CN216789401U

CN216789401U - Rubber valve seat with high sealing effect

Info

Publication number: CN216789401U
Application number: CN202220066017.7U
Authority: CN
Inventors: 陆丰
Original assignee: Suzhou Meilong Rubber & Plastic Products Co ltd
Current assignee: Suzhou Meilong Rubber & Plastic Products Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-06-21
Anticipated expiration: 2032-01-12

Abstract

The utility model discloses a rubber valve seat with a high sealing effect, which comprises a valve seat main body, a stop ring and a sealing element arranged on the inner side of the valve seat main body, wherein the inner side of the upper end of the valve seat main body is provided with a mounting groove, the inner wall of the mounting groove of the valve seat main body is provided with a plurality of parallel laminated gear rings, the sealing element is arranged in the mounting groove of the valve seat main body, the outer wall of the sealing element is provided with a tooth socket corresponding to the gear rings, the upper end of the sealing element is provided with a plurality of first jacks, the upper end face of the sealing element is fixedly provided with a connecting piece, the connecting piece is integrally provided with a plurality of second jacks corresponding to the first jacks, the stop ring is arranged on the upper end of the valve seat main body and is connected with the valve seat main body through bolts, and the lower surface of the stop ring is provided with a connecting groove. The utility model adjusts the sealing performance by controlling the extrusion degree of the sealing ring, thereby effectively ensuring the overall sealing performance of the device.

Description

Rubber valve seat with high sealing effect

Technical Field

The utility model relates to the technical field of valve seats, in particular to a rubber valve seat with a high sealing effect.

Background

The valve seat is a detachable surface component in the valve, is used for supporting the valve core at the full-closed position and forms a sealing pair. The diameter of the valve seat is the maximum flow diameter of the valve. For example, the valve seat of the butterfly valve is very wide in material, and various rubbers, plastics, metal materials and the like can be used as the valve seat material, but along with the continuous improvement of the use requirement of the market on the valve, the sealing performance of the valve seat in the actual working process is also urgently needed to be perfect.

In the prior art, most of the sealing performance of the valve seat depends on the rubber deformation of the valve seat for sealing work, and in the actual use process, the valve seat is easy to fatigue due to the movement of the valve core, so that the whole sealing performance of the connecting part of the valve core is gradually reduced, and finally the whole valve cannot work normally.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a rubber valve seat with high sealing effect to solve the problems of the background art mentioned above.

In order to achieve the purpose, the utility model provides the following technical scheme: a rubber valve seat with high sealing effect comprises a valve seat main body, a retainer ring and a sealing element arranged at the inner side of the valve seat main body, the inner side of the upper end of the valve seat main body is provided with a mounting groove, the inner wall of the mounting groove of the valve seat main body is provided with a plurality of parallel laminated gear rings, the sealing element is arranged in the mounting groove of the valve seat main body, the outer wall of the sealing element is provided with a tooth socket corresponding to the gear ring, the upper end of the sealing element is provided with a plurality of first jacks, the upper end surface of the sealing element is fixedly provided with a connecting piece, the connecting piece is integrally provided with a plurality of second jacks corresponding to the first jacks, the retainer ring is arranged at the upper end of the valve seat main body, and the valve seat main body is connected through a bolt, the lower surface of the retainer ring is provided with a connecting groove, the lower surface of the retainer ring is provided with a plurality of inserted bars in the connecting groove, and the lower ends of the plurality of inserted bars penetrate through the second jack and are positioned in the first jack.

As a further preferred aspect of the present invention, a fixing ring is provided in the connecting groove on the lower surface of the retainer ring, and an inner wall of the fixing ring abuts against an outer wall of the connecting member.

As a further preferable mode of the present technical solution, the lower end of the fixing ring is provided with an oblique opening, and a maximum diameter of the oblique opening is larger than an outer diameter of the connecting member.

As a further preferred of this technical scheme, the mounting hole has been seted up at the middle part of shelves circle, the inboard lower extreme of shelves circle is provided with sealing member in the department that corresponds of mounting hole, sealing member includes fixed cover, first spacing collar, second spacing collar and the sealing washer that the internal diameter equals with the mounting hole diameter, fixed cover is fixed to be set up at the lower surface of shelves circle, and corresponds with the mounting hole, first spacing collar, second spacing collar set up respectively in the inside of fixed cover, mounting hole, the whole clearance department that is located first spacing collar, second spacing collar of sealing washer.

As a further preferred aspect of the present technical solution, the first limiting ring is fixedly connected to an inner wall of the fixing sleeve, the second limiting ring is connected to the mounting hole by a thread, and inner diameters of the first limiting ring and the second limiting ring are equal.

As a further preferred aspect of the present technical solution, the sealing ring is provided with a closed cavity inside and air is filled in the cavity, and the sealing ring is integrally made of a wear-resistant and corrosion-resistant material.

As a further preferred aspect of this technical scheme, the outside of ring washer is provided with the protective cover through the screw thread in the upper end of mounting hole, the perforation has been seted up at the middle part of protective cover, the fenestrate aperture with the internal diameter of first spacing collar equals.

