CN213419892U

CN213419892U - High-stability sealing ring

Info

Publication number: CN213419892U
Application number: CN202022130093.3U
Authority: CN
Inventors: 付建明; 吴广斌
Original assignee: Ningbo Jiaodian Sealing Industry Co ltd
Current assignee: Ningbo Jiaodian Sealing Industry Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-06-11
Anticipated expiration: 2030-09-24

Abstract

The utility model relates to a sealing washer of high stability relates to the field of sealing washer, and it includes circle body and elastic tube, the circle body is equipped with the opening, the circle body is cavity setting, the embedded elastic tube that is equipped with of circle body, on the inside wall of elastic tube butt and laminating circle body, the both ends of circle body are equipped with the locking Assembly with circle body both ends sealing connection. The problem of the section of rubber O shape sealing washer be simple circular structure basically, at used repeatedly's in-process, the deformation appears easily in rubber, stability is not high is solved, this application has the elasticity pipe and is elastic material, can provide the outside holding power of circle body all the time, is difficult for receiving the restriction of rubber material, is difficult for can't maintain original form because of tired, has improved the effect of the stability of sealing washer.

Description

High-stability sealing ring

Technical Field

The application relates to the field of sealing rings, in particular to a high-stability sealing ring.

Background

In various mechanical, chemical, metallurgical, and pharmaceutical devices, it is desirable to provide an effective seal between device interfaces in order to prevent leakage of liquids and gases. For this purpose, various sealing rings are generally used as sealing elements.

In the related art, referring to fig. 7, the O-ring is an annular cover composed of one or more parts, and is fixed on one ring or washer of the bearing and contacts with the other ring or washer or forms a narrow labyrinth gap to prevent leakage of lubricating oil and intrusion of foreign objects.

In view of the above-mentioned related art, the inventor believes that the cross section of the rubber O-ring is a simple circular structure, and during the process of repeated use, the rubber is easy to deform and has low stability.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the section of the rubber O-shaped sealing ring is basically a simple circular structure, and in the process of repeated use, rubber is easy to deform and is not high in stability, the application provides a high-stability sealing ring.

The application provides a high stability's sealing washer adopts following technical scheme:

the utility model provides a sealing washer of high stability, includes circle body and elastic tube, the circle body is equipped with the opening, the circle body is cavity setting, the embedded elastic tube that is equipped with of circle body, on the inside wall of elastic tube butt and laminating circle body, the both ends of circle body are equipped with the locking Assembly with circle body both ends sealing connection.

Through adopting above-mentioned technical scheme, the elastic tube is elastic metal material, and structural strength is greater than the rubber material, can provide the outside holding power of circle body all the time, is difficult for receiving the restriction of rubber material, is difficult for can't maintaining original form because of tired, has improved the stability of sealing washer.

Optionally, the locking subassembly is including inserting the post, insert the integrative one end of locating the circle body of post, insert the post and set up along the length direction of circle body, the other end of circle body is equipped with the confession and inserts post male slot, insert the inside wall interference fit of post and slot.

By adopting the technical scheme, the inserting columns are inserted into the inserting grooves, so that the two ends of the ring body are sealed, the original shape of the ring body is ensured to be continuously applied to the original environment, the effect of the sealing ring is not easily influenced by the disconnection of the two ends of the ring body, and the stability of the sealing ring is improved.

Optionally, the locking assembly further comprises a convex ball integrally arranged at one end of the insertion column far away from the ring body, and a clamping groove for clamping and embedding the convex ball is arranged at the bottom of the slot.

Through adopting above-mentioned technical scheme, the pompon is inserted in the draw-in groove, is difficult for breaking away from in the draw-in groove for it is difficult for breaking away from in the slot to insert the post, has improved the locking ability of locking Assembly.

Optionally, a plurality of reinforcing ribs are integrally arranged on the inner side wall of the elastic pipe, and two ends of each reinforcing rib are fixedly connected with the inner side wall of the elastic pipe.

