CN1230375C - Hook with unhooking function - Google Patents
Hook with unhooking function Download PDFInfo
- Publication number
- CN1230375C CN1230375C CN 02148869 CN02148869A CN1230375C CN 1230375 C CN1230375 C CN 1230375C CN 02148869 CN02148869 CN 02148869 CN 02148869 A CN02148869 A CN 02148869A CN 1230375 C CN1230375 C CN 1230375C
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- CN
- China
- Prior art keywords
- hook
- semicircular ring
- ring
- unhooking
- semicircular
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Load-Engaging Elements For Cranes (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
The present invention provides a hook with unhooking function, which relates to a lifting hook for wharfs, stations, mines and construction sites. The present invention comprises a lifting ring, two semicircular rings for loading heavy goods and an unhooking mechanism. After the two semicircular rings are closed, the lower parts of the inner circles of the two semicircular rings form a V-shaped structure; the unhooking mechanism adopts a hook capable of being self locked; one end of the hook is articulated on one semicircular ring, and the other end is buckled with the other semicircular ring; a plane that the hook contacting the semicircular rings form a leaning angle of-2 to 3 DEG with the tangential direction of the move track of the mechanism. The present invention not only can realize the functional requirements of safe lifting and smooth unhooking, can not be limited by a travel range, and does not need matching a circuit or a gas pipeline, but also has the advantages of simple structure, easy machining and fabrication, labor saving for operation, easy unhooking and high operational safety and reliability under various loading states, and simultaneously the safety is free from the influence of the size of the loading.
Description
Technical field
The present invention relates to a kind of occasion lifting goods and employed load hooks in building ground such as harbour, station, mine and forest zone of being used for, relate in particular to a kind of suspension hook with unhook function.
Background technology
The present invention is a kind of load hook that can be widely used in occasions such as harbour, station, mine, forest zone and building ground.The specific function of this device is: under manpower control, can realize the unhook function under the loading condition.
In the mine, occasions such as forest zone and irrigation site, hoisting crane with building stones or timber hang rise to desired location after, need a special arrangement that goods is discharged, cause accident on duty to avoid artificial decoupling device, and increase work efficiency.Because the cargo mass of lifting is bigger, this release gear is wanted to bear bigger load; And this device should have higher safety and reliability, and simple in structure, be convenient to the operation.That is to say, in practical operation, can realize the safety jaw liter, discharge smoothly.
The domestic and international trip mechanism of development types such as formula, the formula of meeting and discussing and weight hammer type of pulling pin in recent years.The formula of pulling pin breaks off relations in the inner grooving of coupler body, loads onto parts such as extension spring, pin.By mechanical booster mechanism or calutron pin is extracted when discharging, unhook is released.This design is fine when little load; But under the bigger situation of load, out of stock work-saving device there is higher requirement, has increased the volume and the complexity of structure.Be not easy to operation and less reliable like this.Then structure is complicated to adopt calutron, and cost is higher, and is unsuitable for not having electric field and closes.The automatically-unhooked vital parts of the formula of meeting and discussing is meet and discuss connecting rod and shackle hook, when hoisting device unloads, suspension hook falls, discharging suspension hook when running into weight when meeting and discussing realizes automatically-unhooked, meet and discuss when the major defect of this unhook is to break off relations and not necessarily can produce sizeable triggering power, therefore can not guarantee disposable unhook, reliability is relatively poor.The automatically-unhooked cardinal principle of weight hammer type is to utilize weight to fall to causing that the part rotation realizes breaking off relations in the suspension hook.The subject matter of this device is that it is that force of inertia is wayward that weight falls, and also has the danger of breaking off relations when being about to lifting, and is therefore very dangerous.
