CN216112149U

CN216112149U - Durable O type sealing washer of resistance to compression

Info

Publication number: CN216112149U
Application number: CN202122301510.0U
Authority: CN
Inventors: 陈屿婷
Original assignee: Fujian Quanzhou Nanan Busheng Automobile Parts Co ltd
Current assignee: Fujian Quanzhou Nanan Busheng Automobile Parts Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-22
Anticipated expiration: 2031-09-23

Abstract

The utility model relates to the technical field of O-shaped sealing rings, in particular to a compression-resistant durable O-shaped sealing ring, which is characterized in that: including sealed inner ring and sealed outer loop, be equipped with a plurality of first annular spread grooves along its length direction interval on the sealed inner ring surface, fixed cover is equipped with a plurality of sealed outer loops on the sealed inner ring surface, be equipped with the communicating second annular spread groove with first annular spread groove on the sealed outer ring surface, be fixed with the annular connection piece between first annular spread groove and the corresponding second annular spread groove, inboard all fixed annular enhancement piece that is equipped with between two adjacent sealed outer loops, the outside all fixed annular metal elastic component that is equipped with between two adjacent sealed outer loops, the cross-section of annular metal elastic component is the character cut in bas-relief and is formed with annular groove, the annular groove internal fixation is equipped with annular elastic piece. The utility model has novel integral structure, stable structure, good rebound resilience, better compression resistance and durability, good sealing effect and longer service life.

Description

Durable O type sealing washer of resistance to compression

Technical Field

The utility model relates to the technical field of O-shaped sealing rings, in particular to a compression-resistant durable O-shaped sealing ring.

Background

Compared with other types of sealing rings, the O-shaped sealing ring has the following advantages: 1. is suitable for various sealing forms: static sealing and dynamic sealing are adopted, the sealing device is suitable for various materials, the size and the groove are standardized, and the interchangeability is strong; 2. Is suitable for various motion modes: rotary motion, axial reciprocating motion or combined motion; 3. a variety of different sealing media are suitable: oil, water, gas, chemical media or other mixed media, and realizes the effective sealing effect on the oil, the water, the air, the coal gas and various chemical media by selecting proper rubber materials and proper formula design; 4. the design is simple, the structure is small and exquisite, it is convenient to install and remove, O shape sealing washer section structure is extremely simple, and there is the self sealss effect, sealing performance is reliable, however, some O type sealing washers now, although can satisfy certain sealed demand, but because its simple structure, the function is single, when using, the resistance to compression effect is relatively poor, thereby when leading to receiving the extrusion, easy damage, and receive easy wearing and tearing and can't resume to former sealed position after the extrusion, and lead to easily leaking, its life is shorter, it is not durable, need often to change, can increase the maintenance cost in later stage.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing the pressure-resistant durable O-shaped sealing ring which is novel in integral structure, stable in structure, good in rebound resilience, good in pressure-resistant durability, good in sealing effect and long in service life.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the utility model provides a durable O type sealing washer of resistance to compression, including sealed inner ring and sealed outer loop, be equipped with a plurality of first annular spread grooves along its length direction interval on the sealed inner ring surface, fixed cover is equipped with a plurality of sealed outer loops on the sealed inner ring surface, the quantity of sealed outer loop is unanimous and the one-to-one with the quantity of first annular spread groove, be equipped with the communicating second annular spread groove with first annular spread groove on the sealed outer loop inner surface, fixed ring connection piece that is equipped with between first annular spread groove and the corresponding second annular spread groove, inboard all fixed ring reinforcement piece that is equipped with between two adjacent sealed outer loops, the outside all is fixed ring metal elastic component that is equipped with between two adjacent sealed outer loops, ring metal elastic component's cross-section is the character cut in bas-relief and is formed with annular groove, the annular groove internal fixation is equipped with ring elastic piece.

Furthermore, the inner sealing ring and the outer sealing ring are both made of polytetrafluoroethylene materials.

