CN115448148A - Lifting hook capable of automatically unhooking - Google Patents
Lifting hook capable of automatically unhooking Download PDFInfo
- Publication number
- CN115448148A CN115448148A CN202211205904.9A CN202211205904A CN115448148A CN 115448148 A CN115448148 A CN 115448148A CN 202211205904 A CN202211205904 A CN 202211205904A CN 115448148 A CN115448148 A CN 115448148A
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- CN
- China
- Prior art keywords
- hook
- pull rod
- movable hook
- hole
- movable
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- 230000005484 gravity Effects 0.000 claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a lifting hook capable of automatically unhooking, which comprises a pull rod, a movable hook and a pin shaft, wherein the pull rod is vertically arranged, the upper end of the pull rod is of a lifting hook connecting structure, the lower part of the pull rod is provided with a long slotted hole which is through front and back and is open at the lower side, the lower part of the right side of the long slotted hole is provided with a limit stop, the pull rod is provided with a first pin hole along the left-right direction above the limit stop, the movable hook is in a long strip shape, the movable hook is vertically arranged in the long slotted hole and is positioned on the left side of the limit stop, the movable hook is provided with a second pin hole corresponding to the first pin hole, the pin shaft penetrates through the first pin hole and the second pin hole to rotatably connect the movable hook and the pull rod, the second pin hole is positioned above the gravity center of the movable hook, a connecting hole is arranged below the gravity center of the movable hook, and a pull rope is bound and connected in the connecting hole. The invention has scientific principle and simple structure, can greatly shorten the unhooking operation time and improve the hoisting operation efficiency, does not need manual participation in the unhooking process, and improves the hoisting operation safety.
Description
Technical Field
The invention belongs to the technical field of hoisting, and particularly relates to a lifting hook capable of automatically unhooking.
Background
Heavy object grows up in the hoist and mount, or when the heavy object hoisting point is higher, the unhook operation after hoist to the assigned position often needs artifical the completion, and the unhook operation is wasted time and energy, greatly reduced hoist and mount operating efficiency, climbing operation about the operating personnel exists great potential safety hazard moreover. Therefore, it is highly desirable to design a hook that can automatically unhook.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides the lifting hook which is convenient to operate, time-saving, labor-saving, safe and reliable and can automatically unhook.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a lifting hook that can unhook automatically, including the pull rod, move hook and round pin axle, the vertical setting of pull rod, the pull rod upper end is lifting hook connection structure, it is penetrating around opening the pull rod lower part has, the open long slot hole of downside, long slot hole right side lower part is equipped with limit stop, it has opened first pinhole to have seted up along the left and right direction in limit stop top on the pull rod, it is rectangular platelike to move the hook, it is vertical to set up in the long slot hole and is located the limit stop left side to move the hook, move and set up the second pinhole that corresponds with first pinhole on the hook, the round pin axle passes first pinhole and second pinhole and will move the hook and be connected with the pull rod rotation, the second pinhole is located and moves hook focus top, it is equipped with the connecting hole to move hook focus below on the hook to move, be connected with the cable in the connecting hole ligature.
The center of the second pin hole is positioned on the right side of the vertical center line of the movable hook, and the center of the connecting hole is positioned on the left side of the vertical center line of the movable hook; the second pin hole is of a waist-shaped hole structure, and the length direction of the waist-shaped hole structure is consistent with the length direction of the movable hook.
When the movable hook naturally and vertically keeps drooping under the action of self gravity, the right side of the movable hook is contacted with the left side of the limit stop, the left side of the movable hook is parallel to the central line of the pull rod, and the left side of the movable hook is vertically kept flush with the left side of the maximum excircle of the pull rod; when upwards tractive through the cable moves the hook, moves the hook and uses the round pin axle to rotate 90 as the center, moves the hook and touches limit stop top and is restricted the rotation, moves the hook this moment and keeps the level.
The left side and the right side of the lower end of the movable hook are both provided with a chamfer structure.
The distance from the lower end of the movable hook to the pin shaft is larger than the distance from the pin shaft to the top of the long slot hole.
By adopting the technical scheme, when the lifting device works and is used, the upper end of the pull rod is connected with the hanging ring through the lifting hook connecting structure, and the hanging ring is hung on the hook of the lifting device. The hoisting device is controlled to lower the hook when hoisting, the pull rod and the movable hook of the hook also move downwards, the lower end of the movable hook firstly penetrates into the hanging hole of the heavy object, the pull rope is pulled upwards until the upper end of the slotted hole enters into the hanging hole, the movable hook moves upwards along the second pin hole and rotates around the pin shaft, when the movable hook rises to the highest point and rotates to a position slightly larger than 90 degrees, the bottom surface of the right side of the movable hook touches the top of the limit stop, the movable hook keeps horizontal and stops moving, the lifting steel wire rope on the hook is slightly pulled upwards, the movable hook in the horizontal state is made to contact with the lower bearing surface of the hanging hole, the whole hook is in a hoisting working state, and the hoisting device is controlled to lift the hook to carry out hoisting operation.
