| 摘要 |
<p>A torque wrench comprises a wrench head (1) and a wrench body (2). The wrench head (1) is arranged at the upper end of the wrench body (2). An elastic component (3), a release mechanism (4), and a torque resistance lever (5) are sequentially arranged in the wrench body (2) along the axial direction of the wrench body (2) from bottom to top. The elastic component (3) is connected with the release mechanism (4), the release mechanism (4) is connected with the torque resistance lever (5), the front end of the torque resistance lever (5) is connected with the wrench head (1), and the torque resistance lever (5) is connected with the upper end of the wrench body (1). By the aid of a large-diameter bearing wheel without a support and a rolling surface, an unnecessary side load on a force spring, due to the eccentric compression of an existing bearing wheel, can be reduced, and an extension stroke for an impulsive signal can be provided under the condition that the yield strength of a compression spring is not being surpassed.</p> |
