CN110075443B - Falling protector capable of automatically contracting - Google Patents
Falling protector capable of automatically contracting Download PDFInfo
- Publication number
- CN110075443B CN110075443B CN201910380818.3A CN201910380818A CN110075443B CN 110075443 B CN110075443 B CN 110075443B CN 201910380818 A CN201910380818 A CN 201910380818A CN 110075443 B CN110075443 B CN 110075443B
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- CN
- China
- Prior art keywords
- fixedly connected
- cavity
- bevel gear
- gear
- box body
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables
- E04G3/32—Hoisting devices; Safety devices
Abstract
The invention discloses a falling protector capable of automatically contracting, which comprises a box body, wherein a closed cavity is arranged in the box body, a movable moving rod is arranged in the closed cavity, the upper end of the moving rod is rotatably connected with a bevel gear shaft, the upper end of the bevel gear shaft is fixedly connected with a first bevel gear, the lower end of the bevel gear shaft is fixedly connected with a second bevel gear, the lower end of the moving rod is fixedly connected with a delay device, and the right end of the delay device is fixedly connected with a transmission device; the anti-falling device can be locked after being stressed, and the rope in the anti-falling device is automatically contracted, so that the heavy object returns to the safe position, and the device is restored to the initial state.
Description
Technical Field
The invention relates to the field of safety devices, in particular to a falling protector capable of automatically contracting.
Background
The common falling protector only comprises a locking mechanism, needs people to unlock after locking, lacks efficiency, and does not have a falling protector capable of automatically contracting at present, so that the falling protector capable of automatically contracting is actually necessary.
Disclosure of Invention
The technical problem is as follows:
the common falling protector only comprises a locking mechanism when being used by people, and can be unlocked only by people through rescue after being locked, so that the efficiency is lacked.
In order to solve the problems, the embodiment designs an automatic retractable falling protector which comprises a box body, wherein a closed cavity is arranged in the box body, a movable moving rod is arranged in the closed cavity, the upper end of the moving rod is rotatably connected with a bevel gear shaft, the upper end of the bevel gear shaft is fixedly connected with a first bevel gear, the lower end of the bevel gear shaft is fixedly connected with a second bevel gear, the lower end of the moving rod is fixedly connected with a time delay device, the right end of the time delay device is fixedly connected with a transmission device, a box body block is slidably arranged on the right side of the box body and fixedly connected with the transmission device, an electromagnet is slidably arranged on the inner wall of the right side of the closed cavity, the left end of the electromagnet is fixedly connected with a motor, the electromagnet can be driven to slide when sliding, a third bevel gear is rotatably arranged on the, the right end of the third bevel gear is fixedly connected with a motor shaft, the right end of the motor shaft is in power connection with the motor, a transmission gear is rotatably arranged on the right side of the third bevel gear, the transmission gear is fixedly connected with the motor shaft, and a starting device is fixedly connected to the left end face of the motor.
But preferably, the first transmission chamber that is equipped with the opening and to the right that communicates in the closed chamber right side inner wall, the rotatable first gear shaft that is equipped with of first transmission intracavity, first gear shaft left end extends to the closed intracavity has just linked firmly meshing gear, meshing gear can with the drive gear meshing, first gear shaft right-hand member extends to the external threaded rod that has just linked firmly of box, be equipped with the threaded cavity left of opening in the box piece, threaded rod right-hand member threaded connection in the threaded cavity, the rotation of threaded rod can drive the removal of box piece.
Preferably, a second transmission cavity with a right opening is formed in the inner wall of the right side of the closed cavity, the second transmission cavity is located on the upper side of the first transmission cavity, a second gear shaft is rotatably arranged in the second transmission cavity, the left end of the second gear shaft extends into the closed cavity and is fixedly connected with a fourth bevel gear, and the fourth bevel gear can be meshed with the first bevel gear.
Preferably, a steel wire rope is wound between the first gear shaft and the second gear shaft, a first wire groove and a second wire groove are communicated between the second transmission cavity and the first transmission cavity, the second wire groove is located on the left side of the first wire groove, the steel wire rope respectively penetrates through the first wire groove and the second wire groove, and a control device is arranged in the first wire groove and the second wire groove.
