CN203963091U - A kind of top-loading ball valve - Google Patents
A kind of top-loading ball valve Download PDFInfo
- Publication number
- CN203963091U CN203963091U CN201420394256.0U CN201420394256U CN203963091U CN 203963091 U CN203963091 U CN 203963091U CN 201420394256 U CN201420394256 U CN 201420394256U CN 203963091 U CN203963091 U CN 203963091U
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- Prior art keywords
- sealing
- spring seat
- ball valve
- fixture
- holding space
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Abstract
The utility model relates to a kind of top-loading ball valve, at the preload pressure that passes through between described fixture and spring seat, described fixture is resisted against to the elastic member on described spheroid, be arranged on the described fixture of sealing between described fixture and spring seat and the 3rd Sealing of spring seat, be arranged on the first holding space of described the second Sealing of installation between described spring seat and described valve body, and by spacing described the second Sealing limit assembly being arranged in described the first holding space.Solved the Sealing problem that causes sealing effect to reduce that moves around on fixture, thus provide a kind of can fixing seals, improve the top-loading ball valve of sealing effect.
Description
Technical field
The utility model relates to a kind of ball valve, belongs to technical field of valve manufacturing.
Background technique
Ball valve is reliable owing to having sealing, and feature simple in structure, easy to maintenance, becomes one of widely used valve.It is few that the relatively side-mounted ball valve of top-loading ball valve has outer leak source, and pipe stress is on its impact advantage such as less, and top-loading ball valve is widely used because can realize easily on-line maintenance simultaneously.In top-loading ball valve, DBB and DIB are two kinds of valve seat functional forms, and wherein, DBB valve seat also claims single piston effect valve seat, and each valve seat can be resisted the active force of a direction, can discharge lumen.DIB valve seat is divided into again DIB-1 valve seat and DIB-2 valve seat, and each valve seat opposing both direction active force of DIB-1 valve seat, claim double-piston effect valve seat, but this structure need arrange lumen pressure-relieving device; The valve seat of DIB-2 entrance point is DBB, and outlet end is DIB, is again single, double piston effect valve seat, this structure pass through the entrance point lumen pressure of automatically releasing.DIB type valve seat, due to favorable sealing property, is widely used in recent years.
Be as shown in Figure 1 disclosed a kind of ball valve in prior art, comprise: spheroid 1, valve body 2, be positioned at the fixture 31 between spheroid 1 and valve body 2, fixture 31 1 sides are tightly connected with spheroid 1 by the first Sealing 4, between fixture 31 and valve body 2, be provided with elastic member 6, on fixture 31 opposite sides, also form shoulder, the second Sealing 5 is located on described shoulder, and fixture 31 is tightly connected with valve body 2 by the second Sealing 5.In the assembly process of ball valve, valve component (fixture 31+ spring seat 32) first moves to valve body 2 one end, reserve sufficient space and place spheroid 1, as shown in Figure 2, after spheroid 1 is put into, valve component is drawn close and is pushed spheroid 1 to spheroid 1 again and realizes the sealing between fixture 31 and spheroid 1 under the effect of the spring-back force of elastic member 6, the distance L 2 that therefore the width L1+ valve component of the length L=Sealing of shoulder moves to valve body one end; In order to realize assembling work, often can reserve certain space at Sealing place.The existence in this space can exert an adverse impact in practical work process, and specifically as shown in Figure 3, when the entrance pressure of right side, the second Sealing 5 can be shifted onto its left side along Sealing groove by medium; As shown in Figure 4, when the entrance pressure of left side, the second Sealing 5 can be shifted onto its right side along Sealing groove by medium.
Because the second Sealing 5 moves around on fixture 31, produce friction, rubbing surface easily abrades on the one hand, on the other hand, when a side entrance pressure, the second Sealing 5 is pulled on fixture 31 or valve body 2 end faces and can be clashed into, and the frictional force of interior outer seal lip is when inconsistent, easily cause the non-design ideal state of the second Sealing 5 physical location state, cause the sealing effect of this ball valve greatly to reduce, sealing stability can not well be ensured, this phenomenon has been passed through verification experimental verification.
Model utility content
For this reason, technical problem to be solved in the utility model is the Sealing problem that causes sealing effect to reduce that moves around on fixture, thus provide a kind of can fixing seals, improve the top-loading ball valve of sealing effect.
