Torque wrench device with easy torque adjustment

Abstract

A torque wrench device for easy torque adjustment includes a scale with its rear end locked to a nut of a torque adjustment component. The scale has graduations and numerical values ​​on its surface and is inserted into a torque bar to the bottom opening. A fixing base is fixed to the middle section of the torque bar. A sliding window is formed on the circumference of the fixing base from the inside out, aligning with the bottom opening. A slidable lens is mounted on the sliding window, and a base point is provided on the adjustment release ring. A numbered positioning post and a ring groove are provided near the front of the outer circumference of the handle. A scale ring has numbers marked on its outer circumference and multiple positioning grooves on its inner circumference. When the required number on the scale ring is aligned with the base point, the positioning groove is positioned to the positioning post. An O-ring is then pressed into the ring groove to fix the scale ring. This allows for quick and convenient adjustment without disassembling the handle, using the slidable lens to calibrate larger values ​​and the scale ring to calibrate smaller values.

Claims

1. A torque wrench device with easily adjustable torque value, comprising: A torque wrench includes a wrench head, a torque rod, a pressure spring, a fixed base, a handle, and a torque adjustment assembly. The torque rod is pivotally connected to the rear outer periphery of the wrench head. The pressure spring passes through the inside of the torque rod. The fixed base is fixed to the outer periphery of the torque rod. One side of the handle is inserted into one end of the torque rod, and the other side of the handle is inserted into the torque adjustment assembly. An elongated hole is provided on the handle leading to the interior. The wrench is characterized by: a scale, the rear end of which is secured to a nut of the torque adjustment assembly by a first screw passing through the elongated hole. The scale has graduations and numerical values ​​on its surface. The scale is inserted into the torque rod to adjust the torque. At the bottom opening of the rod, a sliding window is opened from the inside to the outside on the circumference of the fixing seat. The sliding window is aligned with the bottom opening. A marking lens is slidably mounted on the sliding window. A calibration line is provided on the marking lens. An elastic element and an adjustment and release ring are assembled between the fixing seat and the handle. A base point is provided on the adjustment and release ring. A number positioning post and an annular groove are provided near the front end of the outer circumference of the handle. A scale ring is marked with numbers on its outer circumference and has multiple positioning grooves on its inner circumference. The required number of the scale ring is aligned with the base point, and the positioning groove is positioned to the positioning post. Then, an O-ring is pressed into the annular groove to fix the scale ring. The calibration line of the marking lens is calibrated to a larger value and then fixed with a second screw.

2. The torque wrench device with easily adjustable torque value as described in claim 1, wherein a window cover and a panel may be provided above the marking lens at the slide window.

3. The torque wrench device with easily adjustable torque value as described in claim 2, wherein a first ratchet ring is provided at the front end of the handle, a first pin hole is provided at the end of the handle, a second pin hole is provided at the end of the torque adjustment component, the handle is sleeved on the outside of the torque adjustment component, the first and second pin holes are aligned, and a pin rod is passed through the first and second pin holes to fix the handle and the torque adjustment component, a second ratchet ring is provided on the rear side of the adjustment release ring, the first and second ratchet rings are engaged, so that the handle can be rotated in one direction to pressurize and store pressure, and the adjustment release ring can be pulled lightly and released quickly to release single-point pressure or pulled lightly without releasing to release all pressure.

4. The torque wrench device for easy torque adjustment as described in claim 3, wherein the fixed base is provided with a number of guide grooves, the adjustment release ring is provided with a number of guide posts, the guide posts being able to slide within the guide grooves, so that the adjustment release ring can be pulled and released quickly or pulled and held.

5. The torque wrench device with easily adjustable torque value as described in claim 4, wherein the torque adjustment component is provided with a screw for the nut to be screwed in.

6. The torque wrench device with easily adjustable torque value as described in claim 5, wherein one end of the pressure spring faces the wrench head and the other end of the pressure spring abuts against the nut, causing the handle to rotate the screw and advance the nut, and the pressure of the pressure spring is adjustable.

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