Advantageously, the time delay device includes a cylinder disposed on the right side of the moving rod, a piston cavity is disposed in the cylinder, a piston is slidably disposed in the piston cavity, the left end of the piston is fixedly connected to the moving rod, the piston divides the piston cavity into a left part and a right part, the air pressure on the left side and the right side of the initial state is equal to the atmospheric pressure, a first gas valve and a second gas valve are disposed on the left end and the right end of the upper side of the cylinder, when the cylinder slides to the right, the piston slides to the left relative to the cylinder, so that the air pressure on the left side of the piston is increased, the piston slides to the right under the pushing of the high air pressure, at this time, the two gas valves are simultaneously opened, and the piston is inflated and deflated to stably slide and finally stop, at this time, the first bevel gear is.
Beneficially, the transmission device comprises a first sliding cavity communicated with the inner wall of the right side of the closed cavity, a transmission rod is slidably arranged in the first sliding cavity, a first rack is fixedly connected to the upper end of the transmission rod, a gear cavity is arranged in the inner wall of the upper side of the first sliding cavity in a communicated manner, a fixed shaft is rotatably connected between the front inner wall and the rear inner wall of the gear cavity, a fixed shaft gear is fixedly connected onto the fixed shaft and meshed with the first rack, a second sliding cavity is arranged in the inner wall of the upper side of the gear cavity in a communicated manner and provided with a sliding rod capable of sliding left and right in the second sliding cavity, the right end of the sliding rod is fixedly connected to the box body block, a second rack is fixedly connected to the lower end of the sliding rod and meshed with the fixed shaft gear, and the transmission rod slides and can drive the fixed shaft gear to rotate through the first rack, and then the second rack can be driven to slide, and the sliding rod can be driven to slide.
Advantageously, the actuating device comprises a fixed rod fixedly connected to the left end face of the motor, the left end of the fixed rod is fixedly connected with a first button, and the inner wall of the right side of the closed cavity is fixedly connected with a second button.
Preferably, in the first wire casing first square has been linked firmly on the wire rope, be equipped with on the inner wall of first wire casing right side just to the first detection piece of first square, the second wire casing wire rope has linked firmly the second square, be equipped with on the inner wall of second wire casing left side just to the second detection piece of second square, works as the first square of first wire casing rises and is detected by first detection piece then, the electro-magnet circular telegram works as the second square descends and is detected by the second detection piece then, the electro-magnet outage.
Advantageously, the upper side of the box body block is rotatably connected with a positioning rod, the positioning rod is used for positioning the sliding of the box body block, and the right side of the box body block is provided with a limit block fixedly connected to the upper side, and the limit block can be used for limiting the sliding of the box body block.
The invention has the beneficial effects that: the fall arrester can be locked after being stressed, and a rope in the fall arrester can be automatically contracted, so that the heavy object returns to a safe position, and the device is restored to the initial state.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the overall structure of an automatically retractable safety hook of the present invention;
FIG. 2 is an enlarged schematic view of "A" of FIG. 1;
FIG. 3 is an enlarged schematic view of "B" of FIG. 1;
fig. 4 is an enlarged schematic view of "C" of fig. 3.
