CN106744564A - A kind of safety lock detection means - Google Patents
A kind of safety lock detection means Download PDFInfo
- Publication number
- CN106744564A CN106744564A CN201710030705.1A CN201710030705A CN106744564A CN 106744564 A CN106744564 A CN 106744564A CN 201710030705 A CN201710030705 A CN 201710030705A CN 106744564 A CN106744564 A CN 106744564A
- Authority
- CN
- China
- Prior art keywords
- safety lock
- baffle
- straight pin
- pulley
- lifting
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention discloses a kind of safety lock detection means, mainly include that safety lock supports lifting system (A) and lock fixed system (B), safety rope tripping gear is included in lock fixed system (B).The present invention can not only change the clamp device of multi-form, additionally it is possible to which the distance between safety rope and working rope can be changed within the specific limits.Safety lock detection means volume of the invention is small, rational in infrastructure, easy to operate, the different operating situation of hanging basket top link anti-dumping formula safety lock can be simulated, can detect the parameters of swing arm anti-dumping formula safety lock, and not limited by installation dimension and installation form.
Description
Technical field
The invention belongs to detection technique field, and in particular to a kind of safety lock detection means.
Background technology
Aerial work basket is widely used implement in construction, with the development of construction industry, skyscraper
Be continuously increased, driven hanging basket be widely used in external wall plaster, furring brick, install curtain wall, paint coating, outside Wall Cleaning
Maintenance.Because hanging basket is mainly in work high above the ground, once elevator breaks down or haulage cable is broken suddenly, will there is machine
Ruin the major accident that people dies.Therefore, aerial work basket must be provided with the safety device of reliable operation, at present overwhelming majority steel wire
Wire saws hanging basket uses safety lock, and its major function is that it is rapid dynamic when elevator failure or traction steel wire fracture of rope
Make, hanging basket is locked on safety rope in moment, it is ensured that personnel's falling accident does not occur.
Cradle safety lock is last one measure for ensureing hanging basket safety, once failure, consequence heaviness.Through crash analysis with
And construction enterprises are taken a broad survey, the safety lock that quite a few is used at present is never demarcated from after dispatching from the factory, and is not acted as
With performing practically no function.It is presently used for verifying that the device of safety lock reliability is various, but in the course of the work, always can not in the presence of some
By factor.
During safety lock detection means use, the weight for rapidly dropping need to take corresponding protection to arrange in landing moment
Apply, to prevent safety lock failure in the case of, weight damage;In personnel's experimentation, redundant safety measure is needed to ensure operation
Personnel will not fly to alter because of lifting rope, weight is pounded etc., and unreliable factor is injured.
Therefore, this requires to be improved safety lock detection means.
The content of the invention
The present invention proposes a kind of simple structure, safe and reliable, the safety lock detection means of efficiency high, and safety can be locked into
The a series of experiments such as row free falling, sliding and static(al), can detect the different size model of different manufacturers production, different installations
The swing arm anti-dumping inclined safety lock product of size.
