CN205912938U - Dust mask - Google Patents
Dust mask Download PDFInfo
- Publication number
- CN205912938U CN205912938U CN201620771979.7U CN201620771979U CN205912938U CN 205912938 U CN205912938 U CN 205912938U CN 201620771979 U CN201620771979 U CN 201620771979U CN 205912938 U CN205912938 U CN 205912938U
- Authority
- CN
- China
- Prior art keywords
- pivot
- articulated
- connector
- elastic cord
- cylinder
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides a dust mask, dust mask includes the face guard, filtering component and elastic cord, the elastic cord is connected with the both sides marginal facies of face guard, the face guard is including the cover body and coupling assembling, coupling assembling sets up in the side reason of the cover body upward, coupling assembling includes connecting piece and fastener, the connecting piece includes the body, fastener detachably sets up in the one end of body, filtering component included filter cartridge and set up in the pin joint piece of crossing filter cartridge one side edge, the pin joint piece is with the pin joint of fastener looks so that cross the filter cartridge detachably pin joint on the connecting piece. Above -mentioned dust mask uses and dismantles the convenience.
Description
Technical field
This utility model is related to a kind of mask, and particularly one kind has the dismounting convenient anti-dust respirator of filter cartridge.
Background technology
Some workshops are more severe, such as a few thing place such as breeze processing, cement handling, and in the air has
The dust of higher concentration, the health of workman in serious harm.Industrial anti-dust mask becomes workman's indispensability in above-mentioned working space
Protective articless.Both sides on anti-dust respirator can be realized changing filter cartridge by arranging dismountable snap fastener at present, but most
Snap fastener is to be fixed by engaging by force, and it can not carry out spinning movement or fastness is unstable, and is not easily assembled, tears open
Unload.
Utility model content
In view of above-mentioned condition is it is necessary to provide a kind of dismounting assembling and anti-dust respirator easy to use.
A kind of anti-dust respirator, this anti-dust respirator includes mask, filter assemblies and elastic cord, this elastic cord and the two of this mask
Lateral edges are connected, and this mask includes cover body and coupling assembly, and this coupling assembly is arranged on the lateral edges of this cover body, this connection
Assembly includes connector and fastener, and this connector includes body, and fastener is removable installed in one end of this body, this mistake
The filter assembly articulated part that includes filter cartridge and be arranged at this filter cartridge one lateral edges, this articulated part and this fastener be articulated so that
This filter cartridge is removably articulated on this connector.
Further, this connector also includes pivot connected slot, articulated section and slot, this pivot connected slot be opened in this body away from
On one lateral edges of this cover body, this articulated section is arranged at one end of this pivot connected slot, and this slot is opened in the one side of this body,
This fastener includes plate body and holding section, and this holding section is arranged at the side of this plate body, and this articulated part includes cylinder, and this cylinder is received
It is dissolved in the pivot connected slot of this connector, this holding section is sticked in this slot to fix this fastener, the opposite end of this cylinder
It is articulated so that this filter cartridge is removably articulated on this connector with this articulated section and this fastener respectively.
Further, this articulated section offers pivoted hole, and this fastener also includes drive-connecting shaft, and this articulated part also includes pivot
And pivot hole, this pivot is arranged at one end of this cylinder, and this pivot hole is opened on the end face of the other end of this cylinder, and this pivot can
It is articulated in this pivot joint in the hole, this drive-connecting shaft is articulated in this pivot hole.
Further, this articulated section arranges drive-connecting shaft, this plate body opens up pivoted hole, the pivot on this cylinder and this plate
Pivot hole pivot joint on pivoted hole pivot joint on body, the drive-connecting shaft on this articulated section and this cylinder.
Further, the opposite end of this cylinder is respectively provided with pivot, and this articulated section and this plate body all open up pivoted hole,
Pivoted hole pivot joint on pivot on this cylinder and this articulated section and this plate body.
Further, the opposite end of this cylinder opens up pivoted hole respectively, and this articulated section and this plate body are all provided with pivot
Pivot on axle, this articulated section and this plate body and the pivoted hole pivot joint on this cylinder.
