CN109184541A - With anti-skidding anti-side fall can danger warning high altitude operation ladder - Google Patents
With anti-skidding anti-side fall can danger warning high altitude operation ladder Download PDFInfo
- Publication number
- CN109184541A CN109184541A CN201811233561.0A CN201811233561A CN109184541A CN 109184541 A CN109184541 A CN 109184541A CN 201811233561 A CN201811233561 A CN 201811233561A CN 109184541 A CN109184541 A CN 109184541A
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- China
- Prior art keywords
- ladder
- negative electrode
- upright bar
- bar
- high altitude
- 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.)
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- 230000005484 gravity Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 18
- 238000009413 insulation Methods 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
- E06C7/081—Rungs or other treads comprising anti-slip features
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/42—Ladder feet; Supports therefor
- E06C7/46—Non-skid equipment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Ladders (AREA)
Abstract
There is provided it is a kind of with anti-skidding anti-side fall can danger warning high altitude operation ladder, including two ladder upright bars, it is connected between two ladder upright bars by the multiple ladder cross bars being parallel to each other, ladder cross bar is all made of the telescopic structure that can make ladder change width and increase ladder center of gravity loaded area, can making ladder, transversal stretching broadens according to demand, reach and increase ladder transverse projection distance, increases the center of gravity loaded area of ladder, prevent ladder from breakking away；Two ladder upright bar lower ends are equipped with the rotary type wedge shape antiskid pad for being capable of increasing ladder and frictional ground force and ladder being prevented to slide downwards, increase the coefficient of friction with ground, effectively ladder are prevented to slide downwards；The level meter warning device that can be detected and be issued alarm to ladder left-right and front-back tilt angle is equipped in a ladder upright bar lower lumen, it can be when ladder lateral tilting oblique angle is more than or equal to 15 degree and when ladder tilt fore and aft be less than or equal to 60 degree, it realizes alarm, provides security warning in time to construction personnel.
Description
Technical field
The invention belongs to ladder technical fields, and in particular to it is a kind of with anti-skidding anti-side fall can danger warning altitude work ladder
Son.
Background technique
Currently, usually being used various each in the work such as construction industry, communications industry, advertising, unit house demand, life
The ladder of sample often will appear the phenomenon that ladder slides, side is fallen, caused to construction personnel due to three meters or more of high altitude operation
Very major injury, cause the wounded to bear great pain, home unit bears the economic loss that should avoid, and wastes public
Medical resource.Currently on the market to ladder non-skid feature, plastic cement, sheet rubber etc. only are installed additional with upright bar root on beam, but
Still ladder landing, side Inverse problem not can effectively solve.For this purpose, designing the high altitude operation ladder that the anti-skidding anti-side of one kind is fallen is to guarantee
Construction personnel's necessary selection safely.
Summary of the invention
Present invention solves the technical problem that: provide it is a kind of with anti-skidding anti-side fall can danger warning high altitude operation ladder,
The present invention manufactures ladder cross bar at telescopic structure, and can allowing ladder, transversal stretching broadens according to demand, and it is lateral to increase ladder
Projector distance increases the center of gravity loaded area of ladder, prevents ladder from breakking away；Rotary type wedge shape is all provided with two ladder upright bar lower ends
Antiskid pad increases the coefficient of friction of ladder and ground, effectively ladder is prevented to slide downwards；It is set in ladder upright bar lower lumen
Have level meter warning device, can ladder transverse direction lateral tilting oblique angle be more than or equal to 15 degree when and ladder tilt fore and aft be less than etc.
When 60 degree, realizes alarm, provide security warning in time to construction personnel.
The technical solution adopted by the present invention: with anti-skidding anti-side fall can danger warning high altitude operation ladder, including two
Ladder upright bar, by the multiple ladder cross bars connection being parallel to each other between described two ladder upright bars, the ladder cross bar is adopted
Increase the telescopic structure of ladder center of gravity loaded area with ladder change width can be made, described two ladder upright bars lower end is equal
Equipped with the rotary type wedge shape antiskid pad for being capable of increasing ladder and frictional ground force and ladder being prevented to slide downwards, one of institute
Ladder left-right and front-back tilt angle can be detected and issue the level meter of alarm by stating to be equipped in ladder upright bar lower lumen
Warning device.
