CN218198226U - Contraction type supporting leg structure and engineering vehicle - Google Patents
Contraction type supporting leg structure and engineering vehicle Download PDFInfo
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- CN218198226U CN218198226U CN202222855550.4U CN202222855550U CN218198226U CN 218198226 U CN218198226 U CN 218198226U CN 202222855550 U CN202222855550 U CN 202222855550U CN 218198226 U CN218198226 U CN 218198226U
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Abstract
The utility model belongs to the technical field of auxiliary structure of engineering machinery, and discloses a retractable landing leg structure, which comprises a first box body, a second box body, a landing leg box body and a telescopic rod; the first box body is fixedly arranged; the second box body is in sliding connection with the first box body at the inner side of the first box body; the supporting leg box body is arranged on the inner side of the second box body and is hinged with the second box body; one end of the telescopic rod is hinged with the first box body, and the other end of the telescopic rod is hinged with the supporting leg box body; the telescopic rod is switched from a contraction state to a stretching state so as to drive the supporting leg box body to rotate from a first position to a second position. The utility model discloses can solve the landing leg structure and occupy great space in equipment to and influence the problem of equipment trafficability characteristic. The utility model also discloses an engineering vehicle of having above-mentioned contraction type landing leg structure.
Description
Technical Field
The utility model belongs to the technical field of engineering machine tool auxiliary structure, especially, relate to a contraction type landing leg structure, engineering vehicle.
Background
In various engineering machinery equipment, in order to ensure the stability of the equipment in the construction process, a supporting leg structure is often used, and in part of equipment with wider construction range, supporting legs need to be extended out of the equipment range so as to achieve better supporting effect.
The overall dimension of this kind of landing leg is huge relatively, accomplishes the construction back at equipment, when retrieving to equipment inside, occupies great space, and landing leg ground clearance is less, influences the trafficability characteristic of equipment.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a retractable landing leg structure can solve the landing leg structure and occupy great space in equipment to and influence the problem of equipment trafficability characteristic. The utility model also discloses an engineering vehicle of having above-mentioned retractable landing leg structure.
The utility model discloses a concrete technical scheme as follows:
a collapsible leg structure comprising:
the first box body is fixedly arranged;
the second box body is connected with the first box body in a sliding manner at the inner side of the first box body;
the supporting leg box body is arranged on the inner side of the second box body and is hinged with the second box body; and
one end of the telescopic rod is hinged with the first box body, and the other end of the telescopic rod is hinged with the supporting leg box body;
the telescopic rod is switched from a contraction state to a stretching state so as to drive the supporting leg box body to rotate from a first position to a second position.
The telescopic link can drive the second box and slide for first box, and when the second box reached preset position, the rectilinear motion of second box changed the rotary motion of landing leg box into to expand the use from the position of accomodating for the landing leg box.
Preferably, a limiting block is arranged at one end, far away from the first box body, of the second box body, and the limiting block is hinged with the supporting leg box body; when the landing leg box body is located at the second position, the landing leg box body is attached to the limiting block.
The limiting block can limit the rotation of the landing leg box body so as to prevent the landing leg box body from being in transitional rotation and being incapable of playing a stable supporting role; when the landing leg box body is attached to the limiting block, the supporting stability of the landing leg box body can be better ensured.
Preferably, the device further comprises a first pin; one end of the first pin sequentially penetrates through the second box body and the limiting block and is detachably connected with the supporting leg box body.
When landing leg box and stopper laminating, through the position of the firm supporting component that first pin can be better.
Preferably, the method further comprises the following steps:
the second pin is used for enabling the second box body to slide to a preset position of the first box body and penetrate through the side wall of the first box body to extend into the second box body;
wherein the leg housing ejects the second pin out of the second housing when the leg housing is rotated from the second position to the first position.
When the second box body slides to the preset position, the second pin extends into the second box body, the second box body is static relative to the first box body, and the telescopic rod continues to extend to realize the rotary driving of the supporting leg box body; when the telescopic rod is retracted, the supporting leg box body ejects the second pin out of the second box body, so that the second box body can slide relative to the first box body, and the second box body is retracted and stored.
Preferably, the second box body is provided with an opening for the leg box body to rotate from the opening to the second position.
The supporting leg box body has a certain length when being in a storage state, so that if the supporting leg box body is required to rotate from a first position to a second position, a rotating space is reserved for the supporting leg box body.
Preferably, the leg box includes:
the third box body is hinged with the second box body, and the third box body is hinged with the telescopic rod;
the supporting legs are arranged on the inner side of the third box body and are in sliding connection with the third box body; and
and the power source is used for driving the support leg and the third box body to slide relatively.
The supporting leg box body is a telescopic assembly, and the power source drives the supporting leg to move relative to the third box body so as to enable the supporting leg to move to a supporting position.
A work vehicle comprising a retractable leg construction as described above.
When the engineering vehicle is provided with the retractable supporting leg structure, the auxiliary support of the engineering vehicle can be well realized by using the supporting leg structure, so that the engineering vehicle can stably complete construction operation.
