CN112337001A - Convenient-to-clamp gas mask - Google Patents
Convenient-to-clamp gas mask Download PDFInfo
- Publication number
- CN112337001A CN112337001A CN202011260586.7A CN202011260586A CN112337001A CN 112337001 A CN112337001 A CN 112337001A CN 202011260586 A CN202011260586 A CN 202011260586A CN 112337001 A CN112337001 A CN 112337001A
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- arc
- shaped
- clamping
- sliding
- mask
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
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- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention relates to a gas mask, in particular to a gas mask convenient to clamp. The utility model provides a can make things convenient for people to take gas mask more, be difficult to not hard up, can prevent that people from inhaling impurity such as harmful gas or dust, the convenient chucking's of factor of safety height gas mask. A respirator that facilitates gripping, comprising: a face mask; the filter cylinder is rotatably arranged on the mask; the fixing component is arranged on the mask and is fixed in a rotating mode; and the clamping assembly is arranged on the mask and is used for clamping in a sliding mode. According to the invention, the mask can be better clamped through the fixing component, the arc-shaped plate can be clamped through the clamping component, the mask is further fixed, the arc-shaped clamping plate does not need to be pulled manually through the third spring any more, a large amount of manpower is saved, and the second clamping rod does not need to be pulled manually through the contact plate and the first wedge block when the device is used.
Description
Technical Field
The invention relates to a gas mask, in particular to a gas mask convenient to clamp.
Background
The gas mask is a personal labor protection article, is also a single-soldier protection article, is worn on the head, prevents the personal protection equipment protection mask damaged by toxic substances such as poison gas, bacteria, harmful gas and the like, is mainly used in the fields of petroleum, chemical industry, mines, metallurgy and the like, and can better protect the respiratory system of people in cities with serious haze.
At present, when the existing gas mask is used, people need to wear the gas mask with the help of others, and need consume large manpower, so that the gas mask is inconvenient for people to use.
Therefore, it is necessary to develop a convenient-to-clamp respirator which can bring the respirator more conveniently, is not easy to loosen, can prevent people from inhaling harmful gas or dust and other impurities, and has high safety factor to solve the problems.
Disclosure of Invention
In order to overcome the defects that when the gas mask is worn, the gas mask is easy to loosen, people are easy to inhale impurities such as harmful gas or dust and the like, and the safety coefficient is not high, the invention has the technical problems that: the utility model provides a can make things convenient for people to take gas mask more, be difficult to not hard up, can prevent that people from inhaling impurity such as harmful gas or dust, the convenient chucking's of factor of safety height gas mask.
A respirator that facilitates gripping, comprising: a face mask; the filter cylinder is rotatably arranged on the mask; the fixing component is arranged on the mask and is fixed in a rotating mode; and the clamping assembly is arranged on the mask and is used for clamping in a sliding mode.
Further illustratively, the fixing assembly includes: at least two arc plates are rotatably arranged on the face mask; the arc cardboard has all opened the arc wall on the arc, and the arc cardboard is two at least, and the equal slidingtype of arc cardboard is installed in the arc wall.
Further illustratively, the clamping assembly includes: at least two first guide sleeves are arranged on the mask; at least two first clamping rods are arranged and are arranged in the first guide sleeve in a sliding manner; the first springs are at least two and are arranged between the first clamping rod and the first guide sleeve, the arc-shaped plate is provided with clamping grooves, and the clamping grooves are matched with the first clamping rod.
Further, the method also comprises the following steps: at least two second guide sleeves are arranged on the arc-shaped plate; at least two second clamping rods are arranged in the second guide sleeve in a sliding manner, grooves are formed in the arc-shaped clamping plate and the arc-shaped plate, and the grooves are matched with the second clamping rods; at least two second springs are arranged and are arranged between the second clamping rod and the second guide sleeve; and at least two third springs are arranged and are arranged between the arc-shaped groove and the arc-shaped clamping plate.
Further, the method also comprises the following steps: at least two third guide sleeves are arranged on the arc-shaped plate; at least two sliding rods are arranged and are arranged in the third guide sleeve in a sliding manner; at least two fourth springs are arranged and are arranged between the sliding rod and the third guide sleeve; at least two contact plates are arranged between the two sliding rods; the first wedge blocks are at least two and are arranged on the second clamping rod, and the first wedge blocks are matched with the contact plate.