The present invention adopts the following technical scheme that realization:
A kind of safety lock detection means, mainly includes safety lock support lifting system A and lock fixed system B;
The safety lock supports lifting system A, including the first support frame A1, the first slip cross bar A2, support plank platform
A3, lifting counterweight A4, base support A5, first pulley A6, the first lifting rope A7, the second lifting rope A8, the second support frame A9, safety lock
A10, lifting rope connector A11, the first spring A12, spring connector A13, upper support platform A14, second pulley A15, first jiao
Iron A16, the first sliding block A17, the 3rd pulley A18, the second angle bar A19, the first hanging joint A20, the second hanging joint A21, hang
Hang weight A22, the second Telescopic sliding cross bar A23 and the first lifting rope spacing ring A24;
The lock fixed system B includes depression bar B1, second spring B2, first baffle B3, second baffle B4, support pad
B5, the first baffle of porous baffle B6, the first gag lever post B7, the first straight pin B8, the second straight pin B9, the first circular hole B10, the 3rd cylinder
Pin B11, the second circular hole B12, the 4th straight pin B13;
The first support frame A1 in safety lock support lifting system A, a sliding bar A2 described in the are by welding
It is connected with the base support A5;The support plank platform A3 is connected by gap cooperation with the first sliding bar A2;Institute
State the first lifting rope A7 through the snap fastening device B, the first lifting rope spacing ring A24, the 3rd pulley A18, second pulley A15,
First pulley A6, lifting counterweight A4, wherein being welded with itself after the first lifting rope A7 unrolls through lifting counterweight A4;Described
Two lifting rope A8 are connected by welding with lifting rope connector A11, through safety lock A10 and are naturally drooped afterwards;The first spring A12
It is connected with spring connector A13 by welding;The hanging weight A22 is by welding and the first hanging joint A20, the second hanging
Joint A21 is connected;
After the first lifting rope A7 is unrolled by latching the first straight pin B8 in fixed system B, welded by pressing plate and pressed
Extremely;First straight pin B8 both sides are connected by welding with the first gag lever post B7;First straight pin B8 is with holes with first by welding
Baffle plate B6 is connected;Support pad B5 is connected by gap cooperation with the second Telescopic sliding cross bar A23;Support pad B5 is by weldering
Connect and be connected with the first baffle of porous baffle B6;Second straight pin B9 and the first baffle of porous baffle B6 coordinates for gap;Second straight pin B9 leads to
Cross gap cooperation, the circular hole through on second baffle B4;4th straight pin B13 is fitted through on second baffle B4 by gap
Circular hole;4th straight pin B13 is by welding and cam engagement;Depression bar B1 is connected by welding with cam, second spring B2.
The safety lock detection means also includes Electric Traction and control section, safety lock fixture, data detection section.
The safety lock fixture uses I-steel and clamping screw structure, and is removably attached to the first support frame A1
On.
The first pulley A6 is adjustable relative to the position of the second support frame A9, and the 3rd pulley A18 is relative to second
The position of Telescopic sliding cross bar A23 is adjustable.
Safety lock detection means volume of the invention is small, rational in infrastructure, easy to operate, can simulate hanging basket top link anti-dumping
The different operating situation of formula safety lock, can detect the parameters of swing arm anti-dumping formula safety lock, and by installation dimension and
The limitation of installation form.
Brief description of the drawings
Fig. 1 is safety lock detection means installation diagram of the invention;
Fig. 2 is safety lock detection means lock fixed system figure of the invention;
Fig. 3 is safety lock detection means lock fixed system cut-away view of the invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings:
As Figure 1-3, a kind of safety lock detection means of the invention, mainly include safety lock support lifting system A and
Lock fixed system B.
The safety lock supports lifting system A, including the first support frame A1, the first slip cross bar A2, support plank platform
A3, lifting counterweight A4, base support A5, first pulley A6, the first lifting rope A7, the second lifting rope A8, the second support frame A9, safety lock
A10, lifting rope connector A11, the first spring A12, spring connector A13, upper support platform A14, second pulley A15, first jiao
Iron A16, the first sliding block A17, the 3rd pulley A18, the second angle bar A19, the first hanging joint A20, the second hanging joint A21, hang
Hang weight A22, the second Telescopic sliding cross bar A23 and the first lifting rope spacing ring A24.
The lock fixed system B includes depression bar B1, second spring B2, first baffle B3, second baffle B4, support pad
B5, the first baffle of porous baffle B6, the first gag lever post B7, the first straight pin B8, the second straight pin B9, the first circular hole B10, the 3rd cylinder
Pin B11, the second circular hole B12, the 4th straight pin B13.Wherein, depression bar B1, second spring B2, first baffle B3, the second straight pin
B9, the first circular hole B10, the 3rd straight pin B11, the second circular hole B12, the 4th straight pin B13 constitute safety rope tripping gear.As schemed
Shown in 3, the shifting block of a duckbill is welded in depression bar B1 front ends, is located exactly at the duckbilled of shifting block front end and is enclosed within the second straight pin B9
Hook-like means head lower end.
