CN113085797B - Engineering vehicle and vehicle protection device with variable supporting legs - Google Patents
Engineering vehicle and vehicle protection device with variable supporting legs Download PDFInfo
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- CN113085797B CN113085797B CN202110446170.2A CN202110446170A CN113085797B CN 113085797 B CN113085797 B CN 113085797B CN 202110446170 A CN202110446170 A CN 202110446170A CN 113085797 B CN113085797 B CN 113085797B
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- vehicle
- connecting rod
- telescopic
- telescopic part
- protection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/14—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for both lifting and manoeuvring
- B60S9/16—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for both lifting and manoeuvring for operating only on one end of vehicle
- B60S9/18—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for both lifting and manoeuvring for operating only on one end of vehicle mechanically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
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- Engineering & Computer Science (AREA)
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Abstract
The utility model provides a vehicle protector of engineering vehicle and variable landing leg, relate to the vehicle technology field, wherein, the vehicle protector of variable landing leg includes the guard plate, first flexible part, flexible part of second and link mechanism, first flexible part passes through link mechanism and is connected with the guard plate, the bottom and the guard plate of the flexible part of second are connected, and link mechanism's the extension direction is unanimous with the flexible direction of the flexible part of second, the flexible part of second can be around its top swing, first flexible part can drive link mechanism swing and then make link mechanism drive the guard plate upset, thereby the flexible part of second can push away to or pull back the guard plate and make guard plate contact ground or break away from ground. The vehicle protection device with the variable supporting legs is simple in structure, light in weight and low in cost, changes the limitation of single function in the past, has two functions of protection and support, and can be converted in the two functions of protection and support by changing the positions of the protection plates.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a vehicle protection device for an engineering vehicle and a variable supporting leg.
Background
At present, an engineering vehicle is generally provided with telescopic support legs at the bottom, and before engineering operation, the support legs extending downwards are dropped on the ground to support the vehicle to keep an off-ground state, so that the stability of the vehicle during the engineering operation is ensured. In addition, in order to improve the safety of the engineering vehicle during the traveling process, protective plates are usually arranged at the head and the tail of the vehicle to resist the impact force caused by the collision of the front and rear vehicles and the impact force generated when other vehicles are collided. However, the two mechanisms of the existing support leg and the existing protection plate are independent from each other, the support leg and the protection plate cannot be converted, the self weights of the support leg and the protection plate are heavy, the weight of a vehicle body can be increased to a certain extent when the support leg and the protection plate are simultaneously installed on a vehicle, and the material cost of separately adding the two mechanisms is high.
Disclosure of Invention
One of the objectives of the present invention is to provide a variable leg vehicle protection device, which can reduce the weight and save the cost by combining the protection plate structure and the leg structure.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a vehicle protector of variable landing leg, includes guard plate, first flexible part, the flexible part of second and link mechanism, first flexible part passes through link mechanism and is connected with the guard plate, the bottom and the guard plate of the flexible part of second are connected, and link mechanism's the extension direction is unanimous with the flexible direction of the flexible part of second, the flexible part of second can be around its top swing, first flexible part can drive link mechanism swing and then make link mechanism drive the guard plate upset, thereby the flexible part of second can push away to or pull back the guard plate and make guard plate contact ground or break away from ground.
Preferably, the link mechanism comprises a first link, a second link and a third link, the top end of the second link is hinged to the bottom end of the first link, the bottom end of the second link is hinged to the top end of the third link, the bottom end of the third link is hinged to the protection plate, the bottom end of the first telescopic part is hinged to the rod part of the first link, the first link can swing around the top end of the first link, the top end of the first link and the top end of the second telescopic part are located on the same swing axis, a compression spring parallel to the second telescopic part is connected between the second link and the third link, the second telescopic part is connected with an overflow valve for pressure relief, and the overflow valve is opened when the pressure applied to the second telescopic part exceeds a predetermined value to relieve the pressure.
More preferably, the first telescopic member is connected with a first driving device for driving the first telescopic member to rotate, the second telescopic member is connected with a second driving device for driving the second telescopic member to rotate, and under the action of the first driving device and the second driving device, the first telescopic member and the second telescopic member can keep synchronous rotation.
