CN112873126A - Rapid installation device for automobile piston ring and use method - Google Patents
Rapid installation device for automobile piston ring and use method Download PDFInfo
- Publication number
- CN112873126A CN112873126A CN202110035102.7A CN202110035102A CN112873126A CN 112873126 A CN112873126 A CN 112873126A CN 202110035102 A CN202110035102 A CN 202110035102A CN 112873126 A CN112873126 A CN 112873126A
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- block
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- arc
- piston
- shaped peripheral
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/12—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same mounting or demounting piston rings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention provides a quick installation device for an automobile piston ring and a using method, and relates to the field of automobile maintenance equipment. This quick installation device of car piston ring, including the chassis, the bottom welded fastening on chassis has the supporting leg, the top fixedly connected with cylindricality arch on chassis, the top on chassis is provided with piston ring activity expansion clamping device, be provided with expansion adjusting device on the piston ring activity expansion clamping device, the inside of piston ring activity expansion clamping device is provided with the piston. This quick installation device of car piston ring can expand the distance increase between welding piece and the dog through turning round tight expansion adjusting bolt, and the distance increase between welding piece and the dog can make the peripheral piece of arc one expand the operation and drive the piston ring and expand along articulated hinge with the peripheral piece two of arc, can directly install the piston ring in annular piston ring groove through placing the piston in the piston standing groove and will expand adjusting bolt and transfer the pine, has effectively made things convenient for the installation of piston ring.
Description
The invention relates to a divisional application of a quick mounting device for an automobile piston ring, which is invented on the application date of 2019, 07, 20 and the application number of 201910657929.4.
Technical Field
The invention relates to the field of automobile maintenance equipment, in particular to a quick installation device for an automobile piston ring and a using method.
Background
The piston ring is used for imbedding the inside becket of piston slot, and the piston ring divide into two kinds: a compression ring and an oil ring. The compression ring is used to seal the combustible mixture in the combustion chamber and the oil ring is used to scrape off excess oil from the cylinder.
No matter whether the piston ring is installed or replaced, the piston ring is required to be installed in the annular groove of the piston, the diameter of the inner ring of the piston is smaller than that of the piston, when the piston ring is installed on the piston, the piston ring needs to be installed in the annular installation groove of the piston after being expanded, the existing piston ring installation pliers have the function of expanding the piston ring, however, the clamping end of the piston ring installation pliers is generally conical so as to conveniently expand the piston ring, the piston ring has elasticity after expansion and extension, the situation that the piston ring is separated from the piston ring can happen when the piston ring installation pliers clamp the piston ring, and after the piston ring is deformed, the elasticity is larger, and the situation that the skin of a human body is cut in the.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a quick mounting device for an automobile piston ring, which solves the problems that the existing piston ring is inconvenient to mount and has potential safety hazards in the mounting process.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a quick installation device of car piston ring, includes the chassis, the bottom welded fastening on chassis has the supporting leg, the top fixedly connected with cylindricality arch on chassis, the top on chassis is provided with piston ring activity expansion clamping device, be provided with the expansion adjusting device on the piston ring activity expansion clamping device, piston ring activity expansion clamping device's inside is provided with the piston, annular piston ring groove has been seted up to the surface of piston, the piston standing groove has been seted up at the bellied top of cylindricality, the inside at the piston standing groove is placed to the piston, piston ring activity expansion clamping device's inside is provided with the piston ring and places the piece.
Preferably, piston ring activity expansion clamping device places hole and anticreep piece including peripheral piece one of arc, the peripheral piece two of arc, articulated hinge, rectangular block, sliding block, piston ring tip, it is articulated through articulated hinge activity between the peripheral piece two of arc and the peripheral piece one of arc, the peripheral piece one of arc and the peripheral piece two surface all with rectangular block welded fastening, the distance is the millimeter between two rectangular blocks, the sliding block sets up the outside at the rectangular block, one side and the anticreep piece welded fastening that the rectangular block was kept away from to the sliding block, the one end that the anticreep piece was kept away from to the sliding block runs through inside rectangular block and the peripheral piece concave surface of arc extend to in the lump of arc, piston ring tip is placed the hole and is seted up in the one side that two sliding blocks kept away from.
Preferably, the first arc-shaped peripheral block and the second arc-shaped peripheral block have the same specification, and the first arc-shaped peripheral block and the second arc-shaped peripheral block are combined into a circular cylindrical object.
