CN206125276U - Running gear and have carrier of this mechanism - Google Patents

Abstract

The utility model discloses a running gear and have carrier of this mechanism, running gear includes: a front wheel, its axial sets up wind the frame bottom vertical axle rotates, a transaxle, it sets up on the frame, be connected with drive arrangement, differential mechanism is equipped with in drive inner bridge portion, two rear wheels, it sets up the frame bottom, with the transaxle is connected, the carrier still includes: the frame, running gear, it sets up on the frame, be used for making the carrier walking, steering mechanism, it sets up on the frame, be used for making the carrier turns to. Thus, rear wheel freedom and flexibility differential rotates convenient the turn about realizing through the differential mechanism in the transaxle among the running gear, and the turning radius of tricycle mechanism is little, and convenient to use is reliable, the cooperation differential mechanism of tricycle mechanism can realize the turn that the radius is littleer, and freedom and flexibility.

Description

A kind of walking mechanism and the carrier with the mechanism

Technical field

The utility model is related to fire fighting truck technical field, and in particular to a kind of walking mechanism and the carrying with the mechanism Car.

Background technology

Fire fighting truck needs first to drive near ignition point when fire-fighting work is carried out, then by the water transported on fire fighting truck Band and water pump etc. are unloaded, and are transported near water source, then lay water band, and opening water pump carries out fire-fighting work.

Currently in order to convenient transport water band and water pump near water source, generally water band and water pump are transported using carrier In the past, it is convenient so to transport, and easily lays water band.

But current carrier radius of turn very big and underaction, to fire-fighting work very big inconvenience is brought.

In view of drawbacks described above, the utility model creator passes through prolonged research and practice obtains a kind of walking finally Mechanism and the carrier with the mechanism.

Utility model content

To solve above-mentioned technological deficiency, the technical solution adopted in the utility model is to provide a kind of walking mechanism first, It includes：

One front-wheel, it is axially disposed within the bottom of frame, rotates around the vertical axes；

One drive axle, it is arranged on the vehicle frame, is connected with driving means, and the drive axle inside is equipped with differential mechanism；

Two trailing wheels, it is arranged on the bottom of frame, is connected with the drive axle.

Preferably, front-wheel/the trailing wheel is rubber tyre.

Secondly a kind of carrier with walking mechanism described above is provided, it also includes：

Vehicle frame,

The walking mechanism, it is arranged on the vehicle frame, for making the carrier walk；

Steering mechanism, it is arranged on the vehicle frame, for turning to the carrier.

Preferably, the steering mechanism includes：

Front-wheel, fixes thereon a vertical axes；

Fixed block, it is fixed on the vehicle frame, and bottom has an axis hole, and the axis hole turns with vertical axes cooperation It is dynamic；

The fixed block forward extends out a projecting block, and a carrying handlebar is vertically fixed on the top of the projecting block.

Preferably, the carrying handlebar includes：

Handle case, it is connected with the top of the projecting block by bearing pin, around bearing pin rotation；

Switch, it is fixed in the handle case, and one end of the bearing pin is provided with switch opening；

Pressure ram, its one end fixes a pulley, and the other end is arranged in the switch opening；

The top top of the projecting block is that, with raised convex structure, the structure offsets with the pulley.

Preferably, the extended line of the pressure ram is by the center of circle with raised convex structure

Preferably, the carrying handlebar also includes a gas spring, the gas spring one end passes through pin with the handle case Axle connects, and the other end is connected with the projecting block axle.

Preferably, the handle case includes upper handle case and lower handle shell, the lower handle shell upper end is square opening, it is described on Handle case lower end is hollow square column, and the square column inserts the square opening.

Preferably, the gas spring is connected with the upper handle case by bearing pin.

Preferably, the square column side of the upper handle case has groove, the size of the groove is corresponding with the gas spring.

Compared with the prior art the beneficial effects of the utility model are：By the difference in drive axle in the walking mechanism Fast device realizes that left and right trailing wheel freedom and flexibility differential is rotated, convenient to turn；And the radius of turn of three-wheel mechanism is little, it is easy to use can Lean on；Three-wheel mechanism coordinates differential mechanism to realize the less turning of radius, and freedom and flexibility.

Description of the drawings

Technical scheme in order to be illustrated more clearly that each embodiment of the utility model, below will be to institute in embodiment description The accompanying drawing that needs are used is briefly described.

Fig. 1 is the structure chart of the utility model lock；

Fig. 2 is the structure chart of utility model works platform；

Fig. 3 is the structure chart of the utility model balladeur train；

Fig. 4 is the part-structure figure one of the utility model balladeur train；

Fig. 5 is the part-structure figure two of the utility model balladeur train；

Fig. 6 is the structure chart of the utility model retaining mechanism；

Fig. 7 is the structure chart of the utility model water tape drum；

Fig. 8 is the structure chart of the utility model vehicle frame；

The structure chart of Tu9Shi the utility model steering mechanism；

Figure 10 is the structure chart that the utility model carries handlebar；

Figure 11 is the structure chart of the utility model waterproof construction.

Specific embodiment

Below in conjunction with accompanying drawing, and technical characteristic and advantage of other above-mentioned to the utility model are described in more detail.

<Lock>

As shown in figure 1, a kind of lock, including：

Rotate closing piece 11, itself and first axial restraint, pivoting；

Latch hook 12, itself and second fixation, and there is inclined-plane near the side of the rotation closing piece 11, the latch hook 12 has There is a draw-in groove；

Closing piece spring 13, its one end is fixed on first, and the other end is connected with closing piece 11 is rotated so as to reset.

So, second to first it is mobile when, latch hook 12 to rotate closing piece 11 move；Latch hook 12 strikes rotation closing piece When 11, the inclined-plane of latch hook 12 is contacted with closing piece 11 is rotated, and because the inclined-plane of latch hook 12 has guide effect, rotates closing piece 11 along institute State inclined-plane rotation；When rotation closing piece 11 is turned at groove position, under the action of the spring, rotate closing piece 11 and snap in draw-in groove；This Sample rotates the position mutually locking of closing piece 11 and latch hook 12, so as to by be secured to first and second locking, prevent it Separate.(without lock, easy double swerve on balladeur train)

As such, it is possible to first is pinned with second, prevent its position from relative movement occurring, and scheme is simple, locking It is convenient.

Rotation closing piece 11 is L-shaped, middle turning point and first axial restraint, and two ends are from axial restraint to extension Stretch, wherein one end is fixedly connected with spring, the other end has a projection 14, in the feelings that the rotation closing piece 11 is locked with latch hook 12 Under condition, described raised 14 snap in the draw-in groove.

Lock also includes a closing piece bracing wire 15, and described one end of closing piece bracing wire 15 is fixed with the rotation closing piece 11, so, drawn The closing piece bracing wire 15 is moved, rotates can rotation lock block 11, so, if rotate closing piece 11 mutually interlocked with the position of latch hook 12 It is fixed, closing piece bracing wire 15 is now pulled, the part (raised 14) that rotation lock block 11 snaps in draw-in groove can be made to take off from the draw-in groove From so as to release the locking for rotating closing piece 11 and latch hook 12.

