CN102134958B - Movable mechanical equipment and working ladder - Google Patents
Movable mechanical equipment and working ladder Download PDFInfo
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- CN102134958B CN102134958B CN 201110042011 CN201110042011A CN102134958B CN 102134958 B CN102134958 B CN 102134958B CN 201110042011 CN201110042011 CN 201110042011 CN 201110042011 A CN201110042011 A CN 201110042011A CN 102134958 B CN102134958 B CN 102134958B
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- axle bed
- back shaft
- motion bar
- face
- working stand
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- 239000007937 lozenge Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 7
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- 230000009467 reduction Effects 0.000 description 13
- 230000000630 rising effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 241000282326 Felis catus Species 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/381—Ladders with rungs or treads attached only to one rigid longitudinal member
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/10—Sections fitted end to end
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
- E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members
- E06C5/04—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic
- E06C5/16—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic using mechanical transmission only, with or without fluid or other non-mechanical couplings or clutches
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
- E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members
- E06C5/04—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic
- E06C5/16—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic using mechanical transmission only, with or without fluid or other non-mechanical couplings or clutches
- E06C5/20—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic using mechanical transmission only, with or without fluid or other non-mechanical couplings or clutches using hand-power
Abstract
The invention relates to a working ladder and movable mechanical equipment comprising the working ladder. The disclosed working ladder comprises a fixed rod and a first movable rod, as well as a first support shaft seat and a first support shaft, wherein a first chute penetrating two ends is formed on the first support shaft seat; the first end and the second end of the first support shaft seat are hinged with the lower end of the fixed rod and the first end of the first movable rod respectively; two hinge axle lines which are parallel relatively are formed at two ends of the first support shaft seat, and are positioned on the same side of the chute; and the first support shaft is matched with the first chute, and the length of the support shaft is more than that of the first chute. The height of the step of the first movable rod can be adjusted according to different working requirements, the height adjusting process can be completed only by selectively sliding the first support shaft along the first chute, and the working ladder is convenient to operate without requiring a dedicated drive mechanism, so that the use cost of the working ladder is reduced.
Description
Technical field
The present invention relates to a kind of working stand, in addition, the invention still further relates to a kind of movable mechanical equipment that comprises above-mentioned working stand.
Background technology
Conventional operation ladder on the pump truck is generally pure rigidity working stand, please refer to Fig. 1, and Fig. 1 is the structural representation of a kind of pure rigidity working stand in the prior art.Pump truck has supporting leg, by the state that changes supporting leg pump truck is changed between transport condition and duty; Under transport condition, guarantee that travelling of pump truck just must make between the minimum single order step 11 of working stand and the ground by performance enough distances are arranged; Lower in working order, supporting leg is propped up, thereby so that the distance on the minimum single order step 11 of working stand and ground increases, this has highly often exceeded the scope of human engineering requirement, so that personnel's cat ladder is difficult; Like this, the working stand usability is difficult to satisfy actual needs.
For solving the problems of the technologies described above, also provide a kind of mixed type working stand in the prior art.Please refer to Fig. 2, Fig. 2 is the structural representation of a kind of mixed type working stand in the prior art.The mixed type working stand also is fixed with two sagging soft ropes under the rigidity part except the rigidity part that comprises steel work formation, the lower end of these two ropes is fixed with rope ladder step surface 21 (being generally a horizontal rod shaped structure).Because the rope ladder step surface 21 of this kind mixed type working stand and rigidity are connected by rope between partly, so can descend in working order, keep the distance between rope ladder step surface 21 and the ground less, under transport condition, by modes such as upsets, keep good the travelling of pump truck to pass through performance.But because rope ladder step surface 21 partly links to each other with rigidity by flexible ropes, rope ladder step surface 21 has unstability, and therefore, when cat ladder, the staff is easy to step on sky, and shank and rigidity is partly collided and injured.Therefore, the safety and reliability of mixed type working stand is not enough.