Above scheme is further limited, the ladder cross bar of the telescopic structure includes one end and a ladder upright bar
The horizontal loop bar connecting on the inside of the horizontal casing of inside connection and one end and another ladder upright bar, the horizontal loop bar other end are inserted in
Horizontal inside pipe casing is axially uniformly provided with the limiting slot being arranged in a row, the horizontal casing corresponding one on the horizontal loop bar disc side
Side wall is equipped with the axis threaded hole vertical with horizontal casing axis, and stop screw is screwed with threaded hole and its lower end is caught in horizontal loop bar
On a limiting slot in realize to the limit between horizontal casing and horizontal loop bar.
Above scheme is further limited, the rotary type wedge shape antiskid pad includes rigid backing plate, the rigid pad
The elastic wedge block with ground face contact, elastic wedge block preferred rubber wedge block, the rigidity are fixedly connected on plate lower end surface
Backing plate upper surface is equipped with the link block connecting with ladder upright bar lower end, and the link block is triangle block structure, the link block
Upper surface is interior concaved circular cambered surface, and the interior concaved circular cambered surface is equipped with tooth I, and ladder upright bar lower end surface is outer convex arc surface, institute
It states convex arc surface and is equipped with the tooth II engaged with the adaptation of tooth I；The link block two sides are equipped with side support plate, the side support plate
It is equipped with axis hole, ladder upright bar lower part two sides corresponding position is equipped with the connection pin shaft being rotatablely connected with axis hole, the side
It is whole around connection pin shaft rotation that support plate is able to drive rotary type wedge shape antiskid pad.
Above scheme is further limited, the rigidity backing plate is made of steel plate, and the elastic wedge block uses rubber
Glue material is made.
Above scheme is further limited, the level meter warning device includes being set to corresponding ladder upright bar lower lumen
In insulation cylindrical container and master switch set on corresponding ladder upright bar lower part and side support plate junction, the insulation tubular appearance
Conduction liquid is housed, the insulation tubular container bottom is equipped with positive electrode, and the insulation tubular upper vessel portion is equipped with negative electricity inside device
Pole, negative electrode setting are as follows: the insulation tubular upper vessel portion axisymmetricly left and right settings at conduction liquid 2-3cm height
There are two opposite electrode, that is, left negative electrode and right negative electrodes, and the insulation tubular upper vessel portion is at conduction liquid 4-5cm height
Axisymmetricly there are two opposite electrode, that is, preceding negative electrode and rear negative electrodes for front and back setting；The conduction liquid with ladder lateral tilting
Tiltedly connect to form left alarm switch and right alarm switch with left negative electrode or right negative electrode, the conduction liquid with ladder front and back
Inclination connects to form preceding alarm switch and rear alarm switch with preceding negative electrode or rear negative electrode, and the master switch is by conducting wire and just
Electrode is connected with negative electrode and it connects and is also connected with battery and the danger of energy voice broadcast on circuit and people is reminded to adjust ladder
The buzzer of angle.
