CN212745112U

CN212745112U - Double-gate airlock wear-resistant valve

Info

Publication number: CN212745112U
Application number: CN202021721820.7U
Authority: CN
Inventors: 刘光明; 殷渊; 强佳新
Original assignee: Changzhou Longjin Machinery Co ltd
Current assignee: Changzhou Longjin Machinery Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-03-19
Anticipated expiration: 2030-08-17

Abstract

The application relates to a double-gate airlock wear-resistant valve, which comprises a valve seat, two valve plates for sealing a feeding hole and a discharging hole of the valve seat, a valve core seat connected with the two valve plates, and a driving device connected with the valve core seat and used for driving the valve plates to open or close the feeding hole and the discharging hole; mounting grooves have all been seted up to two lateral walls of the valve core case of two relative valve plates, and two valve plates all are provided with the installation pole, and two installation poles activity respectively are pegged graft in two mounting grooves, are provided with first spring in two mounting grooves respectively, and first spring one end is contradicted at the valve plate lateral wall, and the other end is contradicted at the mounting groove tank bottom, and the installation pole passes first spring, is provided with on drive arrangement's the telescopic shaft to be used for supporting tight installation pole to make the valve plate be in the tight subassembly of supporting of encapsulated situation. This application has the effect of better improvement valve seal nature.

Description

Double-gate airlock wear-resistant valve

Technical Field

The application relates to the technical field of valves, in particular to a double-gate airlock wear-resistant valve.

Background

The double-gate air-lock wear-resistant valve is a valve widely used in pipeline valves, and is suitable for opening and closing inlet and outlet pipelines of dry ash systems and slag systems in power plants and cement plants.

The valve mainly comprises a valve body, a cylinder and a spring device, and the sealing effect of the double-gate air-lock wear-resistant valve is realized by extruding a valve plate through the spring tension connected with the inner side of the valve plate, so that the purpose of preventing the passage from circulating is achieved. However, when the instantaneous pressure of the material in the pipeline is greater than the tension of the spring, the valve plate is extruded out of a gap, so that an object can be rapidly leaked out of the gap, and the defects of poor sealing performance and the like are caused.

SUMMERY OF THE UTILITY MODEL

In order to improve the leakproofness of valve, this application provides a double gate airlock wear-resisting valve.

The application provides a double-brake airlock wear-resisting valve adopts following technical scheme:

a double-gate airlock wear-resistant valve comprises a valve seat, two valve plates, a valve core seat and a driving device, wherein the two valve plates are respectively used for sealing a feeding hole and a discharging hole of the valve seat; mounting grooves are formed in two side walls of the valve core seat, which are opposite to the two valve plates, mounting rods are arranged on the valve plates, the mounting rods are movably inserted into the two mounting grooves respectively, first springs are arranged in the mounting grooves respectively, one end of each first spring abuts against the side wall of the valve plate, the other end of each first spring abuts against the bottom of the corresponding mounting groove, the mounting rods penetrate through the first springs, and the telescopic shafts of the driving devices are provided with abutting assemblies used for abutting against the mounting rods so that the valve plates are in a closed state.

Through adopting above-mentioned technical scheme, promote the valve core case through drive arrangement to the valve plate that the drive is connected with the valve core case removes the opening part to the disk seat, makes the valve plate seal at the opening part of disk seat through the spring force on the valve core case, then the rethread supports tight subassembly and further supports the installation pole tightly, thereby makes the valve plate further support tightly and seal the disk seat, thereby has improved the leakproofness of valve.

Preferably, the tight subassembly of support includes ejector pin and second spring, the drive arrangement telescopic shaft with ejector pin fixed connection, the spread groove has been seted up towards the lateral wall of drive arrangement telescopic shaft to the valve core seat, the ejector pin activity is pegged graft in the spread groove, spread groove notch department is provided with annular stopper, the spread groove downside is provided with annular touch multitouch, is located the spread groove the ejector pin is provided with annular installation piece, second spring movable sleeve is established on the ejector pin, second spring one end is contradicted on annular installation piece, and the other end is contradicted on annular touch multitouch, the mounting groove tank bottom is seted up with the communicating hole of stepping down of spread groove, two the installation rod tip passes the hole of stepping down and extends to the spread groove in, the tip of installation rod is provided with the conflict inclined plane with ejector pin complex.