After a heavy object is hoisted in place, the hoisting steel wire rope is continuously lowered to a loose state, the lifting hook integrally moves downwards under the action of gravity, the movable hook is separated from the lower surface of the lifting hole, the movable hook moves downwards along the second pin hole under the action of gravity and rotates around the pin shaft until the movable hook contacts with the left side of the limit stop, the movable hook and the pull rod are positioned on a vertical straight line, the working state is the unhooking working state, and the hoisting device is controlled to upwards pull the hoisting steel wire rope on the upper portion of the lifting hook, so that the lifting hook can be separated from the lifting hole in the top of the lifting appliance.
The second pinhole is waist type pore structure, and when upwards pulling the cable, waist type pore structure can follow round pin axle rebound like this, and the extension length increase on movable hook to pull rod right side makes the movable hook extension length of the pull rod left and right sides close, and when the unhook, the movable hook slides downwards when the round pin axle is the fulcrum rotation under self action of gravity, has better flexibility and unhook reliability.
The left side and the right side of the lower end of the movable hook are provided with the chamfer structures, and the movable hook can conveniently enter a lifting hole of a lifting appliance when in hanging operation.
The distance from the lower end of the movable hook to the pin shaft is larger than the distance from the pin shaft to the topmost part of the long slot hole, and the movable hook on the left side of the pull rod can extend to a larger length after the movable hook moves upwards for the length of the waist-shaped hole.
In conclusion, the invention has scientific principle and simple structure, can greatly shorten the unhooking operation time and improve the hoisting operation efficiency, does not need manual participation in the unhooking process, and improves the hoisting operation safety.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the movable hook of the present invention rotated to a horizontal position;
FIG. 4 is a schematic view of the structure of the drawbar of FIG. 1;
fig. 5 is a schematic structural view of the movable hook in fig. 1.
Detailed Description
As shown in fig. 1-5, the lifting hook capable of automatically unhooking comprises a pull rod 1, a movable hook 2 and a pin shaft 3, wherein the pull rod 1 is vertically arranged, a lifting hook connecting structure 4 is arranged at the upper end of the pull rod 1, a long slot 5 which is through in the front and back and is open at the lower side is formed in the lower portion of the pull rod 1, a limit stop 6 is arranged at the lower portion of the right side of the long slot 5, a first pin hole 7 is formed in the upper portion of the limit stop 6 along the left-right direction on the pull rod 1, the movable hook 2 is in a long plate shape, the movable hook 2 is vertically arranged in the long slot 5 and is positioned on the left side of the limit stop 6, a second pin hole 8 corresponding to the first pin hole 7 is formed in the movable hook 2, the pin shaft 3 penetrates through the first pin hole 7 and the second pin hole 8 to rotatably connect the movable hook 2 with the pull rod 1, the second pin hole 8 is positioned above the gravity center of the movable hook 2, a connecting hole 9 is formed in the movable hook 2, and a binding cable 10 is connected in the connecting hole 9.
The center of the second pin hole 8 is positioned on the right side of the vertical center line of the movable hook 2, and the center of the connecting hole 9 is positioned on the left side of the vertical center line of the movable hook 2; the second pin hole 8 is a waist-shaped hole structure, and the length direction of the waist-shaped hole structure is consistent with the length direction of the movable hook 2.
When the movable hook 2 naturally and vertically keeps drooping under the action of self gravity, the right side of the movable hook 2 is contacted with the left side of the limit stop 6, the left side of the movable hook 2 is parallel to the central line of the pull rod 1, and meanwhile, the left side of the movable hook 2 is vertically kept flush with the left side of the maximum excircle of the pull rod 1; when the movable hook 2 is pulled upwards through the inhaul cable 10, the movable hook 2 rotates 90 degrees by taking the pin shaft 3 as a center, the movable hook 2 touches the top of the limit stop 6 to be limited to rotate, and the movable hook 2 keeps horizontal at the moment.
The left side and the right side of the lower end of the movable hook 2 are both provided with a chamfer structure 11.
The distance from the lower end of the movable hook 2 to the pin shaft 3 is greater than the distance from the pin shaft 3 to the top of the long slotted hole 5.
