CN114084792B - Crane hook assembly with self-locking function - Google Patents
Crane hook assembly with self-locking function Download PDFInfo
- Publication number
- CN114084792B CN114084792B CN202111524190.3A CN202111524190A CN114084792B CN 114084792 B CN114084792 B CN 114084792B CN 202111524190 A CN202111524190 A CN 202111524190A CN 114084792 B CN114084792 B CN 114084792B
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- Prior art keywords
- hook
- pawl
- connecting plate
- stop lever
- self
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Classifications
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- 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
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides a crane hook assembly with a self-locking function, which comprises a hook and a straight connecting section, wherein the hook is positioned at the lower side, the straight connecting section is positioned at the upper side of the hook, the upper end of the straight connecting section is rotationally connected with a horizontal connecting plate, a ratchet wheel is arranged at the upper end of the straight connecting section, and a vertical connecting plate is arranged on the horizontal connecting plate; a guide rod is arranged on the vertical connecting plate; the guide rod is in sliding connection with the pawl or the connecting rod, the lower end of the pawl corresponds to the ratchet setting, the upper end of the pawl is provided with the connecting rod, the guide rod with the contained angle of connecting rod is obtuse angle, acute angle or right angle, the upper end of connecting rod articulates there is the hoisting frame, and hoisting frame connects elevating system. The crane hook assembly with the self-locking function has the advantages of scientific design and simplicity and convenience in operation, and is locked through the pawl and the ratchet wheel in the use process, so that the hook is prevented from rotating in the lifting process, and the stability of the lifting process is fully improved.
Description
Technical Field
The invention relates to a crane accessory, in particular to a crane hook assembly with a self-locking function.
Background
The crane is a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects in a certain range, and is also called crown block, aerial crane and crane. The crane mainly comprises a lifting mechanism, an operating mechanism, an amplitude changing mechanism, a rotating mechanism and the like, wherein the lifting mechanism is a basic working mechanism of the crane and mostly consists of a hook system and a winch, and a hydraulic system is used for lifting and lowering heavy objects; the running mechanism is used for longitudinally and horizontally moving weights or adjusting the working position of the crane and generally consists of a motor, a speed reducer, a brake and wheels; the amplitude changing mechanism is only arranged on the arm support type crane, the amplitude of the arm support is reduced when the arm support is lifted, the amplitude of the arm support is increased when the arm support is lifted down, and the amplitude of the arm support is divided into two types of balanced amplitude changing and unbalanced amplitude changing; the slewing mechanism is used for slewing the arm support and consists of a driving device and a slewing bearing device. At present, a crane hook system on the market needs to be manually locked after a heavy object is connected, and the working efficiency is seriously affected.
In order to solve the above problems, an ideal technical solution is always sought.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides a crane hook assembly with a self-locking function.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the crane hook assembly with the self-locking function comprises a hook positioned at the lower side and a straight connecting section positioned at the upper side of the hook, wherein the upper end of the straight connecting section is rotationally connected with a horizontal connecting plate, a ratchet wheel is arranged at the upper end of the straight connecting section, and a vertical connecting plate is arranged on the horizontal connecting plate; a guide rod is arranged on the vertical connecting plate; the guide rod is in sliding connection with the pawl or the connecting rod, the lower end of the pawl corresponds to the ratchet setting, the upper end of the pawl is provided with the connecting rod, the guide rod with the contained angle of connecting rod is obtuse angle, acute angle or right angle, the upper end of connecting rod articulates there is the hoisting frame, and hoisting frame connects elevating system.
Based on the above, the horizontal connecting plate is a circular plate, the vertical connecting plate is an annular plate, the number of the guide rods is N, N is larger than 1 and is an integer, the guide rods are radially arranged, and the inner ends of the guide rods are mutually connected and are located on the central shaft of the annular plate.
Based on the above, a travel long hole is formed in the middle of the pawl or the connecting rod, and the guide rod penetrates through the travel long hole.