The present invention compared with prior art the advantages of:
1, this programme manufactures ladder cross bar at telescopic structure, and can allowing ladder, transversal stretching broadens according to demand, reaches
It prevents ladder from breakking away to increase the center of gravity loaded area of ladder to ladder transverse projection distance is increased, makes ladder using more
Stablize；
2, be all provided with rotary type wedge shape antiskid pad two ladder upright bar lower ends in this programme, change ladder load area,
Direction increases the coefficient of friction with ground, reduces vector of the ladder along ground force, to effectively prevent ladder to downslide
It falls；
3, the upper layer rigidity backing plate of wedge-shaped antiskid pad is made of steel plate in this programme, and lower layer's elastic wedge block uses rubber
Glue material is made, and not only guarantees the rigidity of liner, and effectively increases the coefficient of friction with ground；
4, rotary type wedge shape antiskid pad passes through end tooth II and ladder under tooth I on link block and ladder upright bar in this programme
Rotatable connection is realized in upright bar, when carrying, wedge-shaped antiskid pad can be rotated and be changed direction and arrive with ladder upright bar in the same direction
Position, convenient for the carrying of ladder；
5, level meter warning device is equipped in this programme in a ladder upright bar lower lumen, it can be laterally left in ladder
When Right deviation oblique angle is more than or equal to 15 degree and when ladder tilt fore and aft is less than or equal to 60 degree, circuit is connected, realizes alarm, to construction
Personnel provide security warning in time.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of ladder cross bar in the present invention；
Fig. 3 is the structural schematic diagram of rotary type wedge shape antiskid pad in the present invention；
Fig. 4 is ladder upright bar lower end structure schematic diagram in the present invention；
Fig. 5 is the structural schematic diagram of level meter warning device in the present invention；
Fig. 6 is the circuit connection diagram of level meter warning device in the present invention.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the attached drawing 1-6 in embodiment,
Technical solution in embodiment is clearly and completely described, it is clear that described embodiment is only that the application a part is real
Apply example, rather than whole embodiments.Based on the embodiment provided, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, shall fall in the protection scope of this application.
With anti-skidding anti-side fall can danger warning high altitude operation ladder, as shown in Figure 1, include two ladder upright bars 1, institute
It states and is connected between two ladder upright bars 1 by the multiple ladder cross bars 2 being parallel to each other.The ladder cross bar 2 is all made of and can make
Ladder change width and the telescopic structure for increasing ladder center of gravity loaded area, specifically, as shown in Fig. 2, the telescopic knot
The ladder cross bar 2 of structure includes the horizontal casing 3 connected on the inside of one end and a ladder upright bar 1 and one end and another ladder upright bar
The horizontal loop bar 4 that 1 inside connects, horizontal 4 other end of loop bar are inserted in inside horizontal casing 3, axial on the horizontal 4 disc side of loop bar
It is uniformly provided with the limiting slot 6 being arranged in a row, it is vertical with horizontal 3 axis of casing that the corresponding one side wall of horizontal casing 3 is equipped with axis
It realizes in threaded hole 5, stop screw 7 and the limiting slot 6 that threaded hole 5 screws and its lower end is caught on horizontal loop bar 4 to horizontal set
Limit between pipe 3 and horizontal loop bar 4.The present invention manufactures ladder cross bar 2 at telescopic structure, and ladder can be allowed horizontal according to demand
It broadens to flexible, reaches and increase ladder transverse projection distance, increase the center of gravity loaded area of ladder, prevent ladder from breakking away, make ladder
Sub- use is more stable.
Described two 1 lower ends of ladder upright bar, which are equipped with, to be capable of increasing ladder and prevents ladder from sliding downwards with frictional ground force
Rotary type wedge shape antiskid pad 8, rotary type wedge shape antiskid pad 8 can change ladder load area and direction, increase and ground
The coefficient of friction in face reduces ladder along the vector of ground force, effectively ladder is prevented to slide downwards.Specifically, as shown in figure 3, institute
Stating rotary type wedge shape antiskid pad 8 includes the rigid backing plate 9 for being not easy bending, and the rigidity backing plate is fixedly connected on 9 lower end surface
With the elastic wedge block 10 of ground face contact, it is preferred that the rigidity backing plate 9 is made of steel plate, and the elastic wedge block 10 is adopted
It is made of rubber material；The design of structure and material not only guarantees the rigidity of liner, and effectively increases the friction system with bottom surface
Number.Rigidity 9 upper surface of backing plate is equipped with the link block 11 connecting with 1 lower end of ladder upright bar, and the link block 11 is triangle
Block structure, 11 upper surface of link block are interior concaved circular cambered surface 12, and the interior concaved circular cambered surface 12 is equipped with tooth I 13, the ladder
1 lower end surface of upright bar is outer convex arc surface 14, and the outer convex arc surface 14, which is equipped with, is adapted to the tooth II 15 engaged with tooth I 13；It is described
11 two sides of link block are equipped with side support plate 16, and the side support plate 16 is equipped with axis hole 17, the 1 lower part two sides of ladder upright bar
Corresponding position is equipped with the connection pin shaft 18 being rotatablely connected with axis hole 17, and it is anti-that the side support plate 16 is able to drive rotary type wedge shape
Sliding liner 8 is whole to be rotated around connection pin shaft 18.When carrying ladder, pass through 1 lower end of tooth I 13 and ladder upright bar on link block 11
Tooth II 15 engagement connection realize enable rotary type wedge shape antiskid pad 8 around connection pin shaft 18 rotation change direction to ladder
Sub- upright bar position in the same direction, convenient for the carrying of ladder.
