CN201095955Y - Vehicle-mounted fire-fighting ladder - Google Patents
Vehicle-mounted fire-fighting ladder Download PDFInfo
- Publication number
- CN201095955Y CN201095955Y CNU2007201734031U CN200720173403U CN201095955Y CN 201095955 Y CN201095955 Y CN 201095955Y CN U2007201734031 U CNU2007201734031 U CN U2007201734031U CN 200720173403 U CN200720173403 U CN 200720173403U CN 201095955 Y CN201095955 Y CN 201095955Y
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- ladder
- fire ladder
- locking mechanism
- ratchet
- fire
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Abstract
The utility model discloses a vehicle-hanging type fire ladder, which comprises a fire ladder body, a lifting ladder and a lock mechanism thereof, a tray swing mechanism, a fire ladder sliding guide way, a fixed device, an inclination angle regulating and positioning and connecting mechanism and a ladder leg bracket. The fire ladder comprises two to four sections, wherein, each section ladder comprises a ladder leg, a carrying shaft, a carrying sleeve, a guide wheel and a ladder step, the guide wheel does the reciprocating movement inside a supporting guide-track groove; the lifting ladder and the lock mechanism comprise a housing, a drive set and a hoisting cylinder; the tray swing mechanism has a T-shaped universal structure which is supported by four sets of rolling bearings, the inclination angle regulating and positioning and connecting mechanism is mainly used for adjusting a handle to drive a threaded rod to rotate and to ensure that a fixed bracket at one end linked with a shaft lever rotates; the ladder leg bracket comprises a supporting rod with a rack, a rotation lock mechanism, a protective jacket of the lock mechanism and the fixed bracket. The vehicle-hanging type fire ladder has simple structure, easy operation, high degree of automation, steady ladder lifting, high load intensity, security and reliability.
Description
Technical field
The utility model relates to a kind of fire fighting equipment, and concrete is a kind of fire ladder.
Background technology
In fire fighting equipment, fire ladder is as the high instrument of pedaling of fire attack and rescue, play very important ageing, the applicant had once described the hanging fire ladder of a kind of car in another part Chinese patent application prospectus CN2364196 (open day is on 02 16th, 2000), it comprises fire ladder main body and lifting gear thereof, locking device, the pallet slew gear, fire ladder rail plate and fastening devices, the inclination angle is adjusted and detent mechanism, connect and supporting mechanism, the fire ladder main body of the hanging fire ladder of this car has adopted embedding telescopic, pedal high operation under the condition of lifting gear employing artificial mechanism lifting and the high fire ladder of act, fire ladder can not synchronous extension, locking and withdrawal, frictional force is big, and the degree of automation is lower.
The utility model content
In view of this, the technical problems to be solved in the utility model be to provide a kind of simple in structure, easy to operate, function is many, applied widely, the hanging fire ladder of removable car that automaticity is high.
For solving the problems of the technologies described above, the technical solution of the utility model is the hanging fire ladder of realizing like this of a kind of car, mainly comprise the fire ladder main body and rise ladder and locking mechanism, pallet slew gear, fire ladder rail plate and fastening devices, adjustment location, inclination angle and coupling mechanism and terraced leg support, fire ladder comprises 2-4 ladder successively, each joint ladder includes terraced leg, loaded axle, carrying cover, directive wheel and stile, and this directive wheel moves back and forth in supporting guide; Rise ladder and locking mechanism, comprise shell, drive unit and winding drum, winding drum is arranged in the shell, and drive unit drives the winding drum rotation, and described winding drum is connected with ratchet brake self-locking device; The pallet slew gear is roller bearings " T " font universal structure, comprises the terraced pull bar of lock, revolution pallet, support arm, rotary disk, supporting guide and roller, lock on the stile that terraced pull bar is arranged in terraced leg, and pull bar self-locking at one end; Above-mentioned adjustment location, inclination angle and coupling mechanism are mainly interconnected and are formed by nut, stop pin, connection axostylus axostyle, fixed mount, bearing holder (housing, cover) threaded rod, revolution connecting rod, regulating handle, pull bar, alignment pin, position and lock mechanism, regulating handle drives the threaded rod rotation, one end is fixed by stop pin, relative nut of threaded rod and fixing bearing holder (housing, cover), fixed mount rotation, make the fixed mount of an end, connect axostylus axostyle generation axially-movable, connect on the stile of axostylus axostyle connection fire ladder main body; Above-mentioned terraced leg support comprises support bar, rotary locking mechanism, locking mechanism maintainance set and the fixed mount that is provided with tooth bar, one locking mechanism maintainance set is set on the fixed mount of a U-shaped, fixing rotary locking mechanism on the locking mechanism maintainance set, rotary locking mechanism is an elastic locking mechanism, one end of rotary locking mechanism connects lock handle, and described supporting rod clamp is located in the elastic locking mechanism.
