Overvoltage fastening tool

Abstract

An overvoltage fastening tool is disclosed having a quadrangular and parallelepiped-shaped container (A), a sensor (B), and a manual operating means (C).

We claim: 
     
         1 . An overvoltage fastening tool comprising:
 a quadrangular and parallelepiped-shaped container (A);   a sensor (B); and   a manual operating means (C);
 the container (A) having an access orifice at its lower base permitting the entry and centering of the production tube and bottom equipment; 
 an opening ( 1 ) occluded with an extractable blind cover at one of its sides; 
 an access orifice at its upper base permitting the entry to a production tube as well as to an equipment to be installed and to be removed and a removable blind cover permitting access to its inside from the back; 
 the container (A) further having a tube ( 3 ) with an upper section where a clamp ( 4 ) is located and a lower section providing a cutoff component ( 5 ) that faces a stop ( 6 ) against which contact is made when the sensor (B) signal is tripped or when acting against the manual operating means (C); 
 the clamp ( 4 ) being located in the internal surface of the tube ( 3 ) for which a free space can be arranged to secure or release a cable ( 7 ) linking the equipment with a supply source; 
 the tube ( 3 ) having a fixed external section ( 8 ) and an internal section ( 9 ) connected to an arm ( 10 ) where at its lower end, it forms a point of articulation with an intermediate part ( 11 ) connected to a cam ( 12 ) operated by a stem ( 13 ) of a displaceable piston ( 14 ) within a cylinder ( 15 ) as soon as a fluid entering pushes an end of the cam ( 12 ) downward and elevates the other that pushes the arm ( 10 ) in the direction of the external section ( 8 ) of the line ( 3 ) that closes the clamp ( 4 ) against the cable ( 7 ); 
 the rise of the cam ( 12 ) end pushings the cutoff component ( 5 ) forward until the edge makes contact with the stop ( 6 ) securing the cable ( 7 ); 
 as a result of the cable ( 7 ) displacement, the sensor (B) activates an electric connector ( 18 ) that sends the fluid from the deposit and through a high pressure hose ( 17 ) and a valve ( 16 ) to the cylinder ( 15 ) pushing the piston ( 14 ) downward; 
 the manual operating means (C) including a button ( 19 ) that activates the electric connector ( 18 ) that pushes the fluid from the deposit to the cylinder ( 15 ) and once the emergency has ended, the electric connector ( 18 ) closes or deactivates and ceases the fluid flow in the direction of the cylinder ( 15 ) so that elastic means ( 20 ) arranged between the arm ( 10 ) and the internal section ( 9 ) expand and push the arm ( 10 ) towards the at-rest position that displaces the internal section ( 9 ) and opens the clamp ( 4 ), releasing the cable ( 7 ) and pulling the cutoff component ( 5 ) and the cam ( 12 ) that drives the stem ( 13 ) upward pushing the flow through the valve ( 16 ) and the high pressure hose ( 17 ) towards the deposit. 
   
     
     
         2 . The tool of  claim 1  wherein the fluid flowing from the container to the cylinder ( 15 ) and from the latter to the former, can be hydraulic, electric or gaseous in nature. 
     
     
         3 . The tool of  claim 1  wherein the fluid enters the cylinder ( 15 ) from a valve ( 16 ) connected to a high pressure hose ( 17 ) connected to a deposit and returns to the latter pushed by the piston ( 14 ) return. 
     
     
         4 . The tool of  claim 1  wherein each of the sides of the opening ( 1 ) is provided with a fastening handle ( 2 ) to the BOP valve. 
     
     
         5 . The tool of  claim 1  wherein the container (A) is situated at the mouth of an oil well and complies adequate with the need of the installation location. 
     
     
         6 . The tool of  claim 1  wherein the container (A) is made of any suitable material, preferably corrosion resistant metal. 
     
     
         7 . The tool of  claim 1  wherein the side where the opening ( 1 ) is located, is selected according to the need for the installation location. 
     
     
         8 . The tool of  claim 1  wherein the blind cover is removed to enable the flow of oil as for instance in the event that the well is moved.