CN108049704A - A kind of municipal works fence that can adjust height - Google Patents
A kind of municipal works fence that can adjust height Download PDFInfo
- Publication number
- CN108049704A CN108049704A CN201711301863.2A CN201711301863A CN108049704A CN 108049704 A CN108049704 A CN 108049704A CN 201711301863 A CN201711301863 A CN 201711301863A CN 108049704 A CN108049704 A CN 108049704A
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- China
- Prior art keywords
- retractable support
- oscillating
- rods
- gag lever
- lever post
- Prior art date
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- 238000009434 installation Methods 0.000 claims abstract description 23
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/1413—Post-and-rail fences, e.g. without vertical cross-members
- E04H17/1417—Post-and-rail fences, e.g. without vertical cross-members with vertical cross-members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Fencing (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a kind of municipal works fences that can adjust height, including No.1 cup dolly and No. two cup dollies, the No.1 cup dolly and No. two cup dolly upper surfaces are respectively equipped with the upward No.1 retractable support column of telescopic end and No. two retractable support columns, the No.1 retractable support column and No. two retractable support column inner surface lower ends are attached by No.1 horizontal brace rod, the inner surface upper end of the No.1 retractable support column and No. two retractable support column telescopic ends is attached by No. two horizontal brace rods, the No.1 horizontal brace rod upper surface hinge connection has No.1 oscillating rod and No. two oscillating rods, the No.1 oscillating rod is located on the left of No. two oscillating rods, the No.1 oscillating rod inner surface upper hinge is connected with hollow installation cylinder.The invention has the advantages that easily fence height can be adjusted whenever and wherever possible according to practice of construction landform, it is more convenient and practical to adapt to actual landform.
Description
Technical field
The present invention relates to municipal works fence fields, particularly a kind of municipal works fence that can adjust height.
Background technology
With the development of economy, the quickening of urban construction paces, municipal works increasing number.In Municipal engineering construction
In, it usually needs isolation rail carries out fence to construction site, to increase the security of construction.
In existing technology, application number：201720031408.4 in the patent of entitled municipal works fence, column
Body is plastic material, and the first inserted link, the second inserted link, the 3rd inserted link are cast iron qualities, and price is very cheap, has relatively low production
Cost can ensure that the stability of municipal works fence on the ground is more preferable.
In actual municipal construction, due to the difference of construction environment, hollow area is had sometimes.However in above-mentioned patent
Fence can not adjust corresponding height during use according to actual landform, and the use of fence is made to generate certain restrictions.For
To this improvement, fence is enable whenever and wherever possible easily to adjust height, design a kind of municipal works that can adjust height and enclose
Column.
The content of the invention
The purpose of the present invention is to solve the above problems, devise a kind of municipal works fence that can adjust height.
