CN112120368A - Intelligent bending umbrella and working method and control system thereof - Google Patents

Intelligent bending umbrella and working method and control system thereof Download PDF

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Publication number
CN112120368A
CN112120368A CN202011139931.1A CN202011139931A CN112120368A CN 112120368 A CN112120368 A CN 112120368A CN 202011139931 A CN202011139931 A CN 202011139931A CN 112120368 A CN112120368 A CN 112120368A
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CN
China
Prior art keywords
umbrella
bending
intelligent
rod
module
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
Application number
CN202011139931.1A
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Chinese (zh)
Inventor
叶林
朱昌平
肖杨
李子涵
余苏南
杨诚鸿
崔萍
王晓敏
周宇赫
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Wanjiang Institute of Technology
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Wanjiang Institute of Technology
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Publication date
Application filed by Wanjiang Institute of Technology filed Critical Wanjiang Institute of Technology
Priority to CN202011139931.1A priority Critical patent/CN112120368A/en
Publication of CN112120368A publication Critical patent/CN112120368A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45BWALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B7/00Other sticks, e.g. of cranked shape
    • A45B7/005Other sticks, e.g. of cranked shape crank-shaped
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45BWALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B11/00Umbrellas characterised by their shape or attachment
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45BWALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B19/00Special folding or telescoping of umbrellas
    • A45B19/08Special folding or telescoping of umbrellas with collapsible sticks
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45BWALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B25/00Details of umbrellas
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423Input/output
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45BWALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B25/00Details of umbrellas
    • A45B2025/003Accessories not covered by groups A45B25/24 - A45B25/30

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)

Abstract

The invention belongs to the technical field of daily living appliances, and particularly relates to an intelligent bending umbrella, and a working method and a control system thereof. This intelligence umbrella of buckling includes: an umbrella cap; an umbrella handle; an umbrella rod; and the bending device is arranged on the umbrella rod so as to adjust the bending degree of the umbrella rod. The bending degree of the umbrella rod is adjusted by adjusting the bending device of the umbrella rod, so that the umbrella rod is matched with the current weather condition, the body of the umbrella cap can be fully covered, and the using effect of the umbrella is improved.

