CN213176794U - Stainless steel embedded rubber sealing ring - Google Patents
Stainless steel embedded rubber sealing ring Download PDFInfo
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- CN213176794U CN213176794U CN202022165982.3U CN202022165982U CN213176794U CN 213176794 U CN213176794 U CN 213176794U CN 202022165982 U CN202022165982 U CN 202022165982U CN 213176794 U CN213176794 U CN 213176794U
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Abstract
The utility model relates to an embedded rubber seal of stainless steel has that the cross-section is L type and opening annular skeleton inwards and the cladding is in seal on the annular skeleton, the seal is close to annular skeleton rotation axis one side has the seal lip oral area, annular skeleton material is stainless steel, seal lip oral area includes main seal lip, first vice seal lip and the vice seal lip of second, main seal lip, first vice seal lip and the vice seal lip of second set gradually by supreme down, main seal lip cross-section is to the triangle-shaped that annular skeleton rotation axis extends, first vice seal lip and the vice seal lip cross-section of second are the strip that extends in the slant respectively, the minimum internal diameter of first vice seal lip and the vice seal lip of second is less than the minimum internal diameter of main seal lip, this embedded rubber seal of stainless steel, rational in infrastructure, High mechanical strength and good sealing effect.
Description
The technical field is as follows:
the utility model relates to a sealing washer technical field especially relates to an embedded rubber seal of stainless steel.
Background art:
the stirring cup is food processing equipment with a stirring knife assembly added at the bottom of the cup body, such as a juice extractor, an ice crusher, a meat chopper and the like, is widely applied in the field of food processing, and a knife shaft arranged at the bottom of the cup body rotates at a high speed when the stirring cup operates, so that a sealing ring arranged between the knife shaft and the cup bottom is required to have high mechanical strength and good sealing effect.
In the existing stirring cup, a sealing ring adopted between a cutter shaft and a cup bottom is generally made of pure rubber materials and is easy to deform, so that a good sealing effect cannot be achieved.
The utility model has the following contents:
the utility model aims at the defect of prior art, provide a rational in infrastructure, mechanical strength is high, sealed effectual embedded rubber seal of stainless steel.
The utility model discloses a realize through following technical scheme:
the stainless steel embedded rubber sealing ring is provided with an annular framework with an inward opening and a sealing body coated on the annular framework, wherein the cross section of the annular framework is L-shaped, the sealing body is made of rubber, and a sealing lip opening is formed in one side, close to a rotating shaft of the annular framework, of the sealing body.
In order to improve the strength and the toughness of the sealing ring and avoid the deformation and the air leakage of the sealing ring caused by insufficient strength, the annular framework is made of stainless steel, and the annular framework is close to one end of the rotating shaft of the annular framework and is obliquely bent downwards to form an extending part.
It should be noted that, the sealing ring seal belongs to an extrusion elastomer seal, and is pre-extruded by the sealing ring, and the pre-tightening force is generated by elastic deformation, and the sealing ring is also extruded by the pressure of the working medium, so that a self-tightening force is generated, that is, the extrusion elastomer seal belongs to a self-tightening seal.
The sealing ring generates contact pressure under the action of medium pressure P1 as follows: pc is the total contact pressure under the medium pressure, Pco is the initial pressure of the sealing ring, called the pre-contact pressure, Δ Pc is the contact pressure of the medium pressure transmitted to the contact surface through the sealing ring, called the medium acting pressure, Δ Pc is Kp1, where K is the lateral pressure coefficient, K is u/(1-u), K is 0.9-0.985 for the rubber sealing member, u is the poisson ratio of the sealing ring material, u is 0.48-0.496 for the rubber member, and u is 0.305 for the stainless steel material, so that the total contact pressure of the sealing ring is obviously less than the pressure of the pure rubber material after the stainless steel frame is embedded under the same external environment, and the relative stress deformation is much less.
In order to optimize the sealing ring structure, make it reach the best sealed effect, sealing lip mouth portion includes the vice sealing lip of main sealing lip, first vice sealing lip and second, the vice sealing lip of main sealing lip, first vice sealing lip and second is coaxial setting in proper order by supreme down, main sealing lip with first vice sealing lip passes through the straight flange transition, main sealing lip cross-section be to the triangle-shaped that cyclic annular skeleton rotation axis extends, first vice sealing lip and the vice sealing lip cross-section of second are the strip that extends in the slant respectively, the minimum internal diameter of first vice sealing lip and the vice sealing lip of second is less than the minimum internal diameter of main sealing lip.
In order to improve the sealing effect of the sealing ring, preferably, the first auxiliary sealing lip and the second auxiliary sealing lip are transited through an arc, and the first auxiliary sealing lip and the second auxiliary sealing lip are arranged in parallel.
In order to improve the assembly and use reliability of the sealing ring, a plurality of anti-skidding bulges are uniformly distributed on the outer circle of the sealing ring, so that the sealing effect of the sealing ring is prevented from being influenced by the displacement of the sealing ring when the machine vibrates.
Preferably, the thickness of the annular skeleton is 0.8mm, and annular skeletons of other sizes may be designed according to actual conditions.
The utility model has the advantages that: according to the stainless steel embedded rubber sealing ring, the sealing ring made of pure rubber materials between the rotating shaft and the cup bottom of the stirring cup is improved into a structure of a stainless steel framework and a rubber sealing body, so that the strength and toughness of the sealing ring are greatly improved, the service life of the sealing ring in a machine rotating at high speed such as the stirring cup is prolonged, and the sealing effect is ensured; through designing three seal lips, further promoted sealed effect, in addition, this embedded rubber seal of stainless steel, rational in infrastructure, the reliability is high.
