CN210594956U - Landing leg grounding state detection device of miniature crane - Google Patents
Landing leg grounding state detection device of miniature crane Download PDFInfo
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- CN210594956U CN210594956U CN201921013661.2U CN201921013661U CN210594956U CN 210594956 U CN210594956 U CN 210594956U CN 201921013661 U CN201921013661 U CN 201921013661U CN 210594956 U CN210594956 U CN 210594956U
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Abstract
The utility model discloses a landing leg grounding state detection device of a miniature crane, which comprises a landing leg connecting plate fixedly arranged on the outer side of the lower part of a crane landing leg, a landing leg grounding seat arranged on the inner side of the upper end of the crane landing leg, and a travel switch fixedly connected with the outer side of the landing leg grounding seat through a travel switch connecting plate; a sliding chute is arranged in the landing leg grounding seat, a compression spring is arranged in the sliding chute, the inner end of the compression spring is connected with a grounding firing pin corresponding to the travel switch, and the outer end of the compression spring is connected with a grounding ejector rod; the other end of the grounding ejector rod is connected with a support leg connecting frame, the lower portion of the support leg connecting frame is rotatably connected with the support leg connecting plate through a support leg rotating shaft, and the outer side of the bottom of the support leg connecting frame is connected with support legs through support leg rotating shafts. The utility model discloses but the landing leg ground state that the real-time detection jack-up in-process appears because of the suspended load to avoid appearing the incident such as unstability, toppling, ensure the safety of jack-up operation.
Description
Technical Field
The utility model relates to a crane equipment technical field, concretely relates to miniature crane's landing leg ground state detection device.
Background
When the hoisting operation of the miniature crane is performed, the supporting legs need to be unfolded and effectively grounded to perform the hoisting operation, and when the supporting legs are not effectively grounded, the hoisting operation is started, so that potential safety hazards such as instability, overturning and the like can appear.
The existing crane is not well controlled whether the supporting legs are grounded in the hoisting operation process, manual inspection is needed, manpower and inspection time are wasted, the working efficiency is low, and the process is complex.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at the not enough of prior art, provide one kind can be used for the real-time supervision landing leg state, need not artifical inspection, improve hoist efficiency of construction, increase the landing leg ground state detection device of the miniature hoist of job site security.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a landing leg grounding state detection device of a miniature crane comprises a landing leg connecting plate fixedly arranged on the outer side of the lower part of a crane landing leg, a landing leg grounding seat arranged on the inner side of the upper end of the crane landing leg, and a travel switch fixedly connected with the outer side of the landing leg grounding seat through a travel switch connecting plate; a sliding chute is arranged in the landing leg grounding seat, a compression spring is arranged in the sliding chute, the inner end of the compression spring is connected with a grounding firing pin corresponding to the travel switch, and the outer end of the compression spring is connected with a grounding ejector rod; the other end of the grounding ejector rod is connected with a support leg connecting frame, the lower portion of the support leg connecting frame is rotatably connected with the support leg connecting plate through a support leg rotating shaft, and the outer side of the bottom of the support leg connecting frame is connected with support legs through support leg rotating shafts.
According to the technical scheme, the travel switch is used for detecting the grounding state of the supporting leg, the position of the grounding firing pin relative to the travel switch is changed by the supporting leg through the self state, when the supporting leg is in a natural sagging state, the supporting leg drives the supporting leg connecting frame to rotate clockwise around a supporting leg rotating shaft, so that the upper end of the supporting leg connecting frame drives the grounding ejector rod to move outwards, the grounding firing pin is stretched by the compression spring to move outwards, the grounding firing pin is separated from the proximity switch, and the proximity switch judges the grounding condition of the supporting leg through the position relation of the grounding firing pin; when the supporting leg is grounded, the supporting leg is positioned on the ground, the supporting leg connecting frame generates upward thrust relative to the supporting leg, presses the grounding ejector rod to move inwards, and presses the compression spring to push the grounding striker out to be contacted with the proximity switch; the spout makes things convenient for the removal of ground connection ejector pin.
Preferably, the length of the legs is greater than the height thereof.
Preferably, the support leg connecting frame is in an L-shaped structure. The structure can be more beneficial to the rotation of the support leg connecting frame driven by the support legs, so that the device is more flexible.
Preferably, one end of the grounding ejector rod is positioned in the sliding groove, and the other end of the grounding ejector rod is positioned outside the sliding groove.
Preferably, a guide rail for guiding the grounding striker to slide is arranged on the side wall of the inner end of the grounding seat of the support leg, and the grounding striker is positioned in the guide rail. The device has a guiding function, avoids the deviation of the grounding firing pin in the moving process and ensures that the device has better accuracy.
Preferably, when the crane leg is grounded, the grounding striker is in contact with the travel switch.
