TWM587580U - Screwdriver capable of stabilizing screw and operational screw thereof - Google Patents

Abstract

A screwdriver includes a handle and a subunit. The handle includes an inner hole, an embedded hole, and a stopper. The embedded hole is non-circular. The screwdriver unit includes a screw rod, an elastic member, and a rotating ring fixed on the screw rod. The screw rod has a connection. An end portion, an operation portion and a limiting portion, the connecting end portion can be switched between a connecting position nested in the recessed hole and a free position moved out of the recessed hole, and the limiting portion is located at the stop Between the member and the insertion hole, the elastic force of the elastic member tends to move the connecting end portion toward a free position, and the rotating ring is located outside the handle. Utilizing the function of the connection end portion to switch between the connection position and the free position, the driver can be rotated through the handle or the rotation ring according to different torque requirements.

Description

screwdriver

The present invention relates to a hand tool, in particular to a screwdriver.

The existing screwdriver includes a handle and a screwdriver rod fixed to the handle. The screwdriver rod has an operation portion provided at the end and for operating a screw.

Although such screwdrivers are generally visible, during the operation of the screw, the operator must repeatedly rotate the handle, that is, regardless of whether the operating torque is large or small, the operator has always turned the handle, so As a result, the operation is more laborious and troublesome, and it also affects the operation speed.

Therefore, the object of the present invention is to provide a screwdriver that can change the operation state in response to the demand of the operation torque.

Therefore, the new type of screwdriver includes a handle and a sub-unit. The handle includes an inner hole provided along an axis and opening unidirectionally, an embedded hole provided on one side of the inner hole along the axis, and an opening opposite to the embedded hole along the axis and corresponding to the opening of the inner hole. The stopper at the end has a non-circular cross-sectional shape perpendicular to the axis. The screwdriver unit includes a screw rod, a set of elastic members disposed between the screw rod and the handle, and a screwdriver fixed on the screwdriver. A rotating ring of the rod, the driver rod has a connecting end portion slidably inserted in the inner hole along the axis, an operating portion opposite to the connecting end portion, and a connecting end portion and the operation Between the connecting parts and approaching the limiting part of the connecting end, the connecting end can be switched between a non-rotatably nested position in the recess and a free position moved out of the recess, The limiting portion is located between the stopper and the insertion hole, the elastic force of the elastic member tends to move the connecting end portion to a free position, and the rotating ring is located between the connecting end portion and the operation portion, and is located at The outside of the handle.

The effect of the novel model is that when the connecting end is nested in the connecting position in the inserting hole, the handle can be linked to rotate the driver rod, manually push the rotating ring, and use the elastic force of the elastic member to make the connecting end When the part is removed from the recessed hole and is located in the free position, the driver ring can be linked to rotate by operating the rotating ring, the operation mode can be changed according to the demand of the operation torque, and the operation purpose of saving labor and time can be achieved.

Referring to FIG. 1, an embodiment of the novel screwdriver includes a handle 10, a sub-unit 20, and a magnet unit 30.

The handle 10 includes a main body 11, a fixing member 12 fixed inside the main body 11, and a stopper 13 fixed on the main body 11. The body 11 has an inner hole 111 that is arranged along an axis L and is open in one direction, and a hexagonal hole 112 that is adjacent to the closed end of the inner hole 111 and has a hexagonal cross section perpendicular to the axis L. The fixing member 12 has a hollow ring shape, and has an insert hole 121 disposed along the axis L on one side of the inner hole 111, and an outer peripheral surface 122 having a hexagonal cross section opposite to the insert hole 121 and perpendicular to the axis L. The cross-sectional shape of the insertion hole 121 perpendicular to the axis L is non-circular (hexagonal). The fixing member 12 is fixed in the hexagonal hole 112. The stopper 13 is opposite to the insertion hole 121 along the axis L and corresponds to the open end of the inner hole 111, and has a through-hole 131 disposed along the axis L.

