A torque wrench is provided, wherein the torque wrench includes: a main body defining an axial direction and including a work portion and a housing connected to each other; a grip rotatably connected to an end of the housing; a torque transmission mechanism including a torque adjustment member, the torque adjustment member being rotatably disposed in the main body; a torque sensing mechanism including a sensing assembly and an output port, the output port being configured to be electrically connected to an output unit to receive and transmit a torque sensing signal; an adjustment mechanism including a rotatable member, a driving member and a limitation member, the grip being disposed around the rotatable member and rotatable with the rotatable member, the rotatable member being disposed around the driving member and rotatable with the driving member.

An electric ratchet wrench includes a tool head unit, a wrench body unit, an output unit, an electric unit, and a sensor unit. The wrench body unit includes a main body portion, and an installation portion connected between the tool head unit and the main body portion. The output unit includes a head driver mounted on the tool head unit, and being configured to rotate in a selected direction and output rotational energy. The sensor unit includes a transmitting handle pivotably connected to the main body portion, and at least one sensor module disposed between the main body portion and the transmitting handle. When the transmitting handle is driven by an external force to pivot relative to the main body portion, the sensor module outputs a torque reading of the external force.

Torque wrench provided with a tightening angle measurement sensor comprising a body (11), containing control circuits and an electronic processing unit having a handle (12) at one end for gripping by an operator who performs the tightening, and an arm (13) at the other end, said arm, at its free end, comprises a seat (16) in which there are alternatively engageable a plurality of inserts suitable for engaging the tool with a corresponding type and/or size of a mechanical member on which the tool is intended to act to perform a tightening operation, there being a gyroscope for measuring the tightening angle on said arm. The electronic processing unit of the wrench of means for compensating for deviations in the value of the received angle signal of the gyroscope, based on a compensation algorithm that corrects the value of the zero angle signal received from the gyroscope.

A T-torque wrench contains: a body including a horizontal handle and a vertical extension. The vertical extension has a fitting connector formed on a bottom thereof and configured to fit with sockets of various sizes, and the vertical extension has a strain gauge arranged on one end thereof so as to detect operation torques of the T-torque wrench, the horizontal handle has a tire-pressure detection connector connected on one end thereof. The body includes a casing covered thereon and includes a digital processing unit electrically connected with the strain gauge of the vertical extension and the tire-pressure detection connector of the horizontal handle, the casing includes a display module arranged thereon and electrically connected with the digital processing unit, and the casing includes a control module arranged thereon between the display module and the horizontal handle, wherein the control module is electrically connected with the digital processing unit.

A socket having functions of torque sensing, angle sensing, and signal transmitting is provided. The socket includes a socket body, a circuit board module, a deformation strain sensing unit, an output/input module, a power supply module, and a protection device. Wherein, the socket body has variable structures to accommodate the circuit board module, the deformation strain sensing unit, the power supply module and the output/input module, and to protect the accommodated elements by the protection device. Accordingly, the socket has the functions of torque sensing, angle sensing, and signal transmitting.

A calibration monitoring system is provided to automatically monitor the calibration status of tools and other inventory items, such as upon the items being issued from or returned to the automated calibration monitoring system. The system identifies an inventory item, for example a calibrated torque wrench or other calibrated tool identified based on a unique identifying tag attached thereto. The system retrieves a calibration parameter value for the item from a calibration database, and completes a calibration measurement of the item based on the calibration parameter value. In the example, a torque measurement of the calibrated torque wrench can thus be automatically completed. In turn, the system determines a current calibration status of the item based on the calibration measurement, and selectively enables or disables issuance of the inventory item from the system according to the item's status as being in calibration or out of calibration.

The present invention discloses a limit switch assembly for use with a digital torque wrench. The limit switch assembly is configured to prevents the micro-controller from displaying undesired jumps in real-time torque measurements. The limit switch assembly includes a housing, actuator that is movable between a first and second position and a biasing element that biases the actuator toward its first position.

The present invention discloses a loadcell holder for use within a digital torque wrench. The loadcell holder is characterized in that it includes a first surface configured to engage a loadcell, wherein said first surface includes engagement means configured to limit rotational movement of the loadcell in relation to the loadcell holder. The loadcell holder also includes a second surface distal from the first surface, wherein said second surface includes a rounded surface configured to limit axial movement of the load cell holder and any load cell that engaged to the first surface.

The present invention discloses a wire holder configured to manage the wire of a loadcell assembly within a digital torque wrench. The wire disclosed wire holder includes a body having a neck and a first arm and second arm that form a clip. The clip is configured to secure the body to a casing structure within the digital torque wrench. The wire holder is characterized in that it further includes a groove formed between first and second walls that run down neck and one of either the first or second arms. The groove is configured to receive a wire from the loadcell and facilitate the coiling of said wire about the casing structure above the clip as the wire holder translates up and down the casing structure.

A torque wrench provided with illumination structure and indicated graduations includes a tubular body bored with an insert hole and an illumination hole. The tubular body is provided therein with a graduated ring having its outer circumferential wall provided with a graduation marked portion, with an interval kept between the graduation marked portion and the inner tube wall of the tubular body. A lens is disposed at a location corresponding to the insert hole, and a light-emitting element is installed at a location corresponding to the illumination hole. Thus, light emitted by the light-emitting element will first illuminate the graduation marked portion and thereafter the reflected light of the graduation marked portion will pass through the insert hole and pass out the lens, enabling a user to clearly read the graduation marked portion.