CN208185471U - A kind of dustband being self-regulated - Google Patents
A kind of dustband being self-regulated Download PDFInfo
- Publication number
- CN208185471U CN208185471U CN201820481074.5U CN201820481074U CN208185471U CN 208185471 U CN208185471 U CN 208185471U CN 201820481074 U CN201820481074 U CN 201820481074U CN 208185471 U CN208185471 U CN 208185471U
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- CN
- China
- Prior art keywords
- dust blowing
- dustband
- regulated
- self
- ring
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of dustband that can be self-regulated.The dustband being self-regulated includes the dust blowing ring and resilient, elastomeric being placed on piston rod, the dust blowing ring includes the L-shaped ontology in cross section, setting the first dust blowing lip that portion extends to axle center on the body and the second dust blowing lip that body lower part extends to axle center is arranged in, the L-type ontology includes integrally formed first annular set and the second annular sleeve, less than the outer diameter of the second ring set, the resilient, elastomeric is circumferentially arranged on the outer wall of the first annular set outer diameter of first ring set.The dustband provided by the utility model being self-regulated, structure is simple, dust blowing lip is not easy to turn up, regulating power is good, groove structure is simple, good dustproof effect, while having the characteristics that wear-resisting, the service life is long.
Description
Technical field
The utility model relates to sealing element technical fields, and in particular to the dustband that one kind can be self-regulated.
Background technique
Dustband is mainly used for oil cylinder or transmission shaft, and main function is to remove reciprocating piston bar to be exposed at cylinder outer surface
The dirts such as upper accompanying dust, dust and sand, water, prevent external dust, water from entering inside sealing mechanism, cause sealing ring, guiding
Ring is damaged or worn out.Dustband preferably passes through sharp lipped configuration and plunger rod contacts, and has lower friction system
Number is realizing the abrasion for preventing extraneous dust that from capable of also reducing equipment while entering sealing system in this way.Existing dustband, by
In dustband size and contact part match degree it is not good enough, be commonly present between dustband inner wall and contact workpiece contact it is unstable
And occurring gap between contact workpiece after generating the lip abrasion of the phenomenon that turning up or dustband, this will lead to sealing and loses
Effect, foreign object are easily accessible in sealing mechanism.
Utility model content
The utility model provides a kind of dustband that can be self-regulated, to solve existing dustband and contact part match
Spend the problems such as not good enough, dust blowing lip wears and generates seal failure, foreign object is easily accessible in sealing mechanism.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: the dustband that one kind can be self-regulated, including
Dust blowing ring and the resilient, elastomeric being placed on piston rod, the dust blowing ring include the L-shaped ontology in cross section, are arranged on the body
The the first dust blowing lip and the second dust blowing lip that body lower part extends to axle center, the L-type sheet are set that portion extends to axle center
Body includes integrally formed first annular set and the second annular sleeve, the outer diameter of first ring set less than the second ring set outer diameter,
The resilient, elastomeric is circumferentially arranged on the outer wall of the first annular set.
Further, the cross section of the first dust blowing lip is rectangle.
Further, the cross section of the second dust blowing lip is triangle.
Further, the dust blowing ring is polytetrafluoroethylene (PTFE) material.
Further, the resilient, elastomeric is nitrile rubber or fluorine glue material matter.
Compared with prior art, the utility model has following the utility model has the advantages that structure is simple, dust blowing lip is not easy to turn up, adjust
Ability is good, groove structure is simple, good dustproof effect, has good effect to strong sticky dust and ice cube；Have simultaneously
When starting without creep, sticking phenomenon and it is wear-resisting, the service life is long, maximum gauge is up to 1000mm or more the features such as.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of dustband one specific embodiment described in the utility model being self-regulated.
As shown in the figure: 1- resilient, elastomeric, 2- dust blowing ring, 21- the first dust blowing lip, 22- the second dust blowing lip, 23- are first annular
Set, the second annular sleeve of 24-, 3- piston rod, 4- cylinder cap, 41- groove.
Specific embodiment
In order to make it easy to understand, illustrating the technical characteristics of the utility model below with reference to embodiment.It should be understood that these embodiments
It is merely to illustrate the utility model rather than limitation the scope of the utility model.
Shown in referring to Fig.1, the dustband described in the utility model being self-regulated, including the dust blowing ring 2 being placed on piston rod 3
With resilient, elastomeric 1.The dust blowing ring 2 include the L-shaped ontology in cross section, setting on the body portion extend to axle center the
One dust blowing lip 21 and the second dust blowing lip 22 that body lower part extends to axle center is set, the piston rod 3 is only with described first
Dust blowing lip 21 and the second dust blowing lip 22 are in contact, and the cross section of the first dust blowing lip 21 is rectangle and wherein on one side and piston rod
3 are in contact, that is, are face contact between piston rod 3 and the first dust blowing lip 21, and the cross section of the second dust blowing lip 22 is three
It is angular and wherein an apex angle is in contact with piston rod 3, that is, contacted between piston rod 3 and the second dust blowing lip 21 for line.This pair
Bead structure is conducive to improve leakproofness, the dust-proof effect of dust blowing ring 2.The L-type ontology includes integrally formed first annular set
23 and second annular sleeve 24, the outer diameter of the first annular set 23 is smaller than the outer diameter of the second annular sleeve 24, the resilient, elastomeric 1
Circumferentially it is arranged on the outer wall of the first annular set 23.