Furthermore, the annular elastic sheet is made of elastic rubber materials.

Furthermore, the annular connecting sheet and the annular reinforcing sheet are both made of stainless steel sheets.

Further, the number of the sealing outer rings is 2-3.

Furthermore, the inner diameter of the annular elastic piece is larger than that of the annular groove, and the outer diameter of the annular elastic piece is smaller than that of the annular metal elastic piece.

Furthermore, the surfaces of the two ends of the sealing inner ring are fixedly connected with annular wear-resistant lining plates, the outer diameters of the annular wear-resistant lining plates are larger than the outer diameter of the sealing inner ring and not larger than the outer diameter of the sealing outer ring, and the inner diameters of the annular wear-resistant lining plates are smaller than the outer diameter of the sealing inner ring and not smaller than the inner diameter of the sealing inner ring.

Furthermore, the annular wear-resistant lining plate is made of wear-resistant rubber.

Furthermore, a plurality of through holes are uniformly formed in the annular connecting piece in the circumferential direction, a plurality of convex blocks are fixedly arranged on the inner surfaces of two sides of the second annular connecting groove of the sealed outer ring, the number of the convex blocks is consistent with that of the through holes and corresponds to that of the through holes one by one, the convex blocks are embedded in the through holes, an elastic block is further arranged between the two convex blocks in each through hole, and the elastic blocks are made of elastic rubber materials.

Furthermore, the number of the through holes is 4-8.

From the above description, the pressure-resistant durable O-shaped sealing ring provided by the utility model has a novel overall structure, and a plurality of seals can be formed on the outer side of the O-shaped sealing ring through the arrangement of a plurality of seal outer rings, so that the overall sealing effect is effectively ensured; the strength of the overall structure of the O-shaped sealing ring can be effectively ensured through the arrangement of the annular connecting sheet and the annular reinforcing sheet, so that the O-shaped sealing ring is not easy to deform or damage when being extruded, and the overall compression-resistant effect is effectively ensured; through the matching use of the annular metal elastic part and the annular elastic sheet, the overall rebound effect of the outer side of the O-shaped sealing ring can be effectively ensured, the overall deformation of the O-shaped sealing ring can be effectively prevented, and meanwhile, when the surfaces of the two ends of the O-shaped sealing ring are worn, the overall sealing position of the O-shaped sealing ring can be well ensured to be unchanged through the rebound effect of the annular metal elastic part and the annular elastic sheet to the two sides, the leakage can be effectively prevented, and the sealing effect is ensured; the O-shaped sealing ring has a stable integral structure, good pressure resistance and durability, good sealing effect, long service life and no need of frequent replacement, and greatly reduces the later maintenance cost; through the setting of the wear-resisting welt of annular, can further improve the holistic wear-resisting effect of this O type sealing washer to further improve the life of this O type sealing washer, guarantee the durability.

Drawings

Fig. 1 is a schematic perspective view of a pressure-resistant durable O-ring according to the present invention.

Fig. 2 is a schematic view of the internal structure of the pressure-resistant durable O-ring of the present invention.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is an exploded perspective view of a pressure-resistant durable O-ring according to the present invention.

Fig. 5 is a partially enlarged schematic view of a portion B in fig. 4.

Fig. 6 is a partially enlarged schematic view of C in fig. 4.

In the figure: 1-sealing the inner ring; 11-a first annular connecting groove; 2-sealing the outer ring; 21-a second annular connecting groove; 22-a bump; 3-a ring-shaped connecting sheet; 31-a through hole; 4-annular reinforcing sheet; 5-annular metal elastic member; 51-an annular groove; 6-annular elastic sheet; 7-annular wear-resistant lining plate; 8-elastic block.

Detailed Description

The utility model is further described below by means of specific embodiments.

