CN113558330B - Safety helmet with built-in air conditioning device - Google Patents
Safety helmet with built-in air conditioning device Download PDFInfo
- Publication number
- CN113558330B CN113558330B CN202111104728.5A CN202111104728A CN113558330B CN 113558330 B CN113558330 B CN 113558330B CN 202111104728 A CN202111104728 A CN 202111104728A CN 113558330 B CN113558330 B CN 113558330B
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- Prior art keywords
- safety helmet
- assembly
- external
- lateral
- groove
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 24
- 238000000926 separation method Methods 0.000 claims abstract description 15
- 230000017525 heat dissipation Effects 0.000 claims abstract description 13
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005286 illumination Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 5
- 230000001815 facial effect Effects 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/0406—Accessories for helmets
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/0406—Accessories for helmets
- A42B3/0433—Detecting, signalling or lighting devices
- A42B3/044—Lighting devices, e.g. helmets with lamps
-
- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/0493—Aerodynamic helmets; Air guiding means therefor
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Helmets And Other Head Coverings (AREA)
Abstract
The invention relates to the technical field of air conditioning inside a safety helmet, in particular to a safety helmet with a built-in air conditioning device. According to the safety helmet with the built-in air conditioning device, the split type structural layout is adopted, the lateral assembling clamping strips on the outer side of the external reinforcing frame are inserted into the lateral assembling clamping grooves to be fixedly clamped with the safety helmet body, so that the external protection performance of the safety helmet is greatly improved as required, and the later-stage use cost is low; the centrifugal separation of the blade wheel set can improve the heat dissipation of the illuminating mechanism, so that the high-power illuminating lamp can be applied to a safety helmet, the service lives of equipment and the safety helmet are prolonged, and the safety in the night operation process is improved; can form the air curtain at the safety helmet front end, keep apart the dust to a certain extent in the mode operation process, keep facial dry and comfortable, promote constructor's healthy.
Description
Technical Field
The invention relates to the technical field of air conditioning inside a safety helmet, in particular to a safety helmet with a built-in air conditioning device.
Background
The safety helmet is a hat which can protect the head of a person from being hurt by falling objects and other specific factors. The safety helmet consists of a helmet shell, a helmet liner, a chin strap, accessories and the like.
The safety helmet mainly connects the cap liner through integrated into one piece's cap shell and protects operating personnel's head, promotes the security among operation and the work progress, but inside the operating environment that the safety helmet was worn to traditional needs is located open air or workshop more, and long-term wearing of safety helmet can lead to operating personnel head heat gathering, and unable circulation is dispelled the heat fast, causes uncomfortable sense, and this also is the leading cause that a small number of operating personnel are unwilling to wear the safety helmet.
Safety helmet on the present market simple structure, protective structure is mostly a body processing and forms, barrier propterty is limited, and can't dismantle the change, lead to in case local damage can only the whole change, the inside air of safety helmet can't be adjusted according to actual need simultaneously, it is more limited to lead to wearing the travelling comfort under adverse circumstances, because the mounted position on the safety helmet limits, can't adjust external equipment's structure and heat dissipation, it is very big to make it use the limitation, can't use for a long time, and can't promote the security that the person of wearing used under adverse circumstances.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problem that exists among the above-mentioned background art, a modified built-in air conditioning equipment's safety helmet is provided, solve safety helmet simple structure on the present market, protective structure is mostly that integrated processing forms, barrier propterty is limited, and can't dismantle the change, lead to in case local damage can only whole change, the inside air of safety helmet can't be adjusted according to actual need simultaneously, it is more limited to lead to wearing the travelling comfort under adverse circumstances, because the mounted position on the safety helmet limits, can't adjust external equipment's structure and heat dissipation, it is very big to make it use the limitation, can't use for a long time, and can't promote the problem of the security of wearing person under adverse circumstances use.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a built-in air conditioning equipment's safety helmet, includes the safety helmet body, is used for the LED lamp of illumination, driving motor and is used for the lithium cell of power supply, the safety helmet body outside arcwall face on seted up external assembly draw-in groove, the inside joint of external assembly draw-in groove be fixed with the outside enhancement frame of built-in gas transmission runner, outside enhancement frame front end lateral surface on offer the leading assembly adjustment tank that is used for installing LED lamp and driving motor, outside enhancement frame rear end lateral surface on offer the rearmounted assembly fixed slot that is used for installing the lithium cell, leading assembly adjustment tank medial surface on the screw thread be equipped with external screw thread adjusting frame.