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a falling protector capable of automatically contracting, which is mainly applied to the automatic contraction and recovery of a rope arranged in a device after the falling protector is stressed, and the invention is further explained by combining the attached drawings of the invention:
the invention relates to an automatic-contraction falling protector which comprises a box body 54, wherein a closed cavity 14 is arranged in the box body 54, a movable moving rod 13 is arranged in the closed cavity 14, the upper end of the moving rod 13 is rotatably connected with a bevel gear shaft 11, the upper end of the bevel gear shaft 11 is fixedly connected with a first bevel gear 10, the lower end of the bevel gear shaft 11 is fixedly connected with a second bevel gear 12, the lower end of the moving rod 13 is fixedly connected with a time delay device 100, the right end of the time delay device 100 is fixedly connected with a transmission device 101, a box body block 25 is slidably arranged on the right side of the box body 54, the box body block 25 is fixedly connected with the transmission device 101, an electromagnet 20 is slidably arranged on the inner wall of the right side of the closed cavity 14, the left end of the electromagnet 20 is fixedly connected with a motor 19, the electromagnet 20 can drive the motor 19 to slide, and, the third bevel gear 15 can with the meshing of second bevel gear 12, third bevel gear 15 right-hand member has linked firmly motor shaft 16, motor shaft 16 right-hand member power connect in motor 19, the rotatable drive gear 17 that is equipped with in third bevel gear 15 right side, drive gear 17 link firmly in motor shaft 16, linked firmly starting drive 102 on the motor 19 left end face.
Beneficially, a first transmission cavity 22 with a right opening is arranged in the inner wall of the right side of the closed cavity 14, a first gear shaft 21 is rotatably arranged in the first transmission cavity 22, the left end of the first gear shaft 21 extends into the closed cavity 14 and is fixedly connected with a meshing gear 18, the meshing gear 18 can be meshed with the transmission gear 17, the right end of the first gear shaft 21 extends out of the box body 54 and is fixedly connected with a threaded rod 24, a threaded cavity 23 with a left opening is arranged in the box body block 25, the right end of the threaded rod 24 is in threaded connection with the threaded cavity 23, and the box body block 25 can be driven to move by rotation of the threaded rod 24.
Advantageously, a second transmission cavity 31 which is opened to the right is arranged in the inner wall of the right side of the closed cavity 14, the second transmission cavity 31 is positioned at the upper side of the first transmission cavity 22, a second gear shaft 28 is rotatably arranged in the second transmission cavity 31, the left end of the second gear shaft 28 extends into the closed cavity 14 and is fixedly connected with a fourth bevel gear 32, and the fourth bevel gear 32 can be meshed with the first bevel gear 10.
Advantageously, a steel cable 52 is wound between the first gear shaft 21 and the second gear shaft 28, a first cable slot 29 and a second cable slot 30 are arranged in communication between the second transmission cavity 31 and the first transmission cavity 22, the second cable slot 30 is located on the left side of the first cable slot 29, the steel cable 52 passes through the first cable slot 29 and the second cable slot 30, and a control device 103 is arranged in the first cable slot 29 and the second cable slot 30.
According to the embodiment, the time delay device 100 will be described in detail below, the time delay device 100 includes a cylinder 40 disposed on the right side of the moving rod 13, a piston cavity 38 is disposed in the cylinder 40, a piston 39 is slidably disposed in the piston cavity 38, the left end of the piston 39 is fixedly connected to the moving rod 13, the piston 39 divides the piston cavity 38 into a left portion and a right portion, the air pressure on the left and right sides is equal to the atmospheric pressure in the initial state, a first gas valve 55 and a second gas valve 60 are respectively disposed on the left and right ends of the upper side of the cylinder 40, when the cylinder 40 slides to the right, the piston 39 slides to the left relative to the cylinder 40, and further the air pressure on the left side of the piston 39 is increased, so that the piston 39 slides to the right under the push of high air pressure, at this time, the two gas valves are simultaneously opened, and the air is inflated and deflated to allow the piston 39 to, the first bevel gear 10 is now in mesh with the second bevel gear 12.
According to the embodiment, the transmission device 101 is described in detail below, the transmission device 101 includes a first sliding cavity 44 communicated with and disposed in the inner wall of the right side of the closed cavity 14, a transmission rod 41 is slidably disposed in the first sliding cavity 44, the upper end of the transmission rod 41 is fixedly connected with a first rack 42, a gear cavity 56 is disposed in the inner wall of the upper side of the first sliding cavity 44 in a communicating manner, a fixed shaft 43 is rotatably connected between the front and rear inner walls of the gear cavity 56, a fixed shaft gear 47 is fixedly connected to the fixed shaft 43, the fixed shaft gear 47 is engaged with the first rack 42, a second sliding cavity 48 is disposed in the inner wall of the upper side of the gear cavity 56 in a communicating manner, a sliding rod 45 is disposed in the second sliding cavity 48 in a left-right sliding manner, the right end of the sliding rod 45 is fixedly connected to the box body block 25, the lower end of the sliding rod 45 is fixedly connected with a second rack 46, and the second rack 46 is engaged with, the driving rod 41 slides and can drive the fixed shaft gear 47 to rotate through the first rack 42, and then can drive the second rack 46 to slide, and further can drive the sliding rod 45 to slide.