Above-mentioned ratchet brake self-locking device can comprise two groups of interconnective ratchets, ratchet, ratchet extension spring, this ratchet and the coaxial setting of described winding drum.
The ratchet opener also is installed between above-mentioned ratchet, the ratchet.
One end of above-mentioned fire ladder main body connects a remote control injection apparatus.
Also be provided with lifting gear and personal protection pulley on the above-mentioned fire ladder main body.
The technique effect that the utility model reaches is as follows: the hanging fire ladder of this car simple in structure, the liter that is adopted ladder can guarantee that with locking mechanism fire ladder is in maximum extended height scope inter-sync stretching, extension, locking and condensation.The pallet slew gear that is adopted guarantees fire ladder level 180 degree revolutions in certain ladder inclination angle scope, and can also locate arbitrarily at electrodeless within the specific limits adjustment ladder inclination angle with leading screw, the nut of forward and reverse adjustment of bindiny mechanism adjustment location in inclination angle, makes the lifting of fire ladder be controlled at best inclination angle state all the time.Auxiliary supporting leg is opened auxiliary support bar and rotation makes its and fire ladder be gusseted under the telescopic action of spring, terraced beam is worked aiding the strong effect, the stability of assurance fire ladder lifting, the needs of cat ladder in the time of can satisfying mobile setting up.Adopt said structure, fire ladder simple to operate, the automaticity height rises ladder steadily, and the density of load is big, and is safe and reliable.
Description of drawings
Fig. 1 is the external structure schematic diagram of the hanging fire ladder of the utility model car;
Fig. 2 is the terraced leg structural representation of fire ladder main body;
Fig. 3 is for rising the structural representation of ladder and locking mechanism;
Fig. 4 is the vertical cut-away view in Fig. 3 center;
Fig. 5 is the structural representation of the terraced mechanism of lock;
Fig. 6 is the structural representation of pallet slew gear;
Fig. 7 is the structural representation of inclination angle adjustment and detent mechanism;
Fig. 8 is the structural representation of auxiliary supporting leg.
Number in the figure is described as follows:
The terraced 103-bed ladder of joint among the 101-fly 102-
2-locks terraced mechanism
201-locks the little axle of terraced pawl 202-guiding position restoring claw 203-204-and locks the terraced retainer 205-of mechanism back-moving spring 206-stage clip
3-rises ladder and locking mechanism
The extension spring of 301-housing 302-driving shaft 303-bearing 305-base plate 306-outer cover 307-brake assemblies 308-bearing 310-ratchet 311-winding drum 312-ratchet 313-ratchet opener 314-ratchet
4-pallet slew gear
401-locks terraced pull bar 402-revolution pallet 403-support arm 404-rotary disk 405-supporting guide 406-roller
The 5-inclination angle is adjusted and detent mechanism
501-nut 502-stop pin 503-connects axostylus axostyle 504-fixed mount 505-bearing holder (housing, cover), 506-T type threaded rod 507-revolution connecting rod 508-regulating handle 509-pull bar 510-alignment pin 511-position and lock mechanism
6-assists supporting leg
601-support bar 602-fixed mount 603-rotary locking mechanism 604-lock handle 605-locking mechanism maintainance set
7-guiding trestle 8-locating support 10-supporting guide 11-attachment bracket 12-fire ladder car body 13-remotely-controlled cannon holder 14-remotely-controlled cannon
81-loaded axle 82-carrying cover 83-directive wheel 84-stile.
The specific embodiment
As shown in Figure 1, be the hanging fire ladder external structure of car of the present utility model, mainly comprise the fire ladder main body and rise ladder and locking mechanism 3, pallet slew gear 4, inclination angle adjustment and detent mechanism 5.
The fire ladder main body is arranged at the top of fire ladder car body 12, and by guiding trestle 7, attachment bracket 11 and locating support 8 supports or fixing, the fire ladder main body is made up of fly 101, middle joint ladder 102, bed ladder 103, the ladder beam adopts box-type insertion slot type structure design, material is the military alloy aluminum of high strength, as shown in Figure 2, described fire ladder comprises 2-4 ladder successively, each joint ladder includes terraced leg, loaded axle 81, carrying cover 82, directive wheel 83 and stile 84, and directive wheel 83 moves back and forth on supporting guide 10 and makes the fire ladder main body stretch out and bounce back.