The external assembly clamping groove is internally provided with a plurality of first radiating ports on the inner bottom surface, and the external reinforcing frame is provided with second radiating ports corresponding to the outer side surfaces of the first radiating ports.
Outside enhancement frame lateral surface lower extreme outside bellied side direction assembly card strip has, external assembly card slot medial surface contained angle position seted up with side direction joint strip matched with side direction assembly card slot, outside enhancement frame insert the inside and external assembly card slot fixed mounting of side direction assembly card slot through side direction assembly card strip.
The external reinforcing frame comprises an arc-shaped middle frame body and a plurality of arc-shaped lateral frame bodies fixed on two sides of the arc-shaped middle frame body.
The center of the inner side surface of the front assembly adjusting groove is provided with a middle fixed clamping groove for mounting a driving motor, and a centrifugal separation blade wheel set is axially fixed on a rotating shaft at the outer side of the driving motor.
Lateral assembly necking grooves are symmetrically formed in the inner walls of the two sides of the front assembly adjusting groove, lateral assembly rods on the outer side wall of the LED lamp are inserted into the lateral assembly necking grooves and are movably connected with the front assembly adjusting groove, and arc-shaped radiating fins which are arranged in an annular array mode are fixedly connected to the outer side wall of the LED lamp.
Centrifugal separation blade wheelset include that the coaxial pivot mount pad of fixing in the pivot of driving motor outside changes epaxial and be the bending blade of annular array mode fixing on pivot mount pad lateral wall, bending blade and arc fin between leave the clearance.
The inner side surface of the front assembly adjusting groove is provided with an upper air exhaust port communicated with the air transmission flow passage, and the inner bottom surface of the front assembly adjusting groove is provided with lateral air exhaust ports communicated with the lower surface of the safety helmet body.
The lower surface of the safety helmet body is provided with a bottom adjusting opening internally provided with a bottom adjusting tooth block, and the outer side thread surface of the outer thread adjusting frame is provided with an annular adjusting tooth groove meshed with the bottom adjusting tooth block.
The inner side surface of the front assembly adjusting groove is positioned between the centrifugal separation blade wheel set and the arc-shaped radiating fin and is fixedly provided with a metal filter screen frame.
The invention has the beneficial effects that:
(1) according to the safety helmet with the built-in air conditioning device, the split type structural layout is adopted, the lateral assembling clamping strips on the outer sides of the external reinforcing frames are inserted into the lateral assembling clamping grooves to be fixedly clamped with the safety helmet body, so that the external protection performance of the safety helmet is greatly improved as required, meanwhile, the external reinforcing frames can be replaced to maintain after being damaged, and the later-period use cost is low;
(2) the front end of the external reinforcing frame is provided with a front assembly adjusting groove for mounting the LED lamp and the driving motor, the rear end of the external reinforcing frame is provided with a rear assembly fixing groove for mounting the lithium battery, the lithium battery is used for respectively supplying power to the LED lamp and the driving motor, the outdoor use is facilitated, the work duration is improved, the LED lamp is used for prolonging the operation and use by light supplement, the driving motor is used for driving the centrifugal separation blade wheel set to improve the air circulation in the operation process, and the heat dissipation of the LED lamp is improved while the discomfort after long-time wearing can be improved;
(3) the centrifugal separation of the blade wheel set can improve the heat dissipation of the illuminating mechanism, so that the high-power illuminating lamp can be applied to a safety helmet, the service lives of equipment and the safety helmet are prolonged, and the safety in the night operation process is improved;
(4) can the inside air flow direction of leading assembly adjustment tank of quick adjustment through the external screw thread control frame, through the flow direction of switching the air, can form the air curtain at the safety helmet front end, keep apart the dust to a certain extent in the mode operation process, keep facial dry and comfortable, promote constructor's healthy.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a side cross-sectional view of the present invention.
FIG. 3 is a partial cross-sectional view of the position of the pre-assembly adjustment slot of the present invention.