As shown in fig. 1 to 6, the pressure-resistant durable O-ring according to the present invention comprises a sealing inner ring 1 and a sealing outer ring 2, wherein a plurality of first annular connecting grooves 11 are formed on an outer surface of the sealing inner ring 1 at intervals along a length direction thereof, a plurality of sealing outer rings 2 are fixedly sleeved on an outer surface of the sealing inner ring 1, the number of the sealing outer rings 2 is consistent with the number of the first annular connecting grooves 11 and corresponds to the number of the first annular connecting grooves 11, second annular connecting grooves 21 communicated with the first annular connecting grooves 11 are formed on an inner surface of the sealing outer ring 2, an annular connecting piece 3 is fixedly arranged between the first annular connecting grooves 11 and the corresponding second annular connecting grooves 21, an annular reinforcing piece 4 is fixedly arranged on an inner side between two adjacent sealing outer rings 2, and an annular metal elastic piece 5 is fixedly arranged on an outer side between two adjacent sealing outer rings 2, the section of the annular metal elastic piece 5 is concave and is provided with an annular groove 51, and an annular elastic piece 6 is fixedly arranged in the annular groove 51.

Through the arrangement of the sealing outer rings 2, a plurality of seals can be formed on the outer side of the O-shaped sealing ring, so that the integral sealing effect is effectively ensured; through the arrangement of the annular connecting sheet 3 and the annular reinforcing sheet 4, the strength of the overall structure of the O-shaped sealing ring can be effectively ensured, so that the O-shaped sealing ring is not easy to deform or damage when being extruded, and the overall compression-resistant effect of the O-shaped sealing ring is effectively ensured; through the matching use of the annular metal elastic part 5 and the annular elastic sheet 6, the overall rebound effect of the outer side of the O-shaped sealing ring can be effectively ensured, the overall deformation of the O-shaped sealing ring can be effectively prevented, and meanwhile, when the surfaces of the two ends of the O-shaped sealing ring are worn, the sealing position of the overall O-shaped sealing ring can be well ensured to be unchanged through the rebound effect of the annular metal elastic part 5 and the annular elastic sheet 6 to the two sides, the leakage can be effectively prevented, and the sealing effect is ensured; this O type sealing washer overall structure is stable, has better resistance to compression durability, and sealed effectual, and life is longer, need not frequent change, greatly reduced the maintenance cost in later stage.

Preferably, the sealing inner ring 1 and the sealing outer ring 2 are made of polytetrafluoroethylene materials, the annular elastic piece 6 is made of elastic rubber materials, the annular connecting piece 3 and the annular reinforcing piece 4 are made of stainless steel sheets, and the annular metal elastic piece 5 can be made of 65 Mn.

As shown in fig. 1, the number of the seal outer ring 2 is preferably 2-3, so that 2-3 seals can be formed, and the number of the first annular connecting grooves 11 on the corresponding seal inner ring 1 is also 2-3.

As shown in fig. 3, preferably, the inner diameter of the annular elastic piece 6 is larger than the inner diameter of the annular groove 51, and the outer diameter of the annular elastic piece 6 is smaller than the outer diameter of the annular metal elastic member 5.

As shown in fig. 1, fig. 2 and fig. 3, in addition, the both ends surface of the seal inner ring 1 is fixedly connected with the annular wear-resistant lining plate 7, the outer diameter of the annular wear-resistant lining plate 7 is greater than the outer diameter of the seal inner ring 1 and is not greater than the outer diameter of the seal outer ring 2, the inner diameter of the annular wear-resistant lining plate 7 is less than the outer diameter of the seal inner ring 1 and is not less than the inner diameter of the seal inner ring 1, preferably, the annular wear-resistant lining plate 7 is made of wear-resistant rubber, and through the arrangement of the annular wear-resistant lining plate 7, the overall wear-resistant effect of the O-shaped sealing ring can be further improved, so that the service life of the O-shaped sealing ring is further prolonged, and the durability is ensured.