China's utility model patent (notification number CN2056669U) discloses a kind of suspension hook that is used for hoisting heavy and discharges suddenly, adopt two and half arc shaped hooks load weight under the constraint of cross bar, cross bar one end axle is connected in wherein on one and half arc shaped hooks, and the other end contacts with second half arc by rolling pair.This structure is difficult for processing owing to adopt arcuate structure; Uncoupling rigging adopts the opening and closing of rolling pair control hook, and the application force that produces in the horizontal direction by the weight load compresses the arc shaped hook of both sides fully, hangs when loading therefore that to rise safety relatively poor when very little; During unhook, the application force that must overcome above-mentioned horizontal direction can break off relations smoothly, and when load was big, difficulty broke off relations.
Summary of the invention
The purpose of this invention is to provide a kind of have simple in structure, reliability height, rapid operation, and can under the situation of various loads, finish safety jaw and rise and the suspension hook that discharges smoothly.
Technical scheme of the present invention is as follows: a kind of suspension hook that has the unhook function, two semi-rings and the uncoupling rigging that comprise suspension ring, load weight, the coaxial installation of described semi-ring and suspension ring, it is characterized in that: described semi-ring adopts semicircular ring, its interior circle bottom constitutes " V " shape structure after two semicircular ring closures, but described uncoupling rigging adopts the hook of self-locking, one end of this hook is hinged on the semicircular ring, its other end and another semicircular ring interlock, and the plane that this hook contacts with semicircular ring becomes-2～3 ° leaning angle with the tangential direction of this mechanism kinematic track.
Feature of the present invention also is on the axle that two semicircular ring link to each other torsion spring to be housed, and these torsion spring two ends are stuck in two semicircular ring inboards, realizes the self-locking when suspension hook is unloaded.
Two semicircular ring bottoms described in the present invention are respectively equipped with projection and the groove that cooperates the location, and leave 1～2 mm clearance when bearing a heavy burden.
The present invention compared with prior art has the following advantages and the high-lighting progress: not only solves safety jaw and risen and the functional requirement that discharges smoothly, be not subjected to stroke limitation, do not needed supporting circuit and gas passage, and also simple in structure, be easy to processing and manufacturing; Weight owing to torsion spring and institute's load can both make the suspension hook self-locking simultaneously, so the safety of this device is not subjected to the influence of payload, and energy safety jaw liter when load is very little; When breaking off relations, external force only need overcome application force tangential on the faying face, and rapid operation break off relations easily, so the present invention all has higher processing safety and reliability under the state of various loads.
Description of drawings
Fig. 1 is the structural representation that has the suspension hook of unhook function provided by the invention.
Fig. 2 is the A-A cutaway view among Fig. 1.
Fig. 3 is the structural representation of suspension hook when load condition.
Fig. 4 is suspension hook unhook release position scheme drawings.
The specific embodiment
Below in conjunction with accompanying drawing in detail, concrete structure of the present invention and principle of work are described in detail.
This device is by suspension ring 1, adapter shaft 7, left and right sides semicircular ring 4,8, and torsion spring 2, hook 10 and hook hinge axis 9 constitute.Suspension ring 1 upper end is connected with the lifting steel wire, and two semicircular ring 4,8 are connected with suspension ring 1 by adapter shaft 7, and two semicircular ring 4,8 can freely be rotated around axle 7.Be respectively equipped with the projection and the groove that cooperate the location two semicircular ring bottoms, concavo-convex relatively, as shown in Figure 2, when it is closed up in a plane.One end of hook 10 is hinged on the semicircular ring 8, and its other end and another semicircular ring 4 interlock, and hook 10 planes that contact with semicircular ring 5 become-2～3 ° leaning angle with the tangential direction of this mechanism kinematic track.After buckling hook 10, two semicircular ring 4,8 bottoms should keep 1～2 millimeter horizontal clearance in addition.Torsion spring 2 is on adapter shaft 7, and two ends are stuck in the inboard of two semicircular ring 4,8, makes two semicircular ring 4,8 can keep open configuration (as shown in Figure 4) in no effect of contraction following time.