Compared with the prior art, the utility model can realize the storage and expansion of the landing leg structure, can reasonably utilize the installation space of the engineering vehicle to avoid occupying the external space of the engineering vehicle, and does not influence the trafficability characteristic of the vehicle after the landing leg structure is collected into the engineering vehicle; after the supporting leg structure is put into the engineering vehicle, no gap exists between the supporting leg structure and the ground, so that the climbing of the engineering vehicle is not influenced; in addition, the supporting leg structure can be retracted into the engineering vehicle, so that various components of the supporting leg structure can be protected to a certain extent.
Drawings
Fig. 1 is a schematic view of an initial state of an embodiment of the present invention;
fig. 2 is a schematic view of the second casing located at the first position in the embodiment of the present invention;
fig. 3 is a schematic view of the second casing located at the second position in the embodiment of the present invention;
fig. 4 is a schematic view of a supporting state according to an embodiment of the present invention.
In the figure: 1-a first box; 2-a second box body; 3-a supporting leg box body; 31-a third box; 32-support legs; 4, a telescopic rod; 5-a limiting block; 6-a first pin; 7-a second pin; 8-opening.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the specific embodiments.
The retractable supporting leg structure disclosed by the embodiment is used for engineering vehicles, particularly tunnel construction engineering vehicles, and the engineering vehicles can completely take the supporting leg structure into the engineering vehicles.
As shown in fig. 1 to 4, a retractable leg structure comprises a first box body 1, a second box body 2, a leg box body 3 and an expansion link 4; the first box body 1 is fixedly arranged; the second box body 2 is connected with the first box body 1 in a sliding way at the inner side of the first box body 1; the supporting leg box body 3 is arranged on the inner side of the second box body 2, and the supporting leg box body 3 is hinged with the second box body 2; one end of the telescopic rod 4 is hinged with the first box body 1, and the other end of the telescopic rod is hinged with the supporting leg box body 3; the telescopic rod 4 is switched from a contraction state to a stretching state so as to drive the supporting leg box body 3 to rotate from the first position to the second position.
The first box body 1 can be welded in the engineering vehicle, and can also be detachably connected with the engineering vehicle through parts such as fixing pieces, clamping pieces and the like.
In this embodiment, the first casing 1 is horizontally disposed, so that the second casing 2 is slidably connected to the first casing 1 in a horizontal plane, and thus, it can be understood that when the leg casing 3 is located at the first position, the axis of the leg casing 3 is parallel to the axis of the first casing 1, and when the leg casing 3 is located at the second position, there is a certain angle between the axis of the leg casing 3 and the axis of the first casing 1.
Generally, the angle is 90 ° in order to achieve auxiliary support of the work vehicle by the leg box 3.
For better use this embodiment, the second box 2 is equipped with stopper 5 in the one end of keeping away from first box 1, stopper 5 is articulated with landing leg box 3. As shown in fig. 3 and 4, when the leg box 3 is located at the second position, the upper side of the leg box 3 is attached to the limit block 5, and at this time, the axis of the leg box 3 and the axis of the second box 2 are kept at 90 °, so that the supporting effect is better ensured.
In this embodiment, the limiting block 5 is located at the left end of the second box body 2, and the hinge point between the limiting block 5 and the leg box body 3 is located at the right end of the limiting block 5. The support effect of the leg box 3 is optimal when the axis of the leg box 3 is perpendicular to the axis of the second box 2.
For better use of the present embodiment, a first pin 6 is also included; one end of the first pin 6 sequentially penetrates through the second box body 2 and the limiting block 5 and is detachably connected with the supporting leg box body 3.
When the supporting leg box body 3 is located at the second position, namely the supporting leg box body 3 rotates to the right position at the moment, the axis of the supporting leg box body 3 keeps 90 degrees with the axis of the second box body 2, and at the moment, the requirement for positioning and keeping can be well met by the first pin 6. It can be understood that the second box 2 has a first pin hole, the stopper 5 has a second pin hole corresponding to the first pin hole, and the leg box 3 has a third pin hole corresponding to the first pin hole and the second pin hole, and the third pin hole is a blind hole.
In order to better use the embodiment, the device further comprises a second pin 7, wherein the second pin is used for enabling the second box body 2 to slide to a preset position of the first box body 1 and penetrate through the side wall of the first box body 1 to extend into the second box body 2; when the leg box 3 is rotated from the second position to the first position, the leg box 3 ejects the second pin 7 out of the second box 2.
The first case 1 has a fourth pin hole, and the second case 2 also has a fifth pin hole. When the telescopic rod 4 starts the second box body 2 to move and reaches a preset position, namely the position of the second pin 7, the second pin 7 penetrates through the fourth pin hole and extends into the fifth pin hole, so that the second box body 2 cannot move continuously, and at the moment, the telescopic rod 4 continues to move, and the supporting leg box body 3 can be driven to rotate.
For a better use of the embodiment, the second casing 2 is provided with an opening 8 for the leg casing 3 to be rotated from the opening 8 to the second position.
