TWM447298U - Multi-speed screwdriver - Google Patents

Description

Multiple speed screwdriver

This creation involves a hand tool, especially a multi-speed screwdriver.

A typical ratchet driver is shown in FIG. 7. The ratchet driver 60 includes a tool grip 61, and a steering positioning member 62 is disposed at a front end of the tool grip 61. The steering position member 62 and the tool grip 61 are disposed between the tool holder 61. A ratchet structure is disposed, and a tool holder 63 is coupled to the center of the steering positioning member 62. The ratchet structure of the steering positioning member 62 limits and fixes the tool holder 63 to rotate in a single direction. With the replacement of various handles of different shapes or sizes, it can be used to lock or loosen various types of bolts; When the length of some bolts is long or the position is not so good, it often takes more effort and time to lock or remove the bolts. Therefore, electric screwdrivers have appeared on the market. Powering the tool with a handle to turn the bolts can save a lot of effort; However, although the electric screwdriver is labor-saving, it is also driven by electric power, and it is not easy to control on the grip of the force. As a result, some bolts are easy to damage the groove of the bolt head due to the power, and the bolt cannot be taken out, which is not worth the loss, so there is still Improve the need for strengthening.

In order to solve the problem that the general ratchet screwdriver is time-consuming and laborious and the electric screwdriver is easy to damage the bolt head, and the bolt cannot be taken out, the main purpose of the present invention is to provide a semi-automatic rotation and improve the rotation. Multiple speed screwdrivers for dynamic efficiency.

The technical means used in the present invention is to provide a multi-speed rotary screwdriver, comprising: a tool grip attached to the top end to form an open inlet; a rotating set, the corresponding assembly is coupled to the tool grip Loading the inlet, the rotating group includes a mandrel rod correspondingly inserted into the loading port of the tool grip, the mandrel rod is provided with a positioning portion at the top, and the periphery of the positioning portion is The sleeve is provided with a rotatable steering positioning member, and the mandrel rod is equidistantly provided with three gear slots on the outer peripheral surface, and a central shaft hole is axially disposed at a central axis position of the spindle shaft; a bearing The sleeve is fixed to the mandrel rod and located under the steering positioning member; a gear set includes three transmission wheels and an outer frame wheel that is wrapped and engaged on the outer side of the three transmission wheels, and the three The transmission wheel trains respectively correspond to the three gear grooves of the mandrel bar; a chassis is sleeved and fixed on the mandrel bar and located under the gear set, the chassis is provided with three fixing members, and is respectively pivoted Fixing the three transmission wheels to the three teeth a knob, which is sleeved on the bearing and is fixed to the outer circumferential surface of the outer frame wheel, and is capable of rotating the gear set; a clamping rod is disposed at the center of the spindle shaft The shaft hole, the top end of the clamping rod forms a clamping portion, and the clamping rod can be made with the three transmission wheels of the gear set and the positioning portion of the spindle shaft.

This creation utilizes the multi-speed screwdriver provided to achieve the same effect. Enhancements include:

1. The creation department is provided with a rotating group which is a gear transmission mechanism inside. When the bolt or bolt position with a long rotation length is not easy to apply force, the knob of the rotating group can be directly rotated and calculated through the rotating group. The speed ratio is used to increase the speed of the clamping rod, so that the bolt can be quickly withdrawn or screwed into the position, and the bolt can be tightened or loosened by hand, which not only saves labor but also improves work efficiency.

2. The creation system can perform a similar electric screwdriver-like rotation in a semi-automatic manner, and can adjust the rotation force by the actual tactile feel of the bolt when rotating, without causing damage to the bolt head due to excessive force.

In order to be able to understand in detail the technical features and practical functions of the present invention, and can be implemented in accordance with the contents of the specification, and further illustrated in the preferred embodiment as shown in the following figure, the following is a multi-speed rotary screwdriver. Referring to the preferred embodiment of FIGS. 1 through 4, a tool grip 10, a rotating set 20 and a clamping rod 30 are included.

