CN202251218U - Dust-proof low noise hydrocylinder - Google Patents
Dust-proof low noise hydrocylinder Download PDFInfo
- Publication number
- CN202251218U CN202251218U CN2011203777042U CN201120377704U CN202251218U CN 202251218 U CN202251218 U CN 202251218U CN 2011203777042 U CN2011203777042 U CN 2011203777042U CN 201120377704 U CN201120377704 U CN 201120377704U CN 202251218 U CN202251218 U CN 202251218U
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- China
- Prior art keywords
- hydrocylinder
- fixed cover
- low noise
- cover
- cavity
- Prior art date
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Abstract
The utility model discloses a dust-proof low noise hydrocylinder and aims to solve the problems of short service life, high noise and complicated structure of a traditional hydrocylinder. The dust-proof low noise hydrocylinder is characterized in that a protecting cover is composed of a fixed cover and a movable cover; the fixed cover is arranged outside a hydrocylinder body and has one end connected with the hydrocylinder body through a fastener and the other end connected with a hydrocylinder base pin; a cavity is formed inside the fixed cover; the movable cover is arranged outside a piston rod and has one end connected with a hydrocylinder front pin and the other end sticking into the cavity of the fixed cover to be connected with the fixed cover; and a muffler is arranged on the hydrocylinder body of the hydrocylinder. The dust-proof low noise hydrocylinder has the advantages of simple structure, strong stability, self-protection effect, low noise and low failure rate.
Description
Technical field
The utility model relates to a kind of oil cylinder, particularly a kind of dustproof low noise hydraulic jack.
Background technique
Hydraulic jack is widely used in machinery, heavy machineries such as excavator, bulldozer, fork truck especially, conventional hydraulic oil cylinder when operation exposed outside; Great majority do not possess protective housing, have its complex structure of hydraulic jack of protective housing individually, so hydraulic jack can not get good protection; Assorted dirt in the environment and foreign matter be collision or entering hydraulic jack easily; Thereby wearing and tearing and destruction oil cylinder reduce working life, increase rate of fault; And noise is big when using, and it is all the more so disturbed when damaging by foreign matter; Simultaneously, the existing most complex structure of hydraulic oil container that possesses the low noise characteristic, and do not possess the self-protection ability, and the adaptive faculty of environment is relatively poor to external world, and working life is low.
The model utility content
The utility model technical problem to be solved is the defective that overcomes existing technology, provide a kind of simple in structure, stability is strong, have the self-protection effect, noise is little, rate of fault is low dustproof low noise hydraulic jack.
For solving the problems of the technologies described above, the utility model provides a kind of dustproof low noise hydraulic jack, comprises oil cylinder and protective housing; It is characterized in that: said protective housing is made up of fixed cover and active cover, and said fixed cover is arranged at the cylinder body outside, and an end is connected with cylinder body through fastening piece; The other end links to each other with pin at the bottom of the oil cylinder, the inner cavity that forms of said fixed cover, and said active cover is arranged at the piston rod outside; Sell before one end and the oil cylinder and link to each other; The other end stretches in the cavity of fixed cover, is connected with fixed cover, and the cylinder body of said oil cylinder is provided with baffler.
Aforesaid dustproof low noise hydraulic jack is characterized in that: be provided with groove in the cavity of said fixed cover, said active cover connects through the embedding of groove phase in fixed cover.
Aforesaid dustproof low noise hydraulic jack is characterized in that: said baffler is the miniature air filtering silencer, and described miniature air filtering silencer communicates with cylinder cavity.
The beneficial effect that the utility model reached:
1, the utlity model has protective housing, its active cover can move with piston rod movement, constantly it is protected, and be difficult for breaking down, and the fastening structure integrity that fixed cover and fastening piece form is strong, and stability is better, and protective is better.
2, the utlity model has the miniature air filtering silencer, simple structure can stop in low noise that impurity gets into cavity, prevents to damage cylinder body, reduces rate of fault.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the A-A directional profile figure of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Like Fig. 1, shown in Figure 2, cylinder body (4), piston rod (3), fixed cover (1), the parallel mutually connection of active cover (3), wherein, fixed cover (1) is mainly used in protection cylinder body (4), and active cover (2) is mainly used in protection piston rod (3).Link to each other through fixing bolt between fixed cover (1) and the fastening piece (6); Be fastenedly connected with cylinder body (4), fixed cover (1) inside is cavity, and the side that fixed cover (1) links to each other with fastening piece (6) is coated on the cylinder body (4) fully; In fixed cover (1) cavity trench structure is arranged; Pin (7) links to each other before one end of active cover (2) and the oil cylinder, and with piston rod (3) associated movement, the other end stretches in fixed cover (1) cavity; Embed the groove in fixed cover (1) cavity, stablize its motion state with this.The cylinder body of oil cylinder (4) is provided with baffler (5), and baffler is arranged on the zone of be not fixed on the cylinder body (4) cover (1) or fastening piece (6) coating, and baffler (5) is the miniature air filtering silencer; The miniature air filtering silencer communicates with the cylinder block inner chamber, and when the utility model was worked, the gas in the cylinder body (4) can be through outside the miniature air filtering silencer effusion chamber; Reduce noise; Micro air filter also can get into cylinder body (4) by stop portions impurity when abating the noise simultaneously, thus the work of protection cylinder body (4); Avoid cylinder body (4) to damage, reduce the oil cylinder rate of fault.
The utility model main structure is simple, stability is strong, have the self-protection effect, noise is little, rate of fault is low.
Above embodiment limits the utility model never in any form, every above embodiment is made with the equivalent transformation mode other improve and use, all belong to the protection domain of the utility model.
Claims (3)
1. dustproof low noise hydraulic jack comprises oil cylinder (4) and protective housing, and it is characterized in that: said protective housing is made up of fixed cover (1) and active cover (2); Said fixed cover (1) is arranged at cylinder body (4) outside, and an end is connected with cylinder body (4) through fastening piece (6), and the other end links to each other with pin (8) at the bottom of the oil cylinder; The inner cavity that forms of said fixed cover (1); Said active cover (2) is arranged at piston rod (3) outside, and an end links to each other with the preceding pin of oil cylinder (7), and the other end stretches in the cavity of fixed cover (1); Be connected with fixed cover (1), the cylinder body of said oil cylinder (4) is provided with baffler (5).
2. dustproof low noise hydraulic jack according to claim 1 is characterized in that: be provided with groove in the cavity of said fixed cover (1), said active cover (2) connects through the embedding of groove phase in fixed cover (1).
3. dustproof low noise hydraulic jack according to claim 2 is characterized in that: said baffler (5) is the miniature air filtering silencer, and described miniature air filtering silencer communicates with oil cylinder (4) inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203777042U CN202251218U (en) | 2011-10-09 | 2011-10-09 | Dust-proof low noise hydrocylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203777042U CN202251218U (en) | 2011-10-09 | 2011-10-09 | Dust-proof low noise hydrocylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251218U true CN202251218U (en) | 2012-05-30 |
Family
ID=46112468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203777042U Expired - Fee Related CN202251218U (en) | 2011-10-09 | 2011-10-09 | Dust-proof low noise hydrocylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577700A (en) * | 2020-04-03 | 2020-08-25 | 武汉船用机械有限责任公司 | Sealing device of hydraulic oil cylinder and hydraulic oil cylinder |
-
2011
- 2011-10-09 CN CN2011203777042U patent/CN202251218U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577700A (en) * | 2020-04-03 | 2020-08-25 | 武汉船用机械有限责任公司 | Sealing device of hydraulic oil cylinder and hydraulic oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20121009 |