Through adopting above-mentioned technical scheme, the structural strength of elasticity pipe has been strengthened in the setting of strengthening rib to the structural strength of circle body has been strengthened, makes the difficult unable original form that resumes because of external extrusion of circle body, has improved the stability of sealing washer.

Optionally, one end of the elastic tube is closed, and the other end of the elastic tube is in threaded connection with a one-way valve.

Through adopting above-mentioned technical scheme, the one end of elasticity pipe is sealed, and other end threaded connection has the check valve for gas can get into in the elasticity pipe through the check valve and be difficult for following the intraductal loss of elasticity, has strengthened the structural strength of elasticity pipe, thereby has strengthened the structural strength of circle body, has improved the stability of sealing washer.

Optionally, the check valve includes the valve body, inlays piston ball and compression spring of locating in the valve body, valve body threaded connection is in the one end of elasticity pipe, the one end that the elasticity pipe was kept away from to the valve body is equipped with the inlet port, be equipped with in the valve body and inlay and establish the groove, it is equipped with the air vent to inlay the tank bottom of establishing the groove, the air vent communicates with the inner chamber of elasticity pipe mutually, still be equipped with the round platform face in the valve body, the both ends of round platform face communicate with the inlet port and inlay the groove of establishing mutually respectively, the round platform face is degressive from inlaying the direction of establishing groove to inlet port and sets up, compression spring inlays to locate to inlay and establishes inslot and one end and inlay the tank bottom butt of establishing the groove, piston ball and compression.

By adopting the technical scheme, when the air is inflated, the air pressure in the air inlet hole is greater than the air pressure in the embedding groove so as to drive the piston ball to be separated from the round table surface, and the air sequentially enters the elastic tube through the gap between the piston ball and the round table surface and the embedding groove; when the air is not inflated, the internal air pressure is greater than the external air pressure, and the piston ball is propped against the round table surface to realize sealing, so that the air in the elastic tube is not easy to leak, and the air-tight elastic tube is simple in structure and convenient to use.

Optionally, the elastic tube is internally filled with nitrogen gas.

By adopting the technical scheme, the nitrogen is extremely inactive in chemical property, not easy to expand with heat and contract with cold, small in deformation amplitude and stable in air pressure, so that the sealing ring is good in stability and long in service life.

Optionally, an annular groove is formed in the inner side of the outer side wall of the ring body.

Through adopting above-mentioned technical scheme, the setting of ring channel for the partly that the mechanical part that the cover was established can enter into the ring channel, thereby makes zonulae occludens between mechanical part and the sealing washer body, has improved the sealed effect of sealing washer.

Optionally, a polytetrafluoroethylene coating is arranged on the outer side wall of the ring body.

By adopting the technical scheme, the polytetrafluoroethylene coating has higher mechanical property, is not easy to deform due to friction or corrosion, improves the structural strength of the ring body, and increases the stability of the sealing ring.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the elastic tube is made of elastic materials, can always provide outward supporting force for the ring body, is not easily limited by rubber materials, is not easy to maintain the original shape due to fatigue, and improves the stability of the sealing ring;

2. the arrangement of the reinforcing ribs enhances the structural strength of the elastic tube, so that the structural strength of the ring body is enhanced, the ring body is not easy to restore the original shape due to external extrusion, and the stability of the sealing ring is improved;

3. the polytetrafluoroethylene coating has high mechanical property, is not easy to deform due to friction or corrosion, improves the structural strength of the ring body, and increases the stability of the sealing ring.

Drawings

Fig. 1 is a schematic structural diagram of a high-stability seal ring in an embodiment of the present application.

Fig. 2 is a top view of a high stability seal ring in an embodiment of the present application.

Fig. 3 is a sectional view taken along the line a-a in fig. 2.

Fig. 4 is a side view of a high stability seal ring in an embodiment of the present application.