As shown in fig. 3 and 6, in addition, a plurality of through holes 31 are uniformly arranged on the annular connecting piece 3 along the circumferential direction thereof, a plurality of protrusions 22 are fixedly arranged on the inner surfaces of the two sides of the second annular connecting groove 21 of the outer sealing ring 2, the number of the protrusions 22 is consistent with that of the through holes 31 and corresponds to one another, the protrusions 22 are embedded in the through holes 31, an elastic block 8 is further arranged between the two protrusions 22 in the through holes 31, the elastic block 8 is made of an elastic rubber material, by adopting the structure, the protrusions 22 on the outer sealing ring 2 are embedded in the through holes 31 on the annular connecting piece 3, so that the connection stability between the outer sealing ring 2 and the annular connecting piece 3 can be further improved, the stability of the overall structure of the O-shaped sealing ring can be further improved, and in addition, by the arrangement of the elastic blocks 8, can further improve the holistic resilience effect of sealed outer loop 2 further makes sealed outer loop 2 non-deformable to guarantee sealed position, in order to ensure sealed effect.

Preferably, the number of the through holes 31 is 4-8, that is, correspondingly, the number of the protrusions 22 on the inner surfaces of the two sides of the second annular connecting groove 21 is also 4-8.

The above description is only a few specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by the design concept should fall within the scope of the present invention.

Claims

1. The utility model provides a durable O type sealing washer of resistance to compression which characterized in that: comprises a sealing inner ring and a sealing outer ring, a plurality of first annular connecting grooves are arranged on the outer surface of the sealing inner ring at intervals along the length direction of the sealing inner ring, the outer surface of the sealing inner ring is fixedly sleeved with a plurality of sealing outer rings, the number of the sealing outer rings is consistent with that of the first annular connecting grooves and corresponds to that of the first annular connecting grooves one by one, a second annular connecting groove communicated with the first annular connecting groove is arranged on the inner surface of the sealing outer ring, an annular connecting sheet is fixedly arranged between the first annular connecting groove and the corresponding second annular connecting groove, an annular reinforcing sheet is fixedly arranged at the inner side between two adjacent sealing outer rings, an annular metal elastic piece is fixedly arranged at the outer side between two adjacent sealing outer rings, the section of the annular metal elastic part is in a concave shape and is provided with an annular groove, and an annular elastic sheet is fixedly arranged in the annular groove.

2. The O-ring of claim 1, wherein: the sealing inner ring and the sealing outer ring are both made of polytetrafluoroethylene materials.

3. The O-ring of claim 1, wherein: the annular elastic sheet is made of elastic rubber materials.

4. The O-ring of claim 1, wherein: the annular connecting sheet and the annular reinforcing sheet are both made of stainless steel sheets.

5. The O-ring of claim 1, wherein: the number of the sealing outer rings is 2-3.

6. The O-ring of claim 1, wherein: the inner diameter of the annular elastic piece is larger than that of the annular groove, and the outer diameter of the annular elastic piece is smaller than that of the annular metal elastic piece.

7. The O-ring of claim 1, wherein: the surface of the two ends of the sealing inner ring is fixedly connected with annular wear-resistant lining plates, the outer diameters of the annular wear-resistant lining plates are larger than the outer diameter of the sealing inner ring and not larger than the outer diameter of the sealing outer ring, and the inner diameters of the annular wear-resistant lining plates are smaller than the outer diameter of the sealing inner ring and not smaller than the inner diameter of the sealing inner ring.

8. The O-ring of claim 7, wherein: the annular wear-resistant lining plate is made of wear-resistant rubber.

9. The O-ring of claim 1, wherein: evenly be equipped with a plurality of through-holes along its circumferencial direction on the annular connecting piece, sealed outer loop the second annular spread groove both sides internal surface all fixedly is equipped with a plurality of lugs, the quantity of lug with the quantity of through-hole is unanimous and the one-to-one, the lug inlays to be located in the through-hole, in two in the through-hole still be equipped with the elastic block between the lug, the elastic block adopts the preparation of elastic rubber material to form.

10. The O-ring of claim 9, wherein: the number of the through holes is 4-8.