CN220727114U - Dustproof oil seal convenient to disassemble - Google Patents

Abstract

The utility model discloses a convenient-to-detach dustproof oil seal, which relates to the technical field of oil seals and comprises an elastic outer sleeve, wherein two clamping grooves which are symmetrical to each other are formed in the outer wall of the elastic outer sleeve, an elastic connecting belt is arranged on the inner wall of the clamping groove, a pull-free block which is matched with the clamping groove is arranged at one end of the elastic connecting belt, which is far away from the clamping groove, an elastic friction block which is in contact with the inner wall of the clamping groove is arranged on the outer wall of the pull-free block, and a digging groove is formed in the inner wall of the clamping groove.

Description

Dustproof oil seal convenient to disassemble

Technical Field

The utility model relates to the technical field of oil seals, in particular to a dust-proof oil seal convenient to detach.

Background

The oil seal is a precise rubber part with high technical content, and is used for preventing leakage of lubricating oil or other media through contact of sealing elements such as flexible rubber, plastic and the like with a shaft, and the oil seal traditionally used on a transfer case of a tractor is an iron shell type oil seal, so that the dust-proof capability is poor, the sealing performance is poor, and the oil leakage condition is easy to occur at a main shaft of the tractor; however, the existing combined type three-auxiliary-lip oil seal has poor sealing effect because the auxiliary lip and the oil seal spring are one, and the oil seal double-dustproof lip outside the oil seal is not provided with the oil seal spring, so the dust prevention effect is also poor, meanwhile, the oil seal spring is inconvenient to install, detach and replace, the problem of reducing the sealing effect after corrosion damage exists, and the problem of difficult installation, detachment and combination is easily caused by the existence of a framework during assembly.

The prior patent (publication number CN 204114111U) discloses a dust-proof oil seal convenient to detach, which comprises an oil seal outer framework and an oil seal inner framework, wherein one end of the oil seal inner framework is arranged on the inner side of one end of the oil seal outer framework, the other end of the oil seal outer framework is provided with an outer oil seal double dust-proof lip, the other end of the oil seal inner framework is provided with an inner oil seal main lip and an inner oil seal auxiliary lip, and the inner oil seal main lip is provided with an oil seal spring; the dust sealing effect is good, oil leakage is avoided at the main shaft bearing of the transfer case, the sealing reliability is improved, and the service life of the oil seal is prolonged.

Above-mentioned dustproof oil blanket convenient to dismantle is in the practical application in-process, because its vice lip and oil blanket spring are one, leads to its sealed effect relatively poor, and its two dustproof lips of outer oil blanket are not provided with oil blanket spring, so its dustproof effect is also relatively poor, and its oil blanket spring is inconvenient to install, dismantles and change simultaneously, has the problem that reduces sealed effect after the corruption is impaired, and especially the existence of its skeleton easily leads to being difficult to the problem of installation, dismantlement and combination during the assembly.

For this reason, it is necessary to provide a dust seal which is easy to disassemble and solves the above technical problems.

Disclosure of Invention

The utility model provides a convenient-to-detach dustproof oil seal, which solves the technical problems that the existing combined type three-auxiliary-lip oil seal is poor in sealing effect because the auxiliary lip and an oil seal spring are one, and the oil seal spring is not arranged on the external double dustproof lips of the oil seal, so that the dustproof effect is poor, and meanwhile, the oil seal spring is inconvenient to install, detach and replace, and the sealing effect is reduced after corrosion damage, and the technical problems that the installation, the detachment and the combination are difficult to realize are easily caused by the existence of a framework during assembly.

In order to solve the technical problems, the dustproof oil seal convenient to detach comprises an elastic outer sleeve, wherein two clamping grooves which are symmetrical to each other are formed in the outer wall of the elastic outer sleeve, an elastic connecting belt is arranged on the inner wall of each clamping groove, a pull-out block which is matched with the clamping groove is arranged at one end, far away from the clamping groove, of each elastic connecting belt, an elastic friction block which is abutted against the inner wall of each clamping groove is arranged on the outer wall of each pull-out block, and a groove is formed in the inner wall of each clamping groove.

