CN208845708U - A kind of piston with limit hole - Google Patents
A kind of piston with limit hole Download PDFInfo
- Publication number
- CN208845708U CN208845708U CN201821607284.0U CN201821607284U CN208845708U CN 208845708 U CN208845708 U CN 208845708U CN 201821607284 U CN201821607284 U CN 201821607284U CN 208845708 U CN208845708 U CN 208845708U
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- CN
- China
- Prior art keywords
- hole
- pin
- limit hole
- piston
- limit
- 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.)
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Abstract
The utility model discloses a kind of pistons with limit hole, it includes piston body, the both ends of piston body pin hole seat be respectively equipped with axially through pin hole, one end of pin hole seat is equipped with and penetrates through from bottom to the first limit hole of pin hole, the top of pin hole is equipped with the second limit hole being coaxially disposed with the first limit hole, when piston pin is sheathed in pin hole, banking pin sequentially passes through the first limit hole, the through-hole on piston pin and the second limit hole.Using the above structure, by the first limit hole and the second limit hole that coaxial arrangement is arranged on pin hole, when piston pin is set on pin hole, first limit hole, through-hole and the second limit hole on piston pin are sequentially passed through using banking pin, to realize the axial limiting to piston pin, production cost can be not only reduced, while assembly efficiency can also be improved.
Description
Technical field
The utility model relates to piston field more particularly to a kind of pistons with limit hole.
Background technique
In the prior art, baffle ring slot is respectively set on the both ends pin hole of piston, a gear is installed respectively in two baffle ring slots
Lock ring limits the axial float of piston pin, and this infrastructure cost is relatively high.
Summary of the invention
The purpose of this utility model is to provide a kind of at low cost, pistons with limit hole.
To achieve the above object, the utility model uses following technical scheme:
A kind of piston with limit hole, including piston body, the both ends of piston body pin hole seat be respectively equipped with axially through pin
Hole, one end of pin hole seat are equipped with from bottom and penetrate through to the first limit hole of pin hole, and the top of pin hole is equipped with and the first limit hole
Second limit hole of coaxial arrangement, when piston pin is sheathed in pin hole, banking pin sequentially passes through the first limit hole, on piston pin
Through-hole and the second limit hole.
Second limit hole is stepped hole, and the big stomidium of stepped hole is towards pin hole.
The big end bore dia of the stepped hole is identical as the diameter of the first limit hole.
The big end bore dia of the stepped hole is 0.5-1mm bigger than the diameter of small stomidium.
The utility model uses above technical scheme, has the advantages that by the way that coaxial arrangement is arranged on pin hole
The first limit hole and the second limit hole, when piston pin is set on pin hole, the first limit hole, work are sequentially passed through using banking pin
Through-hole and the second limit hole on plug pin can not only reduce production cost, simultaneously to realize to the axial limiting of piston pin
Assembly efficiency can also be improved.
Detailed description of the invention
The utility model is described in further details below in conjunction with the drawings and specific embodiments:
Fig. 1 is a kind of schematic diagram of the piston with limit hole of the utility model.
Specific embodiment
As shown in Figure 1, the utility model includes piston body 1, the both ends of 1 pin hole seat 2 of piston body be respectively equipped with axially through
Pin hole 3, one end of pin hole seat 2 is equipped with from bottom and penetrates through to the first limit hole 4 of pin hole 3, and the top of pin hole 3 is equipped with and the
Second limit hole 5 of one limit hole 4 coaxial arrangement, when piston pin is sheathed in pin hole 3, banking pin sequentially passes through the first limit hole
4, the through-hole on piston pin and the second limit hole 5.
Second limit hole 5 is stepped hole, and the big stomidium of stepped hole is towards pin hole 3.In addition, the big stomidium of stepped hole
Diameter is identical as the diameter of the first limit hole 4, specifically, the big end bore dia of stepped hole is 0.5-1mm bigger than the diameter of small stomidium.
The purpose of said structure design is to improve the assembly efficiency of banking pin.
The utility model on pin hole 3 by being arranged the first limit hole 4 and the second limit hole 5 of coaxial arrangement, piston pin
When being set on pin hole 3, the first limit hole 4, through-hole and the second limit hole 5 on piston pin are sequentially passed through using banking pin, from
And realize the axial limiting to piston pin, relatively existing there are two the technical solution of retaining ring, cost is lower, and assembly efficiency is also higher.
Claims (4)
1. a kind of piston with limit hole, including piston body, the both ends of piston body pin hole seat be respectively equipped with axially through pin hole,
It penetrates through it is characterized by: one end of pin hole seat is equipped with from bottom to the first limit hole of pin hole, the top of pin hole is equipped with and the
Second limit hole of one limit hole coaxial arrangement, when piston pin is sheathed in pin hole, banking pin sequentially passes through the first limit hole, work
Through-hole and the second limit hole on plug pin.
2. a kind of piston with limit hole according to claim 1, it is characterised in that: second limit hole is ladder
Hole, and the big stomidium of stepped hole is towards pin hole.
3. a kind of piston with limit hole according to claim 2, it is characterised in that: the big end bore dia of the stepped hole
It is identical as the diameter of the first limit hole.
4. a kind of piston with limit hole according to claim 2, it is characterised in that: the big end bore dia of the stepped hole
It is 0.5-1mm bigger than the diameter of small stomidium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821607284.0U CN208845708U (en) | 2018-09-29 | 2018-09-29 | A kind of piston with limit hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821607284.0U CN208845708U (en) | 2018-09-29 | 2018-09-29 | A kind of piston with limit hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208845708U true CN208845708U (en) | 2019-05-10 |
Family
ID=66373984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821607284.0U Active CN208845708U (en) | 2018-09-29 | 2018-09-29 | A kind of piston with limit hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208845708U (en) |
-
2018
- 2018-09-29 CN CN201821607284.0U patent/CN208845708U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220129 Address after: 350000 No. 3 comprehensive office building, No. 8, business Avenue, Nantong town, Minhou County, Fuzhou City, Fujian Province Patentee after: Fujian Huawei Juquan Precision Technology Co.,Ltd. Address before: 350000 Fujian Province, Jinan District of Fuzhou City Drum Shan Fuxing Investment Zone Patentee before: Fuzhou Juquan Automobile Fitting Co.,Ltd. |
|
| TR01 | Transfer of patent right |