When the embodiment is used specifically, the second box 2 cannot completely exit the first box 1, and therefore, a part of the second box 2 is always located inside the first box 1, and therefore, when the landing leg box 3 is located outside the first box 1, the rotation can be realized through the opening 8 formed in the second box 2.
In a further embodiment, the first housing 1 is further provided with an opening, in which case, when the second housing 2 reaches the predetermined position, the leg housing 3 still has a portion inside the first housing 1, and in this case, only the first housing 1 is provided with another opening, so that the leg housing 3 can be rotated.
For better use of the present embodiment, the leg box 3 comprises a third box 31, a support leg 32 and a power source; the third box body 31 is hinged with the second box body 2, and the third box body 31 is hinged with the telescopic rod 4; the support leg 32 is arranged inside the third box 31, and the support leg 32 is connected with the third box 31 in a sliding manner; the power source is used for driving the support leg 32 and the third box 31 to slide relatively.
In this embodiment, the third pin hole is provided in the third casing 31. The power source is a telescopic cylinder, i.e. the movement of the support leg 32 is realized by the push-pull of the telescopic cylinder.
In some embodiments, the power source may also be an electric motor, and the support legs 32 are driven by a rack-and-pinion mechanism. Namely, the fixed end of the motor is connected with the supporting leg 32, and the driving end of the motor is provided with a gear; a rack is provided in the third casing 31. Therefore, when the motor acts, the supporting legs 32 climb on the rack through the gears, at the moment, in order to guarantee climbing stability, the number of the gears is not less than three, and the gears rotate synchronously. On the basis of this, in a further embodiment, the support legs 32 are also provided with rollers, i.e. the climbing stability is further ensured by the rollers, in which embodiment only one or two gears may be provided.
Thus, when the present embodiment is used for auxiliary support, the first casing 1 is provided inside the working vehicle. The telescopic rod 4 is driven to enable the second box body 2 to slide relative to the first box body 1 and finally slide to the position where the second pin 7 is located, the second pin 7 limits the second box body 2 to move, at the moment, the telescopic rod 4 continues to extend, the supporting leg box body 3 is driven to rotate from the first position to the second position until the supporting leg box body is attached to the limiting block 5, and the position stability of the supporting leg box body 3 is ensured by the first pin 6. The third box 31 is then kept still and the power source is activated to drive the support legs 32 downwards until they interfere with the support surface.
During recovery, the power source is started, the supporting legs 32 are recovered to the inside of the supporting box body 3, and then the second pin 7 is taken down; then the telescopic rod 4 pulls the third box body 31 to rotate from the second position to the first position, at this time, the third box body 31 pushes the second pin 7 out of the second box body 2, so that the second box body 2 can realize relative sliding with the first box body 1, and further, in the process of retracting the telescopic rod 4, the second box body 2 is integrally accommodated in the first box body 1.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.
Claims (7)
1. A collapsible leg structure, comprising:
the first box body is fixedly arranged;
the second box body is connected with the first box body in a sliding manner at the inner side of the first box body;
the supporting leg box body is arranged on the inner side of the second box body and is hinged with the second box body; and
one end of the telescopic rod is hinged with the first box body, and the other end of the telescopic rod is hinged with the supporting leg box body;
the telescopic rod is switched from a contraction state to a stretching state so as to drive the supporting leg box body to rotate from a first position to a second position.
2. The retractable leg structure as claimed in claim 1, wherein a limiting block is provided at an end of the second box body away from the first box body, and the limiting block is hinged with the leg box body;
when the landing leg box body is located at the second position, the landing leg box body is attached to the limiting block.
3. A collapsible leg construction according to claim 2, further comprising:
first pin, second box, stopper are passed in proper order to the one end of first pin to can dismantle with the landing leg box and be connected.
4. A collapsible leg construction as claimed in claim 1, further comprising:
the second pin is used for enabling the second box body to slide to a preset position of the first box body and penetrate through the side wall of the first box body to extend into the second box body;
wherein the leg housing ejects a second pin out of a second housing when the leg housing rotates from a second position to a first position.
5. A collapsible leg structure as claimed in claim 1, wherein said second housing is provided with an opening for rotation of said leg housing from the opening to the second position.
6. A collapsible leg structure as claimed in any one of claims 1 to 5, wherein the leg casing comprises:
the third box body is hinged with the second box body, and the third box body is hinged with the telescopic rod;
the supporting legs are arranged on the inner side of the third box body and are in sliding connection with the third box body; and
and the power source is used for driving the support leg and the third box body to slide relatively.
7. Work vehicle, characterized in that it comprises a retractable leg construction according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222855550.4U CN218198226U (en) | 2022-10-27 | 2022-10-27 | Contraction type supporting leg structure and engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222855550.4U CN218198226U (en) | 2022-10-27 | 2022-10-27 | Contraction type supporting leg structure and engineering vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218198226U true CN218198226U (en) | 2023-01-03 |
Family
ID=84644296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222855550.4U Active CN218198226U (en) | 2022-10-27 | 2022-10-27 | Contraction type supporting leg structure and engineering vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218198226U (en) |
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2022
- 2022-10-27 CN CN202222855550.4U patent/CN218198226U/en active Active
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