The screwdriver unit 20 includes a screwdriver rod 21, a set of elastic members 22 disposed between the screwdriver rod 21 and the handle 10, a buckle ring 23 fastened to the screwdriver rod 21, and a screwdriver rod fixed to the screwdriver rod 21. 21 的 转 环 24。 21 of the rotating ring 24. The driver lever 21 has a connecting end portion 211 slidably inserted in the inner hole 111 along the axis L, an operation portion 212 opposite to the connecting end portion 211, and a connecting end portion 211 and the connecting end portion 211. A limiting portion 213 between the operating portions 212 and approaching the connecting end portion 211, and a ring groove 214 provided along the axis L inside the connecting end portion 211. The connecting end portion 211 is perpendicular to the axis L. The cross-sectional shape is the same as the cross-sectional shape of the insert hole 121 (hexagonal shape). The buckle 23 is buckled in the ring groove 214, the limiting portion 213 is a washer and is sleeved on the driver rod 21 and interposed between the buckle 23 and the elastic member 22. The elastic member 22 is a compression spring and is sleeved outside the connecting end portion 211. Two opposite ends of the elastic member 22 along the axis L abut against the limiting portion 213 and the fixing member 12, respectively. The rotating ring 24 has a receiving hole 241 that is open in one direction toward the handle 10. The connection end portion 211 can be switched between a connection position which is non-rotatably nested in the insertion hole 121 and a free position moved out of the insertion hole 121.

In this embodiment, the magnet unit 30 has a first magnet 31 fixed to the receiving hole 241 of the rotating ring 24, and a second magnet 32 fixed to the handle 10. The second magnet 32 is adjacent to the insertion hole 121. The magnetic attraction force of the magnet unit 30 as a whole is greater than the elastic force of the elastic member 22.

In order to further understand the function of the components of the new model, the use of technical means, and the expected effects, it will be explained as follows. I believe that we can have a deeper and specific understanding of the new model.

As shown in FIG. 2, when the overall assembly of the new type of screwdriver is completed, and the force is not pressed on the handle 10, the limit force 213 is pushed by the elastic force of the elastic member 22, that is, the driver 21 The connecting end portion 211 is in a free position removed from the insertion hole 121.

At this time, if the operation portion 212 is nested in a screw (not shown) and the handle 10 is rotated, since the handle 10 and the driver lever 21 have no engagement structure, the handle 10 will only idle. .

As shown in FIG. 3 again, when the operator presses the handle 10 with force, and the connection end portion 211 is nested in the connection position in the insertion hole 121, at this time, the first magnet 31 is attracted to the stopper. 13, the connecting end portion 211 is attracted to the second magnet 32, the limiting portion 213 pushes against the elastic member 22 and compresses the elastic member 22 to contain a releasable elastic force, and utilizes the entire magnetism of the magnet unit 30 The suction force is greater than the elastic force of the elastic member 22. The rotating ring 24 is positioned on the side of the handle 10. There is an embedded structure between the handle 10 and the driver rod 21. The operator can rotate the handle 10 to link the driver rod 21 Rotate to achieve the purpose of operating the screw.

When the operator pushes the rotating ring 24 by hand and resists the magnetic attraction of the first magnet 31 and the second magnet 32, and moves the rotating ring 24 away from the handle 10, the elastic force of the elastic member 22 is used to assist When the limiting portion 213 (the driver rod 21) is pushed, the connecting end portion 211 is moved out of the insertion hole 121 and returned to the free position shown in FIG. 2. And when the connecting end portion 211 is in the free position (see FIG. 2), since there is no engaging structure between the handle 10 and the driver rod 21, the operator holds the handle 10 with one hand, and the other can operate the handle The rotation ring 24 drives the screw rod 21 to rotate, and the purpose of quickly operating the screw can be achieved.

Therefore, the present invention uses the connection end portion 211 to switch between a connection position which is non-rotatably nested in the insertion hole 121 and a free position moved out of the insertion hole 121. When operating the handle 10, the driver rod 21 can be rotated with a large torque, and when the connecting end portion 211 is in the free position, the driver ring 21 can be operated to rotate rapidly with the operation of the rotating ring 24 (small torque requirement), Therefore, the operation mode can be changed according to the demand of operation torque, and the operation purpose of saving labor and time can be achieved.

