TWI491515B - Screw cap dismantling device - Google Patents

Description

Nut disassembler

The present invention relates to a nut disassembler, and more particularly to a disassembled structure for a vehicle tire nut.

The conventional nut disassembly structure, as described in the TW553089 patent, generates a reaction force when the two clamp members abut against the nut, so that the first and second clamps are inclined to each other (slightly figure-eight), and This will reduce the clamping effect of the clamp on the nut and cause wear during the subsequent disassembly and assembly. Therefore, there are still many problems in the use of the disassembled structure.

In view of the above problems, it is a primary object of the present invention to provide a nut disassembler capable of improving the problem of not being able to fully clamp the nut.

In order to achieve the above object, the present invention provides a nut disassembler comprising an adjusting member, a supporting rod, a center pillar and two clamping blocks.

The support rod has a third threaded section and two pressing members for locking the third threaded section; the middle pillar has a first through hole and a second through hole, and the first through hole is sleeved on the adjusting member. The second through hole is sleeved on the third thread segment of the support rod; each of the clamping blocks has a clamping portion, a third through hole and a fourth through hole, and the fourth through hole is located between the clamping portion and the third through hole. The adjusting member passes through the third or fourth through hole and can drive the clamping block to move, and the other through hole of the unadjusting adjusting member is movably sleeved on the third threaded portion of the supporting rod, wherein the supporting rod Have this tightness And each of the pressing members can push outwardly against the clamping block when the locking rod is rotated relative to the support rod.

Therefore, when the clamping operation of the nut disassembly is performed, the rotating pressing member can be used to urge the clamping portion to further abut against the nut, thereby improving the clamping effect of the nut, thereby improving the subsequent disassembly and assembly work. Convenience, and at the same time improve the wear and tear of the parts and extend the life of the structure.

1‧‧‧Adjustment

11‧‧‧First thread segment

12‧‧‧Second thread segment

13‧‧‧ Middle section

14‧‧‧ positioning slot

15‧‧‧Drive Department

2‧‧‧Support rod

23‧‧‧ Third thread segment

25‧‧‧forced parts

26‧‧‧Positioning holes

3‧‧‧ center column

31‧‧‧First perforation

33‧‧‧ recessed hole

35‧‧‧First fixed pin

36‧‧‧Second fixed pin

38‧‧‧ concave surface

4‧‧‧Clamp

41‧‧‧Clamping

411‧‧‧ face

412‧‧‧ pin

43‧‧‧ third perforation

431‧‧‧Abutment

45‧‧‧fourth perforation

5‧‧‧ nuts

32‧‧‧Second perforation

Figure 1 is a perspective view of the present invention.

Figure 2 is an exploded view of the present invention.

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

Figure 4 is a schematic view showing the state of use of the present invention.

In the following, the structural features of the present invention and the intended effects thereof will be described in the preferred embodiments, and are not intended to limit the scope of the invention as claimed.

Referring to FIG. 1 to FIG. 3 , the nut disassembler of the present invention comprises an adjusting member 1 , a support rod 2 , a middle column 3 and two clamping blocks 4 .

The adjusting member 1 has a first thread segment 11, a second thread segment 12 and an intermediate portion 13. The first thread segment 11 is opposite to the thread of the second thread segment 12, and the intermediate portion 13 is located at the first Between the threaded section 11 and the second threaded section 12, the intermediate section 13 is provided with a positioning groove 14 which is annularly surrounded. In addition, the adjusting member 1 is provided with a driving portion 15 at one end, and the driving portion 15 has a polygonal outer peripheral surface, and the driving portion 15 is assembled by a tool (such as a wrench) for the tool to drive the adjusting member 1 to rotate.

The support rod 2 has a third threaded section 23 and two pressing members 25 screwed to the third threaded section 23. The pressing member 25 is a nut in the embodiment, and the supporting rod 2 is disposed in the middle. There is a positioning hole 26.

The center post 3 has a first through hole 31, a second through hole 32 and a recessed hole 33. The first through hole 31 is movably sleeved on the adjusting member 1 and can be moved to the intermediate portion 13, that is, the The first through hole 31 is movable in the direction of the adjusting member 1, and the second through hole 32 is movably sleeved on the third threaded portion 23 of the supporting rod 2, that is, the second through hole 32 can be along the direction of the supporting rod 2. Moving, the recessed hole 33 is at one end of the center pillar 3, and the recessed hole 33 is a polygonal hole in the embodiment for tool assembly; the middle pillar 3 is provided with a detachable first fixing pin 35 and a detachable a second fixing pin 36, when the middle column 3 is in the middle portion 13 of the adjusting member 1, the first fixing pin 35 is inserted into the first through hole 31 and protrudes into the positioning groove 14, so that the center column 3 is kept at The intermediate section 13 and the two are still relatively rotatable, and the second fixing pin 36 is inserted into the second through hole 32 and protrudes into the positioning hole 26 to fix the center pillar 3 and the support rod 2 to each other.