For solving the problems of the technologies described above, a kind of top-loading ball valve of the present utility model, comprise: be positioned at the valve seat between spheroid and valve body, described valve seat comprises the fixture being tightly connected by the first Sealing with described spheroid, the spring seat being tightly connected by the second Sealing with described valve body, also comprise that described fixture is resisted against the elastic member on described spheroid by the preload pressure that passes through being arranged between described fixture and spring seat, be arranged on the described fixture of sealing between described fixture and spring seat and the 3rd Sealing of spring seat, be arranged on described second Sealing the first holding space of installation between described spring seat and described valve body, and by spacing described the second Sealing limit assembly being arranged in described the first holding space.
Described limit assembly comprises first ladder with low level step surface and high-order step surface being arranged on described spring seat, and be arranged on the matable assembly on described low level step surface, described the first ladder and described matable assembly form the first holding space described at least one, and described the second Sealing is positioned at described the first holding space and described the first ladder and described matable assembly and fits respectively.
Described the second Sealing is two-way sealing ring, and now, described the first holding space is one.
In addition, described the second Sealing is two one-way sealing seal that oppositely arrange, and described the first holding space is two, a described one-way sealing seal of the inner installation of each the first holding space.
Described matable assembly comprises the divided ring being arranged on described low level step surface, is socketed in the pressure ring on described divided ring, and the block of one end and described the second Sealing laminating, the other end and the laminating of described pressure ring.
The groove forming on described low level step surface, described divided ring is fixedly installed on described groove by screw.
On described spring seat, form the second ladder, on described the second ladder and described valve body, the annular protrusion of moulding forms the second holding space, is provided with for making the close-fitting parts that tighten of fixture and spring seat in described the second holding space.
The described parts that tighten are chain.
On the shoulder of described the second ladder, be provided with screw.
On described fixture, form to coordinate with spring seat and form the first step of the first installing space and coordinate the second step that forms the second installing space with spring seat, described the 3rd Sealing is installed in described the first installing space, described elastic member is installed in described the second installing space.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) in the utility model, elastic member is arranged between fixture and spring seat, in actual use, the 3rd Sealing makes to keep between fixture and spring seat good sealing effect, between described spring seat and described valve body, owing to being provided with, the first holding space of described the second Sealing is installed, and by spacing described the second Sealing limit assembly being arranged in described the first holding space, limit assembly makes the second Sealing by regularly, seamless unoccupied place is arranged in the first holding space, pass into medium in valve body time, the second Sealing both sides all have against, the second Sealing can not produce displacement because being subject to the pressure of medium, thereby improve the sealing effect of valve body.
(2) in the utility model, described limit assembly comprises first ladder with low level step surface and high-order step surface being arranged on described spring seat, and be arranged on the matable assembly on described low level step surface, described the first ladder and described matable assembly form the first holding space described at least one, the second Sealing is positioned at described the first holding space, the first ladder on second Sealing one end and spring seat against, the other end and matable assembly against, by both sides against the second Sealing is fixedly installed in the first holding space firmly, thereby guarantee in the time that any side obtains pressure medium, the second Sealing is can be well spacing and can not move along spring seat, ensure sealing effect.
(3) in the utility model, be set to two-way sealing ring by described the second Sealing, thereby first holding space only need to be set and just be enough to install described the second Sealing, and two-way sealing ring can be realized two way sealed effect, like this no matter be ball valve left side entrance pressure or right side entrance pressure, the medium entering can not pass through the gap between fixture and spring seat and spring seat and valve body, and the second Sealing coordinates and more strengthened sealing effect together with the 3rd Sealing.
(4) in the utility model, described the second Sealing is set to two one-way sealing seal that oppositely arrange, realize the sealing to both sides by two one-way sealing seal that oppositely arrange, in the time of the entrance pressure of ball valve left side, the 3rd Sealing is realized sealing effect together with sealing the one-way sealing seal of left side pressure, in the time of the entrance pressure of ball valve right side, the 3rd Sealing is realized sealing effect together with sealing the one-way sealing seal of right atrial pressure, because the sealing effect of one-way sealing seal is better than two-way sealing ring, and price is also cheaper, therefore can improve sealing effect and cost-saving.
(5) in the utility model, described matable assembly comprises the divided ring being arranged on described low level step surface, be socketed in the pressure ring on described divided ring, and the block of one end and described the second Sealing laminating, the other end and the laminating of described pressure ring, divided ring, pressure ring and this three's of block cooperation is firmly fixed in described the first holding space the second Sealing, and ensure that the second Sealing both sides do not leave any clearance space, prevent that the second Sealing is subjected to displacement, improve the sealing effect of valve body.
(6) in the utility model, on the second ladder of described spring seat and described valve body, the annular protrusion of moulding forms the second holding space, in described the second holding space, be provided with for making the close-fitting parts that tighten of fixture and spring seat, thereby spring seat is resisted against on fixture firmly, further make fixture be resisted against firmly on spheroid, improve sealing effect.