Preferably, the expansion adjusting device comprises a welding block, a stop block and an expansion adjusting bolt, the welding block is welded and fixed at the bottom of the arc-shaped peripheral block I, the stop block is welded and fixed at the bottom of the arc-shaped peripheral block II, the expansion adjusting bolt is arranged outside the welding block, the threaded end of the expansion adjusting bolt penetrates through the welding block and is in contact with the stop block, and the threaded end of the expansion adjusting bolt is in threaded connection with the welding block.
Preferably, the inner walls of the concave surfaces of the first arc-shaped peripheral block and the second arc-shaped peripheral block are positioned outside the piston and are respectively welded and fixed with the piston ring placing block, and one side, close to the piston, of the piston placing block is provided with a piston ring placing groove.
(III) advantageous effects
The invention provides a quick mounting device for an automobile piston ring. The method has the following beneficial effects:
1. the automobile piston ring quick mounting device has the advantages that the function of opening and closing movement can be achieved between the first arc-shaped peripheral block and the second arc-shaped peripheral block through the hinged hinge arranged between the first arc-shaped peripheral block and the second arc-shaped peripheral block, the piston ring can be placed in any one piston ring placing groove after the first arc-shaped peripheral block and the second arc-shaped peripheral block are opened, one end of the piston ring can be placed in the piston ring end placing hole, the other end of the piston ring can be close to the other piston ring end placing hole by pressing the other sliding block after the first arc-shaped peripheral block and the second arc-shaped peripheral block are closed, the moving distance between the welding block and the stop block can be adjusted by twisting and expanding the adjusting bolt, the distance between the welding block and the stop block can be increased by twisting and expanding the adjusting bolt, the first arc-shaped peripheral block and the second arc-shaped peripheral block can be expanded along the hinged hinge and drive the piston ring to, can directly install the piston ring in annular piston ring groove through placing the piston in the piston standing groove and adjusting the pine with expansion adjusting bolt, effectively made things convenient for the installation of piston ring.
2. This quick installation device of car piston ring, the piston ring that sets up through the inner wall setting of peripheral piece one of arc and peripheral piece two of arc places the piece and the piston ring standing groove set up highly the same with the level of the annular piston ring groove on the piston, can normally resume directly after former shape with the piston ring be connected with the annular piston ring groove on the piston, effectively improved the installation effectiveness of piston ring.
3. This quick installation device of car piston ring finishes the installation of piston ring back arc peripheral piece one and the peripheral piece two closures of arc, can place the hole with piston ring and piston ring tip and break away from the convenient piston of installing and take out through outwards pulling out the sliding block from the rectangle piece, and this installation comparatively safely can not cause the condition emergence of incising to the human body.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural view of the present invention;
FIG. 4 is a schematic structural view of the present invention;
FIG. 5 is a top view of the structure of the present invention;
FIG. 6 is a side view of the structure of the present invention;
FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6 in accordance with the present invention.
Wherein, 1 chassis, 2 supporting legs, 3 cylindricality are protruding, 4 piston ring activity expansion clamping device, 401 arc peripheral piece one, 402 arc peripheral piece two, 403 articulated hinge, 404 rectangle piece, 405 sliding block, 406 piston ring tip place the hole, 407 anticreep piece, 5 expansion adjusting device, 501 welding piece, 502 dog, 503 expansion adjusting bolt, 6 pistons, 7 annular piston ring grooves, 8 piston standing grooves, 9 piston ring placing blocks, 10 piston ring standing grooves.
Detailed Description
The invention is further described below with reference to the figures and examples.
The embodiment of the invention provides a quick installation device for an automobile piston ring, which comprises a chassis 1, wherein a supporting leg 2 is fixedly welded at the bottom of the chassis 1, a cylindrical protrusion 3 is fixedly connected at the top of the chassis 1, a piston ring movable expansion clamping device 4 is arranged above the chassis 1, an expansion adjusting device 5 is arranged on the piston ring movable expansion clamping device 4, a piston 6 is arranged inside the piston ring movable expansion clamping device 4, an annular piston ring groove 7 is formed in the outer surface of the piston 6, a piston placing groove 8 is formed in the top of the cylindrical protrusion 3, the piston 6 is placed inside the piston placing groove 8, the diameter of the piston 6 is 100mm, and a piston ring placing block 9 is arranged inside the piston ring movable expansion clamping device 4.
