CN108308807A - A kind of field survivorship crutch - Google Patents
A kind of field survivorship crutch Download PDFInfo
- Publication number
- CN108308807A CN108308807A CN201810122152.7A CN201810122152A CN108308807A CN 108308807 A CN108308807 A CN 108308807A CN 201810122152 A CN201810122152 A CN 201810122152A CN 108308807 A CN108308807 A CN 108308807A
- Authority
- CN
- China
- Prior art keywords
- tube body
- left end
- right end
- crutch
- depository dish
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B3/00—Sticks combined with other objects
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B3/00—Sticks combined with other objects
- A45B3/02—Sticks combined with other objects with illuminating devices
- A45B3/04—Sticks combined with other objects with illuminating devices electrical
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B9/00—Details
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B9/00—Details
- A45B9/02—Handles or heads
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B9/00—Details
- A45B9/04—Ferrules or tips
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
- A45B9/00—Details
- A45B2009/005—Shafts
- A45B2009/007—Shafts of adjustable length, e.g. telescopic shafts
Landscapes
- Rehabilitation Tools (AREA)
Abstract
The present invention relates to the technical fields of field tool auxiliary equipment, and more particularly to a kind of field survivorship crutch, functional diversities can be convenient for carrying and reduced using limitation with adjustment length, can cope with changeable field survivorship environment, improve use reliability；And in case of emergency, convenient to get in touch in time with rescue group, reduction security risk improves practicability；Including upper tube body, lower tube body, supporting rod, depository dish, handle, two groups of connecting rods, pressing plate and controller, depository dish is internally provided with placed cavity, and the partition board occurred is set in placed cavity, placed cavity is divided into left chamber and right chamber by partition board, supply unit is provided in left chamber, positioning device, central processing unit and signal receiving/transmission device, rope is provided in right chamber, it further include gag lever post, limiting plate, first spring, mandril, second spring and fixed link, it is provided with internal thread structure on the madial wall of lower tube body, it is provided with external thread structure on the outer wall of supporting rod.
Description
Technical field
The present invention relates to the technical fields of field tool auxiliary equipment, more particularly to a kind of field survivorship crutch.
Background technology
It is well known that nowadays with the development of society, requiring also higher and higher for teen-age, however present blueness is few
Year necessary not only for the task of finishing school, should more advocate student and the more participate in outside activities, knowledge is become a kind of experience, existing
Student much all live in city, cannot be got close to the Nature so that the thing acquired on books is more inflexible, so existing
Carry out some extracurricular activities related with the Nature there is some activities that can organize the student, field survivorship crutch be it is a kind of in the wild
The auxiliary tool used in survival activity, in the wild activity, tourism field in be widely used in a variety of applications；Existing field
Existence crutch includes handle and supporting rod, and handle is mounted on the top of supporting rod；Existing field survivorship crutch is in use, pass through
Supporting rod is supported convenient for climbing；Find exist much in field survivorship activity in existing field survivorship crutch use
Uncertain factor, and its function is more single, length is fixed, it has not been convenient to carry and use there are limitations, can not successfully manage more
The wild environment of change causes use reliability relatively low；And the case where being frequently present of independent action in field survivorship activity, once
Emergency is met with, can not be got in touch in time with rescue group, there are some potential safety problemss, cause practicability relatively low.
Invention content
In order to solve the above technical problems, the present invention provides a kind of functional diversities, it can be convenient for carrying and drop with adjustment length
It is low to use limitation, changeable field survivorship environment can be coped with, use reliability is improved；And in case of emergency,
It is convenient to get in touch in time with rescue group, security risk is reduced, the field survivorship crutch of practicability is improved.
