;Conducting element, including the first end coordinated with first gas outlet and second outlet The second end of mouth cooperation and formation penetrate into the passage of the second end, the passage connection described first from the first end Gas outlet and the second gas outlet.

The embodiment of face shield assembly according to the present invention, including frame, forehead supports and conducting element.It is set on frame There is the first gas outlet.The second gas outlet is provided on forehead supports.Conducting the first gas outlet and second is provided on conducting element to go out The passage of gas port.In this way, the exhaust gas in frame can be discharged into extraneous ring by the first gas outlet, passage and the second gas outlet In border.Compared to gas outlet is arranged on intake elbow in the prior art, the first gas outlet is directly arranged at frame by the present invention On frame, the position of the first gas outlet and the air inlet of face shield assembly not on same position so that the air inlet of face shield assembly with Exhaust forms benign cycle, avoids inlet air flow and exhaust stream liquidates.Therefore, face shield assembly is provided separately intake interface With the discharge for being conducive to carbon dioxide of exhaust outlet, avoid carbon dioxide and be repeated sucking, while also reduce air-flow and liquidate When the noise that generates.And connected the first gas outlet of frame with the second gas outlet of forehead supports by conducting element, it will be from The gas of one gas outlet outflow is discharged from the second gas outlet of forehead supports, and the gas flowed out from the first gas outlet can be avoided straight Forehead supports are blown, extend gas outflow path, reduce the noise of gas discharge.

In one embodiment, be provided with intake interface on the frame, the axis of first gas outlet with it is described into Angle is formed between the axis of gas interface.

In one embodiment, the frame includes first connecting portion, and the forehead supports include being connected with described first The hinged second connecting portion in portion.

In one embodiment, the first connecting portion is the intake interface, and the second connecting portion includes fixation and sets The connector sleeve being placed on the forehead supports, the connector sleeve be sheathed in the intake interface and with the intake interface flexural pivot It connects.

In one embodiment, second gas outlet is arranged to sieve pore, the second end of the conducting element with it is described before Volume stent is connected, and all the sieve pore is connected with the passage.

In one embodiment, mounting hole is additionally provided on the forehead supports, the mounting hole is around all sieves Hole is set, and the second end of the conducting element is connected by the mounting hole with the forehead supports.

In one embodiment, the passage is arranged to sieve pore close to the part of the second end of the conducting element, all The sieve pore is connected with second gas outlet.

In one embodiment, the first end of the conducting element is removably secured with the frame and is connected;The water conservancy diversion The second end of part is removably secured with the forehead supports and is connected.

In one embodiment, second gas outlet is arranged to sieve pore, is provided on the forehead supports around described The pillar of sieve pore and the hollow form extended towards the frame;The pillar is set on the end away from the forehead supports surface There is peripheral flange, the conducting element is provided with matched with the peripheral flange on the channel inner surface of second end Buckling groove.

In one embodiment, the conducting element is elastic component.

The embodiment of face shield assembly according to the present invention, including frame, forehead supports and conducting element.It is set on frame There is the first gas outlet.The second gas outlet is provided on forehead supports.Conducting the first gas outlet and second is provided on conducting element to go out The passage of gas port.In this way, the exhaust gas in frame can be discharged into extraneous ring by the first gas outlet, passage and the second gas outlet In border.Compared to gas outlet is arranged on intake elbow in the prior art, the first gas outlet is directly arranged at frame by the present invention On frame, the position of the first gas outlet and the air inlet of face shield assembly not on same position so that the air inlet of face shield assembly with Exhaust forms benign cycle, avoids inlet air flow and exhaust stream liquidates.Therefore, face shield assembly is provided separately intake interface With the discharge for being conducive to carbon dioxide of exhaust outlet, avoid carbon dioxide and be repeated sucking, while also reduce air-flow and liquidate When the noise that generates.And connected the first gas outlet of frame with the second gas outlet of forehead supports by conducting element, it will be from The gas of one gas outlet outflow is discharged from the second gas outlet of forehead supports, and the gas flowed out from the first gas outlet can be avoided straight Forehead supports are blown, extend gas outflow path, reduce the noise of gas discharge.

When conducting element is connected together by the mounting hole being arranged on forehead supports, conducting element will not be from forehead supports It is separated from, prevents the unexpected loss of conducting element.Conducting element is connected together with forehead supports and frame by being removably secured When, conducting element regularly can be disassembled carry out cleaning and sterilizing by wearer.

Description of the drawings

The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.

Fig. 1 is the structural decomposition diagram of the face shield assembly of the present invention.

Fig. 2 is the structure diagram of the spherical shaft of the face shield assembly of the present invention.