The piston ring movable expansion clamping device 4 comprises a first arc-shaped peripheral block 401, a second arc-shaped peripheral block 402, a hinge 403, a rectangular block 404, a sliding block 405, a piston ring end part placing hole 406 and an anti-falling block 407, wherein the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 are movably hinged through the hinge 403, the outer surfaces of the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 are fixedly welded with the rectangular block 404, the distance between the two rectangular blocks 404 is 2 mm, the sliding block 405 is arranged outside the rectangular block 404, one side of the sliding block 405 far away from the rectangular block 404 is fixedly welded with the anti-falling block 407, one end of the sliding block 405 far away from the anti-falling block 407 penetrates through the rectangular block 404 and the first arc-shaped peripheral block 401 and extends to the inner part of the concave surface of the first arc-shaped peripheral block 401, the piston ring end part placing hole 406 is arranged on one side far away, the piston ring and the piston ring end portion placing hole 406 can be separated from the installed piston 6 conveniently by pulling the sliding block 405 outwards from the rectangular block 404, the installation process is safe and does not cause cutting injury to a human body, the specifications of the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 are the same, the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 are combined into a circular cylindrical object, and the diameter of the inner ring is 120mm after the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 are closed.
The expansion adjusting device 5 comprises a welding block 501, a stop block 502 and an expansion adjusting bolt 503, the welding block 501 is fixedly welded at the bottom of a first arc-shaped peripheral block 401, the stop block 502 is fixedly welded at the bottom of a second arc-shaped peripheral block 402, the expansion adjusting bolt 503 is arranged outside the welding block 501, a threaded end of the expansion adjusting bolt 503 penetrates through the welding block 501 and is in contact with the stop block 502, the threaded end of the expansion adjusting bolt 503 is in threaded connection with the welding block 501, a hinged hinge 403 arranged between the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 can enable the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 to have an opening and closing movable function, after the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 are opened, a piston ring can be placed in any one piston ring placing groove 10, one end of the piston ring is placed in a piston ring end placing hole 406, after the first arc-shaped peripheral block 401 and the second arc-shaped One end is close to another piston ring tip and places hole 406, can make the live distance between welding piece 501 and the dog 502 adjust through twisting expansion adjusting bolt 503, it can be with the increase of the distance between welding piece 501 and the dog 502 to twist expansion adjusting bolt 503 tightly, the increase of the distance between welding piece 501 and the dog 502 can make peripheral piece 401 of arc and peripheral piece two 402 of arc expand the operation and drive the piston ring and expand along articulated hinge 403, through placing piston 6 in piston standing groove 8 and will expand adjusting bolt 503 and transfer the pine and can directly install the piston ring in annular piston ring groove 7, the installation of piston ring has effectively been made things convenient for.
The inner wall of the concave surface of the arc-shaped peripheral block I401 and the arc-shaped peripheral block II 402 is positioned outside the piston 6 and is welded and fixed with the piston ring placing block 9 respectively, one side of the piston placing block 9, which is close to the piston 6, is provided with a piston ring placing groove 10, the piston ring placing groove 10 is provided with a water body height which is the same as the horizontal height of the annular piston ring groove 7 on the piston 6, the piston ring placing block 9 and the piston ring placing groove 10 are provided with the same horizontal height as the annular piston ring groove 7 on the piston 6 through the inner wall of the arc-shaped peripheral block I401 and the arc-shaped peripheral block II 402, the piston ring can be directly connected with the annular piston ring groove 7 on the piston 6 after the normal recovery of.