Being equipped in 1 lower lumen of ladder upright bar can be detected and be issued to ladder left-right and front-back tilt angle
The level meter warning device 19 of alarm.Specifically, as it can be seen in figures 5 and 6, the level meter warning device 19 includes being set to corresponding ladder
Insulation cylindrical container 20 in sub- 1 lower lumen of upright bar and set on corresponding 1 lower part of ladder upright bar and 16 junction of side support plate
Master switch 25 is equipped with conduction liquid 21 inside the insulation cylindrical container 20, it is preferred that the conduction liquid 21 uses mercury；It is described
20 bottom of cylindrical container insulate equipped with positive electrode 22,20 top of insulation cylindrical container is equipped with negative electrode 23, the negative electrode
23 setting are as follows: axisymmetricly left and right settings has at 2-3cm height of insulation 20 top of cylindrical container apart from conduction liquid 21
Two opposite electrode, that is, left negative electrode 23-1 and right negative electrode 23-2, insulation 20 top of cylindrical container is apart from conduction liquid 21
Axisymmetricly there are two opposite electrode i.e. preceding negative electrode 23-3 and rear negative electrode 23-4 for front and back setting at 4-5cm height, before described
Negative electrode 23-3 and rear negative electrode 23-4 line are vertical with left negative electrode 23-1 and right negative electrode 23-2 line；The conduction liquid 21
As tilting for ladder connects to form left alarm switch 24-1 and right alarm with left negative electrode 23-1 or right negative electrode 23-2
Switch 24-2, the conduction liquid 21 are connected before being formed with tilting forward and back for ladder with preceding negative electrode 23-3 or rear negative electrode 23-4
Alarm switch 24-3 and rear alarm switch 24-4, the master switch 25 is by conducting wire and positive electrode 22 and negative electrode 23 is connect and it
The buzzer 26 for being also connected with battery 27 and the danger of energy voice broadcast on connection circuit and people being reminded to adjust ladder angle.
In use, when rotary type wedge shape antiskid pad 8 is turned to ladder upright bar 1 in same direction, rotary type wedge shape
Side support plate 16 on antiskid pad 8 does not touch the master switch 25 loaded on corresponding 1 side of ladder upright bar, level meter warning device 19
In not power supply state.On the contrary, when rotary type wedge shape antiskid pad 8 turns to the work shape with ladder upright bar 1 at an angle
When state, corresponding side support plate 16 touches master switch 25, and level meter warning device 19 is in power supply state, level meter warning device
19 can be when ladder transverse direction lateral tilting oblique angle be more than or equal to 15 degree, conduction liquid 21 and left negative electrode 23-1 or right negative electrode 23-2
Left alarm switch 24-1 or right alarm switch 24-2 is connected in contact, realizes alarm；Level meter warning device 19 can be before ladder
When backrake is less than or equal to 60 degree, conduction liquid 21 is contacted with preceding negative electrode 23-3 or rear negative electrode 23-4, and alarm is opened before being connected
24-3 and rear alarm switch 24-4 is closed, alarm is realized, provides security warning in time to construction personnel.
Above-described embodiment, only presently preferred embodiments of the present invention, is not intended to limit the invention practical range, therefore all with this
The equivalence changes that content described in invention claim is done should all be included within scope of the invention as claimed.