Closing piece bracing wire 15 is fixed on the same position for rotating closing piece 11 with closing piece spring 13, and the closing piece bracing wire 15 is penetrated In the closing piece spring 13, as such, it is possible to prevent spring from bending occurring in deformation process or lock is pulled after spring bending Block bracing wire 15 is corrected it, and resets that (spring may bend, one in deformation process so as to rotate closing piece 11 The power of resilience will reduce rapidly after denier bending, thus can resilience reset so as to closing piece 11 will be rotated).

Lock also includes a closing piece limited post 16, and the closing piece limited post 16 is fixed on first, enters to rotating closing piece Row is spacing, as such, it is possible to be defined to maximum position during rotation lock block reset, prevent rotational angle during because resetting excessive and Miss the chamfered portion of latch hook 12 so that locking cannot be successfully completed when next time is locked.

The one end of closing piece spring 13 is fixed on a block 17 of first, has through hole, the closing piece on the block 17 Bracing wire 15 passes through the through hole.As such, it is possible to motion (or flexible) direction of fixed closing piece bracing wire 15, so as to fixation

Described one end of closing piece bracing wire 15 is fixedly connected with closing piece 11 is rotated, and the other end is with leader's (being not drawn in figure) even Connect, so, the movement handle can drop the closing piece bracing wire 15, so that the rotation closing piece is rotated, and then release Latch hook 12 and the locking (locking of first and second) for rotating closing piece 11.

<Workbench>

As shown in Fig. 2 a kind of workbench, including：

Supporting plate 21, for support carrier；

Fixed mount 22, is fixed on the side of supporting plate 21, and is connected with external device (ED), the supporting plate 21 is transported with external device (ED) It is dynamic；

Middle part is the vehicle body position pair of trapezoidal raised 23, described trapezoidal raised 23 and the carrier on the supporting plate 21 Should.

So, described trapezoidal raised 23 the front-wheel 71, trailing wheel of carrier is stuck in into trapezoidal raised 23 both sides, so as to remove Fortune car be fixed on supporting plate 21 so as to will not because jolt wait landing.(under normal circumstances, carrier may during transport Can slide from supporting plate 21 because rocking, cause to damage, hinder rescue.)

Division board 24 is additionally provided with the supporting plate 21, the division board 24 is fixed along carrier placement direction, by supporting plate 21 are divided into multiple grooves, so can enter row constraint to the direction of motion of the front-wheel 71, trailing wheel of carrier, and carrier is in supporting plate 21 During upper walking, front-wheel 71, trailing wheel is constrained in is walked in the groove, and row constraint not only can be entered to its direction of motion, may be used also Limited with the set-point to carrier, so as not to carrier place it is excessively outer or by inner；Meanwhile, the division board 24 is also Can prevent the carrier from lateral shift occurring when supporting plate 21 is moved, so that dropping.

The width of the groove corresponding with the front-wheel 71, trailing wheel of carrier is slightly wider than the width of front-wheel 71, trailing wheel, so, It is strong to the restraining force of front-wheel 71, trailing wheel, can both prevent front-wheel 71, trailing wheel from the division board 24 of both sides is crossed when walking in groove, Can also be when supporting plate 21 be moved, clamping front-wheel 71, trailing wheel prevents carrier from shaking because of skew.

The end for constituting the same side of two division boards 24 of same groove bends to the outside of groove, is so easy to carrier Front-wheel 71 or trailing wheel enter the groove, while also having markd effect, the front-wheel 71, trailing wheel for preventing carrier enters non-corresponding Groove in.(also can be a groove, if not identifying due to the effect of division board 24 between two adjacent slots, it is likely that Front-wheel 71, trailing wheel can be directed at the groove, position can be caused to place mistake after so entering, either be reapposed or place and be wrong By mistake, unnecessary loss can all be brought.)

The end for constituting the two ends of two division boards 24 of same groove bends to the outside of groove, and so, carrier can be with Supporting plate 21 is entered from former and later two directions, it is easy to use.

<Balladeur train>

As Fig. 3 combines a kind of balladeur train shown in Fig. 4, Fig. 5, it is Multi-functional carriage, and it includes：

Horizontal slide rail 31, it is fixed in external device (ED)；

Outer mast 32, it is combined with horizontal slide rail 31, and is slided along the level of the horizontal slide rail 31；

Inner upright mounting 33, it is combined with outer mast 32, and is vertically slided along the outer mast 32；

Workbench, it is combined with inner upright mounting 33, for load bearing equipment.

So, the balladeur train can in the horizontal direction with vertical direction on slide, need launch when, by the water of outer mast 32 After smooth dynamic expansion, then launched by the vertical sliding motion of inner upright mounting 33, so as to launch from inside to outside from the external device (ED)；Need to shrink During in external device (ED), after first passing through the contraction of the vertical sliding motion of inner upright mounting 33, then shunk by the slip of the level of outer mast 32, so as to contract Enter in the external device (ED).

So, storage is not only convenient for, and easily can be unloaded the equipment carried on workbench (water band or water pump) Under, bring great convenience to fire-fighting work；Meanwhile, it is easy to carrier conveniently upper and lower fire fighting truck inner space.

The balladeur train also includes hoist cylinder 34, and the one end of the hoist cylinder 34 is fixed on outer mast 32, and the other end is solid It is scheduled on inner upright mounting 33, for driving inner upright mounting 33 to rise on outer mast 32.So, the hoist cylinder drives inner upright mounting 33 When rising on outer mast 32, external force (external motor etc.) is needed to provide driving force, but the inner upright mounting 33 is in outer mast When declining on 32, it is not necessary to which hoist cylinder provides downward driving force, the inner upright mounting 33 can decline in the presence of deadweight. So, the energy is on the one hand saved；On the other hand, once the external force for providing driving force breaks down, the inner upright mounting still may be used To lower from outer mast 32 in the presence of deadweight, normal work will not be stopped over.

The fixed mount 22 of the workbench is combined with the inner upright mounting 33, and along the vertical sliding motion of the inner upright mounting 33.

Sprocket wheel 39 is fixed with the inner upright mounting 33, the chain one end through the sprocket wheel 39 is fixed on the fixed mount 22 On, the other end is fixed on the outer mast 32, and so, inner upright mounting 33 can pass through workbench described in chain-driving when lifting (fixed mount 22) is lifted.

Cross bar 30 is fixed with the outer mast 32, the chain is fixed on the cross bar 30, and the cross bar 30 Less than the position of the sprocket wheel 39, so, inner upright mounting 33 can pass through workbench (fixed mount described in chain-driving when lifting for position 22) lift, and lifting when the workbench (fixed mount 22) while lifting relative to the inner upright mounting 33；So, the work The distance for making the actual lifting of platform (fixed mount 22) is the twice of the lifting distance of the inner upright mounting 33, so as to shorten shrink after entirely slide Frame height (balladeur train it is highly identical, but so shrink after balladeur train height be under normal circumstances two/mono-), So as to save external device (ED) (fire fighting truck) receiving space.