Further, the method also comprises the following steps: the two arc-shaped mounting plates are mounted on the face mask; the earmuffs are two and are all installed on the arc-shaped mounting plate.
Further, the method also comprises the following steps: the sliding blocks are all provided with arc-shaped sliding grooves and are arranged on the arc-shaped mounting plate in a sliding manner, and wedge-shaped grooves are formed in the sliding blocks; two connecting rods are arranged on the sliding block in a rotating mode, and the tail ends of the connecting rods are connected with the face mask in a rotating mode; the two wedge-shaped clamping blocks are arranged in the square sliding groove in a sliding manner; the two fifth springs are arranged between the wedge-shaped fixture block and the square sliding groove; two pushing blocks are arranged and are mounted on the wedge-shaped fixture block.
Further, the method also comprises the following steps: at least two fourth guide sleeves are arranged on the mask; at least two special-shaped rods are arranged and are arranged in the fourth guide sleeve in a sliding manner; at least two sixth springs are arranged and are arranged between the special-shaped rod and the fourth guide sleeve; the second wedge, the second wedge is two at least, all installs on the cartridge filter, and the second wedge all cooperates with heterotypic pole.
The invention has the beneficial effects that: the invention can better clamp the face mask through the fixing component, is more convenient for people to use, can clamp the arc-shaped plate through the clamping component, further fixes the face mask, is more convenient for people to use, does not need to manually pull the arc-shaped clamping plate through the third spring any more, saves a great deal of manpower, improves the working efficiency of people, does not need to manually pull the second clamping rod when using the device through the contact plate and the first wedge block, saves a great deal of manpower, improves the working efficiency of people, can protect the ears of people through the ear cover, improves the safety factor of the device, is more convenient for people to use, can fix the arc-shaped mounting plate through the wedge-shaped clamping block, prevents the arc-shaped mounting plate from loosening when using, is more convenient for people to use, does not need to manually pull the first clamping rod one by one after using the device through the second wedge block and the special-shaped rod, a large amount of manpower is saved, and the working efficiency of people is improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the fixing assembly of the present invention.
Fig. 3 is a schematic perspective view of a portion of the clamping assembly of the present invention.
FIG. 4 is a schematic view of a first partial body structure according to the present invention.
Fig. 5 is an enlarged perspective view of part a of the present invention.
FIG. 6 is a schematic view of a second partial body structure according to the present invention.
Fig. 7 is an enlarged perspective view of part B of the present invention.
Reference numbers in the drawings: 1: face mask, 2: a filter cartridge, 3: fixing assembly, 31: arc plate, 32: arc-shaped groove, 33: arc cardboard, 4: clamping assembly, 41: first guide bush, 42: first catch lever, 43: first spring, 44: a card slot, 5: second guide bush, 6: second jamming rod, 7: second spring, 8: groove, 81: third spring, 9: third guide sleeve, 10: slide bar, 11: fourth spring, 12: contact plate, 13: first wedge block, 14: arc mounting panel, 15: earmuffs, 16: arc spout, 17: slider, 18: wedge groove, 19: connecting rod, 191: square chute, 192: wedge-shaped latch, 193: fifth spring, 194: push block, 20: fourth guide bush, 201: profile bar, 202: sixth spring, 203: a second wedge block.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for completeness and fully convey the scope of the invention to the skilled person.
Example 1
A respirator convenient for clamping is disclosed, as shown in figure 1, and comprises a face mask 1, a filter cartridge 2, a fixing component 3 and a clamping component 4, wherein the filter cartridge 2 is rotatably arranged on the lower part of the front side of the face mask 1, the fixing component 3 fixed in a rotating mode is arranged on the face mask 1, and the clamping component 4 clamped in a sliding mode is arranged on the face mask 1.
When using the device, the staff overlaps 1 cover of face guard to the face, and the back is good to overlap, fixes face guard 1 through fixed subassembly 3, and fixed completion back presss from both sides tightly through clamping component 4, uses the completion back, and the staff loosens clamping component 4, loosens fixed subassembly 3 afterwards, accomplishes the back, takes off face guard 1, so, makes things convenient for people to use more.
