CN203161950U - Automobile air spring - Google Patents
Automobile air spring Download PDFInfo
- Publication number
- CN203161950U CN203161950U CN 201320147564 CN201320147564U CN203161950U CN 203161950 U CN203161950 U CN 203161950U CN 201320147564 CN201320147564 CN 201320147564 CN 201320147564 U CN201320147564 U CN 201320147564U CN 203161950 U CN203161950 U CN 203161950U
- Authority
- CN
- China
- Prior art keywords
- air spring
- automobile air
- cylinder body
- piston rod
- protecting cover
- 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
The utility model provides an automobile air spring and relates to the technical field of automobile manufacture. The automobile air spring comprises a cylinder body and a piston rod extending from a porthole in one end of the cylinder body. One end of the cylinder body is provided with a protecting sleeve sleeved outside the porthole in the cylinder body and a section of a rod body of the piston rod. The distance L between the porthole and one end of the protecting sleeve is larger than or equal to the maximum stroke of the piston rod. The protecting sleeve is fastened to one end of the cylinder body through a strap. One end of the protecting sleeve is provided with a section of closing-up opening. The inner diameter of the closing-up opening is larger than the outer diameter of the piston rod. Compared with the prior art, as the protecting sleeve is installed, the automobile air spring can effectively prevent dirt such as muddy water and dust from polluting a sealing ring of the automobile air spring, keeps the sealing ring clean, prevents work failure of the sealing ring of the automobile air spring due to pollution of the sealing ring, lowers a failure rate of the automobile air spring greatly, and promotes work reliability of the automobile air spring.
Description
Technical field
The utility model relates to field of automobile, especially a kind of air spring for automobile.
Background technique
Air spring is a kind of accessory that can play functions such as support, buffering, and the Automobile air spring that is used for the normal control vehicle engine hood just plays the effect of supporting engine hood.This Automobile air spring comprises the piston rod that an end is fixed on the cylinder body on the engine hood and stretches out from the aperture of the described cylinder body the other end, be provided with seal ring between the described inboard wall of cylinder block at place, nearly described aperture and described piston rod, an end of described piston rod is fixed on the vehicle frame.In use there are the following problems for this Automobile air spring: the seal ring exterior edge face that is positioned at cylinder body one stomidium mouth place can be subjected to the pollution of fouls such as muddy water, dust, and these fouls can enter seal ring inside from the aperture; Whenever supporting with the Automobile air spring when engine hood opened, be bonded at piston rod surface dust can along with piston rod be moved into seal ring inside, pollute seal ring, can cause faults such as Automobile air spring operational failure when serious.
The model utility content
Technical problem to be solved in the utility model provides a kind of fouls such as muddy water, dust that prevent and pollutes the Automobile air spring of seal ring.
In order to address the above problem, the technical solution adopted in the utility model is: this Automobile air spring, the piston rod that includes cylinder body and stretch out from the aperture of described cylinder body one end, the protecting cover outside an end of described cylinder body is provided with the described aperture that is sleeved on described cylinder body and one section described piston rod body of rod.
In the above-mentioned Automobile air spring technological scheme, technological scheme can also be more specifically: the distance L of described protecting cover one end termination from described aperture to protecting cover is more than or equal to the range of described piston rod.
Further, described protecting cover is fastened on an end of described cylinder body by hoop.
Further, an end of described protecting cover is provided with one section closing in, and the internal diameter of described closing in is greater than the external diameter of described piston rod.
Owing to adopted technique scheme, the utility model compared with prior art has following beneficial effect:
1, the Automobile air spring is equipped with protecting cover, prevents that effectively fouls such as muddy water, dust from entering in the seal ring of air spring, avoids causing because seal ring is contaminated and faults such as Automobile air spring operational failure has reduced the after-sales service expense significantly;
2, simple in structure, installation or removal are convenient, can high temperature resistant and low temperature, and can under bad working environments, keep sealability.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation.