Fig. 5 is a sectional view taken along line B-B in fig. 4.

Fig. 6 is an enlarged schematic view of the portion C in fig. 5.

Fig. 7 is a schematic structural view of a seal ring in the related art.

Description of reference numerals: 1. a loop body; 11. a slot; 12. a card slot; 13. an annular groove; 2. an elastic tube; 21. reinforcing ribs; 3. a one-way valve; 31. a valve body; 311. an air inlet; 312. embedding a groove; 313. a vent hole; 314. a circular table top; 32. a piston ball; 33. a compression spring; 4. a locking assembly; 41. inserting a column; 42. and (4) convex balls.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses sealing washer of high stability. Referring to fig. 1 and 3, the high-stability sealing ring includes a ring body 1 and an elastic tube 2, the ring body 1 is provided with an opening to disconnect the ring body 1, the ring body 1 is hollow, the elastic tube 2 is embedded in the ring body 1, the cross section of the elastic tube 2 is circular, the outer side wall of the elastic tube 2 is abutted and attached to the inner side wall of the ring body 1, and the ring body 1 is supported to maintain the shape of the ring body 1.

Still an organic whole is equipped with a plurality of strengthening ribs 21 on the inside wall of elastic tube 2, and the quantity of strengthening rib 21 is three, and three strengthening rib 21 sets up in the crisscross way, and on elastic tube 2's inside wall was located respectively to every strengthening rib 21's both ends are integrative to strengthen the structural strength of circle body 1.

The ring body 1 is provided with a ring groove 13 on the inner side of the outer side wall, and the ring groove 13 and the ring body 1 are concentrically arranged, so that the ring body can be conveniently matched with other mechanical structures when being sleeved with the ring body.

The outer side wall of the ring body 1 is also coated with a polytetrafluoroethylene coating, so that the structural strength of the ring body 1 is enhanced.

Referring to fig. 5, locking assemblies 4 for hermetically connecting both ends of the ring body 1 are installed at both ends of the ring body 1.

Locking Assembly 4 is including inserting post 41 and protruding ball 42, and the integrative length direction who locates the one end of circle body 1 and circle body 1 of inserting post 41 sets up, and slot 11 has been seted up to the other end of circle body 1, insert post 41 insert in slot 11 and with slot 11's inside wall interference fit, the laminating of the both ends wall of circle body 1 for the both ends of circle body 1 are fixed.

The protruding ball 42 is integrally arranged at one end of the inserting column 41 far away from the ring body 1, the groove bottom of the inserting groove 11 is provided with a clamping groove 12, the inserting column 41 is inserted into the inserting groove 11, the protruding ball 42 penetrates through the inserting groove 11 and then is clamped and embedded in the clamping groove 12, and the two ends of the ring body 1 are further fixed.

Referring to fig. 6, one end of the elastic tube 2 is closed, the other end of the elastic tube 2 is connected with the check valve 3 in a threaded manner, the check valve 3 comprises a valve body 31, a piston ball 32 and a compression spring 33, the valve body 31 is connected to one end of the elastic tube 2 in a threaded manner, one end of the valve body 31, which is far away from the elastic tube 2, is provided with an air inlet 311, one end of the valve body 31, which is close to the elastic tube 2, is provided with an embedding groove 312, the bottom of the embedding groove 312 is further provided with an air vent 313, the air vent 313 is communicated with the inside of the elastic tube 2, the valve body 31 is further provided with a circular table surface 314, the circular table surface 314 is located between the air inlet 311 and the embedding groove 312, two ends of the circular table surface 314 are respectively communicated; the piston ball 32 and the compression spring 33 are arranged in the embedding groove 312, one end of the compression spring 33 is abutted against the bottom of the embedding groove 312, the other end of the compression spring 33 is abutted against the piston ball 32, the piston ball 32 is preferably made of rubber and is arranged in a spherical shape, the piston ball 32 is abutted against the side wall of the round table surface 314, when the air is inflated, the air pressure in the air inlet hole 311 is larger than the air pressure in the embedding groove 312 so as to drive the piston ball 32 to be separated from the round table surface 314, and the air enters the elastic tube 2 through the gap between the piston ball 32 and the round table surface 314 and the embedding groove 312 in sequence; when the air is not inflated, the internal air pressure is greater than the external air pressure, and the piston ball 32 abuts against the circular table surface 314 to realize sealing, so that the air in the elastic tube 2 is not easy to leak.