As shown in fig. 1 and 2, the fixing assembly 3 includes an arc plate 31 and an arc clamping plate 33, the upper and lower portions of the left and right sides of the mask 1 are rotatably provided with the arc plate 31, the arc plate 31 is provided with an arc groove 32, and the arc clamping plate 33 is slidably provided in the arc groove 32.
When using the device, the staff overlaps 1 cover of face guard to the face, after the completion, staff outwards stimulates arc cardboard 33, then backward rotation arc 31, arc cardboard 33 rotates backward along with it, afterwards, press from both sides tight 1 face guard through clamping component 4, after the use is accomplished, staff loosens clamping component 4, afterwards, forward rotation arc 31, arc cardboard 33 rotates forward along with it, afterwards, the staff takes off 1 face guard, so, can be better with 1 chucking of face guard, make things convenient for people to use more.
As shown in fig. 1, fig. 2, fig. 3 and fig. 6, the clamping assembly 4 includes a first guide sleeve 41, a first clamping rod 42 and a first spring 43, the first guide sleeve 41 is welded to the upper portion and the lower portion of the left and right sides of the mask 1, the first clamping rod 42 is slidably arranged in the first guide sleeve 41, the first spring 43 is wound between the first clamping rod 42 and the first guide sleeve 41, the arc plate 31 is provided with a clamping groove 44, and the clamping groove 44 is matched with the first clamping rod 42.
When the device is used, when the arc plate 31 rotates backwards to be in contact with the first clamping rod 42, the arc plate 31 rotates backwards to push the first clamping rod 42 to slide outwards in the first guide sleeve 41, the first spring 43 is compressed, when the arc plate 31 rotates backwards to be matched with the first clamping rod 42, the first clamping rod 42 slides inwards to be clamped into the clamping groove 44 under the reset action of the first spring 43, after the device is used, a worker pulls the first clamping rod 42 outwards, the first spring 43 is compressed, at this time, the first clamping rod 42 is not clamped into the clamping groove 44, then the worker rotates the arc plate 31 forwards, then the first clamping rod 42 is released, and the first clamping rod 42 slides inwards to reset under the reset action of the first spring 43, so that the arc plate 31 can be clamped, the mask 1 is further fixed, and the use of people is facilitated.
Example 2
On the basis of embodiment 1, as shown in fig. 1 and fig. 2, the device further comprises a second guide sleeve 5, a second clamping rod 6, a second spring 7 and a third spring 81, the arc-shaped plate 31 is welded with the second guide sleeve 5, the second clamping rod 6 is arranged in the second guide sleeve 5 in a sliding manner, the second spring 7 is wound between the second clamping rod 6 and the second guide sleeve 5, grooves 8 are formed in the arc-shaped clamping plate 33 and the arc-shaped plate 31, the grooves 8 are matched with the second clamping rod 6, and the third spring 81 is connected between the arc-shaped groove 32 and the arc-shaped clamping plate 33.
When the device is used, a worker pulls the second clamping rod 6 to slide outwards in the second guide sleeve 5, the two grooves 8 are overlapped in the initial state, the worker pulls the second clamping rod 6 to slide outwards in the second guide sleeve 5, the second spring 7 is stretched, at this time, the second clamping rod 6 is not clamped in the grooves 8 any more, the arc-shaped clamping plate 33 slides outwards in the arc-shaped groove 32 under the reset action of the first spring 43, then, the second clamping rod 6 is released, the second clamping rod 6 slides downwards along with the second clamping rod 6 to be reset and clamped in the grooves 8 of the arc-shaped plate 31 under the reset action of the second spring 7, after the device is used, the worker pulls the second clamping rod 6 outwards, the second spring 7 is stretched, then, the arc-shaped clamping plate 33 is pushed inwards to slide inwards, after the use, the second clamping rod 6 is released, the second clamping rod 6 slides inwards to be reset into the grooves 8 under the reset action of the second spring 7, so, no longer need through artifical pulling arc cardboard 33, saved a large amount of manpowers, improved people's work efficiency.
