TWI804426B - Fixing member removal tool - Google Patents

Abstract

A fixing member removal tool is provided, including: a collet, having an outer inclined face, the outer inclined face having a first thread section, a first end portion of the collet having an opening; and a sleeve, including a through hole and an abutting portion, the abutting portion disposed within the through hole, the abutting portion having a second thread section, the second thread section disposed within the through hole, the second thread section selectively screwed on the first thread section, the collet disposed through the through hole; wherein when the second thread section is screwed on the first thread section and the sleeve is adjusted to move relatively to the collet, the outer inclined face is radially pressed to radially compressed the first end portion to reduce a size of the opening.

Description

Fastener removal tool

The present invention relates to a tool for removing a fastener.

Wheels are locked on the car body with locks, such as bolts, anti-theft screws and the like. The anti-theft screw is used to protect and prevent the wheel from being stolen, and it needs to be unlocked and disassembled with a paired unlock key.

When the lock is unscrewed by excessive torque for many times, the surface of the driving part will be worn or the teeth will slip, so that the disassembly tool cannot be driven synchronously. In addition, the special-shaped cap of the anti-theft screw is damaged and stuck, and it is not easy to disassemble. Again, if the unlock key is lost, the anti-theft screw cannot be dismantled.

Under the above-mentioned conditions, a grinder is usually used to grind out a plurality of grooves on the driving part or weld them off, but the wheel is easily damaged in the process. In addition, there is also a sleeve with a size smaller than that of the driving part, which is sleeved on the driving part and knocked in and tightly matched for disassembly. However, the foregoing disassembly methods have disadvantages such as numerous steps and time-consuming.

Therefore, it is necessary to provide a novel and progressive fastener removal tool to solve the above-mentioned problems.

The main purpose of the present invention is to provide a fixing member removal tool, which can hold a fixing member to facilitate the removal of the fixing member.

In order to achieve the above object, the present invention provides a fastener removal tool, comprising: a collet, which is provided with an outer inclined surface, the outer inclined surface is provided with a first thread segment, and a first end of the collet is provided with an opening; and A sleeve, which includes a perforation and an abutment portion, the abutment portion is arranged in the perforation hole, the abutment portion is provided with a second threaded section, the second threaded section is arranged in the perforation hole, the second threaded section Optionally screwed to the first threaded segment, the collet passes through the through hole; wherein, when the second threaded segment is screwed to the first threaded segment and the sleeve is screwed to move relative to the collet, the outer slope is affected Pressing makes the first end shrink radially to narrow the opening; wherein, the first end is additionally provided with a flange, and the flange protrudes radially toward the collet; wherein, the flange is formed on the opening ; Wherein, the opening and the flange allow a fixing piece to pass through and the flange can buckle the fixing piece.

1: Fixture removal tool

2: Fixing parts

3: Tools

10: collet

11: Outer bevel

12: The first thread segment

13: first end

14: opening

15: Flange

16: shaft hole

17: Grooving

18: second end

19: through hole

101: Internal thread segment

102: middle section

20: Sleeve

21: perforation

211: The first hole segment

212: The second hole segment

213: The third hole section

22: Second thread segment

221: screw peak

23: end

24: Knob part

25: Shoulder

26: Arrival Department

A: axis line

B: Reference line

A1: axial dimension

A2: axial dimension

Fig. 1 is a perspective view of a preferred embodiment of the present invention.

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

Fig. 3 is a sectional view of a preferred embodiment of the present invention.

Fig. 4 is a schematic diagram of the operation of a preferred embodiment of the present invention.

Fig. 5 is a sectional view of a sleeve of a preferred embodiment of the present invention.

Fig. 6 is a diagram of a usage state of a preferred embodiment of the present invention.

The following examples illustrate the possible implementation of the present invention, but are not intended to limit the scope of protection of the present invention. The "one" or "at least one" before the nouns mentioned in the text are not logarithmic Quantity is limited, and it can also be "plural" according to the demand. The change in this quantity is also within the scope of protection, which will be described first.

Please refer to FIGS. 1 to 6 , which show a preferred embodiment of the present invention. The fastener removal tool 1 of the present invention includes a collet 10 and a sleeve 20 .

