CN211545752U - Landing leg is accomodate with being convenient for to hoist - Google Patents
Landing leg is accomodate with being convenient for to hoist Download PDFInfo
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- CN211545752U CN211545752U CN202020026133.7U CN202020026133U CN211545752U CN 211545752 U CN211545752 U CN 211545752U CN 202020026133 U CN202020026133 U CN 202020026133U CN 211545752 U CN211545752 U CN 211545752U
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- telescopic rod
- leg
- rod
- oil cylinder
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 25
- 230000000670 limiting effect Effects 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 2
- 244000208734 Pisonia aculeata Species 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a landing leg convenient for storage for a crane, which comprises a main transverse arm; the main cross arm is telescopically connected with a crane body; the lower side of the main cross arm is provided with a groove; an electric telescopic rod and an annular telescopic rod are arranged in the groove; the top end of the electric telescopic rod is hinged with the inner wall of the groove; the bottom end of the electric telescopic rod is hinged with a leg supporting rod; the leg supporting rod is provided with a slide rail; the top end of the annular telescopic rod is fixedly connected with the inner wall of the groove through an L-shaped sheet; the bottom end of the annular telescopic rod is connected with a sliding rail in a sliding manner; the bottom end of the leg supporting rod is provided with a ball hinge; the lower end of the ball hinge is hinged with a supporting leg base; the right end of the main cross arm is fixedly connected with a hydraulic oil cylinder; the direction of the hydraulic oil cylinder faces downwards; the output end of the hydraulic oil cylinder is provided with a limit arc plate; the shape of the limiting arc plate is the same as the shape of the cross section of the supporting leg rod; when the crane is not used, the supporting legs can be inwards turned and stored, and the space is not occupied; when the hydraulic lifting device is used, the acting force of the bottom surface on the supporting legs can still be transmitted to the hydraulic oil cylinder and the main cross arm, so that the safety is further improved.
Description
Technical Field
The utility model relates to a hoist technical field, concretely relates to landing leg is accomodate with convenient to hoist.
Background
The support legs are important components of the crane, and are mainly used for supporting the frame after being connected with the frame; the supporting leg type of the crane is mainly divided into two types, one type is H-shaped, when the crane works, the supporting legs positioned at the front section and the rear end of the frame respectively extend towards two sides and are H-shaped when viewed from above; one type is X-shaped, when the crane works, the supporting legs at two sides of the frame respectively swing out towards two sides, and the shape of the X is seen from the top; however, no matter what the structure form of the supporting legs is, the final function of the supporting legs is to transmit the force of the whole crane to the ground through the supporting legs during the operation of the crane, support the frame and ensure the safety and stability of the whole crane during the operation of the crane; the existing crane has the defects that the sizes of all parts are large, the residual space of the whole crane is small, the H-shaped and X-shaped supporting legs cannot be completely stored during storage, the occupied space is large, and the supporting legs cannot pass through a narrow section easily, so that the existing requirements are not met; at present, the support legs are contracted through inward turning, but the support legs are connected with the connecting beam through hinges, so that most of acting force given to the support legs by the bottom surface is transmitted to the hinges during use, and the support legs are easy to damage or even break.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical problem, the utility model provides a landing leg is accomodate with convenient to crane, accomodates the convenience, reduces the area that occupies one's space.
