Hot air gun

Abstract

A hot air gun includes a gun body, the gun body including a handle and a hand guard disposed at a front side of the handle, the gun body being provided with a hot air assembly and a temperature sensing arrangement, the hot air assembly including a heat generating assembly for generating hot air and a hot air tube for blowing the hot air towards a work area, the temperature sensing arrangement being configured to sense temperature of the work area, where the temperature sensing arrangement is rotatably connected to the hand guard, the hand guard is provided with a tuning element for tuning a sensing angle of the temperature sensing arrangement, and the tuning element extends towards the handle relative to the hand guard. The disclosure is mainly used to tune the temperature sensing arrangement via a single hand.

What is claimed is: 
     
         1 . A hot air gun comprising:
 a gun body comprising a handle and a hand guard disposed at a front side of the handle, the gun body being provided with a hot air assembly and a temperature sensing arrangement, the hot air assembly comprising a heat generating assembly for generating hot air and a hot air tube for blowing the hot air towards a work area, the temperature sensing arrangement being configured to sense temperature of the work area, wherein the temperature sensing arrangement is rotatably connected to the hand guard, the hand guard is provided with a tuning element for tuning a sensing angle of the temperature sensing arrangement, and the tuning element extends towards the handle relative to the hand guard.   
     
     
         2 . The hot air gun of  claim 1 , wherein the tuning element is movably connected to the hand guard, the temperature sensing arrangement abuts against an end portion of the tuning element, and the temperature sensing arrangement is connected to an elastic member which enables the temperature sensing arrangement to maintain a tendency of abutting against the tuning element. 
     
     
         3 . The hot air gun of  claim 2 , wherein the end portion, which abuts against the temperature sensing arrangement, of the tuning element has a smooth curved surface. 
     
     
         4 . The hot air gun of  claim 2 , wherein the temperature sensing arrangement is provided with a limiting groove within which the end portion of the tuning element moves. 
     
     
         5 . The hot air gun of  claim 2 , wherein the temperature sensing arrangement is provided with a locating protrusion, the hand guard is provided with a locating groove oriented to face the locating protrusion, and two ends of the elastic member are located on the locating protrusion and in the locating groove, respectively. 
     
     
         6 . The hot air gun of  claim 2 , wherein the temperature sensing arrangement is connected to the hand guard via a rotary shaft, and the elastic member refers to a torsional spring sleeved over the rotary shaft. 
     
     
         7 . The hot air gun according to  claim 2 , wherein the tuning element is rotatably connected to the hand guard, a driving gear is provided on the tuning element, a driven gear is provided on the temperature sensing arrangement, the driven gear is engaged with the driving gear, and the tuning element rotates to bring the temperature sensing arrangement to rotate: or, the tuning element is in threaded-fit with the hand guard, and the tuning element moves axially to bring the temperature sensing arrangement to rotate: or, the tuning element is securely connected to the temperature sensing arrangement via a damping shaft and rotates synchronously relative to the hand guard, and the damping shaft is rotatably connected to the hand guard. 
     
     
         8 . The hot air gun according to  claim 1 , wherein the hand guard is provided with an accommodation cavity for accommodating the temperature sensing arrangement, and the tuning element projects into the accommodation cavity to act on the temperature sensing arrangement: or the tuning element is provided on a rear side upper half portion of the hand guard and tilts upward. 
     
     
         9 . The hot air gun according to  claim 1 , wherein the hot air tube has a central axis, a rotating plane of the temperature sensing arrangement and the central axis of the hot air tube being located on a same plane. 
     
     
         10 . The hot air gun according to  claim 1 , wherein the temperature sensing arrangement is attached with a sighting probe for sighting a work area, the sighting probe being arranged parallel to the temperature sensing arrangement.