Vehicle mountable arm for valve operating machine
A valve operating device includes a mounting for attachment to a vehicle and an elongate arm, the free end of which is only moveable across the underlying ground. The joints of the arm pivot around vertical axes and the arm is locked into a desired orientation by a brake at each joint. A valve turning machine is at the free end of the arm. The brakes are engaged and released by a control on the valve turning machine.
1. A valve operating device comprising:
a valve operating machine including a motor and a sleeve drivable by the motor, wherein the valve operating machine is non-moveable along a longitudinal axis of the sleeve;
a mounting;
a linear first arm having a first end, a second end and being non-pivotal between the first end and the second end, wherein the first end of the first arm is rotatably directly attached to the mounting;
a linear second arm having a first end, a second end and being non-pivotal between the first end and the second end, wherein the first end of the second arm is rotatably directly attached to the second end of the first arm and the valve operating machine is attached directly to the second end of the second arm;
a first lock that prevents the first arm from rotating about the mounting;
a second lock that prevents the second arm from rotating about the first arm; and
a control for at least one of the first lock and the second lock.
2. The valve operating device of claim 1 , wherein the control is remote from the first lock and the second lock.
3. The valve operating device of claim 1 , wherein the first arm is telescopically extendible.
4. The valve operating device of claim 1 , wherein the second arm is telescopically extendible.
5. The valve operating device of claim 1 , wherein the first lock comprises a hydraulically-operated brake.
6. The valve operating device of claim 1 , wherein the second lock comprises a hydraulically-operated brake.
7. The valve operating device of claim 1 , wherein the first arm is rotatable only about one axis and maintains a horizontal orientation throughout rotation thereof.
8. The valve operating device of claim 1 , wherein the control is for both the first lock and the second lock.
9. The valve operating device of claim 1 , wherein the valve operating machine includes a handle.
10. The valve operating device of claim 9 , wherein the handle is positioned at an end of the valve operating machine distal from the second arm.
11. The valve operating device of claim 1 , wherein the first lock comprises a hydraulically-operated brake and the second lock comprises a hydraulically-operated brake.
12. The valve operating device of claim 1 , further comprising an elongate key configured to couple to the sleeve.
13. The valve operating device of claim 12 , wherein the elongate key is configured to insert into the sleeve.
14. The valve operating device of claim 13 , wherein the sleeve and the elongate key are drivable by the motor.
15. The valve operating device of claim 1 , further comprising an elongate key positioned in the sleeve.
16. The valve operating device of claim 15 , wherein the sleeve and the elongate key are drivable by the motor.