CN203161713U - Hydraulic cylinder for improving sealing performance of pistons - Google Patents
Hydraulic cylinder for improving sealing performance of pistons Download PDFInfo
- Publication number
- CN203161713U CN203161713U CN 201320194073 CN201320194073U CN203161713U CN 203161713 U CN203161713 U CN 203161713U CN 201320194073 CN201320194073 CN 201320194073 CN 201320194073 U CN201320194073 U CN 201320194073U CN 203161713 U CN203161713 U CN 203161713U
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- cylinder
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Abstract
A hydraulic cylinder for improving sealing performance of pistons comprises a cylinder body; pistons and piston rods are arranged inside the cylinder body; the pistons and the piston rods are fixedly connected; the piston rods are connected with the cylinder body in a sliding mode through guide sleeves; the two ends of the cylinder body are respectively provided with a cylinder head and a cylinder seat; the cylinder head is fixedly connected with one ends of the piston rods; the cylinder seat is fixedly connected with the cylinder body; the pistons are closely connected with the cylinder body through supporting rings which are arranged in a parallel mode; glyd rings and Y-shaped oil seal are arranged between the pistons and the cylinder body; and the glyd rings and the Y-shaped oil seal are arranged between the pair of supporting rings which are arranged in a parallel mode. Compared with the traditional combination sealing ring, the sealing performance between the cylinder body and the pistons is improved, the problem that the hydraulic oil permeates into a rodless chamber is avoided, accordingly the whole performance of the hydraulic cylinder is improved due to the fact that the glyd rings and the Y-shaped oil seal are arranged between the pistons and the cylinder body and the production cost is reduced due to the fact that the production cost of the glyd rings and the Y-shaped oil seal is lower than that of the combination sealing ring.
Description
Technical field
The utility model relates to a kind of hydraulic jack, especially a kind of hydraulic jack that improves piston seal.
Background technique
At present, existing hydraulic jack is made up of cylinder body, piston, piston rod, guide sleeve and the cylinder head and the cylinder seat that are separately positioned on the cylinder body two ends; Described piston closely is connected with cylinder body with combined sealing ring by a plurality of support rings.Hydraulic jack is when high-intensity working state, and the sealing between piston and cylinder body only be difficult to prevent that by combination seal hydraulic oil from infiltrating in the rodless cavity, thereby reduced the overall performance of hydraulic jack, and the cost of production of combination seal is than higher.
Summary of the invention
The utility model provides a kind of hydraulic jack that improves piston seal, has solved hydraulic oil effectively and has infiltrated the interior problem of rodless cavity, and reduced the cost of production of hydraulic jack.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows: a kind of hydraulic jack that improves piston seal, comprise cylinder body, be provided with piston and piston rod in the cylinder body, piston is fixedlyed connected with piston rod, and piston rod is slidingly connected by guide sleeve and cylinder body, and the cylinder body two ends are respectively equipped with cylinder head and cylinder seat, cylinder head is fixedlyed connected with an end of piston rod, and the cylinder seat is fixedlyed connected with cylinder body; Described piston closely is connected with cylinder body by the support ring of parallel distribution, it is characterized in that: also be provided with Glais ring and Y type oil sealing between piston and the cylinder body, Glais ring and Y type oil sealing are between the support ring of pair of parallel.
Beneficial effect: the Glais ring that the utility model is set up between piston and cylinder body is compared with traditional combined sealing ring with Y type oil sealing, improved the sealing between cylinder body and the piston, prevented that hydraulic oil from infiltrating the problem in the rodless cavity, thereby improved the overall performance of hydraulic jack; Because Glais ring and Y type oil sealing are lower than the cost of production of combined sealing ring, thereby reduced cost of production.The utility model is simple in structure, and cost of production is low, and using effect is good.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the local enlarged diagram of A among Fig. 1.
1 is cylinder body among the figure, the 2nd, and piston, the 3rd, piston rod, the 4th, guide sleeve, the 5th, cylinder head, the 6th, cylinder seat, the 7th, support ring, the 8th, Glais ring, the 9th, Y type oil sealing.