The utility model provides a rubber valve seat with a high sealing effect, which has the following beneficial effects:

(1) according to the utility model, the sealing element and the connecting piece are arranged, the sealing element is connected with the gear ring of the valve seat main body in a matched manner through the tooth grooves, the first insertion hole of the sealing element is matched with the insertion rod, and the upper end of the connecting piece is fixed by extrusion through the fixing ring and the insertion rod, so that the stability of the sealing element in the use process is effectively ensured, and the integral sealing property is ensured.

(2) According to the utility model, the sealing component is arranged, the first limiting ring and the second limiting ring of the sealing component are respectively arranged in the fixed sleeve and the mounting hole, the whole sealing ring is positioned in the gap between the first limiting ring and the second limiting ring, after the sealing device is used for a long time, the second limiting ring is driven to move downwards by rotating the second limiting ring, so that the extrusion of the sealing ring is enhanced, the sealing performance is adjusted by controlling the extrusion degree of the sealing ring, and the whole sealing performance of the device is effectively ensured.

Drawings

FIG. 1 is a schematic overall structure of the present invention;

FIG. 2 is a schematic view of the seal of the present invention;

FIG. 3 is an enlarged view at A of FIG. 1 of the present invention;

fig. 4 is a schematic structural view of the sealing member of the present invention.

In the figure: 1. a valve seat body; 2. a retainer ring; 3. a seal member; 4. mounting grooves; 5. a ring gear; 6. a tooth socket; 7. a first jack; 8. a connecting member; 9. a second jack; 10. a bolt; 11. connecting grooves; 12. inserting a rod; 13. a stationary ring; 14. a bevel opening; 15. mounting holes; 16. fixing a sleeve; 17. a first spacing collar; 18. a second limit ring; 19. a seal ring; 20. a protective cover.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the present invention provides the technical solutions: a rubber valve seat with high sealing effect comprises a valve seat main body 1, a retainer ring 2 and a sealing element 3 arranged on the inner side of the valve seat main body 1, wherein the inner side of the upper end of the valve seat main body 1 is provided with a mounting groove 4, the inner wall of the valve seat main body 1 in the mounting groove 4 is provided with a plurality of parallel laminated gear rings 5, the sealing element 3 is arranged in the mounting groove 4 of the valve seat main body 1, the outer wall of the sealing element 3 is provided with a gear groove 6 corresponding to the gear ring 5, the upper end of the sealing element 3 is provided with a plurality of first jacks 7, the upper end face of the sealing element 3 is fixedly provided with a connecting piece 8, the connecting piece 8 is integrally provided with a plurality of second jacks 9 corresponding to the first jacks 7, the retainer ring 2 is arranged on the upper end of the valve seat main body 1 and is connected with the valve seat main body 1 through bolts 10, and the lower surface of the retainer ring 2 is provided with a connecting groove 11, a plurality of inserting rods 12 are arranged on the lower surface of the retainer ring 2 in the connecting groove 11, and the lower ends of the plurality of inserting rods 12 penetrate through the second inserting holes 9 and are positioned in the first inserting holes 7.

In this embodiment, specifically: the lower surface of shelves circle 2 is provided with retainer plate 13 in spread groove 11, the inner wall of retainer plate 13 with the outer wall butt of connecting piece 8 is fixed the upper end of connecting piece 8 through retainer plate 13 and inserted bar 12, extrudees simultaneously to ensure the stability in the use, and improve sealing performance through the extrusion.

In this embodiment, specifically: the lower end of the fixing ring 13 is provided with an inclined opening 14, and the maximum diameter of the inclined opening 14 is larger than the outer diameter of the connecting piece 8, so that the retainer ring 2 can be conveniently and quickly mounted.

In this embodiment, specifically: the middle part of the retainer ring 2 is provided with a mounting hole 15, the lower end of the inner side of the retainer ring 2 is provided with a sealing component at the corresponding position of the mounting hole 15, the sealing component comprises a fixed sleeve 16, a first limiting ring 17, a second limiting ring 18 and a sealing ring 19, the inner diameter of the fixed sleeve is equal to that of the mounting hole 15, the fixed sleeve 16 is fixedly arranged on the lower surface of the retainer ring 2 and corresponds to the mounting hole 15, the first limiting ring 17 and the second limiting ring 18 are respectively arranged inside the fixed sleeve 16 and the mounting hole 15, the sealing ring 19 is integrally positioned in the gap between the first limiting ring 17 and the second limiting ring 18, the sealing performance of the subsequent connecting part with the valve core is improved, and the whole sealing performance of the device is improved.

In this embodiment, specifically: first spacing collar 17 and the inner wall fixed connection of fixed cover 16, second spacing collar 18 passes through threaded connection with mounting hole 15, the internal diameter of first spacing collar 17, second spacing collar 18 equals, through rotating second spacing collar 18, adjusts the relative position between second spacing collar 18 and the sealing washer 19 to the extrusion degree through control sealing washer 19 is adjusted the leakproofness.

