CN114209146A - Effectual outdoor both shoulders knapsack of cooling - Google Patents
Effectual outdoor both shoulders knapsack of cooling Download PDFInfo
- Publication number
- CN114209146A CN114209146A CN202111573269.5A CN202111573269A CN114209146A CN 114209146 A CN114209146 A CN 114209146A CN 202111573269 A CN202111573269 A CN 202111573269A CN 114209146 A CN114209146 A CN 114209146A
- Authority
- CN
- China
- Prior art keywords
- backpack
- support frame
- knapsack
- outdoor
- water storage
- 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000007664 blowing Methods 0.000 claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims abstract 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 8
- 229910001416 lithium ion Inorganic materials 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims 3
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000008021 deposition Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
- A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
- A45F3/04—Sacks or packs carried on the body by means of two straps passing over the two shoulders
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C13/00—Details; Accessories
- A45C13/001—Accessories
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C15/00—Purses, bags, luggage or other receptacles covered by groups A45C1/00 - A45C11/00, combined with other objects or articles
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
- A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
- A45F3/04—Sacks or packs carried on the body by means of two straps passing over the two shoulders
- A45F3/08—Carrying-frames; Frames combined with sacks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Portable Outdoor Equipment (AREA)
Abstract
The invention relates to the technical field of outdoor bags and bags, in particular to an outdoor backpack with good cooling effect, which comprises a backpack support frame, wherein a backpack support plate is arranged at the lower side of the backpack support frame, a water storage tank is arranged at the lower side of the backpack support frame, a lower side blowing cavity is arranged at the upper side of the water storage tank, fans are symmetrically arranged at the left side and the right side of the base surface of the lower side blowing cavity, a heat dissipation back plate is arranged at the front side of the backpack support frame and positioned at the upper side of the water storage tank, a cooling heat exchange tube is arranged in the middle of the heat dissipation back plate, spring installation grooves which are uniformly distributed are arranged on the heat dissipation back plate, buffer springs are arranged on the inner walls of the spring installation grooves, a protective sleeve is sleeved on the outer walls of the buffer springs, a backpack body is arranged at the upper side of the backpack support frame, and the scheme has two cooling modes of liquid cooling and air cooling integrally, so that the overall cooling effect is good, thereby making the back of people more comfortable when the device is actually used.
Description
Technical Field
The invention relates to the technical field of outdoor bags and bags, in particular to an outdoor backpack with a good cooling effect.
Background
The backpack is a general name of backpack carried on the back of the backpack, and is divided into a backpack computer backpack, a sports backpack, a fashion backpack, a school backpack and a binding rope bag, a military backpack, a climbing bag and the like according to different purposes of the backpack, and the backpack can be further formed into a canvas bag, an oxford fabric bag and a nylon fabric bag according to different materials.
The back position of the existing outdoor backpack is in contact with the backpack for a long time when people carry the backpack, so that the back of people is easy to sweat, and the people are uncomfortable, and therefore the outdoor backpack with good cooling effect is needed to improve the problems.
Disclosure of Invention
The invention aims to provide an outdoor backpack with a good cooling effect, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an effectual outdoor both shoulders knapsack of cooling, includes the knapsack support frame, the knapsack backup pad is installed to knapsack support frame downside, the water storage box is installed to the downside of knapsack support frame, the upside of water storage box is provided with downside blowing chamber, the fan is installed to the left and right sides symmetry of downside blowing chamber base face, the heat dissipation backplate is installed and the upside that is located the water storage box in the front of knapsack support frame, the middle department of heat dissipation backplate installs the cooling heat exchange tube, set up evenly distributed's spring mounting groove on the heat dissipation backplate, buffer spring is installed to spring mounting groove's inner wall, buffer spring's outer wall cover is equipped with the lag, the knapsack body is installed to the upside of knapsack support frame, the back mounted of knapsack support frame has the knapsack braces.
As a preferable scheme of the invention, side vent holes are formed at the corners at the left and right sides of the backpack support frame and at positions corresponding to the lower side blowing cavities, the upper side of the backpack support frame is provided with an upper side blowing cavity, the front side of the backpack support frame is provided with a baffle at a position corresponding to the backpack body, and strip vent holes are formed at the left and right sides of the backpack support frame and at positions corresponding to the heat dissipation back plate.
