Hose clamp capable of being quickly locked

Abstract

The invention discloses a hose clamp capable of being quickly locked. The hose clamp comprises a support, a screw and a strap. A cavity is arranged on the support, the screw is mounted in the cavity, a fixed end of the strap is fixedly connected with the support, a movable end of the strap and the fixed end of the strap are enclosed to form a ring and then penetrate out of the cavity, a plurality of slots meshed with the screw in a locking state are arranged on the strap, the screw comprises a screw head, screw necks, threads and a screw tail, the screw necks are respectively positioned among the screw head and the threads and among the screw tail and the threads, and sections of the two screw necks are gradually reduced axially. In a pre-locking state, the small sections of the screw necks are in contact with the support, a fit clearance is increased, the screw is completely prevented from being in contact with the strap, accordingly, the strap can move freely, and in other words, quick action can be implemented; and in the locking state, the large sections of the screw necks are in contact with the support, the fit clearance is reduced, the screw is meshed with the strap, and the hose clamp can be normally locked.

Description

technical field [0001] The invention relates to the technical field of throat hoops, in particular to a fast-locking throat hoop. Background technique [0002] As is well known, the throat hoop is a fastener at the joint between soft and hard pipes. At present, throat clamps are roughly divided into three types: British type, American type and German type. They are mainly composed of supports, screws and hoops. The throat clamps work on the principle of worm gear transmission. The throat clamps have a wide range of applications, and are resistant to torsion and pressure. The torsion torque of the throat hoop is balanced, the locking is firm and tight, and the adjustment range is large. However, every time the screw rotates one revolution, it drives the strap to lock one tooth. This working characteristic has a problem of low efficiency. During the pre-locking stage, the strap cannot move quickly. When there are many locking teeth (such as 100 teeth), it will inevitably con...

AI Technical Summary

Problems solved by technology

However, every time the screw rotates one revolution, it drives the strap to lock one tooth. This working characteristic has a problem of low efficiency. During the pre-locking stage, the strap cannot move quickly. When there are many locking teeth (such as 100 teeth), it will inevitably consume more time, it is difficult to achieve fast locking, and the work efficiency is reduced

[0003] In the prior art, the known quick-locking solution of throat hoop, such as a quick-release hoop disclosed in Chinese invention patent specification CN202348858U, realizes Fast locking and loosening, however, this reduces the bearing's resistance to damage

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