belt tension adjuster

Abstract

This invention includes a mounting base, a pivot, an adjustment assembly, and a tension wheel. The pivot is rotatably connected to the mounting base and includes a swing arm; the swing arm includes a connecting end and a pushing end positioned opposite each other. The adjustment assembly includes a screw and a tension spring; the screw is screwed into the mounting base and is rotatable relative to the mounting base; one end of the tension spring is connected to the connecting end of the swing arm, and the other end of the tension spring is connected to the screw. The tension wheel is rotatably connected to the pushing end of the swing arm. This invention uses the return force of the tension spring to pull the pivot, and the tension wheel to tighten the belt, solving the problems of excessive physical effort and potential dangers associated with existing belt adjustment methods. It provides a belt tension adjuster that allows for easy adjustment of belt tension and is more convenient for belt adjustment.

Claims

1. A belt tension adjuster, comprising: a mounting base; a pivot rotatably coupled to the mounting base and including a swing arm; the swing arm including a connecting end and a pushing end opposite each other; an adjusting assembly including a screw and a tension spring; the screw being screwed into the mounting base and rotatably movable relative to the mounting base; the tension spring including two opposite ends, one end of the tension spring being connected to the connecting end of the swing arm, and the other end of the tension spring being connected to the screw; and a tension wheel rotatably coupled to the pushing end of the swing arm.

2. The belt tension adjuster as claimed in claim 1, wherein the mounting base includes a base plate and at least one adjustment hole; each adjustment hole is an elongated hole extending through the base plate.

3. The belt tension adjuster as claimed in claim 2, wherein the mounting base includes an end plate disposed on the base plate; the screw is screwed into the end plate of the mounting base and passes through the end plate.

4. The belt tension adjuster as claimed in claim 3, wherein the mounting base includes a locking nut; the locking nut is fixed to the end plate; and the screw is screwed into the end plate and the locking nut.

5. The belt tension adjuster as claimed in claim 4, wherein the adjusting assembly includes a hook; the hook is fixed to one end of the screw; and the end of the tension spring connected to the screw is hooked to the hook.

6. The belt tension adjuster as claimed in claim 5, wherein the mounting base includes a pivot tube; the pivot member includes a pivot shaft; the pivot member passes through the pivot tube of the mounting base via its pivot shaft; and a bolt passes through a washer and is screwed onto the pivot shaft.

7. The belt tension adjuster as claimed in claim 6, wherein the mounting base includes a vertical plate; the base plate includes a front end and a rear end positioned opposite each other; the vertical plate is disposed on the base plate, and the height of the vertical plate gradually decreases from the front end of the base plate toward the end plate; the pivot tube protrudes from the vertical plate and is close to the front end of the base plate.

8. The belt tension adjuster as claimed in claim 7, wherein the pivot of the pivot member is provided at the middle section of its swing arm, and the distance between the pivot and the connecting end of the swing arm is less than the distance between the pivot and the pushing end of the swing arm.

9. The belt tension adjuster as claimed in any one of claims 1 to 8, wherein the pivot member includes a wheel axle protruding from the pivot arm; the tension wheel is fitted onto the wheel axle, and at least one bearing is provided between the tension wheel and the wheel axle.

10. The belt tension adjuster as claimed in any one of claims 1 to 8, wherein the adjusting assembly includes a retaining nut; the retaining nut is screwed into the screw and is movable along the screw.

Images