The first support frame A1 in safety lock support lifting system A, a sliding bar A2 described in the are by welding
It is connected with the base support A5;The support plank platform A3 is connected by gap cooperation with the first sliding bar A2;Institute
State the first lifting rope A7 through the snap fastening device B, the first lifting rope spacing ring A24, the 3rd pulley A18, second pulley A15,
First pulley A6, lifting counterweight A4, wherein being welded with itself after the first lifting rope A7 unrolls through lifting counterweight A4;Described
Two lifting rope A8 are connected by welding with lifting rope connector A11, through safety lock A10 and are naturally drooped afterwards;The first spring A12
It is connected with spring connector A13 by welding;The hanging weight A22 is by welding and the first hanging joint A20, the second hanging
Joint A21 is connected.
After the first lifting rope A7 is unrolled by latching the first straight pin B8 in fixed system B, welded by pressing plate and pressed
Extremely;First straight pin B8 both sides are connected by welding with the first gag lever post B7;First straight pin B8 is with holes with first by welding
Baffle plate B6 is connected;Support pad B5 is connected by gap cooperation with the second Telescopic sliding cross bar A23;Support pad B5 is by weldering
Connect and be connected with the first baffle of porous baffle B6;Second straight pin B9 and the first baffle of porous baffle B6 coordinates for gap;Second straight pin B9 leads to
Cross gap cooperation, the circular hole through on second baffle B4;4th straight pin B13 is fitted through on second baffle B4 by gap
Circular hole;4th straight pin B13 is by welding and cam engagement;Depression bar B1 is connected by welding with cam, second spring B2.
Referring to accompanying drawing 1, safety lock detection means of the invention is also included with lower component:Electric Traction and control section
(such as elevator, including motor and brake), safety lock fixture, data detection section etc..
The safety lock fixture of detection means of the present invention uses I-steel and clamping screw structure, and is removably attached to
On first support frame A1.Can by change multi-form safety lock fixture to reach detection different manufacturers and different model
The purpose of safety lock.For the different size and installation dimension of existing market top link anti-dumping formula safety lock, present apparatus fixture
Design, using each safety lock with a kind of different fixture for matching therewith.Carried out by the various safety locks of in the market
Investigation, the installation bore dia of safety lock in 12mm or so, two mounting hole horizontal ranges between 30~60mm, safety lock lock body
Thickness is in 50mm or so.If there is the swing arm anti-dumping formula safety lock product of new installation form, new installation dimension in the market,
The use that a new fixture coordinates detection means need to be only processed, so as to expand its versatility.
The difference of the installation dimension of general safety lock, except lock body has with the position of the connecting bolt of hanging basket basket body
Beyond difference, also the distance between working rope and safety rope are also differed.Therefore the present invention is except by changing multi-form
Clamp device beyond, additionally it is possible to the distance between safety rope and working rope can be changed within the specific limits, i.e., using
Positions of the one pulley A6 relative to the second support frame A9, positions of the 3rd pulley A18 relative to the second Telescopic sliding cross bar A23
It is adjustable technological means, when a kind of safety lock is detected, after having measured its spacing, just two plates is tightened with bolt, to ensure work
It is vertical as steel wire rope, the data for so detecting are possible to actual conditions relatively.When needing, detection is another
During the different safety lock of kind of form, fastening bolt is just unclamped, adjust the big pulley position between base plate relative with truckle, from
And adjust the spacing of steel wire rope, bolt is tightened again after mixing up, so can by change between safety rope and working rope away from
From
Operation principle of the invention is described as follows with action process.