The collet 10 is provided with an outer bevel 11, and the outer bevel 11 is provided with a first thread segment 12, and a first end 13 of the collet 10 is provided with an opening 14, and the first end 13 uses the opening 14 for a A fixing part 2 (such as a lock for a wheel or other fixing parts connecting two objects) passes through and is sleeved on the fixing part 2 . The sleeve 20 includes a perforation 21 and an abutment portion 26, the abutment portion 26 is disposed in the perforation 21, the abutment portion 26 is provided with a second threaded section 22, and the second threaded section 22 is arranged in the perforation 21 Inside, the second threaded section 22 is selectively screwed to the first threaded section 12, and the collet 10 passes through the through hole 21; wherein, when the second threaded section 22 is screwed to the first threaded section 12 and screwed The sleeve 20 moves relative to the collet 10, and the outer inclined surface 11 is pressed (pressed radially by the pressing portion 26) so that the first end portion 13 (forced) shrinks radially to narrow the opening 14 and provide Clamp the fixture 2. In this way, the fixing member 2 can be clamped for disassembly operation, which facilitates the removal of the fixing member 2 . It is worth mentioning that when the second threaded section 22 is screwed to the first threaded section 12, the first end 13 and the collet 10 are firmly combined during screw adjustment or positioning, and are not easily affected by other The radial deformation relative to the collet 10 is arbitrarily deformed by external force, so that the size of the opening 14 can be stably maintained. Wherein, the clamping can refer to clamping, clamping against or sleeved on the upper non-clamping state.

The outer inclined surface 11 is an inclined conical surface that tapers away from the opening.

The first end 13 is further provided with a flange 15, the flange 15 protrudes radially towards the inside of the collet 10, the flange 15 is formed in the opening 14, the opening 14 and the flange 15 can be used for the fixing The part 2 passes through and the flange 15 can be used to buckle the fixing part 2, and the flange 15 can be used to clamp the fixing part 2. The end edge of the fixing part 2 is beneficial to drive and remove the fixing part 2.

The sleeve 20 further includes a knob portion 24 for the user to rotate to drive the collet 10 to rotate.

The collet 10 is further provided with a shaft hole 16, and the first end portion 13 is further provided with a plurality of split grooves 17 arranged at intervals, and the shaft hole 16 communicates with the plurality of split grooves 17 and the opening 14, so that the first end portion 13 It can be elastically deformed radially to reduce the size of the opening 14 . Specifically, the shaft hole 16 may or may not be connected to the plurality of split grooves 17 , and the shaft hole 16 can accommodate the fixing member 2 .

A second end 18 of the collet 10 radially passes through a through hole 19; in this embodiment, the shaft hole 16 communicates with the through hole 19; Parts drive the collet 10 to rotate, and the inside of the shaft hole 16 can be viewed from the through hole 19.

The collet 10 is provided with an internal thread section 101 in the shaft hole 16 . The shaft hole 16 of the collet 10 intersects the internal thread section 101 . The internal thread section 101 can be screwed to the screw rod of a tool 3 and the locking degree of the screw rod of the tool 3 can be seen from the shaft hole 16. For example, the tool 3 is a puller, which is driven by the tool 3 The collet 10 moves axially.

The sleeve 20 defines an axis line A and a reference line B. The axis line A extends along an axial direction. The second thread segment 22 includes a plurality of spiral crests 221. The center is connected in a spiral shape, the reference line B extends through the apex of at least two spiral peaks 221 along the axial direction, the reference line B is parallel to the axis A, so as to lift the first end 13 to be forced Radial contraction range when the abutment 26 is compressed. The pressing portion 26 extends along the axial direction, and the axial direction is parallel to the axis A. As shown in FIG.

The perforation 21 includes a first hole section 211 and a second hole section 212, the first hole section 211 is arranged at an end 23 of the sleeve 20, the second hole section 212 is adjacent to the first hole section 211 , the first hole section 211 is provided with the second threaded section 22, an inner diameter of the first hole section 211 is smaller than an inner diameter of the second hole section 212; preferably, the second threaded section 22 An axial dimension A1 is smaller than an axial dimension of the second hole section 212 Inch A2. Accordingly, when the sleeve 20 is screwed, the second hole section 212 has enough avoidance space for the outer inclined surface 11 with increasing outer diameter to pass through without interfering with each other.

The perforation 21 further includes a third hole section 213, an inner diameter of the third hole section 213 is smaller than the inner diameter of the first hole section 211 and the inner diameter of the second hole section 212, and the inner diameter of the second hole section 212 is smaller than the inner diameter of the second hole section 212. The second hole section 212 is located between the first hole section 211 and the third hole section 213, and the collet 10 further includes a middle section 102, the middle section 102 is located at the first end 13 and the second end 18 Between, the middle section 102 passes through the third hole section 213, the inner diameter of the third hole section 213 is slightly larger than the outer diameter of the middle section 102, in this embodiment, the second end An outer diameter of 18 is slightly smaller than the inner diameter of the third hole section 213, so that the second end 18 and the middle section 102 can pass through the through hole 21 smoothly, and can be deflected under force. It is supported by the third hole section 213 to avoid excessive deflection. A shoulder 25 is defined in the through hole 21 , and the shoulder 25 is formed between the second hole section 212 and the third hole section 213 .