As shown in Figure 3, Figure 4, be the lifting and the locking mechanism 3 of fire ladder, main following several parts are formed: shell, drive unit and locking device.Shell mainly comprises outer cover 306, housing 301, base plate 305 etc., and shell plays effect fixing and that support.Drive unit comprises driving shaft 302, winding drum 311, bearing 303,308 and copper sheathing.The effect of this device is to transmit to rise the required power of ladder, reduces the frictional force that rises in the terraced process.Locking device comprises lock handle, is connected on ratchet 310 on the winding drum 311, the ratchet 310 and also is provided with ratchet 312, ratchet opener 313, ratchet extension spring 314 and brake assemblies 307.The main effect of this device is the operating position that keeps fire ladder, when fire ladder rises to the operating position, provides locking action, prevents that fire ladder from gliding.The terraced mechanism of the liter of fire ladder also comprises ratchet mechanism, cable wire, assembly pulley and descending operation bar composition, makes fly 101 and middle joint ladder 102 rise ladder synchronously by the wire rope on it through assembly pulley.The ratchet check mechanism is installed on the winding drum 311.
It is as follows with the operating principle of locking to rise ladder: driving force passes to driving shaft 302 by driving handle, driving shaft 302 is given winding drum 311 with transmission of power, winding drum 311 by its go up around steel wire and assembly pulley drive the fire ladder rising, one end of winding drum 311 has ratchet 310 and ratchet 312, a self-locking mechanism is formed in ratchet extension spring 314, has auto-lock function, ratchet 310 rotates with winding drum 311, when fire ladder rises to assigned address, winding drum 311 stops operating, ratchet 312 and ratchet 310 interact, and self-locking takes place, and fire ladder is maintained fixed under the situation that not driven by external force.
Rise terraced mechanism three kinds of duties are arranged: rise ladder, fix and fall ladder.When rising ladder, winding drum 311 drives ratchets 310 and rotates counterclockwise, and drives fire ladder and rises, and this moment, ratchet 310 self-locking can not take place, and fire ladder can unrestricted rising in working depth; In the time of fixedly, only need remove the driving force by winding drum 310 inputs, fire ladder produces the trend of whereabouts under the effect of self gravitation, drives ratchet 310 and turns clockwise, and the wheel between cog that ratchet 312 enters ratchet 310 produces self-locking, and fire ladder is fixing thereupon; During decline, operation ratchet opener 313 separates ratchet 312 and ratchet 310, fire ladder descends under the effect of self gravitation, can operate ratchet opener 313 in the fire ladder decline process, and it is stopped at any time, but note controlling its decrease speed, in order to avoid damage self-locking mechanism.
As shown in Figure 5, for locking terraced structural scheme of mechanism, lock terraced mechanism 2 and comprise that the terraced pawl 201 of lock, guiding position restoring claw 202, little axle 203, the terraced mechanism of lock retainer 204, back-moving spring 205 and stage clip 206 form, lock body mechanism and above-mentioned check mechanism are cooperatings.Check mechanism can make fire ladder stop at any time at an arbitrary position and can control the terraced speed of falling; When the fire ladder positioning and fixing, both play fixation simultaneously, guarantee safety.When rising ladder, locking the chamfered portion of terraced pawl 201 contacts with the stile that faces the joint ladder mutually, it is retracted in the terraced mechanism of the lock retainer 204, after the height of terraced pawl 201 risings of lock surpasses this stile, lock terraced pawl 201 and under the effect of stage clip 206, eject the terraced mechanism of lock retainer 204, stop a liter ladder action this moment, under the effect of ladder gravity, lock terraced pawl 201 and just can be hung on the stile that faces joint ladder mutually, with the fixing operating position of fire ladder.When receiving (falling) ladder, fall ladder then to the stile that rises earlier, guiding position restoring claw 202 is under the stile effect of facing the joint ladder mutually, and the pulling force that overcomes back-moving spring 205 rotates around little axle 203, and will lock terraced pawl 201 and push back in the lock terraced mechanism retainer 204, with smooth withdrawal fire ladder.
As shown in Figure 6, pallet slew gear 4 is to make the operation of fire ladder, the vitals of support, also is the main supporting body of fire ladder.Pallet slew gear 4 adopts " T " font universal structure of quadruplet roller bearings, and it comprises the terraced pull bar 401 of lock, revolution pallet 402, support arm 403, rotary disk 404, supporting guide 405 and roller 406.Locking terraced pull bar 401 is arranged on the stile 84, and pull bar self-locking at one end, just the fire ladder main body is positioned in the revolution pallet 4, along with the roller 46 of bearings rotates in supporting guide 10, guide rail rotary disk 404 also rotates synchronously, be used to satisfy the adjusting requirement in ladder inclination angle and ladder orientation, guarantee fire ladder 180 ° of revolutions of level in the scope of certain ladder inclination angle.