Preferably, the inner wall of the elastic outer sleeve is attached with an elastic ring, the inner wall of the elastic ring is attached with an elastic inner sleeve, the inner wall of the elastic inner sleeve is integrally formed with an oil seal main lip and three oil seal auxiliary lips, the outer wall of the elastic inner sleeve is embedded with three first oil seal springs, the three oil seal auxiliary lips are respectively symmetrical with the three first oil seal springs, the inner top wall of the elastic outer sleeve is embedded with a second oil seal spring, and the inner side wall of the elastic outer sleeve is integrally formed with a dustproof lip.

Preferably, the elastic outer sleeve, the elastic ring and the elastic inner sleeve are all made of rubber.

Preferably, the number of the dust lips is two.

Preferably, a first annular groove matched with the first oil seal spring is formed in the outer wall of the elastic inner sleeve.

Preferably, a second annular groove matched with the second oil seal spring is formed in the inner top wall of the elastic outer sleeve.

Preferably, the top and bottom of the elastic jacket are uniformly formed with chamfers.

Preferably, a third annular groove is formed in the outer wall of the elastic outer sleeve, and a third oil seal spring is integrally formed in the outer wall of the elastic ring.

Compared with the related art, the dustproof oil seal convenient to detach has the following beneficial effects:

1. through setting up and digging the groove, make things convenient for the staff to scratch out the easy-to-draw piece from the draw-in groove, through setting up the elastic connection area, avoid easy-to-draw piece to break away from the draw-in groove, and then conveniently dismantle the elasticity overcoat through pulling two easy-to-draw pieces, through setting up the elastic friction piece, increased the frictional force between easy-to-draw piece and the draw-in groove, and then conveniently accomodate easy-to-draw piece in the non-dismantlement messenger and avoid influencing the normal use of elasticity overcoat at the draw-in groove.

2. According to the utility model, the elastic outer sleeve, the elastic ring and the elastic inner sleeve are arranged, the elastic deformation is followed by convenient installation, disassembly and combination, the integral sealing effect of the oil seal is improved by arranging the three oil seal auxiliary lips and the three first oil seal springs, the dustproof effect is ensured by arranging the two dustproof lips and the second oil seal springs, and the problems that the existing combined three auxiliary lip oil seal is difficult to install, disassemble and combine due to poor sealing effect and poor dustproof effect and the existence of a framework thereof are solved.

3. According to the utility model, the elastic outer sleeve, the elastic ring and the elastic inner sleeve which are made of rubber materials are convenient to mount and dismount after elastic deformation, the service life is prolonged, the first oil seal spring is convenient to mount and dismount through the arrangement of the first annular groove, the first oil seal spring is further convenient to replace respectively to ensure the sealing effect, the second oil seal spring is convenient to mount and dismount through the arrangement of the second annular groove, and the first oil seal spring is further convenient to replace respectively to ensure the dustproof effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

FIG. 1 is a schematic view of the overall structure of a dust seal which is easy to disassemble;

FIG. 2 is a schematic cross-sectional view of a dust seal for easy disassembly;

fig. 3 is an enlarged view of the structure at a in fig. 1.

Reference numerals in the drawings: 1. an elastic outer jacket; 2. an elastic ring; 3. an elastic inner sleeve; 4. an oil seal auxiliary lip; 5. a first oil seal spring; 6. a second oil seal spring; 7. a dust lip; 8. a first annular groove; 9. a second annular groove; 10. chamfering; 11. an oil seal main lip; 12. a third annular groove; 13. a third oil seal spring; 14. a clamping groove; 15. an elastic connecting band; 16. an easy-to-pull block; 17. an elastic friction block; 18. and (5) digging a groove.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

Embodiments of the present utility model are described in detail below.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The first embodiment is given by fig. 1-3, a dustproof oil seal convenient to dismantle, including elastic coat 1, two draw-in grooves 14 of mutual symmetry have been seted up to elastic coat 1's outer wall, elastic connecting band 15 is installed to the inner wall of draw-in groove 14, elastic connecting band 15 is kept away from the one end of draw-in groove 14 and is installed the easy-pull piece 16 with draw-in groove 14 looks adaptation, elastic friction piece 17 inconsistent with draw-in groove 14 inner wall is installed to easy-pull piece 16's outer wall, draw-in groove 18 has been seted up to the inner wall of draw-in groove 14, through setting up draw-in groove 18, make things convenient for the people's hand to draw-in piece 16 out from draw-in groove 14, through setting up elastic connecting band 15, avoid easy-pull piece 16 to break away from draw-in groove 14, and then make things convenient for dismantling elastic coat 1 through setting up elastic friction piece 17, the frictional force between easy-pull piece 16 and the draw-in groove 14 has been increased, and then make easy-pull piece 16 is not taken in the draw-in groove 14 and avoid influencing elastic coat 1's normal use.