Description

Intelligent bending umbrella and working method and control system thereof
Technical Field
The invention belongs to the technical field of daily living appliances, and particularly relates to an intelligent bending umbrella, and a working method and a control system thereof.
Background
When the umbrella is used, the umbrella cannot be fully utilized. Even if the umbrella is independently opened, part of the umbrella body can still be uncovered and still be wetted by rainwater. Especially, when carrying a schoolbag or other articles with a large volume, the umbrella can only cover a part of the body, most of the umbrella cannot be utilized, and the best using effect of the umbrella cannot be achieved.
Disclosure of Invention
The invention provides an intelligent bending umbrella, a working method thereof and a control system.
In order to solve the above technical problem, the present invention provides an intelligent bending umbrella, comprising: a bendable umbrella rod; and the bending device is arranged on the umbrella rod so as to adjust the bending degree of the umbrella rod.
Further, the processor module is connected with a network data sensor to acquire weather conditions from the Ethernet.
Further, the umbrella rod comprises at least three sections of hollow rods which are sequentially connected from top to bottom through bearings; wherein the bending device comprises: the trigger piece and the locking piece are used for respectively enabling the bearings to be in a locking state; the trigger part is suitable for opening each locking part, so that each bearing drives the corresponding hollow rod to rotate when rotating, namely, the bending degree of the umbrella rod is adjusted.
Further, the lock member includes: the spring, a clamping needle mounting seat connected with the spring, a clamping needle positioned on the clamping needle mounting seat, a locking sheet positioned on the outer side of the bearing and clamping grooves distributed on the outer side of the locking sheet; the clamping pins are suitable for being clamped into the corresponding clamping grooves, so that the bearing is in a locking state.
Further, the trigger piece comprises a sheet buckle connected with each clamping needle through a rope; the sheet buckle is pushed upwards, and the rope pulls each clamping needle to be separated from the corresponding clamping groove, so that each locking piece is opened.
Further, the sheet buckle is suitable for being driven by a driving motor controlled by the processor module; the processor module is connected with a network data sensor to acquire weather conditions from the Ethernet and control the bending device to adjust the bending degree of the umbrella rod according to the weather conditions.
Further, the processor module is connected with a GSM module to forward weather conditions to the user terminal; the intelligent bending umbrella further comprises a display module positioned on the umbrella handle and used for displaying weather conditions; the intelligent bending umbrella further comprises a lighting device arranged on the umbrella handle and used for prompting to take the umbrella.
Furthermore, the intelligent bending umbrella further comprises a reminding module connected with the processor module; the reminding module comprises: the human body infrared sensor is positioned on the umbrella handle; the human body infrared sensor is suitable for detecting whether a user exists around the umbrella handle; the processor module is adapted to control the speaker to alert a user; the display module is further adapted to display warning information.
Further, the umbrella is buckled to intelligence still includes: a power supply module; the power supply module includes: the intelligent folding umbrella comprises a lithium battery for supplying power to the intelligent folding umbrella, a solar power supply module and an external power supply module, wherein the solar power supply module and the external power supply module are respectively connected with the lithium battery; wherein the solar power module comprises: the solar cell panel is attached above the umbrella cap, and the charging manager is connected with the solar cell panel; the charging manager is connected with the lithium battery.
In a second aspect, the present invention further provides an intelligent bending umbrella system, comprising: ethernet, user terminal, intelligent bending umbrella as described above; the intelligent bending umbrella is suitable for being acquired from the Ethernet so as to control the bending device to adjust the bending degree of the umbrella rod; the intelligent bending umbrella is suitable for forwarding weather conditions to a user terminal.
In a third aspect, the invention further provides a working method of the intelligent bending umbrella, and the processor module of the intelligent bending umbrella is suitable for adjusting the bending degree of the umbrella rod through the bending device.
The intelligent bending umbrella and the working method and the control system thereof have the advantages that the bending degree of the umbrella rod is adjusted by adjusting the bending device of the umbrella rod, so that the umbrella cap can fully cover the body, and the using effect of the umbrella is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of an intelligent bending umbrella of the present invention;
FIG. 2 is a schematic view of the construction of the bending apparatus of the present invention;
FIG. 3 is a functional block diagram of the intelligent bending umbrella of the present invention;
FIG. 4 is a schematic view of the construction of the umbrella handle of the present invention;
in the figure: the umbrella comprises an umbrella cap 1, an umbrella rod 2, a first hollow rod 21, a second hollow rod 22, a third hollow rod 23, an umbrella handle 3, a bending device 4, a trigger 41, a sheet buckle 411, a rope 412, a locking piece 42, a spring 421, a clamping needle mounting seat 422, a clamping needle 423, a locking sheet 424, a clamping groove 425, a first bearing 51, a second bearing 52, a processor module 6, a key module 61, a display module 62, a lighting device 63, a human body infrared sensor 64, a lithium battery 65, a solar cell panel 651 and an external power supply interface 652.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Since the existing umbrella cannot be sufficiently shielded, as shown in fig. 1 to 4, this embodiment 1 provides an intelligent bending umbrella, which includes: the umbrella comprises an umbrella cap 1, a bendable umbrella rod 2 and an umbrella handle 3; and a bending device 4 mounted on the umbrella shaft 2 to adjust the bending degree of the umbrella shaft 2.
As an alternative embodiment of the bending device.
Referring to fig. 2, the umbrella shaft 2 may be at least three hollow rods sequentially connected from top to bottom through a bearing, for example, the number of the hollow rods is three, that is, a first hollow rod 21, a second hollow rod 22, and a third hollow rod 23, wherein the first hollow rod 21 is connected to the cap of the umbrella, the first hollow rod 21 is connected to the second hollow rod 22 through a first bearing 51, the second hollow rod 22 is connected to the third hollow rod 23 through a second bearing 52, and the third hollow rod 23 is connected to the handle of the umbrella, so that the degree of bending of the umbrella shaft can be adjusted by only adjusting the inclinations of the first hollow rod 21 and the second hollow rod 22.
Alternatively, see fig. 2, the bending device 4 comprises: a trigger 41, a lock 42 for locking each bearing; the trigger member 41 is adapted to open each locking member 42 so that each bearing, when rotated, causes the corresponding hollow shaft to rotate, i.e. to adjust the degree of curvature of the shaft.
Alternatively, referring to fig. 2, the locking member 42 includes: the spring 421, a needle clamping mounting seat 422 connected with the spring 421, a needle clamping 423 positioned on the needle clamping mounting seat 422, a locking sheet 424 positioned outside the bearing, and clamping grooves 425 distributed outside the locking sheet 424; the locking pins 423 are adapted to be locked into the corresponding locking slots 425 to lock the bearing 5. Preferably, a sliding groove for sliding the latch needle is formed in the hollow rod, the spring 421 is located at the bottom of the sliding groove, and when the latch needle 423 is disengaged from the corresponding latching groove 425, the spring is in a compressed state.