Fig. 4 is a schematic structural view of an outer reinforcing frame in the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Fig. 1, the safety helmet of a built-in air conditioning equipment that fig. 2 and fig. 3 show, including safety helmet body 1, a LED lamp 2 for the illumination, driving motor 3 and lithium cell 4 for the power supply, external assembly draw-in groove 5 has been seted up on the arc face in the 1 outside of safety helmet body, the inside joint of external assembly draw-in groove 5 is fixed with the outside enhancement frame 6 of built-in gas transmission runner, set up leading assembly adjustment tank 7 that is used for installing LED lamp 2 and driving motor 3 on the outside 6 front end lateral surfaces of outside enhancement frame, set up rearmounted assembly fixed slot 8 that is used for installing lithium cell 4 on the outside 6 rear end lateral surfaces of outside enhancement frame, the screw thread is equipped with external screw thread adjusting frame 9 on leading assembly adjustment tank 7 medial surface.
Furthermore, in order to cooperate to exhaust air, 10 first heat dissipation ports 10 are formed in the bottom surface of the external assembly clamping groove 5, and a second heat dissipation port 11 is formed in the outer side surface, corresponding to the first heat dissipation ports 10, of the external reinforcing frame 6.
As shown in fig. 4, in order to facilitate the assembly firmness and the ventilation effect, the lower end of the outer side surface of the external reinforcing frame 6 is provided with a lateral assembly clamping strip 12 protruding outwards, a lateral assembly clamping groove 13 matched with the lateral clamping strip 12 is formed in the included angle position of the inner side surface of the external assembly clamping groove 5, and the external reinforcing frame 6 is fixedly assembled with the external assembly clamping groove 5 by inserting the lateral assembly clamping strip 12 into the lateral assembly clamping groove 13.
Further, in order to enhance the reinforcing effect, the outer reinforcing frame 6 includes an arc-shaped middle frame body 61 and a plurality of arc-shaped lateral frame bodies 62 fixed on both sides of the arc-shaped middle frame body 61.
Furthermore, in order to be matched with and install the power unit, a middle fixing clamping groove 14 for installing the driving motor 3 is formed in the center of the inner side face of the front assembling adjusting groove 7, and a centrifugal separation blade wheel set is axially fixed on a rotating shaft on the outer side of the driving motor 3.
Further, in order to promote the centrifugal exhaust effect, lateral assembly necking grooves are symmetrically formed in the inner walls of the two sides of the front assembly adjusting groove 7, and lateral assembly rods on the outer side wall of the LED lamp 2 are inserted into the lateral assembly necking grooves and fixedly connected with arc-shaped radiating fins 15 which are arranged in an annular array mode on the outer side wall of the front assembly adjusting groove 7 movably connected with the LED lamp 2.
Further, in order to cooperate with air conditioning, the centrifugal separation blade wheel set comprises a rotating shaft mounting seat 16 coaxially fixed on a rotating shaft at the outer side of the driving motor 3 and bent blades 17 fixed on the side wall of the rotating shaft mounting seat 16 in an annular array mode, and a gap is reserved between the bent blades 17 and the arc-shaped cooling fins 15.
Furthermore, in order to cooperate with the switching and adjustment of the flow channel and the flow direction, an upper air suction port 18 communicated with the air delivery flow channel is formed on the inner side surface of the front assembly adjusting groove 7, and lateral air exhaust ports 19 communicated with the lower surface of the helmet body 1 are formed on the inner bottom surface of the front assembly adjusting groove 7.
The external thread adjusting frame 9 is adjusted in a translation mode inside the front assembly adjusting groove 7 through rotation, when the external thread adjusting frame translates outwards, the upper air suction port 18 is opened at this time, the lateral air exhaust port 19 is closed, the driving motor 3 drives the centrifugal separation blade wheel set to rotate at a high speed at this time, air passes through the first heat radiation port 10 and the second heat radiation port 11, is sucked from the upper air suction port 18, is blown to the outer side face of the front assembly adjusting groove 7, and is finally exhausted from an opening at the front end of the front assembly adjusting groove 7; when the externally threaded adjusting frame 9 is translated inwards, the overhead suction port 18 is closed at this time, the side exhaust port 19 is opened, and air is sucked in from the opening on the outer side of the front assembling adjusting groove 7 at this time and then is exhausted from the side exhaust port 19.
As shown in fig. 3, in order to improve the effect, an auxiliary turnover closing cover plate can be elastically assembled at the opening position outside the front assembly adjusting groove 7, the external thread adjusting frame 9 can lift the air outlet when translating outwards, and air can overflow when the external thread adjusting frame 9 translates inwards.