Embodiment two, on the basis of embodiment one, the inner wall laminating of elasticity overcoat 1 has elastic ring 2, the inner wall laminating of elastic ring 2 has elasticity endotheca 3, the inner wall integrated into one piece of elasticity endotheca 3 has oil blanket main lip 11 and three oil blanket pair lip 4, the outer wall of elasticity endotheca 3 is inlayed and is equipped with three first oil blanket spring 5, three oil blanket pair lip 4 respectively with three first oil blanket spring 5 mutual symmetry, the interior roof of elasticity overcoat 1 is inlayed and is equipped with second oil blanket spring 6, the inside wall integrated into one piece of elasticity overcoat 1 has dustproof lip 7, through setting up elasticity overcoat 1, elastic ring 2 and elasticity endotheca 3, easy to assemble and dismantle and the combination after the elastic deformation, through setting up three oil blanket pair lip 4, sealing effect has been promoted, through setting up the sealing effect with three first oil blanket spring 5 of three oil blanket pair lip 4 mutual symmetry, thereby the whole sealing effect of this oil blanket has been promoted, through setting up two dustproof lips 7, ensure that the top of elasticity overcoat 1 has good effect, effectively avoid getting into in it, through setting up second oil blanket 6, further the dustproof effect that two sets up of three seal pair lips 7 have been difficult to install with the poor dustproof effect of dust, poor combination and poor dustproof effect has been difficult to solve with the existing dust seal of combination.

In addition, for the elastic coat 1, the chamfer 10 is integrally formed at the top and the bottom, the chamfer 10 has certain safety, the corners of the elastic coat are not easy to scratch a user during assembly and combination, and meanwhile, the elastic coat has certain aesthetic property.

In addition, to dustproof lip 7, its quantity is two, through setting up two dustproof lips 7, ensures that the top of elasticity overcoat 1 has good dustproof effect, effectively avoids the dust to get into in it.

In addition, to elastic coat 1, its outer wall has seted up third ring channel 12, and elastic ring 2's outer wall integrated into one piece has third oil blanket spring 13, through setting up third ring channel 12, has made things convenient for the insertion of screwdriver and has chosen elastic coat 1, therefore the dismantlement of elastic coat 1 of being convenient for more has promoted elastic ring 2's sealed effect through setting up third oil blanket spring 13.

The third embodiment is that, on the basis of the second embodiment, the elastic outer sleeve 1, the elastic ring 2 and the elastic inner sleeve 3 are made of rubber, the rubber is made of high elastic polymer material with reversible deformation, the rubber is elastic, the high elastic polymer material can generate larger deformation under the action of small external force, the elastic outer sleeve can recover after the external force is removed, the elastic outer sleeve 1, the elastic ring 2 and the elastic inner sleeve 3 are made of rubber, the elastic outer sleeve 1, the elastic ring 2 and the elastic inner sleeve 3 are convenient to install and detach and are combined after elastic deformation, the service lives of the elastic outer sleeve 1, the elastic ring 2 and the elastic inner sleeve 3 are prolonged, the first annular groove 8 matched with the first oil seal spring 5 is formed in the outer wall of the elastic inner sleeve 3, the first oil seal spring 5 is convenient to install and detach through the first annular groove 8, the first oil seal spring 5 is convenient to replace respectively, the second annular groove 9 matched with the second oil seal spring 6 is convenient to install and detach, and the second oil seal spring 6 is convenient to replace respectively, and the dust-proof effect is guaranteed.

Working principle:

when this oil blanket is convenient to dismantle in the use:

through setting up and digging groove 18, make things convenient for the people's hand to pull out easily the piece 16 from draw-in groove 14 in, through setting up elastic connection area 15, avoid easily pulling piece 16 to break away from draw-in groove 14, and then through pulling two easily pull piece 16 and conveniently dismantle elastic coat 1, through setting up elastic friction piece 17, increased the frictional force between easily pull piece 16 and the draw-in groove 14, and then conveniently accomodate easily pull piece 16 in the non-dismantlement messenger and avoid influencing the normal use of elastic coat 1 at draw-in groove 14.