The two clamping blocks 4 each have a clamping portion 41, a third through hole 43 and a fourth through hole 45. The clamping portion 41 and the third through hole 43 are respectively located at two ends of the clamping block 4, and the fourth through hole 45 is located at the clamping portion. The fourth through hole 45 has an internal thread for screwing the first thread segment 11 and the second thread segment 12 so that the adjusting member 1 passes through the fourth through hole 45 and Driving the clamping block 4 to move, more specifically, the adjusting member 1 can control the distance between the two clamping blocks 4 when the adjusting member 1 rotates in the reverse direction; the third through holes 43 are movably sleeved on the supporting rod 2 a three-threaded section 23 (wherein the adjusting member can pass through the third or fourth through hole and can drive the clamping block to move, and the other through hole of the adjusting member is movably sleeved on the third of the supporting rod The threaded section does not limit the adjustment member to only pass through the fourth perforation. Wherein the two clamping blocks 4 are disposed adjacent to the third through holes 43 for the The abutting surface 431 is in contact with the pressing surface 431. The abutting surface 431 surrounds the edge of the third perforating 43 and faces the center pillar 3 in this embodiment. The clamping portion 41 of the clamping block 4 has a meandering shape and has two mutually inclined clamping faces 411. Each clamping surface 411 is provided with a plurality of concave grooves, and the clamping surface 411 has a non-planar concave-convex shape to increase the top contact. The stability. Moreover, the clip portion 41 further has a detachable pin 412 so as to be able to be inserted into the recessed hole of the portion to be removed by the pin 412.

Therefore, when the clamping operation of the nut 5 is disassembled (with reference to FIG. 2 and FIG. 4 ), the pressing member 25 is first screwed to the support rod 2 and located in the center pillar 3 and the clamping block 4 . Then, by rotating the adjusting member 1 to drive the two clamping blocks 4 closer to or away from each other, more specifically, the supporting rod 2 is provided with the pressing member 25, and each of the pressing members 25 is screwed relative to the supporting rod 2 When rotating, the clip 4 can be pushed outward, and the distance between the two clamps 4 is adjusted, so that the clamp portion 41 of the clamp 4 can clamp the nut 5 to be disassembled; when the clamp portion 41 clamps the nut 5 Immediately afterwards, each of the pressing members 25 can be driven to move to both ends of the support rod 2 to increase the clamping effect of the clamping portion 41. More specifically, each of the pressing members 25 can be screwed relative to the supporting rod 2 Pushing the abutting surface 431 to drive the clamping block 4 relative to the support rod 2, and using the pressing member 25 to guide the clamping block 4, driving the clamping portion 41 to further approach and clamping the nut 5 (Fig. 4) As shown in the figure), the clamping stability is improved, and the problem that the gap between the various parts is conventionally used and the nut cannot be surely clamped can be improved.

Therefore, the present invention is characterized in that when the nut is clamped, the rotating pressing member 25 can be used to urge the clamping portion 41 to further abut against the nut 5, thereby improving the clamping effect of the nut 5, thereby improving the subsequent disassembly. The convenience of loading work, and at the same time improve the wear and tear of the parts, and prolong the service life of the structure.

Furthermore, the design of the pressing member 25 can improve the supporting effect and increase the overall rigidity, so that the force transmission is more direct during the subsequent rotation and disassembly using the middle column 3. There will be no cases where the use of the gap is too large and there is looseness and instability.

It is to be noted that, in this embodiment, the center pillar 3 is provided with a concave inner surface 38 on both sides adjacent to the second through hole 32, and the concave surface 38 corresponds to the shape of the pressing member 25. The pressing member 25 can be accommodated; thereby, the pressing member 25 can be received against the concave surface 38 after use.

Summarizing the above, the nut disassembler of the present invention not only has a structural innovation, but also has a progressive effect, and complies with the relevant provisions of the Patent Law, and filed a patent application according to law, and the Office of the Administration has approved the patent as soon as possible.

1‧‧‧Adjustment

15‧‧‧Drive Department

2‧‧‧Support rod

25‧‧‧forced parts

3‧‧‧ center column

33‧‧‧ recessed hole

35‧‧‧First fixed pin

36‧‧‧Second fixed pin

38‧‧‧ concave surface

4‧‧‧Clamp

41‧‧‧Clamping

Claims (8)

A nut disassembler comprising: an adjusting member; a supporting rod having a third threaded section and two pressing members for locking the third threaded section; a center pillar having a first through hole and a first The second through hole is sleeved on the adjusting member, the second through hole is sleeved on the third thread segment of the support rod; the two clamping blocks each have a clamping portion, a third perforating and a fourth a through hole, the fourth through hole is located between the clamping portion and the third through hole, the adjusting member passes through the third or fourth through hole and can drive the clamping block to move, and the other through hole of the adjusting member is movable The grounding sleeve is disposed on the third thread segment of the support rod, wherein the pressing rod is provided with the pressing member, and each of the pressing members can push outwardly against the clamping block when the locking rod is rotated relative to the supporting rod. The nut disassembler of claim 1, wherein the center post is provided with an inner concave surface adjacent to the second perforation, the inner concave surface for receiving the pressing member. The nut disassembler of claim 1, wherein the adjusting member is provided with a driving portion at one end, the driving portion having a polygonal outer peripheral surface. The nut disassembler of claim 1, wherein the support rod is provided with a positioning hole, and the middle column is provided with a detachable second fixing pin, and the second fixing pin extends into the positioning hole. The nut disassembler of claim 1, wherein the clamping portion of the clamping block has a meandering shape and has two mutually inclined clamping faces. The nut disassembler of claim 5, wherein each of the faces is provided with a plurality of grooves. The nut disassembler of claim 1, wherein the adjusting member has a first thread segment, a second thread segment and an intermediate segment, the first thread segment being opposite to the thread of the second thread segment, The intermediate section is located between the first thread segment and the second thread segment, and each of the fourth holes is screwed to the first thread segment and the second thread segment. The nut disassembler of claim 7, wherein the intermediate section is provided with a positioning groove surrounded by an annular shape, the middle column is provided with a detachable first fixing pin, and the first fixing pin extends into the positioning groove .