Claims (5)
1. with anti-skidding anti-side fall can danger warning high altitude operation ladder, including two ladder upright bars (1), described two ladders
It is connected between upright bar (1) by the multiple ladder cross bars (2) being parallel to each other, it is characterised in that: the ladder cross bar (2) is all made of
It can make ladder change width and increase the telescopic structure that ladder center of gravity loaded area prevents ladder side from falling, described two ladders
Upright bar (1) lower end is equipped with the anti-skidding lining of rotary type wedge shape for being capable of increasing ladder and frictional ground force and ladder being prevented to slide downwards
It pads (8), ladder left-right and front-back tilt angle can be detected by being equipped in one of them described ladder upright bar (1) lower lumen
And issue the level meter warning device (19) of alarm.
2. it is according to claim 1 with anti-skidding anti-side fall can danger warning high altitude operation ladder, it is characterised in that: institute
The ladder cross bar (2) for stating telescopic structure includes the horizontal casing (3) connecting on the inside of one end and a ladder upright bar (1) and one end
With the horizontal loop bar (4) connecting on the inside of another ladder upright bar (1), horizontal loop bar (4) other end is inserted in horizontal casing (3) inside,
The limiting slot (6) being arranged in a row, the corresponding side of horizontal casing (3) are axially uniformly provided on horizontal loop bar (4) the disc side
Wall is equipped with the axis threaded hole (5) vertical with horizontal casing (3) axis, and stop screw (7) is screwed with threaded hole (5) and its lower end
It is caught in a limiting slot (6) on horizontal loop bar (4) and realizes to the limit between horizontal casing (3) and horizontal loop bar (4).
3. it is according to claim 1 with anti-skidding anti-side fall can danger warning high altitude operation ladder, it is characterised in that: institute
Stating rotary type wedge shape antiskid pad (8) includes rigid backing plate (9), is fixedly connected with and ground on described rigidity backing plate (9) lower end surface
The elastic wedge block (10) of face contact, rigidity backing plate (9) upper surface are equipped with the connection connecting with ladder upright bar (1) lower end
Block (11), the link block (11) are triangle block structure, and link block (11) upper surface is interior concaved circular cambered surface (12), described interior
Concaved circular cambered surface (12) is equipped with tooth I (13), and ladder upright bar (1) lower end surface is outer convex arc surface (14), the evagination circular arc
Face (14), which is equipped with, is adapted to the tooth II (15) engaged with tooth I (13)；Link block (11) two sides are equipped with side support plate (16),
The side support plate (16) is equipped with axis hole (17), and ladder upright bar (1) lower part two sides corresponding position is equipped with and axis hole
(17) the connection pin shaft (18) being rotatablely connected, it is whole that the side support plate (16) is able to drive rotary type wedge shape antiskid pad (8)
It is rotated around connection pin shaft (18).
4. it is according to claim 3 with anti-skidding anti-side fall can danger warning high altitude operation ladder, it is characterised in that: institute
It states rigid backing plate (9) to be made of steel plate, the elastic wedge block (10) is made of rubber material.
5. it is according to claim 1 with anti-skidding anti-side fall can danger warning high altitude operation ladder, it is characterised in that: institute
Level meter warning device (19) is stated to include the insulation cylindrical container (20) in ladder upright bar (1) lower lumen and be set to pair
Answer the master switch (25) of ladder upright bar (1) lower part Yu side support plate (16) junction, dress inside the insulation cylindrical container (20)
Have conduction liquid (21), the insulation cylindrical container (20) bottom is equipped with positive electrode (22), insulation cylindrical container (20) top
Equipped with negative electrode (23), the setting of the negative electrode (23) are as follows: the insulation cylindrical container (20) top is apart from conduction liquid (21)