When lifting counterweight A4 pulls the first lifting rope A7 to move down, first pulley A6, second pulley A15 are side clockwise
To rotation, the 3rd pulley A18 is driven to rotate in an anti-clockwise direction, now, the second Telescopic sliding cross bar A23's slides near the 3rd
Wheel A18 ends move up;
After the 3rd straight pin B11 is taken out, depression bar B1 is pressed down on manually, now drive the 4th straight pin B13 to do the inverse time
Pin direction rotates, and by the first baffle of porous baffle B6 jack-up, now due to the effect of lifting counterweight A4, the first baffle of porous baffle B6 drives branch
Stake pad piece B5 moves right rapidly, meanwhile, the first lifting rope A7 loosens rapidly, the first gag lever post B7 limitation support pads B5, first
Baffle of porous baffle B6, the first lifting rope A7 can only do the motion along the first gag lever post B7 directions, and the second Telescopic sliding cross bar A23's leans on
Nearly 3rd pulley A18 ends can produce the trend of moving downward;Now, safety lock A10 locks the second lifting rope A8, prevents second can stretch
The close A18 ends that cross bar A23 is slided in contracting move down.
Referring to accompanying drawing 1, during test, steel wire rope is driven by the second Telescopic sliding cross bar with Electric Traction control section first
Horizontal level is promoted to, the second Telescopic sliding cross bar and counterweight simulate the nominal load capacity of basket body, now steel wire rope simulation electricity
The normal operating conditions of dynamic hanging basket.Running part uses wire rope pulley group, and load cable one end penetrates elevator, through being oriented to
Pulley is connected with part of breaking off relations.Then safety lock is penetrated from safety rope lower end, is fixed by bolts on frock clamp, and will
Its swing arm is leaned against on working rope, is at non-locking state.A Steel Ruler of 0.5m long is pasted on the second support frame A9, and
And a pointer is welded on the corresponding right side in the second Telescopic sliding cross bar, corresponding with Steel Ruler can work and complete the work of reading
Make, constitute data detection section.Two rectangle yielding rubber blocks are transferred in the underframe of lock fixed system B to be filled as buffering
Put, reaching prevents the safety lock failure from causing test stand to fall the purpose of damage.This scheme can be with accurate measurement safety lock
Each parameter:Safety lock trigger angle, safety lock lock when safety lock operating distance, hanging basket are slowly inclined under the unexpected reduced gravity situations of hanging basket
After tight under dead weight of basket effect skidding distance, to meet purpose of design.When so weightlessness free falling is detected hanging basket, read first
Go out height value during static work, the bearing pin of the tripping gear on the right side of the second Telescopic sliding cross bar is taken out (i.e. by that will press
Bar B9 is pushed), then working rope will instantaneously break off relations, and can simulate driven hanging basket situation weightless suddenly, after after safety lock lock rope, in pendant
Latch at rope reading again, and the difference of two readings is the lock rope distance under reduced gravity situations.When measurement hanging basket is slowly inclined
During safety lock trigger angle, useable electric moter control button drive steel wire rope moves up the second Telescopic sliding cross bar left end,
Untill safety lock lock rope.Difference in height before and after rope is locked by left side arm support, the data difference read by scale can obtain lock
Rope distance.Lock rope angle can be calculated by distance and the conversion relation of angle.In dead weight of basket effect after measurement safety lock locking
During lower skidding distance, according to country on《Aerial work basket》Professional standard, hanging basket when static trial load is born, peace