On the basis of the embodiment 1, as shown in fig. 1 and 2, the device further includes a third guide sleeve 9, a sliding rod 10, a fourth spring 11, a contact plate 12 and a first wedge block 13, the third guide sleeve 9 is welded on both upper and lower sides of the arc-shaped plate 31, the sliding rod 10 is slidably arranged in the third guide sleeve 9, the fourth spring 11 is wound between the sliding rod 10 and the third guide sleeve 9, the contact plate 12 is arranged between the upper and lower sliding rods 10, the first wedge block 13 is welded on the second clamping rod 6, and the first wedge block 13 is matched with the contact plate 12.
When the device is used, a worker rotates the arc-shaped plate 31 inwards, the contact plate 12 rotates inwards along with the arc-shaped plate, when the contact plate 12 rotates inwards to be in contact with the head of the person, the arc-shaped plate 31 continues to rotate inwards, the contact plate 12 is pushed to move outwards, the slide rod 10 slides outwards along with the slide plate in the third guide sleeve 9, the fourth spring 11 is compressed along with the fourth spring, when the contact plate 12 moves outwards to be in contact with the first wedge-shaped block 13, the contact plate 12 moves outwards to push the first wedge-shaped block 13 to move outwards, the second clamping rod 6 does not block in the groove 8 along with the outward sliding, and therefore when the device is used, the second clamping rod 6 does not need to be pulled manually, a large amount of manpower is saved, and the working efficiency of the person is improved.
On the basis of embodiment 1, as shown in fig. 1, 4 and 5, the helmet further comprises an arc-shaped mounting plate 14 and earmuffs 15, the arc-shaped mounting plate 14 is rotatably arranged on the left side and the right side of the upper portion of the face mask 1, and the earmuffs 15 are arranged on the outer sides of the arc-shaped mounting plate 14.
When using the device, the staff backward rotates arc mounting panel 14, and ear muff 15 rotates backward thereupon, so, can protect people's ear, improved the factor of safety of device, make things convenient for people to use more.
On the basis of embodiment 1, as shown in fig. 1, 4 and 5, the mask further includes a sliding block 17, a connecting rod 19, a wedge-shaped fixture block 192, a fifth spring 193 and a pushing block 194, an arc-shaped sliding groove 16 is formed in the arc-shaped mounting plate 14, the sliding block 17 is arranged in the arc-shaped sliding groove 16 in a sliding manner, wedge-shaped grooves 18 are formed in the sliding block 17, the connecting rod 19 is arranged on the sliding block 17 in a rotating manner, the tail end of the connecting rod 19 is connected with the mask 1 in a rotating manner, square sliding grooves 191 are formed in the arc-shaped mounting plate 14, the wedge-shaped fixture block 192 is arranged in the square sliding groove 191 in a sliding manner, the fifth spring 193 is connected between the wedge-shaped fixture block 192 and the square sliding.
When the device is used, a worker rotates the arc-shaped mounting plate 14 backwards, the slide block 17 moves inwards along with the arc-shaped mounting plate to drive the connecting rod 19 to rotate, the slide block 17 slides inwards in the arc-shaped sliding groove 16 while moving inwards, when the slide block 17 slides inwards to be in contact with the wedge-shaped fixture block 192, the slide block 17 slides inwards to push the wedge-shaped fixture block 192 to slide inwards in the square-shaped sliding groove 191, the fifth spring 193 is compressed, after the slide block 17 slides inwards to be matched with the wedge-shaped fixture block 192, the wedge-shaped fixture block 192 slides outwards along with the slide block 192 to reset and be clamped in the wedge-shaped groove 18 under the action of the reset of the fifth spring 193, after the use is finished, the worker pushes the push block 194 to move upwards, the wedge-shaped fixture block 192 moves upwards along with the slide block to be not clamped in the wedge-shaped groove 18, then, the arc-shaped mounting plate 14 rotates forwards along with the, the wedge-shaped fixture block 192 slides outwards to reset, so that the arc-shaped mounting plate 14 can be fixed, the arc-shaped mounting plate 14 is prevented from loosening in use, and the use of people is facilitated.