Fig. 3 is the structure diagram of the frame of the face shield assembly of the present invention.

Fig. 4 is the forehead support structures schematic diagram of the first embodiment of the face shield assembly of the present invention.

Fig. 5 is the structure diagram of the conducting element of the first embodiment of the face shield assembly of the present invention.

Fig. 6 is the whole assembling schematic diagram of the first embodiment of the face shield assembly of the present invention.

Fig. 7 is A-A schematic cross-sectional views in Fig. 5.

Fig. 8 is the structure diagram of the conducting element of the second embodiment of the face shield assembly of the present invention.

Fig. 9 is the conducting element scheme of installation of the second embodiment of the face shield assembly of the present invention.

Figure 10 is the forehead support structures schematic diagram of the 3rd embodiment of the face shield assembly of the present invention.

Figure 11 is the partial enlarged view at B in Figure 10.

Figure 12 is the structure diagram of the conducting element of the 3rd embodiment of the face shield assembly of the present invention.

Figure 13 be the present invention be equipped with 3rd embodiment forehead supports and conducting element face shield assembly complete section Schematic diagram.

Description of symbols:

11st, chassis body;111st, the first gas outlet;112nd, intake interface;113rd, pad;1121st, interior burnishing surface;12nd, it is preceding Volume stent;121st, the second gas outlet;122nd, mounting hole;123rd, pillar;124th, peripheral flange;13rd, winding pipe assembly;14th, it is spherical to turn Axis;141st, burnishing surface;15th, conducting element;151st, the first fixed part;152nd, the second fixed part;153rd, the 3rd fixed part;154th, first Circumferential slot;155th, passage;156th, the second circumferential slot;157th, buckling groove;16th, sieve pore;98th, discharge directions;99th, airintake direction; 100th, intake interface axis;The angle of α, discharge directions and airintake direction.

In the accompanying drawings, identical component uses identical reference numeral.Attached drawing is not drawn according to actual ratio.

Specific embodiment

The present invention will be further described with reference to the accompanying drawings.

The embodiment of the face shield assembly of the present invention, as shown in Figure 1, it includes frame and is swingably arranged on frame Forehead supports 12.Frame includes pad 113 and the chassis body 11 being connected with pad 113.Chassis body 11 and pad 113 can be separately set, and be connected by the modes such as being clamped, being bonded;Secondary encapsulated integrated molding can also be passed through.Pad 113 makes It is fabricated with flexible material, so that its more preferable more comfortably skin contact with people, while also can be good with the skin attachement of people It is good, ensure air-tightness.Chassis body 11 further includes intake interface 112.Position in chassis body 11 close to intake interface 112 is set It is equipped with the first gas outlet 111.Realize the connection of the internal environment and external environment of chassis body 11 in the first gas outlet 111.First Angle is formed between the axis of gas outlet 111 and the axis of intake interface 112.Forehead supports 12 include and 11 phase of chassis body The mounting portion of connection, with the sticking part of forehead fitting and being connected the middle part of mounting portion and sticking part.In forehead supports 12 Between be provided with the second gas outlet 121 in portion.Exhaust outlet of second gas outlet 121 as face shield assembly, inside chassis body 11 Gas is eventually discharged at the second gas outlet 121 in atmospheric environment.

Conducting element 15 is provided between the first gas outlet 111 and the second gas outlet 121.Conducting element 15 includes going out with first The first end of gas port cooperation, the passage for penetrating into second end from first end with the second end of the second gas outlet cooperation and formation 155.In one embodiment, the end face of first end can be adhered directly in chassis body 11,155 and first gas outlet of passage 111 connections completely.The end face of second end can be adhered to forehead supports 12 towards on the surface of chassis body 11 with stent, passage 155 connect completely with the second gas outlet 121.In this way, when wearer wears the face shield assembly, the gas of wearer's exhalation can lead to The first gas outlet 111,155 and second gas outlet 121 of passage is crossed to be discharged into atmospheric environment.

First gas outlet 111,155 and second gas outlet 121 of passage formed exhaust passage no longer with winding pipe assembly 13 Inlet channel overlap.Since the axis of the first gas outlet 111 and the axis of intake interface 112 are formed with angle, Also angle α (as shown in figure 13) is formed between the discharge directions 98 of face shield assembly and airintake direction 99.Usually, angle α is at 30 ° To between 60 °;During so that wearer wearing the face shield assembly of the present invention, the air-flow discharged at forehead supports 12 will not with from curved The air-flow that pipe enters liquidates, beneficial to the discharge of exhaust gas.When discharge directions 98 form substantially 45 degree angle with airintake direction 99, make It obtains gas obliquely to blow out, can farthest reduce interference of the air-flow to companion.Therefore, it is arranged on forehead supports 12 Exhaust outlet is conducive to the discharge of carbon dioxide, avoids carbon dioxide and is repeated sucking, while also reduces when air-flow liquidates and produce Raw noise reduces influence of the air-flow to other people.