The working principle is as follows: when the piston ring expanding device is used, after the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 are opened, a piston ring can be placed in any one piston ring placing groove 10, one end of the piston ring is placed in the piston ring end placing hole 406, after the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 are closed, the other end of the piston ring can be close to the other piston ring end placing hole 406 by pressing the other sliding block 405, the movable distance between the welding block 501 and the stop block 502 can be adjusted by twisting and expanding the adjusting bolt 503, the distance between the welding block 501 and the stop block 502 can be increased by twisting and expanding the adjusting bolt 503, the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 can be expanded along the hinged hinge and drive the piston ring to be expanded, at the moment, the piston 6 is placed in the piston placing groove 8, the piston ring placing block 9 is arranged on the inner walls of the first arc-shaped peripheral block 401 and the second arc-shaped peripheral block 402 The setting height of the ring placement groove 10 is the same as the horizontal height of the ring-shaped piston ring groove 7 on the piston 6, the piston ring can be directly installed in the ring-shaped piston ring groove 7 by placing the piston in the piston placement groove 8 and loosening the expansion adjusting bolt 503, and the piston ring can be directly connected with the ring-shaped piston ring groove 7 on the piston 6 after normally recovering the original shape.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A quick installation device for an automobile piston ring and a using method thereof comprise a chassis (1), the bottom of the chassis (1) is welded and fixed with a supporting leg (2), the top of the chassis (1) is fixedly connected with a cylindrical bulge (3), a piston ring movable expansion clamping device (4) is arranged above the chassis (1), an expansion adjusting device (5) is arranged on the piston ring movable expansion clamping device (4), a piston (6) is arranged in the piston ring movable expansion clamping device (4), the outer surface of the piston (6) is provided with an annular piston ring groove (7), the top of the cylindrical bulge (3) is provided with a piston placing groove (8), the piston (6) is placed in the piston placing groove (8), and a piston ring placing block (9) is arranged in the piston ring movable expansion clamping device (4); a piston ring placing groove (10) is formed in one side, close to the piston (6), of the piston placing block (9);
the method is characterized in that: the piston ring movable expansion clamping device (4) comprises a first arc-shaped peripheral block (401), a second arc-shaped peripheral block (402), a hinge (403), a rectangular block (404), a sliding block (405), a piston ring end placing hole (406) and an anti-falling block (407), wherein the first arc-shaped peripheral block (401) and the second arc-shaped peripheral block (402) are movably hinged through the hinge (403), the outer surfaces of the first arc-shaped peripheral block (401) and the second arc-shaped peripheral block (402) are fixedly welded with the rectangular block (404), the distance between the two rectangular blocks (404) is 2 mm, the sliding block (405) is arranged outside the rectangular block (404), one side, far away from the rectangular block (404), of the sliding block (405) is fixedly welded with the anti-falling block (407), one end, far away from the anti-falling block (407), of the sliding block (405) penetrates through the rectangular block (404) and the first arc-shaped peripheral block (401) and extends to the concave surface of the first arc-shaped peripheral, the piston ring end placing hole (406) is formed in one side, away from each other, of each of the two sliding blocks (405), the first arc-shaped peripheral block (401) and the second arc-shaped peripheral block (402) are identical in specification, the first arc-shaped peripheral block (401) and the second arc-shaped peripheral block (402) are combined into a circular cylindrical object, the inner walls of the concave surfaces of the first arc-shaped peripheral block (401) and the second arc-shaped peripheral block (402) are located outside the piston (6) and are respectively welded and fixed with the piston ring placing block (9), the expansion adjusting device (5) comprises a welding block (501), a stop block (502) and an expansion adjusting bolt (503), the welding block (501) is welded and fixed at the bottom of the first arc-shaped peripheral block (401), the stop block (502) is welded and fixed at the bottom of the second arc-shaped peripheral block (402), the expansion adjusting bolt (503) is arranged outside the welding block (501), and the threaded end of the expansion adjusting bolt (503) penetrates through the welding block (501) and, the threaded end of the expansion adjusting bolt (503) is in threaded connection with the welding block (501);
