Packing tool capable of displaying tension

Abstract

A packing tool capable of displaying tension includes a body and a control device. The body includes a strap winding device. A handle and a ratchet gear are fitted on the strap winding device. The ratchet gear abuts against a first abutting member. The control device is connected to the handle and includes a processing unit. The processing unit is electrically connected to a detection unit and a display unit. The detection unit is used to detect the amount of deformation of the first abutting member and then calculate and output a tension value to the display unit, so that the user can pay attention to the tension value applied to a packing strap by the packing tool at any time, so as to achieve the purpose of fast packing.

What is claimed is: 
     
         1 . A packing tool capable of displaying tension, comprising:
 a body, including a strap winding device;   a detection unit, connected to the strap winding unit, the detection unit being configured to detect a tension value of the strap winding device;   a display unit, electrically connected to the detection unit for displaying the tension value.   
     
     
         2 . The packing tool as claimed in  claim 1 , further comprising a control device, the control device including a processing unit, the processing unit being electrically connected to the detection unit and the display unit, the processing unit including a calculation module, the calculation module being configured to receive a signal from the detection unit and output the tension value. 
     
     
         3 . The packing tool as claimed in  claim 2 , wherein the processing unit includes a following module, a conversion module and a peak module, the following module is able to output the present tension value, the conversion module is configured to convert and output a unit of the tension value, the peak module is configured to output a peak of the tension value, the packing tool further comprise an input unit, the input unit is electrically connected to the processing unit, the input unit includes a first button, a second button and a third button, the first button serves as a return-to-zero button and an on/off button, the second button serves as a switching button for the following module and the peak module, and the third button serves as a unit switching button. 
     
     
         4 . The packing tool as claimed in  claim 2 , wherein the processing unit includes a warning module, the warning module is configured to set a first warning value and a second warning value, the packing tool further comprises a warning unit, the warning unit is electrically connected to the processing unit, the warning unit has a first light-emitting member and a second light-emitting member, when the tension value reaches the first warning value, the first light-emitting member lights up, when the tension value reaches the second warning value, the second light-emitting member lights up. 
     
     
         5 . The packing tool as claimed in  claim 4 , further comprising an input unit, the input unit being electrically connected to the processing unit, the input unit including a first button, a second button and a third button, the third button serving as a warning value setting member of the warning module, the second button and the third button serving as selection buttons and value adjustment buttons of the first warning value or the second warning value, the first button serving as a setting button. 
     
     
         6 . The packing tool as claimed in  claim 1 , further comprising a wireless communication unit, the wireless communication unit being electrically connected to the processing unit, the wireless communication unit having a third light-emitting member, wherein when the wireless communication unit is communicatively connected, the third light-emitting member lights up. 
     
     
         7 . The packing tool as claimed in  claim 1 , further comprising a power supply unit, the power supply unit being electrically connected to the processing unit, the power supply unit including a power storage member, a charging member and a fourth light-emitting member, the charging member being configured for the power storage member to be charged, wherein when the power supply unit is in a charging mode, the fourth light-emitting member lights up. 
     
     
         8 . The packing tool as claimed in  claim 1 , wherein the strap winding device includes a winding mandrel, the winding mandrel is sleeved with a handle and a ratchet gear, the ratchet gear abuts against a first abutting member, the detection unit is attached to the first abutting member, and the detection unit is a strain gauge. 
     
     
         9 . The packing tool as claimed in  claim 2 , wherein the control device has an outer casing, the outer casing has a through hole extending in an axial direction thereof, the handle is inserted through and fixed to the through hole, the display unit has a panel, and the panel is disposed on an outer side of the outer casing and located at a relative position to an underside of the handle.