Chassis body 11 includes first connecting portion.It is provided on forehead supports 12 and first connecting portion is hinged second is connected Portion.

In the present embodiment, first connecting portion includes the intake interface 112 in chassis body 11.The mounting portion of forehead supports 12 On be provided with connection through hole.Second connecting portion includes the connector sleeve for being sheathed on connection through hole of forehead supports 12.The one of connector sleeve End and 112 ball-joint of intake interface.As shown in Figure 2 and Figure 3, with 11 intake interface of chassis body, 112 ball-joint and and forehead supports The connector sleeve that 12 connection through hole is fixedly connected is spherical shaft 14.Parallel burnishing surface there are two being set in spherical shaft 14 141.The burnishing surface 141 of spherical shaft 14 and the interior burnishing surface 1121 set on 112 inner surface of intake interface of chassis body 11 After being engaged, spherical shaft 14 may only be swung in intake interface 112.

In other examples, first connecting portion and second connecting portion pivot joint connection.Such as:First connecting portion is setting In being provided with the first mounting hole on the first supporting rack in chassis body, the first supporting rack;Second connecting portion is to be arranged on forehead Second supporting rack of the middle part of stent, is provided with the second mounting hole corresponding with the first mounting hole on the second supporting rack, and first Mounting hole and the second mounting hole are pivotally connected.

In the present embodiment, conducting element 15 is the elastic component for itself having elastic deformation characteristic, is subject to become during external force Shape can restore again after removing external force.In this way, when actuating the forehead supports 12 being connected with spherical shaft 14, forehead branch Frame 12 can be swung, and apply stress to conducting element 15.

When forehead supports 12 are swung towards close to wearer's forehead, forehead supports 12 can compress conducting element 15 and bring it about Flexible deformation.After conducting element 15 deforms, passage 155 is still kept unimpeded, and is not influenced air-flow and is passed through from conducting element 15.Swingable Forehead supports 12 can adjust the distance of wearer's forehead, meet the wearing of the different forehead height of different wearers and need It asks.In addition, the exhaust outlet that the second gas outlet 121 that the middle part of forehead supports 12 is set is formed limits discharge directions 98. When wearer wears the face shield assembly, discharge directions 98 are directed towards oblique upper, and discharge air-flow is no longer faced positioned at wearer The other people such as the companion in front reduce interference of the discharge air-flow to other people such as companions, improve the comfort level of wearing.

In one embodiment, the both ends of conducting element 15 using bonding by the way of respectively with forehead supports 12 and chassis body 11 bond together, and ensure that passage 155, the first gas outlet 111 are connected with the second gas outlet 121 with this.Such installation side Formula is quick and convenient, without carrying out excessive processing to forehead supports 12, conducting element 15 and chassis body 11.In the present embodiment, the Two gas outlets 121 are sieve pores 16.Sieve pore 16 is bellmouth, is less than towards the aperture of atmospheric environment one side towards 155 one side of passage Aperture.

In one embodiment, as shown in figure 4, the second gas outlet 121 is sieve pore 16.Sieve pore 16 is bellmouth, towards greatly The aperture of compression ring border one side is less than the aperture towards 155 one side of passage.It is additionally provided on forehead supports 12 around whole sieve pores 16 Mounting hole 122.Mounting hole 122 is uniformly distributed circumferentially around whole sieve pores 16.

The second end of conducting element 15 is connected to forehead supports 12 by mounting hole 122.The second end of conducting element 15 includes the One fixed part 151, the second fixed part 152 and the 3rd fixed part 153.Connection procedure is to be processed first on forehead supports 12 Then good sieve pore 16 and mounting hole 122 process conducting element 15 using encapsulated technique.The first fixed part 151 of conducting element 15 In the outside of forehead supports 12, the second fixed part 152 is located at the inside of forehead supports 12.Conducting element is filled in mounting hole 122 15 the 3rd fixed part 153, the first fixed part 151 and the second fixed part 152 be all connected as with the 3rd fixed part 153 one it is whole Body.In this way, as shown in Figure 6, Figure 7, after completing encapsulated technique, conducting element 15 is just formed as an entirety with forehead supports 12, no It can be removed from forehead supports 12, unless carrying out damage type dismounting to conducting element 15.Conducting element 15 in deformation process not The cooperation with the second gas outlet 121 can be departed from, such conducting element 15 is not allowed easy to be lost yet.

