Cutter and caulking gun

1. A cutter, configured to be mounted to a push rod of a caulking gun, the push rod including a pushing portion for pushing a container containing a caulking material and a rear end portion opposite to the pushing portion, the cutter including:

an assembling portion, configured to be mounted at the rear end portion of the push rod; and

a cutting portion, connected with the assembling portion and including a cutting member.

2. The cutter of claim 1 , further including a hook portion connected with the assembling portion, wherein the hook portion is configured to be arranged to extend laterally toward the push rod.

3. The cutter of claim 1 , wherein the cutting portion further includes a base body, the base body includes a through hole, the cutting member is movably assembled to the base body, the cutting member includes a cutting edge which is movable within the through hole, and the base body includes a hook portion.

4. The cutter of claim 3 , wherein the assembling portion includes a penetrating hole configured to be disposed around the push rod, the base body radially extends from the assembling portion, and the hook portion extends outwardly from the base body.

5. The cutter of claim 1 , wherein the cutting portion further includes a base body, the base body includes a through hole, the cutting member is movably assembled to the base body, the cutting member includes a cutting edge which is movable within the through hole, one of the cutting member and the base body includes a first positioning mechanism, the other of the cutting member and the base body includes a second positioning mechanism, the cutting member is movable between a first position and a second position relative to the base body, and when the cutting member is located in the second position, the first positioning mechanism and the second positioning mechanism are releasably positioned with each other.

6. The cutter of claim 5 , wherein when the cutting member is located in the second position, the cutting edge passes over one half the area of the through hole.

7. The cutter of claim 5 , wherein the cutting member is movable on a moving path, the cutting member has a thicknesswise direction lateral to the moving path, the first positioning mechanism includes a blocking member and an elastic member, the blocking member includes an operation portion and a blocking portion disposed at an end of the operation portion, the blocking member is movable along the thicknesswise direction, the elastic member is abutted between the operation portion and the cutting portion, the second positioning mechanism includes a slot, and the blocking portion is releasably restricted within the slot.

8. The cutter of claim 7 , wherein the cutting member is rotatable relative to the base body by a shaft portion, the base body includes the first positioning mechanism, the cutting member includes a pivoting portion, the second positioning mechanism is disposed on the pivoting portion, the base body includes an insertion portion, the insertion portion includes an insertion hole open in the thicknesswise direction, a hole wall defining the insertion hole and a stop portion radially extending inwardly from the hole wall, the blocking member is disposed through the insertion hole, the elastic member is abutted against the stop portion, the cutting member includes the slot, the slot is open in the thicknesswise direction, and the operation portion is exposed outside the insertion hole in the thicknesswise direction.

9. The cutter of claim 7 , wherein the assembling portion includes a penetrating hole configured to be disposed around the push rod, the base body radially extends from the assembling portion, and the hook portion extends outwardly from the base body; the hook portion includes a concave face relative to the push rod; the cutter further includes a hanging portion and a resilient member, the hook portion and the hanging portion are located at two sides of the assembling portion and radially extend outwardly relative to the penetrating hole; the through hole is open in a direction lateral to a longitudinal direction of the push rod; the resilient member is abutted between the base body and the cutting member; and when the cutting member is located in the second position, the cutting edge passes over one half the area of the through hole.

10. A caulking gun, includes one of the cutter of claim 1 , further including:

a gun body, includes a carrier and a grip portion, the carrier being configured for mounting of a container containing a caulking material; and

a push rod, movably mounted to the gun body, the push rod including a pushing portion being movable to within the carrier for pushing the container and a rear end portion opposite to the pushing portion, the rear end portion and the carrier being located at two sides of the grip portion;

wherein the cutter is disposed at the rear end portion of the push rod.