Further, this cover body offers at least two draw-in grooves, and this mask also includes black box, and this black box includes
Support member, sealing member and at least two grabs, this at least two grab is arranged at the side of this support member, and this sealing member is arranged at
The opposite side of this support member, this at least two grab is sticked in this at least two draw-in groove so that this support member is removably secured
On this cover body.
Further, this cover body is further opened with groove of taking a breath, and this connector also includes venting flow path, this venting flow path through
This body and being connected so that air enters in this ventilation groove via the filter cartridge of this filter assemblies with this ventilation groove.
Further, this connector also includes accepting groove and fixed part, and this accepting groove is opened in this body and this pivot connected slot
To house this fastener on adjacent lateral edges, this fixed part is arranged on the one side of this body to connect this elastic cord
Free end.
Further, this elastic cord includes elastic cord and lower elastic cord, and on this, elastic cord is worn on the head of user,
This lower elastic cord is worn on the cervical region of the user face so that mask to fit in user, and this anti-dust respirator also includes group of raising one's voice
Part, this loudspeaking component include receptor and with this receptor be electrically connected with speaker, this receptor be arranged at this connector
Lateral edges and be located in this connector, this receptor is used for receiving the sound of user, and it is elastic that this speaker is arranged at this
On the upper elastic cord of band.
Above-mentioned anti-dust respirator makes the filter cartridge removably pivot joint of filter assemblies by the fastener being arranged on connector
Consequently facilitating the replacing of filter cartridge and regulation on connector.
Brief description
Fig. 1 is the schematic perspective view of anti-dust respirator in this utility model one embodiment.
Fig. 2 is the schematic perspective view at another visual angle of the anti-dust respirator shown in Fig. 1.
Fig. 3 is the decomposing schematic representation of mask, black box and the filter assemblies of the anti-dust respirator shown in Fig. 1.
Fig. 4 is the schematic diagram at another visual angle of the mask shown in Fig. 1, black box and filter assemblies.
Main element symbol description
Anti-dust respirator | 100 |
Mask | 10 |
Cover body | 11 |
Ventilation groove | 111 |
Draw-in groove | 112 |
Coupling assembly | 12 |
Connector | 121 |
Body | 1211 |
Pivot connected slot | 1212 |
Articulated section | 1213 |
Venting flow path | 1214 |
Accepting groove | 1215 |
Slot | 1216 |
Fixed part | 1217 |
Pivoted hole | 1218 |
Fastener | 122 |
Plate body | 1221 |
Drive-connecting shaft | 1222 |
Holding section | 1223 |
Black box | 13 |
Support member | 131 |
Through hole | 1311 |
Grab | 132 |
Sealing member | 133 |
Filter assemblies | 20 |
Filter cartridge | 21 |
Articulated part | 22 |
Cylinder | 221 |
Pivot | 222 |
Pivot hole | 223 |
Loudspeaking component | 30 |
Receptor | 31 |
Speaker | 32 |
Elastic cord | 40 |
Upper elastic cord | 41 |
Lower elastic cord | 42 |
Following specific embodiment will further illustrate this utility model in conjunction with above-mentioned accompanying drawing.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole realities
Apply example.Based on the embodiment in this utility model, those of ordinary skill in the art institute under the premise of not making creative work
The every other embodiment obtaining, broadly falls into the scope of this utility model protection.
It should be noted that when an assembly is considered as " connection " another assembly, it can make to be directly connected to separately
One assembly or may be simultaneously present the assembly being centrally located.When an assembly is considered as " being arranged on " another assembly,
It can make to be set directly on another assembly or may be simultaneously present the assembly being centrally located.
Unless otherwise defined, all of technology used herein and scientific terminology are led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.In term used in the description of the present utility model it is simply herein
The purpose of description specific embodiment is it is not intended that in limiting this utility model.Term as used herein " and/or " include
The arbitrary and all of combination of one or more related Listed Items.
A kind of anti-dust respirator 100 providing please refer to Fig. 1, this utility model.Anti-dust respirator 100 include mask 10,
Two filter assemblies 20, loudspeaking component 30 and elastic cord 40.Two filter assemblies 20 are respectively arranged at the two side ends of mask 10.Pine
Taut band 40 is connected with the both sides of the edge (sign) of mask 10.In the present embodiment, elastic cord 40 include elastic cord 41 and under
Elastic cord 42.Upper elastic cord 41 is worn on the head of user, and lower elastic cord 42 is worn on the cervical region of user with by mask 10
Fit in the face of user.