A kind of field survivorship crutch of the present invention, including upper tube body, lower tube body, supporting rod, depository dish, handle, two groups of companies
Extension bar and pressing plate, the bottom end of the handle and the top middle portion of depository dish connect, the top of the upper tube body and the bottom of depository dish
The connection of end middle part, the depository dish is internally provided with placed cavity, and the partition board occurred is arranged in placed cavity, the partition board
Placed cavity is divided into left chamber and right chamber, supply unit is provided in the left chamber, rope is provided in the right chamber,
The right end of depository dish, which is provided with, picks and places mouth, and is provided with door-plate, the top of the door-plate and the right end of depository dish at picking and placeing mouthful
Top is connected through the hinge, and the bottom end of door-plate and the right end bottom of depository dish are connected by a snap, described to pick and place mouth and right chamber
It communicating, the outer diameter of the lower tube body and the internal diameter of upper tube body match, and the top of lower tube body is inserted into the bottom inner portion of upper tube body,
Left side inside the upper tube body is provided with the limiting slot of vertical direction, and gag lever post is provided in limiting slot, the limit
Bar can slide up and down in limiting slot, and the right end of gag lever post is fixedly connected with the left end of lower tube body, upper tube body right side wall
It is internally provided with the cavity of vertical direction, and is provided with limiting plate and multigroup first spring in cavity, multigroup first bullet
The left end of spring is connect with the left side wall of cavity, and the right end of multigroup first spring is connect with the left end of limiting plate, the limit
The right end of plate is contacted with the right side wall of cavity, and spaced set has multigroup mandril, upper tube to the left end of limiting plate in the vertical direction
It is equidistantly provided with multigroup limit hole communicated with cavity on the right side wall in internal portion, the left end of multigroup mandril is located at
In multigroup limit hole, the right end of upper tube body is provided with two groups of through-holes communicated with cavity, and the left ends of two groups of connecting rods is from upper
The right end of tube body is each passed through two groups of through-holes and stretches in cavity and connect with the right end of limiting plate, the right end point of two groups of connecting rods
It is not connect with the top and bottom of pressing plate left end, is provided with mounting groove at the top of the right end of the lower tube body, and set in mounting groove
It is equipped with second spring and fixed link, the left end and right end of the second spring left side with the left side wall of mounting groove and fixed link respectively
The right end of end connection, the fixed link extend out to outside mounting groove and is inserted into one group of limit hole, is set on the madial wall of lower tube body
It is equipped with internal thread structure, external thread structure is provided on the outer wall of the supporting rod, the top of supporting rod is inserted into and spiral shell is filled to down
The bottom inner portion of tube body；Further include controller, the controller installs the top of depository dish, and positioning is provided in the left chamber
Device, central processing unit and signal receiving/transmission device, the controller, positioning device, central processing unit and signal receiving/transmission device are equal
It is electrically connected with supply unit, and positioning device and signal receiving/transmission device are electrically connected with central processing unit, controller and signal
R-T unit is electrically connected.
A kind of field survivorship crutch of the present invention, further includes LED illumination lamp, and the LED illumination lamp is mounted on a left side for handle
End top, the supply unit and controller are electrically connected with LED illumination lamp.
A kind of field survivorship crutch of the present invention, the signal receiving/transmission device and neighbouring rescue base station are two-way by radio
Connection.
A kind of field survivorship crutch of the present invention, the left end bottom of the supporting rod are provided with storage groove, and in storage groove
It is hinged by shaft and torsional spring to be inside provided with reaping hook, the bottom end of the reaping hook and the bottom end of storage groove.
A kind of field survivorship crutch of the present invention, further includes potential device, and the left end of the depository dish is provided with charging and inserts
Mouth and USB jack, the charging socket and USB jack are electrically connected by the potential device with supply unit.
A kind of field survivorship crutch of the present invention, the bottom end of the supporting rod is provided with rubber pad.
A kind of field survivorship crutch of the present invention, the length of the mandril and the length of limit hole match, the limit
The distance between left end and cavity left side wall of plate are more than the distance between left end and limit hole left end of mandril.
Beneficial effects of the present invention are compared with prior art：By above-mentioned setting, rope can be stored by depository dish
Equal fields small tool, functional diversities, and by rotary supporting rod, lower tube body and the length between supporting rod are adjusted, lead to
It crosses and presses pressing plate, pressing plate pushes limiting plate, limiting plate to compress multigroup first spring and push mandril to the left by two groups of connecting rods
It being moved to the left, fixed link is pushed to be moved to the left for the left end of one of which mandril until the right end of fixed link just removes limit hole,
It can make upper tube body and the opposite sliding of lower tube body at this time, after being adjusted to suitable length, unclamp pressing plate, fix upper tube body
And small range moves up and down lower tube body, and the right end of fixed link is made to be inserted into one group of nearest limit under the action of second spring elastic force
, will be fixed between upper tube body and lower tube body in the hole of position, it is convenient that its whole length is adjusted, it is convenient for carrying, and can root
Its whole length is adjusted according to different environment, improves use reliability；Location information is obtained at any time by positioning device, and will