Through adopting above-mentioned technical scheme, drive arrangement's telescopic shaft drive ejector pin removes, and the ejector pin compression second spring, the valve plate removes the disk seat opening part when the elasticity of second spring is greater than the frictional force that the valve plate removed, and elasticity through first spring makes two closed disk seats of valve plate, and drive arrangement drive ejector pin further compresses the second spring simultaneously to make the ejector pin contradict on the inclined plane of installation pole, and then support the valve plate tightly at the opening part of disk seat, thereby further improve the leakproofness of valve.

Preferably, the end part of the ejector rod is provided with a matching inclined plane relative to the side wall of the mounting rod.

Through adopting above-mentioned technical scheme, the lateral wall of the relative installation pole of ejector pin tip is provided with the cooperation inclined plane, increases area of contact to improve the stability of ejector pin conflict on the installation pole.

Preferably, the side wall of the valve seat is provided with a through hole for the telescopic shaft of the driving device to pass through, the circumferential side wall of the through hole close to the outer side is provided with an annular groove, a first sealing ring is arranged in the annular groove, and the telescopic shaft of the driving device movably penetrates through the first sealing ring.

Through adopting above-mentioned technical scheme, the leakproofness of valve seat has been improved to the first sealing ring of setting on the ring channel.

Preferably, the notch of the annular groove is in threaded connection with an annular cover, and the telescopic shaft of the driving device can be arranged on the annular cover in a penetrating manner.

Through adopting above-mentioned technical scheme, the stability of first sealing ring installation can be improved to the annular lid to when first sealing ring damages, convenient the change. The annular cover is arranged, so that the first sealing ring can be replaced quickly and conveniently when the first sealing ring is damaged.

Preferably, two the valve plate all inlays and is equipped with the second sealing washer.

Through adopting above-mentioned technical scheme, the valve plate all inlays and is equipped with the second sealing washer, improves the leakproofness between valve plate and the disk seat.

Preferably, the feed inlet and the discharge outlet of the valve seat are respectively embedded with a third sealing ring matched with the second sealing ring.

Through adopting above-mentioned technical scheme, the feed inlet of disk seat and discharge gate department all inlay be equipped with second sealing washer complex third sealing washer, better improve the leakproofness of double-brake airlock wear-resisting valve.

Preferably, the valve plate is a ceramic plate.

Through adopting above-mentioned technical scheme, the valve plate is wear-resisting ceramic plate, improves the wear-resisting effect of valve, improves the life of valve.

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

1. the driving device pushes the valve core seat to drive the valve plate connected with the valve core seat to move to the opening of the valve seat, the valve plate is sealed at the opening of the valve seat through the spring elasticity on the valve core seat, then the mounting rod is further supported tightly through the supporting component, and the valve plate further supports the tightly sealed valve seat, so that the sealing performance of the valve is improved.

2. The lateral wall of the relative installation pole of ejector pin tip is provided with the cooperation inclined plane, increases area of contact to improve the stability of ejector pin conflict on the installation pole.

3. The valve plate is a wear-resistant ceramic plate, so that the wear-resistant effect of the valve is improved, and the service life of the valve is prolonged.

Drawings

FIG. 1 is a cross-sectional view of a double-gate airlock wear valve in an embodiment of the present application;

FIG. 2 is a partial cross-sectional view of a double-gate airlock wear valve in an embodiment of the present application.

Reference numerals: 1. a valve seat; 2. a valve plate; 3. a valve core seat; 4. a drive device; 5. mounting grooves; 6. mounting a rod; 7. a first spring; 8. a top rod; 9. a second spring; 10. perforating holes; 11. connecting grooves; 12. an annular stop block; 13. an annular contact block; 14. an annular mounting block; 15. a hole of abdication; 16. abutting against the inclined plane; 17. a mating bevel; 18. a first seal ring; 19. an annular groove; 20. a second seal ring; 21. a third seal ring; 22. an annular cover.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses double-brake airlock wear-resistant valve. Referring to fig. 1 and 2, the valve comprises a valve seat 1, two valve plates 2 for respectively closing a feeding hole and a discharging hole of the valve seat 1, a valve core seat 3 connected with the two valve plates 2, and a driving device 4 connected with the valve core seat 3 and used for driving the valve plates 2 to open or close the feeding hole and the discharging hole, wherein the driving device 4 in the embodiment is configured as an air cylinder or a hydraulic cylinder.