(7) in the utility model, by screw being set on the shoulder at described the second ladder, make dismounting frock can utilize this screw to be fixedly connected with spring seat, in disassembly process, utilize dismounting frock that fixture and spring seat are strained to valve body central direction, conveniently complete the dismounting operation of ball valve.
(8) in the utility model, on described fixture, form to coordinate with spring seat and form the first step of the first installing space and coordinate the second step that forms the second installing space with spring seat, described the 3rd Sealing is installed in described the first installing space, described elastic member is installed in described the second installing space, between fixture and spring seat, elastic member is set, make this ball valve in disassembly process, only need to utilize dismounting frock linking springs seat and drive fixture to strain to valve body central direction, and then insert or take out the dismounting that tightens parts and just can complete spheroid, and do not need as elastic member being arranged on to the ball valve between spring seat and valve body, when needing tensioning fixator, strut spring seat and just can complete dismounting operation, therefore the disassembly process of ball valve of the present utility model is more simple and convenient.Simultaneously described the 3rd Sealing is installed in described the first installing space and has also been ensured the sealing effect of valve body.
Brief description of the drawings
For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the structural representation of ball valve when fixture separates with spheroid in prior art;
Fig. 2 is the structural representation of ball valve when fixture and ball seal in prior art;
Fig. 3 is the stressed and displacement situation schematic diagram of the second Sealing in the time of the entrance pressure of left side in ball valve shown in Fig. 2;
Fig. 4 is the stressed and displacement situation schematic diagram of the second Sealing in the time of the entrance pressure of right side in ball valve shown in Fig. 2;
Fig. 5 is ball seat structural representation in embodiment 1 of the present utility model;
Fig. 6 is the second Sealing of ball valve and the schematic diagram that coordinates of limit assembly in embodiment 1 of the present utility model.
In figure, reference character is expressed as: 1-spheroid; 2-valve body; 3-valve seat, 31-fixture, 310-first step, 311-second step, 32-spring seat, 320-the first ladder, 321-the second ladder; 4-the first Sealing; 5-the second Sealing, the seal of 50-one-way sealing, 51-block, 52-divided ring, 53-pressure ring; 6-elastic member; 7-the 3rd Sealing; 8-tightens parts.
Embodiment
Understand for technical characteristics of the present utility model, object and effect being had more clearly, now contrast brief description of the drawings embodiment of the present utility model.
Embodiment 1
As shown in Figure 5 and Figure 6, a kind of top-loading ball valve of the present embodiment, comprise: be positioned at the valve seat 3 between spheroid 1 and valve body 2, described valve seat 3 comprises the fixture 31 being tightly connected by the first Sealing 4 with described spheroid 1, the spring seat 32 being tightly connected by the second Sealing 5 with described valve body 2, also comprise that described fixture 31 is resisted against the elastic member 6 on described spheroid 1 by the preload pressure that passes through being arranged between described fixture 31 and spring seat 32, be arranged on the described fixture 31 of sealing between described fixture 31 and spring seat 32 and the 3rd Sealing 7 of spring seat 32, be arranged on the first holding space of described the second Sealing 5 of installation between described spring seat 32 and described valve body 2, and by spacing described the second Sealing 5 limit assembly being arranged in described the first holding space.
Elastic member 6 is arranged between fixture 31 and spring seat 32, elastic member is arranged between fixture 31 and spring seat 32, in actual use, the 3rd Sealing 7 makes to keep between fixture and spring seat good sealing effect, between described spring seat 32 and described valve body 2, owing to being provided with, the first holding space of described the second Sealing 5 is installed, and by spacing described the second Sealing 5 limit assembly being arranged in described the first holding space, limit assembly makes the second Sealing 5 by regularly, seamless unoccupied place is arranged in the first holding space, pass into medium in valve body 2 time, the second Sealing 5 both sides all have against, the second Sealing 5 can not produce displacement because being subject to the pressure of medium, thereby improve the sealing effect of valve body 2.
The top-loading ball valve of the present embodiment, described limit assembly comprises first ladder 320 with low level step surface and high-order step surface being arranged on described spring seat 32, and be arranged on the matable assembly on described low level step surface, described the first ladder 320 forms two described the first holding spaces with described matable assembly, and described the second Sealing 5 is positioned at described the first holding space and described the first ladder 320 and described matable assembly and fits respectively.Make the first ladder 320 on second Sealing 5 one end and spring seat 32 against, the other end and matable assembly against, by both sides against the second Sealing 5 is fixedly installed in the first holding space firmly.