Quan Suosuo 1 hour skidding distance of rope is not more than 2 millimeters.Now, can make to be moved on the second Telescopic sliding cross bar by control button,
Safety lock is set to be in lock rope form state.Start timing from that point on, after 1 hour, the second Telescopic sliding cross bar left end of observation is moved down
Distance whether reach the regulation of professional standard.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (4)
1. a kind of safety lock detection means, mainly includes that safety lock supports lifting system (A) and lock fixed system (B);
It is characterized in that:
The safety lock supports lifting system (A), including the first support frame (A1), first slides cross bar (A2), support plank and put down
Platform (A3), lifting counterweight (A4), base support (A5), first pulley (A6), the first lifting rope (A7), the second lifting rope (A8), second
Support frame (A9), safety lock (A10), lifting rope connector (A11), the first spring (A12), spring connector (A13), upper support are flat
Platform (A14), second pulley (A15), the first angle bar (A16), the first sliding block (A17), the 3rd pulley (A18), the second angle bar
(A19), the first hanging joint (A20), the second hanging joint (A21), hanging weight (A22), the second Telescopic sliding cross bar
And the first lifting rope spacing ring (A24) (A23);
Lock fixed system (B) includes depression bar (B1), second spring (B2), first baffle (B3), second baffle (B4), branch
Stake pad piece (B5), the first baffle of porous baffle (B6), the first gag lever post (B7), the first straight pin (B8), the second straight pin (B9), first
Circular hole (B10), the 3rd straight pin (B11), the second circular hole (B12), the 4th straight pin (B13);
The safety lock supports first support frame (A1) in lifting system (A), a sliding bar (A2) described in the by weldering
Connect and be connected with the base support (A5);Support plank platform (A3) is coordinated and first sliding bar (A2) by gap
Connection;First lifting rope (A7) passes through the snap fastening device (B), the first lifting rope spacing ring (A24), the 3rd pulley
(A18), second pulley (A15), first pulley (A6), lifting counterweight (A4), wherein first lifting rope (A7) is matched somebody with somebody through lifting
Weight (A4) is welded after unrolling with itself;Second lifting rope (A8) is connected by welding with lifting rope connector (A11), afterwards through peace
Full lock (A10) simultaneously naturally droops;First spring (A12) is connected by welding with spring connector (A13);The hanging weight
Thing (A22) is connected by welding with the first hanging joint (A20), the second hanging joint (A21);
After first lifting rope (A7) is unrolled by the first straight pin (B8) latched in fixed system (B), welded by pressing plate
Kill;First straight pin B8 both sides are connected by welding with the first gag lever post (B7);First straight pin (B8) is by welding and the
One baffle of porous baffle (B6) is connected;Support pad (B5) is connected by gap cooperation with the second Telescopic sliding cross bar (A23);Support
Pad (B5) is connected by welding with the first baffle of porous baffle (B6);Second straight pin (B9) is gap with the first baffle of porous baffle (B6)
Coordinate;Second straight pin (B9) is coordinated by gap, the circular hole through on second baffle (B4);4th straight pin (B13) passes through
Gap fits through the circular hole on second baffle (B4);4th straight pin (B13) is by welding and cam engagement;Depression bar (B1) leads to
Welding is crossed to be connected with cam, second spring (B2).
2. a kind of safety lock detection means according to claim 1, it is characterised in that:
The safety lock detection means also includes Electric Traction and control section, safety lock fixture, data detection section.
3. a kind of safety lock detection means according to claim 2, it is characterised in that:
The safety lock fixture uses I-steel and clamping screw structure, and is removably attached to the first support frame (A1)
On.
