CN202729578U - Grab hook with self-locking mechanism - Google Patents
Grab hook with self-locking mechanism Download PDFInfo
- Publication number
- CN202729578U CN202729578U CN 201220287229 CN201220287229U CN202729578U CN 202729578 U CN202729578 U CN 202729578U CN 201220287229 CN201220287229 CN 201220287229 CN 201220287229 U CN201220287229 U CN 201220287229U CN 202729578 U CN202729578 U CN 202729578U
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- China
- Prior art keywords
- pin
- self
- locking mechanism
- hook
- lug
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Abstract
The utility model discloses a grab hook with a self-locking mechanism, which overcomes the defect the strength of a hanging rod is weakened as the grab hook device in the prior art is provided with a transverse through hole on the middle part of the hanging rod. The utility model provides a grab hook with a self-locking mechanism, which is simple in structure, effective, convenient and safe to use. The grab hook comprises a hanging rod and a lifting hook which is arranged at the lower end part of the hanging rod, wherein a rotary type self-locking mechanism is arranged at the mouth part of the lifting hook; the rotary type is a type that a rotary member rotates around a support point; and the rotary member is provided with a return device. The grab gook is provided with the self-locking mechanism, so that the rotary member is used to automatically lock the mouth part of the lifting hook; moreover, the grab hook with the self-locking mechanism is very convenient to operate, simple in structure and low in processing and manufacturing cost.
Description
Technical field
The utility model belongs to weight-lifting equipment attachment technique field, is specifically related to a kind of load hook.
Background technology
Weight-lifting equipment is when lifting cargo, and safety is the first major issue that is critical, and relevant national standard has many regulations to this, comprising prevent that lifting rope from throwing off from suspension hook improperly; To this, prior art has many relevant measures, but always has such or such defective.
China Patent No. ZL200580015037.0 for example, name is called the patent of invention of " lifting hook ", hook in a kind of hoisting device is disclosed, hook is that lifting gear is placed on the type that wherein also discharges from described hook by the hook opening, here hook provides and is arranged to longitudinally displacement cutting out the lock bolt of hook opening, and the hook lock bolt locks in position when the hook opening is closed here.This lifting hook is established a cross through hole at the suspension rod position of suspension hook, and the release bolt such as the bolt shape is set in through hole, and release bolt stretches out through hole and is pressed in the pit of suspension hook end oral area with the locking suspension hook.This structure is established cross through hole at the suspension rod position, weakened the intensity of suspension rod, and when the processing through hole, also can cause through-hole surfaces to damage, especially the junction, border of square through hole inside, produce easily internal stress and stress and concentrate, cause easily suspension rod after repeatedly stressed, to produce in this junction, border and ftracture, and this itself is exactly a great potential safety hazard, and may be to have an accident at the half way that lifts by crane, so be more dangerous potential safety hazard.
In fact, deviating from of lifting rope is because in the moment that is about to lifting but does not also lift by crane, because lifting rope also is in relaxed state, because elastic force and up resilience, can not effectively be hooked on the suspension hook bottom, if rashly lifting this moment is very easily held out suspension hook with lifting rope, cause the accident, yet the lifting rope that is in relaxed state being kept off in the bottom of suspension hook, is not to need very large pressing force, and this point also should attention when design suspension hook locking device.
Summary of the invention
The utility model technical issues that need to address are that the lifting hook that overcomes prior art is established the defective that cross through hole weakens at the suspension rod position, a kind of effective, easy to use safe suspension hook that is provided with self-locking mechanism simple in structure is provided.
The purpose of this utility model is achieved by following technical proposals: a kind of lifting hook that is provided with self-locking mechanism, comprise the suspension hook that suspension rod and its bottom are provided with, the oral area of described suspension hook is provided with the self-locking mechanism of rotation, described rotation is the rotation that tumbler rotates around a fulcrum, and tumbler is provided with reset attachment.
The oral area of suspension hook is provided with self-locking mechanism, and in the time the lifting rope of Under-Slung Loads will being hung into the suspension hook oral area, the rotation self-locking mechanism for tumbler rotates around a fulcrum can rotate by tumbler and put into first lifting rope, and then tumbler resets and automatically the suspension hook oral area blocked; For the crooked rotation self-locking mechanism of tumbler self bending, tumbler can bending gets around, and allows lifting rope be able to by and enters the suspension hook oral area, and then the tumbler automatic rebounding blocks the suspension hook oral area.
