CN219911832U - Wear-resisting high leakproofness's sword formula ball valve - Google Patents

Abstract

The utility model discloses a wear-resistant high-tightness knife-type ball valve, and relates to the technical field of control valves. This wear-resisting high leakproofness's knife type ball valve through setting up baffle ring, wear-resisting circle and sealing washer, can avoid the outer lane direct contact disk seat of knife type valve plate, through baffle ring, wear-resisting circle and sealing washer contact disk seat and realize switch-on or stage control, the wear-resisting effect of certain degree can be played to the wear-resisting circle, the sealing washer can increase the leakproofness of knife type valve plate, wearability and leakproofness are better, through setting up first filter screen cover and second filter screen cover, can filter it when the medium gets into the disk seat, filter the solid matter therein, thereby avoid solid matter striking knife type valve plate, can avoid the condition that the damage appears to the knife type valve plate, durable more.

Description

Wear-resisting high leakproofness's sword formula ball valve

Technical Field

The utility model relates to the technical field of control valves, in particular to a wear-resistant knife-type ball valve with high sealing performance.

Background

Nowadays, the application of knife-shaped ball valves in the field of cut-off valves is more and more common, knife-shaped valve plates are arranged inside the knife-shaped ball valves, the knife-shaped valve plates are simple and firm, but due to mutual friction between the knife-shaped valve plates and valve seats, the outer rings of the knife-shaped valve plates are worn for a long time, so that the tightness is reduced, and the leakage is easy to occur.

For example, patent publication number CN108374905a discloses a wear-resistant knife gate valve with high sealing performance, comprising a valve cover and a valve body; the valve cover comprises a hand wheel, a valve rod and a bracket; the hand wheel is connected with the valve rod, and the valve rod is rotated and lifted through a valve rod nut; the valve body comprises a knife-type valve plate, a limiting block, a screw and a valve seat from top to bottom; the valve body is connected with the valve cover through a bolt, a limiting block for fixing the valve gate valve is arranged in the flow passage, the knife-shaped valve plate is fixedly connected with the valve rod, and a wear-resistant fixing block is arranged at the front end of the knife-shaped valve plate. The utility model has compact integral structure, high sealing performance and high use efficiency;

the outside of the cutter-type valve plate in the patent is only provided with one layer of wear-resistant lining, the surface of the wear-resistant lining can be worn to a certain extent after the service time is long, the tightness of the device can be influenced, and the wear-resistant effect is not very good.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the wear-resistant knife-type ball valve with high sealing performance, and solves the problem that the wear-resistant effect is not very good.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a wear-resisting high leakproofness's knife type ball valve, includes the disk seat, disk seat upside fixedly connected with valve body, disk seat rear side fixedly connected with first connecting pipe, valve body front side fixedly connected with second connecting pipe, valve body upside fixedly connected with extension sleeve, the disk seat inboard is provided with the knife type valve plate, knife type valve plate outside fixedly connected with keeps off the ring, keep off the ring rear side and be provided with the sealing washer, it is provided with wear-resisting circle to keep off the ring front side, knife type valve plate upside fixedly connected with connecting rod, connecting rod upside fixedly connected with fixed head, fixed head upside fixedly connected with connecting axle, connecting axle outside fixedly connected with hand wheel, connecting axle outside fixedly connected with location strip, valve body inboard fixedly connected with backup pad, backup pad upside fixedly connected with fixed sleeve, disk seat inboard fixedly connected with first filtration screen panel, the disk seat opposite side be provided with the corresponding second filtration screen panel of first filtration screen panel, disk seat upside fixedly connected with fixed block.

Preferably, the first connecting pipe and the second connecting pipe are provided with connecting flanges on the outer sides, and uniformly distributed mounting holes are formed in the surfaces of the connecting flanges.

Preferably, the positioning strips are uniformly distributed on the outer side of the connecting shaft, and clamping grooves corresponding to the positioning strips are formed in the inner side of the fixing sleeve.

Preferably, the outer diameters of the baffle ring, the sealing ring and the wear-resistant ring are the same, and the outer surfaces of the baffle ring, the sealing ring and the wear-resistant ring are attached to the inner side of the valve seat.