4. a kind of safety lock detection means according to claim 1, it is characterised in that:
The first pulley (A6) is adjustable relative to the position of the second support frame (A9), and the 3rd pulley (A18) is relative to
The position of two Telescopic sliding cross bars (A23) is adjustable.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710030705.1A CN106744564B (en) | 2017-01-16 | 2017-01-16 | A kind of safety lock detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710030705.1A CN106744564B (en) | 2017-01-16 | 2017-01-16 | A kind of safety lock detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
CN106744564A true CN106744564A (en) | 2017-05-31 |
CN106744564B CN106744564B (en) | 2019-08-06 |
Family
ID=58946032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710030705.1A Active CN106744564B (en) | 2017-01-16 | 2017-01-16 | A kind of safety lock detection device |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106744564B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109141843A (en) * | 2018-09-18 | 2019-01-04 | 优服(辽宁)检测技术有限公司 | A kind of safety lock detection device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101216378A (en) * | 2007-12-27 | 2008-07-09 | 上海市建筑科学研究院(集团)有限公司 | Gear type construction hoist falling-proof safety device detection and experimental device |
EP1701904B1 (en) * | 2004-01-09 | 2011-11-30 | Kone Corporation | Method for testing the condition of the brakes of an elevator |
CN103979471A (en) * | 2014-06-05 | 2014-08-13 | 沙洲职业工学院 | Swing arm type inclination-prevention safety lock detection device |
CN204788946U (en) * | 2015-07-03 | 2015-11-18 | 上海欧津机电设备有限公司 | Safety lock detection device |
CN205133094U (en) * | 2015-11-18 | 2016-04-06 | 重庆市计量质量检测研究院 | Aerial work hanging flower basket swing arm formula safety lock detects platform |
-
2017
- 2017-01-16 CN CN201710030705.1A patent/CN106744564B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1701904B1 (en) * | 2004-01-09 | 2011-11-30 | Kone Corporation | Method for testing the condition of the brakes of an elevator |
CN101216378A (en) * | 2007-12-27 | 2008-07-09 | 上海市建筑科学研究院(集团)有限公司 | Gear type construction hoist falling-proof safety device detection and experimental device |
CN103979471A (en) * | 2014-06-05 | 2014-08-13 | 沙洲职业工学院 | Swing arm type inclination-prevention safety lock detection device |
CN204788946U (en) * | 2015-07-03 | 2015-11-18 | 上海欧津机电设备有限公司 | Safety lock detection device |
CN205133094U (en) * | 2015-11-18 | 2016-04-06 | 重庆市计量质量检测研究院 | Aerial work hanging flower basket swing arm formula safety lock detects platform |
Non-Patent Citations (1)
Title |
---|
张华文等: "新型高处作业吊篮安全锁试验装置", 《建筑机械》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109141843A (en) * | 2018-09-18 | 2019-01-04 | 优服(辽宁)检测技术有限公司 | A kind of safety lock detection device |
CN109141843B (en) * | 2018-09-18 | 2024-05-31 | 优服(辽宁)检测技术有限公司 | Safety lock detection device |
Also Published As
Publication number | Publication date |
---|---|
CN106744564B (en) | 2019-08-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101670965B (en) | Method for measuring elevator equilibrium coefficient | |
KR102036152B1 (en) | Climbing apparatus | |
CN110359440A (en) | A kind of intelligence inclination measurement system and its monitoring method | |
CN104591050A (en) | Overhead working truck tipping prevention control method | |
CN105277353A (en) | A high-altitude lifting basket type machine safety lock testing experiment table and testing method | |
KR20180057326A (en) | inerlocking test apparatus of elevator governor and emergency stopping device | |
CN106744564A (en) | A kind of safety lock detection means | |
CN106768587B (en) | Device and method for testing static braking force of low-speed shaft brake energy efficiency test | |
KR100823859B1 (en) | Inspection & repair method and the device for an elevated road | |
CN206336871U (en) | Protector and elevator anti-drop system in a kind of elevator | |
CN107819290A (en) | The anti-fall aerial work platform of height adjustable | |
CN207957541U (en) | Crane is close to wheel apparatus | |
CN216129274U (en) | Automobile overhaul device | |
CN216116356U (en) | Exempt from to climb ware vibration monitoring devices | |
CN102455254A (en) | Safety lock test stand | |
CN213985212U (en) | Deep well environment detection device | |
CN105405481B (en) | A kind of measurement apparatus for nuclear fuel crane gear load protection braking distance | |
CN107807045A (en) | A kind of compression test device and test method for concrete box culvert | |
CN210418880U (en) | Wedge-shaped cage guide installation point taking device in mine shaft | |
CN204661194U (en) | Firedamp sensor jacking system | |
CN207113837U (en) | Large strain drops hammer ranging computer | |
CN209509035U (en) | A kind of tubular pole beam test device | |
CN207209642U (en) | Elevator governor detects corollary equipment | |
CN214224062U (en) | Hanging flower basket safety lock angle detection device | |
CN205157186U (en) | High altitude hanging flower basket class mechanical safety lock testing experiment platform |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |