TWM537965U - Power tool linkage adjustment device - Google Patents

Description

Power tool linkage adjustment device

The present invention relates to the field of power tool technology, and in particular to a power tool linkage adjustment device.

With the diversification of power tools, electric tools have many functional modes such as Screw, Drill, and Hammer. The torque output and speed output can be adjusted. The gear box of such a power tool generally includes a gear box body, and the gear box body is respectively provided with switching devices such as a function switching device and a speed switching device.

In the gearbox structure of the conventional power tool, the Chinese patent of the patent application No. 201210275803.9 discloses a power tool having a vibration mechanism, the speed switching adopts a shift lever and a push switch structure, a shift lever and a push switch connection speed switching ring, The push switch is slidably coupled to the surface of the gear box body in the axial direction, and the speed is switched by pushing the push switch back and forth to push the speed of the speed switching ring; and the function switching of the electric drill, the impact drill and the electric hammer needs to be rotated by the adjusting ring. The adjusting ring is respectively connected with the vibration switching ring and the impact switching ring. When such a gear box selects different functions, it is generally required to respectively implement a combination of a push switch and a rotation adjustment ring, and two actions are required to achieve the use condition, which is inconvenient to use, such as the position of the push switch and the position adjustment of the adjustment ring. Incorrect, it will affect the actual function. Of course, there are now power tools that also perform speed switching through ring rotation, but the switching adjustment of different contents such as function and speed is still performed separately, which is inconvenient to use and has low operating efficiency.

Based on this, it is necessary to provide a power tool linkage adjustment device that is convenient to operate and has reliable adjustment and can realize linkage adjustment of different contents.

A power tool linkage adjustment device includes:

The first adjusting ring pivotally drives the state switching of the first switching device, and the top end is provided with an annular groove distributed in the circumferential direction, and the annular groove bottom is convexly provided with the positioning convex block;

a second adjusting ring pivotally and axially displaceably drives a state switching of the second switching device, the lower sliding sleeve is embedded in the annular groove, and the second adjusting ring is embedded in the bottom end of the annular groove to be opened and positioned a matching groove of the bump, the second adjusting ring ring wall is convexly convexly provided with a positioning pin;

The clutch ring is pivotally sleeved in the first adjusting ring and sleeved with the second adjusting ring, and the clutch ring is provided with an eccentric groove slidingly matched with the positioning pin on one side of the ring of the positioning pin. The eccentric groove includes an ascending section, a descending section and a stop section, the starting end of the rising section coincides with the end of the descending section, and the stopping section is disposed between the end of the rising section and the starting end of the descending section, and the stopping section The middle part is concave.

In one embodiment, the second adjusting ring ring wall is radially provided with a pin hole, and the positioning pin is inserted into the pin hole at one end and the eccentric groove into the other end.

In one embodiment, the second adjusting ring is symmetrically opened with the pin holes, and the positioning pin is inserted into each pin hole, and the eccentric groove is disposed corresponding to the positioning pin.

In one embodiment, an elastic return device is disposed between the second adjustment ring and the clutch ring.

In one embodiment, the elastic returning device is a compression spring, and the bottom of the second adjusting ring is radially convexly provided with a boss, and the clutch ring is provided with a receiving cavity in the axial direction corresponding to the position of the boss. The compression spring is received in the accommodating cavity and presses against the boss.

In one embodiment, the clutch ring is sleeved on an inner side of the second adjustment ring.

In one embodiment, a handle portion is protruded from the upper portion of the second adjustment ring.

In one embodiment, the first adjustment ring is a speed adjustment ring and the second adjustment ring is a function adjustment ring.

In the above-mentioned power tool linkage adjusting device, when the positioning protrusion of the first adjusting ring is engaged with the card slot of the second adjusting ring, the first adjusting ring is linked with the second adjusting ring, thereby realizing the first switching device and the second switching device. Linkage switching to achieve integrated switching between the two states; if one of the states is to be switched separately, the second adjusting ring can be pulled axially to disengage the card slot from the positioning bump, and the positioning pin slides along the eccentric groove When sliding to the stop segment, the second adjustment ring is kept in the disengaged position, so that the first adjustment ring and the second adjustment ring can respectively perform the purpose of independent switching operation, and can be separately adjusted, and can be adjusted and switched. Convenient, reliable operation, improved switching efficiency and ease of use.

In order to facilitate the understanding of the present work, the present author will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present work are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided for the purpose of making the understanding of the present disclosure more thorough.

As shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , a power tool linkage adjustment device includes:

The first adjusting ring 10 pivotally drives the state switching of the first switching device, and the top end is provided with an annular groove 110 distributed in the circumferential direction, and the positioning groove 120 is convexly formed on the groove bottom of the annular groove 110.

The second adjusting ring 20 is pivotally and axially movable to drive the state switching of the second switching device, the lower sliding sleeve is embedded in the annular groove 110, and the second adjusting ring 20 is embedded in the bottom end of the annular groove 110. The positioning groove 120 is matched with the positioning groove 120, and the positioning ring 220 is radially protruded from the ring wall of the second adjusting ring 20.

The clutch ring 30 is pivotally sleeved in the first adjusting ring 10 and sleeved with the second adjusting ring 20 , and the clutch ring 30 is disposed on the one side ring wall of the positioning pin 220 and the positioning pin 220 a sliding fit eccentric groove 310, the eccentric groove 310 includes a rising portion 311, a descending portion 312, and a stop portion 313, the starting end of the rising portion 311 coincides with the end of the falling portion 312, and the stopping portion 313 is disposed in the rising portion Between the end of 311 and the beginning of the descending section 312, the middle of the stop section 313 is concave.

When the positioning protrusion 120 of the first adjusting ring 10 is engaged with the card slot 210 of the second adjusting ring 20, the first adjusting ring 10 and the second adjusting ring 20 are interlocked, thereby implementing the first switching device. Linkage switching with the second switching device to achieve an integrated switching of the two states.

When the one of the two states is to be switched, the second adjusting ring 20 can be pulled in the axial direction to disengage the card slot 210 from the positioning protrusion 120. At this time, the positioning pin 220 slides along the rising portion 311 of the eccentric groove 310, and slides to When the stop section 313 is stopped, the second adjustment ring 20 is maintained at the disengaged position, so that the first adjustment ring 10 and the second adjustment ring 20 can be independently switched.

When the first adjusting ring 10 and the second adjusting ring 20 are in the state of independent switching, and need to be changed to the interlocking switching, the second adjusting ring 20 is pulled in the axial direction so that the positioning pin 220 is along the concave portion of the stop segment 313. When the stop segment 313 slides and the positioning pin 220 slides along the stop segment 313 to the descending segment 312, the second adjustment ring 20 moves to the end of the descending segment 312 under the constraint guidance of the descending segment 312, thereby causing the card slot 210 engages the positioning protrusion 120, that is, the linkage between the first adjusting ring 10 and the second adjusting ring 20.

The linkage adjustment device can be adjusted separately or in combination, and the switching is convenient, the operation is reliable, and the switching efficiency and the convenience of use are improved.

In one embodiment, the ring wall of the second adjusting ring 20 is radially provided with a pin hole 221, and one end of the positioning pin 220 is inserted into the pin hole 221, and the other end protrudes into the eccentric groove 310. This makes it easy to assemble or repair the replacement locating pin 220.

In one embodiment, the second adjusting ring 20 is symmetrically opened with the pin hole 221, and the positioning pin 220 is inserted into each pin hole 221, and the eccentric groove 310 is corresponding to the positioning pin 220. . By arranging the positioning pin 220 symmetrically, the second adjusting ring 20 is more balanced when adjusted, which improves the operation accuracy and prolongs the service life.

In one embodiment, an elastic restoring device is disposed between the second adjusting ring 20 and the clutch ring 30.

As shown in FIG. 2 and FIG. 3, in a specific embodiment, the elastic restoring device is a compression spring 40, and a protrusion 230 is radially protruded from a bottom of the second adjusting ring 20, and the clutch ring 30 corresponds to the The accommodating cavity 320 is disposed in the axial direction of the boss 230. The compression spring 40 is received in the accommodating cavity 320 and presses the boss 230. When the second adjusting ring 20 is axially pulled to slide the positioning pin 220 along the rising portion 311 of the eccentric groove 310 to the stop portion 313 while keeping the second adjusting ring 20 out of the position of the first adjusting ring 10, the compression spring 40 is compressed. , produces a reset elastic force. When it is required to change to the interlocking switch, the second adjusting ring 20 is pulled in the axial direction, and the positioning pin 220 moves from the recessed portion of the stop segment 313 to the descending portion 312, and the resetting force of the second adjusting ring 20 at the compression spring 40 Under the action, it automatically moves along the descending section 312 to move to the position where the card slot 210 engages the positioning protrusion 120, and maintains the engagement of the card slot 210 and the positioning protrusion 120 under the pressing force of the compression spring 40. Improved operational convenience and switching reliability.

