Oil-resistant anti-tear rubber sealing element

Abstract

The utility model relates to the technical field of rubber sealing elements, in particular to an oil-resistant and anti-tear rubber sealing element which comprises a first oil-resistant layer, a first buffer layer is tightly attached to the upper inner wall of a first mounting groove, an anti-tear layer is arranged in a second mounting groove, a second buffer layer is arranged on the lower surface of the anti-tear layer, and a second oil-resistant layer is arranged on the lower surface of the second buffer layer. A second oil-resistant layer and an adsorption layer are arranged on the lower surface of the second buffer layer, a plurality of reinforcing ribs are annularly arranged on the circumferential surface of the first oil-resistant layer, and an oil-proof edge is annularly arranged on the circumferential surface of the first oil-resistant layer. The adsorption layer is made of a silicon rubber material and is arranged on the inner wall of the second oil-resistant layer, oil stains can be blocked by the first oil-resistant layer and the second oil-resistant layer, and the adsorption layer only adsorbs part of the oil stains leaked from the inner wall of the fixed rod piece, so that the last barrier effect of blocking the oil stains is achieved; and the arranged anti-tearing layer is made of a metal wire mesh material, so that the overall tearing resistance of the rubber sealing element is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber sealing technical field especially relates to an oil -resistant tear -resistant rubber sealing element. BACKGROUND

[0002] The rubber sealing element is generally used for preventing leakage by using circular rubber products, and natural rubber has physical properties, such as high elasticity at normal temperature, slight plasticity, very good mechanical strength, small hysteresis loss, low heat generation during multiple deformations, and good resistance to flexing.

[0003] For example, the rubber pad with oil resistance function with the authorization announcement number "CN218152177U" can adsorb the stains generated during the use of the rubber pad, so that the environment of the rubber pad is kept clean to a certain extent, and the practicality of the rubber pad is indirectly improved.

[0004] The above and prior art has the following defects: the adsorption layer of the rubber pad is made of silicone rubber, which can adsorb oil stains during use, but the sealing performance of the silicone rubber will be poor after adsorbing saturated oil stains; the rubber pad does not have a tear-resistant measure, and has poor tear resistance. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the defects in the prior art and provides an oil -resistant tear -resistant rubber sealing element.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] An oil -resistant tear -resistant rubber sealing element is designed, which comprises a first oil -resistant layer, a first installation groove is arranged on the lower surface of the first oil -resistant layer, the inner wall of the first installation groove is upwardly convex and arc-shaped, a first buffer layer is closely attached to the inner wall of the first installation groove, a second installation groove is arranged on the lower surface of the first buffer layer, a tear -resistant layer is arranged in the second installation groove, a second buffer layer is arranged on the lower surface of the tear -resistant layer, a second oil -resistant layer and an adsorption layer are arranged on the lower surface of the second buffer layer, the second oil -resistant layer is arranged on the outer wall of the adsorption layer, a plurality of reinforcing ribs are arranged on the circumferential surface of the first oil -resistant layer, and an oil -proof edge is arranged on the circumferential surface of the first oil -resistant layer.

[0008] Preferably, a plurality of annular first closely attached grooves are arranged on the inner wall of the first installation groove, a plurality of annular first protrusions are arranged on the upper surface of the first buffer layer, and the plurality of first closely attached grooves and the plurality of first protrusions one -to -one correspond and match.

[0009] Preferably, an oil -dripping groove is arranged on the lower surface of the oil -proof edge.

[0010] Preferably, the oil-proof edge upper surface is arranged from inside to outside and downwardly inclined.

[0011] Preferably, the second buffer layer lower surface is provided with a plurality of second close-fitting grooves and a plurality of third close-fitting grooves, the second oil-resistant layer upper surface is provided with a plurality of second protrusions corresponding to the second close-fitting grooves, the second close-fitting grooves are matched with the second protrusions, and the adsorption layer upper surface is provided with a plurality of third protrusions corresponding to the third close-fitting grooves, the third close-fitting grooves are matched with the third protrusions.

[0012] Preferably, the second oil-resistant layer and the adsorption layer lower surfaces are each provided with a plurality of anti-skid grooves.