On the basis of embodiment 1, as shown in fig. 1, 3, 6 and 7, the mask further includes a fourth guide sleeve 20, a special-shaped rod 201, a sixth spring 202 and a second wedge block 203, the fourth guide sleeve 20 is welded to the upper and lower portions of the front side of the mask 1, the special-shaped rod 201 is slidably arranged in the fourth guide sleeve 20, the sixth spring 202 is wound between the special-shaped rod 201 and the fourth guide sleeve 20, the second wedge block 203 is welded to the upper and lower portions of the rear side of the filter cartridge 2, and the second wedge block 203 is matched with the special-shaped rod 201.
After using the device, the staff rotates the cartridge filter 2 and drives the second wedge block 203 to rotate, when the second wedge block 203 rotates to contact with the special-shaped rod 201, the second wedge block 203 rotates and pushes the special-shaped rod 201 to slide outwards in the fourth guide sleeve 20 to drive the first clamping rod 42 to slide outwards, the sixth spring 202 is compressed accordingly, and thus, after using the device, the first clamping rod 42 does not need to be pulled one by one manually, a large amount of manpower is saved, and the work efficiency of people is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A respirator convenient to clamp is characterized by comprising:
a face mask (1);
the filter cartridge (2) is rotatably arranged on the mask (1);
the fixing component (3) is arranged on the mask (1) and is fixed in a rotating mode;
and the clamping component (4) is arranged on the mask (1) and is used for clamping in a sliding mode.
2. A tamper-evident respirator as claimed in claim 1, wherein the retaining member (3) comprises:
at least two arc plates (31) are arranged on the face mask (1) in a rotating mode;
arc cardboard (33), arc wall (32) have all been opened on arc cardboard (31), and arc cardboard (33) are two at least, and arc cardboard (33) all are slided type and are installed in arc wall (32).
3. A tamper-evident respirator as claimed in claim 2, wherein the clip assembly (4) comprises:
at least two first guide sleeves (41), wherein the first guide sleeves (41) are arranged on the face mask (1);
at least two first clamping rods (42) are arranged, and are arranged in the first guide sleeve (41) in a sliding manner;
first spring (43), first spring (43) are two at least, all install between first kelly (42) and first guide pin bushing (41), have all opened draw-in groove (44) on arc (31), draw-in groove (44) all with first kelly (42) cooperation.
4. A tamper-evident respirator as claimed in claim 3, further comprising:
at least two second guide sleeves (5) are arranged and are arranged on the arc-shaped plate (31);
at least two second clamping rods (6) are arranged in the second guide sleeve (5) in a sliding manner, grooves (8) are formed in the arc clamping plates (33) and the arc plates (31), and the grooves (8) are matched with the second clamping rods (6);
at least two second springs (7) are arranged and are arranged between the second clamping rod (6) and the second guide sleeve (5);
and at least two third springs (81) are arranged, and are arranged between the arc-shaped groove (32) and the arc-shaped clamping plate (33).
5. A tamper-evident respirator as claimed in claim 4, further comprising:
at least two third guide sleeves (9) are arranged and are arranged on the arc-shaped plate (31);
at least two sliding rods (10) are arranged, and the sliding rods (10) are arranged in the third guide sleeve (9) in a sliding manner;
at least two fourth springs (11) are arranged and are arranged between the sliding rod (10) and the third guide sleeve (9);
at least two contact plates (12) are arranged, and the two contact plates (12) are arranged between the two sliding rods (10); the number of the first wedge-shaped blocks (13) is at least two, the first wedge-shaped blocks (13) are all installed on the second clamping rod (6), and the first wedge-shaped blocks (13) are all matched with the contact plate (12).
6. A tamper-evident respirator as claimed in claim 5, further comprising:
the two arc-shaped mounting plates (14) are arranged on the face mask (1);
earmuffs (15), earmuff (15) are two, all install on arc mounting panel (14).