Embodiment
Shown in Fig. 1 and 2, a kind of hydraulic jack that improves piston seal, comprise cylinder body 1, be provided with piston 2 and piston rod 3 in the cylinder body 1, piston 2 is fixedlyed connected with piston rod 3, and piston rod 3 is slidingly connected by guide sleeve 4 and cylinder body 1, and cylinder body 1 two ends are respectively equipped with cylinder head 5 and cylinder seat 6, cylinder head 5 is fixedlyed connected with an end of piston rod 3, and cylinder seat 6 is fixedlyed connected with cylinder body 1; Described piston 2 closely is connected with cylinder body 1 by the support ring 7 of parallel distribution, also is provided with Glais ring 8 and Y type oil sealing between piston 2 and the cylinder body 1, and Glais ring 8 and Y type oil sealing 9 are between the support ring 7 of pair of parallel.
Claims (1)
1. hydraulic jack that improves piston seal, comprise cylinder body, be provided with piston and piston rod in the cylinder body, piston is fixedlyed connected with piston rod, piston rod is slidingly connected by guide sleeve and cylinder body, the cylinder body two ends are respectively equipped with cylinder head and cylinder seat, and cylinder head is fixedlyed connected with an end of piston rod, and the cylinder seat is fixedlyed connected with cylinder body; Described piston closely is connected with cylinder body by the support ring of parallel distribution, it is characterized in that: also be provided with Glais ring and Y type oil sealing between piston and the cylinder body, Glais ring and Y type oil sealing are between the support ring of pair of parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194073 CN203161713U (en) | 2013-04-17 | 2013-04-17 | Hydraulic cylinder for improving sealing performance of pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194073 CN203161713U (en) | 2013-04-17 | 2013-04-17 | Hydraulic cylinder for improving sealing performance of pistons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161713U true CN203161713U (en) | 2013-08-28 |
Family
ID=49022900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320194073 Expired - Lifetime CN203161713U (en) | 2013-04-17 | 2013-04-17 | Hydraulic cylinder for improving sealing performance of pistons |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161713U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106064797A (en) * | 2016-04-14 | 2016-11-02 | 衡阳市锦泰工具有限公司 | The sealing structure of hydraulic jack piston |
| CN106698241A (en) * | 2015-11-13 | 2017-05-24 | 衡阳市锦泰工具有限公司 | Hydraulic jack piston and upper cover sealing structures |
| CN106698237A (en) * | 2015-11-13 | 2017-05-24 | 衡阳市锦泰工具有限公司 | Piston sealing structure of hydraulic jack |
| CN107756744A (en) * | 2016-08-22 | 2018-03-06 | 上海光塑机械制造有限公司 | A kind of motor fixes single cylinder injection mechanism |
-
2013
- 2013-04-17 CN CN 201320194073 patent/CN203161713U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698241A (en) * | 2015-11-13 | 2017-05-24 | 衡阳市锦泰工具有限公司 | Hydraulic jack piston and upper cover sealing structures |
| CN106698237A (en) * | 2015-11-13 | 2017-05-24 | 衡阳市锦泰工具有限公司 | Piston sealing structure of hydraulic jack |
| CN106064797A (en) * | 2016-04-14 | 2016-11-02 | 衡阳市锦泰工具有限公司 | The sealing structure of hydraulic jack piston |
| CN107756744A (en) * | 2016-08-22 | 2018-03-06 | 上海光塑机械制造有限公司 | A kind of motor fixes single cylinder injection mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 442500 Hubei Yunxian Economic Development Zone, Shiyan, Hubei Patentee after: HUBEI JIAHENG TECHNOLOGY CO.,LTD. Address before: 442500 Hubei Yunxian Economic Development Zone, Shiyan, Hubei Patentee before: HUBEI JIAHENG TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
|
| CX01 | Expiry of patent term |