For functional performance, the safety and reliability that improves working stand, a kind of automatic telescopic ladder also is provided in the prior art, please refer to Fig. 3, Fig. 3 is the structural representation of a kind of automatic telescopic ladder in the prior art.Automatic telescopic ladder in the prior art comprises standing part 31, hydraulic cylinder 32 and movable part 33; Standing part 31 comprises fixed bar and the step of fixing with fixed bar.Movable part 33 comprises motion bar and the step of fixing with motion bar; The top of fixed bar end portion and motion bar is set with, also links to each other slidably; Hydraulic cylinder 32 two ends link to each other with movable part with standing part respectively, and hydraulic cylinder 32 flexible can drive motion bar and fixed bar relatively moves.When pump truck is in transport condition, make hydraulic cylinder 32 be in contraction state, thereby so that the motion bar of movable part 33 moves in the fixed bar according to predetermined length, and then increased the distance on movable part 33 steps and ground, so that the good transparent performance that travels of pump truck maintenance; When pump truck was in running order, hydraulic cylinder 32 was in elongation state, thereby so that the motion bar of movable part 33 according to predetermined length in the fixed bar mobile out, and then the distance on take in sail part 33 steps and ground is so that personnel climb easily.Although this automatic telescopic ladder has preferably functional performance, safety and reliability, but owing to need to utilize hydraulic cylinder 32 driving movable parts 33 to stretch the height of movable part 33 steps is regulated, therefore, this automatic telescopic ladder has the higher deficiency of use cost.
Not only there are the problems referred to above in the working stand of pump truck, and also there is identical problem in the working stand of other movable type engineering machine or other movable mechanical equipments.Therefore, how when keeping usability, safety, reliability, the use cost that reduces working stand is those skilled in the art's technical issues that need to address.
Summary of the invention
First purpose of the present invention provides a kind of working stand, and this working stand has lower use cost when keeping usability, safety, reliability.
Providing on the basis of above-mentioned working stand, second purpose of the present invention is to provide a kind of movable mechanical equipment that comprises above-mentioned working stand.
For realizing above-mentioned first purpose, working stand provided by the invention comprises fixed bar and the first motion bar, comprises that also first supports axle bed and the first back shaft; Described first supports axle bed has the first slideway that connects two ends; Described first to support the first end of axle bed and the second end hinged with the first end of the lower end of described fixed bar and described the first motion bar respectively, form the hinge axes of two opposing parallel at the first two ends of supporting axle bed, these two hinge axes are positioned at the same side of described slideway; Described the first back shaft cooperates with described the first slideway, and its length is greater than the length of described the first slideway.
Optionally, the otic placode of the upper surface of the otic placode of the upper surface of the first end of described the first support axle bed and the lower end of described fixed bar is hinged by bearing pin, and the otic placode of the upper surface of the otic placode of the upper surface of the second end of described the first support axle bed and the first end of described the first motion bar is hinged by bearing pin.
Optionally, the soffit of the first end of the soffit of the lower end of the soffit of the second end of the soffit of the first end of described the first support axle bed, described the first support axle bed, described fixed bar and described the first motion bar all arranges the otic placode with pin-and-hole.
Optionally, described otic placode includes two corresponding auricular branch plates.
Optionally, the end face of the end face of the first end of described the first back shaft and the second end comprises respectively locating surface and locking face, this locating surface all bearing of trend with described the first back shaft is vertical, and this locking face is the plane of all intersecting with the upper surface of the first back shaft and locating surface.
Optionally, the locking face of the end face of the locking face of the end face of the first end of described the first back shaft and its second end is symmetrical.
Optionally, comprise that also the second motion bar, second supports axle bed and the second back shaft; Described second supports axle bed has the second slideway that connects its two ends; Described second to support the first end of axle bed and the second end hinged with the first end of the second end of described the first motion bar and described the second motion bar respectively, form the hinge axes of two opposing parallel at the second two ends of supporting axle bed, these two hinge axes are positioned at the same side of described the second slideway; Described the second back shaft cooperates with described the second slideway, and its length is greater than the length of described the second slideway.
Optionally, the first end face of described the second back shaft and the second end face comprise respectively locating surface and locking face, this locating surface all bearing of trend with described the second back shaft is vertical, and this locking face is the plane of all intersecting with the upper surface of described the second back shaft and locating surface.
Optionally, the end face of the second end of described the first motion bar comprises lozenges, and described lozenges is the plane that the end face with the second end of the soffit of described the first motion bar and described the first motion bar all intersects.
In order to realize above-mentioned second purpose, movable mechanical equipment provided by the invention comprises apparatus body, also comprises above-mentioned any working stand, and the upper end of the fixed bar of described working stand is installed on the described apparatus body.
