CN104891327A - Lifting hook with gravity lever type anti-unhooking device - Google Patents
Lifting hook with gravity lever type anti-unhooking device Download PDFInfo
- Publication number
- CN104891327A CN104891327A CN201510295766.1A CN201510295766A CN104891327A CN 104891327 A CN104891327 A CN 104891327A CN 201510295766 A CN201510295766 A CN 201510295766A CN 104891327 A CN104891327 A CN 104891327A
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- China
- Prior art keywords
- hook
- slab
- releasing device
- short slab
- lifting hook
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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 relates to the field of special mechanical equipment, in particular to a lifting hook with a gravity lever type anti-unhooking device. The lifting hook comprises a hook body (1) and a hook handle (2), wherein an anti-unhooking device is mounted on a joint of the hook body (1) and the hook handle (2). According to the lifting hook, by adopting the gravity lever principle, two iron plates (one short plate and one long plate) are fixed by bolts and also can be welded together; the short plate (namely an anti-dropping plate) is closed with the lifting hook by virtue of self-gravity of the long rod; and the anti-dropping plate and the lifting hook are always closed under a normal condition, so that only is gravity difference between the long rod and the anti-dropping plate required to overcome in the counter-clockwise direction in an open state. Force of opening the anti-dropping plate is far lower than twisting force, overcome by an existing lifting hook with an anti-unhooking device, of a spring, so that the force of opening the anti-dropping plate does not need to artificially overcome. The lifting hook is reasonable in design and simple in structure, so that the lifting hook with the anti-unhooking device is relatively practical and safe, and has good market application prospect.
Description
Technical field
The present invention relates to special equipment mechanical field, be specially a kind of load hook with gravity lever Anti-hook releasing device.
Background technology
At present, the weak point that the common Anti-hook releasing device on load hook exists is applied to:
(1) need people to be the torsion overcoming spring when taking out rigging, especially large-tonnage suspension hook, compares effort, so very inconvenient during operation, have impact on production efficiency, and operator is unwilling to use
(2) common Anti-hook releasing device adopts the iron plate of 0.5-0.6mm to be stamped to form mostly, insufficient strength.If gain in strength by force, then cannot mate with spring.Because the working environment of hoisting crane is complicated, the situations such as suspension hook can often collide, extruding, and the insufficient strength of Anti-hook releasing device, be easy to deformation failure.
(3) from mounting structure, suspension hook is fixed hanger width too narrow, and Anti-hook releasing device is fixed by biside plate, after fixing, Anti-hook releasing device can left and right play, is easy to make attachment bolt flexural deformation, pull back spring damages.Meanwhile, it connects and uses plain bolt, and nut cannot pretension, causes nut easily to loosen, comes off.
Common Anti-hook releasing device produces following problem in use: one is use inconvenience, is often artificially removed in actual applications; Two is insufficient strength, easily deforms; Three is that mounting structure is unreasonable, fragilely comes off.Because its service efficiency is low, own rapid wear in addition, is namely damaged for 2,3 days sometimes, so operating personal is often disinclined to install additional after damage.
In 2013-2014 years, check elevator machinery 1702 altogether, find that there is the suspension hook Anti-hook releasing device existing problems of 1068 equipment, account for about 63% of examined hoisting crane sum, the suspension hook Anti-hook releasing device rate that is up to the standards is on the low side.Problem main manifestations is: the Anti-hook releasing device of weight-lifting equipment suspension hook is ineffective, some gross distortions, and some pull back springs damage, and the suspension hook even had loses Anti-hook releasing device, loses the effect of anti-deprotection.
In view of above reason, be necessary to develop a kind of safer, practical Novel hook Anti-hook releasing device.
Summary of the invention
The object of the invention is to the shortcoming for overcoming ordinary lifting hook anti-drop device, a kind of Anti-hook releasing device and suspension hook of more practical safety are provided.
The present invention adopts following technical scheme to realize:
A kind of gravity lever load hook Anti-hook releasing device, comprise the first short slab and the first long slab, described first short slab and the first long slab are that acute angle is connected; Also comprise the second short slab and the second long slab, described second short slab and the second long slab are that acute angle is connected; Anticreep plate is connected with between described first short slab and the end of the second short slab; The junction of the junction of described first short slab and the first long slab, described second short slab and the second long slab has through hole in relevant position respectively, is provided with bolt in described through hole.
This Anti-hook releasing device is installed on load hook.Load hook comprises coupler body and the neck of hook, and the junction of described coupler body and the neck of hook has through hole in relevant position, and described Anti-hook releasing device is installed on suspension hook by hold-down bolt in through hole, thus forms the load hook with gravity lever Anti-hook releasing device.Under normality, take bolt as fulcrum, due to gravity leverage, anticreep plate is against the end of coupler body.
