CN102030296A - Overload protection device for high operating basket or lifter - Google Patents
Overload protection device for high operating basket or lifter Download PDFInfo
- Publication number
- CN102030296A CN102030296A CN2011100039760A CN201110003976A CN102030296A CN 102030296 A CN102030296 A CN 102030296A CN 2011100039760 A CN2011100039760 A CN 2011100039760A CN 201110003976 A CN201110003976 A CN 201110003976A CN 102030296 A CN102030296 A CN 102030296A
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- Prior art keywords
- switch
- overload protection
- protection device
- base plate
- carriage
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- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention relates to an overload protection device for a high operating basket or a lifter. The device comprises a bottom plate of the basket or the lifter, and a bracket; and the device also comprises at least two elastic bodies connecting the bottom plate and the bracket under the bottom plate together; a switching collision plate is arranged in the middle of the bottom plate; and a switch with a signal line is arranged on the bracket corresponding to the switching collision plate. The invention has the advantages that: the overload protection device is simpler in structure, low in cost, more stable in performance, low in failure rate and more convenient to mount and maintain.
Description
Technical field
The present invention relates to a kind of overload protection device, relate in particular to a kind of overload protection device that is used for aerial work basket or elevator.
Background technology
Aloft work is the high work of a kind of danger, therefore requires the hanging basket of high-rise working or elevator to have very high safety prevention measure.Hanging basket or elevator are worked exceeding under the specified load situation, can influence the safety and the work life of equipment, even influence personal safety.
In the prior art according to patent (application number: 200920105334.X, Granted publication number: CN201343424) described, adopt the sensor acquisition load information that is loaded under the tested device base plate, signal imports control unit into, judge overload information by the control unit comparison, control.
But the problem that such structure exists is:
The first, machinery and electrical structure are complicated, and the components and parts fault rate is higher in the use.
The second, owing to use analog signal transmission, in transmission course, signal is easily disturbed, causes and weighs inaccurate or misoperation.
Three, use the accuracy requirement height of components and parts, the processing and fabricating cost is higher.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of overload protection device that is used for aerial work basket or elevator, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The present invention includes: the base plate of hanging basket or elevator, carriage; Also comprise: at least two elastic bodys; Described at least two elastic bodys link together the carriage under described base plate and the base plate; In the middle of described base plate, settle a switch to hit plate; On described carriage and to the position that inductive switch hits plate, settle a switch that has a signal wire (SW).
Compared with prior art, the invention has the beneficial effects as follows: not only structure is simpler, and is with low cost, and performance is more stable, and fault rate is low, and it is more convenient that repair and maintenance are installed.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is an A place enlarged drawing among Fig. 1.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
By Fig. 1, Fig. 2, Fig. 3 as seen: the present invention includes: the base plate 1 of hanging basket or elevator, carriage 6; Also comprise: at least two elastic bodys 2; Described at least two elastic bodys 2 link together the carriage 6 under described base plate 1 and the base plate 1; In the middle of described base plate 1, settle a switch to hit plate 3; On described carriage 6 and to the position that inductive switch hits plate 3, settle a switch 4 that has a signal wire (SW).
Described switch 4 is placed on the switch bracket 5 in the carriage 6.
Described switch 4 is to be placed on the switch bracket 5 by screw 8.
Described switch bracket 5 cooperates mounting hole with screw 8 be slotted hole.
Described at least two elastic bodys 2 are to be fixed between base plate 1 and the carriage 6 by bolt 7.
Overload protection device of the present invention comprises the elastic body that is installed between equipment under test base plate and the carriage, is used for converting the load on the base plate to linear distance; And switching device, be used to detect the elastic body compression distance, when reaching overload point, switch motion and with signal by signal wire transmits to the control system of equipment, implement overload protection.
Use bolt that elastic body is fixed between base plate and the carriage among the present invention.Switch is installed near base plate geometric centre position is hit plate, near carriage geometric centre position switch bracket is installed, switch hits plate and switch bracket is corresponding up and down, also commutative position.With screw switch is installed on the switch bracket, switch bracket is opened slotted hole, and switch can carry out upper-lower position by the slotted hole on the switch bracket to be regulated.When switch was installed, its contact vertically pointed to switch and hits plate.