when the piston ring expanding device is used, after the first arc-shaped peripheral block (401) and the second arc-shaped peripheral block (402) are opened, a piston ring can be placed in any one piston ring placing groove (10), one end part of the piston ring is placed in a piston ring end part placing hole (406), after the first arc-shaped peripheral block (401) and the second arc-shaped peripheral block (402) are closed, the other end of the piston ring can be close to the other piston ring end part placing hole (406) by pressing the other sliding block (405), the movable distance between the welding block (501) and the stop block (502) can be adjusted by twisting and expanding the adjusting bolt (503), the distance between the welding block (501) and the stop block (502) can be increased by twisting and expanding the adjusting bolt (503), the first arc-shaped peripheral block (401) and the second arc-shaped peripheral block (402) can be expanded along the hinged hinge (403) and drive the piston ring to expand, at the moment, the piston (6) is placed in the piston placing groove (8), the piston ring placing block (9) arranged through the inner walls of the arc-shaped peripheral block I (401) and the arc-shaped peripheral block II (402) and the setting height of the piston ring placing groove (10) are the same as the horizontal height of the annular piston ring groove (7) on the piston (6), the piston ring can be directly installed in the annular piston ring groove (7) by placing the piston in the piston placing groove (8) and loosening the expansion adjusting bolt (503), and the piston ring can be directly connected with the annular piston ring groove (7) on the piston (6) after being normally restored to the original shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110035102.7A CN112873126A (en) | 2019-07-20 | 2019-07-20 | Rapid installation device for automobile piston ring and use method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910657929.4A CN110303454B (en) | 2019-07-20 | 2019-07-20 | Quick installation device of car piston ring |
| CN202110035102.7A CN112873126A (en) | 2019-07-20 | 2019-07-20 | Rapid installation device for automobile piston ring and use method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910657929.4A Division CN110303454B (en) | 2019-07-20 | 2019-07-20 | Quick installation device of car piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112873126A true CN112873126A (en) | 2021-06-01 |
Family
ID=68081049
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910657929.4A Active CN110303454B (en) | 2019-07-20 | 2019-07-20 | Quick installation device of car piston ring |
| CN202110035102.7A Pending CN112873126A (en) | 2019-07-20 | 2019-07-20 | Rapid installation device for automobile piston ring and use method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910657929.4A Active CN110303454B (en) | 2019-07-20 | 2019-07-20 | Quick installation device of car piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110303454B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110303454B (en) * | 2019-07-20 | 2021-04-09 | 胡彩云 | Quick installation device of car piston ring |
| CN110714211A (en) * | 2019-11-18 | 2020-01-21 | 浙江道明光电科技有限公司 | Device and method for manufacturing working die belt with micro pyramid array structure |
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|---|---|---|---|---|
| GB312019A (en) * | 1928-06-12 | 1929-05-23 | Adolf Leutwyler | Improvements in a device for introducing pistons fitted with piston rings into cylinders |
| US1755294A (en) * | 1928-10-17 | 1930-04-22 | Grover Ray | Piston-ring clamp |
| CN107175620A (en) * | 2017-06-08 | 2017-09-19 | 安徽江淮纳威司达柴油发动机有限公司 | A kind of piston ring installs accessory |
| CN107378862A (en) * | 2017-08-23 | 2017-11-24 | 南京工业职业技术学院 | A kind of three-pawl type piston ring tongs |
| CN110303454B (en) * | 2019-07-20 | 2021-04-09 | 胡彩云 | Quick installation device of car piston ring |
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| CH125537A (en) * | 1928-06-12 | 1928-04-16 | Ad Leutwyler | Device for inserting pistons with piston rings into the cylinder. |
| US1745374A (en) * | 1928-06-12 | 1930-02-04 | Leutwyler Adolf | Device for introducing pistons fitted with piston rings into cylinders |
| JPS63196328A (en) * | 1987-02-06 | 1988-08-15 | Honda Motor Co Ltd | Spacer ring fitting device for oil ring group in oil ring groove of piston |
| CN1063532C (en) * | 1994-10-24 | 2001-03-21 | 卢卡斯工业有限公司 | Securing ring, device for fitting it and method for fitting it |
| DE19912166C2 (en) * | 1999-03-18 | 2001-05-31 | Federal Mogul Burscheid Gmbh | Assembly tool for assembling pistons with radially outward-tensioning piston rings in cylinders |
| JP2005307811A (en) * | 2004-04-20 | 2005-11-04 | Nippon Container Terminal Kk | Piston insertion auxiliary device |
| CN202137573U (en) * | 2011-06-20 | 2012-02-08 | 宁波以赛亚汽车空压机有限公司 | Special mounting equipment for piston ring |
| CN204807025U (en) * | 2015-07-23 | 2015-11-25 | 广西防城港核电有限公司 | Piston ring installation clearance measuring tool |
| CN206998729U (en) * | 2017-06-26 | 2018-02-13 | 江苏上淮动力有限公司 | Piston ring clamp |
| CN108903144B (en) * | 2018-07-06 | 2020-04-03 | 台州市金算子知识产权服务有限公司 | Key ring opening device |
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2019
- 2019-07-20 CN CN201910657929.4A patent/CN110303454B/en active Active
- 2019-07-20 CN CN202110035102.7A patent/CN112873126A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB312019A (en) * | 1928-06-12 | 1929-05-23 | Adolf Leutwyler | Improvements in a device for introducing pistons fitted with piston rings into cylinders |
| US1755294A (en) * | 1928-10-17 | 1930-04-22 | Grover Ray | Piston-ring clamp |
| CN107175620A (en) * | 2017-06-08 | 2017-09-19 | 安徽江淮纳威司达柴油发动机有限公司 | A kind of piston ring installs accessory |
| CN107378862A (en) * | 2017-08-23 | 2017-11-24 | 南京工业职业技术学院 | A kind of three-pawl type piston ring tongs |
| CN110303454B (en) * | 2019-07-20 | 2021-04-09 | 胡彩云 | Quick installation device of car piston ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110303454B (en) | 2021-04-09 |
| CN110303454A (en) | 2019-10-08 |
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Application publication date: 20210601 |
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