The utility model has the advantages that:
the utility model discloses can make things convenient for the validity that detects the landing leg before the hoist operation and support, also can real-time detection jack-up in-process simultaneously because of the landing leg ground state that the suspended load appears to avoid appearing the incident such as unstability, toppling, ensure jack-up operation's safety.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure: 1. the landing leg 2, the supporting leg connecting frame 3, the supporting leg rotating shaft 4, the supporting leg 5, the supporting leg rotating shaft 6, the grounding ejector rod 7, the landing leg grounding seat 8, the grounding striker 9, the travel switch connecting plate 10, the travel switch 11, the landing leg connecting plate 12, the compression spring 13 and the guide rail.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1 and 2, a landing leg grounding state detection device of a micro crane comprises a landing leg connecting plate fixedly arranged on the outer side of the lower part of a crane landing leg, a landing leg grounding seat arranged on the inner side of the upper end of the crane landing leg, and a travel switch fixedly connected with the outer side of the landing leg grounding seat through a travel switch connecting plate, wherein the travel switch is connected with a controller on the crane; a sliding groove is formed in the landing leg grounding seat, a compression spring is arranged in the sliding groove, the inner end of the compression spring is connected with a grounding firing pin corresponding to the travel switch, the outer end of the compression spring is connected with a grounding ejector rod, one end of the grounding ejector rod is located in the sliding groove, and the other end of the grounding ejector rod is located outside the sliding groove; and a guide rail for guiding the grounding striker to slide is arranged on the side wall of the inner end of the landing leg grounding seat, and the grounding striker is positioned in the guide rail. When the crane supporting leg is grounded, the grounding firing pin is just in contact with the travel switch.
The other end of the grounding ejector rod is connected with a support leg connecting frame, and the support leg connecting frame is of an L-shaped structure; the lower part of the support leg connecting frame is rotatably connected with the support leg connecting plate through a support leg rotating shaft, the outer side of the bottom of the support leg connecting frame is connected with support legs through support leg rotating shafts, and the length of each support leg is larger than the height of each support leg.
The utility model discloses a theory of operation:
when the crane supporting leg is not grounded: the stabilizer blade is the natural state that droops, and the stabilizer blade drives the stabilizer blade link and rotates around the landing leg pivot clockwise to make stabilizer blade link upper end drive ground connection ejector pin and outwards remove, and then outwards remove through the tensile ground connection firing pin of compression spring, make ground connection firing pin and proximity switch separately, then proximity switch sends detached signal for the controller and is used for showing that the landing leg is ungrounded.
When the crane supporting leg is grounded; the supporting leg is located on the ground, the supporting leg connecting frame can generate upward thrust relative to the supporting leg, the grounding ejector rod is pressed to move inwards, the grounding striker is pushed out to be in contact with the proximity switch by pressing the compression spring, and then the proximity switch sends the signal to the controller to indicate that the supporting leg is in a grounding state.
The crane and the controller in the above embodiments are all conventional equipment elements, and the related arrangement, operation or control manner of the structure is the arrangement, operation or control manner which is conventional in the art.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The landing leg grounding state detection device of the miniature crane is characterized by comprising a landing leg connecting plate fixedly arranged on the outer side of the lower part of a crane landing leg, a landing leg grounding seat arranged on the inner side of the upper end of the crane landing leg, and a travel switch fixedly connected with the outer side of the landing leg grounding seat through a travel switch connecting plate; a sliding chute is arranged in the landing leg grounding seat, a compression spring is arranged in the sliding chute, the inner end of the compression spring is connected with a grounding firing pin corresponding to the travel switch, and the outer end of the compression spring is connected with a grounding ejector rod; the other end of the grounding ejector rod is connected with a support leg connecting frame, the lower portion of the support leg connecting frame is rotatably connected with the support leg connecting plate through a support leg rotating shaft, and the outer side of the bottom of the support leg connecting frame is connected with support legs through support leg rotating shafts.
2. The leg grounding state detecting device of a micro crane according to claim 1, wherein the length of the leg is greater than the height thereof.
3. The leg grounding state detection device of a micro crane according to claim 1, wherein the leg connecting frame is in an "L" shape.
4. The landing leg grounding state detection device of a micro crane according to claim 1, wherein one end of the grounding ejector rod is located in the chute, and the other end is located outside the chute.
5. The leg grounding state detector of a micro crane according to claim 1, wherein a guide rail for guiding a grounding pin to slide is provided on an inner end side wall of the leg grounding base, and the grounding pin is located in the guide rail.
6. The leg grounding state detecting device of a micro crane according to claim 1, wherein the grounding striker is in contact with the stroke switch when the crane leg is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921013661.2U CN210594956U (en) | 2019-07-02 | 2019-07-02 | Landing leg grounding state detection device of miniature crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921013661.2U CN210594956U (en) | 2019-07-02 | 2019-07-02 | Landing leg grounding state detection device of miniature crane |
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| Publication Number | Publication Date |
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| CN210594956U true CN210594956U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921013661.2U Active CN210594956U (en) | 2019-07-02 | 2019-07-02 | Landing leg grounding state detection device of miniature crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112249188A (en) * | 2020-11-06 | 2021-01-22 | 贝特（杭州）工业机械有限公司 | Miniature multipurpose spider formula caterpillar base plate |
-
2019
- 2019-07-02 CN CN201921013661.2U patent/CN210594956U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112249188A (en) * | 2020-11-06 | 2021-01-22 | 贝特（杭州）工业机械有限公司 | Miniature multipurpose spider formula caterpillar base plate |
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