CN201580365U - Movable engineering machinery and supporting leg locking mechanism thereof - Google Patents
Movable engineering machinery and supporting leg locking mechanism thereof Download PDFInfo
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- CN201580365U CN201580365U CN2009202735844U CN200920273584U CN201580365U CN 201580365 U CN201580365 U CN 201580365U CN 2009202735844 U CN2009202735844 U CN 2009202735844U CN 200920273584 U CN200920273584 U CN 200920273584U CN 201580365 U CN201580365 U CN 201580365U
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- supporting legs
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Abstract
The utility model discloses a supporting leg locking mechanism which is used for movable engineering machinery, wherein a supporting leg of the movable engineering machinery comprises a first movable supporting leg (2), a second movable supporting leg (3) and a fixed supporting leg (4); the supporting leg locking mechanism comprises a locking component (6) and a first locking hole (21) matching with the locking component (6); the first locking hole (21) is arranged on the outer end portion of the first movable supporting leg (2), and a first mounting hole (41) is arranged on the end portion of the fixed supporting leg (4). When the first movable supporting leg (2) and the second movable supporting leg (3) are both retracted in the fixed supporting leg (4), the locking component (6) is inserted in the first locking hole (21) and the first mounting hole (41), and a presetting distance is kept between the locking component (6) and the outer end portion of the second movable supporting leg (3). The supporting leg locking mechanism is easy to manipulate and can effectively enhance locking efficiency. The utility model also provides the movable engineering machinery comprising the supporting leg locking mechanism, and reliability of the movable engineering machinery is enhanced.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of supporting leg lockout mechanism that is used for portable construction machinery and equipment.In addition, the utility model also relates to a kind of portable construction machinery and equipment that comprises above-mentioned supporting leg lockout mechanism.
Background technology
Portable construction machinery and equipment is the conventional machinery in the modern industry, and its supporting leg generally comprises fixed supporting leg and movable supporting legs.According to the flexible length of movable supporting legs, portable construction machinery and equipment supporting leg can be divided into three kinds of states: stretch state entirely, partly stretch state and full reduced state.Portable construction machinery and equipment is when travels down, and its movable supporting legs needs withdrawal to greatest extent, generally is in full reduced state, to improve safe crossing ability; When carrying out work, movable supporting legs needs protruding, generally is in and partly stretches state or stretch state entirely, to strengthen the stability of mode of operation.Under every kind of mode of operation, the supporting leg of portable construction machinery and equipment all must be worked under lock-out state, and the state of supporting leg often changes with the operating mode different needs, so portable construction machinery and equipment needs the lockout mechanism that can efficiently lock.
Please refer to Fig. 1, Fig. 1 is the decomposition view of the portable construction machinery and equipment supporting leg of a kind of typical case in the prior art.
The side plate that the side plate of first movable supporting legs 11 is provided with hole 1 and hole 2 112, second movable supporting legs 12 in the prior art is provided with hole 3 121 and hole 4 122, and the side plate of fixed supporting leg 13 is provided with hole 5 131.With hole 1, hole 3 121 and hole 5 131 alignment, and locations of plug-in mounting therein, can realize the locking when supporting leg is in full reduced state; With 3 121 alignment of hole 1 and hole, hole 2 112, hole 4 122 and hole 5 131 alignment, and in the hole of alignment locations of plug-in mounting, can realize that supporting leg is in the locking when partly stretching state; Alignd with hole 3 121 in hole 2 112,5 131 alignment of hole 4 122 and hole, and in the hole of alignment locations of plug-in mounting, can realize that supporting leg is in the locking when stretching state entirely.
Please refer to Fig. 2, Fig. 2 is the structural representation of a kind of representative type supporting leg lockout mechanism in the prior art.
A kind of locations commonly used in the prior art is a locating dowel pin 14 shown in Figure 2, and this locating dowel pin 14 comprises shank 141 and handle 142, by handle 142 shank 141 is inserted in the hole, and perhaps shank 141 is extracted from each hole.Be not difficult to find out that from figure this locating dowel pin 14 is simple in structure, be easy to processing.But there is following some problem in its practical application:
Please refer to Fig. 3 and Fig. 4, the locking scheme drawing when Fig. 3 is in mobile status for supporting leg in the prior art; Fig. 4 is the locking scheme drawing when supporting leg is in running order in the prior art.