Further, the preferred nitrile rubber of the resilient, elastomeric 1 or fluorine glue material matter.In a free state, resilient, elastomeric 1 is convex
The outer wall of second annular sleeve 24 out, it is ensured that resilient, elastomeric 1 is in by pressure shape after the dustband installation being self-regulated
State, so that resilient, elastomeric 1 can realize that the position to dust blowing ring 2 is adjusted, and makes dust blowing ring 2 match with piston rod 3.In addition,
Resilient, elastomeric 1 can also compensate the abrasion loss of the first dust blowing lip 21 and the second dust blowing lip 22, i.e., when the first dust blowing lip 21
When wearing with the second dust blowing lip 22, since resilient, elastomeric 1 presses always first annular set 23, it can guarantee above-mentioned two
A dust blowing lip is tightly attached to always on piston rod 3.
Preferably, the dustband 2 is using the polytetrafluoroethyl-ne with characteristics such as high abrasion, high temperature resistant, extremely low coefficient of frictions
Alkene material, thus have when starting without creep, the characteristics such as sticking phenomenon and wear-resisting, service life are long.
Further, with continued reference to shown in Fig. 1, the dustband described in the utility model being self-regulated is mounted on cylinder cap 4
In groove 41, the section of the groove 41 is simple rectangular configuration, easily processed into type.Resilient, elastomeric 1 is squeezed by groove 41
Pressure can generate pressure to first annular set 23, and then act on the first dust blowing lip 21 and the first dust blowing lip 22, make the first dust blowing
Lip 21 and the second dust blowing lip 22 are able to maintain steadily pressure and are attached on piston rod 3, and dust blowing ring 2 is avoided to turn up, and improve dust blowing ring 2 and strike off
The ability of dust.Meanwhile second annular sleeve 24 also will receive the extruding of resilient, elastomeric 1, be attached to the inner wall of groove 41 always
On, it effectively prevent the second dust blowing lip 22 to turn up, further increases the leakproofness of dust blowing ring 2.
The utility model has the following beneficial effects: structure is simple, dust blowing lip is not easy to turn up, regulating power is good, groove knot
Structure is simple, good dustproof effect, has good effect to strong sticky dust and ice cube；Simultaneously have when starting without creep,
Sticking phenomenon and it is wear-resisting, the service life is long, maximum gauge is up to 1000mm or more the features such as.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations.
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or to some or all of the technical features
It is equivalently replaced, and these modifications or substitutions, various embodiments of the utility model that it does not separate the essence of the corresponding technical solution
The range of technical solution.
Claims (5)
1. the dustband that one kind can be self-regulated, which is characterized in that including the dust blowing ring being placed on piston rod and resilient, elastomeric, institute
Stating dust blowing ring includes that the L-shaped ontology in cross section, setting the first dust blowing lip that portion extends to axle center on the body and setting exist
The second dust blowing lip that body lower part extends to axle center, the L-type ontology include integrally formed first annular set and the second ring
Shape set, the outer diameter of first ring set is less than the outer diameter of the second ring set, and the resilient, elastomeric circumferential direction setting is described first annular
On the outer wall of set.
2. the dustband according to claim 1 being self-regulated, which is characterized in that the cross section of the first dust blowing lip is
Rectangle.
3. the dustband according to claim 1 being self-regulated, which is characterized in that the cross section of the second dust blowing lip is
Triangle.
4. the dustband according to claim 1 being self-regulated, which is characterized in that the dust blowing ring is polytetrafluoroethylene (PTFE) material
Matter.
5. the dustband according to claim 1 being self-regulated, which is characterized in that the resilient, elastomeric be nitrile rubber or
Fluorine glue material matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820481074.5U CN208185471U (en) | 2018-04-04 | 2018-04-04 | A kind of dustband being self-regulated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820481074.5U CN208185471U (en) | 2018-04-04 | 2018-04-04 | A kind of dustband being self-regulated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208185471U true CN208185471U (en) | 2018-12-04 |
Family
ID=64435903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820481074.5U Expired - Fee Related CN208185471U (en) | 2018-04-04 | 2018-04-04 | A kind of dustband being self-regulated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208185471U (en) |
-
2018
- 2018-04-04 CN CN201820481074.5U patent/CN208185471U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181204 Termination date: 20210404 |