Relative above-mentioned background technology, working stand provided by the invention comprise that fixed bar, first supports axle bed, the first back shaft and the first motion bar.First supports axle bed has the first slideway that connects two ends, the described first first end that supports axle bed is articulated in the lower end of fixed bar, the described first the second end that supports axle bed is articulated in the first end of described the first motion bar, in the hinge axes that supports two opposing parallel of axle bed two ends formation, these two hinge axes are positioned at the same side of described slideway; The length of described the first back shaft is greater than the length of the first support axle bed, and described the first back shaft cooperates with the described first the first slideway that supports axle bed.Same as the prior art, be provided with at least a step on the fixed bar, and ordinary circumstance will fixed bar the upper end fix with the apparatus body of movable mechanical equipment, simultaneously must be so that have predetermined angle between fixed bar and the horizontal plane; A step is set on the first motion bar.Because the first back shaft of this working stand can slide along the first slideway, thereby according to different needs, make the first back shaft stretch out first end or second end of the first support axle bed, form two states; Because first two hinge axes that support the axle bed two ends are positioned at the same side of the first slideway, like this, first supports axle bed can pass to the first motion bar with respect to rotatablely moving of fixed bar with it, makes the first motion bar support axle bed with respect to first and rotates in the opposite direction.Under a kind of state, make the first back shaft first end stretch out the first end of the first support axle bed, the first end of the first back shaft and fixed bar lower end are inconsistent, simultaneously then the retract end face of the first end that makes the first motion bar of the second end of the first back shaft is inconsistent with the end face of the second end of the first support axle bed, thereby changed the first angle and the first angle that supports between axle bed and the first motion bar that supports between axle bed and the fixed bar, the step of the first motion bar is risen, increased the step of the first motion bar and the distance between the ground; Under the another kind of state, the first back shaft is slided in the opposite direction along slideway, make the second end of the first back shaft stretch out the first the second end that supports axle bed, the end face of the end face of the second end of the first back shaft and the first end of the first motion bar is inconsistent, the first end of the first back shaft is retracted simultaneously, so that the end face of the first end of the end face of the lower end of fixed bar and the first support axle bed is inconsistent, thereby changed the first angle and the first angle that supports between axle bed and the first motion bar that supports between axle bed and the fixed bar, the step of the first motion bar is reduced, reduced the step of the first motion bar and the distance between the ground.The conversion of two states can change the step of the first motion bar and the distance between the ground according to actual needs, when movable type engineering machine is in transport condition, the step of the first motion bar is raise, guarantee the performance of passing through of movable mechanical equipment, lower in working order, the step of the first motion bar is reduced, make things convenient for staff's cat ladder, make this working stand have good usability.Under two states, the various piece of this working stand is and is rigidly connected, and has corresponding safety and reliability.When adjusting the height that the first motion bar tops bar, only need to pull the first motion bar and first and support axle bed, the first back shaft is slided along the first the first slideway that supports axle bed, operation is very easy, do not need special driving mechanism, therefore reduced the use cost of working stand.
As follows to the such scheme preferred version, the upper surface that supports the first end of the upper surface of lower end of upper surface, fixed bar of the second end of axle bed and the first motion bar at the first upper surface, first that supports the first end of axle bed all arranges the otic placode with pin-and-hole; Above-mentioned otic placode can comprise two corresponding auricular branch plates, by realizing hingedly can making first to support between axle bed and the fixed bar cooperating between bearing pin and the corresponding otic placode, more frame is flexible in rotation between the first motion bar and the first support axle bed, and convenient disassembly.
In addition, otic placode with pin-and-hole can all be set at the soffit that the first soffit, first that supports the first end of axle bed supports the first end of the soffit of lower end of soffit, fixed bar of axle bed the second end and the first motion bar.It is under predetermined state that soffit arranges otic placode, makes the first support axle bed and fixed bar keep fixing, perhaps makes the first support axle bed and the first motion bar keep fixing; Can further improve like this stability, the safety and reliability of working stand.
In order further to improve the stability of working stand, can also improve the first back shaft, namely at the end face of the first back shaft first end and the end face of the second end locating surface and locking face are set respectively, this locating surface all bearing of trend with the first back shaft is vertical, and this locking face is the plane of all intersecting with the upper surface of the first back shaft and locating surface; It is preferred so that the locking face of the end face of the locking face of the end face of the first end of the first back shaft and its second end is symmetrical.Because locating surface and locking face are set, thereby when movable mechanical equipment is in transport condition, the end face of the locking face of the first end of the first back shaft and the lower end of fixed bar is inconsistent, and the end face of the first end of the locating surface of the second end of the first back shaft and the first motion bar is inconsistent simultaneously; And when movable mechanical equipment is in running order, the end face of the locating surface of the first end of the first back shaft and the lower end of fixed bar is inconsistent, the end face of the first end of the locking face of the second end of the first back shaft and the first motion bar is inconsistent simultaneously, can guarantee that like this contact is face contact, stability, reliability and the safety of the working stand that improves further.
In addition, in order to adapt to wider requirement, on the basis of such scheme, increase again the second motion bar, second and support axle bed and the second back shaft.Second supports axle bed has the second slideway that connects its two ends, second to support the first end of axle bed and the second end hinged with the first end of the second end of the first motion bar and the second motion bar respectively, form the hinge axes of two opposing parallel at the two ends of the second motion bar, these two hinge axes are positioned at the same side of the second slideway, the second back shaft cooperates with the second slideway, and its length is greater than the length of the second slideway; Support cooperation between axle bed and the second motion bar so that the adjustable extent of the minimum shoulder height of working stand is larger by the second back shaft, second like this, thereby increase the accommodation of working stand.
End face at the second end of the first motion bar arranges a lozenges, and this lozenges is the plane that the end face with the second end of the soffit of the first motion bar and the first motion bar all intersects.Can effectively the second motion bar be remained on horizontal level by arranging of this lozenges, improve the reliability of working stand.
Because above-mentioned working stand has above-mentioned technique effect, the movable mechanical equipment that comprises above-mentioned working stand that provides also has corresponding technique effect.
Description of drawings
Fig. 1 is the structural representation of a kind of pure rigidity working stand in the prior art;
Fig. 2 is the structural representation of a kind of mixed type working stand in the prior art;
Fig. 3 is the structural representation of a kind of automatic telescopic ladder in the prior art;
The stereogram of the working stand that Fig. 4 provides for the embodiment of the invention one;
In the working stand that Fig. 5 provides for the embodiment of the invention one, the first back shaft and first supports the stereogram of axle bed;
Structural representation when the working stand that Fig. 6 provides for the embodiment of the invention one is in the rising state;
Structural representation when the working stand that Fig. 7 provides for the embodiment of the invention one is in the reduction state;
In the working stand that Fig. 8 provides for the embodiment of the invention one, the structural representation of the first back shaft;
Structural representation when the working stand that Fig. 9 provides for the embodiment of the invention two is in the rising state;
Structural representation when the working stand that Figure 10 provides for the embodiment of the invention two is in the reduction state;
Structural representation when the working stand that Figure 11 provides for the embodiment of the invention two is in further reduction state.
The specific embodiment
In order to make those skilled in the art understand better technical scheme provided by the invention, be described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 4 and Fig. 5, the stereogram of the working stand that Fig. 4 provides for the embodiment of the invention one; In the working stand that Fig. 5 provides for the embodiment of the invention one, the first back shaft and first supports the stereogram of axle bed.
The working stand that embodiment one provides comprises that fixed bar 2, the first back shaft 5, first support axle bed 6 and the first motion bar 7.
The upper end of fixed bar 2 and the apparatus body of movable mechanical equipment are fixed, and when being applied on the pump truck, fix with the car body of pump truck; For the convenience of installing, can fixed connecting piece be set in fixed bar 2 upper ends, as: in fixed bar 2 upper ends a junction plate 1 is set, so that the upper end of junction plate 1 in the vertical direction and fixed bar 2 is fixed, in junction plate 1 extended part connecting hole is set, normal conditions are for the stressed both sides that evenly can make junction plate 1 extend to working stand, and in the both sides of junction plate 1 symmetrical connecting hole are set.Same as the prior art, according to the needs of real work, fixed bar 2 arranges the step of predetermined quantity, and the first motion bar 7 arranges a step.
The second end of the first end of the first motion bar 7 and the first support axle bed 6 is hinged.The first two ends of supporting axle bed 6 form the hinge axes of two opposing parallel, and these two hinge axes are positioned at the same side of described slideway.As shown in Figure 4, in the present embodiment, two jointed shafts are positioned at the slideway upside, and and slideway between have suitable distance.
First supports axle bed 6 has the first slideway that connects two ends, and the first back shaft 5 cooperates with the first slideway, and its length is greater than the length of the first slideway; The first first end that supports axle bed 6 is articulated in the lower end of fixed bar 2.The first back shaft 5 can support axle bed 6 with respect to first and slide, and according to the difference of its position, this working stand has two states, and state and reduction state namely raise.
Please refer to Fig. 6 and Fig. 7, Fig. 6 is the structural representation of working stand provided by the present invention when being in the rising state; Fig. 7 is the structural representation of working stand provided by the present invention when being in the reduction state.
When pump truck is in transport condition, when needing the step rising of the first motion bar 7, along the first the first slideway that supports axle bed 6 first back shaft 5 that slides, so that the first end of the first back shaft 5 stretches out the first end of the first support axle bed 6, the end face of the lower end of the end face of the first end of the first back shaft 5 and fixed bar 2 is inconsistent; The second end of the first back shaft 5 is then retracted simultaneously, so that the end face of the second end of the end face of the first end of the first motion bar 7 and the first support axle bed 6 is inconsistent, thereby changed the first angle and the first angle that supports between axle bed 6 and the first motion bar 7 that supports between axle bed 6 and the fixed bar 2, so that the step of the first motion bar 7 rises, and remaining on this state, this state is called the rising state.When pump truck in running order, when needing the step reduction of the first motion bar 7, the first back shaft 5 is slided in the opposite direction along the first slideway, make the second end of the first back shaft 5 stretch out the first the second end that supports axle bed 6, the end face of the end face of the second end of the first back shaft 5 and the first end of the first motion bar 7 is inconsistent, the first end of the first back shaft 5 is then retracted simultaneously, so that the end face of the first end of the end face of the lower end of fixed bar 2 and the first support axle bed 6 is inconsistent, thereby changed the first angle and the first angle that supports between axle bed 6 and the first motion bar 7 that supports between axle bed 6 and the fixed bar 2, the step of the first motion bar 7 is reduced, and remaining on this state, this state is called the reduction state.Under the rising state, the distance between the step of the first motion bar 7 and the ground increases, thereby so that pump truck has good permeability; Under the reduction state, the step of the first motion bar 7 and the distance between the ground reduce, thereby can make things convenient for staff's cat ladder, make this working stand have good usability.
Under two states, the various piece of this working stand is and is rigidly connected, and has corresponding safety and reliability.When adjusting the height that the first motion bar 7 tops bar, only need to pull the first motion bar 7 and first and support axle bed 6, the first back shaft 5 is slided along the first the first slideway that supports axle bed 6, operation is very easy, do not need special driving mechanism, therefore reduced the use cost of working stand.
Please continue with reference to figure 4 and Fig. 5, on the upper surface of the lower end of fixed bar 2, first support on the upper surface of first end of axle bed 6, first support on the upper surface of the second end of axle bed 6 and otic placode 4 with pin-and-hole all is set on the upper surface of the first end of the first motion bar 7, ordinary circumstance can be with otic placode 4 by being welded and fixed; It is hinged with the second end of the first support axle bed 6 to cooperate the lower end and first that makes fixed bar 2 to support the first end of the first end of axle bed 6 and the first motion bar 7 with pin-and-hole on the otic placode 4 by bearing pin 3; The top bar scope of height change of the first motion bar 7 can be increased by otic placode and the hinged one side of bearing pin, the installation and removal of working stand can also be made things convenient for simultaneously; Otic placode 4 can be two auricular branch plates that are parallel to each other, so just can be so that connect more stable.
The soffit that in addition, can also support at the soffit, first that the soffit, first of the lower end of fixed bar 2 supports the first end of axle bed 6 first end of the soffit of the second end of axle bed 6 and the first motion bar 7 all arranges the otic placode 4 with pin-and-hole; Like this, be under the different states at working stand, selectively fixing by bearing pin 3; When working stand is in propradation when pump truck is in transport condition, otic placode 4 and first otic placode 4 that supports the soffit of axle bed 6 first ends of the soffit of the lower end of fixed bar 2 are unclamped, the otic placode 4 of soffit that the otic placode 4 of the soffit of the first end of the first motion bar 7 and first supports the second end of axle bed 6 is connected by bearing pin 3, thereby so that the second end of the first end of the first motion bar 7 and the first support axle bed 6 fix; When working stand is in the reduction state when pump truck is in running order, the otic placode 4 of soffit that the otic placode 4 and first of the soffit of the lower end of fixed bar 2 is supported the first end of axle bed 6 is connected by bearing pin 3, the otic placode 4 of soffit that the otic placode 4 of the soffit of the first end of the first motion bar 7 and first supports the second end of axle bed 6 unclamps, thereby so that first supports the first end of axle bed 6 and the lower end of fixed bar 2 is fixed.This by bearing pin 3 selectively fixed form change distance between the predetermined step of working stand and the ground, operating process is easy, and use cost is low, simultaneously so that working stand when different states, connect more stablely, increased stability and the security performance of working stand.
As shown in Figure 8, in the working stand that Fig. 8 provides for the embodiment of the invention one, the structural representation of the first back shaft, the end face of the first end of the first back shaft 5 and the end face of the second end can also be arranged respectively locating surface 5a and locking face 5b, the locating surface 5a all bearing of trend with the first back shaft 5 is vertical, and locking face 5b is the plane of all intersecting with the upper surface of this first back shaft 5 and corresponding locating surface 5a.Above-mentioned locating surface 5a and the setting of locking face 5b are in order to guarantee that working stand is in that the first back shaft 5 all is that face contacts with the lower end of fixed bar 2 and the first end of the first motion bar 7 under the different conditions, namely when working stand is in propradation, the end face of the locking face 5b of the first end of the first back shaft 5 and the lower end of fixed bar 2 is inconsistent, the end face of the first end of the locating surface 5a of the second end of the first back shaft 5 and the first motion bar 7 is inconsistent simultaneously, when working stand is in the reduction state, otherwise then.Owing to the contact in two kinds of situations is the face contact, thereby so that working stand is more stable.Locking face 5b can set at the angle of inclination according to actual needs, is horizontal to guarantee the step on the first motion bar 7; Can also make the locking face 5b of end face of the locking face 5b of end face of first end of the first back shaft 5 and its second end symmetrical.
In the optimal technical scheme, can also make fixed bar 2, the first motion bar 7 and the first support axle bed 6 with square tube, the first back shaft 5 can be made of square steel accordingly, can select to support little No. one square tube of square tube that axle bed 6 is selected than first, guarantee that the first back shaft 5 can get final product in the square tube cavity of the first support axle bed 6, this structure can play the effect that increases working stand stability.
In the above-mentioned example about working stand various piece upper surface and soffit all for ground, relative with the ground soffit that is, on the contrary then be upper surface.
According under the different conditions to the requirement of working stand, can also further improve above-described embodiment.Please refer to Fig. 9 and Figure 10, the structural representation of the working stand that Fig. 9 provides for the embodiment of the invention two, simultaneously, the structural representation when this illustrates this working stand and is in the rising state; Structural representation when the working stand that Figure 10 provides for the embodiment of the invention two is in the reduction state, among the embodiment two, working stand comprises that also the second motion bar 70, second supports axle bed 60 and the second back shaft 50.Second supports axle bed 60 has the second slideway that connects its two ends, the first end of the second support axle bed 60 and the second end of the first motion bar 7 are hinged, the second end of the second support axle bed 60 and the first end of the second motion bar 70 are hinged, support the hinge axes that axle bed 60 two ends form two opposing parallel second, these two hinge axes are positioned at the same side of the second slideway, the second back shaft 50 cooperates with the second the second slideway that supports axle bed 60, and its length can further increase or shorten according to different needs the length of working stand like this greater than the length of the second slideway.When pump truck is in transport condition, make working stand be in the rising state in the present embodiment; Please refer to Fig. 9, the setting of the first back shaft 5 is identical with the position of rising state among the embodiment one; Then along the second slideway second back shaft 50 that slides, make the second back shaft 50 stretch out the first end of the second support axle bed 60, the end face of the second end of the end face of the first end of the second back shaft 50 and the first motion bar 7 is inconsistent, the second end of the second back shaft 50 is retracted simultaneously, so that the end face of the first end of the end face of the second end of the second support axle bed 60 and the second motion bar 70 is inconsistent.When pump truck is in running order, make working stand be in the reduction state in the present embodiment, please refer to Figure 10, the first back shaft 5 keeps motionless; The second back shaft 50 is slided into opposite direction along the second slideway, so that the second end of the second back shaft 50 stretches out the second end of the second support axle bed 60, the end face of the end face of the second end of the second back shaft 50 and the first end of the second motion bar 70 is inconsistent, the first end of the second back shaft 50 is retracted simultaneously, so that second to support the end face of the second end of the end face of first end of axle bed 60 and the first motion bar 7 inconsistent, this has just reduced step on the second motion bar 70 and the distance between the ground on above-mentioned basis.On the basis of above-mentioned duty, can also further reduce the distance between the second motion bar 70 and the ground, please refer to Figure 11, the structural representation the when working stand that Figure 11 provides for the embodiment of the invention two is in further reduction state; This moment, the first end of the first back shaft 5 was retracted, so that the end face of the lower end of the end face of the first end of the first supporting seat 6 and fixed bar 2 is inconsistent, the second end of the first back shaft 5 stretches out the second end of the first support axle bed 6 simultaneously, and the end face of the end face of the second end of the first back shaft 5 and the first end of the first motion bar 7 is inconsistent; At this moment the first end of the second back shaft 50 is retracted, so that the end face of the second end of the end face of the first end of the second support axle bed 60 and the first motion bar 7 is inconsistent, simultaneously the second end of the second back shaft 50 stretches out the second the second end that supports axle bed 60, the end face of the end face of the second end of the second back shaft 50 and the first end of the second motion bar 70 inconsistent.Can take full advantage of in this case the length of working stand itself, arrive the step on working stand the second motion bar 70 and the Distance Shortened between the ground minimum, thereby can be so that the excursion of the distance between working stand and the ground be larger, the scope of adaptation is more wide.
Can be identical with arranging of the first back shaft 5 for above-mentioned the second back shaft 50, namely the first end face and the second end face at the second back shaft 50 arranges respectively locating surface and locking face, this locating surface all bearing of trend with the second back shaft 50 is vertical, and this locking face is the plane of all intersecting with the upper surface of the second back shaft 50 and this locating surface.Above-mentioned locating surface and the setting of locking face also are in order to guarantee that working stand is in that the second back shaft 50 all is that face contacts with the second end of the first motion bar 7 and the first end of the second motion bar 70 under the different conditions, thereby so that working stand is more stable.
In addition, in the present embodiment, the second end of the first motion bar 7 is provided with lozenges, this lozenges is the plane that the end face with the second end of the soffit of the first motion bar 7 and the first motion bar 7 all intersects; Like this, by the inclination angle of this lozenges, the second motion bar 70 and step thereof are horizontal, improve the functional performance of working stand.
Certainly, second supports axle bed 60, the second back shaft 50 and the second motion bar 70 can support the identical of axle bed 6, the first back shaft 5 and the first motion bar 7 with first, also can be different.The soffit that also can support at the soffit, second that the soffit, second of the second end of the first motion bar 7 supports the first end of axle bed 60 first end of the soffit of axle bed 60 second ends and the second motion bar 70 arranges the otic placode with pin-and-hole, with at predetermined state, it is fixing that the first motion bar 7 and second is supported axle bed 60, or the second support axle bed 60 and the second motion bar are fixed 70.
The present invention also provides a kind of movable mechanical equipment, comprises the working stand of apparatus body and above-mentioned any structure, and the upper end of the fixed bar 2 of working stand is installed on the apparatus body.Because above-mentioned working stand has above-mentioned technique effect, the movable mechanical equipment that comprises above-mentioned working stand that provides also has corresponding technique effect.
More than working stand provided by the present invention is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a working stand comprises fixed bar (2) and the first motion bar (7), it is characterized in that, comprises that also first supports axle bed (6) and the first back shaft (5); Described first supports axle bed (6) has the first slideway that connects two ends; Described first to support the first end of axle bed (6) and the second end hinged with the first end of the lower end of described fixed bar (2) and described the first motion bar (7) respectively, form the hinge axes of two opposing parallel at the first two ends of supporting axle bed (6), these two hinge axes are positioned at the same side of described slideway; Described the first back shaft (5) cooperates with described the first slideway, and its length is greater than the length of described the first slideway.
2. working stand as claimed in claim 1, it is characterized in that, the otic placode (4) of the upper surface of the first end of described the first support axle bed (6) is hinged by bearing pin (3) with the otic placode (4) of the upper surface of the lower end of described fixed bar (2), and it is hinged that the otic placode (4) of the upper surface of the otic placode (4) of the upper surface of the second end of described the first support axle bed (6) and the first end of described the first motion bar (7) passes through bearing pin (3).
3. working stand as claimed in claim 2, it is characterized in that the soffit of the soffit of the soffit of the second end of the soffit of the first end of described the first support axle bed (6), described the first support axle bed (6), the lower end of described fixed bar (2) and the first end of described the first motion bar (7) all arranges the otic placode (4) with pin-and-hole.
4. working stand as claimed in claim 2 or claim 3 is characterized in that described otic placode (4) includes two corresponding auricular branch plates.
5. such as each described working stand of claims 1 to 3, it is characterized in that, the end face of the first end of described the first back shaft (5) and the end face of the second end comprise respectively locating surface (5a) and locking face (5b), this locating surface (5a) all bearing of trend with described the first back shaft (5) is vertical, and this locking face (5b) is the plane of all intersecting with the upper surface of the first back shaft (5) and locating surface.
6. working stand as claimed in claim 5 is characterized in that, locking face (5b) symmetry of the locking face (5b) of the end face of the first end of described the first back shaft (5) and the end face of its second end.
7. such as each described working stand of claims 1 to 3, it is characterized in that, comprise that also the second motion bar (70), second supports axle bed (60) and the second back shaft (50); Described second supports axle bed (60) has the second slideway that connects its two ends; Described second to support the first end of axle bed (60) and the second end hinged with the first end of the second end of described the first motion bar (7) and described the second motion bar (70) respectively, form the hinge axes of two opposing parallel at the second two ends of supporting axle bed (60), these two hinge axes are positioned at the same side of described the second slideway; Described the second back shaft (50) cooperates with described the second slideway, and its length is greater than the length of described the second slideway.