When the lifting hook is used, the upper end of the pull rod 1 is connected with a hanging ring through the lifting hook connecting structure 4, and the hanging ring is hung on a hanging hook of a lifting device. The hoisting device is controlled to lower the hook when hoisting, the pull rod 1 and the movable hook 2 of the hook also move downwards, the lower end of the movable hook 2 firstly penetrates into the hoisting hole at the top of the heavy object, when the upper end of the long slotted hole 5 enters into the hoisting hole, the pull cable 10 is pulled upwards, the movable hook 2 moves upwards along the second pin hole 8 and rotates around the pin shaft 3, when the movable hook 2 rises to the highest point and rotates to be slightly larger than 90 degrees, the bottom surface of the right side of the movable hook 2 touches the top of the limit stop 6, the movable hook 2 keeps horizontal and stops moving, at the moment, the lifting steel wire rope on the hook is slightly pulled upwards, the movable hook 2 in the horizontal state is in contact with the lower bearing surface of the hoisting hole, the whole hook is in a hoisting working state, and at the moment, the hoisting device is controlled to lift the hook, so that the hoisting operation can be carried out.
After the heavy object is hoisted in place, the hoisting steel wire rope is continuously lowered to a loose state, the lifting hook integrally moves downwards under the action of gravity, the movable hook 2 is separated from the lower surface of the hoisting hole, the movable hook 2 moves downwards along the second pin hole 8 under the action of gravity and rotates around the pin shaft 3 until the movable hook 2 is contacted with the left side of the limit stop 6, the movable hook 2 and the pull rod 1 are positioned on a vertical straight line, the working state is an unhooking working state, and the hoisting device is controlled to upwards pull the hoisting steel wire rope on the upper portion of the lifting hook, so that the lifting hook can be separated from the hoisting hole in the top of the lifting appliance.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a lifting hook that can unhook automatically which characterized in that: including the pull rod, move hook and round pin axle, the vertical setting of pull rod, the pull rod upper end is lifting hook connection structure, it is penetrating around opening the pull rod lower part, the open slotted hole of downside, slotted hole right side lower part is equipped with limit stop, it has first pinhole to have seted up along the left and right direction in limit stop top on the pull rod, it is rectangular platelike to move the hook, it is vertical to set up in the slotted hole and be located the limit stop left side to move the hook, move and set up the second pinhole that corresponds with first pinhole on the hook, the round pin axle passes first pinhole and second pinhole and will move the hook and rotate with the pull rod and be connected, the second pinhole is located and moves hook focus top, it is equipped with the connecting hole to move hook focus below on the hook to move, ligature is connected with the cable in the connecting hole.
2. An automatically unhooking lifting hook as claimed in claim 1, wherein: the center of the second pin hole is positioned on the right side of the vertical center line of the movable hook, and the center of the connecting hole is positioned on the left side of the vertical center line of the movable hook; the second pin hole is of a waist-shaped hole structure, and the length direction of the waist-shaped hole structure is consistent with the length direction of the movable hook.
3. An automatically unhooking lifting hook as claimed in claim 1 or 2, wherein: when the movable hook naturally and vertically keeps drooping under the action of self gravity, the right side of the movable hook is contacted with the left side of the limit stop, the left side of the movable hook is parallel to the central line of the pull rod, and the left side of the movable hook is vertically kept flush with the left side of the maximum excircle of the pull rod; when upwards tractive through the cable moves the hook, moves the hook and uses the round pin axle to rotate 90 as the center, moves the hook and touches limit stop top and is restricted the rotation, moves the hook this moment and keeps the level.
4. A hook as claimed in claim 3, wherein: the left side and the right side of the lower end of the movable hook are both provided with a chamfer structure.
5. An automatically unhooking lifting hook as claimed in claim 1, wherein: the distance from the lower end of the movable hook to the pin shaft is larger than the distance from the pin shaft to the top of the long slot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211205904.9A CN115448148A (en) | 2022-09-30 | 2022-09-30 | Lifting hook capable of automatically unhooking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211205904.9A CN115448148A (en) | 2022-09-30 | 2022-09-30 | Lifting hook capable of automatically unhooking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115448148A true CN115448148A (en) | 2022-12-09 |
Family
ID=84308222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211205904.9A Pending CN115448148A (en) | 2022-09-30 | 2022-09-30 | Lifting hook capable of automatically unhooking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115448148A (en) |
-
2022
- 2022-09-30 CN CN202211205904.9A patent/CN115448148A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Guo Zilu Inventor after: Liu Wei Inventor after: Lv Kun Inventor after: Zhang Xiaoxu Inventor after: Chu Xindong Inventor after: Guo Zheng Inventor after: Xue Xinshun Inventor after: Wang Guohui Inventor after: Zhang Suna Inventor after: Guo Jiabao Inventor after: Zhang Hai Inventor after: Chen Donghai Inventor before: Guo Zilu Inventor before: Liu Wei Inventor before: Lv Kun Inventor before: Chu Xindong Inventor before: Guo Zheng Inventor before: Xue Xinshun Inventor before: Wang Guohui Inventor before: Zhang Suna Inventor before: Guo Jiabao Inventor before: Zhang Hai Inventor before: Chen Donghai |
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| CB03 | Change of inventor or designer information |