The top-loading ball valve of the present embodiment, described matable assembly comprises the divided ring 52 being arranged on described low level step surface, be socketed in the pressure ring 53 on described divided ring 52, and one end and described the second Sealing 5 laminatings, the other end and described pressure ring 53 block 51 of fitting.Divided ring 52, pressure ring 53 coordinate the second Sealing 5 are firmly fixed in described the first holding space together with block 51, and ensure that the second Sealing 5 both sides do not leave any clearance space, prevent that the second Sealing 5 is subjected to displacement, improve the sealing effect of valve body 2.
The top-loading ball valve of the present embodiment, the groove forming on described low level step surface, described divided ring 52 is fixedly installed on described groove by screw, described groove not only provides larger space for described divided ring 52 and screw are installed, and, the sidewall of described groove stops described divided ring 52, and described divided ring 52 can not be moved.The top-loading ball valve of the present embodiment, described the second Sealing 5 is two-way sealing ring, described the first holding space is one.Second Sealing 5 that is arranged so that of two-way sealing ring can be realized two way sealed effect, like this no matter be ball valve left side entrance pressure or right side entrance pressure, the medium entering can not pass through the gap between fixture 31 and spring seat 32 and spring seat 32 and valve body 2, and the second Sealing 5 coordinates the effect of having played sealing together with the 3rd Sealing 7.
The top-loading ball valve of the present embodiment, on described spring seat 32, form the second ladder 321, on described the second ladder 321 and described valve body 2, the annular protrusion of moulding forms the second holding space, is provided with for making fixture 31 and the close-fitting parts 8 that tighten of spring seat 32 in described the second holding space.Tighten in the second holding space that annular protrusion that parts 8 are arranged on moulding on the second ladder of described spring seat and described valve body 2 forms, will tighten parts 8 and pack in the second holding space, make fixture 31 being resisted against on described spheroid 1 tightly.
The top-loading ball valve of the present embodiment, described in tighten parts 8 for chain.
The top-loading ball valve of the present embodiment, is provided with screw on the shoulder of described the second ladder 321.Make dismounting frock can utilize this screw, realization is fixedly connected with spring seat 32, in disassembly process, utilizes dismounting frock that fixture 31 and spring seat 32 are strained to ball valve central direction, conveniently completes the dismounting operation of ball valve.
The top-loading ball valve of the present embodiment, as shown in Figure 5, the side that described spring seat 32 matches with described fixture 31 is ladder-type structure, correspondingly, the side that described fixture 31 matches with described spring seat 32 is also ladder-type structure, and the top of described fixture 31 is inserted in described spring seat 32, and the bottommost of described fixture 31 aligns substantially with described spring seat 32, and reserve a little gap, fixture 31 is convenient to towards described valve body 2 direction motions in this gap.Particularly, on described fixture 31, form to coordinate with spring seat 32 and form the first step 310 of the first installing space and coordinate the second step 311 that forms the second installing space with spring seat 32, described the 3rd Sealing 7 is installed in described the first installing space, described elastic member 6 is installed in described the second installing space.Like this be arranged so that ball valve in the present embodiment is in disassembly process, only need to utilize dismounting frock linking springs seat 32 and drive fixture 31 to strain to valve body central direction, and then insert or take out the dismounting that tightens parts 8 and just can complete valve body, and do not need as elastic member 6 being arranged on to the ball valve between spring seat 32 and valve body, when needing tensioning fixator 31, strut spring seat 32 and just can complete dismounting operation, therefore the disassembly process of the ball valve in the present embodiment is more simple and convenient.The sealing effect that described the 3rd Sealing has also ensured valve body is installed in described the first installing space.
It should be noted that, for realizing sealing effect, described the first holding space can arrange more, for example 2,3,4 etc., the magnitude setting of the first holding space should not become the restriction to the utility model protection domain.
Embodiment 2
The present embodiment provides a kind of top-loading ball valve, it is the distortion on embodiment 1 basis, in the present embodiment, described the second Sealing 5 is two one-way sealing seal 50 that oppositely arrange, described the first holding space is two, a described one-way sealing seal 50 of the inner installation of each the first holding space.
Realize the sealing to both sides by two one-way sealing seal that oppositely arrange, in the time of the entrance pressure of ball valve left side, the 3rd Sealing 7 is realized sealing effect together with sealing the one-way sealing seal of left side pressure, in the time of the entrance pressure of ball valve right side, the 3rd Sealing 7 is realized sealing effect together with sealing the one-way sealing seal of right atrial pressure, because the sealing effect of one-way sealing seal is better than two-way sealing ring, and price is also cheaper, therefore can improve sealing effect and cost-saving.