More preferably, the length of the second link is the same as the length of the third link.
More preferably, the axis of the compression spring is aligned with the axis of the first link.
More preferably, the bottom end of the first telescopic member is hinged to the lower half of the rod part of the first connecting rod.
More preferably, the first telescopic part and the second telescopic part are both oil cylinders.
Another object of the present invention is to provide a working vehicle including a vehicle body, and a vehicle guard provided with the variable leg described above, wherein the guard plate is provided on an outer side of an end portion of the vehicle body, the first telescopic member, the second telescopic member and the link mechanism are provided on the end portion of the vehicle body and near a bottom of the vehicle body, and the guard plate is capable of being turned between the outer side of the end portion of the vehicle body and a lower portion of the bottom of the vehicle body.
Preferably, the width of the fender panel is equivalent to the width of a vehicle body.
Compared with the prior art, the invention has the following beneficial effects:
the vehicle protection device with the variable supporting legs is simple in structure, different from a protection plate structure and a supporting leg structure which are independently arranged in the past, the weight of the vehicle protection device is reduced after the vehicle protection device and the supporting leg structure are combined, the material cost of the vehicle protection device is also reduced, the limitation of single function in the past is changed, the vehicle protection device has two functions of protection and support, and the vehicle protection device can be converted in the two functions of protection and support by changing the positions of the protection plates.
Drawings
FIG. 1 is a side view of a vehicle guard of a variable leg in an embodiment in a support state;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a front view of the vehicle guard of the variable leg in an embodiment in a support state;
FIG. 4 is an enlarged schematic view at B of FIG. 3;
FIG. 5 is a front view of the vehicle guard of the variable leg in the embodiment shown in the guarding state;
fig. 6 is an enlarged schematic view at C in fig. 5.
In the figure:
1-protective plate 2-first telescopic part 3-second telescopic part
4-first connecting rod 5-second connecting rod 6-third connecting rod
7-compression spring 8-vehicle body.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Further, in the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not in direct contact, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.
As shown in fig. 1-6, a vehicle protector of variable landing leg, including guard plate 1, first extensible part 2, second extensible part 3 and link mechanism, first extensible part 2 is connected with guard plate 1 through link mechanism, the bottom and the guard plate 1 of second extensible part 3 are connected, and link mechanism's extension direction is unanimous with the flexible direction of second extensible part 3, second extensible part 3 can be around its top swing, first extensible part 2 can drive link mechanism swing and then make link mechanism drive guard plate 1 upset, thereby second extensible part 3 can push away to or pull back guard plate 1 and make guard plate 1 contact ground or break away from ground.
Wherein, link mechanism includes first connecting rod 4, second connecting rod 5 and third connecting rod 6, the top of second connecting rod 5 is articulated with the bottom of first connecting rod 4, the bottom of second connecting rod 5 is articulated with the top of third connecting rod 6, the bottom of third connecting rod 6 is articulated with guard plate 1, the bottom of first extensible part 2 is articulated with the pole portion of first connecting rod 4, first connecting rod 4 can be around its top swing, the top of first connecting rod 4 and the top of second extensible part 3 are in same swing axis, be connected with the compression spring 7 that is on a parallel with second extensible part 3 between second connecting rod 5 and the third connecting rod 6, second extensible part 3 is connected with the overflow valve that is used for the release, realize the release by opening the overflow when the pressure that second extensible part 3 received exceeds the predetermined value.
In this embodiment, the first telescopic member 2 and the second telescopic member 3 are both cylinders, but the first telescopic member 2 and the second telescopic member 3 may be other telescopic members. The overflow valve is arranged at an oil pump outlet of the second telescopic part 3 and is connected to an oil tank through a pipeline, when the second telescopic part 3 is under high pressure and the pressure exceeds a preset value, the oil pressure in the oil pump is too high, partial pressure needs to be relieved, the overflow valve opens the overflow at the moment, redundant oil is discharged back to the oil tank, the pressure relief of the second telescopic part 3 is realized, and the second telescopic part 3 can contract inwards when the protection plate 1 is impacted and the impact force is large. It should be emphasized that the relief valve is a commercially available component, and the arrangement and connection manner thereof are conventional means in the prior art, so that those skilled in the art can perform conventional arrangement thereof, and the detailed description thereof is omitted here.