Optionally, referring to fig. 2, the trigger 41 includes a tab 411 connected to each latch 423 via a cord 412; the tab 411 is pushed upward, and the rope 412 pulls each clip 423 out of the corresponding clip groove 425, i.e., opens each locking member.
Specifically, as shown in fig. 2, the tab buckle 411 may be installed on the installation seat of the first clip, and the tab buckle may be pulled upwards by a hand or a driving motor to open the first bearing 51, and meanwhile, the second clip may be pulled by a rope to open the second bearing 52, and at this time, the corresponding bearing may be driven to rotate by a hand or a bearing motor to adjust the bending degree of the umbrella stick.
The mode that the piece was detained and is driven through driving motor specifically as follows:
further, as shown in fig. 1 and 3, the sheet buckle is suitable for being driven by a driving motor controlled by the processor module 6; the processor module is connected with a network data sensor to acquire weather conditions from the Ethernet and control the bending device to adjust the bending degree of the umbrella rod according to the weather conditions.
Optionally, the processor module 6 adopts a single chip microcomputer MSP430F149 with a fast PWM wave generator, and has the characteristic of low power consumption.
Specifically, the weather conditions include: local geographical location, outdoor temperature, weather change information (such as rainfall, wind speed, wind direction, etc.) within 12 hours in the future. The processor module is connected with a direction sensor to detect the direction of the intelligent bending umbrella, then the bending device 4 is controlled to adjust the bending degree of the umbrella rod 2 to be reversely matched with the wind direction, and the proper bending degree is determined according to the rainfall and the wind speed, namely, the bending degree of the umbrella rod is ensured to be matched with the current weather condition. Certainly, the new umbrella used for the first time is automatically adjusted by a basic database on the cloud server connected with the Ethernet; after the mobile terminal is used for multiple times, the cloud server can automatically store the use data of each time to form a habit database of a user, and then more matched warning information is made.
As an alternative to obtaining weather conditions.
Referring to fig. 3, the processor module is connected with a network data sensor to acquire weather conditions from the ethernet; the processor module is connected with a GSM module to forward weather conditions to a user terminal.
Optionally, the GSM module uses an integrated chip GTM900-C to perform serial communication with the processor module 6.
Optionally, the intelligent folding umbrella further comprises a display module located on the umbrella handle for displaying weather conditions.
As an alternative to obtaining weather conditions.
The weather conditions may also be sent to the processor module by using a terminal or input to the processor module by a human-computer interaction machine. See fig. 4, the human-machine interface includes, but is not limited to, a key module 61 (for manually inputting the degree of curvature of the umbrella stick) on the umbrella stick 3, a display module 62, and the like.
The mode that the processor module acquires the weather conditions is not limited to the two modes, and the bending degree of the umbrella rod can be actively controlled by adopting an early warning mode to adjust the bending device. And the bending degree of the umbrella rod can be manually and automatically input according to the requirement. Of course, the degree of curvature of the shaft can also be adjusted manually by manual means.
Further, as shown in fig. 4, the intelligent folding umbrella further comprises a lighting device 63 mounted on the umbrella handle 3 for prompting to take the umbrella. The control module can adjust the color of the light according to the weather conditions and form a corresponding database so as to form the use habit of a user. If green light indicates that the umbrella is not needed, yellow light indicates that the umbrella is selected by the user, and red light indicates that the umbrella is needed.
Further, as shown in fig. 1 and 4, the intelligent folding umbrella further comprises a reminding module connected with the processor module; the reminding module comprises: a speaker and a human body infrared sensor 64 positioned on the umbrella handle 3; the human body infrared sensor 64 is adapted to detect the presence of a user around the umbrella shaft 3; the processor module is adapted to control the speaker to alert a user. And the display module is also suitable for displaying warning information. Optionally, the warning information includes, but is not limited to, weather conditions at present and in 12 hours in the future, whether to suggest to carry an umbrella, and the like, and when the user approaches the umbrella within a range of 2 meters, the display module, the reminding module and the lighting device will work.
Further, as shown in fig. 1 and 4, the intelligent bending umbrella further comprises: a power supply module; the power supply module includes: the intelligent folding umbrella comprises a lithium battery 65 for supplying power to the intelligent folding umbrella, a solar power supply module and an external power supply module, wherein the solar power supply module and the external power supply module are respectively connected with the lithium battery 65; wherein the solar power module comprises: a solar cell panel 651 attached above the umbrella cap 1, and a charging manager connected to the solar cell panel; the charge manager is connected to a lithium battery 65. The external power supply module includes an external power interface 652 connected to the lithium battery 65 for charging.
Example 2
On the basis of embodiment 1, referring to fig. 3, embodiment 2 provides an intelligent bending umbrella control system, comprising: ethernet (or cloud server), user terminal, intelligent bending umbrella as described above; the intelligent bending umbrella is suitable for being acquired from the Ethernet so as to control the bending device to adjust the bending degree of the umbrella rod; the intelligent bending umbrella is suitable for forwarding weather conditions to a user terminal.
Optionally, the user terminal is, for example, but not limited to, a mobile phone, a computer, a tablet, and the like.
Example 3
On the basis of embodiment 1, this embodiment 3 provides a working method of an intelligent bending umbrella, in which a processor module of the intelligent bending umbrella is adapted to adjust the bending degree of an umbrella shaft through a bending device.
In conclusion, the intelligent bending umbrella, the working method and the control system thereof adjust the bending degree of the umbrella rod by adjusting the bending device of the umbrella rod so as to match the umbrella rod with the current weather condition, so that the umbrella cap can fully cover the body, and the using effect of the umbrella is improved; the processor module and the network data sensor realize that the weather change condition in the future 12 hours is extracted from the Ethernet, the manual input and query are not needed, and the user is reminded through the display module and the lighting device; the solar battery is used for supplying power, so that the power supply problem that no external power supply is used for supplementing the electric energy when the solar battery is carried or transported outdoors is solved; the reminding information is sent to the using terminal and the sound reminding of the reminding module is combined, so that the patient can be reminded of taking an umbrella or taking medicine in time in various modes.
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 (10)