The outer mast 32 includes inner side outer mast 321 and outside outer mast 322, and the inner side outer mast 321 is arranged on The inner side of the horizontal slide rail 31, and combined with the horizontal slide rail 31, one end level along the horizontal slide rail 31 is slided；Institute The outside that outside outer mast 322 is arranged on the horizontal slide rail 31 is stated, the horizontal slide rail 31 is combined, along the horizontal slide rail 31 Other end level slide；As such, it is possible to arrange workbench in the both sides of the balladeur train.

Meanwhile, the quantity of the inner upright mounting 33 and the workbench is also two, respectively with the inner side outer mast 321 and The outside correspondence of outer mast 322.

The hoist cylinder 34 is by an oil pipe (being not drawn in figure) delivery hydraulic pressure oil.

The balladeur train also includes an oil tube bracket 35, and the oil tube bracket 35 is used to support the oil pipe, and it is fixed on institute The side of horizontal slide rail 31 is stated, vertical groove 36 is fixed with thereon.

The outer mast 32 is provided with vertical slots 37, the vertical slots 37 and institute with the corresponding side of the oil tube bracket 35 State the position of vertical groove 36 correspondence, notch is relative, so, after the level of the outer mast 32 is shunk, the vertical slots 37 with it is described Vertical groove 36 offsets, and two relative notches are combined, and are formed hollow.

The oil pipe is arranged on the top of the vertical groove 36 of the oil tube bracket 35 and the top of the vertical slots 37, this Sample, after the level of the outer mast 32 is shunk, is erected at sagging in the middle of the oil pipe on the vertical groove 36 and the top of vertical slots 37；Institute State outer mast 32 to be retracted to after terminal, doubling in the middle of the oil pipe, the hollow space that two notches are formed；This way it is possible to avoid Oil pipe is extruded after contraction, causes oil leak equivalent damage.

Oil pipe set (being not drawn in figure) is additionally provided with the balladeur train, the oil pipe covers one end and is fixed on the vertical groove 36 top, one end is fixed on the top of the vertical slots 37, and the oil pipe is penetrated inside it；So can be to the position of oil pipe It is fixed, while protecting oil pipe from outside extruding etc..

The oil pipe set is made up of multiple hard rings, and so, the oil pipe is enclosed within fold position and can form arcuation transition, so as to Prevent oil pipe from forming folding line (folding line is easily damaged, oil leak) in fold position, so as to improve the service life of oil pipe.

On the oil tube bracket 35, the quantity of the vertical groove 36 is two, respectively with the outside outer mast 322 Vertical slots 37, the correspondence of vertical slots 37 of the inner side outer mast 321.

The balladeur train also includes lock described above, wherein the external device (ED) (fire fighting truck) is described first, institute Outer mast 32 is stated for described second, such that it is able to outer mast 32 is locked when stretching to ad-hoc location with the external device (ED) It is fixed.So, the automatic locking after turnover in place of outer mast 32, prevents level in use from sliding.

The lock is at least two, the latch hook 12 of the lock respectively with outside outer mast 322, inner side outer mast 321 It is fixed, outside outer mast 322, inner side outer mast 321 are locked respectively with external device (ED) (fire fighting truck).

The narrow boards 38 of multiple levels, the narrow boards are also arranged at intervals between the horizontal slide rail 31 and the external device (ED) 38 are fixed in the external device (ED), and the horizontal slide rail 31 is fixed on narrow boards 38, so as to eliminate in external device (ED) and level Slide rail 31 bearings out-of-flatness and cause possible damage (bearing's out-of-flatness, then horizontal slide rail 31 combined with external device (ED) Built on the sand, the lug boss or in out-of-flatness can hinder the level of outer mast 32 to slide).

The rotation closing piece 11, closing piece spring 13, closing piece limited post 16, block 17 are fixed on the narrow boards 38.

The latch hook 12 fixed with the outside outer mast 322 is the middle projection with U-type groove, and the projection is arranged In the side of the outside outer mast 322, its both sides is inclined-plane, and middle U-type groove is the draw-in groove, its corresponding rotation closing piece 11 to be arranged on the diverse location with the homonymy of outside outer mast 322, and so, the outside outer mast 322 moves to first When putting, the outside outer mast 322 is retracted at utmost；It is described outer when the outside outer mast 322 moves to the second place Side outer mast 322 is deployed into maximum position.

The first position is the middle part of the horizontal slide rail 31, and the second position is the horizontal slide rail 31 End.

The opposite side of the outside outer mast 322 is also equipped with the middle projection with U-type groove, and the outside outer mast The 322 raised position correspondences for arranging, its corresponding position for rotating closing piece 11 also corresponds to, as such, it is possible to outside both sides are to outside Door frame 322 is locked, and locking effect is more preferable.

Meanwhile, the latch hook 12 is set to into the middle projection with U-type groove, so, corresponding outside outer mast 322 is received Contract/be deployed into after being at utmost locked, can be by pull handle, contact locking, so that the outside outer mast 322 can Further to shrink/launch, consequently facilitating dismounting or further contraction.

The other end of the corresponding closing piece bracing wire 15 of latch hook 12 arranged on the outside outer mast 322 is connected to same leader On, can so pass through handle to the locking of outside outer mast 322/unlocking carries out operation simultaneously, easy to operate, simply.

Connection cross bar is fixed with the inner side outer mast 321, the latch hook 12 is fixed in the side of the connection cross bar, from And lock the inner side outer mast 321.

The opposite side of the connection cross bar also fixes the latch hook 12, so as to by the expansion/receipts of the inner side outer mast 321 Condense and put locking.

The other end of the corresponding closing piece bracing wire 15 of latch hook 12 arranged on the connection cross bar is connected on same leader, this Sample can pass through handle to the locking of inner side outer mast 321/unlocking carries out operation simultaneously, easy to operate, simply.

The latch hook 12 is fixed in the both sides of the connection cross bar, and so, the inner side outer mast 321 is locked in expansion/receipts Condense and postpone, can be by pull handle, contact locking, so that the inner side outer mast 321 can reversely shrink/launch.

It is described rotate closing piece 11 projection to it is described connection cross bar it is spacing, prevent its inner side outer mast 321 be locked in expansion/ After punctured position, further shrink/launch, such that it is able to avoid the landing of inner side outer mast 321.

<The improvement of balladeur train>

The horizontal slide rail 31 is divided into transverse concave groove, the upper wall of the transverse concave groove with the slide contact part of the outer mast 32 With the pressure sensor of equidistant pressure sensor, upper wall and lower wall correspondence position is installed in horizontal level on lower wall Projection overlaps (i.e. the pressure sensor of correspondence position is located on same vertical curve).

So, when outer mast 32 is passed through, the pressure sensor can produce corresponding pressure, so that it is determined that outer mast 32 The distance of insertion.