In this embodiment, specifically: the inside of sealing washer 19 is provided with inclosed cavity and packs the air in the cavity, sealing washer 19 wholly adopts wear-resisting anticorrosive material to make, prevents that sealing washer 19 is impaired in the use and leads to the holistic leakproofness of device to reduce.

In this embodiment, specifically: the outside of ring 2 is provided with protective cover 20 in the upper end of mounting hole 15 through the screw thread, the perforation has been seted up at protective cover 20's middle part, the fenestrate aperture with first spacing collar 17's internal diameter equals, the installation case of being convenient for, and through rotating protective cover 20, dismantle it to adjust the degree of sealing washer 19 and case.

Working principle, when in use, the sealing element 3 is arranged inside the valve seat main body 1, then the retainer ring 2 is connected with the valve seat main body 1, the inserted bar 12 and the fixed ring 13 on the lower surface of the retainer ring 2 are connected with the connecting piece 8 and the sealing piece 3, meanwhile, the gear ring 5 on the inner side of the valve seat main body 1 is matched and connected with the tooth groove 6 of the sealing element 3, so that the stability of the sealing element 3 in the use process is effectively ensured, thereby ensuring the whole sealing performance, and simultaneously, by arranging the first limit ring 17, the second limit ring 18 and the sealing ring 19, in the using process, the first limiting ring 17 and the second limiting ring 18 extrude the sealing ring 19, so that the sealing ring 19 can be tightly attached to the valve core, thereby further improving holistic leakproofness, and the accessible rotates second spacing collar 18, adjusts the leakproofness through the extrusion degree of control sealing washer 19.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rubber valve seat with high sealed effect which characterized in that: the sealing device comprises a valve seat main body (1), a retainer ring (2) and a sealing element (3) arranged on the inner side of the valve seat main body (1), wherein a mounting groove (4) is formed in the inner side of the upper end of the valve seat main body (1), a plurality of parallel laminated gear rings (5) are arranged on the inner wall of the mounting groove (4) of the valve seat main body (1), the sealing element (3) is arranged in the mounting groove (4) of the valve seat main body (1), a tooth groove (6) corresponding to the gear rings (5) is formed in the outer wall of the sealing element (3), a plurality of first insertion holes (7) are formed in the upper end of the sealing element (3), a connecting piece (8) is fixedly arranged on the end face of the upper end of the sealing element (3), a plurality of second insertion holes (9) corresponding to the first insertion holes (7) are integrally formed in the connecting piece (8), the retainer ring (2) is arranged on the upper end of the valve seat main body (1) and is connected with the valve seat main body (1) through bolts (10), connecting groove (11) have been seted up to the lower surface of shelves circle (2), the lower surface of shelves circle (2) is provided with a plurality of inserted bars (12) in connecting groove (11), and is a plurality of the lower extreme of inserted bar (12) all pass second jack (9) and be in the inside of first jack (7).

2. A rubber valve seat having a high sealing effect according to claim 1, wherein: the lower surface of the retainer ring (2) is internally provided with a fixed ring (13) in the connecting groove (11), and the inner wall of the fixed ring (13) is abutted against the outer wall of the connecting piece (8).

3. A rubber valve seat having a high sealing effect according to claim 2, wherein: the lower end of the fixing ring (13) is provided with an inclined opening (14), and the maximum diameter of the inclined opening (14) is larger than the outer diameter of the connecting piece (8).

4. A rubber valve seat having a high sealing effect according to claim 1, wherein: mounting hole (15) have been seted up at the middle part of ring washer (2), the inboard lower extreme of ring washer (2) is provided with sealing member in the department that corresponds of mounting hole (15), sealing member includes fixed cover (16), first spacing collar (17), second spacing collar (18) and sealing washer (19) that the internal diameter equals with mounting hole (15) diameter, fixed cover (16) are fixed to be set up at the lower surface of ring washer (2), and correspond with mounting hole (15), first spacing collar (17), second spacing collar (18) set up respectively in the inside of fixed cover (16), mounting hole (15), sealing washer (19) wholly are located the clearance department of first spacing collar (17), second spacing collar (18).

5. A rubber valve seat with high sealing effect according to claim 4, wherein: the inner wall fixed connection of first spacing collar (17) and fixed cover (16), second spacing collar (18) passes through threaded connection with mounting hole (15), the internal diameter of first spacing collar (17), second spacing collar (18) equals.

6. A rubber valve seat with high sealing effect according to claim 4, wherein: the inside of sealing washer (19) is provided with inclosed cavity and packs the air in the cavity, sealing washer (19) wholly adopts wear-resisting anticorrosive material to make.

7. A rubber valve seat with high sealing effect according to claim 4, wherein: the outer side of the retainer ring (2) is provided with a protective cover (20) at the upper end of the mounting hole (15) through threads, a through hole is formed in the middle of the protective cover (20), and the aperture of the through hole is equal to the inner diameter of the first limiting ring (17).