Realize above-mentioned purpose the technical scheme is that, a kind of municipal works fence that can adjust height, including one
Number cup dolly and No. two cup dollies, the No.1 cup dolly and No. two cup dolly upper surfaces be respectively equipped with telescopic end to
On No.1 retractable support column and No. two retractable support columns, the No.1 retractable support column and No. two retractable support column inner surfaces
Lower end is attached by No.1 horizontal brace rod, the inside of the No.1 retractable support column and No. two retractable support column telescopic ends
Surface upper end is attached by No. two horizontal brace rods, and the No.1 horizontal brace rod upper surface hinge connection has No.1 swing
Bar and No. two oscillating rods, the No.1 oscillating rod are located on the left of No. two oscillating rods, the No.1 oscillating rod inner surface upper hinge
Hollow installation cylinder is connected with, the hollow installation cylinder right lateral surface is machined with No.1 rectangular aperture, the hollow mounting cylinder
It is machined with No.1 circular open on the right side of body upper surface, the hollow installation cylinder upper surface and is set above No.1 circular open
There is a shape supporting rack, the door shape supporting rack upper surface is machined with No. two circular opens, is equipped with certainly in No. two circular opens
No.1 circular open stretches into the vertical sliding gag lever post of hollow installation inner barrel, the vertical sliding gag lever post side surface and position
One end on the inside of door shape supporting rack is fixed with circular banking stop, the vertical sliding gag lever post side surface and positioned at No. two circles
Compression spring is cased with before opening and circle banking stop, No. two oscillating rods inner surface upper hinge is connected with horizontal slide and limits
Position bar, the horizontal gag lever post upper surface of sliding is machined with several limiting grooves to match with vertical sliding gag lever post, described
Level slides gag lever post lower surface and is equipped with rack, and No.1 strip gab, institute are machined on the right side of the hollow installation cylinder lower surface
The gear for being equipped in No.1 strip gab and mutually being overlapped with rack lower surface is stated, the hollow mounting cylinder body front surface is equipped with and gear
The shake handle being connected, No. two horizontal brace rod lower surface hinge connections have No. three oscillating rods and No. four oscillating rods, institute
State No. three oscillating rod lower ends and No.1 oscillating rod upper end carry out hinge connection, No. four oscillating rods and No. two oscillating rod upper ends into
Row hinge connection.
Pull handle is equipped on the vertical sliding gag lever post upper surface and above door shape supporting rack.
Table before the No.1 retractable support column, No. two retractable support columns, No.1 horizontal brace rod and No. two horizontal brace rods
Face is equipped with reflecting strips.
It is mutually parallel between the No.1 retractable support column and No. two retractable support columns.
It is mutually parallel between the No.1 horizontal brace rod and No. two horizontal brace rods.
A kind of municipal works fence that can adjust height made using technical scheme, can be according to reality
Construction landform, is whenever and wherever possible easily adjusted fence height, more convenient and practical to adapt to actual landform.
Description of the drawings
Fig. 1 is a kind of structure diagram of municipal works fence that can adjust height of the present invention；
Fig. 2 is a kind of front view of municipal works fence that can adjust height of the present invention；
Fig. 3 is that a kind of height of municipal works fence that can adjust height of the present invention adjusts schematic diagram；
Fig. 4 is a kind of partial enlarged view of municipal works fence that can adjust height of the present invention；
In figure, 1, No.1 cup dolly；2nd, No. two cup dollies；3rd, No.1 retractable support column；4th, No. two retractable support columns；
5th, No.1 horizontal brace rod；6th, No. two horizontal brace rods；7th, No.1 oscillating rod；8th, No. two oscillating rods；9th, hollow installation cylinder；
10th, No.1 circular open；11st, door shape supporting rack；12nd, No. two circular opens；13rd, vertical sliding gag lever post；14th, circular /V
Piece；15th, spring is compressed；16th, it is horizontal to slide gag lever post；17th, limiting groove；18th, rack；19th, No.1 strip gab；20th, gear；
21st, shake handle；22nd, No. three oscillating rods；23rd, No. four oscillating rods；24th, pull handle；25th, reflecting strips.
