CN107378862A - A kind of three-pawl type piston ring tongs - Google Patents
A kind of three-pawl type piston ring tongs Download PDFInfo
- Publication number
- CN107378862A CN107378862A CN201710734359.5A CN201710734359A CN107378862A CN 107378862 A CN107378862 A CN 107378862A CN 201710734359 A CN201710734359 A CN 201710734359A CN 107378862 A CN107378862 A CN 107378862A
- Authority
- CN
- China
- Prior art keywords
- piston ring
- supporting rod
- telescopic supporting
- tong arm
- jaw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 210000000080 chela (arthropods) Anatomy 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a kind of three-pawl type piston ring tongs, including be hinged left and right tong arm, with the Telescopic supporting rod of tong arm articulated section rotation connection, be set in the support arm being slidably matched on Telescopic supporting rod with Telescopic supporting rod, be set in one end and Telescopic supporting rod on Telescopic supporting rod and be connected, tension spring that the other end is connected with support arm, be arranged on support jaw of the support arm end for clamping piston ring；Wherein, each tong arm is formed by handle portion, connecting portion and clamping part, and the clamping part end is provided with the spacing jaw of fixed piston ring end face, and the spacing jaw and support jaw are generally aligned in the same plane.The present invention carries out three-point fix using three jaws to piston ring, and solves expansion problem by Telescopic supporting rod and tension spring, realize that support arm adjust automatically adapts to the size of piston ring to meet the dismounting demand of different size piston rings, disassembly process is convenient and reliable, is dismounted suitable for the piston ring of extensive size.
Description
Technical field
The invention belongs to engine maintenance field of tool, and in particular to a kind of three-pawl type piston ring tongs.
Background technology
Piston ring is a kind of core component for having the larger metallic elastic ring for expanding outwardly deformation, being engine interior,
It and cylinder, piston, cylinder wall etc. complete the sealing of fuel oil-gas together.
At present during engine maintenance, the replacing installation of piston ring is single-handedly operated mostly, is installed inadequate specification, is held
Easily cause machinery damage or personal injury.Mostly it is the peace that some are fixed although also there being some piston ring erecting devices
Assembling device, being only applicable to the installation of factory is inconvenient to carry, and presence can not realize the defects of removing of piston ring.In addition
There are some piston ring tongs, but these ring expanders have a definite limitation to the size of piston ring.If invention one kind can
Three-point fix, the dismounting pincers for adapting to different size piston rings, so not only reduce work difficulty, and be favorably improved work effect
Rate.
The content of the invention
It is an object of the invention to provide a kind of three-point fix for solving dismounting pincers to piston ring and expansion problem, branch is realized
Brace adjust automatically is to dismount the three-pawl type piston ring tongs of different size piston rings.
The technical solution for realizing the object of the invention is：A kind of three-pawl type piston ring tongs, including be hinged a left side,
Right clamp arm, the Telescopic supporting rod being rotatablely connected with tong arm articulated section, it is set on Telescopic supporting rod and Telescopic supporting rod
The support arm that is slidably matched, it is set in one end and Telescopic supporting rod on Telescopic supporting rod and is connected, the other end is consolidated with support arm
Tension spring even, it is arranged on the support jaw that support arm end is used for clamping piston ring；Wherein, each tong arm is by handle
Hand, connecting portion and clamping part composition, the clamping part end are provided with the spacing jaw of fixed piston ring end face, the spacing pincers
Mouth and support jaw are generally aligned in the same plane.
Handle portion, connecting portion and the Telescopic supporting rod of the tong arm are generally aligned in the same plane, the support arm and tong arm
Clamping part is vertically arranged with above-mentioned plane.
The Telescopic supporting rod is located between the handle portion of left and right tong arm.
Tong arm return spring is provided between the connecting portion of the left and right tong arm.
The spacing jaw is plough groove type, and trench section is trapezoidal；The support jaw is arc-shaped groove formula, and groove breaks
Face is V-arrangement.
Plastic protective sleeve is arranged with the handle portion.
Compared with prior art, its remarkable advantage is the present invention：
A kind of three-pawl type piston ring tongs of the present invention, simple in construction, easy to assembly, production cost is relatively low, utilizes three
Jaw carries out three-point fix to piston ring, and solves expansion problem by Telescopic supporting rod and tension spring, realizes support arm
Adjust automatically adapts to the size of piston ring to meet the dismounting demand of different size piston rings, and disassembly process is convenient and reliable, is applicable
Dismounted in the piston ring of extensive size.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is Telescopic supporting rod structural representation in the present invention；
Fig. 3 is the structural representation of tong arm and support arm in the present invention；
Fig. 4 is jaw mplifying structure schematic diagram in the present invention.