1. The utility model provides an umbrella is buckled to intelligence which characterized in that includes:
a bendable umbrella rod;
and the bending device is arranged on the umbrella rod so as to adjust the bending degree of the umbrella rod.
2. The intelligent bending umbrella of claim 1,
the umbrella rod comprises at least three sections of hollow rods which are sequentially connected from top to bottom through bearings; wherein
The bending apparatus includes: the trigger piece and the locking piece are used for respectively enabling the bearings to be in a locking state;
the triggering member being adapted to open each locking member so that each bearing, when rotated, drives the corresponding hollow rod in rotation, i.e. in that way
The bending degree of the umbrella rod is adjusted.
3. The intelligent bending umbrella of claim 2,
the lock member includes: the spring, a clamping needle mounting seat connected with the spring, a clamping needle positioned on the clamping needle mounting seat, a locking sheet positioned on the outer side of the bearing and clamping grooves distributed on the outer side of the locking sheet;
the clamping pins are suitable for being clamped into the corresponding clamping grooves, so that the bearing is in a locking state.
4. The intelligent bending umbrella of claim 3,
the trigger piece comprises a sheet buckle connected with each clamping needle through a rope;
the sheet buckle is pushed upwards, and the rope pulls each clamping needle to be separated from the corresponding clamping groove, namely
And opening each locking piece.
5. The intelligent bending umbrella of claim 4,
the sheet buckle is suitable for being driven by a driving motor controlled by the processor module;
the processor module is connected with a network data sensor to acquire weather conditions from the Ethernet and control the bending device to adjust the bending degree of the umbrella rod according to the weather conditions.
6. The intelligent bending umbrella of claim 5,
the processor module is connected with a GSM module to forward weather conditions to a use terminal;
the intelligent bending umbrella further comprises a display module positioned on the umbrella handle and used for displaying weather conditions;
the intelligent bending umbrella further comprises a lighting device arranged on the umbrella handle and used for prompting to take the umbrella.
7. The intelligent bending umbrella of claim 5,
the intelligent bending umbrella further comprises a reminding module connected with the processor module;
the reminding module comprises: the human body infrared sensor is positioned on the umbrella handle;
the human body infrared sensor is suitable for detecting whether a user exists around the umbrella handle;
the processor module is adapted to control the speaker to alert a user;
the display module is further adapted to display warning information.
8. The intelligent bending umbrella of claim 5,
umbrella is buckled to intelligence still includes: a power supply module;
the power supply module includes: the intelligent folding umbrella comprises a lithium battery for supplying power to the intelligent folding umbrella, a solar power supply module and an external power supply module, wherein the solar power supply module and the external power supply module are respectively connected with the lithium battery; wherein
The solar power supply module includes: the solar cell panel is attached above the umbrella cap, and the charging manager is connected with the solar cell panel;
the charging manager is connected with the lithium battery.
9. The utility model provides an umbrella control system is buckled to intelligence which characterized in that includes:
an Ethernet, a user terminal, the intelligent folding umbrella of claim 5;
the intelligent bending umbrella is suitable for being acquired from the Ethernet so as to control the bending device to adjust the bending degree of the umbrella rod;
the intelligent bending umbrella is suitable for forwarding weather conditions to a user terminal.
10. A working method of an intelligent bending umbrella, which is characterized in that,
the intelligent bending umbrella is suitable for adjusting the bending degree of an umbrella rod through a bending device.
CN202011139931.1A 2020-10-22 2020-10-22 Intelligent bending umbrella and working method and control system thereof Pending CN112120368A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011139931.1A CN112120368A (en) 2020-10-22 2020-10-22 Intelligent bending umbrella and working method and control system thereof