Preferably, the upper side of the valve seat is fixedly provided with a reinforcing sleeve, and the connecting rod is attached to the inner side of the reinforcing sleeve.

Preferably, the first filtering net cover and the second filtering net cover are made of stainless steel, and the first filtering net cover and the second filtering net cover are attached to the inner side of the valve seat.

Advantageous effects

The utility model provides a wear-resistant knife-type ball valve with high sealing performance. Compared with the prior art, the device has the following

The beneficial effects are that:

1. this wear-resisting high leakproofness's knife type ball valve through setting up baffle ring, wear-resisting circle and sealing washer, can avoid the outer lane direct contact disk seat of knife type valve plate, through baffle ring, wear-resisting circle and sealing washer contact disk seat and realize switch-on or stage control, the wear-resisting circle can play the wearing effect of certain degree, and the sealing washer can increase the leakproofness of knife type valve plate, and wearability and leakproofness are better.

2. This wear-resisting high leakproofness's knife type ball valve through setting up first filter screen cover and second filter screen cover, can filter it when the medium gets into the disk seat, filters the solid material wherein to avoid solid material striking knife type valve plate, can avoid the condition that the damage appears in knife type valve plate, durable more.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a first filter screen according to the present utility model;

FIG. 3 is a schematic view of a connecting shaft according to the present utility model;

fig. 4 is a schematic structural view of a knife-type valve plate according to the present utility model.

In the figure: 1. a valve seat; 2. a first connection pipe; 3. a second connection pipe; 4. a connecting flange; 5. a valve body; 6. an extension sleeve; 7. a knife-type valve plate; 8. a baffle ring; 9. a seal ring; 10. wear-resistant ring; 11. a connecting rod; 12. a fixed head; 13. a connecting shaft; 14. a hand wheel; 15. a positioning strip; 16. a first filter screen; 17. a second filter screen; 18. a fixed block; 19. and (5) reinforcing the sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a wear-resisting high leakproofness's knife type ball valve, including disk seat 1, disk seat 1 upside fixedly connected with valve body 5, disk seat 1 rear side fixedly connected with first connecting pipe 2, valve body 5 front side fixedly connected with second connecting pipe 3, valve body 5 upside fixedly connected with extension sleeve 6, disk seat 1 inboard is provided with knife type valve plate 7, knife type valve plate 7 outside fixedly connected with baffle ring 8, baffle ring 8 rear side is provided with sealing washer 9, baffle ring 8 front side is provided with wear ring 10, knife type valve plate 7 upside fixedly connected with connecting rod 11, connecting rod 11 upside fixedly connected with fixed head 12, fixed head 12 upside fixedly connected with connecting axle 13, connecting axle 13 outside fixedly connected with hand wheel 14, connecting axle 13 outside fixedly connected with location strip 15, valve body 5 inboard fixedly connected with backup pad, backup pad upside fixedly connected with fixed cover, disk seat 1 inboard fixedly connected with first filter screen 16, disk seat 1 opposite side is provided with second filter screen 17 corresponding with first filter screen panel 16, first filter screen panel 16 and second filter screen panel 17 can filter it when medium gets into disk seat 1, wherein, solid matter on disk seat 1 is fixed on the side is installed with solid material on the fixed disk seat 18;

the connecting flange 4 is arranged on the outer sides of the first connecting pipe 2 and the second connecting pipe 3, uniformly distributed mounting holes are formed in the surfaces of the connecting flange 4, the connecting flange 4 and an external pipeline are mutually connected through the mounting holes, the positioning strips 15 are uniformly distributed on the outer side of the connecting shaft 13, clamping grooves corresponding to the positioning strips 15 are formed in the inner side of the fixing sleeve, the outer diameters of the baffle ring 8, the sealing ring 9 and the wear-resisting ring 10 are the same, the outer surfaces of the baffle ring 8, the sealing ring 9 and the wear-resisting ring 10 are attached to the inner side of the valve seat 1, the wear-resisting ring 10 can play a certain degree of a wear-resisting effect, the sealing ring 9 can increase the tightness of the knife-shaped valve plate 7, the wear resistance and the tightness are better, the reinforcing sleeve 19 is fixedly mounted on the upper side of the valve seat 1, the connecting rod 11 is attached to the inner side of the reinforcing sleeve 19, the materials of the first filtering mesh enclosure 16 and the second filtering mesh enclosure 17 are made of stainless steel, and the first filtering mesh enclosure 16 and the second filtering mesh enclosure 17 are attached to the inner side of the valve seat 1.