As the preferable scheme of the invention, fans are symmetrically arranged at the bottom of the upper side blowing cavity in the left-right direction, and the blocking pieces are made of waterproof nylon fabrics.
According to the preferable scheme of the invention, lateral vent holes are formed in the left side and the right side of the backpack support frame and in positions corresponding to the upper side blowing cavity, the protecting sleeve is made of rubber materials, and the end part of the protecting sleeve is connected with the blocking piece in a bonding mode.
As a preferable scheme of the invention, a miniature submerged pump is arranged inside the water storage tank and at the left end of the cooling heat exchange pipe.
As a preferable scheme of the present invention, a lithium ion battery is installed inside the bottom of the backpack support frame, and the lithium ion battery is electrically connected to the fan and the micro submersible pump through wires, respectively, and a battery charging hole is installed on a side surface of the backpack support frame and at a position corresponding to the lithium ion battery.
As a preferable scheme of the invention, a water changing port is formed at the bottom of the backpack support frame and at a position corresponding to the water storage tank, and a plug is connected to the water changing port in a threaded manner.
As a preferable scheme of the invention, a zipper is installed at the edge of the backpack support frame and at the connection position with the backpack body, and a flexible photovoltaic panel is installed on the front surface of the backpack body.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the miniature submerged pump and the cooling heat exchange tube are matched for use, so that the cooling heat exchange tube can be attached to the back of people in actual use, and thus water-cooling of the back of people is realized.
2. According to the invention, the buffer spring can be arranged to ensure that the device can be well attached to the back of people when people bear the device, so that the cooling radiating pipe can be well attached to the back of people, a certain supporting effect can be achieved on the device, a certain radiating space is ensured to be arranged between the back plate and the blocking piece of the backpack, meanwhile, the buffer spring can be prevented from being exposed due to the arrangement of the protective sleeve, the surface dust accumulation of the buffer spring is further avoided, and the buffer spring can be prevented from clamping the hair of people.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the backpack support frame of the present invention;
FIG. 3 is a schematic view of the backpack support frame of the present invention;
FIG. 4 is a schematic view of the overall backside structure of the present invention;
FIG. 5 is a schematic view of the back side of the present invention.
In the figure: 1. a backpack support frame; 2. a backpack support plate; 3. a water storage tank; 4. a lower side blowing cavity; 5. a fan; 6. a heat dissipation back plate; 7. a cooling heat exchange pipe; 8. a spring mounting groove; 9. a buffer spring; 10. a protective sleeve; 11. a backpack body; 12. backpack straps; 13. a side vent; 14. an upper side blowing cavity; 15. a baffle plate; 16. a strip-shaped vent hole; 17. a miniature submerged pump; 18. a zipper; 19. a flexible photovoltaic panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
While several embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, in order to facilitate an understanding of the invention, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed to provide a more complete disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, and that the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-5, the present invention provides a technical solution:
the utility model provides an effectual outdoor both shoulders knapsack of cooling, including knapsack support frame 1, knapsack backup pad 2 is installed to 1 downside of knapsack support frame, water storage box 3 is installed to 1 downside of knapsack support frame, the upside of water storage box 3 is provided with downside chamber 4 of blowing, fan 5 is installed to the left and right sides symmetry of 4 basic planes in the chamber is blown to the downside, knapsack support frame 1's front is and lie in the upside of water storage box 3 and install heat dissipation backplate 6, the middle department of heat dissipation backplate 6 installs cooling heat exchange tube 7, set up evenly distributed's spring mounting groove 8 on the heat dissipation backplate 6, buffer spring 9 is installed to the inner wall of spring mounting groove 8, buffer spring 9's outer wall cover is equipped with lag 10, knapsack body 11 is installed to knapsack support frame 1's upside, knapsack support frame 1's back mounted has knapsack braces 12.
