CN2209138Y

CN2209138Y - Automatic rope releasing hook

Info

Publication number: CN2209138Y
Application number: CN 94235586
Authority: CN
Inventors: 施志红
Original assignee: YANTAI PORT OFFICE
Current assignee: YANTAI PORT OFFICE
Priority date: 1994-10-21
Filing date: 1994-10-21
Publication date: 1995-10-04
Anticipated expiration: 2004-10-21

Abstract

The utility model relates to an automatic rope releasing hook composed of a hook body 4, a balance weight 3, a pin shaft 1 and a u-shaped ring 2. The distance A from the pin shaft 1 to the inner circular arc of the u-shaped ring 2 is more than the distance B that the balance weight 3 going from the pin shaft 1 to the C rim. The distance A from the pin shaft 1 to the inner circular arc of the u-shaped ring 2 is also more than the distance D from the pin shaft 1 to the E rim. If the pin shaft 1 is used as an action spot, the moment of the balance weight 3 is more than that of the hook body 4. The connecting line among the center of gravity of the balance weight 3, the hook body 4 and the pin shaft 1 forms an obtuse angle in the bending direction of the hook body. The automatic rope releasing hook has simple structure, so that the automatic rope releasing hook has the advantages of low cost and easy manufacture. The utility model can automatically release ropes, so that the consumption of man power and occurring frequency of safety misadventure are reduced.

Description

Automatic rope releasing hook

The utility model relates to a kind of automatic rope picking hook-head, is used for hoisting operation.

In the lifting industry, all to hang the rope of bundle weight with gib head, when the lifting beginning with manually hanging up rope to gib head, after weight was hung the destination, by manually taking rope, it was many to consume manpower so again, and, also increased by the frequency of industrial injury because people and weight touch opportunity are many.Though all there is complex structure in existing now various automatic rope picking hook-heads, in-use performance is bad, and therefore the shortcoming that cost is also high can not popularized.

The purpose of this utility model provides a kind of automatic rope picking hook-head.

The purpose of this utility model is achieved in that in the automatic rope picking hook-head that is made of hook body, counterweight, bearing pin, clevis eye, and the distance that makes bearing pin circular arc in the clevis eye is greater than the distance of bearing pin to counterweight C limit, also greater than by the distance of bearing pin to hook body E limit; With the bearing pin is point of action, and the moment of counterweight is greater than the moment of hook body; Counterweight center of gravity and hook body center of gravity become the obtuse angle with the line of bearing pin at hook body bending direction.

The gib head structure that the utility model provides is very simple, therefore makes easily, and cost is also low, and its performance is very good, hoisting hook finishes weight, and it can come off rope automatically and not need manually to pluck rope, thereby has reduced manpower consumption and the generation that has reduced safety misadventure.

Further introduce the utility model below by accompanying drawing:

Accompanying drawing 1 is the utility model orthographic drawing when the hook body hangs up the no-load rope;

Accompanying drawing 2 is the utility model figure of lateral projection when the hook body hangs up the no-load rope;

Accompanying drawing 3 is the utility model hook figure of lateral projection when hoisting heavy;

Constitution diagram when accompanying drawing 4 has been removed rope for the utility model hook body.

Can see that from accompanying drawing the hook body on the utility model is just the same with common gib head of reusing, there is a hook front, and there is eye at the rear portion.In the utility model, be equipped with bearing pin 1 in the eye.Afterbody at hook body 4 is equipped with reprovision 3, and is equipped with U-shaped hook 2 on bearing pin 1, has been hung with on one's body at hook and has reused rope 5.From accompanying drawing, can see the center of gravity W of hook body 4 _IAnd the moment that forms between the bearing pin 1 will be much smaller than counterweight center of gravity W _IIAnd the moment that forms between the bearing pin 1; And while counterweight center of gravity W _II, hook body center of gravity W _ITo form the obtuse angle at hook body bending direction with the line of bearing pin 1; Simultaneously, by bearing pin 1 to the distance A the interior circular arc of U-shaped hook 2 greater than by bearing pin 1 to the C limit of counterweight 3 apart from B.

In use, the rope 5 that is not subjected to the weight effect is hung on the hook body 4, this moment is because the moment between counterweight 3 and the bearing pin adds the moment of formation between the rope 5 that is not subjected to the weight effect and the bearing pin 1 greater than hook body 4, therefore, counterweight 3 is below bearing pin 1, hook body 4 is pressed in rope 5 on the clevis eye 2, as shown in Figure 1 and Figure 2 state.And when when lifting, because the weight effect, hook body 4 left behind turns over counterweight 3 from clevis eye 2, forms as Fig. 3 shape.And when weight is winched to the destination, weight is put down, rope 5 is no longer stressed, at this moment because the center of gravity W of counterweight 3 _IIAnd the right-handed moment between the bearing pin 1 is greater than hook body 4 center of gravity W _IAdd the left-hand revolution moment between rope 5 dead weights and the bearing pin 1, make counterweight 3 and hook body 4 do clickwise, therefore also just the rope 5 that is not subjected to extraneous action of gravity is deviate from from hook body 4, form Fig. 4 shape around bearing pin 1.This has just realized plucking automatically the overall process of rope, owing to need not manually remove to pluck rope, has just reduced the manpower consumption and has also reduced the frequency that safety misadventure takes place simultaneously.

Claims

1, a kind of automatic rope picking hook-head is made of hook body, counterweight, bearing pin, clevis eye, it is characterized by:

1. by bearing pin (1) to the distance A of the interior circular arc of clevis eye (2) both greater than by bearing pin (1) to counterweight (3) C limit apart from B, also greater than by the distance D of bearing pin (1) to hook body (4) E limit;

2. be point of action with bearing pin (1), the moment of counterweight (3) is greater than the moment of hook body (4);

3. counterweight (3) center of gravity and hook body become the obtuse angle with the line of bearing pin (1) at hook body bending direction.