Fig. 2 is the schematic representation of the utility model embodiment's protecting cover.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment:
The piston rod 6 that Automobile air spring as shown in Figure 1 includes cylinder body 1 and stretches out from the aperture of cylinder body 1 one ends, near between cylinder body 1 inwall at aperture place and the piston rod 6 seal ring 4 being housed, cylinder body 1 one ends are set with the protecting cover 5 outside cylinder body 1 aperture and one section piston rod 6 body of rod; Protecting cover 5 has a microscler cylindrical shell 5-2, the end outside of cylindrical shell 5-2 has spacing preiection 5-1, the other end of cylindrical shell 5-2 that one section closing in 5-3 is arranged, as shown in Figure 2, the internal diameter of closing in 5-3 is greater than the external diameter of piston rod 6, and the internal diameter of closing in 5-3 can just allow piston rod 6 pass through and not scratching piston rod 6; Protecting cover 5 is fastened on an end of cylinder body 1 by hoop 2 usefulness screws 3, and a side of hoop 2 is close to the spacing preiection 5-1 of cylindrical shell 5-2.Protecting cover 5 is from the distance L of aperture to the protecting cover 5 one end terminations of cylinder body 1 range more than or equal to piston rod 6.Present embodiment Automobile air spring is sleeved on seal ring 4 in the protecting cover 5, prevents that effectively fouls such as muddy water, dust from polluting seal ring 4; Protecting cover 5 is from the distance L of aperture to the protecting cover 5 one end terminations of cylinder body 1 range more than or equal to described piston rod 6, make that dust can not enter seal ring 4 along with piston rod 6 in piston rod 6 movement processes, the cleaning that keeps seal ring 4, the functional reliability of lifting Automobile air spring.
Present embodiment Automobile air spring connects automotive hood, utilize the compressibility of the gentle body of stress surface product moment at Automobile air spring piston two ends to produce elastic force, under the gas pressure effect, generation is to the pressure of the little side of lifting surface area, and promotion piston and piston rod move and support automotive hood.
Claims (5)
1. Automobile air spring, the piston rod (6) that includes cylinder body (1) and stretch out from the aperture of described cylinder body (1) one end is characterized in that: be provided with the described aperture that is sleeved on described cylinder body (1) and the protecting cover (5) outside one section described piston rod (6) body of rod at an end of described cylinder body (1).
2. according to the described Automobile air spring of claim 1, it is characterized in that: the distance L of described protecting cover (5) (5) one end terminations from described aperture to protecting cover is more than or equal to the range of described piston rod (6).
3. according to claim 1 or 2 described Automobile air springs, it is characterized in that: described protecting cover (5) is fastened on an end of described cylinder body (1) by hoop (2).
4. according to claim 1 or 2 described Automobile air springs, it is characterized in that: an end of described protecting cover (5) is provided with one section closing in (5-3), and the internal diameter of described closing in (5-3) is greater than the external diameter of described piston rod (6).
5. according to the described Automobile air spring of claim 3, it is characterized in that: an end of described protecting cover (5) is provided with one section closing in (5-3), and the internal diameter of described closing in (5-3) is greater than the external diameter of described piston rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147564 CN203161950U (en) | 2013-03-28 | 2013-03-28 | Automobile air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320147564 CN203161950U (en) | 2013-03-28 | 2013-03-28 | Automobile air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161950U true CN203161950U (en) | 2013-08-28 |
Family
ID=49023136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320147564 Expired - Lifetime CN203161950U (en) | 2013-03-28 | 2013-03-28 | Automobile air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203161950U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675900A (en) * | 2015-03-19 | 2015-06-03 | 柳州市永益机械制造有限公司 | Gas spring with dustproof device |
-
2013
- 2013-03-28 CN CN 201320147564 patent/CN203161950U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675900A (en) * | 2015-03-19 | 2015-06-03 | 柳州市永益机械制造有限公司 | Gas spring with 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: 20130828 |
|
| CX01 | Expiry of patent term |