Drawings
Fig. 1 is a schematic structural view of the stainless steel embedded rubber sealing ring of the present invention.
The specific implementation mode is as follows:
the following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.
As shown in fig. 1, the stainless steel embedded rubber sealing ring has an annular framework 1 with an inward opening and a 0.8mm thickness and a coating on the annular framework 1, wherein the section of the annular framework 1 is in an L shape, the annular framework 1 is made of stainless steel, the sealing body 2 is made of rubber, a plurality of anti-skid protrusions 3 are uniformly distributed on the outer circle of the sealing body 2, the annular framework 1 is close to one end of a rotating shaft of the annular framework 1 is obliquely bent downwards to form an extending part 11, and the sealing body 2 is close to one side of the rotating shaft of the annular framework 1 and is provided with a sealing lip opening part 21.
The seal lip mouth part 21 includes main seal lip 211, first vice seal lip 212 and the vice seal lip 213 of second, main seal lip 211, first vice seal lip 212 and the vice seal lip 213 of second are by lower supreme coaxial setting in proper order, main seal lip 211 with first vice seal lip 212 passes through the straight flange transition, main seal lip 211 cross-section is to the triangle-shaped of cyclic annular skeleton 1 rotation axis extension, first vice seal lip 212 and the vice seal lip 213 cross-section of second are the strip that extends in the slant respectively, first vice seal lip 212 with the vice seal lip 213 of second passes through the circular arc transition, just first vice seal lip 212 and the vice seal lip 213 parallel arrangement of second, the minimum internal diameter of first vice seal lip 212 and the vice seal lip 213 of second is less than the minimum internal diameter of main seal lip 211.
When the stainless steel embedded rubber sealing ring is manufactured, the annular framework 1 of the sealing ring is molded with the sealing body 2 in an embedded mode, the shape of the stainless steel annular framework 1 is added to the cavity of an injection mold, the annular framework 1 is placed into the mold firstly during injection molding, then the mold is closed and injection molding is conducted, and the annular framework 1 and the rubber sealing body 2 are fully fused together. It is worth noting that the wall thickness of the rubber is required to be ensured within the range of 1mm, the glue flow distribution is uniform during injection molding, and the product precision and the production efficiency can be ensured.
During the use, with the embedded rubber seal of this stainless steel pressure equipment into stirring cup bottom corresponding downthehole, then insert components such as arbor, accomplish whole cup bottom installation, when stirring cup operation, the arbor subassembly is high-speed rotatory, because the effect of the cyclic annular skeleton 1 of stainless steel for whole sealing washer is difficult for producing the deformation, and main seal lip 211, first pair seal lip 212 and the vice seal lip 213 of second can guarantee the dynamic seal effect of sealing washer when the arbor subassembly is rotatory at high speed, avoid leaking gas.
The above-mentioned embodiments only represent one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (4)
1. The utility model provides an embedded rubber seal of stainless steel, has that the cross-section is cyclic annular skeleton (1) and the cladding that L type and opening are inwards seal (2) on cyclic annular skeleton (1), seal (2) material is rubber, seal (2) are close to cyclic annular skeleton (1) rotation axis one side has seal lip oral area (21), its characterized in that: the annular framework (1) is made of stainless steel, one end of the annular framework (1) close to a rotating shaft of the annular framework (1) is obliquely bent downwards to form an extending part (11), the seal lip portion (21) comprises a main seal lip (211), a first auxiliary seal lip (212) and a second auxiliary seal lip (213), the main sealing lip (211), the first auxiliary sealing lip (212) and the second auxiliary sealing lip (213) are coaxially arranged from bottom to top in sequence, the main sealing lip (211) and the first auxiliary sealing lip (212) are transited through straight edges, the section of the main sealing lip (211) is in a triangle shape extending towards the rotating shaft of the annular framework (1), the sections of the first auxiliary sealing lip (212) and the second auxiliary sealing lip (213) are respectively in a strip shape extending obliquely upwards, the minimum inner diameter of the first auxiliary sealing lip (212) and the second auxiliary sealing lip (213) is smaller than the minimum inner diameter of the main sealing lip (211).
2. The stainless steel embedded rubber seal ring of claim 1, wherein: the first auxiliary sealing lip (212) and the second auxiliary sealing lip (213) are transited through a circular arc, and the first auxiliary sealing lip (212) and the second auxiliary sealing lip (213) are arranged in parallel.
3. The stainless steel embedded rubber seal ring of claim 1, wherein: a plurality of anti-skid protrusions (3) are uniformly distributed on the outer circle of the sealing body (2).
4. The stainless steel embedded rubber seal ring of claim 1, wherein: the thickness of the annular framework (1) is 0.8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022165982.3U CN213176794U (en) | 2020-09-27 | 2020-09-27 | Stainless steel embedded rubber sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022165982.3U CN213176794U (en) | 2020-09-27 | 2020-09-27 | Stainless steel embedded rubber sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213176794U true CN213176794U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022165982.3U Active CN213176794U (en) | 2020-09-27 | 2020-09-27 | Stainless steel embedded rubber sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213176794U (en) |
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2020
- 2020-09-27 CN CN202022165982.3U patent/CN213176794U/en active Active
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