Valve plate 2 is wear-resisting ceramic plate in this embodiment, possesses good wearability, increase of service life, also can be other valve plates that can reach the same wear-resisting effect in other embodiments. Mounting grooves 5 have all been seted up towards two lateral walls of case seat 3 to two valve plates 2, two valve plates 2 all are provided with installation pole 6, two installation poles 6 activity respectively are pegged graft in two mounting grooves 5, be provided with first spring 7 in two mounting grooves 5 respectively, 7 one end of first spring is contradicted at the valve plate 2 lateral walls, the other end is contradicted at the 5 tank bottoms of mounting groove, installation pole 6 passes first spring 7, be provided with on drive arrangement 4's the telescopic shaft and be used for supporting tight installation pole 6, so that valve plate 2 is in the tight subassembly of support of encapsulated situation. The valve plate is tightly propped by the spring and the mounting rod, so that the double-brake air-lock wear-resistant valve has a better sealing effect.

Referring to fig. 2, in particular, the hold-down assembly includes a carrier rod 8 and a second spring 9. The telescopic shaft of the driving device 4 is fixedly connected with the mandril 8 through threads, the side wall of the valve core seat 3 facing the telescopic shaft of the driving device 4 is provided with a connecting groove 11, the mandril 8 is movably inserted in the connecting groove 11, the notch of the connecting groove 11 is provided with an annular limiting block 12, the lower side of the connecting groove 11 is provided with an annular contact block 13, the position of the mandril 8 positioned in the connecting groove 11 is provided with an annular mounting block 14, a second spring 9 is movably sleeved on the mandril 8, one end of the second spring 9 is abutted against the annular mounting block 14, the other end is abutted against the annular contact block 13, the bottom of the mounting groove 5 is provided with a abdicating hole 15 communicated with the connecting groove 11, the end parts of two mounting rods 6 on the valve plate 2 pass through the abdicating hole 15 and extend into the connecting groove 11, the end part of the mounting rod 6 is provided with an abutting inclined plane, the contact area is increased, so that the force generated by the butting is more stable. The telescopic shaft drive ejector pin 8 of drive arrangement 4 removes, ejector pin 8 compresses second spring 9, valve plate 2 removes the disk seat opening part when the elasticity of second spring 9 is greater than the frictional force that valve plate 2 removed, elasticity through first spring 7 makes two closed disk seats of valve plate 2, drive arrangement 4 drive ejector pin 8 further compresses second spring 9 simultaneously, thereby make ejector pin 8 contradict on the inclined plane of installation pole 6, and then support valve plate 2 tightly at the opening part of disk seat, thereby further improve the leakproofness of valve.

Offer the through hole 10 that supplies drive arrangement 4 telescopic shaft to pass at 1 lateral wall of disk seat, through hole 10 is close to the circumference lateral wall in the outside and has seted up ring channel 19, be provided with first sealing ring 18 in the ring channel 19, the notch department threaded connection of ring channel 19 has annular lid 22, first sealing ring 18 and annular lid 22 are worn to locate in drive arrangement 4's telescopic shaft activity, first sealing ring 18 makes and has better sealed effect between disk seat 1 and the 4 telescopic links of drive arrangement, damage when first sealing ring 18, utilize annular lid 22 to make things convenient for the replacement of first sealing ring 18 more.

The surface of the valve plate 2 is embedded with a second sealing ring 20, and the feed inlet and the discharge outlet of the valve seat 1 are also embedded with a third sealing ring 21 matched with the second sealing ring 20, so that the double-gate airlock valve has a better sealing effect when being sealed.