Further, in order to match with bottom adjustment, the lower surface of the helmet body 1 is provided with a bottom adjustment opening with a built-in bottom adjustment toothed block 20, and the outer side thread surface of the external thread adjustment frame 9 is provided with an annular adjustment toothed groove 21 meshed with the bottom adjustment toothed block 20.
People can drive the external thread adjusting frame 9 to rotate by dialing the bottom adjusting tooth block 20 with fingers, so that the external thread adjusting frame 9 is adjusted to be located at the position of the front assembly adjusting groove 7, and the inner side surface of the front assembly adjusting groove 7 is located at the assembly end of the external thread adjusting frame 9 and is an annular thread surface.
Further, in order to promote the dust suction in the air suction state, a metal filter screen frame 22 is fixedly assembled between the centrifugal separation blade wheel set and the arc-shaped cooling fins 15 on the inner side surface of the front assembly adjusting groove 7.
The metal filter screen frame 22 is designed to be a detachable structure, the LED lamp 2 is detached firstly, and then the metal filter screen frame 22 is detached, so that the metal filter screen frame is mainly applied to the environment with more dust.
According to the safety helmet with the built-in air conditioning device, the split type structural layout is adopted, the lateral assembling clamping strips 12 on the outer sides of the external reinforcing frames 6 are inserted into the lateral assembling clamping grooves 13 to be fixedly clamped with the safety helmet body 1, so that the external protection performance of the safety helmet is greatly improved as required, meanwhile, the external reinforcing frames 6 can be replaced to maintain after being damaged, and the later-stage use cost is low; the front end of the external reinforcing frame 6 is provided with a front assembly adjusting groove 7 for mounting the LED lamp 2 and the driving motor 3, the rear end of the external reinforcing frame 6 is provided with a rear assembly fixing groove 8 for mounting the lithium battery 4, the lithium battery 4 is used for supplying power to the LED lamp 2 and the driving motor 3 respectively, the outdoor use is facilitated, the work endurance is improved, the LED lamp 2 is used for supplementing light to prolong the operation use, the driving motor 3 is used for driving a centrifugal separation blade wheel set to improve the air circulation in the operation process, and the heat dissipation of the LED lamp 2 is improved, and meanwhile, the discomfort after long-time wearing can be improved; the centrifugal separation of the blade wheel set can improve the heat dissipation of the illuminating mechanism, so that the high-power illuminating lamp can be applied to a safety helmet, the service lives of equipment and the safety helmet are prolonged, and the safety in the night operation process is improved; can the leading assembly adjustment tank 7 inside air flow direction of quick adjustment through external screw thread adjusting collar 9, through the flow direction of switching air, can form the air curtain at the safety helmet front end, keep apart the dust in mode operation process to a certain extent, keep facial dry and comfortable, promote constructor's healthy.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The utility model provides a built-in air conditioning equipment's safety helmet, includes safety helmet body (1), LED lamp (2) that are used for the illumination, driving motor (3) and be used for the lithium cell (4) of power supply, characterized by: the safety helmet is characterized in that an external assembly clamping groove (5) is formed in the arc-shaped surface of the outer side of the safety helmet body (1), an external reinforcing frame (6) with a built-in gas transmission flow channel is fixedly clamped in the external assembly clamping groove (5), a front assembly adjusting groove (7) for installing the LED lamp (2) and the driving motor (3) is formed in the outer side surface of the front end of the external reinforcing frame (6), a rear assembly fixing groove (8) for installing the lithium battery (4) is formed in the outer side surface of the rear end of the external reinforcing frame (6), an external thread adjusting frame (9) is assembled on the inner side surface of the front assembly adjusting groove (7) in a threaded manner, a lateral assembly clamping strip (12) protruding outwards is arranged at the lower end of the outer side surface of the external reinforcing frame (6), and a lateral assembly clamping groove (13) matched with the lateral assembly clamping strip (12) is formed in the included angle position of the inner side surface of the external assembly clamping groove (5), the external reinforcing frame (6) is inserted into a lateral assembly clamping groove (13) through a lateral assembly clamping strip (12) and fixedly assembled with the external assembly clamping groove (5), a plurality of first heat dissipation ports (10) are formed in the inner bottom surface of the external assembly clamping groove (5), a second heat dissipation port (11) is formed in the outer side surface of the external reinforcing frame (6) corresponding to the first heat dissipation ports (10), a middle fixed clamping groove (14) used for installing a driving motor (3) is formed in the center position of the inner side surface of a front assembly adjusting groove (7), a centrifugal separation blade wheel set is axially fixed on a rotating shaft at the outer side of the driving motor (3), lateral assembly necking grooves are symmetrically formed in the inner walls at the two sides of the front assembly adjusting groove (7), a lateral assembly rod on the outer side wall of the LED lamp (2) is inserted into the lateral assembly necking grooves and movably connected with the front assembly adjusting groove (7), fixedly connected with is arc fin (15) that the annular array mode was arranged on the lateral wall of LED lamp (2), centrifugal separation blade wheelset including coaxial fixation pivot mount pad (16) in driving motor (3) outside pivot and be the annular array mode and fix blade (17) of buckling on pivot mount pad (16) lateral wall, blade (17) and arc fin (15) of buckling between leave the clearance, leading assembly adjustment tank (7) medial surface on set up overhead extraction opening (18) that are linked together with the gas transmission runner, leading assembly adjustment tank (7) in the bottom surface on all set up side direction gas vent (19) that are linked together with safety helmet body (1) lower surface.