The vehicle protection device with the variable supporting legs is simple in structure, is different from a protection plate structure and a supporting leg structure which are independently arranged in the past, reduces the weight of the vehicle protection device after the vehicle protection device and the supporting leg structure are combined, reduces the material cost of the vehicle protection device, changes the limitation of single function in the past, has two functions of protection and support, and can convert between the two functions of protection and support by changing the position of the protection plate 1. Moreover, compared with a protection plate structure in common rigid connection, the vehicle protection device provided with the compression spring 7 and the overflow valve and provided with the variable supporting legs has stronger impact resistance, when the protection plate 1 is impacted and the impact force is too large, the overflow valve can overflow, so that the second telescopic part 3 contracts inwards, meanwhile, the compression spring 7 is compressed to absorb impact energy, and therefore the protection plate 1 can better protect an impacted vehicle and a collided vehicle under the dual action of the overflow valve and the compression spring 7.
It should be noted that, in the vehicle protection device with variable support legs, the protection plate 1 can be driven by the first telescopic part 2 to turn over back and forth within a certain angle to change the position, and in the turning process of the protection plate 1, the compression spring 7 and the second telescopic part 3 can synchronously swing with each other, so that the telescopic direction of the compression spring 7 is always consistent with the telescopic direction of the first telescopic part 2, and the first telescopic part 2 can fix the first connecting rod 4 by locking the self state after the protection plate 1 is moved to the right position, and thus the positions of the compression spring 7 and the second telescopic part 3 are locked, the deviation of the telescopic direction of the compression spring 7 caused by the swing of the first connecting rod 4 is avoided, the buffer capacity of the compression spring 7 is prevented from being reduced or even being invalid, so as to ensure that the protection plate 1 in the protection state can be acted by the second telescopic part 3 and the compression spring 7 at the same time, the protection plate 1 has better buffering and energy absorbing capacity. Therefore, under the combined action of the first telescopic part 2, the second telescopic part 3, the link mechanism and the compression spring 7, the vehicle protection device with the variable support legs realizes the quick and effective conversion of the protection plate 1 between the protection function and the supporting function, and has better buffering and energy absorbing functions. In addition, the second link 5 and the third link 6 can move closer to or away from each other under the telescopic action of the second telescopic member 3, thereby forming different degrees of compression on the compression spring 7.
In this embodiment, the first telescopic member 2 is connected with a first driving device for driving the first telescopic member to rotate, the second telescopic member 3 is connected with a second driving device for driving the second telescopic member to rotate synchronously with the first telescopic member 2 and the second telescopic member 3 under the action of the first driving device and the second driving device, so that the synchronism of the rotation of the first telescopic member and the second telescopic member can be ensured, and the rotation efficiency can be improved.
In this embodiment, the length of the second link 5 may be the same as the length of the third link 6, facilitating better expansion and contraction of the compression spring 7. In addition, the axis of the compression spring 7 can be aligned with the axis of the first connecting rod 4, so that the compression stroke of the compression spring 7 can be increased to a greater extent, and the buffering capacity of the compression spring 7 is further improved.
In this embodiment, the bottom end of the first telescopic member 2 can be hinged at the lower half part of the rod part of the first connecting rod 4, so that the first telescopic member 2 can pull the first connecting rod 4 better, and the first telescopic member 2 can be favorable for fixing the first connecting rod 4 better.
The embodiment also provides an engineering vehicle which comprises a vehicle body 8 and is provided with the vehicle protection device with the variable supporting legs, the protection plate 1 is arranged on the outer side of the end part of the vehicle body 8, the first telescopic part 2, the second telescopic part 3 and the connecting rod mechanism are arranged on the end part of the vehicle body 8 and are close to the bottom of the vehicle body 8, and the protection plate 1 can be turned between the outer side of the end part of the vehicle body 8 and the lower side of the bottom of the vehicle body 8.