According to an embodiment, the starting device 102 is described in detail below, the starting device 102 includes a fixing rod 35 fixedly connected to a left end surface of the motor 19, a first button 57 is fixedly connected to a left end of the fixing rod 35, and a second button 58 is fixedly connected to a right inner wall of the closed cavity 14.
According to an embodiment, the control device 103 is described in detail below, the first block 50 is fixedly connected to the steel wire rope 52 in the first wire slot 29, the first detecting block 49 corresponding to the first block 50 is arranged on the inner wall of the right side of the first wire slot 29, the second block 51 is fixedly connected to the steel wire rope 52 of the second wire slot 30, the second detecting block 53 corresponding to the second block 51 is arranged on the inner wall of the left side of the second wire slot 30, when the first block 50 in the first wire slot 29 ascends and is detected by the first detecting block, the electromagnet 20 is powered on, and when the second block 51 in the second wire slot 30 descends and is detected by the second detecting block, the electromagnet 20 is powered off.
Advantageously, a positioning rod 26 is rotatably connected to the upper side of the tank block 25, the positioning rod 26 is used for positioning the sliding of the tank block 25, and the right side of the tank block 25 is provided with a limit block 27 which is fixedly connected to the positioning rod 26, and the limit block 27 is used for limiting the sliding of the tank block 25.
The use steps herein are described in detail below with reference to fig. 1-4:
initially, the second block 50 and the first block 49 can be detected by the second detection block 51 and the first detection block 53, respectively.
When in use, a downward acting force is applied to the steel wire rope 52 in the first wire slot 29, the steel wire rope 52 on the second gear shaft 28 drives the second gear shaft 28 to rotate due to the action of friction force, the rotation of the second gear shaft 28 drives the first gear shaft 21 to rotate, the rotation of the first gear shaft 21 can drive the threaded rod 24 to rotate, and further the box body block 25 is driven to slide, and further the sliding rod 45 is driven to slide, and further the fixed shaft gear 47 is driven to rotate around the fixed shaft 43, and further the transmission rod 41 is driven to slide, and further the sliding rod 13 is driven to slide by driving the sliding of the time delay device 100, due to the action of the time delay device 100, when the second gear shaft 28 stops rotating, the first bevel gear 10 and the second bevel gear 12 are meshed with the fourth bevel gear 32 and the third bevel gear 15, and due to the upper side of the moving rod 13 contacting the first button 57, and further drives the third bevel gear 15 to rotate, and further drives the second bevel gear 12, the bevel gear shaft 11 and the first bevel gear 10 to rotate, and further drives the fourth bevel gear 32 to rotate, and the rotation of the fourth bevel gear 32 drives the first square block 50 in the first linear groove 29 to ascend, when the first square block 50 ascends to be detected by the first detecting block 49, the first detecting block 49 energizes the electromagnet 20 to cause the electromagnet 20 to compress and further drive the motor 19 to slide, because the fixed rod 35 is fixedly connected to the upper side of the motor 19, the rightward sliding of the motor 19 drives the first button 57 to be disconnected, and further the motor 19 is powered off, and further the motor shaft 16 is meshed with the meshed gear 18, and because the rightward movement of the fixed rod 35 starts the second button 58, and further the motor 19 is energized, and further the transmission gear 17 rotates, and further drives the meshed gear 18 to rotate, and further drives the first gear shaft 21 to rotate, and then the steel wire rope 52 in the second wire groove 30 is driven to slide downwards, when the second block 51 just slides downwards to the right side of the second detection block 53, the second detection block 53 cuts off the power of the electromagnet 20, the electromagnet 20 moves leftwards under the action of the spring, and then the motor moves leftwards, so that the fixing rod 35 moves leftwards, the motor 19 cuts off the power, and the falling protector returns to the initial state.