In one embodiment, the clutch ring 30 is sleeved on the inner side of the second adjustment ring 20 . Thus, the clutch ring 30 is inside, and the first adjusting ring 10 and the second adjusting ring 20 are outside, on the one hand, switching marks can be arranged on the surfaces of the first adjusting ring 10 and the second adjusting ring 20 for easy operation; on the other hand, the structure can be maintained. Compact and space saving.

In one embodiment, the handle portion 250 is protruded from the upper portion of the second adjusting ring 20 . It is convenient to axially pull the second adjusting ring 20.

In one embodiment, the first adjustment ring 10 is a speed adjustment ring and the second adjustment ring 20 is a function adjustment ring.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the inventive concept, which are all within the scope of the present invention. Therefore, the scope of protection of this patent application is subject to the appended claims.

10‧‧‧First adjustment ring
110‧‧‧ring groove
120‧‧‧Positioning bumps
20‧‧‧Second adjustment ring
210‧‧‧ card slot
220‧‧‧Locating pin
221‧‧ ‧ pinhole
230‧‧‧Boss
250‧‧‧Hands
30‧‧‧Clutch ring
310‧‧‧Eccentric slot
311‧‧‧ rising section
312‧‧‧Descent
313‧‧‧stop segment
320‧‧‧容容
40‧‧‧Compression spring

1 is a schematic structural view of a power tool linkage adjustment device according to an embodiment; [FIG. 2] is a schematic exploded view of an internal structure of a power tool linkage adjustment device according to an embodiment; [FIG. 3] is an electric system in an embodiment. FIG. 4 is a schematic structural view of a first adjusting ring of a power tool linkage adjusting device according to an embodiment; FIG. 5 is a second adjusting ring of the power tool linkage adjusting device in an embodiment; FIG. FIG. 6 is a schematic structural view of a clutch ring of a power tool linkage adjusting device according to an embodiment.

10‧‧‧First adjustment ring

20‧‧‧Second adjustment ring

250‧‧‧Hands

30‧‧‧Clutch ring

Claims (8)

The utility model relates to a power tool linkage adjusting device, comprising: a first adjusting ring pivotally driving a state switching of the first switching device, wherein the top end is provided with an annular groove distributed in the circumferential direction, and the annular groove bottom is convexly arranged a second adjusting ring pivotally and axially displaceably drives the state switching of the second switching device, the lower sliding sleeve is embedded in the annular groove, and the second adjusting ring is embedded in the bottom end of the annular groove a card slot matching the positioning protrusion, the second adjusting ring ring wall is radially convexly provided with a positioning pin; the clutch ring is pivotally sleeved in the first adjusting ring and the second adjusting ring The eccentric groove is disposed on a side ring wall of the positioning pin, and the eccentric groove includes a rising portion, a descending portion and a stop portion, and the starting end of the rising portion is The ends of the descending segments coincide, and the stop segments are disposed between the end of the rising section and the starting end of the falling section, and the middle of the stopping section is concave. The power tool linkage adjusting device according to claim 1, wherein the second adjusting ring ring wall is provided with a pin hole radially, the positioning pin is inserted into the pin hole at one end, and the other end is inserted into the Eccentric slot. The power tool linkage adjustment device of claim 2, wherein the second adjusting ring is symmetrically opened with the pin hole, and the positioning pin is inserted into each pin hole, and the eccentric groove and the eccentric groove are The positioning pin corresponds to the setting. The power tool linkage adjustment device according to claim 1, wherein the elastic adjustment device is disposed between the second adjustment ring and the clutch ring. The power tool linkage adjustment device of claim 4, wherein the elastic reset device is a compression spring, a bottom of the second adjustment ring is radially convex, and a clutch ring corresponds to the boss. The position is axially opened with an accommodating cavity, and the compression spring is received in the accommodating cavity and presses the boss. The power tool linkage adjustment device according to any one of claims 1 to 5, wherein the clutch ring is sleeved on an inner side surface of the second adjustment ring. The power tool linkage adjustment device according to claim 6, wherein the handle portion is protruded from the upper portion of the second adjustment ring. The power tool linkage adjustment device according to claim 6, wherein the first adjustment ring is a speed adjustment ring, and the second adjustment ring is a function adjustment ring.