The utility model provides a technical scheme that its technical problem adopted is: a landing leg convenient to store for a crane comprises a main cross arm; the main cross arm is telescopically connected with a crane body; the lower side of the main cross arm is provided with a groove; an electric telescopic rod and an annular telescopic rod are arranged in the groove; the top end of the electric telescopic rod is hinged with the inner wall of the groove; the bottom end of the electric telescopic rod is hinged with a leg supporting rod; the leg supporting rod is provided with a slide rail; the top end of the annular telescopic rod is fixedly connected with the inner wall of the groove; the bottom end of the annular telescopic rod is connected with a sliding rail in a sliding manner; the bottom end of the leg supporting rod is provided with a ball hinge; the lower end of the ball hinge is hinged with a supporting leg base; the right end of the main cross arm is fixedly connected with a hydraulic oil cylinder; the direction of the hydraulic oil cylinder faces downwards; the output end of the hydraulic oil cylinder is provided with a limit arc plate; the electric telescopic rod rotates the supporting leg rod to the lower side of the hydraulic oil cylinder, and under the limiting action of the annular telescopic rod, the upper end of the supporting leg rod is aligned with the lower end of the hydraulic oil cylinder; the shape of the limiting arc plate is the same as the shape of the cross section of the supporting leg rod; the specific circuit structures of the electric telescopic rod and the hydraulic oil cylinder belong to the prior art in the field, and are not described in detail herein.
Further, the movable length of the annular telescopic rod is a quarter of the circumference; the height of the first section of telescopic port of the annular telescopic rod is equal to the lower end of the main cross arm.
Further, the inner circle area of the limiting arc plate is larger than the cross section area of the leg rod.
The utility model has the advantages that when the crane is not used, the supporting legs can be turned inwards to be stored, and the space is not occupied; when the hydraulic lifting device is used, the acting force of the bottom surface on the supporting legs can still be transmitted to the hydraulic oil cylinder and the main cross arm, so that the safety is further improved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the present invention in use.
In the figure: 1. the device comprises a main cross arm, 2 grooves, 3 electric telescopic rods, 4 annular telescopic rods, 5 supporting leg rods, 6 sliding rails, 7 ball hinges, 8 supporting leg bases, 9 hydraulic cylinders and 10 limiting arc plates.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, the present embodiment provides a landing leg for a crane, which includes a main cross arm 1; the main cross arm 1 is telescopically connected with a crane body; a groove 2 is arranged at the lower side of the main cross arm 1; an electric telescopic rod 3 and an annular telescopic rod 4 are arranged in the groove 2; the top end of the electric telescopic rod 3 is hinged with the inner wall of the groove 2; the bottom end of the electric telescopic rod 3 is hinged with a leg supporting rod 5; the electric telescopic rod 3 controls the leg supporting rod 5 to move along the telescopic direction of the annular telescopic rod 4; the leg supporting rod 5 is connected with a slide rail 6 through a screw; the top end of the annular telescopic rod 4 is fixedly connected with the inner wall of the groove 2; the bottom end of the annular telescopic rod 4 is connected with a sliding rail 6 in a sliding way; if the length of the leg support rod 5 is insufficient in the case of a road condition with a complex working environment, the hydraulic oil cylinder 9 moves the leg support rod 5 downwards, and one end of the annular telescopic rod 4 moves on the slide rail 6, so that the situation that the leg support rod 5 moves to pull the annular telescopic rod 4 and further fracture is possible is avoided; the bottom end of the leg supporting rod 5 is provided with a ball hinge 7; the lower end of the ball hinge 7 is hinged with a supporting leg base 8; the right end of the main cross arm 1 is fixedly connected with a hydraulic oil cylinder 9; the direction of the hydraulic oil cylinder 9 is downward; the output end of the hydraulic oil cylinder 9 is connected with a limiting arc plate 10 through a screw; the electric telescopic rod 3 rotates the leg supporting rod 5 to the lower side of the hydraulic oil cylinder 9, and under the limiting action of a certain expansion degree of the annular telescopic rod 4, the upper end of the leg supporting rod 5 is aligned with the lower end of the hydraulic oil cylinder 9; the shape of the limiting arc plate 10 is the same as the cross section shape of the leg rod 5; the specific circuit structures of the electric telescopic rod 3 and the hydraulic oil cylinder 9 belong to the prior art in the field, and are not described in detail herein.
The movable length of the annular telescopic rod 4 is a quarter of the circumference; the height of a first section of telescopic port of the annular telescopic rod 4 is equal to the lower end of the main cross arm 1; after the leg bar 5 is stored, the leg bar 5 can be brought close to the main crossbar 1, and the occupied space is reduced.