When supporting leg is in mobile status, in first movable supporting legs 11 and second movable supporting legs, the 12 equal indentation fixed supporting legs 13, because first movable supporting legs 11 and second movable supporting legs 12 have certain angle of inclination, make hole 1, hole 3 121 and hole 5 131 the hole difficulty is increased, for the position that guarantees three holes can be corresponding, we generally must be bigger with the aperture design in hole 1 and hole 3 131, but the aperture increases and can produce certain influence to the rigidity and the intensity of first movable supporting legs 11 and second movable supporting legs 12, has weakened the reliability of supporting leg.
Supporting leg is in running order can be divided into two kinds, and a kind of hole 1 is fixed with hole 3 121 pins in order partly to stretch state, and hole 2 112, hole 4 122 and hole 5 131 pins are fixed.Because hole 1 and 3 121 apertures, hole are bigger, so the diameter of selling the first locating dowel pin 14-1 that decides hole 1 and hole 3 121 is bigger, and it is less to sell the second locating dowel pin 14-2 diameter of deciding hole 2 112, hole 4 122 and hole 5 131.The locating dowel pin 14 that so not only causes two kinds of different models of supporting leg needs can not be unified to use; And the bigger first locating dowel pin 14-1 weight of diameter is also bigger, is inconvenient to install and pick and place.
Another kind of hole 2 112 and hole 3 121 need with the first bigger locating dowel pin 14-1 of diameter in order to stretch state entirely, and hole 4 122 and hole 5 131 need with the second less locating dowel pin 14-2 of diameter.
In addition, the second locating dowel pin 14-2 is installed on the sidewall of fixed supporting leg 13, bent plate can be set on sidewall come off to stop the second locating dowel pin 14-2; The first locating dowel pin 14-1 is installed on the sidewall of second movable supporting legs 12, the space that bent plate is not installed; So the first locating dowel pin 14-1 and hole 3 121 need precision-fit to fix.After the long-term use, it is big that the gap in the first locating dowel pin 14-1 and hole 3 121 becomes, and obscission appears in the first locating dowel pin 14-1 easily, influences production safety.
Simultaneously, because spatial relation, hole 5 131 on the fixed supporting leg 13 is far away apart from the car outside, in the locking process, when the hand of operating personal enters 5 131 places, hole, can not observe the position in hole 5 131, can only seek by groping, operate very inconveniently, influenced operating time of operator to a great extent.
Therefore, how improving the operability of supporting leg locking, reduce the locking difficulty, is the present technical issues that need to address of those skilled in the art.
The utility model content
The purpose of this utility model provides a kind of supporting leg lockout mechanism that is used for portable construction machinery and equipment, this supporting leg lockout mechanism easy operating, and supporting leg locking difficulty is low, locking efficient height.Another purpose of the present utility model provides a kind of portable construction machinery and equipment that comprises above-mentioned supporting leg lockout mechanism, and its reliability is improved.
For solving the problems of the technologies described above, the utility model provides a kind of supporting leg lockout mechanism, be used for portable construction machinery and equipment, the supporting leg of this movable type construction machinery and equipment comprises first movable supporting legs and the fixed supporting leg of captiveing joint with described portable construction machinery and equipment, and second movable supporting legs that connects described fixed supporting leg and described first movable supporting legs; Described supporting leg lockout mechanism comprises Lock Part and first lock hole that matches with described Lock Part; Described first lock hole is located at the outer end of described first movable supporting legs, and the outer end of described fixed supporting leg is provided with first mounting hole; During the described fixed supporting leg of described first movable supporting legs and the equal indentation of described second movable supporting legs, described Lock Part is plugged in described first lock hole and described first mounting hole, and has predetermined distance with the outer end of described second movable supporting legs.
Preferably, described first lock hole is formed by the annulus of captiveing joint with the outer end of described first movable supporting legs.
Preferably, described Lock Part comprises only lock pin, and the diameter that should end lock pin is equal to or slightly less than the diameter of described first mounting hole.
Preferably, described Lock Part also comprises pin vertical substantially with described only lock pin and that captive joint, and described first mounting hole comprises main aperture that holds described only lock pin and the male ports of holding described pin; Described pin between described annulus and described fixed supporting leg, breaks away from described first mounting hole so that prevent the described lock pin that ends after rotating.
Preferably, described Lock Part also comprises the handle of captiveing joint with described only lock pin.
Preferably, the outer end of described second movable supporting legs is provided with second mounting hole, and the middle part is provided with the 3rd lock hole; The middle part of described first movable supporting legs is provided with second lock hole, when described first movable supporting legs and described second movable supporting legs stretch out from described fixed supporting leg, in described second mounting hole and described second lock hole, and the equal described Lock Part of plug-in mounting in described first mounting hole and described the 3rd lock hole.
Preferably, described first mounting hole and the described second installation hole size equate substantially.
The utility model also provides a kind of portable construction machinery and equipment, comprises above-mentioned each described supporting leg lockout mechanism.
Preferably, be specially movable crane.
The supporting leg of portable construction machinery and equipment comprise first movable supporting legs, with the fixed supporting leg and second movable supporting legs that is connected the described fixed supporting leg and first movable supporting legs of car body captive joint.When portable construction machinery and equipment is in mobile status, need to improve safe crossing ability in ground to the greatest extent, at this moment, in the first movable supporting legs indentation, second movable supporting legs, in the second movable supporting legs indentation fixed supporting leg, first lock hole is located at the outer end of first movable supporting legs, when making the locking of the fixed supporting leg and first movable supporting legs, not interfered by second movable supporting legs,, reach the purpose of the whole supporting leg of locking promptly by only locking the fixed supporting leg and first movable supporting legs.Obviously, so only need alignment first mounting hole and first lock hole, just can satisfy locking requirement, with respect to prior art three holes of need aliging, it is easier to align, and locks more convenient.And, because first lock hole is located at the outer end of first movable supporting legs, the position of first mounting hole that matches with first lock hole is also to the skew of the outer end of fixed supporting leg, the position of its locking is with respect to the car body outside skew of prior art to portable construction machinery and equipment, make the operator when locking, not need to put in the very long distance in car body inside, avoid the process of groping to look for the hole in car body inside, reduced the timer-operated operation easier of lock, saved the operating time.
A kind of preferred embodiment in, supporting leg Lock Part provided by the utility model also comprises pin vertical substantially with described only lock pin and that captive joint, described first mounting hole comprises main aperture that holds described only lock pin and the male ports of holding described pin, the size of described pin is less than the gap size between annulus outer end and the fixed supporting leg, make the pin can be between annulus and fixed supporting leg, like this, by the position-limiting action of pin, can prevent effectively that only lock pin breaks away from first mounting hole.Install when ending lock pin, it is corresponding with main aperture to end lock pin, and pin is corresponding with the male ports of first mounting hole, after insertion ends lock pin, rotation ends lock pin, make in the gap of pin between annulus and fixed supporting leg, like this, when only becoming flexible appears in lock pin, because fixed supporting leg is to the barrier effect of pin, can prevent effectively that only lock pin breaks away from from first mounting hole, thereby further improve the reliability of Lock Part, the safety that also improves supporting leg.
In another preferred embodiment, described second movable supporting legs is provided with second mounting hole near the end of described vertical oil cylinder, and the middle part is provided with the 3rd lock hole; The middle part of described first movable supporting legs is provided with second lock hole, when described first movable supporting legs and described second movable supporting legs stretch out from described fixed supporting leg, described second mounting hole and described second lock hole, the equal described Lock Part of plug-in mounting in described first mounting hole and described the 3rd lock hole.Plug-in mounting Lock Part in second mounting hole on second movable supporting legs and second lock hole on first movable supporting legs makes the locking position of first movable supporting legs and second movable supporting legs; Plug-in mounting Lock Part in the 3rd lock hole on second movable supporting legs and first mounting hole on the fixed supporting leg makes the locking position of the fixed supporting leg and second movable supporting legs; Therefore, by above-mentioned lock mode, when making portable construction machinery and equipment in running order, its supporting leg effectively locks.Like this, supporting leg can both be by locking two supporting legs with a Lock Part when mobile status and mode of operation, realize the locking of whole supporting leg, thereby avoid three hole alignment on first movable supporting legs, second movable supporting legs and the fixed supporting leg, reduce the alignment difficulty.Simultaneously, owing to only need two holes of alignment, then the lock hole on first movable supporting legs and second movable supporting legs does not need to design very greatly, thereby avoids the aperture too greatly to the influence of supporting leg intensity, improves the reliability of supporting leg.And first mounting hole and second mounting hole do not need alignment, make first mounting hole and second that hole size is installed and equate to become possibility, and wherein the pin limiting-members of plug-in mounting is designed to same size also becomes possibility.
Description of drawings
Fig. 1 is the decomposition view of the portable construction machinery and equipment supporting leg of a kind of typical case in the prior art;
Fig. 2 is the structural representation of a kind of representative type supporting leg lockout mechanism in the prior art;
Locking scheme drawing when Fig. 3 is in mobile status for supporting leg in the prior art;
Fig. 4 is the locking scheme drawing when supporting leg is in running order in the prior art;
Fig. 5 provides the work scheme drawing of supporting leg lockout mechanism on portable construction machinery and equipment supporting leg for the utility model;
Fig. 6 is the partial enlarged drawing of A part among Fig. 5;
Fig. 7 is the explosive view of a kind of specific embodiment of supporting leg of portable construction machinery and equipment that the utility model provides;
Fig. 8 is the partial enlarged drawing of B part among Fig. 7;
Locking scheme drawing when Fig. 9 provides portable construction machinery and equipment supporting leg mobile status for the utility model;
Figure 10 is the partial enlarged drawing of C part among Fig. 9;
Figure 11 provides the structural representation of a kind of specific embodiment of Lock Part for the utility model;
Figure 12 provides the structural representation of a kind of specific embodiment of first mounting hole for the utility model;
Figure 13 provides the scheme of installation of a kind of specific embodiment of Lock Part for the utility model;
Locking scheme drawing when Figure 14 provides portable construction machinery and equipment supporting leg in running order for the utility model.
The specific embodiment
Core of the present utility model provides a kind of supporting leg lockout mechanism that is used for portable construction machinery and equipment, this supporting leg lockout mechanism easy operating, and supporting leg locking difficulty is low, locking efficient height.Another core of the present utility model provides a kind of portable construction machinery and equipment that comprises above-mentioned supporting leg lockout mechanism, and its reliability is improved.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 5 to Fig. 7, Fig. 5 provides the work scheme drawing of supporting leg lockout mechanism on portable construction machinery and equipment supporting leg for the utility model; Fig. 6 is the partial enlarged drawing of A part among Fig. 5; Fig. 7 is the explosive view of a kind of specific embodiment of supporting leg of portable construction machinery and equipment that the utility model provides.
The supporting leg of portable construction machinery and equipment comprises first movable supporting legs 2, second movable supporting legs 3 and fixed supporting leg 4, wherein, the end of first movable supporting legs 2 is provided with vertical oil cylinder 5, second movable supporting legs 3 connects first movable supporting legs 2 and fixed supporting leg 4, and fixed supporting leg 4 is captiveed joint with the car body of portable construction machinery and equipment.The supporting leg of portable construction machinery and equipment has three kinds of states: stretch state entirely, partly stretch state and full reduced state.When portable construction machinery and equipment is in running order, its supporting leg is in as required to be stretched state entirely or partly stretches state, this moment first movable supporting legs 2 and second movable supporting legs 3 is all or part of stretches out in fixed supporting leg 4, vertical oil cylinder 5 stretches out and supports ground, to increase the supporting leg span of portable construction machinery and equipment, improve working stability.When portable construction machinery and equipment is in mobile status, its supporting leg many places are in full reduced state, this moment is oil cylinder 5 built on stilts vertically, in first movable supporting legs 2 and second movable supporting legs, the 3 indentation fixed supporting legs 4, vertical oil cylinder 5 is near the outer end of fixed supporting leg 4, to reduce the width of portable construction machinery and equipment, improve the safe crossing ability of portable construction machinery and equipment.
Entirely stretch, partly stretch still full reduced state no matter the supporting leg of portable construction machinery and equipment is in, all need supporting leg is locked.Supporting leg lockout mechanism provided by the utility model comprises Lock Part 6 and the lock hole that cooperates with Lock Part 6.Wherein, first lock hole 21 is located at the outer end of first movable supporting legs 2, first mounting hole 41 is located at the outer end of fixed supporting leg 4, when supporting leg is in full reduced state, first lock hole 21 and first mounting hole 41 are coaxial substantially, Lock Part 6 is plugged in first lock hole 21 and first mounting hole 41, and the outer end of the Lock Part 6 and second movable supporting legs 3 has predetermined distance.
Need to prove that the inside and outside noun of locality that waits that this paper is related is that the car body axis with portable construction machinery and equipment is that benchmark defines, near the axis be in, away from the axis be outside.The noun of locality that is to be understood that herein to be adopted should not limit the protection domain of this patent.
Please refer to Fig. 8, Fig. 8 is the partial enlarged drawing of B part among Fig. 7.
Further, the first above-mentioned lock hole 21 can be formed by annulus, and this annulus is captiveed joint with the outer end of first movable supporting legs 2.Like this, less to the change of first movable supporting legs 2, for example annulus can be welded on the outer end of first movable supporting legs 2, make first mounting hole 41 on the fixed supporting leg 4 coaxial substantially with annulus when supporting leg is full reduced, just can satisfy needs of the present utility model.This is simple in structure, is easy to processing, can reduce the improvement cost of supporting leg, helps the popularization of this patent.
Obviously, first lock hole 21 provided by the utility model does not limit to by annulus and forms, its concrete structure also can be a through hole of being located at the outer end of first movable supporting legs 2, and its function and annulus mentioned above also are equal to, and also can satisfy requirement of the present utility model.
Please refer to Fig. 9 and Figure 10, the locking scheme drawing when Fig. 9 provides portable construction machinery and equipment supporting leg mobile status for the utility model; Figure 10 is the partial enlarged drawing of C part among Fig. 9.
Particularly, Lock Part 6 provided by the utility model can comprise only lock pin 61, and the diameter that should end lock pin 61 is equal to or slightly less than the diameter of first mounting hole 21, guarantees that promptly only lock pin 61 can insert in first mounting hole 21.End lock pin 61 and belong to workpiece commonly used, it is simple in structure, is easy to produce and buying, and installation, convenient disassembly, utilizes to end lock pin 61 and carry out the locking cost that the supporting leg locking helps reducing supporting leg, improves the maintainability of Lock Part 6.
The only lock pin 61 and first mounting hole 41 mentioned above all are assumed to be circle, can not be circular but obviously end the lock pin 61 and first mounting hole 41, can lock first mounting hole 41 and first lock hole 21 as long as end lock pin 61, just can satisfy requirement of the present utility model.
Please refer to Figure 11 to Figure 13, Figure 11 provides the structural representation of a kind of specific embodiment of Lock Part for the utility model; Figure 12 provides the structural representation of a kind of specific embodiment of first mounting hole for the utility model; Figure 13 provides the scheme of installation of a kind of specific embodiment of Lock Part for the utility model.
In order further to improve the locking effect of supporting leg, improve the stability of Lock Part 6 and the reliability of supporting leg, supporting leg Lock Part 6 provided by the utility model can also comprise and end the pin 62 that lock pin 61 is vertical substantially and captive joint, first mounting hole 41 comprises main aperture 411 and male ports 412, wherein, main aperture 411 is used to hold only lock pin, and male ports 412 is used to hold pin 62.The size of pin 62 is less than the gap size between annulus outer end and the fixed supporting leg 4, makes the pin 62 can be between annulus and fixed supporting leg 4.Like this, by the position-limiting action of pin 62, can prevent effectively that only lock pin 61 breaks away from first mounting hole 41.
Install when ending lock pin 61, pin 62 is corresponding with the male ports 412 of first mounting hole 41, and it is corresponding with main aperture 411 to end lock pin 61.After insertion ended lock pin 61, rotation ended lock pin 61, made pin 62 in the annulus and the gap between the fixed supporting leg 4 of vertical oil cylinder outer wall.Like this, when only becoming flexible appearred in lock pin 61, the barrier effect of 4 pairs of pins 62 of fixed supporting leg can prevent effectively that only lock pin 61 breaks away from from first mounting hole 41, thereby further improves the reliability of Lock Part 6, the safety that also improves supporting leg.And the anti-drop function of pin 62 can make only and adopt the free-running fit design between the lock pin 61 and first mounting hole 41, and not necessarily needs to end lock pin 61 and first mounting hole, 41 precision-fit, only makes that lock pin 61 installations are more convenient, and it is higher to lock efficient.
Obviously, above-mentioned size of ending lock pin 61 and pin 62 has certain scope restriction, the length of ending lock pin 61 should guarantee to insert in first mounting hole 41, and the position of pin 62 on shotpin lock 61 can be just in the gap between the fixed supporting leg 4 and first lock hole 21, the length of promptly ending lock pin 61 can not be greater than the ultimate range of pin 62 to vertical oil cylinder outer wall, and lock pin 61 interferes with vertical oil cylinder 5 only to avoid.
In order to lock conveniently, Lock Part 6 provided by the utility model can also comprise the handle 63 of captiveing joint with above-mentioned only lock pin 61, can operate expediently ending lock pin 61 by handle 63, improves locking efficient.
When below all being in mobile status at portable construction machinery and equipment, the lock mode of the fixed supporting leg 4 and first movable supporting legs 2 describes.Below with the portable construction machinery and equipment of brief description the lock condition of supporting leg when in running order.
Please refer to Figure 14, the locking scheme drawing when Figure 14 provides portable construction machinery and equipment supporting leg in running order for the utility model.
When portable construction machinery and equipment was in running order, its supporting leg mostly is to be stretched state entirely or partly stretches state.Be the locking that realizes stretching state entirely or partly stretch state, the middle part that second mounting hole, 31, the second movable supporting legs 3 can be set in the outer end of second movable supporting legs 3 is provided with the 3rd lock hole 32, and at the middle part of first movable supporting legs 2 second lock hole 22 is set; When first movable supporting legs 2 and second movable supporting legs 3 stretched out from fixed supporting leg 4, second mounting hole 31 was corresponding with the position of second lock hole 22, and first mounting hole 41 is corresponding with the position of the 3rd lock hole 32, wherein equal plug-in mounting Lock Part 6.
Plug-in mounting Lock Part 6 in second mounting hole 31 on second movable supporting legs 3 and second lock hole 22 on first movable supporting legs 2 can lock the relative position of first movable supporting legs 2 and second movable supporting legs 3; Plug-in mounting Lock Part 6 in first mounting hole 41 on the 3rd lock hole 32 on second movable supporting legs 3 and the fixed supporting leg 4 can lock the relative position of the fixed supporting leg 4 and second movable supporting legs 3.Like this, the relative position of first movable supporting legs 2, second movable supporting legs 3 and fixed supporting leg 4 is locked by two Lock Parts 6, and each Lock Part 6 all only locks two holes, has reduced the hole difficulty.
As shown in Figure 7, second lock hole 22 among the figure on first movable supporting legs 2 can comprise two, is respectively hole first 22-1 and hole second 22-2; The 3rd lock hole 32 on second movable supporting legs 3 also can comprise two, is respectively hole third 32-1 and hole fourth 32-2.When portable construction machinery and equipment is in when stretching state entirely, first mounting hole 41 and hole fourth 32-2 locking, second mounting hole 31 and hole second 22-2 locking make the length of supporting leg maximum as much as possible, realize big as far as possible span, improve the working stability of portable construction machinery and equipment.When portable construction machinery and equipment is in when partly stretching state, first mounting hole 41 can lock with hole third 32-1, second mounting hole 31 can lock with hole first 22-1, first movable supporting legs 2 part from second movable supporting legs 3 is stretched out, second movable supporting legs 3 part from fixed supporting leg 4 is stretched out, and realizes the state of partly stretching of supporting leg.
Obviously, if first mounting hole 41 and hole fourth 32-2 locking, second mounting hole 31 and hole first 22-1 locking, perhaps first mounting hole 41 and hole third 32-1 locking, second mounting hole 31 locks with hole second 22-2, also can realize the state of partly stretching of supporting leg.
By above-mentioned lock mode, when portable construction machinery and equipment was in running order, its supporting leg can be realized effectively locking by two Lock Parts 6, and two holes of 6 needs lockings of each Lock Part.Can effectively avoid three hole alignment on first movable supporting legs 2, second movable supporting legs 3 and the fixed supporting leg 4 like this, can reduce the alignment difficulty, make the supporting leg locking easier.
Simultaneously, because only need two holes of alignment, then each lock hole on first movable supporting legs 2 and second movable supporting legs 3 does not need to design very greatly, the little weakening ability to supporting leg intensity in aperture is also little, thereby reduce that perforate has improved the reliability of supporting leg to the influence of supporting leg intensity on supporting leg.
In a kind of concrete embodiment, the size of first mounting hole 41 and second mounting hole 31 can equate substantially.By above-mentioned supporting leg be in the state of stretching entirely respectively, the lock mode of partly stretching state and full reduced state as can be seen, supporting leg all can be with first mounting hole 41 and 31 lockings of second mounting hole when stretching, partly stretching with full reduced state entirely, so, first mounting hole 41 can be designed to identical size with second mounting hole 31, like this, two Lock Parts 6 that match with first mounting hole 41 and second mounting hole 31 can also be designed to identical size, thereby can effectively reduce design and production and expense, reduce the productive costs of supporting leg.
For ease of describing, the lock pin that ends that can claim to cooperate with first mounting hole 41 is first to end lock pin 61-1, ends the vertical pin of lock pin 61-1 cardinal principle and is called the first pin 62-1 with first; The lock pin that ends that cooperates with second mounting hole 31 is second to end lock pin 61-2, with second to end lock pin 61-2 pin substantially be the second pin 62-2.
Need to prove that provide the locking requirement of portable construction machinery and equipment supporting leg in order to satisfy the utility model, only lock pin 61 provided by the utility model and pin 62 all need predetermined size.When supporting leg is in when stretching state entirely or partly stretching state, the size of the first pin 62-1 should be equal to or less than the gap size between the fixed supporting leg 4 and second movable supporting legs 3, is placed between the fixed supporting leg 4 and second movable supporting legs 3 so that the first pin 62-1 can end lock pin 61-1 rotation first; Simultaneously, first length of ending lock pin 61-1 should be greater than the gap size between the fixed supporting leg 4 and second movable supporting legs 3, and is less than or equal to the gap size between the fixed supporting leg 4 and first movable supporting legs 2.
Equally, the size of the second pin 62-2 should be less than or equal to the gap size between first movable supporting legs 2 and second movable supporting legs 3, is placed between first movable supporting legs 2 and second movable supporting legs 3 so that the second pin 62-2 can end lock pin 61-2 rotation second; Second length of ending lock pin 61-2 should be greater than the gap size between first movable supporting legs 2 and second movable supporting legs 3.
Obviously, and do not require that first ends lock pin 61-1 and second and end lock pin 61-2 and all have pin, first mounting hole 41 and second mounting hole 31 also can not all be the structures of band male ports 412, if can with accordingly only lock pin 61 match just passable.First ends lock pin 61-1 still can adopt bent plate of the prior art to realize anticreep, also can adopt other form anticreep, as long as can prevent that only lock pin 61 in use breaks away from first mounting hole 41 or second mounting hole 31, just can satisfy requirement of the present utility model.
But, consider the Lock Part 6 in first mounting hole 41 and second mounting hole 31 is designed to the locking expenditure that same form, same model can be saved supporting leg, so, first mounting hole 41 and second mounting hole 31 all are designed to have the structure of male ports 412, all be designed to have the form of pin 62 with ending lock pin 61, make the Lock Part 6 can batch manufacturing, to reduce production costs.
Except above-mentioned supporting leg lockout mechanism, the utility model also provides a kind of portable construction machinery and equipment that comprises above-mentioned supporting leg lockout mechanism, and the structure of these other each several parts of movable type construction machinery and equipment please refer to prior art, and this paper repeats no more.
Particularly, above-mentioned portable construction machinery and equipment can be a movable crane.
More than portable construction machinery and equipment provided by the utility model and supporting leg lockout mechanism thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (9)
1. supporting leg lockout mechanism, be used for portable construction machinery and equipment, the supporting leg of this movable type construction machinery and equipment comprises first movable supporting legs (2) and the fixed supporting leg (4) of captiveing joint with described portable construction machinery and equipment, and second movable supporting legs (3) that connects described fixed supporting leg (4) and described first movable supporting legs (2); Described supporting leg lockout mechanism comprises Lock Part (6) and first lock hole (21) that matches with described Lock Part (6); It is characterized in that described first lock hole (21) is located at the outer end of described first movable supporting legs (2), the outer end of described fixed supporting leg (4) is provided with first mounting hole (41); Described first movable supporting legs (2) and described second movable supporting legs (3) are all during the described fixed supporting leg of indentation (4), described Lock Part (6) is plugged in described first lock hole (21) and described first mounting hole (41), and has predetermined distance with the outer end of described second movable supporting legs (3).
2. supporting leg lockout mechanism according to claim 1 is characterized in that, described first lock hole (21) is formed by the annulus of captiveing joint with the outer end of described first movable supporting legs (2).
3. supporting leg lockout mechanism according to claim 2 is characterized in that, described Lock Part (6) comprises only lock pin (61), and the diameter that should end lock pin (61) is equal to or slightly less than the diameter of described first mounting hole (41).
4. supporting leg lockout mechanism according to claim 3, it is characterized in that, described Lock Part (6) also comprises pin (62) vertical substantially with described only lock pin (61) and that captive joint, and described first mounting hole (41) comprises the main aperture (411) that holds described only lock pin (61) and holds the male ports (412) of described pin (62); Described pin (62) is positioned between described annulus and the described fixed supporting leg (4) after rotation, breaks away from described first mounting hole (41) so that prevent the described lock pin (61) that ends.
5. supporting leg lockout mechanism according to claim 4 is characterized in that, described Lock Part (6) also comprises the handle (63) of captiveing joint with described only lock pin (61).
6. according to each described supporting leg lockout mechanism of claim 1 to 5, it is characterized in that the outer end of described second movable supporting legs (3) is provided with second mounting hole (31), the middle part is provided with the 3rd lock hole (32); The middle part of described first movable supporting legs (2) is provided with second lock hole (22), when described first movable supporting legs (2) and described second movable supporting legs (3) stretch out from described fixed supporting leg (4), in described second mounting hole (31) and described second lock hole (22), and the equal described Lock Part of plug-in mounting (6) in described first mounting hole (41) and described the 3rd lock hole (32).
7. supporting leg lockout mechanism according to claim 6 is characterized in that, the size of described first mounting hole (41) and described second mounting hole (31) equates substantially.
8. a portable construction machinery and equipment is characterized in that, comprises as each described supporting leg lockout mechanism of claim 1 to 7.
9. portable construction machinery and equipment according to claim 8 is characterized in that, is specially movable crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202735844U CN201580365U (en) | 2009-11-30 | 2009-11-30 | Movable engineering machinery and supporting leg locking mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202735844U CN201580365U (en) | 2009-11-30 | 2009-11-30 | Movable engineering machinery and supporting leg locking mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201580365U true CN201580365U (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202735844U Expired - Fee Related CN201580365U (en) | 2009-11-30 | 2009-11-30 | Movable engineering machinery and supporting leg locking mechanism thereof |
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| Country | Link |
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| CN (1) | CN201580365U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490695A (en) * | 2011-12-15 | 2012-06-13 | 中联重科股份有限公司 | Slide bar locking mechanism, support leg supporting device and engineering machine |
| CN102079297B (en) * | 2009-11-30 | 2012-09-05 | 徐州重型机械有限公司 | Mobile construction machinery and outrigger locking mechanism thereof |
| CN104884379A (en) * | 2012-08-31 | 2015-09-02 | 普茨迈斯特工程有限公司 | Locking device |
| WO2016146267A1 (en) * | 2015-03-19 | 2016-09-22 | Liebherr-Werk Ehingen Gmbh | Sliding bar for supporting a working machine |
| CN106698214A (en) * | 2016-12-19 | 2017-05-24 | 三帕尔菲格特种车辆装备有限公司 | Movable outrigger locking device, truck crane outrigger and truck crane |
-
2009
- 2009-11-30 CN CN2009202735844U patent/CN201580365U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102079297B (en) * | 2009-11-30 | 2012-09-05 | 徐州重型机械有限公司 | Mobile construction machinery and outrigger locking mechanism thereof |
| CN102490695A (en) * | 2011-12-15 | 2012-06-13 | 中联重科股份有限公司 | Slide bar locking mechanism, support leg supporting device and engineering machine |
| CN104884379A (en) * | 2012-08-31 | 2015-09-02 | 普茨迈斯特工程有限公司 | Locking device |
| CN104884379B (en) * | 2012-08-31 | 2016-10-26 | 普茨迈斯特工程有限公司 | Locking device |
| WO2016146267A1 (en) * | 2015-03-19 | 2016-09-22 | Liebherr-Werk Ehingen Gmbh | Sliding bar for supporting a working machine |
| US10072393B2 (en) | 2015-03-19 | 2018-09-11 | Liebherr-Werk Ehingen Gmbh | Sliding beam for supporting a work machine |
| CN106698214A (en) * | 2016-12-19 | 2017-05-24 | 三帕尔菲格特种车辆装备有限公司 | Movable outrigger locking device, truck crane outrigger and truck crane |
| CN106698214B (en) * | 2016-12-19 | 2019-11-12 | 三一帕尔菲格特种车辆装备有限公司 | Movable supporting legs locking device, lorry-mounted crane supporting leg and lorry-mounted crane |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20131130 |