8. working stand according to claim 7, it is characterized in that, the first end face of described the second back shaft (50) and the second end face comprise respectively locating surface and locking face, this locating surface all bearing of trend with described the second back shaft (50) is vertical, and this locking face is the plane of all intersecting with the upper surface of described the second back shaft (50) and locating surface.
9. working stand according to claim 8, it is characterized in that, the end face of the second end of described the first motion bar (7) comprises lozenges, and described lozenges is the plane that the end face with the second end of the soffit of described the first motion bar (7) and described the first motion bar (7) all intersects.
10. a movable mechanical equipment comprises apparatus body, it is characterized in that, also comprises the claims 1 to 9 each described working stand, and the upper end of the fixed bar of described working stand (2) is installed on the described apparatus body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110042011 CN102134958B (en) | 2011-02-17 | 2011-02-17 | Movable mechanical equipment and working ladder |
| PCT/CN2011/075714 WO2012109834A1 (en) | 2011-02-17 | 2011-06-14 | Work ladder and movable mechanical equipment with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110042011 CN102134958B (en) | 2011-02-17 | 2011-02-17 | Movable mechanical equipment and working ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102134958A CN102134958A (en) | 2011-07-27 |
| CN102134958B true CN102134958B (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110042011 Active CN102134958B (en) | 2011-02-17 | 2011-02-17 | Movable mechanical equipment and working ladder |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102134958B (en) |
| WO (1) | WO2012109834A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110212B (en) * | 2014-07-10 | 2016-01-20 | 太原重工股份有限公司 | A kind of upper machine ladder and there is the plant equipment of machine ladder on this |
| CN111456128B (en) * | 2020-04-13 | 2022-04-01 | 江苏徐工工程机械研究院有限公司 | Boarding ladder and engineering machinery |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519007Y (en) * | 2001-12-04 | 2002-10-30 | 宝鸡宝石特种车辆有限责任公司 | Special ladder mounted on side door of vehicle for use in oil field |
| CN2522596Y (en) * | 2001-12-04 | 2002-11-27 | 宝鸡宝石特种车辆有限责任公司 | Oil-field special vehicle rear ladder |
| CN2813864Y (en) * | 2005-05-16 | 2006-09-06 | 陈小军 | Truck drawing ladder |
| CN2880596Y (en) * | 2006-01-18 | 2007-03-21 | 四机赛瓦石油钻采设备有限公司 | Vehicle folding ladder |
| CN201963188U (en) * | 2011-02-17 | 2011-09-07 | 三一重工股份有限公司 | Movable mechanical equipment and working ladder |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1038833A (en) * | 1977-02-02 | 1978-09-19 | John R. Keller | Ladder assembly |
| GB2012341B (en) * | 1977-08-22 | 1982-04-15 | Mahy L H T | Ladder saftety extension bracket |
| DE10127584A1 (en) * | 2001-05-29 | 2002-12-05 | Omnistor Accessories N V | Folding steps for caravan have edging strips on each side of treads, hinged levers being attached to edging strips, each lever being made up of two strips |
| CN201116447Y (en) * | 2007-09-25 | 2008-09-17 | 高振声 | Walking folding ladder for vehicle |
| CN201218051Y (en) * | 2008-06-26 | 2009-04-08 | 泰豪科技股份有限公司 | Multilevel sliding track elastic drawing ladder |
| US20100089698A1 (en) * | 2008-10-14 | 2010-04-15 | Brodsack Jeffery E | Pickup truck tailgate ladder |
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2011
- 2011-02-17 CN CN 201110042011 patent/CN102134958B/en active Active
- 2011-06-14 WO PCT/CN2011/075714 patent/WO2012109834A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2519007Y (en) * | 2001-12-04 | 2002-10-30 | 宝鸡宝石特种车辆有限责任公司 | Special ladder mounted on side door of vehicle for use in oil field |
| CN2522596Y (en) * | 2001-12-04 | 2002-11-27 | 宝鸡宝石特种车辆有限责任公司 | Oil-field special vehicle rear ladder |
| CN2813864Y (en) * | 2005-05-16 | 2006-09-06 | 陈小军 | Truck drawing ladder |
| CN2880596Y (en) * | 2006-01-18 | 2007-03-21 | 四机赛瓦石油钻采设备有限公司 | Vehicle folding ladder |
| CN201963188U (en) * | 2011-02-17 | 2011-09-07 | 三一重工股份有限公司 | Movable mechanical equipment and working ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012109834A1 (en) | 2012-08-23 |
| CN102134958A (en) | 2011-07-27 |
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