As shown in FIGS. 1 and 2, the tool grip 10 is a grip having a circular arc shape and suitable for holding, and an open inlet 11 is formed at the top end of the tool grip 10.

As shown in FIG. 2 and FIG. 3, the rotating group 20 is provided with a loading port 11 coupled to the tool grip 10. The rotating group 20 includes a spindle shaft 21, a bearing 22, a gear set 23, a chassis 24 and a knob 25, the spindle shaft 21 is correspondingly inserted into the loading port 11 of the tool grip 10, the spindle shaft The locating portion 210 is formed on the top of the locating portion 210, and two positioning slots 2101 are formed on one side of the locating portion 210. The two positioning slots 2101 are respectively provided with an elastically actuatable ratchet member 2102. The end of the two ratchet members 2102 is provided with a ratchet for positioning, and a positioning bead 2103 is defined on the side of the positioning portion 210 different from the two positioning slots 2101. A positioning bead 2104 is disposed on the outer portion of the positioning portion 210. The steering positioning member 211 is configured to drive the two ratchet members 2102 and the positioning bead. The operation of the positioning member 210 and the steering locator 211 are not the focus of the present invention, and are not described in detail. The lower portion of the steering positioning member 211 is formed below. The bearing portion 212 is configured to connect the bearing, and has a rod portion 213 extending downwardly below the bearing portion 212. Three gear slots 214 are equally spaced apart from the outer peripheral surface of the rod portion 213 adjacent to the bearing portion 212. The rod portion 213 corresponds to the three gears The lower portion of the 214 is formed with a recessed limiting groove 215 in the axial direction, and a fixing hole 216 communicating with the limiting groove 215 is formed in the downwardly facing side wall of the three gear groove 214, and the central axis of the spindle rod 21 is A central shaft hole 217 is disposed in the axial direction for mounting the clamping rod; the bearing 22 is sleeved on the bearing portion 212, and the gear set 23 is sleeved on the spindle shaft 21 and located at Below the bearing 22, the gear set 23 includes a three transmission wheel 231 and an outer frame wheel 232. The three transmission wheels 231 are respectively disposed in the three gear grooves 214 of the spindle rod 21, and the outer frame wheel 232 is respectively disposed. Forming an inner tooth surface 2321 corresponding to one of the three transmission wheels 231 on the inner circumferential surface, and a plurality of locking grooves 2322 are disposed on the outer circumferential surface, the outer frame The wheel 232 is correspondingly engaged with the three gear wheels 231 by the inner tooth surface 2321, so that the outer frame wheel 232 can rotate the three transmission wheels 231 at the same time; the chassis 24 is correspondingly sleeved on the spindle shaft 21, And abutting against the outer frame wheel 232, the bottom plate 24 is provided with three through holes 241 corresponding to the three fixing holes 216 of the mandrel rod 21, and the three fixing members 242 respectively pass the three through holes. The 241 and the three fixing holes 216 are pivotally coupled to the three transmission wheels 231 and fixed to the spindle shaft 21, so that the three transmission wheels 231 can be rotated by the three fixing members 242; the knob 25 is The sleeve 22 is coupled to the bearing 22 and the gear set 23, and the inner surface is engaged with each of the locking recesses 2322 of the outer frame wheel 232, and the outer peripheral surface of the knob 25 is formed with a circumferential groove. The knob 25 is easy to rotate.

