CN219159596U

CN219159596U - Sealing compensation type ball valve

Info

Publication number: CN219159596U
Application number: CN202320237283.6U
Authority: CN
Inventors: 池海
Original assignee: Yongjia Ristar Valve Co ltd
Current assignee: Yongjia Ristar Valve Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-06-09
Anticipated expiration: 2033-02-17

Abstract

The utility model belongs to the technical field of ball valves, and particularly relates to a sealing compensation type ball valve, which comprises: a valve body; a valve core; the valve rods are two and are symmetrically arranged on the upper side and the lower side of the valve core; the sealing unit is arranged between the water inlet end of the valve body and the valve core at one side; the valve sealing device comprises a valve body, a sealing unit, an elastic unit, a valve sealing piece and a supporting ring, wherein the elastic unit is arranged between the valve body and the sealing unit, the valve sealing piece is propped against a valve core, the supporting ring is arranged between the valve body and the valve sealing piece, an expansion groove is arranged on the valve sealing piece, and the expansion groove is arranged on one side of the valve sealing piece facing a channel, and the valve sealing device has the beneficial effects that: after the fluid passes through the channel, part of the fluid enters the expansion groove, so that the pressure generated by expansion of the expansion groove enables the valve sealing element to be well abutted against the valve core, thereby ensuring that the fluid cannot leak between the valve core and the sealing unit, and even if the valve sealing piece is worn after long-term use, the elastic unit can also provide an elastic compensation sealing unit, so that the sealing performance of the ball valve is always kept.

Description

Sealing compensation type ball valve

Technical Field

The utility model belongs to the technical field of ball valves, and particularly relates to a seal compensation type ball valve.

Background

Ball valves, i.e. valves using spheres as opening and closing members, have the main function of cutting off or connecting fluid passages in pipelines, have the characteristics of convenient operation, maintenance, durability and the like, and are widely applied to industries such as petroleum refining, long-distance pipeline, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like.

The traditional ball valve structure generally comprises a valve body, a valve core, a seal and the like, the seal of the general ball valve is arranged between the valve body and the valve core, the sealed structure is simpler, after a period of actual use, the bonding capability is weakened due to abrasion between the seal and the valve core, and at the moment, the ball valve is easy to leak.

Disclosure of Invention

The utility model aims at solving the technical problems, and provides a sealing compensation type ball valve which achieves the effect of improving the sealing performance.

In view of this, the present utility model provides a seal-compensating ball valve comprising:

the middle of the valve body is penetrated with a channel;

the valve core is arranged in the channel, a flow channel penetrates through the middle of the valve core, and the flow channel is correspondingly communicated with the channel of the valve body;

the valve rods are two and are symmetrically arranged on the upper side and the lower side of the valve core;

the sealing unit is arranged between the water inlet end of the valve body and the valve core at one side;

an elastic unit disposed between the valve body and the sealing unit in an axial direction of the passage,

the sealing unit further comprises a valve sealing piece and a supporting ring, the valve sealing piece is propped against the valve core, the supporting ring is arranged between the valve body and the valve sealing piece, an expansion groove is formed in the valve sealing piece, and the expansion groove is formed in one side, facing the channel, of the valve sealing piece.

Further, the sealing unit further includes:

a support washer groove provided at an outer circumferential wall of the support ring;

and the support gasket is arranged in the support gasket groove.

Further, the sealing unit further includes:

a fixed groove provided on the valve sealing member;

the fixed part is arranged on the supporting ring and is abutted against the fixed groove.

Further, the support ring further comprises:

a cladding for isolating the channel and the sealing unit;

and the support sealing ring is arranged between the support ring and the valve body.

In this technical scheme, support sealing ring plays sealed effect between valve body and cladding portion, prevents that fluid from leaking from the passageway and entering into the elastic element to can avoid fluid corrosion elastic element, improve the leakproofness of ball valve.