Above-mentioned suspension hook Anti-hook releasing device adopts gravity lever principle, and two iron plates (one is long and the other is short) are fixed with bolt, also can weld together.With long slab from gravity by anticreep plate that short slab connects all the time with the ends contact of coupler body, suspension hook is closed, and anticreep plate and suspension hook are forever closed under normal circumstances, only need anticlockwise direction to overcome gravitational difference between long slab and anticreep plate when opening.The power opening anticreep plate like this overcomes the torsion of spring much smaller than existing suspension hook Anti-hook releasing device, also do not need people for overcoming.
Compared with ordinary lifting hook anti-drop device, suspension hook Anti-hook releasing device structure of the present invention is simple, easy to make, meets again the lock hook requirement of crane hook.Through overtesting, respond well, intensity is high, durable in use.In January, 2015, through elevator machinery originating firm professional and technical personnel, applying unit, the on-the-spot handling weight test of inspector, unanimously think its Novel hook Anti-hook releasing device economy, use, safety to there is feasibility.Its beneficial effect is as follows:
1, easy to operate
Using novel suspension hook Anti-hook releasing device, when dismantling suspender, overcoming the gravity of closing appliance, the power that only needs one are less keeps, and it is very convenient to operate, and greatly alleviates labor intensity.
2, intensity is higher
Novel suspension hook Anti-hook releasing device material is thick, and whole device intensity is higher, not yielding.
3, not easily play
Novel suspension hook Anti-hook releasing device only has one degree of freedom, can not play, not fragile.
4, easy to make
Do not need to change former suspension hook, commonality is comparatively strong, is easy to processing.
5, cost is low
For 20T suspension hook, ordinary lifting hook Anti-hook releasing device and Novel hook Anti-hook releasing device price are dozens of yuan.And Novel hook Anti-hook releasing device is more durable in use, so relative inexpensiveness.
The present invention is reasonable in design, structure is simple, makes the more practical safety of suspension hook with Anti-hook releasing device, has good market application foreground.
Accompanying drawing explanation
Fig. 1 represents the structural representation of load hook of the present invention.
Fig. 2 represents the structural representation of Anti-hook releasing device.
Fig. 3 represents the lateral plan of Anti-hook releasing device.
In figure, 1-coupler body, the 2-neck of hook, 3-anticreep plate, 4-bolt, 5-through hole, 11-first short slab, 12-first long slab, 21-second short slab, 22-second long slab.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail.
embodiment 1
Have a load hook for gravity lever Anti-hook releasing device, as shown in Figure 1, comprise coupler body 1 and the neck of hook 2, the junction of described coupler body 1 and the neck of hook 2 is provided with Anti-hook releasing device; Described Anti-hook releasing device comprises the first short slab 11 and the first long slab 12, and described first short slab 11 is connected in acute angle with the first long slab 12; Also comprise the second short slab 21 and the second long slab 22, described second short slab 21 is connected in acute angle with the second long slab 22.Wherein, size those skilled in the art of acute angle determine according to actual conditions, realize gravity lever.
Anticreep plate 3 is connected with between described first short slab 11 and the end of the second short slab 12; First short slab 11, first long slab 21 and the second short slab 21, second long slab 22 are symmetric, the junction of the junction of the junction of described first short slab 11 and the first long slab 12, described second short slab 21 and the second long slab 22, described coupler body 1 and the neck of hook 2 has through hole 5 in relevant position respectively, described Anti-hook releasing device is installed on suspension hook by hold-down bolt 4 in through hole 5, under normality, anticreep plate 3 is against the end of coupler body 1.
Adopt gravity lever principle, two iron plates (one is long and the other is short) are fixed with bolt, also can weld together, short slab and anticreep plate and suspension hook are closed from gravity with stock, anticreep plate and suspension hook are forever closed under normal circumstances, only need anticlockwise direction to overcome gravitational difference between stock and anticreep plate when opening.The power opening anticreep plate like this overcomes the torsion of spring much smaller than existing suspension hook Anti-hook releasing device, also do not need people for overcoming.
embodiment 2
A kind of gravity lever load hook Anti-hook releasing device, as shown in Figure 2,3, comprises the first short slab 11 and the first long slab 12, and described first short slab 11 and the first long slab 12 are bolted to connection or integrally welded connection in acute angle; Also comprise the second short slab 21 and the second long slab 22, described second short slab 21 and the second long slab 22 are bolted to connection or integrally welded connection in acute angle.Wherein, size those skilled in the art of acute angle determine according to actual conditions, realize gravity lever.
Anticreep plate 3 is connected with between described first short slab 11 and the end of the second short slab 12; First short slab 11, first long slab 21 and the second short slab 21, second long slab 22 are that same shape is symmetrical, the junction of the junction of described first short slab 11 and the first long slab 12, described second short slab 21 and the second long slab 22 has through hole 5 in relevant position respectively, in described through hole 5, bolt 4 is installed, is installed on load hook.
During concrete use, curved with the side of coupler body 1 ends contact on described anticreep plate 3, can with the end anastomosis of coupler body 1, well closed load hook.