7. A tamper-evident respirator as claimed in claim 6, further comprising:
the arc-shaped mounting plates (14) are provided with arc-shaped sliding grooves (16), the number of the sliding blocks (17) is two, the sliding blocks are arranged on the arc-shaped sliding grooves (16) in a sliding mode, and the sliding blocks (17) are provided with wedge-shaped grooves (18);
two connecting rods (19) are arranged, the two connecting rods (19) are rotatably mounted on the sliding block (17), and the tail ends of the two connecting rods (19) are rotatably connected with the face mask (1);
two wedge-shaped clamping blocks (192) are arranged, and are all installed in the square sliding groove (191) in a sliding mode;
two fifth springs (193), wherein the two fifth springs (193) are arranged between the wedge-shaped fixture block (192) and the square sliding groove (191);
two pushing blocks (194) are arranged on the wedge-shaped clamping block (192).
8. A tamper-evident respirator as claimed in claim 7, further comprising:
at least two fourth guide sleeves (20) are arranged on the face mask (1);
at least two special-shaped rods (201), wherein the at least two special-shaped rods (201) are arranged in the fourth guide sleeve (20) in a sliding manner;
at least two sixth springs (202), wherein the at least two sixth springs (202) are arranged between the special-shaped rod (201) and the fourth guide sleeve (20);
the second wedge blocks (203) are at least two, the second wedge blocks (203) are all installed on the filter cylinder (2), and the second wedge blocks (203) are matched with the special-shaped rods (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011260586.7A CN112337001B (en) | 2020-11-12 | 2020-11-12 | Convenient-to-clamp gas mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011260586.7A CN112337001B (en) | 2020-11-12 | 2020-11-12 | Convenient-to-clamp gas mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112337001A true CN112337001A (en) | 2021-02-09 |
| CN112337001B CN112337001B (en) | 2021-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011260586.7A Active CN112337001B (en) | 2020-11-12 | 2020-11-12 | Convenient-to-clamp gas mask |
Country Status (1)
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| CN (1) | CN112337001B (en) |
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| CN207285290U (en) * | 2017-09-21 | 2018-05-01 | 蒲会山 | A kind of down-hole coal excavation protective face mask |
| CN207445378U (en) * | 2017-10-31 | 2018-06-05 | 江苏高玛防护器材有限公司 | A kind of easy-to-dismount gas defense semi-respirator |
| CN207768935U (en) * | 2017-11-29 | 2018-08-28 | 沙琪 | A kind of fire resistant clothes |
| CN108434573A (en) * | 2018-03-20 | 2018-08-24 | 东营市人民医院 | A kind of Multifunctional anesthetic mask |
| CN209931611U (en) * | 2018-12-29 | 2020-01-14 | 南京创式光盐信息科技有限公司 | Flip formula helmet convenient to open face guard |
| CN210044649U (en) * | 2019-01-15 | 2020-02-11 | 王利江 | Medical breathing mask |
| CN109892738A (en) * | 2019-03-13 | 2019-06-18 | 程文帅 | A kind of construction site multi-purpose type helmet |
| CN209749922U (en) * | 2019-04-08 | 2019-12-10 | 厦门百安兴新材料有限公司 | Protective mask is used in production of epoxy sand base brick that permeates water |
| CN210331411U (en) * | 2019-06-10 | 2020-04-17 | 石家庄丰环环保设备有限公司 | A safety face guard for chemical industry |
| CN211611212U (en) * | 2019-07-26 | 2020-10-02 | 郑州儿童医院 | A quick wearing formula oxygen mask for paediatrics emergency call |
| CN210672224U (en) * | 2019-07-30 | 2020-06-05 | 河南东晴科技有限公司 | Anti-riot helmet |
| CN110558651A (en) * | 2019-08-02 | 2019-12-13 | 詹雯清 | Engineering multipurpose protective mask |
| CN210933491U (en) * | 2019-08-02 | 2020-07-07 | 安徽钟南防化科技有限公司 | Canister cover connecting structure for filtering poison |
| CN210276065U (en) * | 2019-08-21 | 2020-04-10 | 京山诺安塑胶有限公司 | Safety helmet with transparent face mask |
| CN211383309U (en) * | 2019-10-14 | 2020-09-01 | 袁桂洪 | Disposable oxygen inhalation mask |
| CN211357219U (en) * | 2019-11-27 | 2020-08-28 | 中国医学科学院北京协和医院 | Novel atomizing mask |
| CN211882344U (en) * | 2020-03-22 | 2020-11-10 | 陈碧波 | Protective mask |
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| CN112337001B (en) | 2021-08-13 |
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