Before the equipment operation, must carry out overload protection and set.To cross load carrying ability and place on the equipment bay, the up-down adjustment switch position makes its contact and switch hit that plate contacts and switch motion, and switch is screwed in this position.To cross load carrying ability and move away from base plate, will cross load carrying ability again and place on the base plate, whether validation switch shifts to an earlier date or is failure to actuate.If switch shifts to an earlier date or is failure to actuate, need readjust the switch position with reference to said method, when weight reaches overload point, switch motion.
During equipment operation; if overload condition occurs; switch motion; and signal transferred to apparatus control system, report to the police by control system control warning device, and the arrestment operation; until being unloaded to overload point when following; equipment just stops to report to the police and recovering normal working, reaches the purpose of overload protection, the safety that has improved equipment greatly.
Claims (5)
1. an overload protection device that is used for aerial work basket or elevator comprises: the base plate of hanging basket or elevator, carriage; It is characterized in that also comprising: at least two elastic bodys; Described at least two elastic bodys link together the carriage under described base plate and the base plate; In the middle of described base plate, settle a switch to hit plate; On described carriage and to the position that inductive switch hits plate, settle a switch that has a signal wire (SW).
2. the overload protection device that is used for aerial work basket or elevator according to claim 1 is characterized in that: described switch is placed on the switch bracket in the carriage.
3. the overload protection device that is used for aerial work basket or elevator according to claim 2 is characterized in that: described switch is to be placed on the switch bracket by screw.
4. the overload protection device that is used for aerial work basket or elevator according to claim 2 is characterized in that: described switch bracket and screw fit mounting hole are slotted hole.
5. the overload protection device that is used for aerial work basket or elevator according to claim 1 is characterized in that: described at least two elastic bodys be by bolt between base plate 1 and carriage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100039760A CN102030296A (en) | 2011-01-10 | 2011-01-10 | Overload protection device for high operating basket or lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100039760A CN102030296A (en) | 2011-01-10 | 2011-01-10 | Overload protection device for high operating basket or lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102030296A true CN102030296A (en) | 2011-04-27 |
Family
ID=43883826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100039760A Pending CN102030296A (en) | 2011-01-10 | 2011-01-10 | Overload protection device for high operating basket or lifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102030296A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419202A (en) * | 2011-08-22 | 2012-04-18 | 深圳市特辰科技股份有限公司 | Safety alarm system and method for material table |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1411022A1 (en) * | 2001-07-23 | 2004-04-21 | Hitachi Construction Machinery Co., Ltd. | Overload detector of vehicle for high lift work |
| CN201161869Y (en) * | 2007-12-21 | 2008-12-10 | 江苏弘盛建设工程集团有限公司 | Lift hook with over charge alarm device |
| CN201272675Y (en) * | 2008-09-05 | 2009-07-15 | 高智鹏 | Overload protection device for hanging cradle working aloft |
| CN201343424Y (en) * | 2009-01-22 | 2009-11-11 | 中际联合工业技术(北京)有限公司 | Overload protection device |
| CN201932893U (en) * | 2011-01-10 | 2011-08-17 | 上海微频莱机电科技有限公司 | Overload protection device for suspended basket or hoist in altitude operation |
-
2011
- 2011-01-10 CN CN2011100039760A patent/CN102030296A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1411022A1 (en) * | 2001-07-23 | 2004-04-21 | Hitachi Construction Machinery Co., Ltd. | Overload detector of vehicle for high lift work |
| CN201161869Y (en) * | 2007-12-21 | 2008-12-10 | 江苏弘盛建设工程集团有限公司 | Lift hook with over charge alarm device |
| CN201272675Y (en) * | 2008-09-05 | 2009-07-15 | 高智鹏 | Overload protection device for hanging cradle working aloft |
| CN201343424Y (en) * | 2009-01-22 | 2009-11-11 | 中际联合工业技术(北京)有限公司 | Overload protection device |
| CN201932893U (en) * | 2011-01-10 | 2011-08-17 | 上海微频莱机电科技有限公司 | Overload protection device for suspended basket or hoist in altitude operation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419202A (en) * | 2011-08-22 | 2012-04-18 | 深圳市特辰科技股份有限公司 | Safety alarm system and method for material table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110427 |