In figure：1- Telescopic supporting rods, 2- handle portions, 3- connecting portions, 4- clamping parts, 5- support arms, the spacing jaws of 6-, 7-
Support jaw, 8- tension springs, 9- tong arm return springs, 10- positioning cylinders.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
With reference to Fig. 1-4, a kind of three-pawl type piston ring tongs of the present invention, all building blocks can be entered using metal material
Row processing.Dismounting pincers include left and right tong arm, the Telescopic supporting rod 1 with the rotation connection of tong arm articulated section being hinged, specifically
, left and right tong arm and Telescopic supporting rod 1 is hinged by positioning cylinder 10, and three can surround positioning cylinder 10 freely
Rotate, Telescopic supporting rod can rotate around positioning cylinder 10 in two tong arm angles.
Each tong arm is integrally formed by handle portion 2, connecting portion 3 and clamping part 4, and Telescopic supporting rod 1 is positioned at a left side
Between the handle portion 2 of right clamp arm, (i.e. handle portion 2 and the junction of connecting portion 3) is provided with corresponding through positioning cylinder 10 in the middle part of tong arm
Through hole, be provided with tong arm return spring 9 between the connecting portion 3 of left and right tong arm, the end of clamping part 4 is provided with fixed piston ring
The spacing jaw 6 of end face, in standing shape, the spacing jaw 6 is plough groove type, and trench section is trapezoidal, is easy to contact and fixed
Piston ring end face.
Further, the handle portion 2 of the tong arm, connecting portion 3 and Telescopic supporting rod 1 are generally aligned in the same plane, the branch
The clamping part 4 of brace 5 and tong arm is vertically arranged with above-mentioned plane.Under relaxation state, tong arm handle portion 2 opens, and connecting portion 3 closes
Close；When being operated to the force of tong arm handle portion 2, tong arm handle portion 2 is close, and connecting portion 3, clamping part 4 strut.In order that use process
In, it is easy to exert a force, prevents that hand is injured, plastic protective sleeve is arranged with the handle portion 2.
The support arm 5 of vertical support bar 1 is arranged with the Telescopic supporting rod 1, with reference to Fig. 2, Telescopic supporting rod 1
One end is the circular hole of corresponding positioning cylinder 10, and the other end is provided with the projection of the limitation slide displacement of support arm 5.The end of support arm 5 is set
There is a support jaw 7 for clamping piston ring, the support jaw 7 is arc-shaped groove formula, and trench section is V-arrangement, in groove
It is machined with netted striped, frictional force when increase contacts.The spacing jaw 6 and support jaw 7 are generally aligned in the same plane.The drawing
Power spring 8 is set on Telescopic supporting rod 1, and one end of tension spring 8 and Telescopic supporting rod 1 are close to positioning cylinder 10
End is connected, and the other end is connected with support arm 5.During relaxation state, support bar 1 is retracted by tension spring 8, when piston ring diameter compared with
When big, Telescopic supporting rod 1 can be extended manually, tension spring 8 provides certain pulling force, and thus, support arm 5 is in tension spring
It can be slidably reciprocated in the presence of 8 on Telescopic supporting rod 1, to be dismounted suitable for various sizes of piston ring, according to piston ring
The position of size regulation support jaw 7, ensures support jaw 7 by ring sticking.
In use, two end faces of piston ring collar extension are correspondingly placed on the spacing jaw 6 on the top of tong arm clamping part 4
Interior, the middle part of piston ring is stuck in the support jaw 7 of support arm 5, and piston ring is by three of three-pawl type piston ring tongs
Jaw is fixed, and by applying strength on tong arm handle portion 2, piston ring opens in the case where tong arm connecting portion 3, clamping part 4 drive, living
The diameter of plug ring becomes big, and then can dismounts to piston ring.The support arm 5 of Telescopic supporting rod 1 rises in disassembly process
Supporting role, after dismounting, loosen handle portion 2, piston ring tongs rely on the power return of return spring 9, and piston ring can recover
Free state.
The foregoing is only a preferred embodiment of the present invention, but this should not be interpreted as to the above-mentioned theme of the present invention
Scope be only limitted to the embodiment of the above, it is all that the scope of the present invention is belonged to based on the technology that present invention is realized.
Claims (6)
- A kind of 1. three-pawl type piston ring tongs, it is characterised in that：Including be hinged left and right tong arm,With tong arm articulated section rotation connection Telescopic supporting rod (1),Be set in be slidably matched on Telescopic supporting rod (1) with Telescopic supporting rod (1) support arm (5),It is set in one end on Telescopic supporting rod (1) to be connected with Telescopic supporting rod (1), the other end is connected with support arm (5) Tension spring (8),It is arranged on the support jaw (7) that support arm (5) end is used for clamping piston ring；Wherein, each tong arm forms by handle portion (2), connecting portion (3) and clamping part (4), clamping part (4) end Spacing jaw (6) provided with fixed piston ring end face, the spacing jaw (6) and support jaw (7) are generally aligned in the same plane.