Please refer to Fig. 2 to Fig. 4, mask 10 includes 11, two coupling assemblies 12 of cover body and black box 13.Cover body 11
It is in substantially v shape, it offers ventilation groove 111 and at least two draw-in grooves 112.Ventilation groove 111 is located at the substantial middle position of cover body 11
Put.At least two draw-in grooves 112 are uniformly distributed in around ventilation groove 111.In the present embodiment, the quantity of draw-in groove 112 is three, but not
It is limited to this.
Two coupling assemblies 12 are respectively arranged at the both sides of cover body 11.Each coupling assembly 12 includes connector 121 and card
Component 122.Connector 121 include body 1211, pivot connected slot 1212, articulated section 1213, venting flow path 1214, accepting groove 1215,
Slot 1216 and fixed part 1217.Pivot connected slot 1212 is opened in lateral edges (sign) away from cover body 11 for the body 1211.
Pivot connected slot 1212 is in substantially semi-cylindrical.Articulated section 1213 is arranged at one end of pivot connected slot 1212, articulated section 1213 substantially in
Centre position offers pivoted hole 1218.Venting flow path 1214 is opened on the side wall (sign) of pivot connected slot 1212.Venting flow path
1214 are connected so that air enters in ventilation groove 111 via filter assemblies 20 through body 1211 and with ventilation groove 111.Receive
Tank 1215 is opened on body 1211 lateral edges (sign) adjacent with pivot connected slot 1212 to house fastener 122.Card
Close groove 1216 and be opened in the one side (sign) of body 1211 above and near accepting groove 1215.Fixed part 1217 is arranged at body
To connect the upper elastic cord 41 of elastic cord 40 and the free end of lower elastic cord 42 on 1211 one side (sign).Fastener
122 is substantially plate-shaped and similar to the shape of accepting groove 1215.Fastener 122 includes plate body 1221, drive-connecting shaft 1222 and engaging
Portion 1223.Drive-connecting shaft 1222 is arranged at one end of plate body 1221 and near pivot connected slot 1212.Holding section 1223 is arranged at plate body
1221 side and be to extend and form along the side edge-perpendicular of plate body 1221.Holding section 1223 can correspond to and be sticked in slot
So that fastener 122 fixation is contained in the accepting groove 1215 of connector 121 in 1216.
Black box 13 can fit in the face of user, and it includes support member 131, at least two grabs 132 and close
Sealing 133.Support member 131 offers through hole 1311.The shape of through hole 1311 is similar to the shape of the ventilation groove 111 of cover body 11.
At least two grabs 132 are arranged at side and the edge near through hole 1311 of support member 131.At least two grabs 132 can
Correspondence is sticked in the draw-in groove 112 of cover body 11 so that support member 131 is detachably secured on cover body 11.Sealing member 133 is substantially
For oval ring-type.Sealing member 133 is removable installed in the opposite side that support member 131 is with respect to grab 132.Sealing member
To allow the air in user respiratory ventilation groove 111 on 133 mouths that can cover in user and nose.In the present embodiment, close
Sealing 133 is made up of silica gel material, but not limited to this;The quantity of grab 132 is three, but not limited to this.
The articulated part 22 that each filter assemblies 20 includes filter cartridge 21 and is arranged at filter cartridge 21 1 lateral edges (sign).
Filter cartridge 21 was used for air filtering.Articulated part 22 includes cylinder 221, pivot 222 and pivot hole 223.Cylinder 221 can rotate collecting
In the pivot connected slot 1212 of connector 121.Pivot 222 is arranged at one end of cylinder 221, and pivot 222 can be articulated in connector
In 121 pivoted hole 1218.Pivot hole 223 is opened in and is used for housing fastener on the end face (sign) of the other end of cylinder 222
122 drive-connecting shaft 1222.
Loudspeaking component 30 includes receptor 31 and the speaker 32 being electrically connected with receptor 31.Being arranged at of receptor 31
One lateral edges (sign) of connector 121 and be located at connector 121 in.Receptor 31 is used for receiving the sound of user.Raise
Sound device 32 is arranged at and adjusts preferable listened position with convenient use person on the upper elastic cord 41 of elastic cord 40.In the present embodiment, connect
Receipts device 31 is Bluetooth microphone, and speaker 32 is bone-conduction speaker, but not limited to this.