The nitrogen gas is filled into the elastic tube 2 from one side of the one-way valve 3, so that the stability of the sealing ring is enhanced.

The implementation principle of the sealing ring with high stability in the embodiment of the application is as follows: inserting the elastic tube 2 with the reinforcing ribs 21 into the inner side of the ring body 1 from one end of the ring body 1, connecting the one-way valve 3 in the elastic tube 2 in a threaded manner, then filling nitrogen into the one-way valve 3, so that the elastic tube 2 is filled with the nitrogen, inserting the inserting column 41 into the inserting slot 11, and clamping and embedding the convex balls 42 into the clamping slot 12 to finish installation.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a sealing washer of high stability which characterized in that: including circle body (1) and elastic tube (2), circle body (1) is equipped with the opening, circle body (1) is the cavity setting, the embedded elastic tube (2) that is equipped with of circle body (1), on the inside wall of elastic tube (2) butt and laminating circle body (1), the both ends of circle body (1) are equipped with locking Assembly (4) with circle body (1) both ends sealing connection.

2. A high stability seal ring according to claim 1, wherein: locking Assembly (4) are including inserting post (41), insert a post (41) an organic whole and locate the one end of circle body (1), insert post (41) along the length direction setting of circle body (1), the other end of circle body (1) is equipped with and supplies to insert post (41) male slot (11), insert the inside wall interference fit of post (41) and slot (11).

3. A high stability seal ring according to claim 2, wherein: the locking assembly (4) further comprises a convex ball (42) which is integrally arranged at one end of the inserting column (41) far away from the ring body (1), and a clamping groove (12) for clamping and embedding the convex ball (42) is formed in the bottom of the slot (11).

4. A high stability seal ring according to claim 1, wherein: a plurality of reinforcing ribs (21) are integrally arranged on the inner side wall of the elastic pipe (2), and two ends of each reinforcing rib (21) are fixedly connected with the inner side wall of the elastic pipe (2).

5. A high stability seal ring according to claim 1, wherein: one end of the elastic tube (2) is closed, and the other end of the elastic tube (2) is in threaded connection with a one-way valve (3).

6. A high stability seal ring according to claim 5, wherein: the check valve (3) comprises a valve body (31), a piston ball (32) and a compression spring (33) which are embedded in the valve body (31), the valve body (31) is in threaded connection with one end of the elastic pipe (2), one end, far away from the elastic pipe (2), of the valve body (31) is provided with an air inlet hole (311), the valve body (31) is internally provided with an embedded groove (312), the bottom of the embedded groove (312) is provided with an air vent (313), the air vent (313) is communicated with the inner cavity of the elastic pipe (2), the valve body (31) is also internally provided with a round table surface (314), two ends of the round table surface (314) are respectively communicated with the air inlet hole (311) and the embedded groove (312), the round table surface (314) is gradually decreased from the direction of the embedded groove (312) to the air inlet hole (311), the compression spring (33) is embedded in the embedded groove (312) and one end of the compression spring is abutted to the bottom of the embedded groove (312), the piston ball (32) abuts against the other end of the compression spring (33) and abuts against the circular table surface (314).

7. A high stability seal ring according to claim 1, wherein: the elastic tube (2) is filled with nitrogen.

8. A high stability seal ring according to claim 1, wherein: and an annular groove (13) is formed in the inner side of the outer side wall of the ring body (1).