Further, the sealing unit further includes:

the spring seat is arranged on the valve body;

and one end of the spring is fixed on the spring seat, and the other end of the spring abuts against the supporting ring.

Further, the method further comprises the following steps:

the handle is U-shaped, and two ends of the handle are respectively connected with the two valve rods.

Further, the method further comprises the following steps:

the valve cover is sleeved on the valve rod and contacts with the valve body in a propping way;

a packing disposed between the valve cover and the valve stem;

and the packing is pressed between the valve cover and the valve rod by the pressing piece.

Further, the method further comprises the following steps:

the sealing ring is arranged between the valve cover and the valve body.

The beneficial effects of the utility model are as follows:

1. in the use process of the sealing compensation type ball valve, a part of fluid can enter the expansion groove after passing through the channel, the expansion groove can expand, and the pressure generated by expansion of the expansion groove can better abut against the valve core, so that the fluid is prevented from leaking between the valve core and the sealing unit, and even if a valve sealing piece is worn after long-term use, the elastic unit can also provide an elastic force compensation sealing unit, and the sealing performance of the ball valve is always kept.

2. In the use of the seal compensation type ball valve, because the handle is of a U-shaped structure and two ends of the handle are respectively connected with one ends of the two valve rods, which are not connected with the valve cores, the required operation force of the seal compensation type ball valve is smaller when the seal compensation type ball valve is used compared with a common ball valve, so that the ball valve is more convenient and easier to use.

Drawings

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

FIG. 2 is a schematic view of the structure of the part A of the present utility model;

FIG. 3 is a schematic view of the structure of part B of the present utility model;

FIG. 4 is a schematic view of the sealing unit of the ball valve of example 1 of the present utility model in operation;

FIG. 5 is a schematic view of a seal unit before fixing part punching in accordance with embodiment 3 of the present utility model;

FIG. 6 is a schematic structural view of the sealing unit of the present utility model;

figure 7 is an exploded view of the sealing unit of the present utility model,

the reference numerals in the drawings are:

1. a valve body; 11. a channel; 2. a valve core; 21. a flow passage; 3. a valve stem; 4. a sealing unit; 41. a valve seal; 411. an expansion slot; 42. a support ring; 421. a coating section; 422. supporting the sealing ring; 43. a support washer groove; 44. a support washer; 45. a fixing groove; 46. a fixing part; 5. an elastic unit; 51. a spring seat; 52. a spring; 6. a handle; 7. a valve cover; 8. a filler; 9. a pressing member; 100. and (3) sealing rings.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

It should be noted that, in the description of the present application, the terms "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc. generally refer to an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and merely for convenience of description of the present application and simplification of the description, the azimuth terms do not indicate and imply that the apparatus or element referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

It should be noted that, in this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Example 1:

the embodiment provides a seal compensation type ball valve, comprising:

the valve comprises a valve body 1, wherein a channel 11 penetrates through the middle of the valve body 1;

the valve core 2 is arranged in the channel 11, a flow channel 21 penetrates through the middle of the valve core 2, and the flow channel 21 is correspondingly communicated with the channel 11 of the valve body 1;

the valve rods 3 are two, and are symmetrically arranged on the upper side and the lower side of the valve core 2;

the sealing unit 4 is arranged between the water inlet end of the valve body 1 and the valve core 2 on one side;

an elastic unit 5, said elastic unit 5 being arranged between the valve body 1 and the sealing unit 4 in the axial direction of the passage 11,

the sealing unit 4 further comprises a valve sealing member 41 and a supporting ring 42, the valve sealing member 41 is abutted against the valve core 2, the supporting ring 42 is arranged between the valve body 1 and the valve sealing member 41, an expansion slot 411 is arranged on the valve sealing member 41, and the expansion slot 411 is arranged on one side of the valve sealing member 41 facing the channel 11.

