TWM498654U - Piston pin detachment tool of cylinder piston - Google Patents

Description

Piston piston piston pin removal tool

This creation is about a piston pin removal tool for a cylinder piston, especially one that can be easily held by a finger, does not hurt the finger when used, and can stably and quickly disassemble the piston pin for quick disassembly of the piston and the connecting rod. .

Press, the piston and the connecting rod in the cylinder of the general vehicle engine are pivotally connected by the piston pin. When the piston and the connecting rod are to be disassembled, most of the piston is fixed on the vise, and then the tool is aligned with the tool (such as iron). The pin hole is hammered with a hammer, and the piston pin is hammered out from the pin hole of the piston to disassemble the piston and the connecting rod, and then the piston pin is disassembled by hammering, which may injure the piston accidentally. Or a connecting rod, and it is extremely inconvenient to use, and there is a disassembling tool 1, as shown in the first figure, mainly provided with a screw 10, the rod of the screw 10 is provided with a thread 100, the screw 10 A locating member 11 is screwed on one end of the screw. The locating member 13 is sleeved on the screw 10. The locating member 12 is provided with a surface 120 for the positioning sleeve 13 to be stabilized. The other end of the screw 10 is a fixed end 101. The fixed end 101 is sleeved with a resisting block 14 and is provided with a nut 15 so as to be a piston pin dismounting tool of a cylinder piston; When disassembling the piston 20 and the connecting rod 21, please refer to the second figure, the snail is The rod 10 extends through the through hole 220 of the piston pin 22 of the piston 20, so that the fixed end 101 of the screw 10 extends out of the piston pin 22, and the resisting block 14 is sleeved on the fixed end 101 of the screw 10. The nut 15 is screwed onto the fixed end 101 of the screw 10, and the resisting block 14 is abutted against one end surface of the piston pin 22. Then, the positioning member 12 is rotated to move on the screw 10. The positioning member 12 is The positioning sleeve 13 is moved to abut against one end of the positioning sleeve 13 on the outer wall surface of the piston 20, so that when the grip member 11 is held by the hand, the positioning member 12 and the positioning sleeve are rotated. The positioning and abutment of the cylinder 13 and the positioning of the abutting block 14 and the nut 15 , the screw 10 rotating with the gripping member 11 can drive the piston pin 22 to the outside of the piston 20 to move and enter the piston pin 22 . In the pocket 130 of the positioning sleeve 13, when the piston pin 22 is completely separated from the pin holes 200 and 210 of the piston 20 and the connecting rod 21, the connecting rod 21 can be detached from the piston 20, however, the conventional cylinder piston is The piston pin dismounting tool has a screw body 10 which is completely covered with the thread 100. When the finger is gripped on the grip member 11, the finger is pinched by the finger. The screw 10 is frictionally wound with the thread 100 of the screw 10, and the grip member 11 is screwed with the thread 100 of the screw 10 through the screw hole 110. When the grip member 11 is rotated in the reverse direction, the grip member thereof is gripped. 11 will spin off from the screw 10 and fall off, and the grip member 11 cannot be firmly fixed on the screw 10, which is extremely inconvenient to use; therefore, the creator has in view of the use of the piston pin removal tool of the general cylinder piston. There is a lack of the above, but it is painstaking research and improvement, and I was able to create this creation.

The purpose of this creation is to provide a piston pin that can be easily held by a finger, does not hurt the finger when used, and can stably and quickly disassemble the cylinder piston.

The piston pin dismounting tool of the cylinder piston of the present invention is mainly provided with a screw, the rod body of which is provided with a first thread, one end of the screw is set as a connecting end, and the connecting end is provided with a second thread, the screw is provided The other end is set as a fixed end, and the fixed end is provided with a third thread; a holding member is screwed on the connecting end of the screw, and the holding member is provided with a first screw hole; a screw is disposed on the screw, the positioning member is provided with a surface, the cutting surface is provided with a screw hole; a positioning sleeve is sleeved on the screw, and one end thereof abuts against the cutting surface of the positioning member, The positioning sleeve is provided with a receiving groove, and a side of the positioning sleeve is provided with a through hole extending through the receiving groove; a resisting block is sleeved on the fixed end of the screw, and the resisting block is provided with a perforation a nut is disposed on the fixed end of the screw; and is characterized in that: a connecting cutting surface is arranged on the connecting end of the screw, and a connecting point of the screw and the connecting end is provided with a threadless holding surface, a second surface of the holding member is perpendicular to the first screw hole a screw hole, the second screw hole is threaded through the first screw hole, and the second screw hole is screwed with a fixing screw, and the fixing screw is abutted against the positioning cut surface of the screw.

The piston pin dismounting tool of the cylinder piston of the present invention, wherein the pointing surface of the screw is marked with an indication mark, which is aligned with the positioning cut surface of the screw, and the indication mark is for the positioning of the screw The fixing screw position of the holding member is convenient for fixing the position of the screw.

