CN101852010B - Load control device for attached lifting scaffold - Google Patents
Load control device for attached lifting scaffold Download PDFInfo
- Publication number
- CN101852010B CN101852010B CN2010101539270A CN201010153927A CN101852010B CN 101852010 B CN101852010 B CN 101852010B CN 2010101539270 A CN2010101539270 A CN 2010101539270A CN 201010153927 A CN201010153927 A CN 201010153927A CN 101852010 B CN101852010 B CN 101852010B
- Authority
- CN
- China
- Prior art keywords
- outlet
- control device
- electric
- control system
- scaffold
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a load control device for an attached lifting scaffold, which comprises an electric control system and a sensor, wherein the sensor is electrically connected with the electric control system; and the electric control system is provided with a program for controlling the operation of a power unit of the attached lifting scaffold. The load control device is characterized in that the sensor comprises a piston shell and a piston rod, the piston shell is connected with a lifting beam of the attached lifting scaffold, the piston rod is connected with an electric block, an oil duct outlet is arranged in the piston cavity on the lower end of the piston rod and connected with the inlet of a controllable hydraulic non-return valve through a pipeline, the outlet of the controllable hydraulic non-return valve is connected with a transparent oil pipe, the transparent oil pipe is provided with a photoelectric switch for detecting the liquid level, and the photoelectric switch is electrically connected with the electric control system; and the controllable hydraulic non-return valve is provided with a control device which controls oil to flow from the inlet to outlet or from the outlet to inlet in a single direction. By adopting the technical scheme, the lifting load of the scaffold can be effectively limited, and overload and danger are prevented.
Description
Technical field
The present invention relates to a kind of many crane gears operation, prevent individual device occur the overload situation load control device, relate in particular to and prevent the device that overloads in a kind of attached lift scaffold running.
Background technology
In the existing building construction technology, it is less that attached lift scaffold consumes steel with it, and profile neat appearance, construction speed are used widely soon.Its lifting process equipment generally adopts electric block, and hook is connected on the building on the electric block, and lower draw-bar connects the scaffold bottom, starts electric block, through the rotating of electric block, realizes the liter of scaffold support body or falls.Many electric blocks move simultaneously often, realize the integral elevating of scaffold.The situation that occurs electric block operation faster or slower like this in the running easily; Cause focusing on certainly on the moving cucurbit of different electric of scaffold to be redistributed; Less even the stand under load not fully of indivedual electric block stands under load; And the phenomenon that load is concentrated appears in indivedual electric blocks, causes support body distortion or the fracture of electric block chain, support body tenesmus.For preventing this from occurring, must monitor the load situation of each electric block, when overload occurring, can adjust automatically, report to the police automatically.
Summary of the invention
Technical problem to be solved by this invention provides a kind of electric block of attached lift scaffold that prevents and the load control device of overload situation in running, occurs.
For realizing above-mentioned purpose; The present invention adopts following technical scheme: a kind of load control device for attached lifting scaffold; Comprise electric-control system and sensor; Sensor is electrically connected with electric-control system, and electric-control system is provided with the program of control attached lift scaffold power-equipment operation, and it is characterized in that: said sensor comprises piston shell that is connected with the lifting beam of attached lift scaffold and the piston rod that is connected with electric block; Be provided with the oil circuit outlet in the plunger shaft of piston-rod lower end; Said oil circuit outlet is through the import of pipeline connection controlled hydraulic one way valve, and the outlet of controlled hydraulic one way valve connects transparent oil pipe, and transparent oil pipe is provided with the optoelectronic switch that detects liquid level position; Optoelectronic switch is electrically connected with electric-control system, and the controlled hydraulic one way valve is provided with the control oil body from import to outlet or from the control device of outlet to the import one-way flow.
Adopt the present technique scheme, work as electric hoist overload, oil pressure increases in the oil pocket; The valve of controlled hydraulic one way valve is opened, and oil flows to outlet from the import of controlled hydraulic one way valve, gets into to cause pasta to raise in the transparent oil pipe; When optoelectronic switch detects liquid level variation, export the signal of telecommunication to electric-control system, electric-control system is according to setting program; Send the instruction that electric block shuts down or remains in operation, and report to the police or point out.Limit with regard to effective hoist load like this, prevent the overload phenomenon, the situation of causing danger scaffold.
Further, the structure of the novel control device of this use is limited, it is characterized in that: described control device comprises spool, the compression spring of being located at outlet one side, and compression spring one end connects spool, and the compression spring other end connects valve body; Also comprise the push rod of being located at import one side, lean on the valve body of said push rod one side to be provided with spiral handle.The rotating bolt handle promotes push rod and opens spool, and the oil that gets into transparent water pipe is refluxed, and the load limiting device is resetted, and is simple in structure, convenient and practical.