Based on the above, the upper end of the hook is rotationally connected with the stop lever, and the tip of the hook is provided with a limit groove corresponding to the lower end of the stop lever.
Based on the above, the horizontal connecting plate is provided with a bar-shaped hole corresponding to the upper end of the stop lever, the upper end of the stop lever is positioned between the ratchet wheel and the horizontal connecting plate, the stop lever is obliquely arranged, and the lower end of the stop lever is close to the inner side of the hook in a natural state.
Based on the above, the upper end of the stop lever is provided with a limit plate corresponding to the bar-shaped hole, and the edge of the bar-shaped hole is provided with a bearing step corresponding to the limit plate.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, and particularly provides the crane hook assembly with the self-locking function. The crane hook assembly with the self-locking function has the advantages of scientific design and simplicity and convenience in operation, and is locked through the pawl and the ratchet wheel in the use process, so that the hook is prevented from rotating in the lifting process, and the stability of the lifting process is fully improved. Specific self-locking principle: after the hook is connected with the weight, the lifting mechanism is started, the lifting frame moves along the vertical slideway, the included angle between the lifting frame and the connecting rod is reduced, the pawl moves towards the center to abut against the ratchet wheel so as to lock the ratchet wheel, the hook is prevented from rotating in the lifting process, and self-locking is completed.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic diagram of a second embodiment of the present invention.
Fig. 3 is a schematic view of the structure of the guide bar in the present invention.
Fig. 4 is a schematic view of the structure of the pawl according to the present invention.
Fig. 5 is a schematic view of the structure of the strip-shaped hole in the present invention.
In the figure: 1. a hook; 2. a straight connecting section; 3. a horizontal connecting plate; 4. a vertical connecting plate; 5. a guide rod; 6. a ratchet wheel; 7. a pawl; 8. a connecting rod; 9. a lifting frame; 10. a stroke long hole; 11. a stop lever; 12. a connecting shaft; 13. a vertical slideway; 14. a limiting plate; 15. and (5) a vertical bracket.
Detailed Description
The technical scheme of the invention is further described in detail through the following specific embodiments.
As shown in fig. 1-4, a crane hook assembly with a self-locking function comprises a hook 1 positioned at the lower side and a straight connecting section 2 positioned at the upper side of the hook 1, wherein the upper end of the straight connecting section 2 is rotationally connected with a horizontal connecting plate 3, a ratchet wheel 6 is arranged at the upper end of the straight connecting section 2, and a vertical connecting plate 4 is arranged on the horizontal connecting plate 3; a guide rod 5 is arranged on the vertical connecting plate 4; the guide rod 5 is in sliding connection with the pawl 7 or the connecting rod 8, the lower end of the pawl 7 is arranged corresponding to the ratchet 6, the connecting rod 8 is arranged at the upper end of the pawl 7, the included angle between the guide rod 5 and the connecting rod 8 is an obtuse angle, an acute angle or a right angle, the upper end of the connecting rod 8 is hinged with the lifting frame 9, and the lifting frame 9 is connected with the lifting mechanism. In this embodiment, the guide rod 5 is slidably connected to the pawl 7, and in other embodiments, the guide rod 5 may be slidably connected to the connecting rod 8.
Specifically, a mounting hole is formed in the horizontal connecting plate 3, the straight section passes through the mounting hole, and the outer diameter of the ratchet wheel 6 is larger than the inner diameter of the mounting hole; the structure of the lifting frame 9 can be set as required to accommodate different lifting structures, such as: the lifting frame 9 can be of a plate type structure so as to be connected with a hydraulic telescopic lifting structure; or a pulley block is arranged on the lifting frame 9 so as to be connected with a steel wire rope of the winch; the ratchet wheel 6 and the pawl 7 can adopt a ratchet wheel 6 and pawl 7 structure which is conventional in the prior art; in this embodiment, guide bar 5 sets up two, and vertical connecting plate 4 is ordinary straight template, and vertical connecting plate 4 and horizontal connecting rod 8 form U type structure, and guide bar 5 is located the top of vertical connecting plate 4. In addition, in order to improve the stability of structure, set up vertical support 15 on the horizontal connection board 3, set up vertical slide on the vertical support, vertical slide 13 sliding connection of hoisting frame 9 and vertical support 15.