Specific embodiment
The present invention is specifically described below in conjunction with the accompanying drawings, as shown in Figs 1-4, a kind of city's political and ideological work that can adjust height
Journey fence, including No.1 cup dolly 1 and No. two cup dollies 2, the No.1 cup dolly 1 and No. two 2 upper tables of cup dolly
Face is respectively equipped with the upward No.1 retractable support column 3 of telescopic end and No. two retractable support columns 4,3 He of No.1 retractable support column
No. two 4 inner surface lower ends of retractable support column are attached by No.1 horizontal brace rod 5,3 He of No.1 retractable support column
The inner surface upper end of No. two 4 telescopic ends of retractable support column is attached by No. two horizontal brace rods 6, and the No.1 is horizontal even
5 upper surface hinge connection of extension bar has No.1 oscillating rod 7 and No. two oscillating rods 8, and the No.1 oscillating rod 7 is located at No. two oscillating rods 8
Left side, the 7 inner surface upper hinge of No.1 oscillating rod are connected with hollow installation cylinder 9, the hollow installation 9 right side table of cylinder
Face is machined with No.1 rectangular aperture, and the hollow installation cylinder is machined with No.1 circular open 10 on the right side of 9 upper surface, described hollow
9 upper surface of cylinder is installed and is equipped with door shape supporting rack 11,11 upper table of door shape supporting rack positioned at 10 top of No.1 circular open
Face is machined with No. two circular opens 12, is equipped in No. two circular opens 12 from No.1 circular open 10 and stretches into hollow mounting cylinder
Vertical sliding gag lever post 13 inside body 9,13 side surface of vertical sliding gag lever post and positioned at the inside of door shape supporting rack 11
One end is fixed with circular banking stop 14,13 side surface of vertical sliding gag lever post and positioned at No. two circular opens 12 and circular limits
Compression spring 15 is cased with before bit slice 14, the 8 inner surface upper hinge of No. two oscillating rods is connected with horizontal slip gag lever post 16,
Horizontal 16 upper surface of gag lever post of sliding is machined with several limiting grooves 17 to match with vertical sliding gag lever post 13, described
Level slides 16 lower surface of gag lever post and is equipped with rack 18, and being machined with No.1 bar shaped on the right side of 9 lower surface of the hollow installation cylinder opens
Mouthfuls 19, the gear 20 mutually overlapped with 18 lower surface of rack is equipped in the No.1 strip gab 19, before the hollow installation cylinder 9
Surface is equipped with the shake handle 21 being connected with gear 20, and the 6 lower surface hinge connection of No. two horizontal brace rods has No. three pendulum
Lever 22 and No. four oscillating rods 23,22 lower end of No. three oscillating rods and the progress hinge connection of 7 upper end of No.1 oscillating rod, described four
Number oscillating rod 23 and No. two 8 upper ends of oscillating rod carry out hinge connections；On 13 upper surface of vertical sliding gag lever post and positioned at door
11 top of shape supporting rack is equipped with pull handle 24；Described No.1 retractable support column 3, No. two retractable support columns 4, No.1 horizontal connections
Bar 5 and No. two 6 front surfaces of horizontal brace rod are equipped with reflecting strips 25；The No.1 retractable support column 3 and No. two retractable support columns 4
Between be mutually parallel；It is mutually parallel between the No.1 horizontal brace rod 5 and No. two horizontal brace rods 6.
The characteristics of the present embodiment is that whole device utilizes 3 He of No.1 retractable support column on No.1 cup dolly 1 first
No. two retractable support columns 4 on No. two cup dollies 2 are supported, and utilize No.1 horizontal brace rod 5 and No. two horizontal connections
Bar 6 is attached support to No.1 retractable support column 3 and No. two retractable support columns 4.It wherein can also add more retractable supports
Column and horizontal brace rod increase the length of fence.When wanting to increase fence height, pass through pull handle 24 first
The vertical sliding gag lever post 13 of No.1 circular open 10 and No. two circular opens 12 is stretched into pull-up, make vertical sliding gag lever post 13 from
Open limiting groove 17.Circular banking stop 14 promotes compression spring 15 that it is made to generate deformation at this time.Wherein door shape supporting rack 11 plays
Support the effect of vertical sliding gag lever post 13.Shake handle 21 is then shaken, rotates the gear 20 in No.1 strip gab 19,
And the horizontal gag lever post 16 that slides is driven to stretch into hollow installation cylinder 9 by the cooperation between gear 20 and rack 18, then
No.1 oscillating rod 7 and No. two oscillating rods 8 is driven to be swung, angle between No.1 oscillating rod 7 and No. two oscillating rods 8 is made to become smaller,
No.1 oscillating rod 7 and No. two oscillating rods 8 drive No. three oscillating rods 22 and No. four oscillating rods 23 to be swung simultaneously, make No. three swings
Angle becomes smaller between bar 22 and No. four oscillating rods 23, is equivalent to quadrangle at this time and generates deformation, No.1 horizontal brace rod 5 is fixed not
It is dynamic, No.1 oscillating rod 7 and the deformation jacking two of No. two oscillating rods 8 and No. three oscillating rods 22 and No. four oscillating rods 23 will be passed through
Horizontal brace rod 6 makes No. two horizontal brace rods 6 that will also elongate No.1 retractable support column 3 and No. two retractable supports while rise
The height of column 4.After highly adjusting, pull handle 24 is decontroled, makes reply of the vertical sliding gag lever post 13 in compression spring 15
Under the action of power, limiting groove 17 is embedded in again, level slip gag lever post 16 is fixed.It subsequently wants to turn down fence
During height, using same method, make it is horizontal slide gag lever post 16 stretch out hollow installation cylinder 9 drive No. two horizontal brace rods 6,
No.1 retractable support column 3 and No. two retractable support columns 4 reduce height, can be square whenever and wherever possible according to practice of construction landform
Fence height being adjusted just, it is more convenient and practical to adapt to actual landform.
