Forearm crutch

1. A forearm crutch comprising:

a cane assembly including

a main cane having an upper end; and

a hand grip mounted on the upper end of the main cane;

an adjustable base slidably mounted on the main cane and having

a main mounting channel mounted around the main cane;

an additional mounting channel obliquely extending relative to the main mounting channel, and being independent from the main mounting channel; and

a first locking hole formed through a sidewall of the adjustable base and communicating with the main mounting channel;

a forearm support assembly including

a forearm support cane having

an upper end; and

a lower end mounted in the additional mounting channel of the adjustable base and securely attached to the adjustable base; and

a cuff mounted on the upper end of the forearm support cane; and

a first locking assembly mounted in the main cane, selectively locking the adjustable base in place on the main cane, and including a first locking button, and the first locking button resiliently mounted through a sidewall of the main cane and has an outer end;

wherein when the outer end of the first locking button engages in the first locking hole of the adjustable base, the adjustable base is locked in place on the main cane; and

when the outer end of the first locking button is pressed to disengage from the first locking hole, the adjustable base is slidable on the main cane.

2. The forearm crutch as claimed in claim 1 , wherein the main cane is telescopic.

3. The forearm crutch as claimed in claim 2 , wherein the forearm support cane is telescopic.

4. The forearm crutch as claimed in claim 1 , wherein the forearm support cane includes

a first forearm support tube;

a second forearm support tube telescopically connected to the first forearm support tube and securely mounted in the additional mounting channel of the adjustable base; and

a second locking mechanism selectively locking the first forearm support tube in position on the second forearm support tube.

5. The forearm crutch as claimed in claim 4 , wherein

the second forearm support tube is mounted around the first forearm support tube, and has

two opposite ends; and

multiple first positioning holes arranged linearly between the opposite ends of the second forearm support tube;

the second locking mechanism is mounted in the first forearm support tube and includes a second locking button, and the second locking button is resiliently mounted through a sidewall of the first forearm support tube and has an outer end;

wherein when the outer end of the second locking button engages in one of the first positioning holes of the second forearm support tube, the first forearm support tube is locked in place on the second forearm support tube; and

when the outer end of the second locking button is pressed to disengage from the first positioning hole, the first forearm support tube is slidable on the second forearm support tube.

6. The forearm crutch as claimed in claim 1 , wherein the main cane includes

a first mounting tube mounted through the main mounting channel of the adjustable base;

a second mounting tube telescopically connected to the first mounting tube; and

a third locking mechanism selectively locking the first mounting tube in position on the second mounting tube.

7. The forearm crutch as claimed in claim 6 , wherein

the first mounting tube is mounted around the second mounting tube, and has a second locking hole formed through a sidewall of the first mounting tube; and

the third locking mechanism is mounted in the second mounting tube and includes a third locking button, and the third locking button is resiliently mounted through a sidewall of the second mounting tube and has an outer end;

wherein when the outer end of the third locking button engages in the second locking hole of the first mounting tube, the second mounting tube is locked in place on the first mounting tube; and

when the outer end of the third locking button is pressed to disengage from the second locking hole, the second mounting tube is slidable on the first mounting tube.

8. The forearm crutch as claimed in claim 6 , wherein the main cane further includes

a third mounting tube telescopically connected to the second mounting tube; and

a fourth locking mechanism selectively locking the third mounting tube in position on the second mounting tube.

9. The forearm crutch as claimed in claim 8 , wherein

the second mounting tube is mounted around the third mounting tube, and has

two opposite ends; and

multiple second positioning holes arranged linearly between the opposite ends of the second mounting tube;

the fourth locking mechanism is mounted in the third mounting tube and includes a fourth locking button, and the fourth locking button is resiliently mounted through a sidewall of the third mounting tube and has an outer end;

wherein when the outer end of the fourth locking button engages in one of the second positioning holes of the second mounting tube, the third mounting tube is locked in place on the second mounting tube; and

when the outer end of the fourth locking button is pressed to disengage from the second positioning hole, the third mounting tube is slidable on the second mounting tube.

10. The forearm crutch as claimed in claim 9 , wherein

the third mounting tube has a through hole formed through the sidewall of the third mounting tube;

the fourth locking button is resiliently mounted through the through hole of the third mounting tube; and

the outer end of the fourth locking button selectively engages in one of the second positioning holes of the second mounting tube.