The invention has the beneficial effects that: the anti-falling device can be locked after being stressed, and the rope in the anti-falling device is automatically contracted, so that the heavy object returns to the safe position, and the device is restored to the initial state.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (1)
1. A falling protector capable of automatically contracting comprises a box body; a closed cavity is formed in the box body, a movable moving rod is arranged in the closed cavity, the upper end of the moving rod is rotatably connected with a bevel gear shaft, the upper end of the bevel gear shaft is fixedly connected with a first bevel gear, and the lower end of the bevel gear shaft is fixedly connected with a second bevel gear; the lower end of the moving rod is fixedly connected with a delay device, the right end of the delay device is fixedly connected with a transmission device, a box body block is slidably arranged on the right side of the box body, and the box body block is fixedly connected with the transmission device; an electromagnet is slidably arranged on the inner wall of the right side of the closed cavity, the left end of the electromagnet is fixedly connected with a motor, the left side of the motor is rotatably provided with a third bevel gear, the third bevel gear can be meshed with the second bevel gear, the right end of the third bevel gear is fixedly connected with a motor shaft, the right end of the motor shaft is in power connection with the motor, the right side of the third bevel gear is rotatably provided with a transmission gear, and the transmission gear is fixedly connected with the motor shaft; the starting device is fixedly connected to the left end face of the motor; the right side inner wall of the closed cavity is internally provided with a first transmission cavity communicated with each other, the opening of the first transmission cavity is right, a first gear shaft is rotatably arranged in the first transmission cavity, the left end of the first gear shaft extends into the closed cavity and is fixedly connected with a meshing gear, the meshing gear can be meshed with the transmission gear, the right end of the first gear shaft extends out of the box body and is fixedly connected with a threaded rod, a threaded cavity with a left opening is arranged in the box body, and the right end of the threaded rod is in threaded connection with the threaded cavity; a second transmission cavity with a right opening is formed in the inner wall of the right side of the closed cavity, the second transmission cavity is located on the upper side of the first transmission cavity, a second gear shaft is rotatably arranged in the second transmission cavity, the left end of the second gear shaft extends into the closed cavity and is fixedly connected with a fourth bevel gear, and the fourth bevel gear can be meshed with the first bevel gear; a steel wire rope is wound between the first gear shaft and the second gear shaft, a first wire groove and a second wire groove are communicated between the second transmission cavity and the first transmission cavity, the second wire groove is positioned on the left side of the first wire groove, the steel wire rope respectively penetrates through the first wire groove and the second wire groove, and control devices are arranged in the first wire groove and the second wire groove; the time delay device comprises a cylinder arranged on the right side of the moving rod, a piston cavity is arranged in the cylinder, a piston is slidably arranged in the piston cavity, the left end of the piston is fixedly connected with the moving rod, the piston divides the piston cavity into a left part and a right part, the air pressure on the left side and the right side of the initial state is consistent with the atmospheric pressure, and a first gas valve and a second gas valve are respectively arranged at the left end and the right end of the upper side of the cylinder; when the cylinder slides rightwards, the piston and the cylinder slide leftwards relatively, so that the air pressure on the left side of the piston is increased, the piston slides rightwards under the pushing of high air pressure, at the moment, two air valves are opened simultaneously, air is inflated and deflated, the piston can slide stably and finally stops, and at the moment, the first bevel gear is meshed with the second bevel gear; the transmission device comprises a first sliding cavity communicated with the inner wall of the right side of the closed cavity, a transmission rod is arranged in the first sliding cavity in a sliding manner, a first rack is fixedly connected to the upper end of the transmission rod, a gear cavity is