Please refer to Fig. 1 to Fig. 4, during assembling, two connectors 121 are respectively arranged at the both sides of cover body 11.Will be close
Sealing 133 is arranged at the side of support member 131, and by least two grab 132 correspondence be sticked in the draw-in groove 112 of cover body 11 with
The support member 131 with sealing member 133 is made to be fixed on cover body 11.The pivot 222 of articulated part 22 is articulated in connector 121
In pivoted hole 1218, and cylinder 221 is contained in the pivot connected slot 1212 of connector 121.The plate body 1221 of fastener 122 is received
It is dissolved in accepting groove 1215, and the drive-connecting shaft 1222 of fastener 122 is articulated in the pivot hole 223 of articulated part 22 and by fastener
122 holding section 1223 is sticked in slot 1216 so that fastener 122 is fixing.By upper elastic cord 41 and lower elastic cord 42
Free end is all fixed on the fixed part 1217 of connector 121.Receptor 31 is arranged in connector 121, and by speaker 32
It is arranged on elastic cord 41 and is electrically connected with receptor 31, complete the assembling to whole anti-dust respirator 100.
When need to change sealing member 133, at least two grabs 132 are departed from least two draw-in grooves 112 thus by support member 131
Take off from cover body 11.Sealing member 133 is taken off from support member 131, and can complete to sealing according to above-mentioned assembling flow path
The replacing of part 133.When need to change filter assemblies 20, the holding section 1223 of fastener 122 is disconnected the slot of part 121
So that fastener 122 departs from accepting groove 1215 in 1216.The pivot 222 of articulated part 22 is disconnected the pivoted hole of part 121
In 1218, and cylinder 221 is disconnected in the pivot connected slot 1212 of part 121 thus taking off filter cartridge 21, and according to above-mentioned group
Dress flow process can complete the replacing to filter assemblies 20.Meanwhile, adjusted between two filter cartridges 21 by rotating filter cartridge 21
Distance, so that anti-dust respirator 100 is applied to different user.
In the present embodiment, articulated section 1213 offers pivoted hole 1218, and one end of plate body 1221 is provided with drive-connecting shaft
1222, the opposite end of cylinder 221 is respectively arranged with pivot 222 and pivot hole 223, pivot 222 and pivoted hole 1218 pivot joint, pivot joint
Axle 1222 and pivot hole 223 pivot joint, but not limited to this, such as: on articulated section 1213, drive-connecting shaft (not shown) is set, plate body 1221 is opened
If pivoted hole (not shown), pivoted hole (not shown) pivot joint on pivot on cylinder 221 222 and plate body 1221, articulated section
Drive-connecting shaft (not shown) on 1213 and pivot hole 223 pivot joint on cylinder 221, have no effect on filter cartridge 21 and are articulated in connector
On 121.
In the present embodiment, articulated section 1213 offers pivoted hole 1218, and one end of plate body 1221 is provided with drive-connecting shaft
1222, the opposite end of cylinder 221 is respectively arranged with pivot 222 and pivot hole 223, pivot 222 and pivoted hole 1218 pivot joint, pivot joint
Axle 1222 and pivot hole 223 pivot joint, but not limited to this, such as: the opposite end of cylinder 221 is respectively provided with pivot (not shown), pivot joint
All open up pivoted hole (not shown) on portion 1213 and plate body 1221, the pivot (not shown) on cylinder 221 and articulated section 1213 and
Pivoted hole (not shown) pivot joint on plate body 1221, has no effect on filter cartridge 21 and is articulated on connector 121.
In addition, similar adjustment can also be: the opposite end of cylinder 221 opens up pivoted hole (not shown), pivot joint respectively
Pivot (not shown) is all provided with portion 1213 and plate body 1221, the pivot (not shown) on articulated section 1213 and plate body 1221 with
Pivoted hole pivot joint on cylinder 221, has no effect on filter cartridge 21 and is articulated on connector 121.
