CN218935338U

CN218935338U - Intercommunication structure of valve part and sealing element

Info

Publication number: CN218935338U
Application number: CN202222746519.7U
Authority: CN
Inventors: 韩山; 丁智强
Original assignee: Fisia Fluid Control Shanghai Co ltd
Current assignee: Fisia Fluid Control Shanghai Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-04-28
Anticipated expiration: 2032-10-18

Abstract

The utility model discloses an intercommunication structure of valve parts and sealing elements, which comprises a valve seat body, wherein the outer side of the valve seat body is provided with a feed inlet and a discharge outlet through a positioning seat and a bolt, the upper side of the valve seat body is provided with a valve rod through a connecting seat, a spherical valve core is arranged in a valve cavity in one end of the valve rod, a material conveying channel is arranged in the spherical valve core, the outer side of the spherical valve core is provided with a first sealing layer, the outer sides of the spherical valve cores at two ends of the material conveying channel are elastically clamped with sealing elements, the outer walls of the spherical valve cores are provided with sliding grooves, the sealing elements are slidably clamped in the sliding grooves, the first sealing layer is arranged outside the spherical valve cores, the spherical valve cores and the inner walls of the valve cavity can be comprehensively sealed, and the outer sides of the spherical valve cores at two ends of the material conveying channel are elastically clamped with sealing elements, so that local elastic sealing treatment can be formed between the spherical valve cores and the inner walls of the valve seat, and the sealing elements are sealed in multiple layers, and the sealing effect is good.

Description

Intercommunication structure of valve part and sealing element

Technical Field

The utility model relates to the technical field of ball valves, in particular to an intercommunication structure of valve parts and sealing elements.

Background

The ball valve is a valve with an opening and closing part (ball body) driven by a valve rod and rotating around the axis of the ball valve, and can also be used for regulating and controlling fluid. The ball valves are classified into pneumatic ball valves, electric ball valves and manual ball valves according to the driving mode. Ball valves are widely used in industries such as petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like. Ball valves are used in pipelines mainly to cut off, distribute and change the flow direction of a medium, and can be tightly closed only by rotating the ball valve by 90 degrees and small rotating moment. The ball valve is most suitable for being used as a switch or a cut-off valve, and the V-shaped ball valve.

The intercommunication structure of current ball valve spare part and sealing member, sealing means is single for sealed effect is general, can not prevent the emergence of disk seat weeping phenomenon well, is inconvenient for dismouting maintenance processing moreover.

Disclosure of Invention

The utility model aims to provide an intercommunication structure of valve parts and sealing elements, which solves the problems that the sealing mode is single, the sealing effect is common, the occurrence of the leakage phenomenon of a valve seat is difficult to be well prevented, and the disassembly, the assembly and the maintenance are inconvenient.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an intercommunication structure of valve spare part and sealing member, includes the disk seat body, feed inlet and discharge gate are installed through positioning seat and bolt in the disk seat body outside, the valve rod is installed through the connecting seat to the disk seat body upside, install spherical case in the valve pocket of valve rod one end inside, and the inside material conveying passageway that has seted up of spherical case, first sealing layer is installed in the spherical case outside, the spherical case outside elasticity slip card at material conveying passageway both ends is equipped with the sealing member.

Further, a chute is formed in the outer wall of the spherical valve core, and the sealing piece is slidably clamped in the chute.

Further, a second sealing layer is arranged on the outer side of the sealing element, and a third sealing layer is arranged between the positioning seats.

Further, the sealing element is arranged in a circular ring shape, and one side of the sealing element, which is contacted with the valve cavity, is arranged to be convex.

Furthermore, a positioning groove is formed in one side of the sealing element, and springs are installed in the positioning groove and the sliding groove.

Further, the guide groove is formed in the inner wall of the sliding groove, and two sides of the sealing piece are arranged in a sliding mode through the limiting block and the guide groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the first sealing layer is arranged on the outer side of the spherical valve core, so that the spherical valve core and the inner wall of the valve cavity can be subjected to comprehensive sealing treatment, and the sealing piece is elastically clamped on the outer sides of the spherical valve cores at the two ends of the material conveying channel in a sliding manner, so that the spherical valve core and the inner wall of the valve seat can be subjected to local elastic sealing treatment, and the sealing effect is better due to multi-layer sealing, and the occurrence of the liquid leakage phenomenon of the valve seat is well prevented.

2. According to the utility model, the sealing element is arranged in a circular ring shape, and one side of the sealing element, which is contacted with the valve cavity, is arranged in a convex surface, so that the sealing element can be tightly attached to the inner wall of the valve cavity, and the sealing efficiency of the sealing element is improved.

3. According to the utility model, the feeding hole and the discharging hole are arranged on the outer side of the valve seat body through the positioning seat and the bolts, so that the two ends of the valve seat body are convenient to disassemble, assemble and position, so that the interior of the valve seat is convenient to overhaul and maintain, and the third sealing layer is arranged between the positioning seats, so that the tightness of the connection and fixation of the valve seat body, the feeding hole and the discharging hole is convenient to improve.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a principal cross-sectional view of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure at A of the present utility model;

FIG. 3 is a schematic view of the seal structure of the present utility model.