As shown in Figure 7, being adjustment location, inclination angle and coupling mechanism 5, is the vitals that fire-fighting ladder ladder inclination angle is played adjusting and positioning action.Mainly form, connect axostylus axostyle 503 and connect on the stile 804 of fire ladder main bodys by nut 501, stop pin 502, connection axostylus axostyle 503, fixed mount 504, bearing holder (housing, cover) 505, T type threaded rod 506, revolution connecting rod 507, regulating handle 508, pull bar 509, alignment pin 510, position and lock mechanism 511.During forward and reverse rotation regulating handle 508, regulating handle 508 drives threaded rod precession or back-out, nut 501 connecting axle bearing sleeves 505, fixed mount 504 together rotate, thereby the adjustment location, inclination angle, nut of having realized the fire ladder main body can stepless within the specific limits adjustment ladder inclination angles and location arbitrarily, make the lifting of fire ladder be controlled at the optimum angle of incidence state all the time.Quick connecting rod quick connection and the stability of ladder lifting that can guarantee fire ladder and fire fighting truck chassis.
As shown in Figure 8, auxiliary supporting leg 6 for the utility model fire ladder, form by the support bar 601 that is provided with tooth bar and rotary locking mechanism 603, locking mechanism maintainance set 605 and fixed mount 602, one locking mechanism maintainance set 605 is set on the fixed mount 602 of a U-shaped, fixing rotary locking mechanism 603 on the locking mechanism maintainance set 605, rotary locking mechanism 603 is an elastic locking mechanism, but the connection lock handle 604 of an end precession of rotary locking mechanism 603, support bar 601 is located on the elasticity rotary locking mechanism 603.The two ends of two auxiliary support bars 601 are attached on the fire ladder main body, its top is provided with steering spindle, be connected the top of bed ladder, fire ladder moves when setting up, rotate the lock handle 604 of locking mechanism 603 by hand, under the telescopic action of spring, open auxiliary support bar 601 and rotation makes itself and fire ladder be gusseted, terraced beam is worked the effect of aiding the strong, guarantee the stability of fire ladder lifting; The needs of cat ladder when setting up satisfy to move.
Locating rack is the positioner of fixing and locking fire ladder, is made up of the inserted-link type lock pin on preceding fixed mount, back lock bracket, pallet and the guide rail, slides and swings to prevent that fire ladder from scurrying in vehicle operating with before and after suddenly stopping in the process.Also be provided with lifting gear and personal protection pulley on the fire ladder main body.
The hanging fire ladder of car of the present utility model, can also connect a remote control injection apparatus at an end of fire ladder main body, mainly comprise water or the dual-purpose remotely-controlled cannon 14 of foam, remote controller and stube cable, battery box that is fixed on the remotely-controlled cannon holder 14 and the water band water cannon colligator that is located at fire ladder top composition.Can guarantee that fire ladder rises back remote control injection water or foam as required in the distance range of 150m.Can also be provided with arm of derrick, mainly by slotting formula column, rotary suspension arm, assembly pulley, hang lock, suspension hook and the hand power machine wheel is formed.Can guarantee fire ladder in maintenance with move when setting up from car and take off and reset, also can be used to hang and rise the foam solution bucket.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection domain of the present utility model.
Claims (5)
1, the hanging fire ladder of a kind of car mainly comprises the fire ladder main body and rises ladder and locking mechanism, pallet slew gear, fire ladder rail plate and fastening devices, adjustment location, inclination angle and coupling mechanism and terraced leg support, it is characterized in that,
Described fire ladder comprises 2-4 ladder successively, and each joint ladder includes terraced leg, loaded axle, carrying cover, directive wheel and stile, and this directive wheel moves back and forth in supporting guide;
Described ladder and the locking mechanism of rising comprises shell, drive unit and winding drum, and winding drum is arranged in the shell, and drive unit drives the winding drum rotation, and described winding drum is connected with ratchet brake self-locking device;
Described pallet slew gear is " T " font universal structure of roller bearings, comprises the terraced pull bar of lock, revolution pallet, support arm, rotary disk, supporting guide and roller, lock on the stile that terraced pull bar is arranged in terraced leg, and pull bar self-locking at one end;
Adjustment location, described inclination angle and coupling mechanism are mainly interconnected and are formed by nut, stop pin, connection axostylus axostyle, fixed mount, bearing holder (housing, cover), threaded rod, revolution connecting rod, regulating handle, pull bar, alignment pin, position and lock mechanism, regulating handle drives the threaded rod rotation, one end is fixed by stop pin, relative nut of threaded rod and fixing bearing holder (housing, cover), fixed mount rotation, make the fixed mount of an end, connect axostylus axostyle generation axially-movable, connect on the stile of axostylus axostyle connection fire ladder main body;
Described terraced leg support comprises support bar, rotary locking mechanism, locking mechanism maintainance set and the fixed mount that is provided with tooth bar, one locking mechanism maintainance set is set on the fixed mount of a U-shaped, fixing rotary locking mechanism on the locking mechanism maintainance set, rotary locking mechanism is an elastic locking mechanism, one end of rotary locking mechanism connects lock handle, and described supporting rod clamp is located in the elastic locking mechanism.