In the present embodiment, whole device utilizes the No.1 retractable support column 3 on No.1 cup dolly 1 and No. two first
No. two retractable support columns 4 on cup dolly 2 are supported, and right using No.1 horizontal brace rod 5 and No. two horizontal brace rods 6
No.1 retractable support column 3 and No. two retractable support columns 4 are attached support.Wherein can also add more retractable support columns and
Horizontal brace rod increases the length of fence.When wanting to increase fence height, stretched first by 24 pull-up of pull handle
Enter the vertical sliding gag lever post 13 of No.1 circular open 10 and No. two circular opens 12, vertical sliding gag lever post 13 is made to leave /V
Groove 17.Circular banking stop 14 promotes compression spring 15 that it is made to generate deformation at this time.Wherein it is perpendicular to play support for door shape supporting rack 11
The straight effect for sliding gag lever post 13.Shake handle 21 is then shaken, the gear 20 in No.1 strip gab 19 is rotated, and passes through
Cooperation between gear 20 and rack 18 is stretched into level to be driven to slide gag lever post 16 in hollow installation cylinder 9, then drives one
Number oscillating rod 7 and No. two oscillating rods 8 are swung, and angle between No.1 oscillating rod 7 and No. two oscillating rods 8 is made to become smaller, while one
Number oscillating rod 7 and No. two oscillating rods 8 drive No. three oscillating rods 22 and No. four oscillating rods 23 to be swung, and make No. three 22 Hes of oscillating rod
Angle becomes smaller between No. four oscillating rods 23, is equivalent to quadrangle at this time and generates deformation, and No.1 horizontal brace rod 5 is fixed, will
Pass through No. two levels of deformation jacking of No.1 oscillating rod 7 and No. two oscillating rods 8 and No. three oscillating rods 22 and No. four oscillating rods 23
Connecting rod 6 will also elongate No.1 retractable support column 3 and No. two retractable support columns 4 while raising No. two horizontal brace rods 6
Highly.After highly adjusting, pull handle 24 is decontroled, makes vertical sliding gag lever post 13 in the work of the restoring force of compression spring 15
Under, limiting groove 17 is embedded in again, level slip gag lever post 16 is fixed.When subsequently wanting to turn down fence height,
Using same method, horizontal slip gag lever post 16 is made to stretch out hollow installation cylinder 9, No. two horizontal brace rods 6, No.1s is driven to stretch
Contracting support column 3 and No. two retractable support columns 4 reduce height.Wherein reflecting strips 25 are played by reflective come to pedestrian and vehicle
The effect warned.