2. The safety helmet with an internal air conditioner according to claim 1, wherein: the external reinforcing frame (6) comprises an arc-shaped middle frame body (61) and a plurality of arc-shaped lateral frame bodies (62) fixed on two sides of the arc-shaped middle frame body (61).
3. The safety helmet with an internal air conditioner according to claim 1, wherein: the lower surface of the safety helmet body (1) is provided with a bottom adjusting opening internally provided with a bottom adjusting tooth block (20), and the outer side thread surface of the outer thread adjusting frame (9) is provided with an annular adjusting tooth groove (21) meshed with the bottom adjusting tooth block (20).
4. The safety helmet with an internal air conditioner according to claim 1, wherein: the inner side surface of the front assembly adjusting groove (7) is positioned between the centrifugal separation blade wheel set and the arc-shaped radiating fin (15) and is fixedly provided with a metal filter screen frame (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111104728.5A CN113558330B (en) | 2021-09-22 | 2021-09-22 | Safety helmet with built-in air conditioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111104728.5A CN113558330B (en) | 2021-09-22 | 2021-09-22 | Safety helmet with built-in air conditioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113558330A CN113558330A (en) | 2021-10-29 |
| CN113558330B true CN113558330B (en) | 2021-12-07 |
Family
ID=78173905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111104728.5A Active CN113558330B (en) | 2021-09-22 | 2021-09-22 | Safety helmet with built-in air conditioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113558330B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1101755A (en) * | 1978-02-10 | 1981-05-26 | Canadian Patents And Development Limited | Safety helmet for miners |
| CN110477496A (en) * | 2019-08-26 | 2019-11-22 | 贵州大学 | A kind of search lighting device convenient for fixation of underground mining |
| CN111248569A (en) * | 2020-02-21 | 2020-06-09 | 青岛理工大学 | Head safety device for metal mine |
| CN211794565U (en) * | 2020-02-26 | 2020-10-30 | 张玲燕 | Labor protection type ventilation safety helmet |
| CN212345522U (en) * | 2020-06-01 | 2021-01-15 | 韩时中 | Solar cooling type safety helmet |
-
2021
- 2021-09-22 CN CN202111104728.5A patent/CN113558330B/en active Active
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| Publication number | Publication date |
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| CN113558330A (en) | 2021-10-29 |
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Effective date of registration: 20230717 Address after: 226100 No. 599, Wangjiang South Road, Sanchang street, Haimen District, Nantong City, Jiangsu Province Patentee after: Nantong Linde safety equipment Technology Co.,Ltd. Address before: 226100 No. 599, Wangjiang South Road, Sanchang street, Haimen District, Nantong City, Jiangsu Province Patentee before: Nantong Lin'an safety equipment Technology Co.,Ltd. |
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Effective date of registration: 20240407 Address after: B1101, No. 150, Shangzao Building, Gaofeng Community, Dalang Street, Longhua District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Litong Zhiyuan Technology Transfer Center Co.,Ltd. Country or region after: China Address before: 226100 No. 599, Wangjiang South Road, Sanchang street, Haimen District, Nantong City, Jiangsu Province Patentee before: Nantong Linde safety equipment Technology Co.,Ltd. Country or region before: China |