According to the actual size of suspension hook, Anti-hook releasing device chooses the making of suitable iron plate, not yielding.When being applied to the suspension hook of crane capacity 20t, the Q235 iron plate that Anti-hook releasing device selects 8mm thick makes; When being applied to the suspension hook of crane capacity 5t, the Q235 iron plate that Anti-hook releasing device selects 5mm thick makes.
The scope of protection of present invention is not limited to above detailed description of the invention; to those skilled in the art; the present invention can have various deformation and change, all in design of the present invention and any amendment, the improvement done within principle be equal to replacement and all should be included within protection scope of the present invention.
Claims (7)
1. there is a load hook for gravity lever Anti-hook releasing device, comprise coupler body (1) and the neck of hook (2), it is characterized in that: the junction of described coupler body (1) and the neck of hook (2) is provided with Anti-hook releasing device; Described Anti-hook releasing device comprises the first short slab (11) and the first long slab (12), and described first short slab (11) is connected in acute angle with the first long slab (12); Also comprise the second short slab (21) and the second long slab (22), described second short slab (21) is connected in acute angle with the second long slab (22); Anticreep plate (3) is connected with between described first short slab (11) and the end of the second short slab (12); The junction of the junction of described first short slab (11) and the first long slab (12), described second short slab (21) and the junction of the second long slab (22), described coupler body (1) and the neck of hook (2) has through hole (5) respectively in relevant position, described Anti-hook releasing device is installed on suspension hook by through hole (5) interior hold-down bolt (4), under normality, anticreep plate (3) is against the end of coupler body (1).
2. the load hook with gravity lever Anti-hook releasing device according to claim 1, is characterized in that: described first short slab (11) and the first long slab (12) are bolted to connection or are welded to connect; Described second short slab (21) and the second long slab (22) are bolted to connection or are welded to connect.
3. the load hook with gravity lever Anti-hook releasing device according to claim 2, is characterized in that: described anticreep plate (3) side that is upper and coupler body (1) ends contact is curved.
4. a gravity lever load hook Anti-hook releasing device, is characterized in that: comprise the first short slab (11) and the first long slab (12), and described first short slab (11) is connected in acute angle with the first long slab (12); Also comprise the second short slab (21) and the second long slab (22), described second short slab (21) is connected in acute angle with the second long slab (22); Anticreep plate (3) is connected with between described first short slab (11) and the end of the second short slab (12); The junction of the junction of described first short slab (11) and the first long slab (12), described second short slab (21) and the second long slab (22) has through hole (5) respectively in relevant position, be provided with bolt (4) in described through hole (5).
5. gravity lever load hook Anti-hook releasing device according to claim 4, is characterized in that: described anticreep plate (3) side that is upper and coupler body (1) ends contact is curved.
6. the gravity lever load hook Anti-hook releasing device according to claim 4 or 5, is characterized in that: described first short slab (11) and the first long slab (12) are bolted to connection or are welded to connect; Described second short slab (21) and the second long slab (22) are bolted to connection or are welded to connect.
7. gravity lever load hook Anti-hook releasing device according to claim 6, is characterized in that: when being applied to the suspension hook of crane capacity 20t, and the Q235 iron plate that Anti-hook releasing device selects 8mm thick makes; When being applied to the suspension hook of crane capacity 5t, the Q235 iron plate that Anti-hook releasing device selects 5mm thick makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510295766.1A CN104891327A (en) | 2015-06-03 | 2015-06-03 | Lifting hook with gravity lever type anti-unhooking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510295766.1A CN104891327A (en) | 2015-06-03 | 2015-06-03 | Lifting hook with gravity lever type anti-unhooking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104891327A true CN104891327A (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510295766.1A Pending CN104891327A (en) | 2015-06-03 | 2015-06-03 | Lifting hook with gravity lever type anti-unhooking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104891327A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698187A (en) * | 2016-12-05 | 2017-05-24 | 常州中车汽车零部件有限公司 | Lifting hook with gravity self-locking insurance clamp |
| CN107265285A (en) * | 2017-06-27 | 2017-10-20 | 江苏永钢集团有限公司 | A kind of suspension hook |
| CN107265284A (en) * | 2017-06-15 | 2017-10-20 | 合肥海腾软件科技有限公司 | Crane hook anti-drop device |
| CN107902539A (en) * | 2017-10-20 | 2018-04-13 | 德马科起重机械有限公司 | A kind of pressure self-locking formula crane hook |
-
2015
- 2015-06-03 CN CN201510295766.1A patent/CN104891327A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698187A (en) * | 2016-12-05 | 2017-05-24 | 常州中车汽车零部件有限公司 | Lifting hook with gravity self-locking insurance clamp |
| CN107265284A (en) * | 2017-06-15 | 2017-10-20 | 合肥海腾软件科技有限公司 | Crane hook anti-drop device |
| CN107265285A (en) * | 2017-06-27 | 2017-10-20 | 江苏永钢集团有限公司 | A kind of suspension hook |
| CN107902539A (en) * | 2017-10-20 | 2018-04-13 | 德马科起重机械有限公司 | A kind of pressure self-locking formula crane hook |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150909 |