CN104709181A - Telescopic ladder step mechanism for fire-fighting vehicle - Google Patents
Telescopic ladder step mechanism for fire-fighting vehicle Download PDFInfo
- Publication number
- CN104709181A CN104709181A CN201310678521.8A CN201310678521A CN104709181A CN 104709181 A CN104709181 A CN 104709181A CN 201310678521 A CN201310678521 A CN 201310678521A CN 104709181 A CN104709181 A CN 104709181A
- Authority
- CN
- China
- Prior art keywords
- pedal
- rotating shaft
- fire
- fighting
- pivoted arm
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
- B60R3/02—Retractable steps or ladders, e.g. movable under shock
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention discloses a telescopic ladder step mechanism for a fire-fighting vehicle. The mechanism comprises an air cylinder piston rod, a curved jib, a rotating shaft I, a connecting rod, a crank arm, a rotating shaft II, a primary pedal, a rotating shaft III, a pedal support, a secondary pedal air cylinder and a secondary pedal. The primary pedal is connected with the secondary pedal through the pedal support; the rotating shaft III is arranged at one end of the primary pedal; the curved jib and the crank arm are connected by the connecting rod; one end of the curved jib is connected with the rotating shaft I; the middle end of the curved jib is installed at the lower end of the air cylinder piston rod; the secondary pedal air cylinder is arranged inside the secondary pedal. The mechanism is an assembly part, can be used independently, is convenient to produce and install, can be used by matching with all models of fire-fighting vehicles and can be conveniently installed below the back door of a cab.
Description
Technical field
The invention belongs to fire-fighting mechanical field, particularly relate to a kind of used in fire-fighting retractable steps mark time mechanism.
Background technology
Existing fire-fighting each side technology all haves much room for improvement, just can better guarantee the safety of life security and property, fire is eliminated in order to realize fast speed, mechanism can make in scene of fire that fire fighter is convenient when bearing equipment, upper and lower vehicle rapidly, save time, better eliminate safe hidden trouble, property damage and personal casualty are dropped to minimum.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of safety can guaranteeing personnel, structure is simple, used in fire-fighting retractable steps mark time mechanism with low cost.
The present invention takes following technical scheme to realize: a kind of used in fire-fighting retractable steps mark time mechanism, it comprises cylinder piston rod, bent pivoted arm, rotating shaft one, connecting rod, crank arm, rotating shaft two, one-level pedal, rotating shaft three, treadle supporting, secondary pedal cylinder and secondary pedal, described one-level pedal to be marked time with secondary by treadle supporting and is connected, described one-level pedal one end is provided with rotating shaft three, bent pivoted arm is connected with cranking arm by described connecting rod, one end of described bent pivoted arm is connected with rotating shaft one, the middle-end of described bent pivoted arm is arranged on the lower end of cylinder piston rod, secondary inside of marking time is provided with described secondary pedal cylinder.
Described one-level pedal both sides are provided with protection extension spring.
The present invention has following beneficial effect in sum: this mechanism is assembly parts, independently can use, manufacture and installation is convenient, and can with each fire extinguishing tanker vehicle with the use of, be arranged on the below at operator's compartment back door easily.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Wherein: 1, cylinder piston rod; 2, bent pivoted arm; 3, rotating shaft one; 4, connecting rod; 5, crank arm; 6, rotating shaft two; 7, one-level pedal; 8, rotating shaft three; 9, treadle supporting; 10, secondary pedal cylinder; 11, secondary pedal; 12, antifriction-bearing box; 13, extension spring is protected.
Detailed description of the invention
As shown in Figure 1, a kind of used in fire-fighting retractable steps mark time mechanism, it comprises cylinder piston rod 1, bent pivoted arm 2, rotating shaft 1, connecting rod 4, crank arm 5, rotating shaft 26, one-level pedal 7, rotating shaft 38, treadle supporting 9, secondary pedal cylinder 10 and secondary pedal 11, described one-level pedal 7 to be marked time with secondary by treadle supporting 9 and is connected, described one-level pedal 7 one end is provided with rotating shaft 38, bent pivoted arm 25 to be connected with cranking arm by described connecting rod 4, one end of described bent pivoted arm 2 is connected with rotating shaft 1, the middle-end of described bent pivoted arm 2 is arranged on the lower end of cylinder piston rod 1, secondary inside of marking time is provided with described secondary pedal cylinder 10.
Described one-level pedal 7 both sides are provided with protection extension spring 13.
Secondary pedal supports reciprocating in orbit by antifriction-bearing box (12), thus realizes stretching out and recovery of secondary pedal 11.
Overall; this institution secure is convenient; as long as open operator's compartment back door; two-stage stepping just can stretch out automatically in mechanism, and after closedown tail gate, this mechanism is just recovered to two-stage stepping automatically marks time in assembly; and one-level pedal 7 both sides are provided with protection extension spring (13); even if cylinder is died, one-level pedal 7 also can not fall to stretching out outside car, injures traffic safety, and this assembly is no more than in collapsed state the driving safety that car load width can not affect fire extinguishing tanker.