Obviously, above-described embodiment is only for example is clearly described, not the restriction to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all mode of executions.And among the protection domain that the apparent variation of being extended out thus or variation are still created in the utility model.
Claims (10)
1. a top-loading ball valve, comprise: be positioned at the valve seat (3) between spheroid (1) and valve body (2), described valve seat (3) comprises the fixture (31) being tightly connected by the first Sealing (4) with described spheroid (1), the spring seat (32) being tightly connected by the second Sealing (5) with described valve body (2)
It is characterized in that, also comprise that described fixture (31) is resisted against the elastic member (6) on described spheroid (1) by the preload pressure that passes through being arranged between described fixture (31) and spring seat (32), be arranged on the described fixture of sealing (31) between described fixture (31) and spring seat (32) and the 3rd Sealing (7) of spring seat (32), be arranged on the first holding space of described the second Sealing of installation (5) between described spring seat (32) and described valve body (2), and by spacing described the second Sealing (5) limit assembly being arranged in described the first holding space.
2. top-loading ball valve according to claim 1, it is characterized in that: described limit assembly comprises first ladder (320) with low level step surface and high-order step surface being arranged on described spring seat (32), and be arranged on the matable assembly on described low level step surface, described the first ladder (320) and described matable assembly form the first holding space described at least one, and described the second Sealing (5) is positioned at described the first holding space and described the first ladder (320) and described matable assembly and fits respectively.
3. top-loading ball valve according to claim 2, is characterized in that: described the second Sealing (5) is two-way sealing ring, and described the first holding space is one.
4. top-loading ball valve according to claim 2, it is characterized in that, described the second Sealing (5) is two one-way sealing seal (50) that oppositely arrange, described the first holding space is two, each the first holding space described one-way sealing seal of inner installation (50).
5. according to the top-loading ball valve described in claim 3 or 4, it is characterized in that, described matable assembly comprises the divided ring (52) being arranged on described low level step surface, be socketed in the pressure ring (53) on described divided ring (52), and the block (51) of one end and described the second Sealing (5) laminating, the other end and described pressure ring (53) laminating.
6. top-loading ball valve according to claim 5, is characterized in that, on described low level step surface, forms groove, and described divided ring (52) is fixedly installed on described groove by screw.
7. according to arbitrary described top-loading ball valve in claim 1-4, it is characterized in that, on described spring seat (32), form the second ladder (321), described the second ladder (321) forms the second holding space with the annular protrusion of the upper moulding of described valve body (2), is provided with for making fixture (31) and the close-fitting parts (8) that tighten of spring seat (32) in described the second holding space.
8. top-loading ball valve according to claim 7, is characterized in that, described in to tighten parts (8) be chain.
9. top-loading ball valve according to claim 8, is characterized in that, on the shoulder of described the second ladder (321), is provided with screw.
10. according to the top-loading ball valve described in any one in claim 1-4, it is characterized in that, on described fixture (31), form to coordinate with spring seat (32) and form the first step (310) of the first installing space and coordinate the second step (311) that forms the second installing space with spring seat (32), described the 3rd Sealing (7) is installed in described the first installing space, described elastic member (6) is installed in described the second installing space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394256.0U CN203963091U (en) | 2014-07-16 | 2014-07-16 | A kind of top-loading ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420394256.0U CN203963091U (en) | 2014-07-16 | 2014-07-16 | A kind of top-loading ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203963091U true CN203963091U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420394256.0U Expired - Fee Related CN203963091U (en) | 2014-07-16 | 2014-07-16 | A kind of top-loading ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203963091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003677A (en) * | 2015-04-16 | 2015-10-28 | 上海联科阀门成套设备有限公司 | Ball valve |
| CN113154077A (en) * | 2021-05-07 | 2021-07-23 | 纽托克流体控制有限公司 | Top-mounted type gas storage metal hard sealing ball valve capable of being maintained on line |
-
2014
- 2014-07-16 CN CN201420394256.0U patent/CN203963091U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003677A (en) * | 2015-04-16 | 2015-10-28 | 上海联科阀门成套设备有限公司 | Ball valve |
| CN105003677B (en) * | 2015-04-16 | 2018-10-26 | 上海联科阀门成套设备有限公司 | A kind of ball valve |
| CN113154077A (en) * | 2021-05-07 | 2021-07-23 | 纽托克流体控制有限公司 | Top-mounted type gas storage metal hard sealing ball valve capable of being maintained on line |
| CN113154077B (en) * | 2021-05-07 | 2022-06-03 | 纽托克流体控制有限公司 | Top-mounted type gas storage metal hard sealing ball valve capable of being maintained on line |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20210716 |