The piston pin dismounting tool of the cylinder piston of the present invention, wherein the fixing screw has a hexagon socket hole for convenient insertion of the hexagonal tool.

For the purpose of achieving the above-mentioned purpose and effect of the above-mentioned use, a preferred and feasible embodiment will be described, and the details are as follows:

For the embodiment of the present invention, as shown in the third and fourth figures, a screw 3 is mainly provided. The rod 3 of the screw 3 is provided with a first thread 30, and one end of the screw 3 is provided as a connecting end 31. The end 31 is provided with a second thread 32. The connecting end 31 is provided with a positioning cutting surface 33. The connecting portion of the screw 3 and the connecting end 31 is provided with a non-threaded holding surface 34. The other end of the screw 3 is defined as a fixed end 36. The fixed end 36 is provided with a third thread 37. A holding member 4 is screwed on the connecting end 31 of the screw 3, and the holding is performed. The first screw hole 40 is disposed on the wall of the holding member 4, and a second screw hole 41 is disposed at a position perpendicular to the first screw hole 40. The second screw hole 41 is threaded through the first screw hole. a fixing screw 42 is disposed in the second screw hole 41. The fixing screw 42 is provided with a hexagonal hole 43. The fixing screw 42 is abutted against the positioning slice 33 of the screw 3; The positioning member 5 is screwed on the screw 3. The positioning member 5 is provided with a face 50. The cutting surface 50 is provided with a screw hole 51. A positioning sleeve 6 is sleeved on the screw. One end of the rod 3 is abutted against the cutting surface 50 of the positioning member 5. The positioning sleeve 6 is provided with a receiving groove 60. One side of the positioning sleeve 60 is provided with a through hole 61 extending through the receiving groove 60. a resisting block 7 is sleeved on the fixed end 36 of the screw 3, the resisting block 7 is provided with a through hole 70; a nut 8 is screwed on the fixed end 36 of the screw 3, so It is the piston pin removal tool for a cylinder piston.

When combining, referring to the third and fourth figures, the connecting end 31 of the screw 3 is first screwed into the first screw hole 40 of the gripping member 4, so that the indicator mark 35 on the abutting surface 34 of the screw 3 is opposite. At the position of the second screw hole 41 of the grip member 4, the positioning cut surface 33 of the screw 3 is aligned with the position of the second screw hole 41 of the grip member 4, and the fixing screw member 42 is screwed to the grip by the tool. In the second screw hole 41 of the holding member 4, the end portion of the fixing screw 42 abuts against the positioning cutting surface 33 of the screw 3, so that the holding member 4 does not rotate on the screw 3, and the holding member can be held. 4 is stably positioned on the screw 3, does not loosen, and then the positioning member 5 is screwed on the screw 3, the positioning sleeve 6 is sleeved on the screw 3, and the resisting block 7 is sleeved on the screw 3 On the fixed end 36, the nut 8 is screwed onto the fixed end 36 of the screw 3, so that the overall assembly can be completed.

When in use, when using, please refer to the fourth to seventh figures. First, the nut 8 and the resisting block 7 on the fixed end 36 of the screw 3 are removed from the screw 3, and then the screw 3 is inserted into the piston. In the perforation 220 of the piston pin 22 of the 20, the resisting block 7 is sleeved back onto the fixed end 36 of the screw 3, and the nut 8 is screwed back to the fixed end 36 of the screw 3, and the positioning member 5 is screwed to the screw 3. Rotating upwardly causes the positioning member 5 to push the positioning sleeve 6 to move toward the wall surface of the piston 20 until the end portion of the positioning sleeve 6 abuts against the wall surface of the piston 20, and is abutted against one end of the piston pin 22 by the resisting block 7. And the positioning sleeve 6 abuts against the wall surface of the piston 20, and then holds the gripping member 4 by hand (as shown in FIG. 5), and rotates the gripping member 4, and the gripping member 4 drives the screw 3 to rotate. The screw 3 is rotated outwardly in the screw hole 51 of the positioning member 5. The screw 3 rotates and drives the resisting block 7 and the nut 8 to move. The resisting block 7 and the nut 8 push the piston pin 22 outward. To the cavity 60 of the positioning sleeve 6 (as shown in the seventh figure), when the piston pin 22 is completely disengaged from the pin holes 200 and 210 of the piston 20 and the connecting rod 21, the connecting rod 21 and the piston 20 can be disassembled. So, no damage The plug 20 and the connecting rod 21 are very convenient to disassemble; further, the present invention is provided with a smooth and unthreaded holding surface 34 by the screw 3 close to the gripping member 4, which is convenient for finger holding, and the finger does not move when the grip is rotated. The first thread 30 on the screw 3 is frictioned, and the finger is not damaged when used, and the grip member 4 and the screw 3 are fixed by the fixing screw 42 so that the grip member 4 does not rotate when the screw is rotated. 3 is rotated and disengaged from the screw 3, and is extremely stable in use, and the piston pin 22 of the cylinder piston 20 can be stably and quickly disassembled, and the piston 20 and the connecting rod 21 can be easily disassembled, which is very convenient in use.