In one embodiment, the connection mode of bonding may be employed in the first end of conducting element 15 and chassis body 11 is fixed Connection.In addition, as shown in figure 5, the first circumferential slot 154 can be set on the end outer surface of 15 first end of conducting element.Such as Shown in Fig. 7, firmly the first end of conducting element 15 is inserted into the first gas outlet 111, the first circumferential slot 154 is allowed to snap fit onto frame To realize the connection of conducting element 15 and chassis body 11 on the outer wall of main body 11.Preferably, coating bonding in the first circumferential slot 154 Agent, after outer wall clamping of first circumferential slot 154 with chassis body 11, bonding agent can be by outer wall and the table of the first circumferential slot 154 Face is bonded together.In this way, the end of first end achieves a fixed connection with outer wall, first will not be made when conducting element 15 deforms The end at end deforms and causes the end disengaging of first end and being fixedly connected for outer wall.It is completed with outer wall the end of first end After bonding, the air-tightness at this is also ensured, air-flow is made not let out from the gap location between the first circumferential slot 154 and outer wall surface Dew.

In one embodiment, as shown in figure 8, passage 155 is arranged to sieve pore 16 close to the part of 15 second end of conducting element. Sieve pore 16 is bellmouth, and the aperture towards 155 one side of passage is less than towards the aperture of atmospheric environment one side.Sieve pore 16, which is arranged on, leads Stream part 15 on compared be arranged on forehead supports 12 be easier fabricate.Second gas outlet 121 is configured to receiving second The through hole of the end at end.It is made in this way, the second gas outlet 121 is configured to through hole compared with the more convenient processing of sieve pore 16 is configured to It makes.

The second end that sieve pore 16 is provided on conducting element 15 is engaged with the second gas outlet 121.Second end is inserted into Second gas outlet 121 simultaneously passes through bonding way and forms a fixed connection with forehead supports 12.In one embodiment, such as Fig. 8, Fig. 9 Shown, second end can also set the second circumferential slot 156.It is provided on the inner surface of second gas outlet 121 and the second circumferential slot 156 matched protrusions.Preferably, protrusion is achieved a fixed connection with the second circumferential slot 156 with bonding connection mode, is ensured solid Surely stablizing for connecting is firm.The connection mode that bonding may be employed in the first end of conducting element 15 is fixedly connected with chassis body 11. In addition, the end of the first end of conducting element 15 is inserted into the first gas outlet 111 and by being arranged on end outer surface One circumferential slot 154 and the outer wall of chassis body 11 bond together to achieve a fixed connection, and ensure the air-tightness at this and fixation Stablizing for connection is firm.

In one embodiment, as shown in Figure 10, Figure 11, the second gas outlet 121 is arranged to sieve pore 16.Sieve pore 16 is taper Hole is less than the aperture towards 155 one side of passage towards the aperture of atmospheric environment one side.It is provided on forehead supports 12 towards frame The pillar 123 that main body 11 extends.Pillar 123 is hollow, that is, is provided with centre bore.Centre bore is connected with all sieve pores 16. Peripheral flange 124 is provided on the end on the top (that one end away from 12 surface of forehead supports) of pillar 123.

As shown in figure 12, passage 155 is provided with and 124 phase of peripheral flange on the inner surface of the second end of conducting element 15 The buckling groove 157 of cooperation.After pillar 123 is inserted into passage 155, peripheral flange 124 is just snapped onto in buckling groove 157 and led with realizing Flow the connection of part 15 and forehead supports 12.Preferably, peripheral flange 124 is realized with buckling groove 157 using Nian Jie connection mode It is fixedly connected, ensures that air-tightness is firm with stablizing of being fixedly connected.The connection side of bonding may be employed in the first end of conducting element 15 Formula is fixedly connected with chassis body 11.In addition, the end of the first end of conducting element 15 is inserted into the first gas outlet 111 and passes through It is arranged on the first circumferential slot 154 of outer surface and the outer wall of chassis body 11 bonds together and achieves a fixed connection, ensureing should The air-tightness at place is firm with stablizing of being fixedly connected.

Optionally, the passage 155 of conducting element 15 is stepped hole.Intermediate aperture is maximum and the wall thickness opposite end at middle part compared with It is thin.In this way, when conducting element 15 is when being compressed, middle part is more easily deformed.Conducting element 15 can use silica gel, rubber etc. Material fabricates.

Optionally, the conducting element 15 of above example is spring washer.Fabricating the material of spring washer includes rubber or silica gel Material.