After lifting puts in place, can utilize manual or any implements to press tumbler, then tumbler just can be dodged so that lifting rope is deviate from; When not being subject to External Force Acting, self-locking mechanism is in normally off; When being subject to normal bottom-up External Force Acting, self-locking mechanism still is in locking states.
As preferably, the cross section at the position, stage casing of described two suspension hooks that are arranged on the suspension rod bottom is I-shape construction, and the suspension hook tail end is globosity.I-shape construction can under the prerequisite that guarantees the suspension hook bending strength, play the effect that alleviates suspension hook weight.
As preferably, described self-locking mechanism is made of link span and pin, link span is fixedly connected on the middle part of described suspension rod, the outer peripheral face of link span is provided with lug, pin has an end to be connected by bearing pin with the lug of link span, bearing pin is provided with the pin reduction torsion spring, and the other end of pin is for being pressed on the cantilever end of suspension hook tail end inboard.
As preferably, described pin is the sheet metal component of the wide inswept in rear end, the upper side edge of sheet metal component is provided with the perpendicular type flanging, the rear end of sheet metal component is connected with pin shaft hole on the lug that is located at link span by bearing pin, described pin reduction torsion spring is enclosed within on the bearing pin, the pin reduction torsion spring has an end to be against the side of lug, and the other end of pin reduction torsion spring is against the downside of perpendicular type flanging.
As preferably, described link span is circular ring structure, and the outer peripheral face of annulus is arranged with two lugs, radially being provided with in addition two symmetrical fixing screw holes and being furnished with fix screw along annulus.
As preferably, described annulus is spliced to form by two semicircular ring, and the end of each semicircular ring all is provided with lug, and two semicircular ring connect with bolt by the lug of correspondence; Also be provided with pin on the lug and connect pin-and-hole or screw.
The beneficial effects of the utility model are:
1, is provided with self-locking mechanism, uses tumbler and automatically block the suspension hook oral area;
2, operation is very easy;
3, structure is simple more than prior art, and the processing and manufacturing cost is low.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Among the figure, suspension rod 1; Suspension hook 2; Suspension hook oral area 21; Suspension hook tail end 22; Rotation self-locking mechanism 3; Link span 31; Lug 311; Pin 32; Perpendicular type flanging 321; Bearing pin 33; Pin reduction torsion spring 34; Fix screw 35.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiments the utility model is further described.
Embodiment 1: as shown in Figure 1, a kind of lifting hook that is provided with self-locking mechanism comprises suspension rod 1, and its bottom is provided with suspension hook 2, and the oral area of suspension hook 2 is provided with the rotation self-locking mechanism 3 that tumbler rotates around a fulcrum, and tumbler is provided with reset attachment.
The oral area of suspension hook 2 is provided with self-locking mechanism, in the time the lifting rope of Under-Slung Loads will being hung into suspension hook oral area 21, rotation self-locking mechanism for tumbler rotates around a fulcrum can rotate by tumbler and put into first lifting rope, and then tumbler resets and automatically the suspension hook oral area blocked.
After lifting puts in place, can utilize manual or any implements to press tumbler, then tumbler just can be dodged so that lifting rope is deviate from; When not being subject to External Force Acting, self-locking mechanism is in normally off; When being subject to normal bottom-up External Force Acting, self-locking mechanism still is in locking states.
The cross section at position, stage casing that is arranged on two suspension hooks of suspension rod bottom is I-shape construction, and suspension hook tail end 22 is globosity.
Described self-locking mechanism is made of link span 31 and pin 32, pin 32 is tumbler, link span 31 is fixedly connected on the middle part of suspension rod 1, the outer peripheral face of link span 31 is provided with lug 311, pin 32 has an end to be connected by bearing pin 33 with the lug 311 of link span 31, bearing pin 33 is provided with pin reduction torsion spring 34, and the other end of pin 32 is for being pressed on the cantilever end of suspension hook tail end inboard.