Axisymmetricly there are two opposite electrode, that is, left negative electrode (23-1) and right negative electrode (23-2), institutes for left and right settings at 2-3cm height
Stating insulation cylindrical container (20) top, axisymmetricly there are two opposite electrodes for front and back setting at conduction liquid (21) 4-5cm height
I.e. preceding negative electrode (23-3) and rear negative electrode (23-4)；The conduction liquid (21) tilts and left negative electrode with ladder
The connection of (23-1) or right negative electrode (23-2) forms left alarm switch (24-1) and right alarm switch (24-2), the conduction liquid
(21) as tilting forward and back for ladder connects alarm switch (24- before being formed with preceding negative electrode (23-3) or rear negative electrode (23-4)
3) with rear alarm switch (24-4), the master switch (25) is connect by conducting wire with positive electrode (22) and negative electrode (23) and it connects
Connect the buzzer (26) for being also connected with battery (27) and the danger of energy voice broadcast on circuit and people being reminded to adjust ladder angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811233561.0A CN109184541A (en) | 2018-10-23 | 2018-10-23 | With anti-skidding anti-side fall can danger warning high altitude operation ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811233561.0A CN109184541A (en) | 2018-10-23 | 2018-10-23 | With anti-skidding anti-side fall can danger warning high altitude operation ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109184541A true CN109184541A (en) | 2019-01-11 |
Family
ID=64942592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811233561.0A Pending CN109184541A (en) | 2018-10-23 | 2018-10-23 | With anti-skidding anti-side fall can danger warning high altitude operation ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109184541A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374490A (en) * | 2019-07-29 | 2019-10-25 | 浦江概念五金科技有限公司 | A kind of folded ladder |
| CN110416883A (en) * | 2019-06-28 | 2019-11-05 | 熊雪根 | A kind of AC low voltage power switch box |
| CN113499846A (en) * | 2021-09-10 | 2021-10-15 | 南通朗高石化设备有限公司 | Chemical industry is reducing mechanism of raw and other materials for equipment |
| CN116122721A (en) * | 2023-04-13 | 2023-05-16 | 陕西省外经贸建设集团有限公司 | Drilling device for building construction |
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| GB336502A (en) * | 1930-03-29 | 1930-10-23 | Walter Thomson | Improvements in attachments for preventing the slipping of ladders |
| CN1461373A (en) * | 2000-09-22 | 2003-12-10 | 休尔富特有限公司 | Self-levelling surport |
| CN102607522A (en) * | 2012-01-05 | 2012-07-25 | 浙江金中机电科技有限公司 | Horizontal dynamic automatic monitor |
| CN202578474U (en) * | 2012-04-26 | 2012-12-05 | 邢台供电公司 | Ladder with alarm device |
| CN202866635U (en) * | 2012-11-07 | 2013-04-10 | 朱叶青 | Ladder with antiskid function |
| CN206769786U (en) * | 2017-03-06 | 2017-12-19 | 梁奇泉 | A kind of gardens pruning ladder of Quick folding |
| CN209556902U (en) * | 2018-10-23 | 2019-10-29 | 张钰瑶 | With anti-skidding anti-side fall can danger warning high altitude operation ladder |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB336502A (en) * | 1930-03-29 | 1930-10-23 | Walter Thomson | Improvements in attachments for preventing the slipping of ladders |
| CN1461373A (en) * | 2000-09-22 | 2003-12-10 | 休尔富特有限公司 | Self-levelling surport |
| CN102607522A (en) * | 2012-01-05 | 2012-07-25 | 浙江金中机电科技有限公司 | Horizontal dynamic automatic monitor |
| CN202578474U (en) * | 2012-04-26 | 2012-12-05 | 邢台供电公司 | Ladder with alarm device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416883A (en) * | 2019-06-28 | 2019-11-05 | 熊雪根 | A kind of AC low voltage power switch box |
| CN110416883B (en) * | 2019-06-28 | 2021-05-28 | 红光电气集团有限公司 | Alternating current low-voltage power distribution cabinet |
| CN110374490A (en) * | 2019-07-29 | 2019-10-25 | 浦江概念五金科技有限公司 | A kind of folded ladder |
| CN110374490B (en) * | 2019-07-29 | 2020-06-09 | 浦江概念五金科技有限公司 | Folding ladder |
| CN113499846A (en) * | 2021-09-10 | 2021-10-15 | 南通朗高石化设备有限公司 | Chemical industry is reducing mechanism of raw and other materials for equipment |
| CN113499846B (en) * | 2021-09-10 | 2021-11-16 | 南通朗高石化设备有限公司 | Chemical industry is reducing mechanism of raw and other materials for equipment |
| CN116122721A (en) * | 2023-04-13 | 2023-05-16 | 陕西省外经贸建设集团有限公司 | Drilling device for building construction |
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