The present invention face shield assembly embodiment, including set in chassis body 11 the first gas outlet 111, forehead supports The second gas outlet 121 set on 12 and connection forehead supports 12 and the conducting element of chassis body 11.By the first gas outlet 111st, the discharge directions 98 for the exhaust passage that 155 and second gas outlet 121 of passage of conducting element is formed and chassis body 11 In an angle, i.e., the angle α that discharge directions 98 are formed with airintake direction 99 is (such as Figure 13 institutes for 100 shape of axis of intake interface 112 Show), the scope of the angle α is 40 degree to 60 degree.Preferably, the angle of the angle is 45 degree.In this way, exhaust passage will not with it is curved The inlet channel overlapping of pipe.

Wearer wear the present invention face shield assembly when, at forehead supports 12 discharge air-flow will not with from bend pipe into The air-flow entered liquidates.Therefore, exhaust outlet is arranged on the discharge for being conducive to carbon dioxide on forehead supports 12, avoids dioxy Change carbon and be repeated sucking, while also reduce the noise generated when air-flow liquidates.In addition, when wearing the face shield assembly of the present invention, The discharge directions 98 of exhaust passage no longer face the other people such as the companion in front of wearer towards oblique upper, discharge air-flow, Reduce interference of the discharge air-flow to other people such as companions, improve the comfort level of wearing.So as to which swingable forehead supports 12 can To meet the wearing demand of the different forehead height of different wearers.

Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the present invention Under, various improvement can be carried out to it and component therein can be replaced with equivalent.Especially, to be rushed as long as there is no structures Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited in texts Disclosed in specific embodiment, but all technical solutions including falling within the scope of the appended claims.

Claims (8)

1. a kind of face shield assembly, including:
Frame is provided with the first gas outlet;
Forehead supports are provided with the second gas outlet;
The frame includes first connecting portion, and the forehead supports include the second connecting portion hinged with the first connecting portion;
Conducting element, including coordinate with first gas outlet first end, with second gas outlet cooperation second end and The passage that the second end is penetrated into from the first end is formed, the passage connects first gas outlet and the second outlet Mouthful;
The conducting element is elastic component, and when forehead supports are swung towards close to wearer's forehead, forehead supports can compress water conservancy diversion Part brings it about flexible deformation;
Intake interface is provided on the frame.
2. face shield assembly according to claim 1, which is characterized in that the axis of first gas outlet and the air inlet connecting Angle is formed between the axis of mouth, the exhaust passage formed by the first gas outlet, the passage of conducting element and the second gas outlet Discharge directions and the airintake direction of face shield assembly be formed with angle α, angle α is between 30 ° to 60 °.
3. face shield assembly according to claim 2, which is characterized in that the first connecting portion be the intake interface, institute Stating second connecting portion includes the connector sleeve being fixedly installed on the forehead supports, and the connector sleeve is sheathed on the intake interface It is interior and with the intake interface ball-joint.
4. face shield assembly according to claim 1, which is characterized in that second gas outlet is arranged to sieve pore, described The second end of conducting element is connected with the forehead supports, and all the sieve pore is connected with the passage.
5. face shield assembly according to claim 4, which is characterized in that mounting hole, institute are additionally provided on the forehead supports It states mounting hole to set around all sieve pores, the second end of the conducting element passes through the mounting hole and the forehead supports phase Connection.
6. face shield assembly according to claim 1, which is characterized in that the passage is close to the second end of the conducting element Part is arranged to sieve pore, and all the sieve pore is connected with second gas outlet.
7. face shield assembly according to claim 1, which is characterized in that the first end of the conducting element and the frame are removable It is fixedly connected with unloading;The second end of the conducting element is removably secured with the forehead supports and is connected.
8. face shield assembly according to claim 7, it is characterised in that:
Second gas outlet is arranged to sieve pore, is provided on the forehead supports around the sieve pore and prolonged towards the frame The pillar for the hollow form stretched;
The pillar is provided with peripheral flange on the end away from the forehead supports surface, and the conducting element is close to second end It is provided on the channel inner surface and the matched buckling groove of the peripheral flange.
CN201510351032.0A 2015-06-23 2015-06-23 A kind of face shield assembly CN105079933B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510351032.0A CN105079933B (en) 2015-06-23 2015-06-23 A kind of face shield assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510351032.0A CN105079933B (en) 2015-06-23 2015-06-23 A kind of face shield assembly
PCT/CN2016/070621 WO2016206364A1 (en) 2015-06-23 2016-01-12 Face mask assembly

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CN105079933A CN105079933A (en) 2015-11-25
CN105079933B true CN105079933B (en) 2018-05-29

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