As shown in FIG. 2 and FIG. 3, the clamping rod 30 is correspondingly inserted into the central shaft hole 217 of the mandrel rod 21, and is fastened to the mandrel rod 21 by a C-shaped buckle 301. The top end of the rod 30 forms an annular clamping portion 31 for holding the handle tool, and a first rod portion 32 having a two-stage shape is formed below the clamping portion 31 and located at the first rod portion 32. a second shank portion 33 is provided with a tooth portion 321 , 331 respectively on the outer peripheral portion of the first rod portion 32 and the second rod portion 33 , and the clamping rod 30 utilizes the tooth portion of the second rod portion 33 . The 331 is engaged with the inner circumference of the three transmission wheel 231, and the tooth portion 321 of the first rod portion 32 is engaged with the two ratchet members 2102 of the spindle rod 21, and the steering positioning member 211 is adjusted to limit the clamping rod. When rotating 30, it is fixed in a single rotation direction counterclockwise or clockwise. As shown in FIG. 3 and FIG. 4, when the knob 25 is rotated, the knob 25 drives the outer frame wheel 232 to rotate due to the locking relationship, and The three transmission wheels 231 are simultaneously rotationally engaged with the teeth 34 of the clamping rod 30. Since the inner diameter of the outer frame wheel 232 is larger than the outer diameter of the three transmission wheels 231, and the outer circumference of the three transmission wheels 231 is engaged. The outer frame wheel 232 is rotated one turn, and the three transmission wheel 231 can be rotated a plurality of times, and the tool for squeezing the clip bar 30 can also be rotated rapidly.

A preferred embodiment of the present invention is shown in FIG. 5 and FIG. 6 . A shank tool 40 is attached to the clamping rod 30 , and the steering locating member 211 is adjusted to fix the steering of the shank tool 40 . A bolt 50 is moved, as shown in FIG. 5, when the bolt 50 is in a state of being tight and difficult to loosen, the tool grip 10 is rotated by two hands or a single hand and the bolt 50 is biased to loosen the bolt 50. After unscrewing, as shown in FIG. 6, the tool grip 10 is held by one hand, and the knob 25 of the rotating group 20 is gently rotated by another hand, and the clip is actuated by the operation of the gear set 23. The rod 30 can be rotated rapidly, so that the loose bolt 50 can be quickly unscrewed. Similarly, if the screwing action is to be performed, the knob 25 can be rotated first to quickly lock the bolt 50 to the position, and then Applying force on the tool grip 10 to tighten the bolt 50 not only saves labor but also improves work efficiency, and at the same time, can adjust the state of the bolt 50 with actual tactile feel when rotating, without being forced by force. The head of the bolt 50 is broken.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Anyone having ordinary knowledge in the technical field may use the present invention without departing from the technical features of the present invention. Equivalent embodiments of the local changes or modifications made by the technical content disclosed herein are still within the scope of the features of the present invention.

10‧‧‧Tool grip

11‧‧‧Installation

20‧‧‧Rotating group

21‧‧‧Heart shaft

210‧‧‧ Positioning Department

2101‧‧‧ positioning slot

2102‧‧‧ Ratchet parts

2103‧‧‧ positioning beads

2104‧‧‧ positioning beads

211‧‧‧ steering positioning parts

212‧‧‧ Bearing Department

213‧‧‧ Rod

214‧‧‧ Gear slot

215‧‧‧limit slot

216‧‧‧Fixed holes

217‧‧‧Center shaft hole

22‧‧‧ Bearing

23‧‧‧ Gear Set

231‧‧‧Drive wheel

232‧‧‧Outer wheel

2321‧‧‧ internal tooth surface

2322‧‧‧Cartridge groove

24‧‧‧Chassis

241‧‧‧Perforation

242‧‧‧Fixed parts

25‧‧‧ knob

30‧‧‧Clamping rod

301‧‧‧C buckle

31‧‧‧Clamping Department

32‧‧‧First pole

321‧‧‧ teeth

33‧‧‧Second pole

331‧‧‧ teeth

40‧‧‧Handle tool

50‧‧‧ bolt

60‧‧‧ ratchet screwdriver

61‧‧‧Tool grip

62‧‧‧ steering positioning parts

63‧‧‧Tool chuck

Figure 1 is an external view of a preferred embodiment of the present invention.