Multiple rollers are provided with outer mast 32, the outer mast 32 passes through horizontal stroke of the roller in the horizontal slide rail 31 Slide into groove.

Multiple pressure sensors are connected with a controller, and the controller reads the pressure data of pressure sensor, and counts Calculate the distance that outer mast 32 enters horizontal slide rail 31.

Outer mast 32 enters the computing formula of the distance of horizontal slide rail 31：

In formula, determined by following formula：

It is distance of the outer mast 32 into horizontal slide rail 31 in formula, is to pass to middle pressure from the top of horizontal slide rail 31 The sequence number of sensor, is the pressure sensor of upper wall, is the pressure sensor of lower wall, is that the pressure of spaced set is passed The distance between sensor, is distance of the 1st pressure sensor apart from the top of horizontal slide rail 31, is the top of outer mast 32 to centre The 1st roller apart from the top of outer mast 32 distance, be the corresponding judgment value of the pressure sensor.

Generally, if measured into the distance of horizontal slide rail 31 to outer mast 32 by pressure sensor Words, not only need to count the data of each pressure sensor, in addition it is also necessary to contrast data two-by-two, such one Come, the time of consuming and resource are a lot；In addition, outer mast 32 is when horizontal slide rail 31 are slipped into, and when just slipping into, outer mast 32 top is resisted against the upper wall of the transverse concave groove of horizontal slide rail 31, and after a segment distance is slipped into, the top of outer mast 32 is resisted against The lower wall of the transverse concave groove of horizontal slide rail 31, so, the upper wall and lower wall stress of the transverse concave groove of horizontal slide rail 31 is indefinite, it is difficult to Determining the top of outer mast 32 can be resisted against which part of the transverse concave groove, and this just brings very big to range measurement work Puzzlement.

Its concrete thought is：By the pressure sensor of same sequence number with the adjacent difference for needing pressure sensor divided by difference The absolute value of value, by difference be converted on the occasion of and negative value；Again by Jia one after will be on the occasion of judgment value be converted into, if now divided by two The pressure value of the pressure sensor of same sequence number is higher than adjacent pressure value sum, then its judgment value is 1, if the pressure of same sequence number The pressure value of sensor is less than adjacent pressure value sum, then its judgment value is 0；Then using the judgment value as the pressure for corresponding to sequence number , to the factor of the top distance of horizontal slide rail 31, so as to eliminate the pressure sensor that judgment value is 0, (i.e. roller is not at this for force snesor Pressure sensor at position) corresponding distance, each roller is obtained to the distance on the top of horizontal slide rail 31；In remaining distance Middle to select that maximum, it is the distance that outer mast 32 enters horizontal slide rail 31.

Have the beneficial effect that：By the way that the upper wall at same position is added with the pressure value of the pressure sensor of lower wall, eliminate The problem that roller does not know to be brought to measurement against upper wall or lower wall；By by the pressure sensor and adjacent bit at same position The pressure of the pressure sensor at the place of putting is processed to eliminate the error number that individual pressure sensors failure or external interference are brought According to；By the way that the pressure difference value of the pressure sensor at same position and the pressure sensor of adjacent position is converted to into judgement It is worth to eliminate pressure sensor of the roller not at the position, so draws judged result rapidly by way of calculating, not only Avoid it is numerous and diverse compare one by one, improve judgement speed, and simply, it is convenient；By selecting in the distance of each roller The distance of horizontal slide rail 31 is entered after that maximum process as outer mast 32, the mechanical problem of pressure sensor can be eliminated The error for causing.As such, it is possible to actual range is directly obtained by computing formula, and it is simple and convenient, calculate quick, and take system Resource is few.

<Retaining mechanism>

As shown in fig. 6, a kind of retaining mechanism, including：

43 set 41 of pilot pin, it is arranged on the first device, which is provided with bolt throughhole；

Hook 42, it is arranged in second device, for clamping；

Pilot pin 43, its one end is slidably fitted in the bolt throughhole, the other end and it is described hook 42 clampings, the positioning The middle part of bolt 43 is provided with pilot pin handle 44；

43 set of 41 outer surface of the pilot pin is provided with the chute 45 of axial direction, and the one end of the chute 45 is along the pilot pin Radially extend for 43 set 41, the pilot pin handle 44 is slidably fitted in the chute 45；

Collision block 46, it is arranged in second device, for clashing into the pilot pin handle 44.

So, when second device is near the first device, hook 42 is simultaneously mobile with collision block 46, and collision block 46 clashes into position In the pilot pin handle 44 of the longitudinal end on the top of the chute 45；Pilot pin handle 44 is in the presence of shock along 43 sets of pilot pin The axial component of 41 radial rotatings to the chute 45, then partly slides into vertically the axial end of the bottom of the chute 45； Now pilot pin 43 is moved down simultaneously, and its cooperation is slided in one end of bolt throughhole in bolt throughhole, and other end insertion second is filled In the hook 42 put, with the second 42 clampings of hook.

So, it is only necessary to promote second device, you can with by the chain reaction of the retaining mechanism by second device and the One device is connected and fixed, and locks convenient, fast and simple structure.

Need release clamping when, it is only necessary to the handle is slided axially upward, you can by the pilot pin 43 with The hook 42 is separated, and is unlocked, convenient for unlocking；Pilot pin handle 44 after separation is placed on into the top of the chute 45 Longitudinal end, you can be ready to complete to lock out action, prepares convenient, fast.

During the device second device is connected and fixed by the movement of second device itself；Fixed simple, releasing It is convenient, and can recycle, it is convenient and swift.

The retaining mechanism also includes a spring (being not drawn in figure), and the spring is set on the pilot pin 43, one End be resisted against in the bolt throughhole, the other end against the pilot pin handle 44, as such, it is possible in the footpath of pilot pin handle 44 To after the axial component for turning to the chute 45, by the elastic force of spring by pilot pin handle 44 and pilot pin 43 to axial end Top, so as to pilot pin 43 to be fixed on the fastness that pilot pin 43 and 42 clampings of hook are improved on hook 42.

The bolt throughhole is up-small and down-big ladder hole (being not drawn in figure), and the upper diameter of bolt throughhole is straight less than bottom Footpath, the top of bolt throughhole penetrates for the pilot pin 43, and the bottom of bolt throughhole penetrates for the spring, and the spring is resisted against At the step of the ladder hole, so it is easy to spring against and easy to disassemble.

The collision block 46 is vertically fixed in the second device, and so, (thin plate) can improve the fault-tolerant of retaining mechanism Property, as long as the position of pilot pin handle 44 is in the range of the collision block 46 being vertically arranged.

The collision block 46 is thin plate, so can mitigate weight with material-saving.

<Water tape drum>

With reference to shown in Fig. 7, a kind of water tape drum, it includes：

Box body 51, the lateral opening of the box body 51, and bottom is provided with least one cutting plate, by the bottom of the box body 51 It is divided into multiple grooves；

Water band receives drawer 52, and it is arranged in the groove, is slidably matched with groove, for receiving water band.