In the present embodiment, elastic cord 40 includes elastic cord 41 and lower elastic cord 42, but not limited to this, lower elastic cord
42 can remove, and have no effect on the face that mask 10 fits in user.
In the present embodiment, anti-dust respirator 100 includes 10, two filter assemblies 20 of mask, loudspeaking component 30 and elastic
Band 40, but not limited to this, loudspeaking component 30 can remove, and has no effect on the use of anti-dust respirator 100.
In the present embodiment, connector 121 includes body 1211, pivot connected slot 1212, articulated section 1213, venting flow path
1214th, accepting groove 1215, slot 1216 and fixed part 1217, but not limited to this, accepting groove 1215 and fixed part 1217 are permissible
Remove, the direct fixing card of fastener 122, together on lateral edges (sign) of connector 121, has no effect on filter assemblies 20
Articulated part 22 be articulated on fastener 122.Likewise, elastic cord 40 also can be directly fixed on connector 121, its not shadow
Ring the use of elastic cord 40.
In the present embodiment, the quantity of coupling assembly 12 is two, and the quantity of filter assemblies 20 is two, two filtrations
Assembly 20 is connected with two coupling assemblies 12 respectively, but not limited to this, the quantity of filter assemblies 20 can be one, coupling assembly
12 quantity can be one, and coupling assembly 12 is arranged in the lateral edges (not shown) of cover body 11, filter assemblies 20 company of being arranged at
On connected components 12, have no effect on the use of anti-dust respirator 100.
In the present embodiment, mask 10 includes cover body 11, coupling assembly 12 and black box 13, but not limited to this, close
Sealing assembly 13 can remove, and the direct palette of cover body 11, in the face of user, has no effect on the use of anti-dust respirator 100.
In the present embodiment, connector 121 includes body 1211, pivot connected slot 1212, articulated section 1213, venting flow path
1214th, accepting groove 1215, slot 1216 and fixed part 1217, but not limited to this, such as: articulated section 1213 can remove, engaging
The quantity of part 122 is two, and two fasteners 122 are removable installed in relatively the two of the body 1211 of connector 121 respectively
On end face, articulated part 22 is pivoted directly on two fasteners 122, has no effect on articulated part 22 removable by fastener 122
It is connected to unloading on connector 121.
Above-mentioned anti-dust respirator 100 makes the filter cartridge 21 of filter assemblies 20 by the fastener 122 being arranged on connector 121
Removably it is articulated on connector 121 consequently facilitating the replacing of filter cartridge 21 and regulation.By being arranged at the card of support member 131
Hook 132 makes support member 131 be removable installed on cover body 11, consequently facilitating the replacing to sealing member 133.Meanwhile, by setting
The receptor 31 being placed on connector 121 and the speaker 32 that electrically connects with this receptor 31 are so that user is easy to language hands over
Stream, improves the usability of anti-dust respirator 100.
In addition, those skilled in the art also can do other changes in this utility model spirit, certainly, these are according to this reality
The change made of new spirit, all should be included in this utility model scope required for protection.
Claims (10)
1. a kind of anti-dust respirator, this anti-dust respirator includes mask, filter assemblies and elastic cord, the both sides of this elastic cord and this mask
Edge be connected it is characterised in that: this mask includes cover body and coupling assembly, and this coupling assembly is arranged at the lateral edges of this cover body
On, this coupling assembly includes connector and fastener, and this connector includes body, and fastener is removable installed in this body
One end, the articulated part that this filter assemblies includes filter cartridge and is arranged at this filter cartridge one lateral edges, this articulated part and this fastener
It is articulated so that this filter cartridge is removably articulated on this connector.
2. anti-dust respirator as claimed in claim 1 it is characterised in that: this connector also includes pivot connected slot, articulated section and engaging
Groove, this pivot connected slot is opened in this body away from lateral edges of this cover body, and this articulated section is arranged at one end of this pivot connected slot, should
Slot is opened in the one side of this body, and this fastener includes plate body and holding section, and this holding section is arranged at the one of this plate body
Side, this articulated part includes cylinder, and this cylinder is contained in the pivot connected slot of this connector, and this holding section is sticked in this slot with solid
This fastener fixed, the opposite end of this cylinder be articulated with this articulated section and this fastener respectively so that this filter cartridge removably
It is articulated on this connector.