Location information passes to central processing unit and is handled, and when an emergency situation is encountered, can pass through controller enabling signal
Location information in central processing unit is sent to neighbouring rescue base station by R-T unit, convenient to obtain connection with rescue group in time
System reduces security risk, improves practicability.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention；
Fig. 2 is the planar structure schematic diagram of the present invention；
Fig. 3 is the cross section structure schematic diagram of upper tube body of the present invention and lower tube body junction；
It is marked in attached drawing：1, upper tube body；2, lower tube body；3, supporting rod；4, depository dish；5, handle；6, connecting rod；7, pressing plate；8、
Partition board；9, supply unit；10, rope；11, door-plate；12, limiting slot；13, gag lever post；14, cavity；15, limiting plate；16, first
Spring；17, mandril；18, limit hole；19, second spring；20, fixed link；21, controller；22, LED illumination lamp；23, it stores
Slot；24, reaping hook；25, rubber pad.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
As shown in Figure 1 to Figure 3, a kind of field survivorship crutch of the invention, including upper tube body 1, lower tube body 2, supporting rod 3,
Depository dish 4,5, two groups of connecting rods 6 of handle and pressing plate 7, the bottom end of handle and the top middle portion of depository dish connect, the top of upper tube body
End is connect with the center bottom of depository dish, and depository dish is internally provided with placed cavity, and be arranged in placed cavity occur every
Placed cavity is divided into left chamber and right chamber by plate 8, partition board, and supply unit 9 is provided in left chamber, rope is provided in right chamber
10, the right end of depository dish, which is provided with, picks and places mouth, and is provided with door-plate 11, the top of door-plate and the right end of depository dish at picking and placeing mouthful
Top is connected through the hinge, and the bottom end of door-plate and the right end bottom of depository dish are connected by a snap, and are picked and placeed mouth and are communicated with right chamber,
The outer diameter of lower tube body and the internal diameter of upper tube body match, and the top of lower tube body is inserted into the bottom inner portion of upper tube body, in upper tube body
It is provided with the limiting slot 12 of vertical direction on the left of portion, and is provided with gag lever post 13 in limiting slot, gag lever post can be in limiting slot
It inside slides up and down, and the right end of gag lever post is fixedly connected with the left end of lower tube body, being internally provided with for upper tube body right side wall is perpendicular
Histogram to cavity 14, and limiting plate 15 and multigroup first spring 16 are provided in cavity, the left end of multigroup first spring is equal
It is connect with the left side wall of cavity, the right end of multigroup first spring is connect with the left end of limiting plate, the right end and cavity of limiting plate
Right side wall contact, spaced set has multigroup mandril 17, the right side inside upper tube body to the left end of limiting plate in the vertical direction
Multigroup limit hole 18 communicated with cavity is equidistantly provided on wall, the left end of multigroup mandril is located in multigroup limit hole,
The right end of upper tube body is provided with two groups of through-holes communicated with cavity, and the left end of two groups of connecting rods is each passed through from the right end of upper tube body
Two groups of through-holes are stretched in cavity and are connect with the right end of limiting plate, the right ends of the two groups of connecting rods top with pressing plate left end respectively
It is connected with bottom, is provided with mounting groove at the top of the right end of lower tube body, and be provided with second spring 19 and fixed link in mounting groove
20, the left end and right end of second spring are connect with the left end of the left side wall of mounting groove and fixed link respectively, and the right end of fixed link is stretched
Go out to outside mounting groove and being inserted into one group of limit hole, be provided with internal thread structure on the madial wall of lower tube body, supporting rod it is outer
External thread structure is provided on wall, the bottom inner portion that simultaneously spiral shell is filled to lower tube body is inserted on the top of supporting rod；Further include controller 21,
Controller installs the top of depository dish, and positioning device, central processing unit and signal receiving/transmission device are provided in left chamber, controls
Device, positioning device, central processing unit and signal receiving/transmission device are electrically connected with supply unit, and positioning device and signal transmitting and receiving
Device is electrically connected with central processing unit, and controller is electrically connected with signal receiving/transmission device；It, can by depository dish by above-mentioned setting
To store the fields such as rope small tool, functional diversities, and by rotary supporting rod, adjust lower tube body and between supporting rod
Length, by pressing pressing plate, pressing plate pushes limiting plate, limiting plate to compress multigroup first spring simultaneously to the left by two groups of connecting rods
Mandril is pushed to be moved to the left, the left end of one of which mandril pushes fixed link to be moved to the left until the right end of fixed link just removes
Limit hole can make upper tube body and the opposite sliding of lower tube body, after being adjusted to suitable length, unclamp pressing plate at this time, fixed
It lives in tube body and small range moves up and down lower tube body, the right end of fixed link is made to be inserted under the action of second spring elastic force recently
One group of limit hole in, will be fixed between upper tube body and lower tube body, it is convenient that its whole length is adjusted, be convenient for carrying,
And its whole length can be adjusted according to different environment, improve use reliability；Position is obtained at any time by positioning device
Information, and location information is passed into central processing unit and is handled, when an emergency situation is encountered, controller can be passed through
Location information in central processing unit, is sent to neighbouring rescue base station by enabling signal R-T unit, it is convenient in time with rescue
Team gets in touch, and reduces security risk, improves practicability.