The implementation principle of the embodiment of the application is as follows:

the axle drive ejector pin 8 of drive arrangement 4 removes, ejector pin 8 compresses second spring 9, valve plate 2 removes the disk seat opening part when the elasticity of second spring 9 is greater than the frictional force that valve plate 2 removed, elasticity through first spring 7 makes two closed disk seats of valve plate 2, drive arrangement 4 drive ejector pin 8 further compresses second spring 9 simultaneously, thereby make ejector pin 8 contradict on the inclined plane of installation pole 6, and then support valve plate 2 tightly at the opening part of disk seat, thereby further improve the leakproofness of valve.

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 wear-resisting valve of double-brake airlock which characterized in that: the valve comprises a valve seat (1), two valve plates (2) respectively used for sealing a feeding hole and a discharging hole of the valve seat (1), a valve core seat (3) connected with the two valve plates (2), and a driving device (4) connected with the valve core seat (3) and used for driving the valve plates (2) to open or close the feeding hole and the discharging hole; mounting groove (5), two have all been seted up to two lateral walls of two relative valve plates (2) valve core case (3) valve plate (2) all are provided with installation pole (6), two installation pole (6) activity respectively is pegged graft in two mounting grooves (5), two be provided with first spring (7) in mounting groove (5) respectively, first spring (7) one end is contradicted at valve plate (2) lateral wall, and the other end is contradicted at mounting groove (5) tank bottom, first spring (7) are passed in installation pole (6), be provided with on the telescopic shaft of drive arrangement (4) and be used for supporting tight installation pole (6) to make valve plate (2) be in the tight subassembly of supporting of encapsulated situation.

2. A double-gate airlock, wear resistant valve as defined in claim 1, wherein: the abutting component comprises an ejector rod (8) and a second spring (9), a telescopic shaft of the driving device (4) is fixedly connected with the ejector rod (8), a connecting groove (11) is formed in the side wall, facing the telescopic shaft of the driving device (4), of the valve core seat (3), the ejector rod (8) is movably inserted into the connecting groove (11), an annular limiting block (12) is arranged at the notch of the connecting groove (11), an annular abutting block (13) is arranged on the lower side of the connecting groove (11), an annular mounting block (14) is coaxially and fixedly arranged on the ejector rod (8) and located in the connecting groove (11), the second spring (9) is movably sleeved on the ejector rod (8), one end of the second spring (9) abuts against the annular mounting block (14), the other end of the second spring abuts against the annular abutting block (13), a yielding hole (15) communicated with the connecting groove (11) is formed in the bottom of the mounting groove (5), two installation pole (6) tip passes in abdicating hole (15) extends to spread groove (11), the tip of installation pole (6) is provided with conflict inclined plane (16) with ejector pin (8) complex.

3. A double-gate airlock, wear resistant valve as defined in claim 2 wherein: and a matching inclined plane (17) is arranged at the end part of the ejector rod (8) relative to the side wall of the mounting rod (6).

4. A double-gate airlock, wear resistant valve as defined in claim 1, wherein: the side wall of the valve seat (1) is provided with a through hole (10) for the telescopic shaft of the driving device (4) to penetrate through, the circumferential side wall of the through hole (10) close to the outer side is provided with an annular groove (19), a first sealing ring (18) is arranged in the annular groove (19), and the telescopic shaft of the driving device (4) penetrates through the first sealing ring (18) in a movable mode.

5. A double-gate airlock, wear resistant valve as defined in claim 4 wherein: the notch of the annular groove (19) is in threaded connection with an annular cover (22), and a telescopic shaft of the driving device (4) can be arranged on the annular cover (22) in a penetrating mode.

6. A double-gate airlock, wear resistant valve as defined in claim 1, wherein: and a second sealing ring (20) is embedded in each valve plate (2).

7. A double-gate airlock, wear resistant valve as defined in claim 6 wherein: and a third sealing ring (21) matched with the second sealing ring (20) is embedded at the feed inlet and the discharge outlet of the valve seat (1).

8. A double-gate airlock, wear resistant valve as defined in claim 1, wherein: the valve plate (2) is a wear-resistant ceramic plate.