Description of drawings
Fig. 1 is the structural representation of load sensing unit of the present invention.
Below in conjunction with the description of drawings and the specific embodiment the present invention is further described.
The specific embodiment
Electric-control system of the present invention belongs to prior art, and present embodiment highlights the structure construction of load sensing unit.As shown in Figure 1; Be provided with piston 3 in the piston shell 4; Be full of hydraulic oil in the oil pocket 2 of piston 3 lower ends, the lower end of the piston rod 1 of piston 3 is provided with link 19, and link 19 is linked up with such as going up of electric block (not shown) with the power-equipment of attached lift scaffold and is connected.Be welded with ring 5 on the piston shell 4, ring 5 is in order to be connected with the attachment device (not shown) of attached lift scaffold.The bottom of oil pocket 2 is communicated with the import 18 of controlled hydraulic one way valve, is provided with spool 11 in the controlled hydraulic one way valve, and the bottom supporting of spool 11 is on compression spring 12, and the other end of compression spring 12 is bearing in valve body 10 ends.Valve body 10 leans on a side of spool 11 to be provided with oil-out 17, and oil-out 17 is communicated with transparent oil pipe 13 through pipeline 16, and transparent oil pipe 13 is provided with the optoelectronic switch 14 that detects liquid level.When oil pressure was lower than the early warning power of compression spring 12, spool 11 blocking-up oil circuits started electric block like this, and electric block is stressed, drove attached lift scaffold and were just up promoted or normal downwards operation.In case overload, piston rod 1 moves down, and the oil pressure in the oil pocket 2 raises; When oil pressure was elevated to the early warning power that is enough to overcome compression spring 12, spool 11 is turned left to be pushed open, and 17 oil circuit is connected from oil-out 18 to oil-in; Thereby oil gets in the transparent oil pipe 13, causes original pasta to raise, and the effect of photoswitc 14 is to be elevated to the precalculated position when liquid level; With blocking or the infrared rays of light emitting diode in the shading light electric switch not, make optoelectronic switch the phototriode conducting or end, holding wire will be exported high or low level; This switching signal is passed to the electric-control system (not shown); The electric-control system device sends the instruction that this seat in the plane power-equipment is shut down according to predefined program, thereby realizes the control to the load of each seat in the plane.When the fault eliminating, spool 11, thus make the oil that gets into transparent oil pipe 13 can get back to oil pocket 2.Certainly, control device can also have the structure of other the spool opened, and changes helical structure into such as will compress the fixed end that spring 12 is located on the valve body 10, can realize above-mentioned functions equally.
For a person skilled in the art, under the prerequisite that does not break away from structure of the present invention, can also make some distortion and improvement, these also should be regarded as protection scope of the present invention, and these can not influence effect and practical applicability that the present invention implements.
Claims (2)
1. a load control device for attached lifting scaffold comprises electric-control system and sensor, passes
Sensor is electrically connected with electric-control system; Electric-control system is provided with the program of control attached lift scaffold power-equipment operation; It is characterized in that: said sensor comprises piston shell that is connected with the lifting beam of attached lift scaffold and the piston rod that is connected with electric block; Be provided with the oil circuit outlet in the plunger shaft of piston-rod lower end; Said oil circuit outlet is through the import of pipeline connection controlled hydraulic one way valve, and the outlet of controlled hydraulic one way valve connects transparent oil pipe, and transparent oil pipe is provided with the optoelectronic switch that detects liquid level position; Optoelectronic switch is electrically connected with electric-control system, and the controlled hydraulic one way valve is provided with the control oil body from import to outlet or from the control device of outlet to the import one-way flow.