Pin 32 is the sheet metal component of the wide inswept in rear end, the upper side edge of sheet metal component is provided with perpendicular type flanging 321, the rear end of sheet metal component is connected with pin shaft hole on the lug 311 that is located at link span 31 by bearing pin 33, pin reduction torsion spring 34 is enclosed within on the bearing pin 33, pin reduction torsion spring 34 has an end to be against the side of lug 311, and the other end of pin reduction torsion spring 34 is against the downside of perpendicular type flanging 321.
Link span 31 is circular ring structure, and the outer peripheral face of annulus is arranged with two lugs, radially being provided with in addition two symmetrical fixing screw holes and being furnished with fix screw 35 along annulus.
Concrete, annulus is spliced to form by two semicircular ring, and the end of each semicircular ring all is provided with lug, and two semicircular ring connect with bolt by the lug of correspondence; Also be provided with pin on the lug and connect pin-and-hole or screw.
The utility model can use in various load hooks, has to use the self-locking mechanism that tumbler blocks the suspension hook oral area automatically, operate very easy, simple in structure, the advantage that the processing and manufacturing cost is low.If those skilled in the art does simple the modification or replacement to the foregoing invention content, such change can not think to break away from scope of the present utility model, and all will be included within the scope of claim of the present utility model the apparent modification of those skilled in the art like this.
Claims (6)
1. a lifting hook that is provided with self-locking mechanism comprises the suspension hook that suspension rod and its bottom are provided with, and it is characterized in that the oral area of described suspension hook is provided with the self-locking mechanism of rotation, and described rotation is the rotation that tumbler rotates around a fulcrum, and tumbler is provided with reset attachment.
2. the lifting hook that is provided with self-locking mechanism according to claim 1 is characterized in that, the cross section at the position, stage casing of the described suspension hook that is arranged on the suspension rod bottom is I-shape construction, and the suspension hook tail end is globosity.
3. the lifting hook that is provided with self-locking mechanism according to claim 1 and 2, it is characterized in that, described self-locking mechanism is made of link span and pin, link span is fixedly connected on the middle part of described suspension rod, the outer peripheral face of link span is provided with lug, pin has an end to be connected by bearing pin with the lug of link span, and bearing pin is provided with the pin reduction torsion spring, and the other end of pin is for being pressed on the cantilever end of suspension hook tail end inboard.
4. the lifting hook that is provided with self-locking mechanism according to claim 3, it is characterized in that, described pin is the sheet metal component of the wide inswept in rear end, the upper side edge of sheet metal component is provided with the perpendicular type flanging, the rear end of sheet metal component is connected with pin shaft hole on the lug that is located at link span by bearing pin, described pin reduction torsion spring is enclosed within on the bearing pin, and the pin reduction torsion spring has an end to be against the side of lug, and the other end of pin reduction torsion spring is against the downside of perpendicular type flanging.
5. the lifting hook that is provided with self-locking mechanism according to claim 3 is characterized in that, described link span is circular ring structure, and the outer peripheral face of annulus is arranged with two lugs, radially being provided with in addition two symmetrical fixing screw holes and being furnished with fix screw along annulus.
6. the lifting hook that is provided with self-locking mechanism according to claim 5 is characterized in that, described annulus is spliced to form by two semicircular ring, and the end of each semicircular ring all is provided with lug, and two semicircular ring connect with bolt by the lug of correspondence; Also be provided with pin on the lug and connect pin-and-hole or screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287229 CN202729578U (en) | 2012-06-19 | 2012-06-19 | Grab hook with self-locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287229 CN202729578U (en) | 2012-06-19 | 2012-06-19 | Grab hook with self-locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202729578U true CN202729578U (en) | 2013-02-13 |
Family
ID=47655300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220287229 Expired - Fee Related CN202729578U (en) | 2012-06-19 | 2012-06-19 | Grab hook with self-locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202729578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821101A (en) * | 2018-07-11 | 2018-11-16 | 东莞市联洲知识产权运营管理有限公司 | The suspension hook of structure optimization on a kind of crane |
-
2012
- 2012-06-19 CN CN 201220287229 patent/CN202729578U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821101A (en) * | 2018-07-11 | 2018-11-16 | 东莞市联洲知识产权运营管理有限公司 | The suspension hook of structure optimization on a kind of crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20140619 |
|
| EXPY | Termination of patent right or utility model |