[0013] The oil stain can be blocked by the first oil-resistant layer and the second oil-resistant layer, so that the oil stain cannot be in the state of being adsorbed all the time, and the sealing performance of the adsorption layer can be prevented from being deteriorated after the adsorption layer is saturated with the adsorbed oil stain; the adsorption layer can only adsorb part of the leaked oil stain in the inner wall of the fixed rod, or adsorb the oil stain when the first oil-resistant layer and the second oil-resistant layer fail, so as to play a role of the last barrier for blocking the oil stain; the tear-resistant layer is made of metal wire mesh material, so that the overall tear resistance of the rubber sealing element is stronger, the reinforcing ribs are arranged, so that the compression resistance of the rubber sealing element is stronger; and the oil-proof edge is arranged to prevent oil from directly falling on the second buffer layer and play a role of oil isolation. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 FIG. 1 is a structural schematic view of the utility model;

[0015] Fig. 2 FIG. 2 is a structural sectional view of the utility model.

[0016] In the figure: the first oil-resistant layer 1, the first mounting groove 2, the first buffer layer 3, the second mounting groove 4, the tear-resistant layer 5, the second buffer layer 6, the second oil-resistant layer 7, the adsorption layer 8, the reinforcing rib 9, the oil-proof edge 10, the first close-fitting groove 11, the first protrusion 12, the oil dripping groove 13, the second close-fitting groove 14, the second protrusion 15, the third close-fitting groove 16, and the third protrusion 17. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0018] Reference Figs. 1-2The utility model provides an oil -resistant tear -resistant rubber seal, including first oil -resistant layer 1, first oil -resistant layer 1 lower surface is equipped with first installation groove 2, and the inner wall of first installation groove 2 is the arc of upward protruding, and the arc of upward protruding can make the oil -resistant tear -resistant rubber seal more strong. The inner wall of first installation groove 2 is closely fitted with first buffer layer 3, and the lower surface of first buffer layer 3 is equipped with second installation groove 4, and the inside of second installation groove 4 is equipped with tear -resistant layer 5, and the tear -resistant layer 5 is set up metal wire screen material, can make the tear -resistant of the whole rubber seal more strong. The lower surface of tear -resistant layer 5 is equipped with second buffer layer 6, and first buffer layer 3 and second buffer layer 6 adopt butadiene rubber material, and butadiene rubber material has good elasticity. The lower surface of second buffer layer 6 is equipped with second oil -resistant layer 7 and adsorption layer 8, and first oil -resistant layer 1 and second oil -resistant layer 7 adopt nitrile rubber material, and nitrile rubber material has good oil -resistant characteristics. Second oil -resistant layer 7 is set up on the outer wall of adsorption layer 8, and the adsorption layer 8 is set up on the inner wall of second oil -resistant layer 7, and the oil stain is blocked by first oil -resistant layer 1 and second oil -resistant layer 7, so that it will not be in the state of adsorbing oil stain, to prevent the sealing property of adsorption layer 8 from being poor after adsorbing oil stain saturation;The adsorption layer 8 only adsorbs the part of oil stain leaked in the inner wall of fixed rod, or when first oil -resistant layer 1 and second oil -resistant layer 7 fail, adsorbs oil stain again, and plays the role of the last barrier of blocking oil stain. The circumferential surface of first oil -resistant layer 1 is annularly equipped with a plurality of reinforcing ribs 9, which can make the rubber seal more strong. The circumferential surface of first oil -resistant layer 1 is annularly equipped with an oil -resistant edge 10, which can prevent oil from directly falling onto the second buffer layer 6 and play the role of oil isolation.

[0019] The inner wall of first installation groove 2 is equipped with a plurality of annular first closely fitted grooves 11, and the upper surface of first buffer layer 3 is equipped with a plurality of annular first protrusions 12, and the plurality of first closely fitted grooves 11 and the plurality of first protrusions 12 one-to-one correspond and match. The first protrusion 12 is set up and extends into the first closely fitted groove 11, which plays the role of closely fitting the first oil -resistant layer 1 and the first buffer layer 3, and also plays the role of reinforcing the first buffer layer 3.

[0020] The lower surface of oil -resistant edge 10 is annularly equipped with oil -dropping groove 13, and the upper surface of oil -resistant edge 10 is set up from inside to outside and downwardly inclined. Oil slides from the oil -resistant edge 10, then slides onto the oil -dropping groove 13, and then drops from the oil -dropping groove 13, which plays the role of oil isolation.