Self-locking principle: after the hook is connected with the weight, the lifting mechanism is started, the lifting frame moves along the vertical slideway, the included angle between the lifting frame and the connecting rod is reduced, the pawl moves towards the center to abut against the ratchet wheel so as to lock the ratchet wheel, the hook is prevented from rotating in the lifting process, and self-locking is completed.
In one of the embodiments, the horizontal connection plate 3 and the ratchet 6 may be connected by a telescopic structure, for example: telescopic spring, telescopic rod, etc
In one embodiment, the horizontal connecting plate 3 is a circular plate, the vertical connecting plate 4 is an annular plate, the number of the guide rods 5 is N, N > 1 and is an integer, the guide rods 5 are radially arranged, and the inner ends of the guide rods 5 are connected with each other and are located on the central axis of the annular plate. Specifically, the number of the guide rods 5 can be 2, 3, 4 and the like, and the vertical supports can be arranged on the annular plate.
In one embodiment, a long travel hole 10 is provided in the middle of the pawl 7 or the connecting rod 8, and the guide rod 5 is inserted into the long travel hole 10.
In one embodiment, the upper end of the hook 1 is rotatably connected with the stop lever 11, a torsion spring is arranged on the connecting shaft 12, and a limit groove is arranged at the tip of the hook 1 corresponding to the lower end of the stop lever 11.
In one embodiment, the horizontal connecting plate 3 is provided with a bar-shaped hole corresponding to the upper end of the stop lever 11, the upper end of the stop lever 11 is positioned between the ratchet 6 and the horizontal connecting plate 3, and the stop lever 11 is obliquely arranged; in a natural state, the lower end of the stop lever 11 is close to the inner side of the hook 1, and the upper end of the stop lever 11 protrudes out of the strip-shaped hole; after connecting the heavy object, elevating system opens, and the horizontal connection board shifts up, and the ratchet downside pressure is in the upper end of pin 11, and the spacing groove of pin 11 lower extreme butt crotch 1 pointed end, horizontal connection board 3, ratchet 6, the upper end of pin 11 closely laminate to the pin carries out the auto-lock.
In one embodiment, the upper end of the stop lever 11 is provided with a limiting plate 14 corresponding to the bar-shaped hole, the edge of the bar-shaped hole is provided with a bearing step corresponding to the limiting plate 14, the lower end of the stop lever 11 is abutted to the limiting groove at the tip of the hook 1, and the limiting plate 14 at the upper end of the stop lever 11 falls onto the bearing step.
The above embodiments may be combined with each other.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (3)
1. Crane hook assembly with self-locking function, its characterized in that: the device comprises a hook positioned at the lower side and a straight connecting section positioned at the upper side of the hook, wherein the upper end of the straight connecting section is rotationally connected with a horizontal connecting plate, a ratchet wheel is arranged at the upper end of the straight connecting section, and a vertical connecting plate is arranged on the horizontal connecting plate; a guide rod is arranged on the vertical connecting plate; the guide rod is in sliding connection with the pawl or the connecting rod, the lower end of the pawl is arranged corresponding to the ratchet wheel, the connecting rod is arranged at the upper end of the pawl, the included angle between the guide rod and the connecting rod is an obtuse angle, an acute angle or a right angle, the upper end of the connecting rod is hinged with the lifting frame, and the lifting frame is connected with the lifting mechanism;
the upper end of the hook is rotationally connected with the stop lever, and a limit groove is formed at the tip of the hook corresponding to the lower end of the stop lever;
the upper end of the stop lever is positioned between the ratchet wheel and the horizontal connecting plate, the stop lever is obliquely arranged, and the lower end of the stop lever is close to the inner side of the hook in a natural state;
the upper end of the stop lever is provided with a limiting plate corresponding to the strip-shaped hole, and the edge of the strip-shaped hole is provided with a bearing step corresponding to the limiting plate.