As such, it is possible to water band storage drawer 52 is slipped into or extracted out by the side for passing through the opening of box body 51, box body is conveniently replaceable Water band storage drawer 52 in 51；Meanwhile, groove is defined to the direction of motion that water band receives drawer 52, anti-waterstop storage drawer 52 side Move.

The length direction of groove is identical with the opening direction of box body 51, so directly water band can be received into drawer 52 from box body 51 In slide in or out.

The width that the width of groove receives drawer 52 with water band is identical, can so prevent the water band storage drawer 52 from rocking, and The quantity that the water band accommodated in box body 51 receives drawer 52 can be increased.

The width of the water band storage drawer 52 is identical with water bandwidth, is so easy to receive water band (the water band storage mistake of drawer 52 If width, receive water band when above water band easily topple over).

Water band storage drawer 52 bottom is provided with movable pulley 53, so, is easy to move the water band storage drawer 52.

The water tape drum also includes the retaining mechanism, and water band storage drawer 52 is fixed on into the box body 51 It is interior.

Retaining mechanism as described above, the box body 51 is the first device, and water band storage drawer 52 is described the Two devices.

Wherein, the pilot pin is arranged on outside contrary with opening direction on the box body 51 for 43 set 41.

The collision block 46 is arranged on the water band storage drawer 52 with the hook 42.

So water band storage drawer 52 is pushed voluntarily be pinned after water tape drum prevents from skidding off.

The side contrary with opening direction is provided with the first opening, first opening and the water band on the box body 51 The position of collision block 46 correspondence on storage drawer 52, is easy to the collision block 46 to pass from the first opening.

The side contrary with opening direction is provided with the second opening, second opening and the water band on the box body 51 The position of hook 42 correspondence on storage drawer 52, is easy to the hook 42 to pass from the second opening.

Drawer handle 54 is also set up on the water band storage drawer 52, is easy to grip, to move water band storage drawer 52.

The side contrary with opening direction is provided with the 3rd opening, the 3rd opening and the water band on the box body 51 The position of drawer handle 54 correspondence on storage drawer 52, is easy to the drawer handle 54 to pass from the 3rd opening.

The hook 42 is the groove of opening upwards, is so easy to pilot pin 43 to insert, and clamping is firm.

The position of first opening and the position phase of the pilot pin handle 44 of the longitudinal end positioned at the top of the chute 45 Together, so, the impingement position of collision block 46 is carried out spacing, prevents collision block 46 from deviateing with pilot pin handle 44.

Positioned at the lower section of 43 sets 41 of the pilot pin, so, the extended position to linking up with 42 is limited second opening Position so that the lower end of pilot pin 43 and 42 clampings of hook.

After water band storage drawer 52 is pushed toward water tape drum the inside, collision block 46 touches pilot pin handle 44, then pilot pin 43 glide along the axial direction of chute 45, and are inserted directly into hook 42, and pinning water band storage drawer 52 fixes it.

When using water band packed water band, the upper and lower form of water band put in order can will be dried in advance and fold and be put into Water band receives drawer 52, then water band storage drawer 52 is loaded one by one into water tape drum；Load with rear catch automatic locking, it is to avoid water band is received Drawer 52 of receiving slides in use；All water band storage drawers 52 take the lead the water in each water band storage drawer 52 after being fitted into Tail is connected, and such first water band storage drawer 52 pulls out head water band and connects water pump, and mobile water tape drum, water band is pulled out and spread automatically If completing.

<The improvement of water tape drum>

Generally, fireman needs for water band storage drawer 52 to load pull-out when using water tape drum, but in Jiang Shui When band storage drawer 52 loads or pulls out, need to confirm whether water band storage drawer 52 is filled, so, it is necessary to first water band is received into drawer 52 pull out from water tape drum, again water band are received into drawer 52 after checking and are fitted in water tape drum, occur in routine duties if checked, , if in task or putting out a fire live, the inspection that water band receives drawer 52 can will significantly be stalled for time with fine inspection, Very big puzzlement is brought to work.

Multiple pressure sensors are provided with each groove of the water tape drum bottom, pressure of the drawer 52 to groove is received to water band Measure；The pressure sensor is connected with a processor, and the processor receives the pressure value of the pressure sensor, And calculate the real-time space hold ratio that the water band receives drawer 52.

The processor display external with is connected, for showing that the water band receives the space hold ratio of drawer 52 Rate.

As such, it is possible to the space hold ratio that water outlet band receives drawer 52 is obtained to the pressure of water tape drum by receiving drawer 52 to water band Rate, and then can be visually indicated to whether the observation water band storage drawer 52 such as fireman is filled, so that fire-fighting work It is smoothed out, and improves the speed of water band storage.

The computing formula of the real-time space hold ratio is：

Wherein, it is the real-time space hold ratio of water band storage drawer 52, is the initial sky of the water band storage drawer 52 before calculating Between take ratio, be water band receive drawer 52 real-time weight, be calculate before water band storage the weight of drawer 52, be storage water band kind Class, wherein wet water band is 1, solid carbon dioxide band is 0, is weight ratio of same water band when being wet water band and solid carbon dioxide band, is that the water band is received The gross weight of the solid carbon dioxide band that drawer 52 of receiving can be accommodated.

In above-mentioned computing formula, the real-time weight of water band storage drawer 52 is determined by following formula：

Wherein, it is the sequence number of pressure sensor, is the sum of pressure sensor, is the pressure value of the pressure sensor, It is the relative value of the pressure sensor for pressure value of the pressure sensor when water band storage drawer 52 is vacant, is The average relative value of pressure sensor, is the decision content of the pressure sensor, is the conversion factor of weight and pressure value.

Conversion factor determines that specific measuring method can be that the object of known weight is placed on into pressure according to actual measurement On force snesor, the pressure value of pressure sensor is read, weight is conversion factor with the ratio of pressure value, ignoring other interference In the case of factor, conversion factor is the inverse of gravity acceleration g.

Basic ideas are：Using the pressure value of pressure sensor divided by it is vacant when pressure value as relative value；Then calculate The mean value of relative value；Relative value is deducted by 1.2 times of mean value and divided by its absolute value, plus one divided by being judged after two Value, now, relative value is 1 less than the decision content of the pressure sensor of 1.2 times of mean value, and relative value is more than 1.2 times of mean value The decision content of pressure sensor is 0；By decision content and the product accumulation of pressure value, the pressure value that decision content is 0 is eliminated, while will One subtract decision content and mean value and it is vacant when pressure value product accumulation, eliminate the pressure value that decision content is 1, two are added up it It is real-time weight with being multiplied by after conversion factor；In real time weight deducts the weight before calculating, then divided by the total of dry and wet water band Weight, plus the space hold ratio before calculating, obtains real-time space hold ratio.

