CN2525041Y - Rope tightening device - Google Patents

Abstract

The utility model relates to a rope tightening device which comprises a handle, a ratchet wheel, an upper ratchet pawl and a lower ratchet pawl, wherein a support arm and a movable arm are connected through a half-moon shaft on which the ratchet wheel is arranged. The upper ratchet pawl is arranged in a gap of the movable arm, and the lower ratchet pawl is arranged in a gap of the support arm. A nylon tape and a hook are arranged on the lower part of the support arm through cylindrical pins. A compression spring is arranged on a sliding post of the lower ratchet pawl. One end of the spring is arranged on the movable arm, and the other end is clamped on the upper ratchet pawl. In addition, a long nylon tape is connected with the hook. The utility model has the characteristic that goods can be fast tightened by the rope tightening device, and one rope can be tightened in a dozen of seconds; the tensile strength is large, and the rope tightening device can bear tension of three tons; the operation is laborsaving, due to a lever existing in the rope tightening device, the rope tightening device can generate tension of 600 kilometers calculated by man tension of 50 kilometers, and the labor can be saved by more than 12 times; the structure of the is simple, and the rope tightening device is easy to popularize.

Description

Boomer

Technical field: the utility model relates to a kind of vehicle cargo boomer.

Background technology: at present, in the goods transport, the binding of goods mainly is to rely on manpower to beat to withhold, and labour intensity is big, and efficient is low, and goods is loosening easily in long-distance transport, causes unnecessary loss to the owner of cargo often.

Summary of the invention: the purpose of this utility model is to provide a kind of boomer of restraint of loads fast at the deficiencies in the prior art to people.For achieving the above object, the utility model adopts following technical proposals: boomer comprises handle (1), ratchet (5), last ratchet (3), following ratchet (7), nylon tape (11) and long nylon tape (14).Concrete structure is: link together by first quarter moon axle (6) between hold-down arm (9) and movable arm (2), ratchet (5) is housed on the first quarter moon axle (6), last ratchet (3) is contained in the slit of movable arm (2), following ratchet (7) is contained in the slit of hold-down arm (9), nylon tape (11) and hook (12) are contained in the bottom of hold-down arm (9) by straight pin (10), stage clip (8) is contained in down on the traveller of ratchet (7), and spring (4) one ends are contained on the movable arm (2); The other end is stuck on the ratchet (3), also has long nylon tape (14) and hook (13) to connect together in addition.

Characteristics of the present utility model are: 1, fastening goods speed is fast, and tens seconds can a fastening rope.2, tensile strength is big, can bear 3 tons of pulling force.3, rapid operation because there is leverage its inside, is that 50 kilograms of calculating can produce 600 kilograms pulling force with people's pulling force, can be laborsaving more than 12 times.This product structure is simple, be easy to promote.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of the right hook of the utility model.

Fig. 3 is a running condition scheme drawing of the present utility model.

With reference to Fig. 1,2,3, boomer comprises handle 1, ratchet 5, last ratchet 3, following ratchet 7.Concrete structure is: link together by first quarter moon axle 6 between hold-down arm 9 and movable arm 2, ratchet 5 is housed on the first quarter moon axle 6, last ratchet 3 is contained in the slit of movable arm 2, following ratchet 7 is contained in the slit of hold-down arm 9, nylon tape 11 and hook 12 are contained in the bottom of hold-down arm 9 by straight pin 10, stage clip 8 is contained in down on the traveller of ratchet 7, and spring 4 one ends are contained on the movable arm 2; The other end is stuck on the ratchet 3, also has long nylon tape 14 and hook 13 to connect together in addition.

Principle of work: during fastening goods, the two ends hook 12,13 of boomer is hung on the automobile both sides, one end of long nylon rope 14 inserts in the slit of first quarter moon axle 6, move handle 1, drive movable arm 2 and fluctuate, ratchet 3 shook on movable arm 2 fluctuated and drives, last ratchet 3 shakes and drives ratchet 5 rotations, ratchet 5 rotates and drives 6 rotations of first quarter moon axle, and first quarter moon axle 6 rotates long nylon tape 14 is wrapped on the first quarter moon axle 6, till fastening good goods.The effect of following ratchet 7 is to prevent the ratchet reversing when fastening goods.When needs unclamp goods, move handle 1 to uppermost position, this moment up and down ratchet simultaneously and ratchet throw off, at this moment under the expansive force effect of rope, the first quarter moon axle is auto-reverse, rope moment unclamps.

Claims (1)

1, a kind of boomer, comprise handle (1), ratchet (5), last ratchet (3), following ratchet (7), nylon tape (11) and long nylon tape (14), it is characterized in that: between hold-down arm (9) and movable arm (2), link together by first quarter moon axle (6), ratchet (5) is housed on the first quarter moon axle (6), last ratchet (3) is contained in the slit of movable arm (2), following ratchet (7) is contained in the slit of hold-down arm (9), nylon tape (11) and hook (12) are contained in the bottom of hold-down arm (9) by straight pin (10), stage clip (8) is contained in down on the traveller of ratchet (7), and spring (4) one ends are contained on the movable arm (2); The other end is stuck on the ratchet (3), also has long nylon tape (14) and hook (13) to connect together in addition.

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