In use, the opening 14 of the first end portion 13 allows the fixing member 2 to pass through and be sleeved on the fixing member 2, and the sleeve 20 is rotated so that the second threaded section 22 is screwed into the first threaded section 12 , and make the sleeve 20 screw relative to the collet 10, press the outer inclined surface 11 to shrink the first end 13 to narrow the opening 14 and clamp the fixing member 2 until the sleeve 20 can no longer Then continue screwing for positioning, and screw the tool 3 to the internal thread section 101 to drive the collet 10 in the axial direction to remove the fixing part 2 .

1: Fixture removal tool

10: collet

20: Sleeve

Claims (9)

A fastener removal tool, comprising: a collet with an outer bevel, a first threaded section on the outer bevel, an opening at one of the first ends of the collet; and a sleeve including a perforation and a forcing Abutting portion, the pressing portion is arranged in the through hole, the pressing portion is provided with a second threaded section, the second threaded section is arranged in the through hole, the second threaded section can be selectively screwed to the first threaded section , the collet passes through the through hole; wherein, when the second threaded segment is screwed to the first threaded segment and the sleeve is screwed to move relative to the collet, the outer inclined surface is compressed so that the first end radially contracts ; wherein, the first end is further provided with a flange, which protrudes radially toward the inside of the collet; wherein, the flange is formed in the opening; wherein, the opening and the flange can provide a fixing member Pass through and the flange can be used to buckle the fixing part. The fastener removal tool as claimed in claim 1, wherein the outer slope is a tapered surface that tapers away from the opening. The fastener removal tool as claimed in claim 1, wherein the collet is further provided with a shaft hole, and the first end is further provided with a plurality of split grooves arranged at intervals, and the shaft hole communicates with the opening. The fastener removal tool as claimed in claim 1, wherein a second end of the collet radially passes through a through hole. The fastener removal tool as claimed in claim 4, wherein the collet is provided with a shaft hole, and the shaft hole communicates with the through hole. The fastener removal tool as claimed in claim 5, wherein the collet is provided with an internal thread section in the shaft hole. The fastener removal tool according to any one of claims 1 to 6, wherein the sleeve defines an axis line and a reference line, the axis line extends along an axial direction, and the second thread segment includes a plurality of threads Peaks, the plurality of helical peaks are helically connected with the axis as the center, the reference line extends along the axial direction through at least two peaks of the helical peaks, and the reference line is parallel to the axis. The fastener removal tool as claimed in claim 7, wherein the perforation includes a first hole section and a second hole section, the first hole section is arranged at one end of the sleeve, and the second hole section is adjacent to the first hole section A hole segment, the first hole segment is provided with the second threaded segment, an inner diameter of the first hole segment is smaller than an inner diameter of the second hole segment. The fastener removal tool according to claim 6, wherein the shaft hole of the collet intersects the internal thread section; the sleeve further includes a knob portion; and the first end portion is further provided with a plurality of split grooves arranged at intervals , the shaft hole communicates with the plurality of split grooves and the opening; the sleeve defines an axis line and a reference line, the axis line extends along an axial direction, the second thread segment includes a plurality of helical peaks, and the plurality of helical peaks connected in a helical shape with the axis as the center, the reference line extends through at least two peaks of the spiral peaks along the axis, the reference line is parallel to the axis, the pressing portion extends along the axis, the The axial direction is parallel to the axis line; the perforation includes a first hole section and a second hole section, the first hole section is arranged at one end of the sleeve, the second hole section is adjacent to the first hole section, the The first hole section is provided with the second thread section, and an inner diameter of the first hole section is smaller than an inner diameter of the second hole section; the perforation further includes a third hole section, and the third hole section An inner diameter dimension is smaller than the inner diameter dimension of the first hole section and the inner diameter dimension of the second hole section, the second hole section is located between the first hole section and the third hole section, the collet Also includes a middle section, the middle section is located between the first end and the second end, the middle section passes through the third hole section, the inner diameter of the third hole section is slightly larger than the middle section An outer diameter dimension; a shoulder is provided in the through hole, and the shoulder is formed between the second hole section and the third hole section; an axial dimension of the second thread section is smaller than that of the second hole section An axial dimension.

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