3. anti-dust respirator as claimed in claim 2 it is characterised in that: this articulated section offers pivoted hole, and this fastener also wraps
Include drive-connecting shaft, this articulated part also includes pivot and pivot hole, this pivot is arranged at one end of this cylinder, this pivot hole is opened in this cylinder
The end face of the other end on, this pivot can be articulated in this pivot joint in the hole, and this drive-connecting shaft is articulated in this pivot hole.
4. anti-dust respirator as claimed in claim 3 it is characterised in that: on this articulated section arrange drive-connecting shaft, this plate body opens up
Pivot on pivoted hole pivot joint on pivoted hole, the pivot on this cylinder and this plate body, the drive-connecting shaft on this articulated section and this cylinder
Hole pivot joint.
5. anti-dust respirator as claimed in claim 3 it is characterised in that: the opposite end of this cylinder is respectively provided with pivot, this pivot
Pivoted hole is all opened up, the pivoted hole pivot joint on the pivot on this cylinder and this articulated section and this plate body on socket part and this plate body.
6. anti-dust respirator as claimed in claim 3 it is characterised in that: the opposite end of this cylinder opens up pivoted hole respectively, should
All it is provided with pivot, the pivoted hole pivot joint on the pivot on this articulated section and this plate body and this cylinder on articulated section and this plate body.
7. anti-dust respirator as claimed in claim 1 it is characterised in that: this cover body offers at least two draw-in grooves, and this mask is also
Including black box, this black box includes support member, sealing member and at least two grabs, and this at least two grab is arranged at this
The side of support member, this sealing member is arranged at the opposite side of this support member, and this at least two grab is sticked in this at least two card
So that this support member is detachably secured on this cover body in groove.
8. anti-dust respirator as claimed in claim 2 it is characterised in that: this cover body is further opened with groove of taking a breath, and this connector also wraps
Include venting flow path, this venting flow path be connected through this body and with this ventilation groove so that air via this filter assemblies mistake
Filter box enters in this ventilation groove.
9. anti-dust respirator as claimed in claim 2 it is characterised in that: this connector also includes accepting groove and fixed part, this receipts
Tank is opened on this body lateral edges adjacent with this pivot connected slot to house this fastener, and this fixed part is arranged at this body
One side on to connect the free end of this elastic cord.
10. anti-dust respirator as claimed in claim 1 it is characterised in that: this elastic cord includes elastic cord and lower elastic cord, should
Upper elastic cord is worn on the head of user, and this lower elastic cord is worn on the cervical region of user so that mask is fitted in user
Face, this anti-dust respirator also includes loudspeaking component, this loudspeaking component include receptor and with this receptor be electrically connected with raise one's voice
Device, this receptor be arranged at this connector lateral edges and be located at this connector in, this receptor is used for receiving user
Sound, this speaker is arranged on the upper elastic cord of this elastic cord.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620771979.7U CN205912938U (en) | 2016-07-21 | 2016-07-21 | Dust mask |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620771979.7U CN205912938U (en) | 2016-07-21 | 2016-07-21 | Dust mask |
Publications (1)
Publication Number | Publication Date |
---|---|
CN205912938U true CN205912938U (en) | 2017-02-01 |
Family
ID=57872614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201620771979.7U Expired - Fee Related CN205912938U (en) | 2016-07-21 | 2016-07-21 | Dust mask |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN205912938U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108851295A (en) * | 2018-09-03 | 2018-11-23 | 广州市疾病预防控制中心(广州市卫生检验中心) | The dedicated density circle of medical protective mask |
CN111317928A (en) * | 2018-12-17 | 2020-06-23 | Lg电子株式会社 | Mask device |
-
2016
- 2016-07-21 CN CN201620771979.7U patent/CN205912938U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108851295A (en) * | 2018-09-03 | 2018-11-23 | 广州市疾病预防控制中心(广州市卫生检验中心) | The dedicated density circle of medical protective mask |
CN111317928A (en) * | 2018-12-17 | 2020-06-23 | Lg电子株式会社 | Mask device |
CN111317928B (en) * | 2018-12-17 | 2021-07-20 | Lg电子株式会社 | Mask device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20170721 |
|
CF01 | Termination of patent right due to non-payment of annual fee |