CN202851512U - Piston device of air pressure rod - Google Patents
Piston device of air pressure rod Download PDFInfo
- Publication number
- CN202851512U CN202851512U CN 201220525420 CN201220525420U CN202851512U CN 202851512 U CN202851512 U CN 202851512U CN 201220525420 CN201220525420 CN 201220525420 CN 201220525420 U CN201220525420 U CN 201220525420U CN 202851512 U CN202851512 U CN 202851512U
- Authority
- CN
- China
- Prior art keywords
- piston
- ring
- pressure rod
- rod
- air pressure
- 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.)
- Expired - Lifetime
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Abstract
Provided is a piston device of an air pressure rod. The piston device of the air pressure rod can be installed in a cylinder body of the air pressure rod, and comprises a piston rod, a piston, a ring unit and a gasket. The piston rod comprises an assembling section which can move up and down and is arranged in the cylinder body, and a rod section. The piston is installed in the assembling section, and comprises a piston ring body. The piston ring body is provided with an outer ring groove which is arranged on the outer edge of a bottom ring face in a concave mode. The ring unit comprises an outer airtight ring which is installed in the outer ring groove in a plug mode. The gasket is installed in the assembling section, is arranged below the piston ring body, and abuts against the bottom edge of the ring unit. Due to the fact that the ring unit is installed at the bottom of the piston ring body in the plug mode, the piston device of the air pressure rod can fix the ring unit only through the gasket, and is capable of achieving an airtight effect, not only can reduce steps of assembling, but also can save cost.
Description
Technical field
The utility model relates to a kind of piston apparatus, particularly relates to a kind of piston apparatus of pressure rod.
Background technique
Generally be installed in the pressure rod of chair tool bottom, its structure mainly comprises a cylinder body, and one can move up and down in this cylinder body and can adjust the piston apparatus of bench height.
Consult Fig. 1,2, the disclosed piston apparatus 1 of a kind of TaiWan, China letters patent book number M227135 utility model patent, it can be installed in the hollow cylinder body 21 of a pressure rod 2 up or down, this piston apparatus 1 comprises: one comprises the piston rod 11 of an external member section 111, one is set in the lower levelling plate 12 in this external member section 111, one is set in this external member section 111 and the compartment of terrain is positioned at the Upper gasket 13 of these lower levelling plate 12 tops, one is set in this external member section 111 and the convex ring 14 between this lower levelling plate 12 and this Upper gasket 13, one O shape encircles 15, and one ends oil ring 16.This convex ring 14 has a capel groove 141 that is arranged with at the inner side edge of its base ring face, and a cover annular groove 142 that is arranged with at the external side brim of its apical ring face.This cover annular groove 142 and this capel groove 141 are between the upper and lower every setting, and wherein, this capel groove 141 is for this O shape ring 15 plug dresses, and this overlaps annular groove 142 and filled for ending oil ring 16 plugs.
During described piston apparatus 1 assembling, assembler is inserted in this lower levelling plate 12 first the external member section 111 of this piston rod 11, then these O shape ring 15 plugs are filled in the capel groove 141 of this convex ring 14, and this convex ring 14 is mounted to this external member section 111 together with this O shape ring 15, and be pressed on this lower levelling plate 12; The continued access previous step should be ended oil ring 16 plugs and was filled in this cover annular groove 142; At last Upper gasket 13 is inserted in this external member section 111, and after being pressed in this convex ring 14 and should ending on the oil ring 16, this piston apparatus 1 is finished assembling.
Known piston apparatus 1 supplies respectively this O shape ring 15 and should end the design that oil ring 16 is filled in dress with cover annular groove 142 through the capel groove 141 of this convex ring 14, although can be airtight with cylinder body 21 formation of this pressure rod 2.But during actual assembled, because this cover annular groove 142 and this capel groove 141 are between the upper and lower every setting, therefore fix this O shape ring 15 with this lower levelling plate 12 except needs, the end face that also needs to utilize this Upper gasket 13 to abut against this convex ring 14 could be fixed and spacing only oil ring 16, many one steps of meeting when causing known piston apparatus 1 assembling, moreover many a slices Upper gasket 13 also is equal to the increase cost, so consider the convenience of assembling and the saving of cost, the design of described utility model patent is still waiting to improve.
Summary of the invention
The purpose of this utility model is to provide the piston apparatus of a kind of ease of assembly and the cost-effective pressure rod of energy.
The piston apparatus of the utility model pressure rod is installed in the cylinder body of a pressure rod, and comprises a piston rod, a piston, and a ring unit.This piston rod comprises an assembly part that can be positioned at up or down this cylinder body, and one from the bottom of this assembly part towards downward-extension and pass the bar section of the bottom of this cylinder body.This piston is assembled in the assembly part of this piston rod, and comprises a piston ring body, and this piston ring body has a base ring face, and an outer groove that is arranged with at the external side brim of this base ring face.This ring unit comprises that a plug is contained in the outer airtight ring on the outer groove of this piston.The piston apparatus of this pressure rod also comprises a slice and is assembled in the assembly part of this piston rod and position below the piston ring body of this piston, and leans the pad of the root edge of this ring unit.
The piston apparatus of pressure rod described in the utility model, the piston ring body of this piston also has an inner groove that is arranged with at the inner side edge of this base ring face, and this ring unit comprises that also a plug is contained in the interior airtight ring in this inner groove.