Generally, the flatness in the groove of water tape drum bottom is not high, and the bottom of water band storage drawer 52 is additionally provided with rolling Wheel, the differing pressure for measuring of pressure sensor for so allowing for being arranged in groove is very big, once certain or certain several pressure Sensor failure, then cannot have big difference by the pressure that pressure sensor is measured with the pressure value of other pressure sensors To judge, so, the measurement that the weight of drawer 52 is received to water band is difficult to realize.

In addition, the water band of the water band storage storage of drawer 52 is probably solid carbon dioxide band, it is also possible to wet water band, same volume, do The weight of water band and wet water band differs greatly, thus, it may be difficult to determine the space occupancy rate of water band according to weight.

Have the beneficial effect that：By using the pressure value of pressure sensor divided by it is vacant when pressure value as relative value, so as to Eliminate the pressure value that different pressure sensors measure to have big difference the impact that causes of judge exceptional value；By asking relative value Mean value, and the certain multiple of mean value is deducted into relative value and divided by absolute value, relative value is converted to into decision content, will be It is no to be converted into the 1 and 0 of decision content in the certain multiple interval of mean value；By decision content and the product of pressure value, elimination is sentenced Definite value is the pressure value of 0 (not in the certain multiple of mean value), by subtracting the product of decision content with one and adding up, by what is eliminated Decision content is that the right value of 0 pressure value (these are exceptional value) adds up, and is so obtained the weight of supposition, so as to try to achieve reality Weight；By the weight that will increase divided by dry/wet water band gross weight, so as to eliminate the weight difference of solid carbon dioxide band and wet water band to The impact (value of M is determined by the species of the water band being put into) that measurement brings；Computing formula is simple, convenient, calculate it is quick and Occupying system resources are few.

<Carrier>

A kind of carrier, it includes：

Vehicle frame,

Walking mechanism, it is arranged on the vehicle frame, for making the carrier walk；

Steering mechanism, it is arranged on the vehicle frame, for turning to the carrier.

So, carrier can transport Flexible water pipe, water pump and other items, and can as needed walk and turn to.

<Vehicle frame>

As shown in figure 8, the vehicle frame includes：

Two girders 61, it be arranged in parallel；

At least two crossbeams 62, it is arranged between the girder 61 and fixes with the girder 61；

One platform 63, it is fixed on the girder 61 and the crossbeam 62；

The girder 61 and the crossbeam 62 are Hollow cuboids.

So, whole vehicle frame can both meet the rigid requirements of vehicle frame, and complete vehicle weight is effectively reduced again, and two crossbeams can To ensure the structural of vehicle frame entirety.

With fluted 64, the girder 61 and the crossbeam 62 are close in the bottom of the groove 64 to the middle part of the platform 63, this Sample is easy to support the platform 63.

The vehicle frame also includes montant 65, and the one end of the montant 65 is fixed on girder 61, and the other end props up the platform 63 front ends, as such, it is possible to reserve the space of assembling front-wheel 71, and are easy to front-wheel 71 to turn.

The groove 64 is so easy to mitigate weight near the side part hollow out of the front end of the platform 63, and can accommodate Front-wheel 71.

The montant 65 is Hollow cuboids, is so easy to mitigate weight.

Against the girder 61, top is fixed by being vertically arranged metallic plate with the rear end of the platform 63 for the side of the trailing wheel. So combine and consolidate and can mitigate weight.

The platform 63 is aluminium alloy plate, so, on the one hand can meet the rigid requirements of vehicle frame, on the other hand effectively Reduce complete vehicle weight.

The platform 63 is aluminum alloy checkered plate, and can so improve the steadiness of the article of placement (has frictional force, prevent Slide).

The vehicle frame is designed using tower structure, and adopts aluminum alloy checkered plate, and structure reliability, weight is light.

<The improvement of vehicle frame>

The platform 63 with the equipment such as water tape drum or water pumper of carrying is provided with the vehicle frame.

Generally, fireman needs to confirm whether water tape drum is filled, so, it is necessary to first when using water tape drum Water band storage drawer 52 is pulled out from water tape drum, again water band drawer 52 is received into after checking and is fitted in water tape drum, while also to check Whether the quantity of water band storage drawer 52 enough, occurs in routine duties if checked in water tape drum, can be with fine inspection, such as Fruit is in task or fire fighting is live, and the inspection to water tape drum will stall for time significantly, and to work very big puzzlement is brought.

Multiple pressure sensors are provided with the platform 63 that the water tape drum is accommodated on the vehicle frame, to water tape drum to platform 63 pressure is measured；The pressure sensor is connected with a computing device, and the computing device receives the pressure and passes The pressure value of sensor, and calculate the real-time space hold ratio of the water tape drum.

The computing device display external with is connected, for showing the space hold ratio of the water tape drum.

As such, it is possible to the space hold ratio by obtaining water outlet tape drum to the pressure of platform 63 to water tape drum, and then can be with It is visually indicated to whether the observation water tape drum such as fireman is filled, and without the need for receiving the space hold ratio of drawer 52 to the water band in it Rate is measured or calculated, so that fire-fighting work is smoothed out, and improves the speed of water band storage.

The computing formula of the described real-time space hold ratio of water tape drum is：

Wherein, it is the real-time space hold ratio of water tape drum, is the initial space occupancy ratio of the water tape drum before calculating, is The real-time weight of water tape drum, is the water tape drum weight before calculating, and is the water band species of storage, wherein wet water band is 1, solid carbon dioxide band is 0, it is weight ratio of same water band when being wet water band and solid carbon dioxide band, it is the gross weight of the solid carbon dioxide band that the water tape drum can be accommodated.

In above-mentioned computing formula, the real-time weight of water tape drum is determined by following formula：

Wherein, it is the sequence number of pressure sensor, is the sum of pressure sensor, is the pressure value of the pressure sensor, It is the relative value of the pressure sensor for pressure value of the pressure sensor when the water tape drum is vacant, is that pressure is passed The average relative value of sensor, is the decision content of the pressure sensor, is the conversion factor of weight and pressure value.

Conversion factor determines that specific measuring method can be that the object of known weight is placed on into pressure according to actual measurement On force snesor, the pressure value of pressure sensor is read, weight is conversion factor with the ratio of pressure value, ignoring other interference In the case of factor, conversion factor is the inverse of gravity acceleration g.

Basic ideas are：Using the pressure value of pressure sensor divided by it is vacant when pressure value as relative value；Then calculate The mean value of relative value；Relative value is deducted by 1.2 times of mean value and divided by its absolute value, plus one divided by being judged after two Value, now, relative value is 1 less than the decision content of the pressure sensor of 1.2 times of mean value, and relative value is more than 1.2 times of mean value The decision content of pressure sensor is 0；By decision content and the product accumulation of pressure value, the pressure value that decision content is 0 is eliminated, while will One subtract decision content and mean value and it is vacant when pressure value product accumulation, eliminate the pressure value that decision content is 1, two are added up it It is real-time weight with being multiplied by after conversion factor；In real time weight deducts the weight before calculating, then divided by the total of dry and wet water band Weight, plus the space hold ratio before calculating, obtains real-time space hold ratio.