As shown in Figure 3, before lifting cargo, the annulus 3 that will link to each other with goods 14 penetrates in the zone of two semicircular ring, 4,8 formations, the application force that overcomes spring 2 closes up two semicircular ring 4,8, be combined into a domain, and " V " shape groove that makes annulus 3 place two semicircular ring of suspension hook, 4,8 bottoms to constitute, will link up with 10 then and be buckled on the breach of the right semicircular ring.After loosing one's grip, because the effect of torsion spring, two semicircular ring 4,8 outer opening and compress hook 10.Because faying face 5 and the tangential direction L that links up with 10 path of motions
2(perpendicular to the line L between the mid point of hook hinge axis 9 and faying face 5
1) between (2～3 °) in a very small angle, under the combined action of friction force and faying face tangential forces, can guarantee to link up with 10 in the self-locking of faying face place.During lifting cargo, the horizontal load component of annulus 3 on suspension hook " V " shape groove makes outside semicircular ring 4 and 8 to be opened, and makes faying face 5 pressurizeds of hook 10 and right side semicircular ring 4, can form the structure self-locking equally.
When needs break off relations, when discharging the annulus 3 of load weight, be through the nylon rope of linking up with on 10 right ports 6 13 as long as spur.Because the angle between faying face 5 and the path of motion tangent line L2 is very little, so only need apply little external force, just can overcome the application force on the faying face, reach the purpose of removing the hook constraint.When hook was drawn back, under the combined action of load on the heavy burden annulus 3 and torsion spring 2, two semi-rings flicked to both sides, and annulus 3 is released, and promptly suspension hook is realized breaking off relations.
Claims (3)
1. suspension hook that has the unhook function, two semi-rings and the uncoupling rigging that comprise suspension ring, load weight, the coaxial installation of described semi-ring and suspension ring, it is characterized in that: described semi-ring adopts semicircular ring, its interior circle bottom constitutes " V " shape structure after two semicircular ring closures, but described uncoupling rigging adopts the hook of self-locking, one end of this hook is hinged on the semicircular ring, its other end and another semicircular ring interlock, and the plane that this hook contacts with semicircular ring becomes-2～3 ° leaning angle with the tangential direction of hook path of motion.
2. according to the described suspension hook that has the unhook function of claim 1, it is characterized in that: on the axle that two semicircular ring link to each other torsion spring is housed, these torsion spring two ends are stuck in two semicircular ring inboards.
3. according to claim 1 or the 2 described suspension hooks that have the unhook function, it is characterized in that: two semicircular ring bottoms are respectively equipped with projection and the groove that cooperates the location, and when bearing a heavy burden 1～2 mm clearance are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02148869 CN1230375C (en) | 2002-11-22 | 2002-11-22 | Hook with unhooking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02148869 CN1230375C (en) | 2002-11-22 | 2002-11-22 | Hook with unhooking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1405461A CN1405461A (en) | 2003-03-26 |
| CN1230375C true CN1230375C (en) | 2005-12-07 |
Family
ID=4751565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02148869 Expired - Fee Related CN1230375C (en) | 2002-11-22 | 2002-11-22 | Hook with unhooking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1230375C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549831B (en) * | 2009-05-08 | 2011-06-01 | 江苏科技大学 | Fast connection separator |
| CN103287967B (en) * | 2013-05-09 | 2014-12-03 | 哈尔滨工程大学 | Releasing device provided with long-distance releasing function |
| CN110477063B (en) * | 2019-07-08 | 2021-10-22 | 西安理工大学 | Unhooking device |
| CN112607640B (en) * | 2021-01-08 | 2022-03-04 | 国网新疆电力有限公司伊犁供电公司 | Insulating self-locking hook |
| CN113882872B (en) * | 2021-11-01 | 2023-05-30 | 大连海事大学 | Automatic unhooking device for lifting soil collecting vehicle box in subway shield tunnel construction |
-
2002
- 2002-11-22 CN CN 02148869 patent/CN1230375C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1405461A (en) | 2003-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051207 Termination date: 20131122 |