The oil seal ensures the sealing effect and the dustproof effect in the use process, and is convenient to install, disassemble and combine:

through setting up elastic coat 1, elastic ring 2 and elasticity endotheca 3, easy to assemble and dismantlement and combination after the elastic deformation, through setting up the vice lip of three oil blanket 4, sealed effect has been promoted, through setting up the vice lip of three oil blanket 4 mutual symmetry's the vice lip of three first oil blanket spring 5, the sealed effect of three oil blanket has been promoted, thereby the whole sealed effect of this oil blanket has been promoted, through setting up two dustproof lips 7, ensure that the top of elastic coat 1 has good dustproof effect, effectively avoid the dust to get into it, through setting up second oil blanket spring 6, further promoted the dustproof effect of two dustproof lips 7, the sealed effect of current combination formula vice lip oil blanket is relatively poor and dustproof effect is relatively poor and the existence of its skeleton leads to being difficult to the installation, dismantle and the problem of combination.

The oil seal further ensures the sealing effect and the dustproof effect in the use process, and prolongs the service lives of the elastic outer sleeve 1, the elastic ring 2 and the elastic inner sleeve 3:

the rubber is a high-elasticity polymer material with reversible deformation, is elastic, can generate larger deformation under the action of small external force, can recover after removing the external force, has the functions of acid resistance, alkali resistance, oil resistance and corrosion resistance, and is convenient to install, detach and combine through the elastic outer sleeve 1, the elastic ring 2 and the elastic inner sleeve 3 which are made of rubber materials after elastic deformation, meanwhile, the service lives of the elastic outer sleeve 1, the elastic ring 2 and the elastic inner sleeve 3 are prolonged, the first oil seal spring 5 is convenient to install and detach through the first annular groove 8, the first oil seal spring 5 is further convenient to replace respectively to ensure the sealing effect, the second oil seal spring 6 is convenient to install and detach through the second annular groove 9, and the first oil seal spring 5 is further convenient to replace respectively to ensure the dustproof effect.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present utility model can be further combined or replaced by the equivalent embodiment without departing from the scope of the technical solution of the present utility model.

Claims (8)

1. The utility model provides a dustproof oil blanket convenient to dismantle, includes elasticity overcoat (1), its characterized in that, two draw-in grooves (14) of mutual symmetry have been seted up to the outer wall of elasticity overcoat (1), elastic connection area (15) are installed to the inner wall of draw-in groove (14), elastic connection area (15) keep away from the one end of draw-in groove (14) install with easy-open block (16) of draw-in groove (14) looks adaptation, elastic friction piece (17) inconsistent with draw-in groove (14) inner wall are installed to the outer wall of Yi Lakuai (16), cut groove (18) have been seted up to the inner wall of draw-in groove (14).

2. The dustproof oil seal convenient to detach according to claim 1, characterized in that an elastic ring (2) is attached to the inner wall of the elastic outer sleeve (1), an elastic inner sleeve (3) is attached to the inner wall of the elastic ring (2), an oil seal main lip (11) and three oil seal auxiliary lips (4) are integrally formed on the inner wall of the elastic inner sleeve (3), three first oil seal springs (5) are embedded in the outer wall of the elastic inner sleeve (3), the three oil seal auxiliary lips (4) are respectively symmetrical to the three first oil seal springs (5), a second oil seal spring (6) is embedded in the inner top wall of the elastic outer sleeve (1), and a dustproof lip (7) is integrally formed on the inner side wall of the elastic outer sleeve (1).

3. The dustproof oil seal convenient to detach according to claim 2, wherein the elastic outer sleeve (1), the elastic ring (2) and the elastic inner sleeve (3) are made of rubber.

4. A dust seal for easy disassembly according to claim 3, wherein the number of the dust lips (7) is two.

5. The dustproof oil seal convenient to detach according to claim 4, wherein a first annular groove (8) matched with the first oil seal spring (5) is formed in the outer wall of the elastic inner sleeve (3).

6. The dustproof oil seal convenient to detach according to claim 5, wherein a second annular groove (9) matched with the second oil seal spring (6) is formed in the inner top wall of the elastic outer sleeve (1).

7. A dust seal for easy disassembly as claimed in claim 6, wherein the top and bottom of the elastic casing (1) are integrally formed with chamfers (10).

8. The dustproof oil seal convenient to detach according to claim 7, characterized in that a third annular groove (12) is formed in the outer wall of the elastic outer sleeve (1), and a third oil seal spring (13) is integrally formed in the outer wall of the elastic ring (2).