CN102323155B - Load test device for insulating climbing square ladder, insulating ladder, single ladder and herring bone ladder - Google Patents
Load test device for insulating climbing square ladder, insulating ladder, single ladder and herring bone ladder Download PDFInfo
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- CN102323155B CN102323155B CN 201110146500 CN201110146500A CN102323155B CN 102323155 B CN102323155 B CN 102323155B CN 201110146500 CN201110146500 CN 201110146500 CN 201110146500 A CN201110146500 A CN 201110146500A CN 102323155 B CN102323155 B CN 102323155B
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- ladder
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 230000009194 climbing Effects 0.000 title claims abstract description 16
- 241000252203 Clupea harengus Species 0.000 title abstract 2
- 210000000988 bone and bone Anatomy 0.000 title abstract 2
- 235000019514 herring Nutrition 0.000 title abstract 2
- 239000012530 fluid Substances 0.000 claims description 19
- 238000011068 loading method Methods 0.000 claims description 16
- 230000003028 elevating effect Effects 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention provides a load test device for an insulating climbing square ladder, an insulating ladder, a single ladder and a herring bone ladder, which comprises a ladder fixing frame, a pressure mechanism, a hydraulic system and a lifting mechanism. The pressure mechanism comprises a hook part and an action part fixed on a hook in a detachable mode. The hook part is connected with the hydraulic system. The action part acts on stepping sections of the ladder. The hydraulic system comprises a hydraulic pipeline, a hydraulic pump, a hydraulic pressure gauge and a power supply, wherein the hydraulic pump and the hydraulic pressure gauge are connected with the hydraulic pipeline; and the power supply is connected with the hydraulic pump. A working medium is filled in the hydraulic pipeline. The lifting mechanism is fixedly connected with the ladder fixing frame. The device provided by the invention can be conveniently used for carrying out load test on the stepping sections of various ladders, so that the using safety is ensured.
Description
Technical field
The invention belongs to power domain, particularly the load testing device of a kind of climbing square ladder that insulate, insulating ladder, single ladder, double ladder.
Background technology:
The on-the-spot using appliances such as utensil side's ladder, insulating ladder, single ladder and double ladder of ascending a height of electric system, usually in (transformer station) charging equipment zone, operation is used, all kinds of utensils of ascending a height not only will ensure the rules requirement of withstand voltage test, and need to possess the loading test (ladder step test) that manpower is ascended a height
Therefore; electric system often can be used climbing square ladder, insulating ladder, single ladder and double ladder etc.; because the ladder volume of above-mentioned all kinds of models is large, heavy; mobile carrying is inconvenient; therefore; the power equipment maintaining personnel reduce the utilization factor of these ladders as much as possible; then, these ladders must be used in the unavoidable ground of some situation, when using; these ladders have passed through wind and weather for a long time; therefore, the reliability of ladder and loading situation are also unclear, if without test; in the use procedure of ladder, security incident probably occurs.And at present, also without any the test unit of testing the ladder loading.
Summary of the invention
Technical matters to be solved by this invention is to provide the load testing device of a kind of climbing square ladder that insulate, insulating ladder, single ladder, double ladder, to detect the loading of ladder, the generation of decrease safent accident.
For achieving the above object, the invention provides a kind of insulation climbing square ladder, insulating ladder, single ladder, the load testing device of double ladder, comprise the ladder fixed mount, pressure mechanism, hydraulic system, and elevating mechanism, described pressure mechanism comprises hook portion, be fixed on hook portion to dismounting and act on the pressing plate on joint of stepping on of ladder, described hook portion is connected with hydraulic system by the piston slide bar, described pressing plate saves vertical setting with stepping on of ladder, under the effect of hydraulic system, by piston slide bar and hook portion, pressing plate is applied to ladder to be stepped on joint, test the loading that joint can bear of stepping on of ladder, described hydraulic system comprises the hydralic pressure gauge of the pressure in hydraulic pump, conduit under fluid pressure and demonstration conduit under fluid pressure, described hydraulic pump offers conduit under fluid pressure by hydraulic pressure chamber by the hydraulic fluid in hydraulic pump, described hydraulic pump is connected with power supply, and described elevating mechanism is fixedly connected with the ladder fixed mount, described elevating mechanism comprises the piston/cylinder be connected with conduit under fluid pressure, on this piston/cylinder, is provided with multi-level piston, is provided with the ladder shaft collar on multi-level piston.
As most preferred embodiment of the present invention, the face that described ladder fixed mount contacts with ladder is dip plane;
As most preferred embodiment of the present invention, the angle that described dip plane tilts is 60 °;
As most preferred embodiment of the present invention, described ladder fixed mount is comprised of a plurality of rod members and slide block, described rod member and slide block are bolted fixing, are provided with a plurality of fixed blocks on described conduit under fluid pressure, and this fixed block is connected by screw rod with the slide block of ladder fixed mount;
As most preferred embodiment of the present invention, the service portion of described pressure mechanism saves vertical setting with stepping on of ladder;
As most preferred embodiment of the present invention, the described ladder rotating disk that is provided with plane, outstanding ladder shaft collar place on described ladder shaft collar.