In addition further optimize for above-described embodiment：In the above-described embodiments, before fence height adjustment process terminates, work
Making the hand of personnel needs to rotate shake handle, another with moving gear rotation and the horizontal horizontal movement for sliding gag lever post 16
Hand needs to lift pull handle 24 always, could keep vertical sliding gag lever post with departing from limiting groove, suitable so as to ensure
Profit adjustment height needs two hand spacing possibly can not take both sides operation into account simultaneously, and is moved for fence in above-described embodiment
Act industry, heavy workload, fence total quality is laid particular stress on, a hand often can not swing handle, it is necessary to two staff point
Not Wan Cheng pull handle and rotate the first run action, bring very big inconvenience.It is therefore desirable to above-described embodiment is further changed
Into so that fence lifting can be realized in single one-side operation.On this Demand Base, limiting groove structure is cancelled, is only retained
Level slides the rack structure of 16 lower surface of gag lever post, while slides gag lever post 16 and No. two oscillating rods 8 of its side by horizontal
Connection mode by hingedly changing into 360 degree of rotatable connections, operation principle is as follows：During into locking restriction state, by gear
Then drop-down rotates horizontal slip gag lever post 16, it is made, which to carry one side of rack upward and be lifted up pull handle 24, makes it
It is aligned in the gap of nearest rack, then unclamps pull handle 24 hence into locking state；Jacking condition is adjusted entering
When, pull handle 24 is unclamped first, is then rotated horizontal slip gag lever post 16, is treated its one with rack down, that is, be aligned
During the gear of lower section, pull handle 24 is unclamped, then gear is risen and is engaged with rack, the shake handle 21 in rotate gear,
Lifting can be realized, since the one side that pull handle 24 is contacted with horizontal slip gag lever post 16 at this time is without limiting groove
On one side, frictional force very little between the two, the motive force generated compared with tooth form engagement can be ignored.Therefore, the improvement
In only need in the one side of horizontal slide rod carry out rack processing, save process and time cost, it is whole that its can also be increased
Body rigidity can additionally realize single one-side operation, greatly improve lift work efficiency.
Above-mentioned technical proposal only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art
The principle of the present invention is embodied to some variations that some of which part may be made, belongs to the scope of protection of the present invention it
It is interior.
Claims (4)
1. a kind of municipal works fence that can adjust height, including No.1 cup dolly (1) and No. two cup dollies (2),
It is characterized in that, the No.1 cup dolly (1) and No. two cup dolly (2) upper surfaces are respectively equipped with the upward No.1 of telescopic end and stretch
Table on the inside of contracting support column (3) and No. two retractable support columns (4), the No.1 retractable support column (3) and No. two retractable support columns (4)
Face lower end is attached by No.1 horizontal brace rod (5), the No.1 retractable support column (3) and No. two retractable support columns (4)
The inner surface upper end of telescopic end is attached by No. two horizontal brace rods (6), No.1 horizontal brace rod (5) upper surface
Hinge connection has No.1 oscillating rod (7) and No. two oscillating rods (8), and it is left that the No.1 oscillating rod (7) is located at No. two oscillating rods (8)
Side, No.1 oscillating rod (7) the inner surface upper hinge are connected with hollow installation cylinder (9), and the hollow installation cylinder (9) is right
Side surface is machined with No.1 rectangular aperture, and No.1 circular open (10) is machined on the right side of described hollow installation cylinder (9) upper surface,
Hollow installation cylinder (9) upper surface and door shape supporting rack (11), the door are equipped with above the No.1 circular open (10)
Shape supporting rack (11) upper surface is machined with No. two circular opens (12), is equipped in No. two circular opens (12) circular from No.1
Opening (10) stretches into the internal vertical sliding gag lever post (13) of hollow installation cylinder (9), vertical sliding gag lever post (13) side
Surface and one end on the inside of the door shape supporting rack (11) is fixed with circular banking stop (14), the vertical sliding gag lever post (13)
Side surface and compression spring (15) is cased with before No. two circular opens (12) and circular banking stop (14), described No. two swing
Horizontal slip gag lever post (16) is connected on bar (8) inner surface, wherein the horizontal gag lever post (16) that slides can be compared with No. two pendulum
(8) 360 ° of rotations of lever；Described horizontal gag lever post (16) lower surface of sliding is equipped with rack (18), the hollow installation cylinder (9)
No.1 strip gab (19) is machined on the right side of lower surface, is equipped with and rack (18) lower surface phase in the No.1 strip gab (19)
The gear (20) of overlap joint, the gear (20) can be before No.1 strip gab (19) interior oscilaltions, the hollow installation cylinder (9)
Surface is equipped with the shake handle (21) being connected with gear (20), and No. two horizontal brace rods (6) the lower surface hinge connection has
No. three oscillating rods (22) and No. four oscillating rods (23), No. three oscillating rods (22) lower end are carried out with No.1 oscillating rod (7) upper end
Hinge connection, No. four oscillating rods (23) carry out hinge connection, the vertical sliding gag lever post with No. two oscillating rod (8) upper ends
(13) pull handle (24) is equipped on upper surface and above door shape supporting rack (11).