In this embodiment, the valve core 2 is rotatably disposed in the seal compensation ball valve body, the flow channel 21 is communicated with the channel 11, the two valve rods 3 are symmetrically disposed on the upper and lower sides of the valve core 2 in the radial direction of the flow channel 21, the sealing unit 4 is disposed between the water inlet end of the valve body 1 and the valve core 2 on one side, compared with a ball valve with double-side seal, which may have fluid stay in the space between the seals on both sides, the single-side seal avoids the situation, in the use process of the seal compensation ball valve, a part of the fluid enters the expansion slot 411 after passing through the channel 11, the expansion slot 411 expands, the pressure generated by expansion of the expansion slot 411 can enable the valve sealing member 41 to better abut against the valve core 2, thereby ensuring that the fluid cannot leak between the valve core 2 and the sealing unit 4, and even if the valve sealing member 41 is worn after long-term use, the elastic unit 5 can provide the elastic force compensation sealing unit 4, and always maintain the tightness of the ball valve.

Example 2:

the present embodiment provides a seal compensation type ball valve having the following technical features in addition to the technical scheme including the above embodiment.

Further, the sealing unit 4 further includes:

a support washer groove 43, the support washer groove 43 being provided at an outer circumferential wall of the support ring 42;

a support washer 44, the support washer 44 being disposed in the support washer groove 43.

In the present embodiment, the support washer 44 plays a sealing role between the valve body 1 and the support ring 42, preventing leakage of fluid from the gap between the valve body 1 and the support ring 42, so that leakage of fluid in the ball valve can be avoided, and the support washer 44 improves the sealing property of the ball valve.

Example 3:

Further, the sealing unit 4 further includes:

a fixing groove 45, the fixing groove 45 being provided on the valve sealing member 41;

a fixing portion 46, the fixing portion 46 is disposed on the support ring 42, and the fixing portion 46 abuts against the fixing groove 45.

In the present embodiment, the fixing portion 46 abuts against the fixing groove 45 by press working, so that the valve sealing member 41 is well fixed between the valve body 2 and the support ring 42, and the sealing property of the ball valve is improved.

Example 4:

Further, the support ring 42 further includes:

a coating 421, the coating 421 for isolating the passage 11 and the sealing unit 4;

a support seal ring 422, said support seal ring 422 being arranged between the support ring 42 and the valve body 1.

In the present embodiment, the support seal ring 422 plays a sealing role between the valve body 1 and the coating portion 421, preventing fluid from leaking from the passage 11 into the elastic unit 5, thereby preventing the fluid from corroding the elastic unit 5 and improving the sealing property of the ball valve.

Example 5:

Further, the elastic unit 5 further includes:

a spring seat 51, the spring seat 51 being provided on the valve body 1;

and a spring 52, wherein one end of the spring 52 is fixed on the spring seat 51, and the other end of the spring is abutted against the support ring 42.

In the present embodiment, the spring 52 is compressed between the spring seat 51 and the support ring 42 in the axial direction of the passage 11, and the sealing unit 4 is compressed between the valve body 1 and the ring of the valve core 2, so that the sealing unit 4 is more closely attached to the valve core 2, and the sealing performance of the ball valve is improved.

Example 6:

Further, the method further comprises the following steps:

the handle 6, handle 6 is U-shaped, the both ends of handle 6 are connected with two valve rods 3 respectively.

In this embodiment, the handle 6 has a U-shaped structure, and two ends of the handle 6 are respectively connected with one ends of the two valve rods 3, which are not connected with the valve core 2, so that the required operation force of the seal compensation type ball valve is smaller compared with that of a general ball valve, and the ball valve is more convenient and easier to use.

Example 7:

Further, the method further comprises the following steps:

the valve cover 7 is sleeved on the valve rod 3 and is in contact with the valve body 1;

a packing 8, said packing 8 being arranged between the valve cap 7 and the valve stem 3;

the packing 8 is pressed between the valve cover 7 and the valve rod 3 by the pressing piece 9.