arranged in the inner wall of the upper side of the first sliding cavity in a communicated manner, a fixed shaft is rotatably connected between the front inner wall and the rear inner wall of the gear cavity, a fixed shaft gear is fixedly connected onto the fixed shaft and meshed with the first rack, a second sliding cavity is arranged in the inner wall of the upper side of the gear cavity in a communicated manner, a sliding rod is arranged in the second sliding cavity in a left-right sliding manner, the right end of the sliding rod is fixedly connected to the box body block, a second rack is fixedly connected to the lower end of the sliding rod, and the second rack is; the starting device comprises a fixed rod fixedly connected to the left end face of the motor, the left end of the fixed rod is fixedly connected with a first button, and the inner wall of the right side of the closed cavity is fixedly connected with a second button; the steel wire rope in the first wire groove is fixedly connected with a first square block, the inner wall of the right side of the first wire groove is provided with a first detection block facing the first square block, the steel wire rope in the second wire groove is fixedly connected with a second square block, the inner wall of the left side of the second wire groove is provided with a second detection block facing the second square block, when the first square block in the first wire groove rises and is detected by the first detection block, the electromagnet is electrified, and when the second square block in the second wire groove falls and is detected by the second detection block, the electromagnet is powered off; the upper side of the box body block is rotatably connected with a positioning rod, the positioning rod plays a role in positioning the sliding of the box body block, the right side of the box body block is provided with a limiting block fixedly connected to the upper side of the box body block, and the limiting block can play a role in limiting the sliding of the box body block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910380818.3A CN110075443B (en) | 2019-05-08 | 2019-05-08 | Falling protector capable of automatically contracting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910380818.3A CN110075443B (en) | 2019-05-08 | 2019-05-08 | Falling protector capable of automatically contracting |
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| Publication Number | Publication Date |
|---|---|
| CN110075443A CN110075443A (en) | 2019-08-02 |
| CN110075443B true CN110075443B (en) | 2020-10-23 |
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ID=67419280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910380818.3A Active CN110075443B (en) | 2019-05-08 | 2019-05-08 | Falling protector capable of automatically contracting |
Country Status (1)
| Country | Link |
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| CN (1) | CN110075443B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205132735U (en) * | 2015-10-15 | 2016-04-06 | 江阴市华硕机械制造有限公司 | Wire rope is around rolling up ware |
| CN108187261A (en) * | 2018-01-31 | 2018-06-22 | 谢秀铅 | A kind of contraction type high-altitude operation safety protector |
| CN108926786A (en) * | 2018-09-27 | 2018-12-04 | 山东华宇工学院 | A kind of self-service rescue outfit in high-altitude |
| CN109209210A (en) * | 2018-08-21 | 2019-01-15 | 毛桂女 | Winding mechanism and its application method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08215326A (en) * | 1995-02-15 | 1996-08-27 | Polymer Giya Kk | Fall preventing device |
-
2019
- 2019-05-08 CN CN201910380818.3A patent/CN110075443B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205132735U (en) * | 2015-10-15 | 2016-04-06 | 江阴市华硕机械制造有限公司 | Wire rope is around rolling up ware |
| CN108187261A (en) * | 2018-01-31 | 2018-06-22 | 谢秀铅 | A kind of contraction type high-altitude operation safety protector |
| CN109209210A (en) * | 2018-08-21 | 2019-01-15 | 毛桂女 | Winding mechanism and its application method |
| CN108926786A (en) * | 2018-09-27 | 2018-12-04 | 山东华宇工学院 | A kind of self-service rescue outfit in high-altitude |
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| CN110075443A (en) | 2019-08-02 |
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Effective date of registration: 20230407 Address after: Unit 907, Floor 9, No. 301-1, Tongji South Road, Jimei District, Xiamen, Fujian Province, 361000 Patentee after: Xiamen poku Intelligent Technology Co.,Ltd. Address before: Room 402, 4 / F, building 1, 1032 Jiuling West Road, Xicheng street, Yongkang City, Jinhua City, Zhejiang Province 321000 Patentee before: Yongkang Weiwei Intelligent Technology Co.,Ltd. |
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