Referring to fig. 1-5, the corners of the left and right sides of the backpack support frame 1 and the position corresponding to the lower side blowing chamber 4 are provided with side vent holes 13, the upper side of the backpack support frame 1 is provided with an upper side blowing chamber 14, the front of the backpack support frame 1 and the position corresponding to the backpack body 11 are provided with baffle plates 15, the left and right sides of the backpack support frame 1 and the position corresponding to the heat dissipation back plate 6 are provided with strip vent holes 16, the bottom of the upper side blowing chamber 14 is bilaterally symmetrically provided with fans 5, the baffle plates 15 are made of waterproof nylon fabric, the positions of the left and right sides of the backpack support frame 1 and the position corresponding to the upper side blowing chamber 14 are provided with side vent holes 13, the protecting cover 10 is made of rubber material, the end of the protecting cover 10 is connected with the baffle plates 15 by bonding, the left end of the water storage tank 3 and the left end of the cooling heat exchange tube 7 are provided with a micro water pump 17, the lithium ion battery is arranged in the bottom of the backpack support frame 1 and is respectively electrically connected with the fan 5 and the miniature submerged pump 17 through leads, the battery charging hole is arranged on the side surface of the backpack support frame 1 and at the position corresponding to the lithium ion battery, the water changing port is arranged at the bottom of the backpack support frame 1 and at the position corresponding to the water storage tank 3, the water changing port is in threaded connection with a plug, the zipper 18 is arranged at the edge of the backpack support frame 1 and at the joint with the backpack body 11, the flexible photovoltaic panel 19 is arranged on the front surface of the backpack body 11, the cooling heat exchange tube 7 can be mutually attached to the back part of people when the device is in actual use through the matched use of the miniature submerged pump 17 and the cooling heat exchange tube 7, so that the water-cooling of the back part of people is realized, and meanwhile, the fan 5 which is arranged up and down can cool the cooling heat exchange tube 7, can carry out the forced air cooling to people's back again, the setting of structure can carry out water-cooling and forced air cooling to people's back position more than whole, the holistic cooling effect of this device has been improved, thereby avoid people to feel vexed heat at back position when carrying on the back the outdoor activities of shoulders bag long time, buffer spring 9 can guarantee when people bear this device can with the better laminating of people's back, thereby guarantee that cooling heat exchange tube 7 can laminate with people's back position well, can also play certain supporting role to this device, guarantee to have certain heat dissipation space between heat dissipation backplate 6 and separation blade 15, meanwhile buffer spring 9 can be avoided exposing in the setting of lag 10, and then avoid its surface deposition, can also avoid buffer spring 9 to carry people's hair.
The working process of the invention is as follows: when the device is used, people carry the device on the back of the user through the backpack straps 12, when the back of the user feels sultry, the miniature submerged pump 17 is started, the miniature submerged pump 17 pumps cooling water in the water storage tank 3 into the cooling heat exchange tube 7, so that direct heat exchange on the back of the user is realized, meanwhile, the fan 5 is started, and the fan 5 blows towards the inner side of the device, so that the air circulation speed of the back of the user is increased, and further, the rapid cooling is realized, the cooling heat exchange tube 7 can be mutually attached to the back of the user when the device is in actual use through the matched use of the arranged miniature submerged pump 17 and the cooling heat exchange tube 7, so that the water-cooling and the air-cooling on the back of the user are realized, meanwhile, the fans 5 which are arranged up and down can not only cool the cooling heat exchange tube 7, but also cool the back of the user in an air-cooling way, and the arrangement of the structure can carry out the water-cooling and air-cooling on the back of the user integrally, the holistic cooling effect of this device has been improved, thereby avoid people to feel sultry at back position when carrying on the back the outdoor activities of shoulders bag long time, buffer spring 9 can guarantee when people bear this device that this device can with the better laminating of people back, thereby guarantee that cooling heat exchange tube 7 can laminate with people's back position well, guarantee to have certain heat dissipation space between heat dissipation backplate 6 and the separation blade 15, meanwhile, buffer spring 9 can be avoided exposing in the setting of lag 10, and then avoid its surperficial deposition, can also avoid buffer spring 9 to carry people's hair.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an effectual outdoor both shoulders knapsack of cooling, includes knapsack support frame (1), its characterized in that: the backpack comprises a backpack support frame (1), a backpack support plate (2) is installed on the lower side of the backpack support frame (1), a water storage tank (3) is installed on the lower side of the backpack support frame (1), a lower side air blowing cavity (4) is arranged on the upper side of the water storage tank (3), fans (5) are symmetrically installed on the left side and the right side of the base surface of the lower side air blowing cavity (4), a heat dissipation back plate (6) is installed on the front side of the backpack support frame (1) and positioned on the upper side of the water storage tank (3), a cooling heat exchange tube (7) is installed in the middle of the heat dissipation back plate (6), spring installation grooves (8) which are uniformly distributed are formed in the heat dissipation back plate (6), a buffer spring (9) is installed on the inner wall of the spring installation groove (8), a protective sleeve (10) is sleeved on the outer wall of the buffer spring (9), and a backpack body (11) is installed on the upper side of the backpack support frame (1), the back surface of the backpack support frame (1) is provided with backpack straps (12).