Compared with prior art, the insulate load testing device of climbing square ladder, insulating ladder, single ladder, double ladder of the present invention at least has the following advantages: apparatus of the present invention at the trial, by pressure mechanism, each loading position of ladder is tested, change the loading position by lifting rotation mechanism, so, the present invention can be tested all loadings position of various ladders, after test, if loading is not up to standard, need repairing and reinforce rear the use, if loading is up to standard, directly use, like this, better through the security of the proof ladder of apparatus of the present invention.
The accompanying drawing explanation
Fig. 1 is the structural representation of load testing device of the present invention;
Fig. 2 is the another kind of distressed structure schematic diagram of ladder fixed mount in load testing device of the present invention;
Fig. 3 is the structural representation of elevating mechanism in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the insulate load testing device of climbing square ladder, insulating ladder, single ladder, double ladder of the present invention is described in detail:
Refer to shown in Fig. 1, the insulate load testing device of climbing square ladder, insulating ladder, single ladder, double ladder of the present invention comprises ladder fixed mount 1, ladder is exerted pressure and the pressure mechanism 3 of pulling force, pressure mechanism 3 provided to the hydraulic system 5 of power and the elevating mechanism 7 of step by step ladder being realized the loading test.
The face that described ladder fixed mount 1 contacts with ladder is dip plane, and the angle of inclination is 60 ° and is advisable.
In the present invention, described ladder fixed mount 1 is structure as a whole, then for easy to use, this ladder fixed mount 1 can be also fabricated structure, as shown in Figure 2, described ladder fixed mount is comprised of a plurality of rod members and slide block, described rod member and slide block are bolted fixing, for the ladder fixed mount is fixed, be provided with equally a plurality of fixed blocks on described conduit under fluid pressure, this fixed block is connected by screw rod with the slide block of ladder fixed mount, like this, the ladder fixed mount just has been fixed, during use, only need at the scene the ladder fixed mount be bolted and get final product, easy to use.
Described pressure mechanism 3 is fixed on hook portion 31 with comprising hook portion 31, dismounting and acts on the pressing plate 33 on joint of stepping on of ladder, described hook portion 31 is connected with hydraulic system 5 by piston slide bar 35, described pressing plate 33 saves vertical setting with stepping on of ladder, like this, under the effect of hydraulic system 5, by piston slide bar 35 and hook portion 31, pressing plate 33 can be applied to ladder and step on joint, thereby, test the loading that joint can bear of stepping on of ladder.
Described hydraulic system 5 comprises hydraulic pump, conduit under fluid pressure 53, hydralic pressure gauge 55 and the power supply be connected with hydraulic pump, be filled with actuating medium in conduit under fluid pressure, described hydraulic pump offers conduit under fluid pressure 53 by hydraulic pressure chamber by the actuating medium in hydraulic pump (being the fluid of hydraulic pressure), like this, by the pressure in conduit under fluid pressure, make the pressing plate of pressure mechanism save and apply acting force stepping on of ladder.
Load testing device of the present invention not only is provided with the hydralic pressure gauge of testing hydraulic pipeline 53, further, in the hook portion of pressure mechanism, also is provided with the partial pressure table, and wherein, the general pressure table shows that the standard value of general pressure is ± 5 kgfs, and the partial pressure table is 1765N.
Described elevating mechanism 7 comprises the piston/cylinder 71 be connected with conduit under fluid pressure 53, firsts and seconds piston 73,75 is arranged on piston/cylinder 71, be provided with ladder shaft collar 77 on second piston 75, be provided with the ladder rotating disk 79 on plane, outstanding ladder shaft collar place on ladder shaft collar 77, during use, the touchdown point of ladder is fixed on ladder shaft collar 77 and carries out the loading test, for the ladder that needs the multiaspect test, after having tested the one side loading, by ladder rotating disk 79, make ladder rotate to an angle to carry out the test of next to be tested.Namely, by ladder rotating disk 79, can realize each use face of ladder is carried out to load of key.Moving up and down of firsts and seconds piston 73,75 can guarantee the test height of ladder.
The present invention makes pressure mechanism apply acting force to ladder by pressure system, thereby, the loading that joint can bear of stepping on of ladder is tested to the generation of minimizing accident.
The foregoing is only one embodiment of the present invention, it not whole or unique embodiment, the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading instructions of the present invention, be claim of the present invention and contain.
