Double-safety adjustment hook for length-adjustable luggage strap

Abstract

The invention discloses a double-safety adjustment hook for a length-adjustable luggage strap, which mainly includes a luggage strap, an adjustment hook housing, a reinforcing bar and a reinforcing crossbeam, wherein the luggage strap is penetrated into a strap inlet hole arranged at the bottom of the adjustment hook housing, penetrated through a strap passage, and passed through a U-turn and through a turn bypassing hole fixed on the reinforcing crossbeam, a strap clamping groove having bevelled teeth on both side walls thereof is arranged below the turn bypassing hole, the luggage strap is passed through the turn bypassing hole into the strap clamping groove and penetrated through the bevelled teeth, and finally exits from a strap outlet hole arranged at the bottom of the adjustment hook housing.

Claims

1. A double-safety adjustment hook for a length-adjustable luggage strap, comprising a luggage strap, an adjustment hook housing, a reinforcing bar and a reinforcing crossbeam, wherein the luggage strap is penetrated into a strap inlet hole arranged at the bottom of the adjustment hook housing, penetrated through a strap passage, and passed through a U-turn and through a turn bypassing hole fixed on the reinforcing crossbeam, a strap clamping groove having bevelled teeth on both side walls thereof is arranged below the turn bypassing hole, the luggage strap is passed through the turn bypassing hole into the strap clamping groove and penetrated through the bevelled teeth, and finally exits from a strap outlet hole arranged at the bottom of the adjustment hook housing, and a free adjustment of the actually desired length of the luggage strap is achieved by controlling the length of the luggage strap that exits from the strap outlet hole; and one end of the luggage strap that exits from the strap outlet hole is covered with a clamping cap.

2. The double-safety adjustment hook for a length-adjustable luggage strap according to claim 1, wherein the bevelled teeth are symmetrically disposed on the both side walls of the strap clamping groove.

3. The double-safety adjustment hook for a length-adjustable luggage strap according to claim 1, wherein the reinforcing bar comprises a structure that matches that of an upper part of the adjustment hook housing so that the reinforcing bar can be enclosed in the adjustment hook housing, and a tail end of the reinforcing bar is bent to form the reinforcing crossbeam for fixing the turn bypassing hole.

4. The double-safety adjustment hook for a length-adjustable luggage strap according to claim 1, wherein an upper part of the adjustment hook housing is bent to form a hook head which is elliptical.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic structural view of the invention;

(2) FIG. 2 is a schematic structural view of an adjustment hook;

(3) FIG. 3 is a schematic structural view of a reinforcing bar; and

(4) FIG. 4 is a bottom structural view of the invention.

(5) Description of reference numerals: luggage strap 1; adjustment hook housing 2; strap inlet hole 3; strap passage 4; reinforcing bar 5; reinforcing crossbeam 6; turn bypassing hole 7; strap clamping groove 8; bevelled teeth 9; strap outlet hole 10; clamping cap 11; hook head 12.

DETAILED DESCRIPTION OF THE INVENTION

(6) The invention will be described below in detail with reference to the drawings.

(7) Embodiment: as shown in the Figures, the double-safety adjustment hook for a length-adjustable luggage strap mainly comprises a luggage strap 1, an adjustment hook housing 2, a reinforcing bar 5 and a reinforcing crossbeam 6, wherein the luggage strap 1 is penetrated into a strap inlet hole 3 arranged at the bottom of the adjustment hook housing 2, penetrated through a strap passage 4, and passed through a U-turn and through a turn bypassing hole 7 fixed on the reinforcing crossbeam 6, a strap clamping groove 8 having bevelled teeth 9 on both side walls thereof is arranged below the turn bypassing hole 7, the luggage strap 1 is passed through the turn bypassing hole 7 into the strap clamping groove 8 and penetrated through the bevelled teeth 9, and finally exits from a strap outlet hole 10 arranged at the bottom of the adjustment hook housing 2, and the free adjustment of the actually desired length of the luggage strap is achieved by controlling the length of the luggage strap 1 that exits from the strap outlet hole 10; one end of the luggage strap 1 that exits from the strap outlet hole 10 is covered with a clamping cap 11 for thickening an head end of the luggage strap 1, so that the head end of the luggage strap 1 is greater than the diameter of the strap outlet hole 10, thereby preventing the luggage strap 1 from sliding out of the bevelled teeth 9 and being unhooked; and the bevelled teeth 9 have the effect of tighter clamping as the luggage strap 1 is pulled more tightly, and provide double safety together with the clamping cap 11. In addition, when the adjustment hook is not used, the luggage strap 1 can be pulled out, so that the adjustment hook and the luggage strap 1 are separately placed in a luggage case to reduce the space occupied, and hence convenient to carry and use.

(8) Preferably, the bevelled teeth 9 are symmetrically disposed on the both side walls of the strap clamping groove 8.

(9) Preferably, the structure of the reinforcing bar 5 matches that of an upper part of the adjustment hook housing 2 so that the reinforcing bar can be enclosed in the adjustment hook housing 2, and a tail end of the reinforcing bar 5 is bent to form the reinforcing crossbeam 6 for fixing the turn bypassing hole 7. When goods are bound by the luggage strap 1 with a greater pulling force, the stress is mainly on the reinforcing crossbeam 6, and hence the adjustment hook housing 2 is not easily cracked and broken.

(10) Preferably, an upper part of the adjustment hook housing 2 is bent to form a hook head 12 which is elliptical to prevent the human body from being scratched.

(11) It should be understood that, for those skilled in the art, the equivalent replacements or changes of the technical solutions and the concept of the invention should fall within the protection scope of the appended claims of the invention.