Figure 2 is an exploded view of a preferred embodiment of the present invention.

Figure 3 is a partial cross-sectional view of the preferred embodiment of the present invention.

Figure 4 is a top cross-sectional view of the rotating set of the present invention.

Figure 5 is a schematic view of the action of the grip of the present spinning tool.

Fig. 6 is a schematic view showing the operation of the knob of the rotating group of the present invention.

Figure 7 is an external view of a conventional ratchet driver.

20‧‧‧Rotating group

21‧‧‧Heart shaft

210‧‧‧ Positioning Department

2101‧‧‧ positioning slot

2102‧‧‧ Ratchet parts

2103‧‧‧ positioning beads

2104‧‧‧ positioning beads

211‧‧‧ steering positioning parts

212‧‧‧ Bearing Department

213‧‧‧ Rod

214‧‧‧ Gear slot

215‧‧‧limit slot

216‧‧‧Fixed holes

217‧‧‧Center shaft hole

22‧‧‧ Bearing

23‧‧‧ Gear Set

231‧‧‧Drive wheel

232‧‧‧Outer wheel

2321‧‧‧ internal tooth surface

2322‧‧‧Cartridge groove

24‧‧‧Chassis

241‧‧‧Perforation

242‧‧‧Fixed parts

25‧‧‧ knob

30‧‧‧Clamping rod

31‧‧‧Clamping Department

32‧‧‧First pole

321‧‧‧ teeth

33‧‧‧Second pole

331‧‧‧ teeth

Claims (3)

A multi-rotation screwdriver includes: a tool grip attached to the top end to form an open inlet; a rotating set corresponding to the mounting of the tool grip, the rotating set The utility model comprises a shaft shaft correspondingly inserted into the loading port of the tool grip, wherein the mandrel rod is provided with a positioning portion at the top, and a rotatable steering position is arranged on the outer periphery of the positioning portion. The mandrel bar is provided with three gear slots at equal intervals on the outer peripheral surface, and a central shaft hole is axially disposed at a central axis position of the mandrel bar; a bearing is sleeved and fixed to the mandrel The rod is located below the steering positioning member; a gear set includes three transmission wheels and an outer frame wheel that is wrapped and engaged on the outer side of the three transmission wheels, and the three transmission wheel systems are respectively disposed on the mandrel a three-gear slot of the rod; a chassis sleevedly fixed to the mandrel rod and located below the gear set, the chassis is provided with three fixing members, and the three transmission wheels are respectively pivotally fixed to the three gear slots Inside; a knob that is sleeved on the bearing The clamping is fixed on the outer circumferential surface of the outer frame wheel and can rotate the gear set; a clamping rod is disposed on the central shaft hole of the spindle shaft, and the top end of the clamping rod forms a clamping The clamping rod can be made with the three transmission wheels of the gear set and the positioning portion of the spindle shaft. The multiple speed screwdriver of claim 1, wherein the positioning portion of the spindle shaft is provided with two positioning slots on one side, and is respectively disposed in the two positioning slots. An elastically actuable ratchet member is disposed, and a positioning bead groove is defined on a side of the positioning portion different from the two positioning grooves, and an elastically movable positioning bead is disposed in the positioning bead groove. The piece can drive the two ratchet members and the positioning bead to actuate, and the tooth portion of the first rod portion of the clamping rod is engaged with the two ratchet members of the mandrel rod. The multiple speed screwdriver according to claim 2, wherein a first rod portion having a two-stage shape and a second rod portion located below the first rod portion are formed below the clamping portion, and the first rod portion is And the outer peripheral portion of the second rod portion is respectively provided with a tooth portion, the clamping rod is a tooth portion of the second rod portion meshing with an inner circumference of the three transmission wheels of the gear set, and the first portion The tooth portion of the rod portion is engaged with the positioning portion of the spindle shaft.