In practical use, the engineering vehicle provided with the vehicle protection device with the variable support legs can be switched between a protection state and a support state, wherein when the vehicle protection device is in the protection state, the protection plate 1 is driven by the first telescopic part 2 to rotate downwards to the outer side of the end part of the vehicle body 8 and directly faces to the front or the rear of the vehicle body 8 to protect the engineering vehicle, at the moment, the second telescopic part 3 and the compression spring 7 are parallel to the ground, the first telescopic part 2 pulls the first connecting rod 4 and locks the self state, the second telescopic part 3 extends outwards to push the protection plate 1 to be away from the vehicle body 8 and keep a distance with the vehicle body 8, and simultaneously drives the second connecting rod 5 and the third connecting rod 6 to be away from each other to reduce the compressed degree of the compression spring 7, so that when the protection plate 1 is impacted and the impact force is large, the overflow valve overflows to enable the second telescopic part 3 to contract inwards and drive the compression spring 7 to be compressed continuously, and under the combined action of the second telescopic part and the compression spring, the effect of better absorbing impact energy is achieved, and the collision and the collided vehicle are protected; and when engineering vehicle need carry out the engineering operation, can convert this vehicle protector into the support state, earlier with the inside shrink of second extensible part 3 in order to drive guard plate 1 and be close to automobile body 8, avoid guard plate 1 to contact ground in advance in the conversion process, drive link mechanism swing through first extensible part 2 afterwards, and then make link mechanism drive guard plate 1 by the tip outside upset of automobile body 8 to the bottom below of automobile body 8 and be in the ground directly over, then extend second extensible part 3 downwards so that guard plate 1 contacts ground and support the vehicle and be in liftoff state, thereby accomplish the transformation of guard plate 1 to the landing leg.
In addition, the width of the protection plate 1 can be equivalent to the width of the vehicle body 8, the protection range of the protection plate 1 can be increased, and the supporting capacity of the protection plate 1 when being converted into a supporting leg is improved.
Although the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention.
Claims (9)
1. A vehicle protection device of variable leg, characterized in that: the protection plate comprises a protection plate (1), a first telescopic part (2), a second telescopic part (3) and a connecting rod mechanism, wherein the first telescopic part (2) is connected with the protection plate (1) through the connecting rod mechanism, the bottom end of the second telescopic part (3) is connected with the protection plate (1), the extending direction of the connecting rod mechanism is consistent with the telescopic direction of the second telescopic part (3), the second telescopic part (3) can swing around the top end of the second telescopic part, the first telescopic part (2) can drive the connecting rod mechanism to swing so as to drive the connecting rod mechanism to drive the protection plate (1) to turn over, and the second telescopic part (3) can push or pull the protection plate (1) back to enable the protection plate (1) to be in contact with the ground or to be separated from the ground;
when the vehicle protection device is in a protection state, the protection plate (1) rotates downwards to the outer side of the end part of the vehicle body under the driving of the first telescopic part (2) and faces the front or the rear of the vehicle body, so that the engineering vehicle is protected; when engineering vehicle need carry out the engineering operation, convert this vehicle protector into the support state, will earlier second extensible part (3) are inside to be contracted in order to drive guard plate (1) and are close to the automobile body, avoid guard plate (1) to contact ground in advance in the conversion process, then drive link mechanism through first extensible part (2) and swing, and then make link mechanism drive guard plate (1) and overturn to the bottom below of automobile body and be in directly over ground by the tip outside of automobile body, then extend downwards second extensible part (3) so that guard plate (1) contact ground and support the vehicle and be in the liftoff state, thereby accomplish the transition of guard plate (1) to the landing leg.
2. The variable leg vehicle guard of claim 1, wherein: the connecting rod mechanism comprises a first connecting rod (4), a second connecting rod (5) and a third connecting rod (6), the top end of the second connecting rod (5) is hinged to the bottom end of the first connecting rod (4), the bottom end of the second connecting rod (5) is hinged to the top end of the third connecting rod (6), the bottom end of the third connecting rod (6) is hinged to a protection plate (1), the bottom end of a first telescopic part (2) is hinged to the rod part of the first connecting rod (4), the first connecting rod (4) can swing around the top end of the first connecting rod, the top end of the first connecting rod (4) and the top end of a second telescopic part (3) are located on the same swing axis, a compression spring (7) parallel to the second telescopic part (3) is connected between the second connecting rod (5) and the third connecting rod (6), the second telescopic part (3) is connected with an overflow valve for pressure relief, and the overflow valve is opened when the pressure applied to the second telescopic part (3) exceeds a preset value to achieve pressure relief And (6) pressing.