The beneficial effects of the utility model are: the outer groove of this piston is for the outer airtight ring plug dress of this ring unit, and this outer groove is the design that is arranged with at the external side brim of this base ring face, so can lacking a slice when making, the utility model abuts against in the pad of the end face of this piston, and only need a slice to lean pad at the root edge of this ring unit, except ease of assembly, also can save cost.
Description of drawings
Fig. 1 is the assembled sectional view of a cylinder body of TaiWan, China letters patent book number M227135 new patent and a pressure rod;
Fig. 2 is the three-dimensional exploded view of this utility model patent;
Fig. 3 is the assembled sectional view of a cylinder body of the preferred embodiment of piston apparatus of the utility model pressure rod and a pressure rod;
Fig. 4 is the three-dimensional exploded view of this preferred embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated, is noted that in the following description content, similarly element represents with identical numbering.
Consult Fig. 3,4, a preferred embodiment of the piston apparatus of the utility model pressure rod is applicable to be installed in the cylinder body 31 that one of a pressure rod 3 is hollow.The piston apparatus of this pressure rod comprises: a piston rod 4, a piston 5, a ring unit 6, and a pad 7.
This piston rod 4 is to be made of metal, and comprises that one can be positioned at the assembly part 41 of this cylinder body 31 up or down, and one from the bottom of this assembly part 41 towards downward-extension and pass the bar section 42 of the bottom of this cylinder body 31.
This piston 5 is to be made of metal, and is assembled in the assembly part 41 of this piston rod 4.This piston 5 comprises that one is the piston ring body 51 of hollow and annular, and this piston ring body 51 has a base ring face 511, and is arranged with outer groove 512 at the external side brim of this base ring face 511 and an inner groove 513 that is arranged with at the inner side edge of this base ring face 511.
This ring unit 6 is to be made by rubber or silica gel, comprise that one fills in the outer airtight ring 61 in the outer groove 512 that is contained in this piston 5, and a plug is contained in the interior airtight ring 62 in this inner groove 513.Should be close to the cylinder body 31 of these pressure rods 3 by outer airtight ring 61, and be somebody's turn to do the outer circumferential face of the assembly part 41 of interior airtight ring 62 these piston rods 4 of next-door neighbour.
This pad 7 is to be made of metal and to be hollow and annular.This pad 7 is assembled in the assembly part 41 of this piston rod 4, and the position is below the piston ring body 51 of this piston 5.The end face of this pad 7 leans the root edge of this ring unit 6, allows this ring unit 6 can be fixed on the bottom of this piston ring body 51.
During this preferred embodiment assembling, assembler is inserted in this pad 7 on the assembly part 41 of this piston rod 4 first, and the outer airtight ring 61 of this ring unit 6 fill in respectively outer groove 512 and the inner groove 513 that is filled to this piston 5 with interior airtight ring 62, then simultaneously this piston 5 is inserted on this assembly part 41 with this ring unit 6, and the root edge of airtight ring 62 abuts against respectively on the end face of this pad 7 in making this outer airtight ring 61 and being somebody's turn to do, at this moment, the piston apparatus of this pressure rod is just finished assembling.
In sum, utilize these ring unit 6 plugs to be contained in the design of the bottom of this piston 5, so that the utility model only needs a pad 7 just can fix this ring unit 6, and then reaches airtight effect, assemble the convenience except increasing, also can Cost reduction.
Claims (2)
1. the piston apparatus of a pressure rod, be installed in the cylinder body of a pressure rod, and comprise a piston rod, a piston, and ring unit, this piston rod comprises an assembly part that can be positioned at up or down this cylinder body, and one from the bottom of this assembly part towards downward-extension and pass the bar section of the bottom of this cylinder body, this piston is assembled in the assembly part of this piston rod, and comprise a piston ring body, this piston ring body has a base ring face, and an outer groove that is arranged with at the external side brim of this base ring face, this ring unit comprises that a plug is contained in the outer airtight ring on the outer groove of this piston; It is characterized in that: the piston apparatus of this pressure rod also comprises a slice and is assembled in the assembly part of this piston rod and position below the piston ring body of this piston, and leans the pad of the root edge of this ring unit.
2. the piston apparatus of pressure rod according to claim 1, it is characterized in that: the piston ring body of this piston also has an inner groove that is arranged with at the inner side edge of this base ring face, and this ring unit comprises that also a plug is contained in the interior airtight ring in this inner groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525420 CN202851512U (en) | 2012-10-15 | 2012-10-15 | Piston device of air pressure rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525420 CN202851512U (en) | 2012-10-15 | 2012-10-15 | Piston device of air pressure rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851512U true CN202851512U (en) | 2013-04-03 |
Family
ID=47982719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220525420 Expired - Lifetime CN202851512U (en) | 2012-10-15 | 2012-10-15 | Piston device of air pressure rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112623202A (en) * | 2020-12-11 | 2021-04-09 | 哈尔滨飞机工业集团有限责任公司 | Lubricating support and sealing dustproof device for undercarriage buffer strut |
-
2012
- 2012-10-15 CN CN 201220525420 patent/CN202851512U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112623202A (en) * | 2020-12-11 | 2021-04-09 | 哈尔滨飞机工业集团有限责任公司 | Lubricating support and sealing dustproof device for undercarriage buffer strut |
| CN112623202B (en) * | 2020-12-11 | 2023-06-23 | 哈尔滨飞机工业集团有限责任公司 | Landing gear buffer support column lubrication support and sealing dustproof device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
|
| CX01 | Expiry of patent term |