During operation, the whole knife-shaped ball valve is fixed in a place where the knife-shaped ball valve is required, the pipeline is connected with the first connecting pipe 2 and the second connecting pipe 3 respectively, the pipeline is fixed through bolts, the outer ring of the knife-shaped valve plate 7 can be prevented from being directly contacted with the valve seat 1 through the baffle ring 8, the wear-resistant ring 10 and the sealing ring 9, the valve seat 1 is contacted with the wear-resistant ring 10 and the sealing ring 9, the connection or stage control is realized, the wear-resistant ring 10 can play a certain wear-resistant role, the sealing ring 9 can increase the tightness of the knife-shaped valve plate 7, the wear resistance and the tightness are better, the first filtering net cover 16 and the second filtering net cover 17 are arranged, the medium can be filtered when entering the valve seat 1, and solid matters in the medium can be filtered, so that the solid matters are prevented from impacting the knife-shaped valve plate 7, the damage of the knife-shaped valve plate 7 can be avoided, and the knife-shaped valve plate 7 is more durable.

And all that is not described in detail in this specification is well known to those skilled in the art.

Claims (6)

1. The utility model provides a wear-resisting high leakproofness's sword formula ball valve, includes disk seat (1), its characterized in that: valve body (5) is fixedly arranged on the upper side of valve seat (1), first connecting pipe (2) is fixedly connected on the rear side of valve seat (1), second connecting pipe (3) is fixedly connected on the front side of valve body (5), extension sleeve (6) is fixedly arranged on the upper side of valve body (5), knife-type valve plate (7) is arranged on the inner side of valve seat (1), baffle ring (8) is fixedly connected on the outer side of knife-type valve plate (7), sealing ring (9) is arranged on the rear side of baffle ring (8), wear-resistant ring (10) is arranged on the front side of baffle ring (8), connecting rod (11) is fixedly connected on the upper side of knife-type valve plate (7), fixing head (12) is fixedly connected with connecting shaft (13), hand wheel (14) is fixedly arranged on the outer side of connecting shaft (13), positioning strip (15) is fixedly arranged on the outer side of valve body (13), support plate (5) is fixedly arranged on the inner side of valve plate, fixing sleeve (1) is fixedly arranged on the inner side of support plate, first net cover (16) is fixedly arranged on the inner side of valve body (16), filtering net cover (16) is correspondingly arranged on the inner side of valve seat (16), a fixed block (18) is fixedly arranged on the upper side of the valve seat (1).

2. The wear-resistant high-tightness knife-type ball valve according to claim 1, wherein: the connecting flange (4) is arranged on the outer side of the first connecting pipe (2) and the outer side of the second connecting pipe (3), and uniformly distributed mounting holes are formed in the surface of the connecting flange (4).

3. The wear-resistant high-tightness knife-type ball valve according to claim 1, wherein: the locating strips (15) are uniformly distributed on the outer side of the connecting shaft (13), and clamping grooves corresponding to the locating strips (15) are formed in the inner side of the fixing sleeve.

4. The wear-resistant high-tightness knife-type ball valve according to claim 1, wherein: the outer diameters of the baffle ring (8), the sealing ring (9) and the wear-resistant ring (10) are the same, and the outer surfaces of the baffle ring (8), the sealing ring (9) and the wear-resistant ring (10) are attached to the inner side of the valve seat (1).

5. The wear-resistant high-tightness knife-type ball valve according to claim 1, wherein: the upper side of the valve seat (1) is fixedly provided with a reinforcing sleeve (19), and the connecting rod (11) is attached to the inner side of the reinforcing sleeve (19).

6. The wear-resistant high-tightness knife-type ball valve according to claim 1, wherein: the first filter screen (16) and the second filter screen (17) are made of stainless steel, and the first filter screen (16) and the second filter screen (17) are attached to the inner side of the valve seat (1).