3. The variable leg vehicle guard of claim 1 or 2, wherein: the first telescopic component (2) is connected with a first driving device for driving the first telescopic component to swing, the second telescopic component (3) is connected with a second driving device for driving the second telescopic component to swing, and under the action of the first driving device and the second driving device, the first telescopic component (2) and the second telescopic component (3) can keep synchronously swinging.
4. The variable leg vehicle guard of claim 2, wherein: the length of the second connecting rod (5) is the same as that of the third connecting rod (6).
5. The variable leg vehicle guard of claim 2, wherein: the axis of the compression spring (7) is aligned with the axis of the first link (4).
6. The variable leg vehicle guard of claim 2, wherein: the bottom end of the first telescopic component (2) is hinged to the lower half part of the rod part of the first connecting rod (4).
7. The variable leg vehicle guard of claim 1 or 2, wherein: the first telescopic part (2) and the second telescopic part (3) are both oil cylinders.
8. A work vehicle comprising a vehicle body (8), characterized in that: vehicle protection device provided with a variable leg according to any one of claims 1 to 7, the fender (1) being arranged outside the end of the vehicle body (8), the first telescopic part (2), the second telescopic part (3) and the linkage being arranged at the end of the vehicle body (8) and near the bottom of the vehicle body (8), the fender (1) being tiltable between outside the end of the vehicle body (8) and below the bottom of the vehicle body (8).
9. The work vehicle of claim 8, wherein: the width of the protection plate (1) is equivalent to that of the vehicle body (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446170.2A CN113085797B (en) | 2021-04-25 | 2021-04-25 | Engineering vehicle and vehicle protection device with variable supporting legs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110446170.2A CN113085797B (en) | 2021-04-25 | 2021-04-25 | Engineering vehicle and vehicle protection device with variable supporting legs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113085797A CN113085797A (en) | 2021-07-09 |
| CN113085797B true CN113085797B (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110446170.2A Active CN113085797B (en) | 2021-04-25 | 2021-04-25 | Engineering vehicle and vehicle protection device with variable supporting legs |
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| CN (1) | CN113085797B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982371A (en) * | 2021-11-23 | 2022-01-28 | 徐州博汇世通重工机械有限责任公司 | Automatic road administration construction protection system laying engineering vehicle and use method |
| CN116291194B (en) * | 2023-04-10 | 2023-09-01 | 烟台金海岸地质勘探有限公司 | Folding drilling device for geological exploration |
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| CN210027327U (en) * | 2019-03-08 | 2020-02-07 | 河北安鑫专用汽车制造有限公司 | Trailer with rear protection device |
| CN210437125U (en) * | 2019-08-02 | 2020-05-01 | 西华大学 | Novel two-stage type protective fence at tail of truck |
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2021
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| CA2708815A1 (en) * | 2010-07-06 | 2012-01-06 | Kenneth L. Macdougall | Trailer flip-down leg caster wheel and foot jack |
| DE202010008603U1 (en) * | 2010-09-22 | 2010-11-18 | Rmm Metternich Mechatronik Gmbh | Support leg device for semi-trailer or the like |
| CN202115483U (en) * | 2011-05-18 | 2012-01-18 | 三一汽车起重机械有限公司 | Engineering vehicle, swing landing leg and lock mechanism of swing landing leg |
| CN204701573U (en) * | 2015-06-25 | 2015-10-14 | 陕西通力专用汽车有限责任公司 | Turnover automobile-used side guard rail and engineering truck |
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| CN210437125U (en) * | 2019-08-02 | 2020-05-01 | 西华大学 | Novel two-stage type protective fence at tail of truck |
| CN110696785A (en) * | 2019-11-19 | 2020-01-17 | 长沙中联恒通机械有限公司 | Supporting mechanism and operation vehicle with same |
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| Publication number | Publication date |
|---|---|
| CN113085797A (en) | 2021-07-09 |
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