Generally, the flatness on platform 63 is not high, and the flatness of the bottom of water tape drum is not also high, so allows for The differing pressure for measuring of the pressure sensor being arranged on platform 63 is very big, once certain or certain several pressure sensors occur Failure, then cannot have big difference to judge by the pressure that pressure sensor is measured with the pressure value of other pressure sensors, this Sample one, is difficult to realize the measurement to water tape drum weight.

In addition, water tape drum storage water band be probably solid carbon dioxide band, it is also possible to wet water band, same volume, solid carbon dioxide band and The weight of wet water band differs greatly, thus, it may be difficult to determine the space occupancy rate of water band according to weight.

Have the beneficial effect that：By using the pressure value of pressure sensor divided by it is vacant when pressure value as relative value, so as to Eliminate the pressure value that different pressure sensors measure to have big difference the impact that causes of judge exceptional value；By asking relative value Mean value, and the certain multiple of mean value is deducted into relative value and divided by absolute value, relative value is converted to into decision content, will be It is no to be converted into the 1 and 0 of decision content in the certain multiple interval of mean value；By decision content and the product of pressure value, elimination is sentenced Definite value is the pressure value of 0 (not in the certain multiple of mean value), by subtracting the product of decision content with one and adding up, by what is eliminated Decision content is that the right value of 0 pressure value (these are exceptional value) adds up, and is so obtained the weight of supposition, so as to try to achieve reality Weight；By the weight that will increase divided by dry/wet water band gross weight, so as to eliminate the weight difference of solid carbon dioxide band and wet water band to The impact (value of M is determined by the species of the water band being put into) that measurement brings；Computing formula is simple, convenient, calculate it is quick and Occupying system resources are few.

<Walking mechanism>

The walking mechanism includes：

One front-wheel 71, it is axially disposed within the bottom of frame, rotates around the vertical axes 72；

One drive axle, it is arranged on the vehicle frame, is connected with driving means, and the drive axle inside is equipped with differential mechanism；

Two trailing wheels, it is arranged on the bottom of frame, is connected with the drive axle.

So, realize that left and right trailing wheel freedom and flexibility differential is rotated by the differential mechanism in drive axle in the walking mechanism, It is convenient to turn；It is easy to use and reliable and the radius of turn of three-wheel mechanism is little；Three-wheel mechanism coordinates differential mechanism to realize radius more Little turning, and freedom and flexibility.The driving means provide power for drive axle.

The trailing wheel of the front-wheel 71/ is rubber tyre, so facilitates various severe road conditions, and good by property.

<Steering mechanism>

Under normal circumstances, the top that handlebar 8 is arranged on front-wheel 71 is carried, carries the central axis of handlebar 8 by front The center of wheel 71, the carrier of this set not only needs to reserve steering sky to the front-wheel 71 and carrying handlebar 8 of responsible steering Between, while carrying handlebar 8 can take the segment space above carrier so that the receiving space of carrier diminishes, and so exists When carrying water band or water pump, the water pump/water band of smaller size smaller can only be contained or contained using higher volume of carrier Dress, the transport of feed water band and water pump is made troubles.

With reference to shown in Fig. 9, the steering mechanism includes：

Front-wheel 71, fixes thereon a vertical axes 72；

Fixed block 73, it is fixed on the vehicle frame, and bottom has an axis hole 74, the axis hole 74 and the vertical axes 72 Coordinate and rotate；

The front-wheel 71 forward extends out a projecting block 75, and a carrying handlebar 8 is vertically fixed on the top of the projecting block 75.

As such, it is possible to pass through the carrying control front-wheel 71 of handlebar 8 turned to, simultaneously as the carrying handlebar 8 is consolidated The top of projecting block 75 of the front-wheel 71 is scheduled on, so, the handlebar 8 of carrying will not take the space of the top of front-wheel 71, from And the segment space is improve into the receiving space of carrier as the bearing space of carrier, it is convenient that water band/water pump is carried out Carry.

With reference to shown in Figure 10, the carrying handlebar 8 includes：

Handle case 81, it is connected with the top of the projecting block 75 by bearing pin, around bearing pin rotation；

Switch 82, it is fixed in the handle case 81, and one end of the bearing pin is provided with switch opening；

Pressure ram 83, its one end fixes a pulley 84, and the other end is arranged in the switch opening；

The top top of the projecting block 75 is that, with raised convex structure, the structure offsets with the pulley 84.

So, under normal circumstances, pulley 84 is against on convex structure, and pressure ram 83 is because convex structure is to pulley 84 Extruding, its end from switch opening stretch into switch 82 inside one segment distances, now switch 82 be in first position (open position Or closing position)；Handle case 81 is pulled forward (with bearing pin as the center of circle, rotate forward), 82 pulling with handle case 81 are switched, Arching trajectory movement to forward position with bearing pin as the center of circle, while driving pressure ram 83 and pulley 84 along the arc with bearing pin as the center of circle Track is moved, so, described with slip on raised convex structure while pulley 84 is moved；On this structure, have There is projection, when pulley 84 slides on non-raised circular arc, pulley 84 is constant with the relative distance of switch 82, is encountering projection When, pulley 84 slides in projection, but pulley 84 can diminish with the relative distance of switch 82, and so, pressure ram 83 is subject to pulley The impact of 84 motions, moves to switch 82, and end stretches into the distance inside switch 82 from switch opening to be increased, and now switch 82 enters Enter the second place (closing position or open position)；Handle case 81 is continued to pull forward, pulley 84 also may proceed to rolls forward, Until pulley 84 slides from projection, now, pulley 84 becomes big with the relative distance of switch 82, so, pressure ram 83 to away from The direction movement of switch 82, its end is stretched into the distance inside switch 82 from switch opening and is reduced, and now switch 82 is from second Put and leave, return to first position.

As such, it is possible to pass through the switching for pulling the opened/closed for realizing switch 82 of handle, simple structure is easy to use； In addition, switch 82 controls opened/closed by pressure ram 83, for using microswitch 82, opening/closing is beaten more It is stable, while extending service life.

Wherein, the first position, the second place can correspond to open position, closed position, it is also possible to correspondence close stance Put, open position.

No matter described the extended line of the pressure ram 83 is so, by the center of circle with raised convex structure How handle case 81 rotates, and the pressure ram 83 towards the center of circle of the structure, vertical with the surface of circular arc, justifying by pulley 84 When sliding on arc, the active force being subject to is the power perpendicular to arc-shaped surface, so, active force of the pulley 84 to pressure ram 83, and just Only parallel with pressure ram 83 power, will not produce the power perpendicular to pressure ram 83 to pressure ram 83, as such, it is possible to prevent extruding The long-time of bar 83 produces the deformation such as bending using rear, improves the service life of pressure ram 83.

A limited block 85 is also set up in the handle case 81, the limited block 85 is fixed on the handle with the switch 82 Same side in shell 81, for limit the handle case 81 scope is pulled.

When pulling, limited block 85 is moved with handle case 81, until the top of the projecting block 75 is resisted against, now Handle case 81 moves to maximum distance.