In this embodiment, adopt threaded connection between valve gap 7 and valve rod 3, and valve gap 7 is inconsistent with valve body 1, and packing 8 sets up can prevent that fluid from leaking out the ball valve between valve gap 7 and valve rod 3, can also the internal space of isolated external environment and ball valve simultaneously, makes between valve gap 7 and valve rod 3 reach sealed effect, adopts bolted connection between clamp 9 and valve gap 7, and clamp 9 can better fixed packing 8.

Example 8:

Further, the method further comprises the following steps:

a sealing ring 100, wherein the sealing ring 100 is arranged between the valve cover 7 and the valve body 1.

In this embodiment, the sealing ring 100 is disposed between the valve cover 7 and the valve body 1, so as to prevent fluid from leaking out of the ball valve, and isolate the external environment and the internal space of the ball valve, so that the sealing effect between the valve cover 7 and the valve body 1 is achieved.

The embodiments of the present application and the features of the embodiments may be combined without conflict, and the present application is not limited to the specific embodiments described above, which are merely illustrative, not restrictive, and many forms may be made by those of ordinary skill in the art, without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A seal compensating ball valve, comprising:

the valve comprises a valve body (1), wherein a channel (11) is penetrated in the middle of the valve body (1);

the valve core (2) is arranged in the channel (11), a flow channel (21) is penetrated in the middle of the valve core (2), and the flow channel (21) is correspondingly communicated with the channel (11) of the valve body (1);

the valve rods (3) are two, and are symmetrically arranged on the upper side and the lower side of the valve core (2);

the sealing unit (4) is arranged between the water inlet end of the valve body (1) and the valve core (2) on one side;

an elastic unit (5), the elastic unit (5) being arranged between the valve body (1) and the sealing unit (4) in the axial direction of the passage (11),

the sealing unit (4) further comprises a valve sealing element (41) and a supporting ring (42), the valve sealing element (41) is abutted against the valve core (2), the supporting ring (42) is arranged between the valve body (1) and the valve sealing element (41), an expansion groove (411) is formed in the valve sealing element (41), and the expansion groove (411) is formed in one side, facing the channel (11), of the valve sealing element (41).

2. A seal compensating ball valve according to claim 1, characterized in that the sealing unit (4) further comprises:

a support washer groove (43), the support washer groove (43) being provided on an outer peripheral wall of the support ring (42);

and a support washer (44), wherein the support washer (44) is arranged in the support washer groove (43).

3. A seal compensating ball valve according to claim 1, characterized in that the sealing unit (4) further comprises:

a fixing groove (45), the fixing groove (45) being provided on the valve seal (41);

and the fixing part (46) is arranged on the supporting ring (42), and the fixing part (46) is in interference with the fixing groove (45).

4. The seal compensating ball valve of claim 1, wherein the support ring (42) further comprises:

a coating (421), the coating (421) being used to isolate the channel (11) from the sealing unit (4);

and a support seal ring (422), wherein the support seal ring (422) is arranged between the support ring (42) and the valve body (1).

5. A seal compensating ball valve according to claim 1, characterized in that the elastic unit (5) further comprises:

a spring seat (51), the spring seat (51) being provided on the valve body (1);

and one end of the spring (52) is fixed on the spring seat (51), and the other end of the spring (52) is abutted against the support ring (42).

6. The seal-compensating ball valve of claim 1, further comprising:

the handle (6), handle (6) are U type, the both ends of handle (6) are connected with two valve rod (3) respectively.

7. The seal-compensating ball valve of claim 1, further comprising:

the valve cover (7) is sleeved on the valve rod (3) and is connected with the valve body (1);

a packing (8), wherein the packing (8) is arranged between the valve cover (7) and the valve rod (3);

the packing device comprises a compressing piece (9), wherein the compressing piece (9) is connected with a valve cover (7), and the packing (8) is compressed between the valve cover (7) and a valve rod (3) by the compressing piece (9).

8. The seal-compensating ball valve of claim 7, further comprising:

the sealing ring (100) is arranged between the valve cover (7) and the valve body (1).