After fire extinguishing tanker arranges retractable steps mark time mechanism after installation operator's compartment twin-stage, the terrain clearance that one-level marks time is arranged too high after solving original big-and-middle-sized driving cab of fire fighting truck, fire fighters bears air respiratorresuscitator and the problem of difficulty of getting on or off the bus after equipping, the terrain clearance that the first order is marked time is reduced to present 300mm by original terrain clearance 550mm ~ 650mm, and two or three grades of spacing of marking time all ensure at 300mm, meeting national legislation item, having made fire fighters safer when bearing air respiratorresuscitator and weight equipment is got on or off the bus, convenient and rapid.
The above is embodiments of the invention, therefore all equivalences done according to structure, feature and the principle described in the present patent application scope change or modify, and are included in patent claim of the present invention.
Claims (2)
1. a used in fire-fighting retractable steps mark time mechanism, it comprises cylinder piston rod, bent pivoted arm, rotating shaft one, connecting rod, crank arm, rotating shaft two, one-level pedal, rotating shaft three, treadle supporting, secondary pedal cylinder and secondary pedal, it is characterized in that: described one-level pedal to be marked time with secondary by treadle supporting and is connected, described one-level pedal one end is provided with rotating shaft three, bent pivoted arm is connected with cranking arm by described connecting rod, one end of described bent pivoted arm is connected with rotating shaft one, the middle-end of described bent pivoted arm is arranged on the lower end of cylinder piston rod, secondary inside of marking time is provided with described secondary pedal cylinder.
2. used in fire-fighting retractable steps mark time mechanism according to claim 1, is characterized in that: described one-level pedal both sides are provided with protection extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310678521.8A CN104709181A (en) | 2013-12-14 | 2013-12-14 | Telescopic ladder step mechanism for fire-fighting vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310678521.8A CN104709181A (en) | 2013-12-14 | 2013-12-14 | Telescopic ladder step mechanism for fire-fighting vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104709181A true CN104709181A (en) | 2015-06-17 |
Family
ID=53409081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310678521.8A Pending CN104709181A (en) | 2013-12-14 | 2013-12-14 | Telescopic ladder step mechanism for fire-fighting vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104709181A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711505A (en) * | 2016-03-17 | 2016-06-29 | 安徽安凯汽车股份有限公司 | Automatic device for bus movable tread |
| US11987210B2 (en) * | 2021-11-15 | 2024-05-21 | WINBO—Dongjian Automotive Technology Co., Ltd. | Connecting rod structure, footboard device, and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100164196A1 (en) * | 2005-02-02 | 2010-07-01 | Collins Douglas A | Telescoping Vehicle Step |
| EP2335975A1 (en) * | 2009-12-17 | 2011-06-22 | Iveco Magirus AG | Foldable platform for vehicles |
| CN202728097U (en) * | 2012-08-31 | 2013-02-13 | 明光市浩淼消防科技发展有限公司 | Telescopic double-step ladder in back row of fire truck cab |
| US20130154230A1 (en) * | 2011-12-15 | 2013-06-20 | Michael P. Ziaylek | Automated retractable step apparatus utilizing over-center locking mechanism |
| CN203698120U (en) * | 2013-12-10 | 2014-07-09 | 明光市浩淼消防科技发展有限公司 | Telescopic ladder type stepping-on mechanism for fire fighting truck |
-
2013
- 2013-12-14 CN CN201310678521.8A patent/CN104709181A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100164196A1 (en) * | 2005-02-02 | 2010-07-01 | Collins Douglas A | Telescoping Vehicle Step |
| EP2335975A1 (en) * | 2009-12-17 | 2011-06-22 | Iveco Magirus AG | Foldable platform for vehicles |
| US20130154230A1 (en) * | 2011-12-15 | 2013-06-20 | Michael P. Ziaylek | Automated retractable step apparatus utilizing over-center locking mechanism |
| CN202728097U (en) * | 2012-08-31 | 2013-02-13 | 明光市浩淼消防科技发展有限公司 | Telescopic double-step ladder in back row of fire truck cab |
| CN203698120U (en) * | 2013-12-10 | 2014-07-09 | 明光市浩淼消防科技发展有限公司 | Telescopic ladder type stepping-on mechanism for fire fighting truck |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711505A (en) * | 2016-03-17 | 2016-06-29 | 安徽安凯汽车股份有限公司 | Automatic device for bus movable tread |
| US11987210B2 (en) * | 2021-11-15 | 2024-05-21 | WINBO—Dongjian Automotive Technology Co., Ltd. | Connecting rod structure, footboard device, and vehicle |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150617 |
|
| WD01 | Invention patent application deemed withdrawn after publication |