2. a kind of municipal works fence that can adjust height according to claim 1, which is characterized in that the No.1 is stretched
Contracting support column (3), No. two retractable support columns (4), No.1 horizontal brace rod (5) and No. two horizontal brace rod (6) front surfaces are all provided with
There are reflecting strips (25).
3. a kind of municipal works fence that can adjust height according to claim 1, which is characterized in that the No.1 is stretched
It is mutually parallel between contracting support column (3) and No. two retractable support columns (4).
A kind of 4. municipal works fence that can adjust height according to claim 1, which is characterized in that the No.1 water
It is mutually parallel between flushconnection bar (5) and No. two horizontal brace rods (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711301863.2A CN108049704B (en) | 2017-12-10 | 2017-12-10 | Municipal works rail that can height-adjusting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711301863.2A CN108049704B (en) | 2017-12-10 | 2017-12-10 | Municipal works rail that can height-adjusting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108049704A true CN108049704A (en) | 2018-05-18 |
| CN108049704B CN108049704B (en) | 2020-08-07 |
Family
ID=62123018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711301863.2A Expired - Fee Related CN108049704B (en) | 2017-12-10 | 2017-12-10 | Municipal works rail that can height-adjusting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108049704B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306675A (en) * | 2019-07-25 | 2019-10-08 | 苏州嘉谷环保科技有限公司 | It is a kind of can stable regulation mobile house and stable regulation method |
| CN111449869A (en) * | 2020-05-06 | 2020-07-28 | 广东博方众济医疗科技有限公司 | Lifting guardrail and nursing bed |
| CN112727237A (en) * | 2020-12-25 | 2021-04-30 | 郑州航空工业管理学院 | Safety management system for construction engineering site construction |
| CN112832501A (en) * | 2020-12-24 | 2021-05-25 | 徐敏 | Municipal works construction is with protection brace table |
| CN112917438A (en) * | 2021-01-22 | 2021-06-08 | 白锐 | But workstation is used in processing of height quick adjustment control |
| CN113280213A (en) * | 2021-04-27 | 2021-08-20 | 安徽正飞信息科技有限公司 | Integrated intelligent traffic signal lamp |
| WO2021223714A1 (en) * | 2020-05-06 | 2021-11-11 | 广东博方众济医疗科技有限公司 | Lifting guardrail and nursing bed having same |
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| CN112727237A (en) * | 2020-12-25 | 2021-04-30 | 郑州航空工业管理学院 | Safety management system for construction engineering site construction |
| CN112917438A (en) * | 2021-01-22 | 2021-06-08 | 白锐 | But workstation is used in processing of height quick adjustment control |
| CN113280213A (en) * | 2021-04-27 | 2021-08-20 | 安徽正飞信息科技有限公司 | Integrated intelligent traffic signal lamp |
Also Published As
| Publication number | Publication date |
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| CN108049704B (en) | 2020-08-07 |
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