In summary, the present invention has achieved the intended use and effect, and is more desirable and practical than the prior art. However, the above embodiments are only specifically described for the preferred embodiment of the present invention. This embodiment is not intended to limit the scope of the present invention, and all other equivalents and modifications may be included in the scope of the invention covered by the present invention.

1‧‧‧Disassembly tool
10‧‧‧ screw
100‧‧‧ thread
101‧‧‧ fixed end
11‧‧‧ Holding parts
110‧‧‧ screw holes
12‧‧‧ Positioning parts
120‧‧‧faced
13‧‧‧ positioning sleeve
130‧‧‧ 容容
14‧‧‧Resistance block
15‧‧‧ nuts
20‧‧‧Piston
200‧‧ ‧ pinhole
21‧‧‧ Connecting rod
210‧‧ ‧ pinhole
22‧‧‧ piston pin
220‧‧‧Perforation
3‧‧‧ screw
30‧‧‧First thread
31‧‧‧Connected end
32‧‧‧second thread
33‧‧‧ positioning section
34‧‧‧Responsible
35‧‧‧Indicator mark
36‧‧‧Fixed end
37‧‧‧ Third thread
4‧‧‧ Holding parts
40‧‧‧First screw hole
41‧‧‧Second screw hole
42‧‧‧Fixed screws
43‧‧‧ hex socket
5‧‧‧ Positioning parts
50‧‧‧faced
51‧‧‧ screw holes
6‧‧‧ positioning sleeve
60‧‧‧ 容容
61‧‧‧Perforation
7‧‧‧Resistance block
70‧‧‧Perforation
8‧‧‧ nuts

The first figure shows a three-dimensional combination of conventional removal tools. The second figure shows a schematic diagram of the use of a conventional disassembly tool. The third figure is a perspective exploded view of the present embodiment. The fourth figure is a three-dimensional combination diagram of the present embodiment. The fifth figure is a schematic view of the three-dimensional use of the present embodiment. The sixth figure is a schematic cross-sectional view showing the use of the present embodiment. The seventh figure is a schematic cross-sectional view showing another use of the present embodiment.

3‧‧‧ screw

30‧‧‧First thread

31‧‧‧Connected end

32‧‧‧second thread

33‧‧‧ positioning section

34‧‧‧Responsible

35‧‧‧Indicator mark

36‧‧‧Fixed end

37‧‧‧ Third thread

4‧‧‧ Holding parts

40‧‧‧First screw hole

41‧‧‧Second screw hole

42‧‧‧Fixed screws

43‧‧‧ hex socket

5‧‧‧ Positioning parts

50‧‧‧faced

51‧‧‧ screw holes

6‧‧‧ positioning sleeve

60‧‧‧ 容容

61‧‧‧Perforation

7‧‧‧Resistance block

70‧‧‧Perforation

8‧‧‧ nuts

Claims (3)

A piston pin dismounting tool for a cylinder piston is provided with a screw having a first thread on a rod body, one end of the screw is a connecting end, and the connecting end is provided with a second thread, and the other end of the screw The fixing end is provided with a third thread; a holding member is screwed on the connecting end of the screw, the holding member is provided with a first screw hole; and a positioning member is screwed On the screw, the positioning member is provided with a surface, the cutting surface is provided with a screw hole; a positioning sleeve is sleeved on the screw, and one end thereof abuts against the cutting surface of the positioning member, the positioning a sleeve is disposed in the sleeve, a side of the positioning sleeve is provided with a through hole extending through the receiving groove; a resisting block is sleeved on the fixed end of the screw, and the resisting block is provided with a through hole; The nut is screwed on the fixed end of the screw; the feature is: a connecting cutting surface is arranged on the connecting end of the screw, and a connecting point of the screw and the connecting end is provided with a threadless holding surface, the grip a second screw hole is disposed on a wall surface of the holding member perpendicular to the first screw hole, The second screw hole is threaded through the first screw hole, and the second screw hole is screwed with a fixing screw, and the fixing screw is abutted against the positioning cut surface of the screw. The piston pin dismounting tool for a cylinder piston according to claim 1, wherein the indicating surface of the screw is marked with an indication mark, and the indicator mark is aligned with the positioning cut surface of the screw, and the indicator mark is for the The positioning of the screw faces the fixed screw position of the grip. The piston pin removal tool for a cylinder piston according to claim 1, wherein the fixing screw is provided with a hexagon socket.