In the figure: 1. a valve seat body; 2. a feed inlet; 3. a discharge port; 4. a valve stem; 5. a connecting seat; 6. a spherical valve core; 7. a valve cavity; 8. a material conveying channel; 9. a first sealing layer; 10. a chute; 11. a seal; 12. a second sealing layer; 13. a limiting block; 14. a guide groove; 15. a spring; 16. a third sealing layer; 17. and a positioning seat.

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, 2 and 3, in the embodiment of the utility model, an intercommunication structure of valve parts and sealing elements comprises a valve seat body 1, wherein a feed inlet 2 and a discharge outlet 3 are arranged on the outer side of the valve seat body 1 through a positioning seat 17 and bolts, so that disassembly, assembly and positioning treatment are conveniently carried out on two ends of the valve seat body 1, overhaul and maintenance treatment are conveniently carried out on the inner part of the valve seat, a valve rod 4 is arranged on the upper side of the valve seat body 1 through a connecting seat 5, a spherical valve core 6 is arranged in a valve cavity 7 in one end of the valve rod 4, a material conveying channel 8 is arranged in the spherical valve core 6, a first sealing layer 9 is arranged on the outer side of the spherical valve core 6, comprehensive sealing treatment can be carried out on the spherical valve core 6 and the inner wall of the valve cavity 7, and a sealing element 11 is arranged on the outer side of the spherical valve core 6 at two ends of the material conveying channel 8 in an elastic sliding manner, so that local elastic sealing treatment can be formed on the spherical valve core 6 and the inner wall of the valve cavity 7, and multiple layers of sealing are better, and occurrence of a valve seat liquid leakage phenomenon is well prevented.

Preferably, the outer wall of the spherical valve core 6 is provided with a chute 10, and the sealing element 11 is slidably clamped in the chute 10, so that one end of the sealing element 11 is slidably clamped in the chute 10.

Preferably, the second sealing layer 12 is arranged on the outer side of the sealing element 11, so that the sealing performance of the contact between the outer side of the sealing element 11 and the inner wall of the valve cavity 7 is improved, and the third sealing layer 16 is arranged between the positioning seats 17, so that the sealing performance of connection and fixation between the positioning seats 17 is improved.

Preferably, the sealing element 11 is arranged in a circular ring shape, and one side of the sealing element 11, which is in contact with the valve cavity 7, is arranged to be convex, so that the sealing element 11 can be tightly attached to the inner wall of the valve cavity 7, and the sealing effect of one side of the sealing element 11 is improved.

Preferably, a positioning groove is formed in one side of the sealing element 11, and a spring 15 is arranged in the positioning groove and the sliding groove 10, so that the sealing element 11 can be conveniently and elastically arranged in the sliding groove 10, and the sealing performance of the sealing element 11 in contact with the inner wall of the valve cavity 7 can be improved.

Preferably, the inner wall of the chute 10 is provided with a guide groove 14, and two sides of the sealing element 11 are slidably arranged with the guide groove 14 through a limiting block 13, so that the sealing element 11 can be elastically slidably arranged in the chute 10, and the sealing property and the stability of the sliding connection of the sealing element 11 and the chute 10 are conveniently improved.

The working principle and the using flow of the utility model are as follows: through the first sealing layer 9 that installs in the ball valve core 6 outside, can carry out comprehensive sealing treatment to ball valve core 6 and valve pocket 7 inner wall, the sealing member 11 that is equipped with is slided to ball valve core 6 outside elasticity through the material conveying passageway 8 both ends for can form local elastic sealing treatment to ball valve core 6 and disk seat inner wall, multilayer is sealed, makes sealed effect better, prevents the emergence of disk seat weeping phenomenon well.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an intercommunication structure of valve spare part and sealing member, includes disk seat body (1), its characterized in that: feed inlet (2) and discharge gate (3) are installed through positioning seat (17) and bolt in the disk seat body (1) outside, valve rod (4) are installed through connecting seat (5) in disk seat body (1) upside, install spherical case (6) in valve pocket (7) inside valve rod (4) one end, and spherical case (6) are inside to have seted up material conveying passageway (8), first sealing layer (9) are installed in spherical case (6) outside, spherical case (6) outside elasticity slip card at material conveying passageway (8) both ends is equipped with sealing member (11).

2. An interconnecting structure for valve components and seals as claimed in claim 1, wherein: the outer wall of the spherical valve core (6) is provided with a chute (10), and the sealing piece (11) is slidably clamped in the chute (10).

3. An interconnecting structure for valve components and seals as claimed in claim 1, wherein: the second sealing layer (12) is arranged on the outer side of the sealing piece (11), and the third sealing layer (16) is arranged between the positioning seats (17).

4. An interconnecting structure for valve components and seals as claimed in claim 1, wherein: the sealing element (11) is arranged in a circular ring shape, and one side of the sealing element (11) contacted with the valve cavity (7) is arranged in a convex surface.

5. An interconnecting structure for valve components and seals as claimed in claim 2, wherein: a positioning groove is formed in one side of the sealing piece (11), and springs (15) are arranged in the positioning groove and the sliding groove (10).

6. An interconnecting structure for valve components and seals as claimed in claim 2, wherein: the inner wall of the sliding chute (10) is provided with a guide groove (14), and two sides of the sealing piece (11) are arranged in a sliding manner with the guide groove (14) through limiting blocks (13).