It is worth mentioning that the magnet unit 30 may be provided with only the first magnet 31 without the second magnet 32 (not shown), or may be provided with the second magnet 32 without the first magnet. 31 (not shown), the same purpose and effect can also be achieved.

In summary, the new screwdriver has a simple overall structure, easy manufacturing and assembly, and can change the operation mode according to the torque demand, which can indeed achieve the purpose of new cost.

However, the above are only examples of the new model. When the scope of implementation of the new model cannot be limited by this, any simple equivalent changes and modifications made in accordance with the scope of the patent application of the new model and the content of the patent specification are still Within the scope of this new patent.

10‧‧‧Handle

11‧‧‧ Ontology

111‧‧‧inner hole

112‧‧‧Hex hole

12‧‧‧Fixed parts

121‧‧‧ Recessed

122‧‧‧outer surface

13‧‧‧stop

131‧‧‧ perforation

L‧‧‧ axis

20‧‧‧ screwdriver unit

21‧‧‧driver

211‧‧‧ connecting end

212‧‧‧Operation Department

213‧‧‧Limiting Department

214‧‧‧Ring Groove

22‧‧‧Elastic piece

23‧‧‧ buckle

24‧‧‧rotating ring

241‧‧‧Through Hole

30‧‧‧magnet unit

31‧‧‧First magnet

32‧‧‧Second magnet

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, among which:
1 is an exploded perspective view of an embodiment of the novel screwdriver;
FIG. 2 is a schematic cross-sectional view of one of the embodiments, illustrating that a connecting end portion of a sub-rod is moved from a recessed hole and is located in a free position; and FIG. 3 is another schematic side view of the embodiment, illustrating the driver The connection end portion of the connection hole is embedded in the insertion hole and is located at a connection position.

Claims (7)

A screwdriver containing:
A handle includes an inner hole disposed along an axis and opening unidirectionally, an embedded hole disposed along one side of the axis on the side of the internal hole, and an opposite side of the embedded hole along the axis and corresponding to the internal hole. An open end stop, the cross-sectional shape of the embedded hole perpendicular to the axis is non-circular; and a sub-unit including a sub-rod, a set of elastic members provided between the driver rod and the handle, and a fixed A rotation ring of the driver rod, the driver rod has a connecting end portion slidably provided in the inner hole along the axis, an operation portion opposite to the connecting end portion, and a connecting end portion And a limiting portion approaching the connecting end portion and the operating portion, the connecting end portion can be a non-rotatable nesting position in the joint position and a free position removed from the insert hole Between the stopper and the inserting hole, the elastic force of the elastic member tends to move the connecting end to a free position, and the rotating ring is located between the connecting end and the operating portion, And located outside the handle. The screwdriver according to claim 1, further comprising at least one magnet unit fixed to one of the screwdriver unit and the handle, and the magnetic force of the magnet unit provides the connection end portion to be maintained in the connection position. The screwdriver according to claim 2, wherein the magnet unit has a first magnet fixed to the rotating ring, and when the connecting end portion is located at the connecting position, the first magnet is attracted to the stopper. The screwdriver according to claim 2 or claim 3, wherein the magnet unit has a second magnet fixed to the handle, and when the connection end portion is located at the connection position, the second magnet is attracted to the connection end portion. The screwdriver according to claim 1, wherein the handle further includes a main body and a fixing member fixed inside the main body, and the inserting hole is provided in the fixing member. The screwdriver according to claim 5, wherein the screwdriver rod of the screwdriver unit further has a ring groove provided along the axis line inside the connecting end, and the screwdriver unit further includes a buckle ring which is buckled in the ring groove. The limiting portion is a washer and is sleeved on the driver rod and is interposed between the buckle and the elastic member. The elastic member is a compression spring and is sleeved on the outside of the connecting end. The elastic member is along the axis. The opposite ends abut against the limiting portion and the fixing member, respectively. The screwdriver according to claim 2, wherein a magnetic attraction force of the magnet unit is greater than an elastic force of the elastic member.