Claims (6)
1. an insulation climbing square ladder, insulating ladder, single ladder, the load testing device of double ladder, comprise ladder fixed mount (1), pressure mechanism (3), hydraulic system (5), and elevating mechanism (7), described pressure mechanism (3) comprises hook portion (31), be fixed on to dismounting the pressing plate (33) on joint of stepping on that hook portion (31) went up and acted on ladder, described hook portion is connected with hydraulic system (5) by piston slide bar (35), described pressing plate (33) saves vertical setting with stepping on of ladder, under the effect of hydraulic system (5), by piston slide bar (35) and hook portion (31), pressing plate (33) is applied to ladder to be stepped on joint, test the loading that joint can bear of stepping on of ladder, described hydraulic system (5) comprises hydraulic pump (51), conduit under fluid pressure (53) and shows the hydralic pressure gauge (55) of the pressure in conduit under fluid pressure, described hydraulic pump (51) offers conduit under fluid pressure (53) by hydraulic pressure chamber by the hydraulic fluid in hydraulic pump (51), described hydraulic pump is connected with power supply, described elevating mechanism (7) is fixedly connected with ladder fixed mount (1), described elevating mechanism (7) comprises the piston/cylinder (71) be connected with conduit under fluid pressure, this piston/cylinder is provided with multi-level piston on (71), is provided with ladder shaft collar (77) on multi-level piston.
2. the load testing device of insulation climbing square ladder as claimed in claim 1, insulating ladder, single ladder, double ladder, it is characterized in that: the face that described ladder fixed mount (1) contacts with ladder is dip plane.
3. the load testing device of insulation climbing square ladder as claimed in claim 2, insulating ladder, single ladder, double ladder, it is characterized in that: the angle that described dip plane tilts is 60 °.
4. the load testing device of insulation climbing square ladder as claimed in claim 1, insulating ladder, single ladder, double ladder, it is characterized in that: described ladder fixed mount is comprised of a plurality of rod members and slide block, described rod member and slide block are bolted fixing, be provided with a plurality of fixed blocks on described conduit under fluid pressure, this fixed block is connected by screw rod with the slide block of ladder fixed mount.
5. the load testing device of insulation climbing square ladder as claimed in claim 1, insulating ladder, single ladder, double ladder, it is characterized in that: the service portion of described pressure mechanism (3) saves vertical setting with stepping on of ladder.
6. the load testing device of insulation climbing square ladder as claimed in claim 1, insulating ladder, single ladder, double ladder, is characterized in that: the ladder rotating disk (79) that is provided with outstanding ladder shaft collar (77) plane, place on described ladder shaft collar (77).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110146500 CN102323155B (en) | 2011-06-01 | 2011-06-01 | Load test device for insulating climbing square ladder, insulating ladder, single ladder and herring bone ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110146500 CN102323155B (en) | 2011-06-01 | 2011-06-01 | Load test device for insulating climbing square ladder, insulating ladder, single ladder and herring bone ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102323155A CN102323155A (en) | 2012-01-18 |
| CN102323155B true CN102323155B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110146500 Active CN102323155B (en) | 2011-06-01 | 2011-06-01 | Load test device for insulating climbing square ladder, insulating ladder, single ladder and herring bone ladder |
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| CN (1) | CN102323155B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505150A (en) * | 2017-04-14 | 2017-12-22 | 威海光威复合材料股份有限公司 | Military aircraft working stand dynamic load fatigue life test machine |
| CN107860597A (en) * | 2017-09-30 | 2018-03-30 | 苏州奔机电有限公司 | A kind of step dead-load detection frock |
| KR101961769B1 (en) * | 2018-07-30 | 2019-03-25 | 목포대학교산학협력단 | Safety testing apparatus of ladder frame and safety testing method of ladder frame using the same |
| KR101942936B1 (en) * | 2018-07-30 | 2019-01-28 | 목포대학교산학협력단 | Safety testing apparatus of ladder frame and safety testing method of ladder frame using the same |
| KR101954825B1 (en) * | 2018-07-31 | 2019-06-11 | 목포대학교산학협력단 | Method for evaluating ladder rung using torsion test |
| CN109668719A (en) * | 2018-12-28 | 2019-04-23 | 莱茵技术（上海）有限公司 | A kind of multifunctional testing frame for light industrial goods |
| CN112082795A (en) * | 2020-09-11 | 2020-12-15 | 山东法尔消防科技服务有限公司 | Fire control ladder strength detection device that ascends a height |
| CN112268580A (en) * | 2020-10-20 | 2021-01-26 | 西安工程大学 | Safety evaluation method for ascending vertical ladder |
| CN114371083A (en) * | 2021-12-06 | 2022-04-19 | 广西电网有限责任公司电力科学研究院 | Static load tension test device and method for hard ladder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201623400U (en) * | 2009-10-20 | 2010-11-03 | 上海市电力公司宝山供电分公司 | Hydraulic lifting insulating platform for distribution line live-wire work |
| CN101710031B (en) * | 2009-12-11 | 2011-03-09 | 江苏省电力公司镇江供电公司 | Ladder detection device |
| CN201772997U (en) * | 2010-07-28 | 2011-03-23 | 河南省电力公司三门峡供电公司 | Portable ladder detecting device |
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| CN102323155A (en) | 2012-01-18 |
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Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121129 |
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Effective date of registration: 20121129 Address after: Xianyang City, Shaanxi Province, 712000 Applicant after: Xianyang Power Supply Bureau Applicant after: State Grid Corporation of China Address before: Xianyang City, Shaanxi Province, 712000 Applicant before: Xianyang Power Supply Bureau |
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