CN2058403U

CN2058403U - Hook capable of automatic unhook

Info

Publication number: CN2058403U
Application number: CN 89220226
Authority: CN
Inventors: 李汝光; 兰鹏飞; 王军朝; 曹进元
Original assignee: 59997 TROOPS CHINESE PEOPLE'S LIBERATION ARMY
Current assignee: 59997 TROOPS CHINESE PEOPLE'S LIBERATION ARMY
Priority date: 1989-11-30
Filing date: 1989-11-30
Publication date: 1990-06-20

Abstract

The utility model discloses a hook capable of automatic uncoupling which is characterized in that the utility model is composed of an eccentric hook of the hook body, a positioning lock, a positioning pin and a pin roll, wherein, the eccentric hook has a trend of rotating downwardly along the center of gravity under the action of the deadweight. When the utility model is with zero load, the eccentric hook lies in a locked position because of being locked by the positioning lock which is positioned by the positioning pin. When the utility model is hooked with an object, the positioning lock is pushed aside by the eccentric hook under the gravitational effect of the object, and the positioning pin makes the positioning lock lie in an opening position. After the utility model falls off and the object touches the ground, the force exerted on the eccentric hook by the object vanishes, and the eccentric hook rotates under the action of the deadweight; the mouth of hook is arranged downward and the wire cable automatically uncouples; simultaneously the lower part of the eccentric hook impacts the positioning lock and enables the positioning lock to reset to the locked position, and thereby, an automatic uncoupling is achieved.

Description

Hook capable of automatic unhook

The utility model belongs to the accessory of loading-unload machine.

Be used to lift by crane the suspension hook of article, generally all need manually article to be hung on the suspension hook with steel rope, with hand steel rope is taken from suspension hook after winching to the destination, labour intensity is big, and efficient is low, also has safety hazard.

The purpose of this utility model provides and a kind ofly can improve handling efficiency, safe and reliable suspension hook that can be automatically-unhooked.

Feature of the present utility model is to be made up of coupler body, eccentric hook, location lock, locating dowel pin, bearing pin.The eccentric hook back is equipped with a latch hook, eccentric hook is installed on the coupler body by bearing pin, and the location is locked to hold roller, the curved surface that the other end is made up of three cylinder cambered surfaces are housed, the location lock is connected coupler body by little axle, and the location lock can be around little axle swing when stressed.Locating dowel pin is the square-section, and locating dowel pin one end is equipped with roller, and the other end is contained in the guide, and spring is equipped with in the guide bottom.When unloaded, moving latch hook with eccentric hook with hand hangs over the location and locks on the roller of end, at this moment, horizontal square between the center of gravity of eccentric hook and the bearing pin center is from being a, under eccentric hook deadweight G effect, form a moment M1-aG, make eccentric hook that the trend of clickwise be arranged, and at this moment, the pin that is positioned is again lived surely, overcome the effect of M1, thereby made eccentric hook be in locked position of coupler, after hanging up weight P, suspension hook rises, under the effect of P, form a moment M2-bP with respect to bearing pin, eccentric hook is rotated counterclockwise, back down the location lock, latch hook is thrown off.Locating dowel pin makes the location lock be held open the position.Suspension hook continues to rise, and article are sling.Descending when suspension hook, P was zero after weight landed, under the effect of M1, and the eccentric hook right-hand revolution, the mouth of hook of eccentric hook is downward, and the steel rope of hanging weight comes off automatically.At this moment, the lower camber side of location lock is hit in the bottom of eccentric hook, makes it to recover locked position of coupler.Removed eccentric hook with hand again, made latch hook be hooked in the location and lock on the roller of end.Can proceed lifting operation next time.

Compare with existing suspension hook, the suspension hook that use can be automatically-unhooked, easy to operate, safe and reliable, can alleviate alongshoreman's labour intensity, increase work efficiency.

Fig. 1 be can automatically-unhooked suspension hook the assembling scheme drawing

Fig. 2 is suspension hook locked position of coupler figure

Fig. 3 is suspension hook latch hook open position figure

Fig. 4 is the automatically-unhooked site plan of suspension hook

Describe the embodiment of suspension hook that can be automatically-unhooked in conjunction with the accompanying drawings: suspension hook that can be automatically-unhooked is by shown in Figure 1,1 coupler body, 2 eccentric hooks, 3 location locks, 4 locating dowel pins, 5 bearing pins are formed, the eccentric hook back has a latch hook, eccentric hook is contained on the coupler body with the bearing pin of external diameter Φ=20mm surely, the size of eccentric hook, high h=276mm, wide B=100mm, thickness δ=20mm, the roller that end is equipped with external diameter Φ=18mm, the curved surface that the other end is made up of the cylinder cambered surface of three radius R=6mm are locked in the location.Locating dowel pin is connected on the coupler body with the little axle of external diameter Φ=6mm.Locating dowel pin is made square-section 10mm * 10mm, is contained in the guide, and spring is equipped with in the guide bottom, and the locating dowel pin other end is equipped with the roller of external diameter Φ=12mm.The change in location of location lock, locating dowel pin can be controlled the automatically-unhooked of suspension hook.According to present embodiment make can be automatically-unhooked suspension hook, can lift the weight of 2000kg safely, realize automatically-unhooked.Each part of above-mentioned suspension hook is all made with carbon constructional quality steel 45.Spring in the pin bush is made with the carbon spring steel wires of Φ=1.5mm.According to customer requirement,, can be made into the various weight of lifting by structure of the present utility model and all can realize automatically-unhooked through calculation of strength.

Claims

One kind be used to lift by crane article can be automatically-unhooked suspension hook, feature of the present utility model is to be made up of coupler body, eccentric hook, location lock, locating dowel pin, bearing pin.
2. suspension hook that can be automatically-unhooked as claimed in claim 1 is characterized in that, the eccentric hook back is equipped with a latch hook, and eccentric hook is installed on the coupler body by bearing pin.
3. suspension hook that can be automatically-unhooked as claimed in claim 1 is characterized in that, the location is locked to hold roller is housed, the curved surface that the other end is made up of three cylinder cambered surfaces, and the location lock is connected on the coupler body by little axle.
4. suspension hook that can be automatically-unhooked as claimed in claim 1 is characterized in that locating dowel pin is the square-section, and locating dowel pin one end is equipped with roller, and the other end is assemblied in the guide, and spring is equipped with in the guide bottom.