A kind of field survivorship crutch of the present invention, further includes LED illumination lamp 22, and LED illumination lamp is mounted on the left end of handle
Top, supply unit and controller are electrically connected with LED illumination lamp；It, can be at night by LED illumination lamp by above-mentioned setting
Or illuminated in dark environment, improve use reliability.
A kind of field survivorship crutch of the present invention, signal receiving/transmission device pass through the two-way company of radio with rescue base station nearby
It connects；By above-mentioned setting, practicability is improved.
A kind of field survivorship crutch of the present invention, the left end bottom of supporting rod are provided with storage groove 23, and in storage groove
It is hinged by shaft and torsional spring to be provided with reaping hook 24, the bottom end of reaping hook and the bottom end of storage groove；By above-mentioned setting, can pass through
Reaping hook removes weeds or copes with some meiofaunas, and usually reaping hook can be concealed in storage groove, conveniently be taken, and improves and uses
Reliability.
A kind of field survivorship crutch of the present invention, further includes potential device, the left end of depository dish be provided with charging socket and
USB jack, charging socket and USB jack are electrically connected by potential device with supply unit；It, can be by filling by above-mentioned setting
Electrical outlet is that supply unit charges, and can be that mobile phone etc. charges by USB jack, improve use reliability.
A kind of field survivorship crutch of the present invention, the bottom end of supporting rod is provided with rubber pad 25；By above-mentioned setting, pass through
Rubber pad improves the support effect to supporting rod, while extending its service life.
A kind of field survivorship crutch of the present invention, the length of mandril and the length of limit hole match, the left end of limiting plate
The distance between cavity left side wall is more than the distance between left end and limit hole left end of mandril；By above-mentioned setting, ensure
Fixed link can just be released limit hole by mandril, to make can be slided between upper tube body and lower tube body, improve usability.
A kind of field survivorship crutch of the present invention can store the fields unskilled labourer such as rope by depository dish at work
Tool, functional diversities, and by rotary supporting rod, lower tube body and the length between supporting rod are adjusted, by pressing pressing plate,
Pressing plate pushes limiting plate, limiting plate to compress multigroup first spring and mandril is pushed to be moved to the left to the left by two groups of connecting rods,
In the left end of one group of mandril push fixed link to be moved to the left until the right end of fixed link just removes limit hole, can make at this time
Tube body and the opposite sliding of lower tube body, after being adjusted to suitable length, unclamp pressing plate, fix upper tube body and small range or more
Mobile lower tube body, makes the right end of fixed link be inserted under the action of second spring elastic force in one group of nearest limit hole, will be upper
It is fixed between tube body and lower tube body, it is convenient that its whole length is adjusted, it is convenient for carrying, and can be according to different environment
Adjust its whole length, location information obtained by positioning device at any time, and by location information pass to central processing unit into
Row processing, can be by controller enabling signal R-T unit, by determining in central processing unit when an emergency situation is encountered
Position information is sent to neighbouring rescue base station, convenient to get in touch in time with rescue group, reduces security risk, can pass through reaping hook
It removes weeds or copes with some meiofaunas, usually reaping hook can be concealed in storage groove, conveniently be taken.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications, these improvements and modifications can also be made
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of field survivorship crutch, which is characterized in that including upper tube body（1）, lower tube body（2）, supporting rod（3）, depository dish
（4）, handle（5）, two groups of connecting rods（6）And pressing plate（7）, the handle（5）Bottom end and depository dish（4）Top middle portion connect
It connects, the upper tube body（1）Top and depository dish（4）Center bottom connection, the depository dish（4）Be internally provided with placement
Chamber, and the partition board occurred is set in placed cavity（8）, the partition board（8）Placed cavity is divided into left chamber and right chamber, it is described
Supply unit is provided in left chamber（9）, rope is provided in the right chamber（10）, depository dish（4）Right end be provided with and take
It puts mouth, and door-plate is provided at picking and placeing mouthful（11）, the door-plate（11）Top and depository dish（4）Right end at the top of pass through hinge
Chain link, door-plate（11）Bottom end and depository dish（4）Right end bottom be connected by a snap, it is described to pick and place mouth and right chamber phase
It is logical, the lower tube body（2）Outer diameter and upper tube body（1）Internal diameter match, lower tube body（2）Top be inserted into upper tube body（1）
