Ratchet opener

A ratchet opener comprises a rod body; a ratchet device having a seat; a top surface of the seat having two axial grooves; each groove being installed with a spring and a ratchet block; an adjusting sheet placed above the seat; and a ratchet sheet being installed above the adjusting sheet. Each ratchet block has a teethed inclined surface; the teeth surfaces of the two ratchet blocks are symmetrical to a center of the seal. A center of the adjusting sheet is installed with a second via hole; and the ratchet block is installed with a non-round buckling hole corresponding to the cylinder at the lower end of the rod body. In use, by controlling the adjusting sheet, the objects of unidirectional, bi-directional, and idle rotations are achieved. The operation is easy.

FIELD OF THE INVENTION

The present invention relates to openers, and particularly to a ratchet opener, wherein by controlling the adjusting sheet, the objects of unidirectional, bi-directional, and idle rotations are achieved. The operation is easy and convenient.

BACKGROUND OF THE INVENTION

In the prior art, a standard type ratchet opener has a seat installed on a handle. An approximate C shape stopper protrudes from the seat. A receiving space in a center of the stopper receives a tool rod of a ratchet unit. A left and a right stop of the ratchet unit are received in the left and right slots between the stopper and the cylinder. The cylinder has a left projection and a right projection corresponding to the left and right stops for engaging a left and a right concave portion at a rear middle section of the left and right stop. Thereby, the left and right stops swing along the engaging portions, but not to engage a teethed section of the tool rod. Thereby, the seat can drive the tool rod to rotate.

In another prior art, a seat is installed in a handle. A receiving portion at a center of the seat serves to receive a tool rod of a ratchet unit. Two sides of the receiving portion are extended with a left receiving chamber and a right receiving chamber symmetrically for installing the left and right stops of the ratchet unit. The seat has two protrusions for supporting the left and right stops. Thereby, the left and right stops swing along the engaging portions, but not to engage a teethed section of the tool rod. Thereby, the seat can drive the tool rod to rotate.

In above mentioned two prior arts, the left and right stops are used to transversally control the rotation direction of the tool rod. Thereby, the transversal control has the following problems. The components of the ratchet opener are too complicated to be manufactured easily. As a result, the assembly work is difficult and some techniques in assembly must be learned, which increases the burdens of workers. Moreover, since the assembly work is complicated, more workers are necessary. However, this increases the cost.

SUMMARY OF THE INVENTION

Accordingly, the primary object of the present invention is to provide a ratchet opener which comprises a rod body; a lower end of the rod body being protruded with a non-round cylinder; a handle having a receiving chamber; a ratchet device having a seat; a center of the seat being installed with a first via hole; a top surface of the seat having two axial grooves; each groove being installed with a spring and a ratchet block; an adjusting sheet placed above the seat; and a ratchet sheet being installed above the adjusting sheet. Each ratchet block has a teethed inclined surface; the teeth surfaces of the two ratchet blocks are symmetrical to a center of the seal. The adjusting sheet has two through holes which are arranged corresponding to the two ratchet blocks in the seat. A center of the adjusting sheet has a second via hole; and the ratchet block is installed with a non-round buckling hole corresponding to the cylinder at the lower end of the rod body. When the ratchet device is assembled, the rod body will pass through the buckling hole; first via hole and the second via hole and the seat is buckled to the receiving chamber of the handle.

DETAILED DESCRIPTION OF THE INVENTION

Referring toFIGS. 1 to 3, the ratchet opener of the present invention is illustrated. The ratchet opener of the present invention includes a round rod body10. A lower end of the rod body10is formed as a hexagonal cylinder. A top of the rod body10is formed with a hole11.

A handle20is formed with a receiving chamber21. Each of two ends of the receiving chamber21is formed with respective buckling slot22, respectively.

A ratchet device includes a seat31. A center of the seat31is formed with a first via hole311. A lower end of the ratchet device31has a protrusion portion313for buckling to the buckling slots22. A top of the ratchet device has two axial grooves312. Each groove312is installed with a spring32and a ratchet block33. An adjusting sheet34is placed upon the ratchet blocks33. A ratchet sheet35is placed upon the adjusting sheet34.

The ratchet teeth331of each ratchet block33are formed on an inclined surface. The two ratchet blocks33are oppositely arranged so as to drive the ratchet sheet35to rotate along two different directions. The adjusting sheet34is formed with two through holes341which are arranged corresponding to the ratchet blocks33. A center of the adjusting sheet34is formed with a second via hole342. A periphery of the adjusting sheet34is formed with a projection343. Moreover, the ratchet sheet35is installed with a hexagonal buckling hole351corresponding to the lower end of the rod body10.

A sleeve40has a round hole41at a center thereof. A periphery of the sleeve40is formed with a radial cambered recess42. After assembly, the projection343of the adjusting sheet34will protrude out of the cambered recess42so as to control the rotation direction of the ratchet opener.

In assembly of above mentioned structure, the groove312of the seat31will receive the spring32and the ratchet block33. Then the adjusting sheet34and ratchet sheet35are located above the ratchet block33. Then the rod body10passes through the buckling hole351, the second via hole342and the first via hole311. Then the C ring50serves to fix the rod body10to the ratchet device. After fixing the rod body10, a lower end of the seat31is buckled in the receiving chamber21of the handle20. Finally, the sleeve40encloses an upper end of the seat31and the projection343of the adjusting sheet34protrudes out from the cambered recess42of the sleeve40.

By the above ratchet device, when only one ratchet block33protrudes from the through hole341to be engaged with the ratchet sheet35(referring toFIGS. 4 and 7), since the ratchet block33is an unidirectional teethed block, the ratchet opener can only drive the ratchet sheet35so as to drive the rod body10to rotate unidirectionally. If the other ratchet opener rotates along a reverse direction, the ratchet sheet35cannot be driven so as to rotate idly. When the adjusting sheet34is adjusted, the ratchet block33protrudes out of the through hole341to buckle the ratchet sheet35(referring toFIGS. 5 and 8). Thus, a completely different action is presented. It causes the ratchet opener to drive the ratchet block33to rotate unidirectionally. Similarly, when the two ratchet blocks33are buckled to the ratchet sheet35simultaneously (referring toFIGS. 6 to 9), the ratchet opener will drive the ratchet sheet35to achieve the object of bi-directional rotation.

In use, by controlling the adjusting sheet34, the objects of unidirectional, bi-directional, and idle rotations are achieved. The operation is easy. The assembly work is easy and convenient and the structure is simple. Thereby, the difficulty in manufacturing is reduced.