2. The crane hook assembly with self-locking function of claim 1, wherein: the horizontal connecting plates are circular plates, the vertical connecting plates are annular plates, the number of the guide rods is N, N is larger than 1 and is an integer, the guide rods are radially arranged, and the inner ends of the guide rods are connected with each other and are located on the central shaft of the annular plates.
3. The crane hook assembly with self-locking function according to claim 1 or 2, characterized in that: the middle part of pawl or connecting rod is provided with the stroke slot hole, the guide bar wears to locate this stroke slot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524190.3A CN114084792B (en) | 2021-12-14 | 2021-12-14 | Crane hook assembly with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524190.3A CN114084792B (en) | 2021-12-14 | 2021-12-14 | Crane hook assembly with self-locking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114084792A CN114084792A (en) | 2022-02-25 |
| CN114084792B true CN114084792B (en) | 2023-08-11 |
Family
ID=80307207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111524190.3A Active CN114084792B (en) | 2021-12-14 | 2021-12-14 | Crane hook assembly with self-locking function |
Country Status (1)
| Country | Link |
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| CN (1) | CN114084792B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06345375A (en) * | 1993-06-10 | 1994-12-20 | Sumiko Matsuyama | Hook device for hoisting heavy object |
| JPH10273280A (en) * | 1997-03-28 | 1998-10-13 | Nkk Corp | Automatic suspension hook putting off device |
| JPH1160145A (en) * | 1997-08-12 | 1999-03-02 | Kokuan Ri | Hanger |
| JP2003054868A (en) * | 2001-06-06 | 2003-02-26 | Tootetsu:Kk | Removing device of sling for lifting heavy object |
| JP2006016163A (en) * | 2004-07-02 | 2006-01-19 | Eagle Kuranpu Kk | Derricking clamp |
| CN210505255U (en) * | 2019-09-29 | 2020-05-12 | 河南巨人起重机集团有限公司 | Lifting hook with rotation-proof device |
| CN210558893U (en) * | 2019-06-12 | 2020-05-19 | 凌大勇 | Double anti-drop hook of crane |
| CN211226022U (en) * | 2019-09-11 | 2020-08-11 | 成都理工大学 | Mechanical hook structure with rotation function |
| CN112279076A (en) * | 2020-11-14 | 2021-01-29 | 信华智能装备(江苏)有限公司 | Crane hook assembly with self-locking function |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8523253B1 (en) * | 2012-04-05 | 2013-09-03 | Konecranes Plc. | Lifting assembly |
-
2021
- 2021-12-14 CN CN202111524190.3A patent/CN114084792B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06345375A (en) * | 1993-06-10 | 1994-12-20 | Sumiko Matsuyama | Hook device for hoisting heavy object |
| JPH10273280A (en) * | 1997-03-28 | 1998-10-13 | Nkk Corp | Automatic suspension hook putting off device |
| JPH1160145A (en) * | 1997-08-12 | 1999-03-02 | Kokuan Ri | Hanger |
| JP2003054868A (en) * | 2001-06-06 | 2003-02-26 | Tootetsu:Kk | Removing device of sling for lifting heavy object |
| JP2006016163A (en) * | 2004-07-02 | 2006-01-19 | Eagle Kuranpu Kk | Derricking clamp |
| CN210558893U (en) * | 2019-06-12 | 2020-05-19 | 凌大勇 | Double anti-drop hook of crane |
| CN211226022U (en) * | 2019-09-11 | 2020-08-11 | 成都理工大学 | Mechanical hook structure with rotation function |
| CN210505255U (en) * | 2019-09-29 | 2020-05-12 | 河南巨人起重机集团有限公司 | Lifting hook with rotation-proof device |
| CN112279076A (en) * | 2020-11-14 | 2021-01-29 | 信华智能装备(江苏)有限公司 | Crane hook assembly with self-locking function |
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| Publication number | Publication date |
|---|---|
| CN114084792A (en) | 2022-02-25 |
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