[0021] The lower surface of the second buffer layer 6 is provided with a plurality of second close-fitting grooves 14 and a plurality of third close-fitting grooves 16, and the upper surface of the second oil-resistant layer 7 is provided with a plurality of second protrusions 15 corresponding to the second close-fitting grooves 14 one by one, the second close-fitting grooves 14 and the second protrusions 15 are matched, the second protrusions 15 are arranged to extend into the second close-fitting grooves 14, and the second buffer layer 6 and the second oil-resistant layer 7 are closely fitted, and the second oil-resistant layer 7 is also reinforced. The upper surface of the adsorption layer 8 is provided with a plurality of third protrusions 17 corresponding to the third close-fitting grooves 16 one by one, the third close-fitting grooves 16 and the third protrusions 17 are matched, the third protrusions 17 are arranged to extend into the third close-fitting grooves 16, and the second buffer layer 6 and the adsorption layer 8 are closely fitted, and the adsorption layer 8 is also reinforced.

[0022] The lower surfaces of the second oil-resistant layer 7 and the adsorption layer 8 are provided with a plurality of anti-skid grooves. The anti-skid grooves are arranged to increase the anti-skid properties of the second oil-resistant layer 7 and the adsorption layer 8.

[0023] Working principle: the second oil-resistant layer 7 and the adsorption layer 8 are compressed, the first buffer layer 3 and the second buffer layer 6 are elastic, the side edges of the first oil-resistant layer 1 are in contact with the fasteners, so that the oil stains are prevented from entering from the side edges, and the first buffer layer 3 and the second buffer layer 6 are elastic, so that the rubber sealing element is sealed more tightly.

[0024] The above describes only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.

Claims

1. An oil resistant, tear resistant rubber seal comprising a first oil resistant layer (1), characterized in that, The lower surface of the first oil-resistant layer (1) is provided with a first mounting groove (2), the inner wall of the first mounting groove (2) is an upwardly convex arc, the first mounting groove (2) is tightly fitted with a first buffer layer (3), the lower surface of the first buffer layer (3) is provided with a second mounting groove (4), the second mounting groove (4) is internally provided with a tear-resistant layer (5), the lower surface of the tear-resistant layer (5) is provided with a second buffer layer (6), the lower surface of the second buffer layer (6) is provided with a second oil-resistant layer (7) and an adsorption layer (8), the second oil-resistant layer (7) is arranged on the outer wall of the adsorption layer (8), the circumferential surface of the first oil-resistant layer (1) is annularly provided with a plurality of reinforcing ribs (9), and the circumferential surface of the first oil-resistant layer (1) is annularly provided with an oil-proof edge (10).

2. An oil resistant, tear resistant, rubber seal according to claim 1, wherein, The inner wall of the first mounting groove (2) is provided with a plurality of annular first tight fitting grooves (11), and the upper surface of the first buffer layer (3) is provided with a plurality of annular first protrusions (12), the first tight fitting grooves (11) and the first protrusions (12) one-to-one correspond and match.

3. An oil resistant, tear resistant, rubber seal according to claim 1, wherein, The lower surface of the oil-proof edge (10) is annularly provided with an oil dripping groove (13).

4. An oil resistant, tear resistant, rubber seal according to claim 3, wherein, The upper surface of the oil-proof edge (10) is inclined downward from inside to outside.

5. The oil resistant, tear resistant, rubber seal of claim 1, wherein, The lower surface of the second buffer layer (6) is provided with a plurality of second tight fitting grooves (14) and a plurality of third tight fitting grooves (16), the upper surface of the second oil-resistant layer (7) has a plurality of second protrusions (15) corresponding to the second tight fitting grooves (14) one-to-one, the second tight fitting grooves (14) and the second protrusions (15) match, the upper surface of the adsorption layer (8) has a plurality of third protrusions (17) corresponding to the third tight fitting grooves (16) one-to-one, and the third tight fitting grooves (16) and the third protrusions (17) match.

6. An oil resistant, tear resistant, rubber seal according to claim 1, wherein, The lower surfaces of the second oil-resistant layer (7) and the adsorption layer (8) are both provided with a plurality of anti-skid grooves.

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