2, the hanging fire ladder of car as claimed in claim 1 is characterized in that, described ratchet brake self-locking device comprises two groups of interconnective ratchets, ratchet, ratchet extension spring, this ratchet and the coaxial setting of described winding drum.
3, the hanging fire ladder of car as claimed in claim 2 is characterized in that, the ratchet opener also is installed between described ratchet, ratchet.
4, the hanging fire ladder of car as claimed in claim 1 is characterized in that, at remote control injection apparatus of end connection of described fire ladder main body.
5, the hanging fire ladder of car as claimed in claim 1 is characterized in that, also is provided with lifting gear and personal protection pulley on described fire ladder main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201734031U CN201095955Y (en) | 2007-09-27 | 2007-09-27 | Vehicle-mounted fire-fighting ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201734031U CN201095955Y (en) | 2007-09-27 | 2007-09-27 | Vehicle-mounted fire-fighting ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201095955Y true CN201095955Y (en) | 2008-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201734031U Expired - Fee Related CN201095955Y (en) | 2007-09-27 | 2007-09-27 | Vehicle-mounted fire-fighting ladder |
Country Status (1)
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| CN (1) | CN201095955Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536104A (en) * | 2011-12-16 | 2012-07-04 | 长沙中联消防机械有限公司 | Aerial ladder device and vehicle |
| CN102561933A (en) * | 2011-12-16 | 2012-07-11 | 长沙中联消防机械有限公司 | Engineering machinery, scaling ladder and tail-end ladder frame of scaling ladder |
| CN102979449A (en) * | 2012-12-06 | 2013-03-20 | 长沙中联消防机械有限公司 | Scaling ladder mechanism and overhead working machine |
| CN103552509A (en) * | 2013-10-28 | 2014-02-05 | 徐州海伦哲专用车辆股份有限公司 | Vehicle-mounted insulating ladder device |
| CN108211182A (en) * | 2017-12-30 | 2018-06-29 | 佛山尉达科技有限公司 | Fire fighting truck |
| WO2020008472A1 (en) * | 2018-07-04 | 2020-01-09 | Faizal Ebrahim Khan | The present invention relates to ladder gantry system more particularly a fire fighting aluminum ladder gantry system with automotive functions |
-
2007
- 2007-09-27 CN CNU2007201734031U patent/CN201095955Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536104A (en) * | 2011-12-16 | 2012-07-04 | 长沙中联消防机械有限公司 | Aerial ladder device and vehicle |
| CN102561933A (en) * | 2011-12-16 | 2012-07-11 | 长沙中联消防机械有限公司 | Engineering machinery, scaling ladder and tail-end ladder frame of scaling ladder |
| CN102561933B (en) * | 2011-12-16 | 2015-03-04 | 长沙中联消防机械有限公司 | Engineering machinery, scaling ladder and tail-end ladder frame of scaling ladder |
| CN102979449A (en) * | 2012-12-06 | 2013-03-20 | 长沙中联消防机械有限公司 | Scaling ladder mechanism and overhead working machine |
| CN103552509A (en) * | 2013-10-28 | 2014-02-05 | 徐州海伦哲专用车辆股份有限公司 | Vehicle-mounted insulating ladder device |
| CN103552509B (en) * | 2013-10-28 | 2015-08-19 | 徐州海伦哲专用车辆股份有限公司 | In-vehicle insulating ladder device |
| CN108211182A (en) * | 2017-12-30 | 2018-06-29 | 佛山尉达科技有限公司 | Fire fighting truck |
| WO2020008472A1 (en) * | 2018-07-04 | 2020-01-09 | Faizal Ebrahim Khan | The present invention relates to ladder gantry system more particularly a fire fighting aluminum ladder gantry system with automotive functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20080806 Termination date: 20120927 |