2. The outdoor backpack with good cooling effect as claimed in claim 1, is characterized in that: the utility model discloses a backpack support frame, including knapsack support frame (1), knapsack body (11), separation blade (15), bar ventilation hole (16) have been seted up to the left and right sides corner of knapsack support frame (1) and the position that corresponds with downside blowing chamber (4), the upside of knapsack support frame (1) is provided with upside blowing chamber (14), the separation blade (15) are installed and the position that corresponds with knapsack body (11) in the front of knapsack support frame (1), the bar ventilation hole (16) have been seted up and the position that corresponds with heat dissipation backplate (6) in the left and right sides of knapsack support frame (1).
3. The outdoor backpack with good cooling effect as claimed in claim 2, is characterized in that: the fan (5) is arranged at the bottom of the upper side blowing cavity (14) in a bilateral symmetry mode, and the blocking pieces (15) are made of waterproof nylon fabrics.
4. The outdoor backpack with good cooling effect as claimed in claim 1, is characterized in that: the left and right sides of knapsack support frame (1) and with the position that upper side air-blowing chamber (14) corresponds seted up side ventilation hole (13), lag (10) select for use the rubber material preparation to form, and the tip of lag (10) is connected with separation blade (15) through the mode that bonds.
5. The outdoor backpack with good cooling effect as claimed in claim 1, is characterized in that: and a miniature submerged pump (17) is arranged in the water storage tank (3) and at the left end part of the cooling heat exchange pipe (7).
6. The outdoor backpack with good cooling effect as claimed in claim 1, is characterized in that: the novel backpack comprises a backpack support frame (1), wherein a lithium ion battery is arranged inside the bottom of the backpack support frame (1), the lithium ion battery is electrically connected with a fan (5) and a miniature submerged pump (17) through wires respectively, and battery charging holes are arranged on the side surface of the backpack support frame (1) and in positions corresponding to the lithium ion battery.
7. The outdoor backpack with good cooling effect as claimed in claim 1, is characterized in that: the water changing port is formed in the position, corresponding to the water storage tank (3), of the bottom of the backpack support frame (1), and a plug is connected to the water changing port in a threaded mode.
8. The outdoor backpack with good cooling effect as claimed in claim 1, is characterized in that: the edge of the backpack support frame (1) and the connection part of the backpack support frame and the backpack body (11) are provided with zippers (18), and the front surface of the backpack body (11) is provided with a flexible photovoltaic panel (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111573269.5A CN114209146A (en) | 2021-12-21 | 2021-12-21 | Effectual outdoor both shoulders knapsack of cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111573269.5A CN114209146A (en) | 2021-12-21 | 2021-12-21 | Effectual outdoor both shoulders knapsack of cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114209146A true CN114209146A (en) | 2022-03-22 |
Family
ID=80704808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111573269.5A Pending CN114209146A (en) | 2021-12-21 | 2021-12-21 | Effectual outdoor both shoulders knapsack of cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114209146A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115227995A (en) * | 2022-08-29 | 2022-10-25 | 江苏海拓科技有限公司 | Air respirator with cooling heat radiation structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665192A (en) * | 2015-03-03 | 2015-06-03 | 浙江理工大学 | Elastic backpack pad |
| CN109124007A (en) * | 2018-11-08 | 2019-01-04 | 楼梓峰 | A kind of knapsack with heat sinking function |
| CN214630649U (en) * | 2021-03-29 | 2021-11-09 | 徐东志 | Heat dissipation knapsack |
-
2021
- 2021-12-21 CN CN202111573269.5A patent/CN114209146A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104665192A (en) * | 2015-03-03 | 2015-06-03 | 浙江理工大学 | Elastic backpack pad |
| CN109124007A (en) * | 2018-11-08 | 2019-01-04 | 楼梓峰 | A kind of knapsack with heat sinking function |
| CN214630649U (en) * | 2021-03-29 | 2021-11-09 | 徐东志 | Heat dissipation knapsack |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115227995A (en) * | 2022-08-29 | 2022-10-25 | 江苏海拓科技有限公司 | Air respirator with cooling heat radiation structure |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220322 |
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| RJ01 | Rejection of invention patent application after publication |