- A kind of 2. three-pawl type piston ring tongs according to claim 1, it is characterised in that：The handle portion of the tong arm (2), connecting portion (3) and Telescopic supporting rod (1) are generally aligned in the same plane, the clamping part (4) of the support arm (5) and tong arm with it is upper Plane is stated to be vertically arranged.
- A kind of 3. three-pawl type piston ring tongs according to claim 1, it is characterised in that：The Telescopic supporting rod (1) between the handle portion (2) of left and right tong arm.
- A kind of 4. three-pawl type piston ring tongs according to claim 1, it is characterised in that：The company of the left and right tong arm Tong arm return spring (9) is provided between socket part (3).
- A kind of 5. three-pawl type piston ring tongs according to claim 1, it is characterised in that：The spacing jaw (6) is Plough groove type, trench section are trapezoidal；The support jaw (7) is arc-shaped groove formula, and trench section is V-arrangement.
- A kind of 6. three-pawl type piston ring tongs according to claim 1, it is characterised in that：Covered on the handle portion (2) Provided with plastic protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734359.5A CN107378862A (en) | 2017-08-23 | 2017-08-23 | A kind of three-pawl type piston ring tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710734359.5A CN107378862A (en) | 2017-08-23 | 2017-08-23 | A kind of three-pawl type piston ring tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107378862A true CN107378862A (en) | 2017-11-24 |
Family
ID=60345687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710734359.5A Pending CN107378862A (en) | 2017-08-23 | 2017-08-23 | A kind of three-pawl type piston ring tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107378862A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936318A (en) * | 2019-12-02 | 2020-03-31 | 中国第一汽车股份有限公司 | Derailleur axle head jump ring erecting tool |
| CN112873126A (en) * | 2019-07-20 | 2021-06-01 | 单春旺 | Rapid installation device for automobile piston ring and use method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2663875A1 (en) * | 1990-07-02 | 1992-01-03 | Mecanique Energetique | Apparatus for fitting and removing springs engaged in a blind housing |
| CN2368532Y (en) * | 1999-04-06 | 2000-03-15 | 陈玉泽 | Rectal dilator |
| CN202825608U (en) * | 2012-10-11 | 2013-03-27 | 宁波三泰轴承有限公司 | Rotating pliers |
| CN203109895U (en) * | 2013-03-29 | 2013-08-07 | 重庆电子工程职业学院 | Dismounting pincers for piston rings |
| CN204700839U (en) * | 2015-05-29 | 2015-10-14 | 江苏农林职业技术学院 | A kind of engine air valve locking plate dismounting pincers |
| CN204748513U (en) * | 2015-06-24 | 2015-11-11 | 常州市宏纳工具有限公司 | Novel piston ring dismouting pincers |
| CN207858746U (en) * | 2017-08-23 | 2018-09-14 | 南京工业职业技术学院 | A kind of three-pawl type piston ring tongs |
-
2017
- 2017-08-23 CN CN201710734359.5A patent/CN107378862A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2663875A1 (en) * | 1990-07-02 | 1992-01-03 | Mecanique Energetique | Apparatus for fitting and removing springs engaged in a blind housing |
| CN2368532Y (en) * | 1999-04-06 | 2000-03-15 | 陈玉泽 | Rectal dilator |
| CN202825608U (en) * | 2012-10-11 | 2013-03-27 | 宁波三泰轴承有限公司 | Rotating pliers |
| CN203109895U (en) * | 2013-03-29 | 2013-08-07 | 重庆电子工程职业学院 | Dismounting pincers for piston rings |
| CN204700839U (en) * | 2015-05-29 | 2015-10-14 | 江苏农林职业技术学院 | A kind of engine air valve locking plate dismounting pincers |
| CN204748513U (en) * | 2015-06-24 | 2015-11-11 | 常州市宏纳工具有限公司 | Novel piston ring dismouting pincers |
| CN207858746U (en) * | 2017-08-23 | 2018-09-14 | 南京工业职业技术学院 | A kind of three-pawl type piston ring tongs |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873126A (en) * | 2019-07-20 | 2021-06-01 | 单春旺 | Rapid installation device for automobile piston ring and use method |
| CN110936318A (en) * | 2019-12-02 | 2020-03-31 | 中国第一汽车股份有限公司 | Derailleur axle head jump ring erecting tool |
| CN110936318B (en) * | 2019-12-02 | 2021-08-13 | 中国第一汽车股份有限公司 | Derailleur axle head jump ring erecting tool |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |
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| RJ01 | Rejection of invention patent application after publication |