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Application Number Priority Date Filing Date Title
CN202011139931.1A CN112120368A (en) 2020-10-22 2020-10-22 Intelligent bending umbrella and working method and control system thereof

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Publication Number Publication Date
CN112120368A true CN112120368A (en) 2020-12-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114652065A (en) * 2022-01-28 2022-06-24 浙江工业大学 Intelligent anti-interference autonomous following suspension umbrella

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1527012A (en) * 1976-03-26 1978-10-04 Fulton A Pivotal connector device for umbrellas
CN2236769Y (en) * 1995-06-12 1996-10-09 赵茂 Universal accentric support type en-toutcas
CN1149661A (en) * 1995-08-21 1997-05-14 宋寅权 Hinge for folding ladder
CN2774233Y (en) * 2004-09-17 2006-04-26 汤升林 Foldable umbrella
CN104442314A (en) * 2014-11-24 2015-03-25 李洪 Automobile escape skylight
CN205390602U (en) * 2016-03-04 2016-07-27 深圳市兼明科技有限公司 Intelligence umbrella with acquire weather information function
CN206365563U (en) * 2017-01-10 2017-08-01 福建金坛实业有限公司 A kind of intelligent umbrella of angle rotatable
CN208192399U (en) * 2018-03-20 2018-12-07 安徽大学 A kind of intelligent umbrella
CN109466284A (en) * 2018-12-04 2019-03-15 广东机电职业技术学院 Car emergency vehicle window
CN110422095A (en) * 2019-09-06 2019-11-08 重庆宏立至信科技发展集团股份有限公司 Front-row seats of vehicle installs back small table plate component additional

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1527012A (en) * 1976-03-26 1978-10-04 Fulton A Pivotal connector device for umbrellas
CN2236769Y (en) * 1995-06-12 1996-10-09 赵茂 Universal accentric support type en-toutcas
CN1149661A (en) * 1995-08-21 1997-05-14 宋寅权 Hinge for folding ladder
CN2774233Y (en) * 2004-09-17 2006-04-26 汤升林 Foldable umbrella
CN104442314A (en) * 2014-11-24 2015-03-25 李洪 Automobile escape skylight
CN205390602U (en) * 2016-03-04 2016-07-27 深圳市兼明科技有限公司 Intelligence umbrella with acquire weather information function
CN206365563U (en) * 2017-01-10 2017-08-01 福建金坛实业有限公司 A kind of intelligent umbrella of angle rotatable
CN208192399U (en) * 2018-03-20 2018-12-07 安徽大学 A kind of intelligent umbrella
CN109466284A (en) * 2018-12-04 2019-03-15 广东机电职业技术学院 Car emergency vehicle window
CN110422095A (en) * 2019-09-06 2019-11-08 重庆宏立至信科技发展集团股份有限公司 Front-row seats of vehicle installs back small table plate component additional

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114652065A (en) * 2022-01-28 2022-06-24 浙江工业大学 Intelligent anti-interference autonomous following suspension umbrella

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Application publication date: 20201225

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