2. load control device for attached lifting scaffold as claimed in claim 1 is characterized in that: described control device comprises spool, the compression spring of being located at outlet one side, and compression spring one end connects spool, and the compression spring other end connects valve body; Also comprise the push rod of being located at import one side, lean on the valve body of said push rod one side to be provided with spiral handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101539270A CN101852010B (en) | 2010-04-23 | 2010-04-23 | Load control device for attached lifting scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101539270A CN101852010B (en) | 2010-04-23 | 2010-04-23 | Load control device for attached lifting scaffold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101852010A CN101852010A (en) | 2010-10-06 |
| CN101852010B true CN101852010B (en) | 2012-07-04 |
Family
ID=42803678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101539270A Expired - Fee Related CN101852010B (en) | 2010-04-23 | 2010-04-23 | Load control device for attached lifting scaffold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101852010B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057311B (en) * | 2018-09-11 | 2023-09-12 | 杨洪 | Double-safety falling protector for attached lifting scaffold |
| CN109594786B (en) * | 2018-12-29 | 2023-08-08 | 杨洪 | Falling protector for attaching lifting scaffold |
| CN112096045A (en) * | 2020-08-04 | 2020-12-18 | 深圳丰发一诺科技有限公司 | Overload-proof hanging basket |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5145032A (en) * | 1990-11-13 | 1992-09-08 | Figgie International, Inc. | Mason's scaffold |
| US5617931A (en) * | 1994-08-11 | 1997-04-08 | L. E. Zygmun And Company, Inc. | Modular scaffolding system |
| CN2317276Y (en) * | 1997-11-26 | 1999-05-05 | 桂林市圣安建筑外架技术开发部 | Load-limiting linkage fall-proof device for hoistable scaffold |
| WO2005054604A1 (en) * | 2003-11-27 | 2005-06-16 | Ulma C Y E, S. Coop. | Rigging system for formwork, scaffolding or moving loads in general |
| CN201003276Y (en) * | 2007-07-06 | 2008-01-09 | 贺昌义 | Full-automatic fall-proof device attached to hoistable scaffold |
| CN101333864A (en) * | 2008-07-03 | 2008-12-31 | 南通四建集团有限公司 | Mechanical type anti-fall device capable of ascending scaffold |
| CN201679223U (en) * | 2010-04-23 | 2010-12-22 | 谭徳炎 | Attachment lifting scaffold load control device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11159129A (en) * | 1997-11-28 | 1999-06-15 | Nakamitsu Engineering Kk | Hanger for scaffolding and the like |
-
2010
- 2010-04-23 CN CN2010101539270A patent/CN101852010B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5145032A (en) * | 1990-11-13 | 1992-09-08 | Figgie International, Inc. | Mason's scaffold |
| US5617931A (en) * | 1994-08-11 | 1997-04-08 | L. E. Zygmun And Company, Inc. | Modular scaffolding system |
| CN2317276Y (en) * | 1997-11-26 | 1999-05-05 | 桂林市圣安建筑外架技术开发部 | Load-limiting linkage fall-proof device for hoistable scaffold |
| WO2005054604A1 (en) * | 2003-11-27 | 2005-06-16 | Ulma C Y E, S. Coop. | Rigging system for formwork, scaffolding or moving loads in general |
| CN201003276Y (en) * | 2007-07-06 | 2008-01-09 | 贺昌义 | Full-automatic fall-proof device attached to hoistable scaffold |
| CN101333864A (en) * | 2008-07-03 | 2008-12-31 | 南通四建集团有限公司 | Mechanical type anti-fall device capable of ascending scaffold |
| CN201679223U (en) * | 2010-04-23 | 2010-12-22 | 谭徳炎 | Attachment lifting scaffold load control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101852010A (en) | 2010-10-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103626062B (en) | Based on the great Rong rope amount storage winch of special hawser | |
| CN101852010B (en) | Load control device for attached lifting scaffold | |
| CN205035847U (en) | Underground scraper decides variable hydraulic system | |
| CN203333196U (en) | Tower crane hydraulic jacking device | |
| CN103613021A (en) | Winch hydraulic control system and engineering machinery | |
| CN203602273U (en) | Hydraulic control system for controlling lifting of amplitude-variable mast of crane and crane | |
| CN201679223U (en) | Attachment lifting scaffold load control device | |
| CN201679224U (en) | Attached lifting scaffold synchronous lifting and load control system | |
| CN101852011B (en) | Synchronous lifting and load control system attached with lifting scaffold | |
| CN108117019B (en) | forklift overload detection method and device and forklift hydraulic control system | |
| CN204022187U (en) | Building hoist hydraulic pressure switch fender guard | |
| CN201395379Y (en) | Elevating mechanism hydraulic system for dustbin | |
| CN204912692U (en) | Continuous casting steel billet rollgang adjustable end stop | |
| CN202023355U (en) | Control device for lifting of load on scaffold in building construction | |
| CN104709794A (en) | Overload-preventing escalator alarm device | |
| CN204900375U (en) | Hydraulic control system on roof beam is grabbed automatically to hydraulic pressure under water | |
| CN202897885U (en) | System for preventing electro-mechanical and hydraulic integrated crawler crane arm frame from leaning backward | |
| CN205100172U (en) | Integrated control hoisting hoister | |
| CN102976227A (en) | Intelligent control jack | |
| CN203319558U (en) | Arm frame motion control system | |
| CN205275126U (en) | Side fork truck landing leg hydro -cylinder protection device | |
| CN204125086U (en) | A kind of new-type hoisting hydraulic system | |
| CN102536963A (en) | Engineering machinery as well as protection method and protection method of landing leg horizontal oil cylinder thereof | |
| JP2007297207A (en) | Boom buckling prevention device of crane | |
| CN204557741U (en) | Oil-field oil pumper sucker rod breaks bar warning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20130423 |