The carrying handlebar 8 also includes a gas spring 86, and its one end is connected with the handle case 81 by bearing pin, another End is connected with the axle of the projecting block 75, for the handle case for leaning forward 81 to be resetted.

The handle case 81 includes upper handle case 811 and lower handle shell 812, and the upper end of lower handle shell 812 is square opening, institute It is hollow square column to state the lower end of handle case 811, and the square column inserts the square opening.So, can first assemble in assembling Component in handle case 811, lower handle shell 812, then inserts lower handle shell 812 by upper handle case 811, so easy to assembly.

The lower end of the handle case 811 is the square column of adjustable in length, so can be adjusted by adjusting the length of square column The height for carrying handlebar, such that it is able to be adjusted the handle of carrier to adapt to user's height, raising is used Comfort level during person's push-and-pull carrier.

The gas spring 86 is connected with the upper handle case 811 by bearing pin, so can after assembling fix handle Shell 811, prevents handle case 811 from departing from from lower handle shell 812；The resting position of handle case 81 can also be limited in addition (handle case 81 does reseting movement in the presence of gas spring 86, in the side of the side of the gas spring 86 and the square column for position Stop resetting when offseting, position now is resting position, cannot be readvanced against under in gas spring 86).

The square column side of the upper handle case 811 has groove, and the size of the groove is corresponding with the gas spring 86, this Sample can accommodate the gas spring 86, prevent from being stuck in nonstatic position after the gas spring 86 and the side touching of the square column Put.

<Waterproof construction>

With reference to shown in Figure 11, a kind of waterproof construction, it includes：

One waterproof box body 91, it is fixed on the side of the vehicle frame, and towards the lateral opening of the frame outside；

One seal cover board 92, it is covered on the opening of the waterproof box body 91, is formed with the waterproof box body 91 and is sealed Structure.

As such, it is possible to externally form sealing structure, waterproof action is played to electrical equipment for being put into inside waterproof box body 91 etc., and By seal cover board 92, can be in the electrical equipment in guard box body during dolly use, it is also possible to open when needing Seal cover board 92, takes out electrical equipment；So can ensure that carrier reliability in use and security.The carrier Waterproof construction adopt seal case mode, classification of waterproof is high, safe and reliable.

Sealing ring (being not drawn in figure) is additionally provided with the seal cover board 92, the waterproof construction can be so improved Sealing effectiveness.

<Anti-lock mechanism>

Driving means in carrier be motor, the motor equipped with electromagnetic brake, for whole carrier Carry out skidding.But, the principle of electromagnetic brake is powered off rear braking, and braking action, such as Application No. are released after energization The utility model patent of CN201320027602.7《Efficient magnetic brake》But, once whole carrier is because circuit or storage The failure power-off such as battery, then electromagnetic brake will carry out skidding, locking motor so allows for whole carrier quilt Brake, it is impossible to operate, to fire-fighting work very big uncertainty is brought.

A kind of anti-lock mechanism, it includes：

One electromagnetic brake, it is connected with the motor axis；

One release lever, it is arranged on the electromagnetic brake outside and is fixedly connected with the electromagnetic brake.

So, in carrier because after the failure power-off such as circuit or battery, release lever can be pulled out, by electromagnetism Brake separates with motor axis, so as to release brake of the electromagnetic brake to motor axis, allows carrier outside Proper motion in the presence of power.

<The deformation of embodiment>

Such as the lock described in above-mentioned embodiment, it is that the spring is not fixed that present embodiment is different from part On closing piece 11 and first (block 17 of first) is rotated, fixed by closing piece bracing wire 15.

Such as the balladeur train described in above-mentioned embodiment, present embodiment is different from part and is, the corresponding outside of balladeur train Device can be fire fighting truck, or other vehicles such as transport vehicle, truck or device.

Such as the balladeur train described in above-mentioned embodiment, present embodiment is different from part and is, the inner side outer mast 321 latch hooks 12 fixed are the middle projection with U-type groove.

Such as the balladeur train described in above-mentioned embodiment, present embodiment is different from part and is, described to connect the bullet The handle of spring can be independent two, and outside outer mast 322 and inner side outer mast 321 are corresponded to respectively, or and one, to outside Outer mast 322 and inner side outer mast 321 are controlled together, it is also possible to multiple, correspond to each lock.

Preferred embodiment of the present utility model is the foregoing is only, is merely illustrative for the utility model, and It is nonrestrictive.Those skilled in the art understanding, can be to it in the spirit and scope that the utility model claim is limited Many changes are carried out, is changed, in addition it is equivalent, but fall within protection domain of the present utility model.

Claims (10)

1. a kind of walking mechanism, it is characterised in that include：

One front-wheel, it is axially disposed within bottom of frame, rotates around vertical axes；

One drive axle, it is arranged on the vehicle frame, is connected with driving means, and the drive axle inside is equipped with differential mechanism；

Two trailing wheels, it is arranged on the bottom of frame, is connected with the drive axle.

2. walking mechanism as claimed in claim 1, it is characterised in that the front-wheel/trailing wheel is rubber tyre.

3. a kind of carrier with walking mechanism described in any of the above-described claim, it is characterised in that also include：

Vehicle frame,

The walking mechanism, it is arranged on the vehicle frame, for making the carrier walk；

Steering mechanism, it is arranged on the vehicle frame, for turning to the carrier.

4. carrier as claimed in claim 3, it is characterised in that the steering mechanism includes：

Front-wheel, fixes thereon a vertical axes；

Fixed block, it is fixed on the vehicle frame, and bottom has an axis hole, and the axis hole coordinates rotation with the vertical axes；

The fixed block forward extends out a projecting block, and a carrying handlebar is vertically fixed on the top of the projecting block.

5. carrier as claimed in claim 4, it is characterised in that the carrying handlebar includes：

Handle case, it is connected with the top of the projecting block by bearing pin, around bearing pin rotation；

Switch, it is fixed in the handle case, and one end of the bearing pin is provided with switch opening；

Pressure ram, its one end fixes a pulley, and the other end is arranged in the switch opening；

The top top of the projecting block is that, with raised convex structure, the structure offsets with the pulley.

6. carrier as claimed in claim 5, it is characterised in that the extended line of the pressure ram is by described with raised The center of circle of convex structure.

7. carrier as claimed in claim 5, it is characterised in that the carrying handlebar also includes a gas spring, the gas Spring one end is connected with the handle case by bearing pin, and the other end is connected with the projecting block axle.

8. carrier as claimed in claim 7, it is characterised in that the handle case includes upper handle case and lower handle shell, institute It is square opening to state lower handle shell upper end, and the upper handle case lower end is hollow square column, and the square column inserts the square opening.

9. carrier as claimed in claim 8, it is characterised in that the gas spring is connected with the upper handle case by bearing pin Connect.

10. carrier as claimed in claim 8, it is characterised in that the square column side of the upper handle case has groove, described The size of groove is corresponding with the gas spring.