Bottom inner portion, the upper tube body（1）Internal left side is provided with the limiting slot of vertical direction（12）, and in limiting slot（12）It is interior
It is provided with gag lever post（13）, the gag lever post（13）It can be in limiting slot（12）It inside slides up and down, and gag lever post（13）Right end
With lower tube body（2）Left end be fixedly connected, upper tube body（1）The cavity for being internally provided with vertical direction of right side wall（14）, and
Cavity（14）Inside it is provided with limiting plate（15）With multigroup first spring（16）, multigroup first spring（16）Left end with sky
Chamber（14）Left side wall connection, multigroup first spring（16）Right end and limiting plate（15）Left end connection, the limiting plate
（15）Right end and cavity（14）Right side wall contact, limiting plate（15）Left end in the vertical direction spaced set have it is multigroup
Mandril（17）, upper tube body（1）It is equidistantly provided with multigroup and cavity on internal right side wall（14）The limit hole communicated（18）, institute
State multigroup mandril（17）Left end be located at multigroup limit hole（18）It is interior, upper tube body（1）Right end be provided with two groups and cavity
（14）The through-hole communicated, two groups of connecting rods（6）Left end from upper tube body（1）Right end be each passed through two groups of through-holes and stretch to
Cavity（14）Interior and and limiting plate（15）Right end connection, two groups of connecting rods（6）Right end respectively with pressing plate（7）The top of left end
It is connected with bottom, the lower tube body（2）Right end at the top of be provided with mounting groove, and second spring is provided in mounting groove（19）
And fixed link（20）, the second spring（19）Left end and right end respectively with the left side wall of mounting groove and fixed link（20）A left side
End connection, the fixed link（20）Right end to extend out to mounting groove outer and be inserted into one group of limit hole（18）It is interior, lower tube body（2）'s
Internal thread structure, the supporting rod are provided on madial wall（3）Outer wall on be provided with external thread structure, supporting rod（3）Top
End is inserted into and spiral shell is filled to lower tube body（2）Bottom inner portion；It further include controller（21）, the controller（21）Depository dish is installed
（4）Top, be provided with positioning device, central processing unit and signal receiving/transmission device, the controller in the left chamber（21）、
Positioning device, central processing unit and signal receiving/transmission device are and supply unit（9）Electrical connection, and positioning device and signal transmitting and receiving
Device is electrically connected with central processing unit, controller（21）It is electrically connected with signal receiving/transmission device.
2. a kind of field survivorship crutch as described in claim 1, which is characterized in that further include LED illumination lamp（22）, described
LED illumination lamp（22）Mounted on handle（5）Left end at the top of, the supply unit（9）And controller（21）And LED illumination lamp
（22）Electrical connection.
3. a kind of field survivorship crutch as claimed in claim 2, which is characterized in that the signal receiving/transmission device and rescue nearby
Base station is bi-directionally connected by radio.
4. a kind of field survivorship crutch as claimed in claim 3, which is characterized in that the supporting rod（3）Left end bottom set
It is equipped with storage groove（23）, and in storage groove（23）Inside it is provided with reaping hook（24）, the reaping hook（24）Bottom end and storage groove（23）
Bottom end it is hinged by shaft and torsional spring.
5. a kind of field survivorship crutch as claimed in claim 4, which is characterized in that further include potential device, the depository dish
（4）Left end be provided with charging socket and USB jack, the charging socket and USB jack pass through the potential device and power supply
Device（9）Electrical connection.
6. a kind of field survivorship crutch as claimed in claim 5, which is characterized in that the supporting rod（3）Bottom end be provided with
Rubber pad（25）.
7. a kind of field survivorship crutch as claimed in claim 6, which is characterized in that the mandril（17）Length and limit hole
（18）Length match, the limiting plate（15）Left end and cavity（14）The distance between left side wall is more than mandril（17）'s
Left end and limit hole（18）The distance between left end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122152.7A CN108308807A (en) | 2018-02-07 | 2018-02-07 | A kind of field survivorship crutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122152.7A CN108308807A (en) | 2018-02-07 | 2018-02-07 | A kind of field survivorship crutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108308807A true CN108308807A (en) | 2018-07-24 |
Family
ID=62902899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810122152.7A Withdrawn CN108308807A (en) | 2018-02-07 | 2018-02-07 | A kind of field survivorship crutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108308807A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113086131A (en) * | 2021-03-26 | 2021-07-09 | 美钻能源科技(上海)有限公司 | Underwater intelligent walking stick with display screen |
-
2018
- 2018-02-07 CN CN201810122152.7A patent/CN108308807A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113086131A (en) * | 2021-03-26 | 2021-07-09 | 美钻能源科技(上海)有限公司 | Underwater intelligent walking stick with display screen |
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Application publication date: 20180724 |