The inner circle area of the limiting arc plate 10 is larger than the cross section area of the leg rod 5; when the hydraulic oil cylinder 9 extends, the supporting leg rod 5 can enter the limiting arc plate 10, and shaking is avoided in the working process.
When the utility model is used, the electric telescopic rod 3 is controlled to move the leg supporting rod 5, the leg supporting rod 5 moves down to the lower end of the hydraulic oil cylinder 9 under the limiting action of the annular telescopic rod 4, the output end of the hydraulic oil cylinder 9 is controlled to move down, the upper end of the leg supporting rod 5 enters the limiting arc plate 10, and the hydraulic oil cylinder 9 further moves down until the vehicle body is stable; when accomodating, earlier with hydraulic cylinder 9 recovery normal position, rethread electric telescopic handle 3 with the landing leg pole 5 pull-back, after the pull-back finishes, electric telescopic handle 3 and cyclic annular 4 flexible poles are located recess 2, and landing leg pole 5's position is close to main xarm 1, has saved the usage space.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (3)
1. A landing leg convenient to store for a crane comprises a main cross arm (1); the main cross arm (1) is telescopically connected with a crane body; the method is characterized in that: a groove (2) is arranged at the lower side of the main cross arm (1); an electric telescopic rod (3) and an annular telescopic rod (4) are arranged in the groove (2); the top end of the electric telescopic rod (3) is hinged with the inner wall of the groove (2); the bottom end of the electric telescopic rod (3) is hinged with a leg supporting rod (5); a sliding rail (6) is arranged on the supporting leg rod (5); the top end of the annular telescopic rod (4) is fixedly connected with the inner wall of the groove (2); the bottom end of the annular telescopic rod (4) is connected with a sliding rail (6) in a sliding way; the bottom end of the leg supporting rod (5) is provided with a ball hinge (7); the lower end of the ball hinge (7) is hinged with a supporting leg base (8); the right end of the main cross arm (1) is fixedly connected with a hydraulic oil cylinder (9); the direction of the hydraulic oil cylinder (9) is downward; the output end of the hydraulic oil cylinder (9) is provided with a limit arc plate (10); the shape of the limiting arc plate (10) is the same as the cross section shape of the leg rod (5).
2. The crane leg of claim 1, further comprising: the movable length of the annular telescopic rod (4) is one quarter of the circumference; the height of the first section of telescopic port of the annular telescopic rod (4) is equal to the lower end of the main cross arm (1).
3. The crane leg of claim 1, further comprising: the area of the inner circular surface of the limiting arc plate (10) is larger than the cross section area of the leg rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020026133.7U CN211545752U (en) | 2020-01-07 | 2020-01-07 | Landing leg is accomodate with being convenient for to hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020026133.7U CN211545752U (en) | 2020-01-07 | 2020-01-07 | Landing leg is accomodate with being convenient for to hoist |
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| Publication Number | Publication Date |
|---|---|
| CN211545752U true CN211545752U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020026133.7U Active CN211545752U (en) | 2020-01-07 | 2020-01-07 | Landing leg is accomodate with being convenient for to hoist |
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| CN (1) | CN211545752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595816A (en) * | 2020-12-11 | 2021-04-02 | 侯绍亭 | Bridge crack detection device and using method thereof |
-
2020
- 2020-01-07 CN CN202020026133.7U patent/CN211545752U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595816A (en) * | 2020-12-11 | 2021-04-02 | 侯绍亭 | Bridge crack detection device and using method thereof |
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Effective date of registration: 20240727 Address after: No. 8, 4th Floor, Unit 1, Building 2, No. 19 Caotang Road, Qingyang District, Chengdu City, Sichuan Province 610000 Patentee after: Ran Chengrui Country or region after: China Address before: 272059 Quliu Village East, Anju Street, Rencheng District, Jining City, Shandong Province Patentee before: JINING LIANGJIE INDUSTRY & TRADE Co.,Ltd. Country or region before: China |